nad c375bee service manual

59
L A U N A M E C I V R E S C375BEE C/AH C375BEE H A / C STEREO INTEGRATED AMPLIFIER STEREO INTEGRATED AMPLIFIER

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NAD C375BEE service manual

TRANSCRIPT

Page 1: NAD C375BEE service manual

LAU

NA

ME

CIVRESLAU

NA

ME

CIVR

ESC375BEE C/AH

© NAD 2010

NAD ELECTRONICS INTERNATIONALTORONTO

C375B

EE

HA/

C

STEREO

INTEG

RATED

AM

PLIFIER C375BEE

HA/

C

ST

EREO

INTE

GRA

TED

AM

PLIF

IER

STEREO INTEGRATED AMPLIFIER

Page 2: NAD C375BEE service manual

CONTENTS FRONT PANEL/REAR PANEL VIEW���������������������������������������������3 SPECIFICATIONS�������������������������������������������������������������4 ALIGNMENT PROCEDURE/ALIGNMENT POINTS�������������������������������5-7 WIRING DIAGRAM������������������������������������������������������������8 SCHEMATIC DIAGRAM�����������������������������������������������������9-18 PCB LAYOUT�������������������������������������������������������������19-27 ELECTRICAL PARTS LIST�������������������������������������������������28-48 EXPLODED VIEW������������������������������������������������������������49 EXPLODED VIEW PARTS LIST������������������������������������������������50 PACKING DIAGRAM����������������������������������������������������������51VERSION HISTORY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

SERVICE SAFETY PRECAUTIONS 1. Replacing the Fuses CAUTION: FOR CONTINUED PROTECTION AGAINST THE RISK OF FIRE REPLACE ONLY WITH SAME TYPE OF FUSE. REFERENCE NO. PART NUMBER DESCRIPTION Rear Panel AH A20-12103-00 Littelfuse618 T10AL/250V C A20-12702-20 Littelfuse618 T5AL/250V STANDBY Board F401 A20-12102-00 Littelfuse618 T1AL/250V NOTE: *AH : North American version only *C : European version only 2. Safety-check out (North American model only) Before returning the product to the customer, make leakage current or resistance measurements to determine that exposed parts are acceptably insulated from the supply circuit. Parts marked with the symbol are critical with regard to the risk of fire and electric shock.Replace only parts recommended by the manufacturer.

- 2 -

Page 3: NAD C375BEE service manual

module non-service-part

- 3 -

Page 4: NAD C375BEE service manual

PREAMPLIFIERS SECTION THD(2V in 2V out,CCIF IMD,DIM 100) < 0.004 % Signal/Noise IHF re 500mV output A wtd. > 102 dB S/N re 2V output, max volume > 110 dB S/N re 100mV o/p (unity gain) > 92 dB Channel separation 1KHz > 80 dB 10KHz > 70 dB Input impedance 100kohms+320pF Max input, 0.1% thd > 8 V rms Output impedance pre out 75 ohms Output impedance variable out < 325 ohms Output impedance tape out source Z + 1k ohms Input sensitivity for 500mV out 158 mV Frequency response 20-20k tone defeat on < +/- 0.1dB

tone defeat off < +/- 0.5 dB Max output ( 0.03% thd) IHF load > 10 V Max output 600 ohm,s load > 10V Tone controls Bass at 100Hz +/- 8 dB

Treble at 10KHz +/- 5dB

POWER AMPLIFIERS SECTION Continuous average power , stereo,8 and 4 ohms at rated thd ,20-20k > 150W Continuous average power 8 ohms , bridge mode > 330W Rated thd, 20-20k, SMPTE and CCIF IMD, DIM 100 < 0.009% Clipping power ( 1% thd at 1kHz) >170W IHF dynamic power 8 ohms >250W IHF dynamic power 4 ohms >410W IHF dynamic power 2 ohms >600W IHF dynamic power 8 ohms(Bridge Mode) >800W IHF dynamic power 4 ohms(Bridge Mode) >1200W Peak output current 1msec, 1 ohm > 50A S/N A wtd re 1 W >102 dB S/N A Wtd re 150W >123 dB Damping factor ( re 8 ohms, 50 Hz and 1kHz) > 200 Frequency response 20-20k < +/- 0.1 dB Frequency response - 3dB 3Hz – 70 kHz Input impedance 10kohms+200pF Input sensitivity for rated power 1.2 V Voltage gain 29dB Headphone output impedance 270 ohms Channel separation. 1kHz > 85 dB

10kHz > 75 dB Trigger out Output resistance < 120 ohms Output current 50mA Output voltage +12V OVERALL CD In Speaker Out THD 20-20k, CCIF IMD, DIM 100 , 0.25W to rated power < 0.009% S/N A wtd re 1 W > 94dB S/N A wtd re 150W ( volume set for 2V input) > 113 dB Frequency response 20-20k Tone defeat in < +/- 0.2 dB Frequency response -3dB 10 - 65kHz Channel separation 1KHz > 80 dB 10KHz > 70 dB Rated power ( 230 or 120 V AC 50.60 Hz) 290 W Standby power <1W Idle power <120W Net weight 15.3 kg Shipping weight 18 kg Dimensions 435x133x352 mm

- 4 -

SPECIFICATIONS

Page 5: NAD C375BEE service manual

A. DC OFFSET VOLTAGE The DC OFFSET between OFFSET Test Point and AGND must be within 0+/-20mV. B. IDLING CURRENT The idling current in the output stage of the poweramp should be set to 30mA+/-5mA per pnp-npn transistor pair (This means the mid point voltage is 6.6mV with down limit of 5.5mV and up limit of 7.7mV). The alignment procedure is: At first, adjust RV102 (Markedas “Idling Current ADJ” in the drawing page 6) for a voltage of 6.6mV +/- 1mV between Test point 1 and 2. Then preheat the unit for 1 minutes, let idling current settled and then readjust to 6.6mV +/- 1mV. This is a no-load adjustment. Pls note: Though the idling current is set as 6.6mV +/-1mV during the adjustment, due to the influence of varied ambient temperature and mains voltage etc., the idling current will drift after some time. During the normal checking of idling current in the service field, it’s acceptable as long as the voltage is in the range of 5.5mV—7.7mV. C. ISC SENSITIVITY The ISC sensing voltage can allow 0mV+/-50mV. But, for the alignment process in our factory, we tighten the limit to 0mV+/-10mV. That is to adjust Pot RV103 (as marked as “ISC SENS ADJ” in the drawing page 6) to get a voltage between the “ISC SENSE TEST POINT” and AGND to be 0mV+/-10mV. D. MINIMUM VOLUME LEAKAGE CANCELLATION The volume control, 20k potentiometer has a finite end stop resistance, variable and about 7 ohms max, so at minimum volume there is some signal leakage to pre out, appearing 29 dB higher at poweramp out. The cancellation circuit applies a fraction of the signal to the negative input of the line out amp to cancel this leakage. The alignment procedure is: feed 1KHz/2V signal in CD. Set volume for 10V speaker out as 0 dB reference. Then set vol to minimum. Adjust RV307 (Marked as “LEFT MIN. LEAKAGE ADJ” in the drawing page 7) for a minimum at left speaker out, the reading should be < -86 dB, or 0.5mV. Adjust RV308 (Marked as “RIGHT MIN. LEAKAGE ADJ” in the drawing page 7) for a voltage minimum at right preout, the reading should be < -86 dB or 0.5 mV. E. FREQUENCY RESPONSE The frequency response should be set to 0+/-0.3dB. The alignment procedure is: Disable tone defaet first, feed 1KHz/2V to CD, Adjust Preout to 500mV as 0dB reference level. Change to 20Hz and set RV305 (Marked as “LEFT FREQUENCY RESPONSE ADJ” in thedrawing on page 7) to within +/-0.1dB. Then repeate the above for the RHC, adjust RV306(Marked as "RIGHT FREQUENCY RESPONSE ADJ” in the drawing below) to within +/-0.1dB.

- 5 -

ALIGNMENT PROCEDURE

Page 6: NAD C375BEE service manual

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- 6 -

ALIGNMENT PROCEDURE

Page 7: NAD C375BEE service manual

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- 7 -

ALIGNMENT PROCEDURE

Page 8: NAD C375BEE service manual

P300

LEFT

PO

WER

AM

P B

OA

RD

RIG

HT

POW

ERA

MP

BO

AR

D

TO P

201B

PAD6 PAD5 PAD2 PAD3 PAD4 PAD1

P401 P402

FROM PAD1-6

FRO

M P

203A

FRO

M P

211A

FRO

M P

209A TO

LEF

T P1

01B

TO L

EFT

P103

B

TO P901B

TO L&R P102B

FROM P504A

FRO

M P

503A

TO P

205B

TO P

302B

FRO

M P

501A

TO P402B

FROM P502A

FROM XFORMER FROM XFORMER

FROM XFORMER FROM XFORMER

FROM P301A

TO P202BTO STAR GNDTO P208B

FROM P801A

FRO

M R

EAR

PA

NEL

L&

N

TO P204B

FROM P701A

FROM P300

TO R

IGH

T P1

03B

TO R

IGH

T P1

01B

FRO

M P

212A

FRO

M P

210A

FRO

M P

203A

MAIN BOARD

BINDING POST BOARDRS232 BOARD

HEADPHONE BOARDSTANDBY BOARD

DISPLAY BOARD

TONE BOARD

TO EXTEND MODULE

P404BP404B

AC INLETAC INLET

1 2 J701J701

P212AP212A

P504AP504A

P103BP103B

P203AP203A

P205BP205B

P801AP801A

P209AP209A

PO

WE

R S

WIT

CH

PO

WE

R S

WIT

CH1

2

P210AP210A

P102BP102B

J402J402

P502AP502A

P211AP211A

P206BP206B

P50

1AP

501A

G2G1G2G1

P402BP402B P30

2BP

302B

P101BP101B

P901BP901B

P202BP202B

P301AP301A

AC OUTLETAC OUTLET

P208BP208B

P103BP103B

P213BP213B

P701AP701A

P207BP207B

P50

3AP

503A

P101BP101B

P102BP102B

J401J401

P403BP403B

P201BP201B

P204BP204B

P214BP214B

- 8 -

WIRING DIAGRAM

FROM XFORMER (MDC 8.8V VERSION)P217B

Page 9: NAD C375BEE service manual

ISCBIRIDGE

SCN/MUTE

GNDOUT

IN

PROTECT

FB

TP2

SCP

O/P

-15V

VCC

+80V

VSS

VCC

-80V

+15V

-15V

-15V

VCC

+15V+15V-15V

+15V

+80V

-80V

1

1

1

/5W /5W /5W /5W

TO M

AIN

BO

AR

D

/1%

/1KV

/100V

/1W

/1/4W

/100

V

/1W/1%

/1W/1%

/1W/1%

/1%

/1/2W

/1%

/1W/1%

DC SERVO

/100

V

/3W

/1W

/1%

/1KV

TO M

AIN

BO

AR

D

All Polyester capacitors are 63V 10% unless noted.All Elec. capacitors are 50V 20% unless noted.All Resistor are 1/6W 5% RJ13 unless noted.All Zener diode are 1/2W unless noted.

ISC COMPARATOR

/3W

/3W

/1%

/1KV

/1KV

/1KV

/25V

/25V

/1/2W

MPSA42MPSA92

b ce

MPSA06MPSA56

2SA21212SC5949

KSA1220AKSC2690A

bce b c ebc

/1/4W

e

/1/4W

/1/4W

2SA1013

/1/4W

/1/4

W

2SC2383

/1/2W

/100

V

/1KV

/1KV

/5W

/1KV

/1%

/1/4W

/1%

/3W

/1%

TO M

AIN

BO

AR

D

c be

/1/2W

/5W

/1/4W

/1/2W

/250V

/1%

/3W

2SA9702SA10152SC18152SC2240

TEST POINT

/5W

/1KV

/1/4W

/100

V

/1%

/100

V

/1KV/1%

/250

V

/5W

/100

V

/100

V

/1KV

/1KV

Q152 mount tomain heatsink

/2W

/1%

/1%

/1%

/1%

C138220pF

C138220pF

D1161N4148

D1161N4148

C151100nFC151100nF

R139

36K

R139

36K

R195

100

R195

100

P102B5PIN2.54-C

P102B5PIN2.54-C

12345

R1720.22

R1720.22

R194

10

R194

10

+

C10

710

uF

+

C10

710

uF

D122N.I.

D122N.I.

R18622K

R18622K

R1G3

1K

R1G3

1KR1E4100

R1E4100

R191

100

R191

100

C11247pF

C11247pF

R199

220

R199

220

Q1442SC5949

Q1442SC5949

R107100

R107100

Q1112SA970

Q1112SA970

R12082

R12082

C12222pF

C12222pF

C10

2

100n

FC10

2

100n

F

R103

549

R103

549

+

C15

7

47uF

+

C15

7

47uF

R11624K

R11624K

R1730.22

R1730.22

Q136KSC2690A

Q136KSC2690A

R1352.2KR1352.2K

D117

1N4148

D117

1N4148

R1541.2KR1541.2K

R162

33

R162

33

R11239K

R11239K

D103

1N4148

D103

1N4148

+C130

47uF

+C130

47uF

R1A6100KR1A6100K

C155100nFC155100nF

C12

3

22pFC

123

22pF

+C14310uF

+C14310uF

D1141N4148

D1141N4148

D130

1N4148

D130

1N4148

R18347KR18347K

R1A124.3K

R1A124.3K

Q1052SA1015

Q1052SA1015

D127

1N4148

D127

1N4148

Q133KSC2690A

Q133KSC2690A

R160

100

R160

100

R1691R169

1

R11482

R11482

C135100nFC135100nF

CW

RV10310K

CW

RV10310K 13

2

R1322.2KR1322.2K

Q1412SA2121Q141

2SA2121

C127100nFC127

100nF

R1F6

4.7meg

R1F6

4.7meg

R1413.9K

R1413.9K

Q1482SC2240

Q1482SC2240

R12910

R12910

R11939K

R11939K

D1071N4148

D1071N4148

R1E21megR1E21meg

R159

1K

R159

1K

R128

10

R128

10

R12710

R12710

C134

470pF

C134

470pF

Q1192SA1013

Q1192SA1013

C124

430pF

C124

430pF

P103B

5PIN3.96-C

P103B

5PIN3.96-C

12

45

3

R193

100

R193

100

Q1022SA970

Q1022SA970

R1G51megR1G51meg

Q1042SC2878

Q1042SC2878

+C1414.7uF

+C1414.7uF

R15010K

R15010K

G1G1

N.I.

G1G1

N.I.

1

Q1122SC2240

Q1122SC2240

+

-

IC104BTL084CN+

-

IC104BTL084CN5

67

R14810K

R14810K

R1E9

330K

R1E9

330K

+

C10

510

uF

+

C10

510

uF

R1810.22

R1810.22

Q1032SC2240

Q1032SC2240

Q131KSA1220A

Q131KSA1220A

D1151N4148

D1151N4148

Q135KSC2690A

Q135KSC2690A

R122100KR122100K

Q101KSC2690A

Q101KSC2690A

R15110K

R15110K

R1F122K

R1F122K

+

-

IC104ATL084CN

+

-

IC104ATL084CN3

21

411

C14

2

100n

F

C14

2

100n

F

R11715

R11715

Q1162SA970

Q1162SA970

R138

10K

R138

10K

CW

RV102500

CW

RV102500

13

2

Q138KSA1220A

Q138KSA1220A

R196100KR196100K

R188

33K

R188

33K

+C10810uF

+C10810uF

Q149MPSA92

Q149MPSA92

R1F5270K

R1F5270K

Q1212SC1815

Q1212SC1815

R155

4.7

R155

4.7

D105

1N4148

D105

1N4148

R1A8

220

R1A8

220

Q1292SA970Q129

2SA970

Q147MPSA92

Q147MPSA92

R18922K

R18922K

Q1392SA2121

Q1392SA2121

R124100KR124100K

R1F2

10K

R1F2

10K

Q132KSC2690A

Q132KSC2690A

C11633pF

C11633pF

R176

10K

R176

10KR165

1R165

1

R16722

R16722

+ C12510uF

+ C12510uF

+

-IC104DTL084CN

+

-IC104DTL084CN

12

1314

R10210K

R10210K

+C14610uF

+C14610uF

D124N.I.

D124N.I.

CB101

ST-22 90C L TYPE

CB101

ST-22 90C L TYPE12

+ C14510uF

+ C14510uF

R1443.3

R1443.3

+C103

10uF

+C103

10uF D11118V

D11118V

+C15010uF

+C15010uF

R161

4.7

R161

4.7

Q11

72S

C22

40Q

117

2SC

2240

R1A4

10

R1A4

10

R1332.7KR1332.7K

R1E124.3K

R1E124.3K

+

-

IC104CTL084CN

+

-

IC104CTL084CN 10

98

R158910

R158910

P104A5PIN2.54-C

P104A5PIN2.54-C

1

32

45

C154

100nF

C154

100nF

R1H3

1K

R1H3

1K

R1E5100

R1E5100

+ C11510uF

+ C11510uF

R19

8

1KR19

8

1K

Q150MPSA92

Q150MPSA92

R105

100

R105

100

C110

100nF

C110

100nF

R130

1K

R130

1K

Q1302SC2240

Q1302SC2240

D109

BAV21

D109

BAV21

IC101TL431IC101TL4312

3

1

+C118

10uF

+C118

10uF

D121N.I.

D121N.I.

R1790.22

R1790.22

R111

100

R111

100

Q1152SA970

Q1152SA970

R16418

R16418

D1061N4148

D1061N4148

C139100nFC139100nF

R184470

R184470

Q1202SC2383

Q1202SC2383

R1E3

0.05

R1E3

0.05

C144100nFC144100nF

Q137KSA1220A

Q137KSA1220A

CB1

02ST

-22

80C

L T

YPE

CB1

02ST

-22

80C

L T

YPE

12

Q1062SC2878

Q1062SC2878

+ C10910uF

+ C10910uF

C128100nFC128

100nF

P101B11PIN2.54-C

P101B11PIN2.54-C

1234567891011

R1A2

7.32K

R1A2

7.32K

R1A97.32K

R1A97.32K

R1G2220KR1G2220K

+C111

10uF

+C111

10uF

R10924K

R10924K

R178

10K

R178

10K

R1463.9K

R1463.9K

R113220KR113220K

L103

100uH

L103

100uH

R17710R177

10C113

120pFC113

120pF

+C11410uF

+C11410uF

R1740.22

R1740.22

R18547K

R18547K

IC103TL431IC103TL4312

3

1

R1433.3

R1433.3

D1121N4148

D1121N4148

R1403.9K

R1403.9K

C126100nFC126

100nF

R1573.3KR1573.3K

R1N2

N.I.

R1N2

N.I.

C153N.I.

C153N.I.

R1N1

100

R1N1

100

D113

1N5404

D113

1N5404

D1252.4VD1252.4V

R12382

R12382

R1N81K

R1N81K

D110BAV21D110

BAV21

Q1142SC2240

Q1142SC2240

D1206.8VD1206.8V

R125

200

R125

200

C101100nF

C101100nF

R1F410K

R1F410K

R1872.2KR1872.2K

R192

100

R192

100

Q1452SC5949

Q1452SC5949

R14

5

330R

145

330

R134

N.I.

R134

N.I.

R17018

R17018

L102

10uH

L102

10uH

C148

470nF

C148

470nF

R1E8100KR1E8100K

R131

N.I.

R131

N.I.

R1681R168

1

Q1462SC5949

Q1462SC5949

Q1182SA1015

Q1182SA1015

R1H2

63.4

R1H2

63.4

R11515

R11515

R14910K

R14910K

L101

10uH

L101

10uH

R1F3

10K

R1F3

10K

R142330

R142330

R1361KR136

1K

R110

1K

R110

1K

R1F8

390K

R1F8

390K

C13

1

100n

FC13

1

100n

F

R1820.22

R1820.22

C10433pF

C10433pF

R1800.22

R1800.22

R1531.8meg

R1531.8meg

R1F9110K

R1F9110K

C132220pF

C132220pF

R1F7

470K

R1F7

470K

Q15

12S

C18

15Q

151

2SC

1815

R1750.22

R1750.22

CW

RV104100

CW

RV1041001 3

2

+

C15

8

47uF

+

C15

8

47uF

R156

33

R156

33

Q1432SC5949

Q1432SC5949

C149470nFC149

470nF

R1E7560KR1E7560K

D119BAV21D119

BAV21

R17115

R17115

R1661R166

1

R1A3

100

R1A3

100

Q1132SC2240

Q1132SC2240

R104

1K

R104

1K

Q1402SA2121

Q1402SA2121

R108100

R108100

R1473.9K

R1473.9K

D104

1N4148

D104

1N4148

R12610

R12610

C152100nFC152

100nF

R19010K

R19010K

C121

22pF

C121

22pF

+C14710uF

+C14710uF

+

C11

910

uF

+

C11

910

uF

IC102TL431IC102TL4312

3

1

Q1082SA970

Q1082SA970

R118220KR118220K

R1H110K

R1H110K

D118

BAV21

D118

BAV21

D123N.I.

D123N.I.

Q152KSC2690A

Q152KSC2690A

D102

1N4148

D102

1N4148

R12182

R12182

R16315

R16315

D129

1N4148

D129

1N4148

R1G41megR1G41meg

R1A5100KR1A5100K

R1371.5K

R1371.5K

R10624K

R10624K

R101

475

R101

475

+C129

47uF

+C129

47uF

R1N71K

R1N71K

R1E69.1K

R1E69.1K

Q1422SA2121

Q1422SA2121

R1G1100KR1G1100K

Q109KSA1220A

Q109KSA1220A

D128

1N4148

D128

1N4148

D108

1N4148

D108

1N4148

+C12010uF

+C12010uF

D101

1N4148

D101

1N4148

R197100KR197100K

Q1222SA970

Q1222SA970

Q1072SC2240

Q1072SC2240

C136

470pF

C136

470pF

D126

1N4148

D126

1N4148

C156

N.I.

C156

N.I.

R152845

R152845

- 9 -

SCHEMATICS DIAGRAM POWER AMP SECTION

ISC TPOffset TP

TP1 TP2

AGND TP

Page 10: NAD C375BEE service manual

TUNER

AUX

DISCCD

TAP

E2

MU

TE

TAP

E1

CD

TUN

ER

VID

EO

AU

X

DIS

C

IPO

D

VIDEOIPOD

TAPE2

TAPE1

R1OUT

DGND

T1OUT

T1OUTR1OUT

L OUTR OUT

L INR IN

-26V+26V

+12VD

+12VD

+5VD

+12VD

-26V+26V

SP A

MUTE

SP BPROTSCLED

IR IN

BRIDGE

IR OUT

MM/MC

EXTRA

PHONO L PHONO R

PHONO EN

T1OUT

R1OUT

/1KV

/1KV

/1KV

/1KV

/1KV

/1KV

/1KV

/1KV

/1KV/1KV

/1KV

/1KV

MP R INLEFT

CD INLEFT

TUNER INLEFT

DISC/PHOIN LEFT

AUX INLEFT

TAPE2 INLEFT

TAPE2 OUTLEFT

TAPE1 INLEFT

TAPE1 OUTLEFT

MP F IN

TO DISPLAY BOARD P701B

FRO

M D

ISPL

AY

BO

AR

D P

702A

All Polyester capacitors are 63V 5% unless noted.All Elec. capacitors are 50V 20% unless noted.All Resistor are 1/6W 5% RJ13 unless noted.

TAPE2 OUTRIGHT

TAPE1 INRIGHT

TAPE1 OUTRIGHT

/1KV

MP R INRIGHT

/1KV

/1KV

/1KV

/1KV

CD INRIGHT

/1KV

/1KV

TUNER INRIGHT

/1KV

/1KV

DISC/PHOIN RIGHT

AUX INRIGHT

TAPE2 INRIGHT

PREOUT1/2 RIGHT

PREOUT1/2 LEFT

FRO

M R

S232

BO

AR

D P

S01A

/1KV

FRO

M T

ON

EB

OA

RD

P30

1A

MAIN INRIGHT

MAIN INLEFT

BRIDGESTEREO POSITION

TO L

/R P

OW

ERA

MP

BO

AR

D P

102B

/2W

/1%

/1%

R247100KR247100K

RL206A

JRC-27F/012/S

RL206A

JRC-27F/012/S

34

5

RCA203FAV6-8.4-13RCA203FAV6-8.4-13

8

9

R233

1meg

R233

1meg

RL209CJRC-27F/012/S

RL209CJRC-27F/012/S

12

+

C22410uF+

C22410uF

RL203CJRC-27F/012/S

RL203CJRC-27F/012/S

12

C225220pF

C225220pF

C209100pF

C209100pF

C205100pF

C205100pF

RCA204CAV6-8.4-13RCA204CAV6-8.4-13

4

6

CW

RV201A1KA

CW

RV201A1KA

31

2

R220

220

R220

220

D209

1N4148

D209

1N4148

P20

3A8P

IN2.

54-A

200B

P20

3A8P

IN2.

54-A

200B2

34

1

5678

R226

1meg

R226

1meg

R202

220

R202

220

RCA203BAV6-8.4-13RCA203BAV6-8.4-13

2

3

R225

1meg

R225

1meg

C201100pF

C201100pFR221

1meg

R221

1meg

R240

1meg

R240

1meg

R227

1meg

R227

1meg

RL208CJRC-27F/012/S

RL208CJRC-27F/012/S

12

RCA203DAV6-8.4-13RCA203DAV6-8.4-13

5

6

C203100pF

C203100pF

C216100pF

C216100pF

R248100KR248100K

RL208A

JRC-27F/012/S

RL208A

JRC-27F/012/S

34

5

D202

1N4148

D202

1N4148

RCA203AAV6-8.4-13RCA203AAV6-8.4-13

1

3

R206

220

R206

220

R222

1meg

R222

1meg

RCA202AAV6-8.4-13RCA202A

AV6-8.4-131

3

RL210BJRC-27F/012/S

RL210BJRC-27F/012/S

67

8

R239

1meg

R239

1meg

RL208B

JRC-27F/012/S

RL208B

JRC-27F/012/S

67

8

C210100pF

C210100pF

S202BSK-22F03-G7

S202BSK-22F03-G7

4

5

6

R223

1meg

R223

1meg

D201

1N4148

D201

1N4148

RCA202BAV6-8.4-13RCA202BAV6-8.4-13

2

3

RL204B

JRC-27F/012/S

RL204B

JRC-27F/012/S

67

8

R201

220

R201

220

D208

1N4148

D208

1N4148

R230

1meg

R230

1meg

RL207CJRC-27F/012/S

RL207CJRC-27F/012/S

12

C219100pF

C219100pF

C215100pF

C215100pF

R204

220

R204

220

R244 68R244 68

RL204A

JRC-27F/012/S

RL204A

JRC-27F/012/S

34

5

RL209A

JRC-27F/012/S

RL209A

JRC-27F/012/S

34

5

RCA204DAV6-8.4-13RCA204D

AV6-8.4-13

5

6

RCA203CAV6-8.4-13RCA203C

AV6-8.4-134

6

RL201CJRC-27F/012/S

RL201CJRC-27F/012/S

12

P205B

CON2X10 MALE

P205B

CON2X10 MALE

1

53

6

24

7 89 10

11 1213 1415 1617 1819 20

RCA201CAV6-8.4-13RCA201CAV6-8.4-13

4

6 R224

1meg

R224

1meg

C226220pF

C226220pF

R229

1meg

R229

1meg

RL209BJRC-27F/012/S

RL209BJRC-27F/012/S

67

8

RL202B

JRC-27F/012/S

RL202B

JRC-27F/012/S

67

8

R208

220

R208

220

R200

2.2K

R200

2.2K

C208100pF

C208100pF

C206100pF

C206100pF

RCA202CAV6-8.4-13RCA202C

AV6-8.4-134

6

RL204CJRC-27F/012/S

RL204CJRC-27F/012/S

12

D205

1N4148

D205

1N4148

RL202A

JRC-27F/012/S

RL202A

JRC-27F/012/S

34

5

R238

1meg

R238

1meg

R219

220

R219

220

R237

1meg

R237

1meg

C217100pF

C217100pF

R236

1meg

R236

1meg

R209

220

R209

220

D204

1N4148

D204

1N4148

R243 68R243 68

R234

1meg

R234

1meg

R210

220

R210

220

C211100pF

C211100pF

+

-

+

-

L

R

Vcc Vss

GNDL GNDR

M201HS OPAMP STEREO

+

-

+

-

L

R

Vcc Vss

GNDL GNDR

M201HS OPAMP STEREO

9

87

106

15

2

34

+C22310uF

+C22310uF

CW

RV201B1KA

CW

RV201B1KA

64

5

R217

220

R217

220

D206

1N4148

D206

1N4148

R211

220

R211

220

C207100pF

C207100pF

C212100pF

C212100pFR231

1meg

R231

1meg

RCA203EAV6-8.4-13RCA203EAV6-8.4-13

7

9

RL210CJRC-27F/012/S

RL210CJRC-27F/012/S

12

RCA201FAV6-8.4-13RCA201F

AV6-8.4-138

9

RCA204EAV6-8.4-13RCA204E

AV6-8.4-13

7

9

D207

1N4148

D207

1N4148

RCA201AAV6-8.4-13RCA201A

AV6-8.4-131

3

D203

1N4148

D203

1N4148

C204100pF

C204100pF

R207

220

R207

220

RCA201EAV6-8.4-13RCA201E

AV6-8.4-137

9

RL201B

JRC-27F/012/S

RL201B

JRC-27F/012/S

67

8 R245100KR245100K

R203

220

R203

220

C202100pF

C202100pF

RCA202FAV6-8.4-13RCA202FAV6-8.4-13

8

9

R213

220

R213

220

RL202CJRC-27F/012/S

RL202CJRC-27F/012/S

12

RCA202DAV6-8.4-13RCA202DAV6-8.4-13

5

6

RL201A

JRC-27F/012/S

RL201A

JRC-27F/012/S

34

5

R214

220

R214

220

RL205CJRC-27F/012/S

RL205CJRC-27F/012/S

12

RL207AJRC-27F/012/S

RL207AJRC-27F/012/S

34

5

R215

220

R215

220

C218100pF

C218100pF

R235

1meg

R235

1meg

RL205B

JRC-27F/012/S

RL205B

JRC-27F/012/S

67

8

C221

100nF

C221

100nF

RCA201DAV6-8.4-13RCA201DAV6-8.4-13

5

6

R212

220

R212

220

RL207BJRC-27F/012/S

RL207BJRC-27F/012/S

67

8C213

100pFC213

100pF

P201B

5PIN2.54-C

P201B

5PIN2.54-C

12345

R218

220

R218

220

RCA204FAV6-8.4-13RCA204F

AV6-8.4-13

8

9

C222100nFC222100nF

RL203B

JRC-27F/012/S

RL203B

JRC-27F/012/S

67

8

RL205A

JRC-27F/012/S

RL205A

JRC-27F/012/S

34

5

R228

1meg

R228

1meg

RL206BJRC-27F/012/S

RL206BJRC-27F/012/S

67

8

R216

220

R216

220

C220100pF

C220100pF

R241105K

R241105K

P20

4B3P

IN2.

54-C

P20

4B3P

IN2.

54-C1

23

RL206CJRC-27F/012/S

RL206CJRC-27F/012/S

12

RL203A

JRC-27F/012/S

RL203A

JRC-27F/012/S

34

5

RCA201BAV6-8.4-13RCA201BAV6-8.4-13

2

3

P20

2B11

PIN

2.54

-CP

202B

11P

IN2.

54-C

123456789

1011

R205

220

R205

220

RCA204BAV6-8.4-13RCA204B

AV6-8.4-13

2

3

RL210A

JRC-27F/012/S

RL210A

JRC-27F/012/S

34

5

RCA202EAV6-8.4-13RCA202E

AV6-8.4-137

9 R232

1meg

R232

1meg

RCA204AAV6-8.4-13RCA204AAV6-8.4-13

1

3

C214100pF

C214100pF

R242105K

R242105K

R246100KR246100K

- 10 -

SCHEMATICS DIAGRAM MAIN BOARD PREAMP & INPUT SELECT

01-37506-10

Page 11: NAD C375BEE service manual

VCC

ISCBR L

SCN/MUTEPROTECT L

SCP

ISC

RELAY

SCN/MUTEPROTECT R

SCP

L O/P

R O/P

SP B

SP A

VSS

BR R

+26V

-80V

+80V

+15V

+80V-80V

+15V-15V

+80V-80V

+15V-15V

VCC

VSS

-15V

-26V

-26V

+36V

+26V

+36V

+36V

+12VD

+26V

+36V

+5VD

+26V

+5VD

+18V

+18V

-26V

SCLED

MUTE

IR OUT

SP B

SP A

BRIDGE

PROT

MM/MC

PHONO LPHONO R

PHONO EN

EXTRA

IR IN

/100V/100V

/250

V

/100V/100V

/250

V

/100V

/100V

FRO

M M

AIN

TR

AN

SFO

RM

ER

/250

V

/250

V

FRO

M M

AIN

TR

AN

SFO

RM

ER

/16V

/16V

TO L

EFT

POW

ERA

MP

TO R

IGH

T PO

WER

AM

P

/1%

/1%

/1%

/1%

/1%

/1%

/1/2W

/1/2W

SOFT CLIPPING

/100V

BRIDGE

TRIGGER OUT

/1/4W

/16V

/1/2W

/2W

IR IN

STEREO POSITIONNORMAL POSITION

TO P

HO

NO

/AC

CES

SOR

Y M

OD

ULE

TO H

EAD

PHO

NE

BO

AR

D

/2W

/160

V/1

60V

/250

V/2

50V

FOR BR201&TH201 FOR BR202&TH202

FOR IC201&IC202 FOR IC203&IC204

/2W

/2W

/1W

/1W

/1%

/1%

/1%

/1%

/63V

/63V

IR OUT

BO

TH P

213B

&P

214B

+5V

D C

urre

nt 0

.1A

Max

.B

OTH

P21

3B&

P21

4B +

/-26V

Cur

rent

0.1

A M

ax.

FOR Q214

/1%

/1%

/1%

/1%

/1%/1%

SPEA

KER

ASP

EAK

ER B

FOR Q206&Q216

FROM RS232 BOARD

All Polyester capacitors are 63V 5% unless noted.All Elec. capacitors are 50V 20% unless noted.All Resistor are 1/6W 5% RJ13 unless noted.

+C27210uF

+C27210uF

R27522K

R27522K

R2594.7K

R2594.7K

R2823.3R282

3.3

+

C241

2200

uF

+

C241

2200

uF

D223

1N4007

D223

1N4007

C27910uFC27910uF

R268

24.9K

R268

24.9K

C265N.I.

C265N.I.

IC203NJM317F

IC203NJM317F

O 2I3

AD

J1

RL215A

JRC-27F/036/S

RL215A

JRC-27F/036/S

34

5

Q214KSC2690

Q214KSC2690

R2711KR2711K

R2A7330

R2A7330

C240

10nFC2

40

10nF

R274150KR274150K

Q2062SC4793

Q2062SC4793

RL214A

JQX-115F/036/1HS1

RL214A

JQX-115F/036/1HS13

4

Q2132SC1815

Q2132SC1815

C26410uFC26410uF

R26556K

R26556K

R2691KR269

1K

C253100nFC253100nF

R261240R261

240

R294

820

R294

820

G2G1

Ground Solder Tap

G2G1

Ground Solder Tap

1

RL212B

JQX-115F/036/1HS1

RL212B

JQX-115F/036/1HS1

12

C257

100n

FC257

100n

F

R27682K

R27682K

PAD5

Solder Pad

PAD5

Solder Pad

D231

1N4148

D231

1N4148

IC206

CD74HC86E

IC206

CD74HC86E

3B10

4B134A12

4Y11

3Y8 2Y 6

GND 7

2B 5

1A 1

1B 21Y 3

2A 4

3A9

VCC14

L2011uHL2011uH

PAD4

Solder Pad

PAD4

Solder Pad

C239

10nFC2

39

10nF

R2E7

10K

R2E7

10K

+C27510uF

+C27510uF

R2971K

R2971K

D214

1N4148

D214

1N4148

L2021uHL2021uH

Q2082SA1015

Q2082SA1015

D21513V

D21513V

RL215B

JRC-27F/036/S

RL215B

JRC-27F/036/S

67

8

PAD3

Solder Pad

PAD3

Solder Pad

R250

22K

R250

22K

R2541K

R2541K

R279

100

R279

100

+C24710uF

+C24710uF

R256

1K

R256

1K

HS202

70-004003-1

HS202

70-004003-1

C254100nFC254100nF

HS203

70-004003-1

HS203

70-004003-1

PAD2

Solder Pad

PAD2

Solder Pad

+C259

1uF

+C259

1uF

D2251N4007

D2251N4007

IC201NJM317F

IC201NJM317F

O 2I3

AD

J1

R2584.7K

R2584.7K

R264N.I.

R264N.I.

J201PY301-030-100-RS

J201PY301-030-100-RS

D2271N4007

D2271N4007

R28710

R28710

Q2152SC1815

Q2152SC1815

~

~+-

BR201KBU8D ~

~+-

BR201KBU8D

+C230

10uF

+C230

10uF

R2A1

1K

R2A1

1K

S202A

SK-22F03-G7

S202A

SK-22F03-G7

1

2

3

R2A4

10K

R2A4

10K

P206B

5PIN3.96-C

P206B

5PIN3.96-C

12

45

3

C232100nF

C232100nF

+C229

10uF

+C229

10uF

P214BFLEX DIP12

P214BFLEX DIP12

123456789

101112

R2E2

240

R2E2

240

+C29110uF

+C29110uF

R2A2

1K

R2A2

1K

J202A

SCJ351P00XS0B00

J202A

SCJ351P00XS0B00145

R2531K

R2531K

PAD1

Solder Pad

PAD1

Solder Pad

+

C242

2200

uF

+

C242

2200

uF

D211

1N4148

D211

1N4148

+C271

47uF

+C271

47uF

C27310nFC27310nF

P212A

11PIN2.54-A130B

P212A

11PIN2.54-A130B

234

1

56789

1011

R2E815K

R2E815K

Q2092SC1815

Q2092SC1815

R2A510

R2A510

P209A

5PIN3.96-AxxB

P209A

5PIN3.96-AxxB

12345

D220

1N4148

D220

1N4148

Q204MPSA42

Q204MPSA42

RL212A

JQX-115F/036/1HS1

RL212A

JQX-115F/036/1HS13

4

R29610K

R29610K

TH202BT151-500R

TH202BT151-500R

3

1 2

R295

10K

R295

10K

C268N.I.

C268N.I.

RL211B

JQX-115F/036/1HS1

RL211B

JQX-115F/036/1HS1

12

IC204LM337TIC204

LM337T

O 3I2 AD

J1

+C26310uF

+C26310uF

+C24810uF

+C24810uF

+

C2814.7uF

+

C2814.7uF

C266N.I.

C266N.I.

RL213B

JQX-115F/036/1HS1

RL213B

JQX-115F/036/1HS1

12

C249100nFC249100nF

C231100nF

C231100nF

C262220nFC262220nF

D2241N4007

D2241N4007

R298

10K

R298

10K

P210A

5PIN3.96-AxxB

P210A

5PIN3.96-AxxB

12345

+

C255

1000

uF

+

C255

1000

uF

D213

24V

D213

24V

+C277

1000uF

+C277

1000uF

+C24510uF

+C24510uF

P208B

3PIN2.54-C

P208B

3PIN2.54-C

123

D218

1N4148

D218

1N4148R289

4.7K

R289

4.7K

S201

SK-22F03-G7

S201

SK-22F03-G7

5

6

4 1

2

3

R267

24.9K

R267

24.9K

J202B

SCJ351P00XS0B00

J202B

SCJ351P00XS0B0021

25

R2701KR270

1K

R288

4.99K

R288

4.99K

P213BFLEX DIP12

P213BFLEX DIP12

123456789

101112

D228

1N4148

D228

1N4148

R291

4.7K

R291

4.7K

F203

MF-R075/90U-0-99

F203

MF-R075/90U-0-99

HS206HEATSINK

HS206HEATSINK

+C27410uF

+C27410uF

Q2112SC1815

Q2112SC1815

R2E3

2.67

K

R2E3

2.67

K

D22215VD22215V

RL213A

JQX-115F/036/1HS1

RL213A

JQX-115F/036/1HS13

4

R2E6

2.2K

R2E6

2.2K

R284270

R284270

+C24610uF

+C24610uF

D2301N4148

D2301N4148

R277

150K

R277

150K

F201

MF-R075/90U-0-99

F201

MF-R075/90U-0-99

P207B

5PIN3.96-C

P207B

5PIN3.96-C

12

45

3

P211A

11PIN2.54-A130B

P211A

11PIN2.54-A130B

234

1

56789

1011

C276100nFC276100nF

R286

10

R286

10

C228

10nFC2

28

10nF

RL214B

JQX-115F/036/1HS1

RL214B

JQX-115F/036/1HS1

12

R262220KR262220K

Q2052SC1815

Q2052SC1815

R251

22K

R251

22K

R2833.3R283

3.3

C26910nFC26910nF

RL215C

JRC-27F/036/S

RL215C

JRC-27F/036/S

12

D221

1N4148

D221

1N4148

R293

180

R293

180

+C25210uF

+C25210uF

C243100nFC243100nF

R2E5

100

R2E5

100

D2101N4007

D2101N4007

R27833K

R27833K

D2191N4148

D2191N4148

R257

100

R257

100

Q2012SC1815

Q2012SC1815

R285

6.8K

R285

6.8K

HS205

70-004003-1

HS205

70-004003-1

C250100nFC250100nF

+C261

330uF

+C261

330uF

IC205HS1237IC205

HS1237

12 3

4

5

6

7

8

R2521K

R2521K

C227

10nFC2

27

10nF

C244100nFC244100nF

~

~+-

BR204DB104G

~

~+-

BR204DB104G

R249

10K

R249

10K

+C278

1000uF

+C278

1000uF

PAD6

Solder Pad

PAD6

Solder Pad

+C233

22000uF

+C233

22000uF

R2E4

240R2

E4

240

RL211A

JQX-115F/036/1HS1

RL211A

JQX-115F/036/1HS13

4

HS204

70-004003-1

HS204

70-004003-1

R2A647K

R2A647K

Q2122SA1015

Q2122SA1015

TH201BT151-500R

TH201BT151-500R

3

12

~

~+-BR203

DB104G

~

~+-BR203

DB104G

R273

2.2K

R273

2.2K

Q2022SA1015

Q2022SA1015

R255

100

R255

100

+C260

100uF

+C260

100uF

R26656K

R26656K

+

C256

1000

uF

+

C256

1000

uF

R2G1

0

R2G1

0

Q2102SC1815

Q2102SC1815

~

~+-

BR202KBU8D ~

~+-

BR202KBU8D

C27010nFC27010nF

+C234

22000uF

+C234

22000uF

R299

4.7K

R299

4.7K

R2E1

2.67

K

R2E1

2.67

K

Q216IRF5210

Q216IRF5210

IC202LM337TIC202

LM337T

O 3I2 AD

J1

R280

270

R280

270

D2261N4007D226

1N4007

+C25110uF

+C25110uF

HS201

70-004003-1

HS201

70-004003-1

R2A3

33

R2A3

33

Q2072SC1815

Q2072SC1815

C258

100n

FC258

100n

F

C280

N.I.

C280

N.I.

R292

4.7K

R292

4.7K

R2634.7KR2634.7K

F202

MF-R075/90U-0-99

F202

MF-R075/90U-0-99

C290100nFC290100nF

Q203MPSA92

Q203MPSA92

D2161N4148

D2161N4148

R260240

R260240

P215B3PIN2.54-C

P215B3PIN2.54-C

123

R2721KR272

1K

D217

1N4148

D217

1N4148

D212

24V

D212

24V

R281

270

R281

270

C267N.I.

C267N.I.

- 11-

SCHEMATICS DIAGRAM PSU (WITHOUT MDC +8.8V SUPPORT)

Page 12: NAD C375BEE service manual

VOL-VOL+

TONE

BRIDGE

IR INIR OUT

+26V -26V

+5.6V

+5.6V

+26V

+26V

-26V

/1%

/16V

/1%

/1%

/1%

/5%

/5%

/5%

/5%

/1%

/1%

TONE DEFEAT RELAY

All Polyester capacitors are 63V 5% unless noted.All Elec. capacitors are 50V 20% unless noted.All Resistor are 1/6W 5% RJ13 unless noted.

BA

LAN

CE

VOLU

ME

CO

NTR

OL

/1KV

/1KV

BA

LAN

CE

/1%

/16V

/1%

/1%

/1%

/5%

/5%

/5%

/5%

/1%

/1%

VOLU

ME

CO

NTR

OL

TONE DEFEAT RELAY

/25V

/25V

FRO

M M

AIN

BO

AR

D P

202B

FRO

M D

ISPL

AY

BO

AR

D P

501A

/1K

V/1

KV

C310220nF

C310220nF

R312180

R312180

R308732

R308732

C326100nFC326100nF

R325

2.2K

R325

2.2K

CW

RV30510K

CW

RV30510K

1 3

2P301A

11PIN2.54-A80B

P301A

11PIN2.54-A80B

234

1

567891011

R3242.2KR3242.2K

P302B

10PIN2.54-C

P302B

10PIN2.54-C

123456789

10

CW

RV

304A

RK

1631

2A10

D 2

0KM

NX

2

CW

RV

304A

RK

1631

2A10

D 2

0KM

NX

2

31

2

C314220pF

C314220pF

RL301A

JRC-27F/012/S

RL301A

JRC-27F/012/S

34

5

R311180

R311180

CW

RV30610K

CW

RV30610K

1 3

2

CW

RV

303B

RK

1681

2MG

A10

(20K

BX

2)

CW

RV

303B

RK

1681

2MG

A10

(20K

BX

2)

73

28

C313220pF

C313220pF

R30175K

R30175K

CW

RV

301A

RK

1631

21A

2CA

10K

AX

2

CW

RV

301A

RK

1631

21A

2CA

10K

AX

23

1

2

C307100nF

C307100nF

R30347

R30347

R315

N.I.

R315

N.I.

R313

51K

R313

51K

+

-

+

-

L

R

Vcc Vss

GNDL GNDR

M301HS OPAMP STEREO

+

-

+

-

L

R

Vcc Vss

GNDL GNDR

M301HS OPAMP STEREO

9

87

106

15

2

34

RL301B

JRC-27F/012/S

RL301B

JRC-27F/012/S

67

8

A -+

RV303C

RK16812MGA10(20KBX2)

A -+

RV303C

RK16812MGA10(20KBX2)

+ -

R30447

R30447

R307732

R307732

C30522nF

C30522nF

C32

9

470p

F

C32

9

470p

F

C317

100nF

C317

100nF

R30

5

3.3KR

305

3.3K

CW

RV

302A

RK

1631

21A

2CA

10K

AX

2

CW

RV

302A

RK

1631

21A

2CA

10K

AX

2

31

2

R33347

R33347

Q3012SA1015

Q3012SA1015

R33447

R33447

C309220nF

C309220nF

R3272.2KR3272.2KC327

4.7uF

C327

4.7uF

+C320

220uF

+C320

220uF

CW

RV307100

CW

RV307100

13

2

R3282.2KR3282.2K

R314

51K

R314

51K

+C301

100uF

+C301

100uF

R326

2.2K

R326

2.2K

+C302

100uF

+C302

100uF

+C32510uF

+C32510uF

C3111uF

C3111uF

C321

100nF

C321

100nF

C304

100nF

C304

100nF

R320390R320

390

Q3042SC1815

Q3042SC1815

+

C315

N.I.

+

C315

N.I.

R3232.2KR3232.2K

Q3022SC1815

Q3022SC1815

CW

RV

303A

RK

1681

2MG

A10

(20K

BX

2)

CW

RV

303A

RK

1681

2MG

A10

(20K

BX

2)

61

45

C308100nF

C308100nF

C3121uF

C3121uF

C322

100nF

C322

100nF

R309

390

R309

390

+C319

220uF

+C319

220uF

R319390R319

390

D3011N4148

D3011N4148

+

C316

N.I.+

C316

N.I.

CW

RV

304B

RK

1631

2A10

D 2

0KM

NX

2

CW

RV

304B

RK

1631

2A10

D 2

0KM

NX

2

64

5

CW

RV308100

CW

RV308100

13

2

C303

100nF

C303

100nF

R30275K

R30275K

R3214.7KR3214.7K

C33

0

470p

F

C33

0

470p

F

C30622nF

C30622nF

CW

RV

302B

RK

1631

21A

2CA

10K

AX

2

CW

RV

302B

RK

1631

21A

2CA

10K

AX

2

64

5

R310

390

R310

390

R3224.7KR3224.7K

R316

N.I.

R316

N.I.

CW

RV

301B

RK

1631

21A

2CA

10K

AX

2

CW

RV

301B

RK

1631

21A

2CA

10K

AX

26

4

5

R3171.5K

R3171.5K

+C32310uF

+C32310uF

RL301C

JRC-27F/005/S

RL301C

JRC-27F/005/S

12

Q3032SA1015

Q3032SA1015

C318

100nF

C318

100nF

+ C32410uF+ C32410uF

R30

6

3.3KR30

6

3.3K

R3181.5K

R3181.5K

R32947

R32947

- 12 -

SCHEMATICS DIAGRAM TONE CONTROL

01-37506-20

Page 13: NAD C375BEE service manual

THERMAL PROTSTBYDGND

+5.6V

+12VAGND

+5.6VD

+5.6VD

/1W

All Polyester capacitors are 63V 5% unless noted.All Elec. capacitors are 50V 20% unless noted.All Resistor are 1/6W 5% RJ13 unless noted.All Zener diode are 1/2W unless noted.

W403 ONLY FOR C VERSIONW401&W402 ONLY FOR AH VERSION

NEUTRAL

LIVE

TO DISPLAY BOARD

FROM MAIN TRANSFORMER

TO MAIN TRANSFORMER

/X T

ype

/400V

Ass

embl

ed in

the

Rea

r Pa

nel

/16V/10V

/Y Type

/X Type

/16V

FOR IC402

Or HF115F 005-1HS3A TV-5

Only for 120V Version

D4081N4148

D4081N4148

D4091N4148

D4091N4148

F401

T1AL/250V

F401

T1AL/250V

R402100

R402100

PC401

PC817A

PC401

PC817A

1

2

4

3

D402

1N5822

D402

1N5822

D401FR107D401

FR107

P402B

6PIN2.54-C

P402B

6PIN2.54-C

123456

R403

510

R403

510

D404

1N5819

D404

1N5819

+

C40

8

220u

F

+

C40

8

220u

F

TR40

1C

om In

duct

orTR

401

Com

Indu

ctor

13

25

D4051N4007

D4051N4007

C409100nFC409100nF

S1

RF-

1003

-BB

2, 1

0A 2

50V

, TV

-5

S1

RF-

1003

-BB

2, 1

0A 2

50V

, TV

-51

2

U2

ACOUTLET

U2

ACOUTLET

1

2

J401KY250J401

KY250

1 2

U1AC INLET

U1AC INLET

1 2

D4034.7VD4034.7V

~

~+-

BR401DB105

~

~+-

BR401DB105

J402KY187J402

KY187

1 2

C40

1

100n

FC40

1

100n

F

D4071N4148

D4071N4148

C40310nF

C40310nF

IC402LM7805CT

IC402LM7805CT

O 3I1

G2

HS401HEATSINK

HS401HEATSINK

W40

1

15m

m J

UM

PE

R

W40

1

15m

m J

UM

PE

R1

2

C405

1nF

C405

1nF

TR402

EE16

TR402

EE16

1

6

5

7

9

10

L40110uHL40110uH

D4061N4148

D4061N4148

IC401

TNY274PN

IC401

TNY274PN

S6BP/M 2

D 4S5

S8 S7EN/UV 1

C407100nFC407100nF

W40

2

15m

m J

UM

PE

R

W40

2

15m

m J

UM

PE

R1

2

W40

3

15m

m J

UM

PE

R

W40

3

15m

m J

UM

PE

R1

2

RL401DH1U5VDC TV-8

RL401DH1U5VDC TV-8

34

12

C404 100nFC404 100nF

+C406

220uF

+C406

220uF

R40168K

R40168K

R404

150

R404

150

+C410

220uF

+C410

220uF

+C402

10uF

+C402

10uF

P404B

4PIN7.92-C

P404B

4PIN7.92-C

1

5

7

3

P403B

2PIN3.96-C

P403B

2PIN3.96-C

12

- 13 -

SCHEMATICS DIAGRAM STANDBY

Page 14: NAD C375BEE service manual

MP

R

P0.6

AUX

CDP0.2

P2.1

TAPE

2

P2.0

TAPE

1

P0.5

TUNE

R

P2.2

DISC

P0.3

P0.4

TXD

+5VDDGNDT1OUTR1IN

RXD

SCLSDA

RST

VOL-VOL+P1.2P1.3

SCLSDARSTRXDTXD

IR OUTIR IN

P3.6P3.7

IR OUTBRIDGE

VOL-

IR IN

P2.0P2.1P2.2

/EAP0.7P0.6P0.5P0.4P0.3P0.2P0.1P0.0+5VD

P2.3

P2.7P2.6

P2.7P2.6P0.7

P2.4P2.5

VOL+

EXTRA

R1IN

CDMP F

TAPE2

TAPE1DISC

MP R

PHONO ENMM/MCT1OUT

MUTE+5VD

SP ASP BPROTECTSCLED

TUNER

TONE

P2.3P2.4P2.5

+5VD

IR OUT

STBYTP

TPPROT

PHONO ENP3.5

BRID

GE

SCLE

D

P3.7

SCL

SDA

/EA

P1.3

IR IN

AUX+5VD

+5VDSCLP0.1P3.5

AMBER

BLUE

RED

AMBERBLUEREDEXTRAPHONOFLICKERSP BSP A

P1.2

P1.3

PHO

NO

P2.7

P2.0P2.1P2.2P2.3P2.4P2.5P2.6

P0.7

P0.0P0.1P0.2P0.3P0.4P0.5P0.6

STBY

TONE

P0.5

PROTECT PROT

P3.7

MP

F

P3.6

SP A

SP B

MUT

E

MM/MC

+5.6VD

FLICKER

P0.0

+12V

+5VD

+5.6VD +5VD

+5.6VD

+5VD

+5.6VD

+5VD

+5VD

+5VD

+12V

+8V

+26V

+8V

+5VD

+12V

+12V +8V

SP A SP B MP TUNER AUXCD DISC

All Polyester capacitors are 63V 5% unless noted.All Elec. capacitors are 50V 20% unless noted.All Resistor are 1/6W 5% RJ13 unless noted.

TO MAIN BOARD P205B

TO M

AIN

BO

AR

D P

201B

TAPE1TAPE2 TONE

TO T

ON

E B

OA

RD

P30

2B

POWER

TO S

TAN

DB

Y B

OA

RD

P40

2B

IPO

D IN

PUT

/1KV /1KV

/16V

Optional Reglator

/ 10V

Q5302SA1015

Q5302SA1015

D514

BL-B

B52V

1

D514

BL-B

B52V

1

Q54

62S

C181

5Q

546

2SC1

815

IC506N.I.

IC506N.I.

O 3I1

G2

D507

BL-B

B52V

1

D507

BL-B

B52V

1

C511100nFC511100nF

Q54

32S

C181

5Q

543

2SC1

815

P503A

CON2X10 MALE

P503A

CON2X10 MALE

1

53

6

24

7 89 10

11 1213 1415 1617 1819 20

Q5312SA1015

Q5312SA1015

R528

10K

R528

10K

+C52010uF

+C52010uF

R568

10K

R568

10K

R5351K

R5351K

C509100nFC509100nF

R51456

R51456

R522

130

R522

130

R52310KR52310K

R51856

R51856

D511

BL-B

B52V

1

D511

BL-B

B52V

1

R5411K

R5411K

D521

N.I.

D521

N.I.

R501

10K

R501

10K

R511

1Kx8

R511

1Kx8

1 23456789

D515

BL-B

B52V

1

D515

BL-B

B52V

1

R547

1K

R547

1K

R571

4.7K

R571

4.7K

Q52

2DT

A114

ESA

Q52

2DT

A114

ESA

R53156

R53156

C510100nFC510100nF

D5361N4148

D5361N4148

P502A

6PIN2.54-A60B

P502A

6PIN2.54-A60B

234

1

56

S502IT-1102D-1160

S502IT-1102D-1160

12

R53256

R53256

R504

10K

R504

10K

R546

4.7K

R546

4.7K

R52710KR52710K

R53056

R53056

R5451K

R5451K

D506

BL-B

B52V

1

D506

BL-B

B52V

1

D537

N.I.

D537

N.I.

Q5322SA1015

Q5322SA1015

+C516N.I.

+C516N.I.

Q54

52S

C181

5Q

545

2SC1

815

X501

11.0592MHZ

X501

11.0592MHZ

D5441N4148

D5441N4148

D5481N4148

D5481N4148

Q50

52S

A101

5Q

505

2SA1

015

G501

GND-8

G501

GND-8

1

D5331N4148

D5331N4148

D529

N.I.

D529

N.I.

R51210KR51210K

C503 100nFC503 100nF

R5381K

R5381K

R51956

R51956

R5624.7KR5624.7K

D510

BL-B

B52V

1D5

10BL

-BB5

2V1

D516

BL-B

B52V

1

D516

BL-B

B52V

1

+C508

100uF

+C508

100uF

R51656

R51656

C502 100nFC502 100nF

R510

1Kx8

R510

1Kx8

1 23456789

Q50

62S

A101

5Q

506

2SA1

015

S506IT-1102D-1160

S506IT-1102D-1160

12

R5634.7KR5634.7K

R550

4.7K

R550

4.7K

S507IT-1102D-1160

S507IT-1102D-1160

12

D525 N.I.

D525 N.I.

S501IT-1102D-1160

S501IT-1102D-1160

12

R5021K

R5021K

D512BL-BB5B5201-B

D512BL-BB5B5201-B

C501 100nFC501 100nF

R5441K

R5441K

R50510KR50510K

C512100nFC512100nF

Q54

12S

C181

5Q

541

2SC1

815

S509IT-1102D-1160

S509IT-1102D-1160

12

R525100R525100

D5431N4148

D5431N4148

C50522pF

C50522pF

Q54

72S

C181

5Q

547

2SC1

815

Q52

92S

A101

5Q

529

2SA1

015

C50622pF

C50622pF

R5401K

R5401K

R5341K

R5341K

R5361K

R5361K

R53356

R53356

R554

4.7K

R554

4.7K

R51556

R51556

Q5092SA1015

Q5092SA1015

R52956

R52956

S505IT-1102D-1160

S505IT-1102D-1160

12

R549

4.7K

R549

4.7K

R5614.7KR5614.7K

D550

1N4007

D550

1N4007

D505

BL-B

B52V

1

D505

BL-B

B52V

1

Q5332SD667

Q5332SD667

D531

N.I.

D531

N.I.

Q52

82S

A101

5Q

528

2SA1

015

R5524.7KR5524.7K

D5344.7VD5344.7V

R520

130

R520

130

D5351N4148

D5351N4148

R5604.7KR5604.7K

S510IT-1102D-1160

S510IT-1102D-1160

12

D527

N.I.

D527

N.I.

D5451N4148

D5451N4148

D526

N.I.

D526

N.I.

D5461N4148

D5461N4148

R5564.7KR5564.7K

R503

10K

R503

10K

D5391N4148

D5391N4148

D5021N4148

D5021N4148

R506

1K

R506

1K

R567

1K

R567

1K

R5431K

R5431K

+C517

1000uF

+C517

1000uF

D530

N.I.

D530

N.I.

Q54

42S

C181

5Q

544

2SC1

815

Q54

02S

C181

5Q

540

2SC1

815

R521

270

R521

270Q

536

2SC1

815

Q53

62S

C181

5

S508IT-1102D-1160

S508IT-1102D-1160

12

R5692.2KR5692.2K

S503IT-1102D-1160

S503IT-1102D-1160

12

Q53

92S

C181

5Q

539

2SC1

815

R56610

R56610

C513100nFC513100nF

S504IT-1102D-1160

S504IT-1102D-1160

12

Q52

4DT

A114

ESA

Q52

4DT

A114

ESA

+

C519

10uF

+

C519

10uF

R551

0

R551

0

R5594.7KR5594.7K

R51356

R51356

R509

10K

R509

10K

R51756

R51756

Q54

92S

C181

5Q

549

2SC1

815

+C518

10uF

+C518

10uF

Q50

82S

A101

5Q

508

2SA1

015

R5264.7KR5264.7K

D5381N4148

D5381N4148

D504

Three LED

D504

Three LED

2

1

3

4

C504 100nFC504 100nF

D5321N4148

D5321N4148

D520

N.I.

D520

N.I.

D5171N4148

D5171N4148

D5421N4148

D5421N4148

R5574.7KR5574.7K

R5724.7KR5724.7K

+C521

N.I.

+C521

N.I.

Q53

72S

C181

5Q

537

2SC1

815

D523 N.I.

D523 N.I.

D509BL-BB5B5201-B

D509BL-BB5B5201-B

R5704.7KR5704.7K

S511IT-1102D-1160

S511IT-1102D-1160

12

J501

PHONE JACK

J501

PHONE JACK32154

Q54

22S

C181

5Q

542

2SC1

815

C514100nFC514100nF

Q50

32S

A101

5Q

503

2SA1

015

D5471N4148

D5471N4148

D5031N4148

D5031N4148 R542

1KR542

1K

D508

BL-B

B52V

1

D508

BL-B

B52V

1

P504A

5PIN 2.54-760B

P504A

5PIN 2.54-760B

234

1

5

IC504IS1U60LIC504

IS1U60L

3V

2G

1 S

4G

5G

R507

10K

R507

10K

IC503

AT89S52-24PU

IC503

AT89S52-24PU

P1.0/T21P1.1/T2EX2

P1.23

P1.34

P1.45

P1.5/MOSI6P1.6/MISO7

P1.7/SCK8

P3.0/RXD10

P3.1/TXD11 EA/VPP 31

ALE/PROG 30P3.2/INT012

P3.5/T115 P3.4/T014 P3.3/INT113

P3.6/WR16

RST9

P0.0/AD0 39

P0.1/AD1 38

P0.2/AD2 37

P0.3/AD3 36

P0.4/AD4 35P0.5/AD5 34

P0.6/AD6 33

P0.7/AD7 32

PSEN 29

P2.6/A14 27

P2.5/A13 26

P2.4/A12 25P2.3/A11 24

P2.2/A10 23

P2.1/A9 22

P2.7/A15 28

P3.7/RD17

P2.0/A8 21GND20 XTAL119

VCC 40

XTAL218

D522

N.I.

D522

N.I.

Q52

3DT

A114

ESA

Q52

3DT

A114

ESA

Q50

42S

A101

5Q

504

2SA1

015

Q52

5DT

C114

ESA

Q52

5DT

C114

ESA

R5644.7KR5644.7K

Q5342SC1815

Q5342SC1815

Q5022SC1815

Q5022SC1815 R555

4.7K

R555

4.7K

P501A

10PIN2.54-A240B

P501A

10PIN2.54-A240B

234

1

5678910

IC502CAT1021LI-42

IC502CAT1021LI-42

/RST2

SCL 6

Vcc 8NC1

GND4RST 7

SDA 5WP3

Q5102SA1015

Q5102SA1015

R548

1K

R548

1K

D5491N4148

D5491N4148

R5391K

R5391K

C50710nFC50710nF

R5371K

R5371K

C515N.I.

C515N.I.

D519 N.I.

D519 N.I.

D5181N4148

D5181N4148

IC501SP232EEP

IC501SP232EEP

C1+1V+2

C1-3

C2+4

C2-5

V-6T2OUT7

R2IN8

VCC 16

R2OUT 9T2IN 10T1IN 11R1OUT 12R1IN 13T1OUT 14GND 15

R508

10K

R508

10K

IC505

74HC4094

IC505

74HC4094STR1 D2 CLK3 OE15

Q1 4Q2 5Q3 6Q4 7Q5 14Q6 13Q7 12Q8 11QS 9QS 10VDD16

VSS 8

D513

BL-B

B52V

1

D513

BL-B

B52V

1

D528

N.I.

D528

N.I.

Q53

82S

C181

5Q

538

2SC1

815

R5584.7KR5584.7K

D5401N4148

D5401N4148

Q50

72S

A101

5Q

507

2SA1

015

R56510

R56510

D501

1N4007

D501

1N4007

D524

N.I.

D524

N.I.

D5411N4148

D5411N4148

Q5352SC1815

Q5352SC1815

Q54

82S

C181

5Q

548

2SC1

815

Q5512SC1815

Q5512SC1815

Q55

02S

C181

5Q

550

2SC1

815

R5534.7KR5534.7K

R524

N.I.

R524

N.I.

- 14 -

SCHEMATICS DIAGRAM KEYBOARD AND DISPLAY

Page 15: NAD C375BEE service manual

LOU

TLI

N-

LIN

+

RO

UT

RIN

+R

IN-

GN

DR

GN

DL

+26V -26V

All Capacitors are SMD0805 5% unless noted.All Resistor are SMD0805 1/10W 5% unless noted.

/1%

/1%

/1%

/1%

/1%

Line in module C611 is 39pF M201 01-37506-10Line out module C611 is 47pF M301 01-37506-20

Q6042SA1312

Q6042SA1312

R613

18K

R613

18K

C616

N.I.

C616

N.I.

R619

430

R619

430

Q6142SC3324

Q6142SC3324

P601A10PIN2.54 RIGHT ANGLE

P601A10PIN2.54 RIGHT ANGLE

13 245678910

C611

See note

C611

See note

R628100KR628100K

R61810

R61810

R625150KR625150K

R621

487

R621

487

R6091.5KR6091.5K

R6101.5KR6101.5K

Q6072SC3324

Q6072SC3324

Q6032SA1312

Q6032SA1312

Q6122SA1225

Q6122SA1225

R6111K

R6111K

R6121K

R6121K

R604220

R604220

Q6012SK209

Q6012SK209

R61610

R61610

Q6092SC2983

Q6092SC2983

Q6102SC2983

Q6102SC2983

R602

1meg

R602

1meg

Q6022SK209

Q6022SK209

C603

47pF

C603

47pF

C615

N.I.

C615

N.I.

C60222pFC60222pF

R6081K

R6081K

R606

1K

R606

1K

C618

220pF

C618

220pF

R601

1meg

R601

1meg

C6131uFC6131uF

R61710

R61710

C609100nFC609100nF

R603220

R603220

Q6132SC3324

Q6132SC3324

R614

18K

R614

18K

C6051nFC6051nF

Q6052SC3324

Q6052SC3324

C608100nFC608100nF

R622

487

R622

487

C607100nFC607100nF

C60122pFC60122pF

C6141uF

C6141uF

C6061nF

C6061nF

R620

430

R620

430

Q6082SC3324

Q6082SC3324

C604

47pF

C604

47pF

R627100KR627100K

R6071K

R6071K

Q6062SC3324

Q6062SC3324

R61510

R61510

R623

8.2K

R623

8.2K

C610100nFC610100nF

R605

1K

R605

1K

Q6112SA1225

Q6112SA1225

C617

220pF

C617

220pF

R626150KR626150K

- 15 -

SCHEMATICS DIAGRAM 01-37506-10 & 20

NOTE:

Page 16: NAD C375BEE service manual

TO M

AIN

BO

AR

D P

403B

P702B

3PIN2.54-C

P702B

3PIN2.54-C

123

R701

100

R701

100

J701

DB9 FEMALE

J701

DB9 FEMALE

594837261

P701

3PIN2.54-A100B

P701

3PIN2.54-A100B

23

1

- 16 -

SCHEMATICS DIAGRAM

Page 17: NAD C375BEE service manual

P801A

3PIN2.54-A170B

P801A

3PIN2.54-A170B

23

1J801

PHONE JACK

J801

PHONE JACK

- 17 -

SCHEMATICS DIAGRAM

Page 18: NAD C375BEE service manual

SPEA

KER

ASP

EAK

ER B

P901B

6PIN3.96-C

P901B

6PIN3.96-C

123456

BP901BBIND��G POST

3

4

BP901ABINDING POST

2

1

BP901DBINDING POST

7

8

BP901CBINDING POST

6

5

- 18 -

SCHEMATICS DIAGRAM

Page 19: NAD C375BEE service manual

Q142 Q146

Q101Q109

Q143 Q140Q139 Q141 Q145Q144

Q152

C375PowerAMP VM1.02008-09-23

R138

R106

R132

C375BEE/C275BEE PowerAMP Board VM1.0 Oct. 22. 2008

Q10

5

Q114

R12

5

D117

D115D114D119

D125D118

R1F4

C375BEE/C275BEE AMP BOARD - SOLDER SIDE

R1F7

Q15

1

R1F5

C375BEE/C275BEE AMP BOARD - COMPONENT SIDE

R1E

6

R1E

2Q

149

-15V

VC

CC

134

R1

67C

136 C139

R17

7

R139 D109IC101 Q130

R1E

8

R1F6

TP

1

R1G2

VC

C

C147

RV103

R1F8

ISC

C146

R1E7

Q150

R1E

5

R178

R1

F9

C102

+15V

C101

R1E

3

P103B

D11

3

R1F

3

C149 R1G3

R1G5

C143

R1H3

C148

P10

4A

C152

OU

TT

P2

AG

ND

R1G4 IC104

C151C145 R190

D12

0R

1E9

C153

D11

6

R192

R191

OU

TL1

03F

BA

GN

D

INAG

ND

C154

P102B

D12

8

R121

R1

12

IC102

D10

5

Q117

C127

C155

C129

R10

1

Q10

4

D127R113

C108

Q10

6

C11

2

R105

R1N7

D10

6

R136

Q118R114

Q113

C12

2R

122

Q119

R126

90D

EG

+80V

-80V

PR

OT

90D

EG

P101B

MU

TE

SC

PIS

C

BD

GE

AG

ND

VS

S

R1N

1

AG

ND

O/P

R13

0

R15

2

R1H

2

R19

3

RV102

R160

R144

R151

R148

Q138

R159

R154R

155

R143Q131

R173

Q133

R142

HS101

L102 R162

R158

R1

49R

150

R16

1

Q132

R180

IC103 C128

R174

C130C126R145

D121

D110

D122

R13

7

R13

5

C138Q137

R1

68

R181

R16

9

R163

R14

1

R164

R1E4

R172

R1G1

R188

R1F1R183

R1

F2

C144

R198

D111D112

Q1

48

R18

6R

185

R18

7

R17

6

R18

9R

184

C14

1Q

147

R16

5

R179

C142D126

C158

C131

R153

R16

6

Q135

R1

56L1

01C

135

C157 R157Q136

C132

R171R170

CB102

D12

4

R111

R12

9

Q116

R118C120

R123

D10

8C150Q122C115

D13

0D

129

R1A5

R11

9R

1A3

R1N

8 D10

3

C110

C11

1

R107

R10

3

C11

3

R10

2

Q111

R115

C12

4

RV104

R195

C1

21

Q112

Q120

R11

6C103 C125

R127

R10

4

R12

8

C10

9

R108

C11

4

R11

0

R109

R117 Q115

R124

C12

3

Q121

R120 D1

07R

1A6

G1G1 R1N

2

Q12

9R

133

D10

1

R196 R197

D10

2R

140

Q10

2

C104

R14

7

R14

6R

199

R1A

2

Q103 Q1

08R

1A9

R1A

8

R1A1

R13

1

D123

C105

R175

C10

7

R19

4

R13

4

R1A

4C

116

R182

C156

C119

Q107R1E1

C118

D10

4

CB101

- 19 -

PCB LAYOUT

Page 20: NAD C375BEE service manual

BU

S20

1

P203A

C375BEE MAIN BOARD VM1.0

C232

R26

7

RV201

Q2

06

HS

205

HS

204

HS

203

RL

201

C20

3

BR204

D221R261

D22

6D22

2R2E

5

C277

IR O

UT

D22

3D

225

C278C

276

IR I

N

C2

40P

207B

P202B

AG

ND

R2E6

BR

IDG

E

-26V

+26

VD

227

D22

4R

IN

R2A

1L

INA

GN

D

R O

UT

L O

UT

C23

9

LOW

RA

ILLO

W R

AIL

AG

ND

HI

RA

ILH

I R

AIL

+

~

BR203

~

C255

C257

+

~

+15V

-15V

+80V

90Deg

90Deg

P212A

PROTECT-80V

SCN/MUTESCP

ISC

BR R

C248

C250

C243

R258

C245

C258

LO/P

D210

C259

VCC

VSS

AGND

AGND C244

R262

~

C242

C256

-

C241

R2E

1R2E

2

C251

C253

-

C274

P210A

D204DGNDR1OUTVIDEO D/AIPOD

P205B Pinout P205BT1OUTMM/ MC

CDDISCTAPE1

TAPE2AUX

TUNER

EN 1+5VDMUTESCLED

SP BPROT

SP A

R204

R22

4

C20

4R

221 R

201

P204B

R22

2R

202

C20

1

C20

2

RCA201

R220

RL2

08

IC20

3

C216

RL2

06

RL2

10

RL2

05

F201/F202/F203 Rating: MFR075

M201

UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE

REPLACE ONLY WITH SAME TYPE FUSE AND RATINGFOR CONTINUED PROTECTION AGAINST RISK OF FIRE

C234

CAUTION:

C272

ATTENTION:

Q21

6

Q207

IC20

4

C252C254R2E4

C275R2E3

D203

W20

1

W20

2R

243

R24

4R

239

F202

C219R219

C220R240

D209

P20

1B

D21

3 R26

8

C224 C222

R27

2C

264

R24

2R

241

C22

1

C22

3

C246R259R260C249D220C247

IC20

2IC

201

D211

D207 D206 D205

F203

W20

3

F201

P213B

D202 D201

W20

4

W20

5 C281

W206

P214B

D208

R230

RL2

04

C213 R231

R23

3R

213

R23

4R

214 C

214

R232 R229

R21

1

C21

1 R21

2C

212

R20

9

C2

09

C210

RL2

03

C208

R21

0

R2

27

R20

7

C20

7

R2

28R

208

RL2

02

R225 R226 R203

C20

5R20

5

C20

6

R20

6

R22

3

R24

5

R271

RC

A20

4R

CA

203

RC

A20

2

R24

7

R248

R24

6

RL2

09

C225 C226 R217 C217

R23

7

RL2

07

R218 C215

R2

38

C2

18

R23

5R

215

R23

6

R21

6

C375BEE MAIN BOARD - SOLDER SIDE+

~~

C291

P208B

LEF

TA

GN

D

RIG

HT

HI

RA

IL

R2E7D230

W20

7

D2

31

HI

RA

IL

AG

ND

LOW

RA

ILP206B

LOW

RA

IL

IC20

6

R2E8

C290

C231

HS

201

-

TH

201 R

256

R25

5

R25

2

Q20

3

C280 R2G1 G2G1

R253

R2

49Q

204

Q20

1Q

202

C228

R25

0R

251

R25

7R

254

BR

202 H

S202

C227

TH

202

BR

201

BR

SCP

ISCC230

PROTECT

-80V

+80V

90Deg

-15V

90Deg

+15V

SCN/MUTE

VSS

VCC

AGND

AGND

LO/P

C229

P209A

P21

1A

Q215 R296 Q208C273 R294

R2A

2

R29

7Q211 Q209

C268

C375BEE MAIN BOARD - COMPONENT SIDE

1

IC205

C26

1

C2

62

C26

0

RL215

R2

64

R2

63

8

R2

65

R2

66

R2

A6

D21

9

R281

R280

R28

8

R28

9

R2

93

R28

2 L201

D21

5

R28

5 Q213

R28

4

Q214

HS

206

Oct. 28. 2008C233

L202R283

C26

3R

269

D21

2

D217 D218

PAD4PAD5

RL213PAD2

RL211

D22

8

D21

4R

279

R27

6

R27

7

R27

5

RL212

PAD3

C2

79

R27

4

R2

78

Q2

05

R27

3

RL214

C267 C266

S202

C270

PAD1

R270

R20

0

R2A

4

C271 Q212

R28

6

R28

7

R29

9

R29

8

R2A

3

R2A

5

J201

Q21

0

R29

5

D216

J202

R29

2

R29

1

PAD6C269 C265

S201

- 20 -

PCB LAYOUT

Page 21: NAD C375BEE service manual

R304

R334

R303

R333

W30

1

C30

8

R31

0

IR OUT

C375BEE TONE BOARD - SOLDER SIDE

IR IN

C306C307

C375BEE TONE BOARD - COMPONENT SIDE

RV302 RV304

C317

AG

ND

RV301

R32

9

C32

4

R317

RL3

01

R30

6R

308

C31

3R

311

C31

4 D30

1

C31

1

R31

9R

315

R305

R307

RV305

C30

5

C309

C312

RV306

R32

0

R314

C32

0

R312

C31

6

C31

8

R31

3R

309

C310

R322

R31

6R

318

C321C319

C322 R321

M301

C304

R30

2R

V30

8

P301A

C33

0

RV307

C32

9IR

INIR

OU

T

C302

Oct. 28. 2008C375BEE Tone Board VM1.0

C315

R32

4R

323

Q30

2Q

301

R32

5

C323

RV

303

R328

C32

6R327

C327

Q30

3Q

304

R32

6

VOL-

TONE

BRIDGE+26V

VOL++5V6

DGNDBGND

C32

5

P30

2B

C303

R30

1B

RID

GE

+26V

-26V

C301

R IN

L IN

AG

ND

R O

UT

L O

UT

- 21 -

PCB LAYOUT

Page 22: NAD C375BEE service manual

C401

REPLACE ONLY WITH SAME TYPE

C375BEE/275BEE STANDBY BOARD - SOLDER SIDE

ATTENTION:PROTECTION AGAINST RISK OF FIRE

UTILISER UN FUSIBLEDE RECHANGE DE MEME TYPE

FUSE AND RATING

C375BEE/275BEE Standby Board VM1.0 Oct. 28. 2008

C375BEE/275BEE STANDBY BOARD - COMPONENT SIDE

D40

5

HS

401

C410FOR CONTINUED

C409R401

PC401

C405 L401

P40

2B

R404D403

CAUTION:

C402

+ IC401

C404

C403

BR

401

+W405 ~

-~

W404TR401

P404B

F401

T1A

L/25

0V

W402P401

W403 W401P402

C408

D401 R40

3

C406 R402

RL401

when using it

TR402

Pls cut HF115 2pins

IC40

2

D40

7D

402

D406

D40

8D

404

C40

7

P403B

J402

J401

- 22 -

PCB LAYOUT

Page 23: NAD C375BEE service manual

Q538

D536

C375BEE Display Board VM1.0 Oct. 25. 2008

D523

Q544Q542

D544

D531

Q502

R510

Q551

C514 R551 C515

D517

D518

C509

C516

P502A

D501

R527

Q534

R549

R502

R547

Q533

R524

C510

R523

R546 R548

Q525

C513

R507 D

534

R568

R569

R504

R503

R501

R571 Q543 Q530

R531

R526

R541 Q541 Q531 R532 R561

R559

D530D535

R542

D526D541

R556 R539 Q539

R540

Q528

R529

R557

Q529

R530 R558 Q540

D539D524 D540

D525

R572

R508 R511

R519

D528

IC502R528 C

505

R506

R509

R505

C506

C501

C502

IC503

R565

C503

R566

C504

P501A

IC501

P503A

R564

R567

D543

Q548

D529

Q547

D549

Q532 R562Q545

R518

Q509

R543

R533

D542D527

R563 Q546

R545

Q510

R544

C507

G501

R525

R512

R513

D503

R560D532 R552

Q524

Q522

R522

R520

Q505

R521

C511

Q523

D520

Q535

IC505

C512 R553

D546

R550

Q550

R534

D519

D545

C508

Q504

Q503

D533

Q536

C519

D502

R554

R537

Q507

R516

D548D522

R538

R555 Q549

R570

Q537D538

D537

Q508

R517

R514R535

D547C518

D521

Q506

R515

R536

C375BEE DISPLAY BOARD - SOLDER SIDE

J501

C375BEE DISPLAY BOARD - COMPONENT SIDE

MP

D504

SP A

S501

SP B

S502B

S503B

D508

D505

D509D507

POWER

S511

D506

P504A

C375BEE Display Board VM1.0 Oct. 25. 2008

CD

S504

TUNER

S505

DISC / PHONO

B

S506B

AUX

S507

C517

D512 D513D510 D511

IC504

S508

TAPE2 TAPE1

S509

TONE

S510

D516D514 D515

X501IC506

STB

Y

+5.6

V

+8V

AG

ND

TP DG

ND

- 23 -

PCB LAYOUT

Page 24: NAD C375BEE service manual

C375BEE/C275BEE Opamp BOARD - SOLDER SIDE

Q610

C375BEE/C275BEE Opamp BOARD - COMPONENT SIDE

Q609

VP1.

0 O

ct.1

0.20

08

31

Q61

1

P601

AC

375B

EE/C

275B

EE O

pam

pQ

612

- 24 -

PCB LAYOUT (Only replace Line In or Line Out modules, do not repair)

Line in module C611 is 39pF M201 01-37506-10Line out module C611 is 47pF M301 01-37506-20

Page 25: NAD C375BEE service manual

C375 RS232 Board VM1.0 Oct. 28. 2008

C375 RS232 BOARD

6

1

J701

R701 5

9P701A

- 25 -

PCB LAYOUT

Page 26: NAD C375BEE service manual

LJ801

R

C375BEE HEADPHONE BOARD

P801A

- 26 -

PCB LAYOUT

Page 27: NAD C375BEE service manual

C375BEE/C275BEE Binding Post Board - COMPONENT SIDE

C375BEE/C275BEE Binding Post Board - SOLDER SIDE

C375BEE/C275BEE Binding Post Board VM1.0 Oct. 22. 08

P901B

- 27 -

PCB LAYOUT

Page 28: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINT

P/N 01-37501-00 PCB1 BOARD (POWERAMP MODULE) DIODE

D101 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D102 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D103 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D104 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D105 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D106 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D107 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D108 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D109 Switch Diode BAV21 33-40021-00 DAX/.300X.080/.031D110 Switch Diode BAV21 33-40021-00 DAX/.300X.080/.031D111 Switch Diode 18V, 1/2W 33-11800-00 DAX/.300X.080/.031D112 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D113 Rectifier Diode 1N5404 33-25404-02 DAX/.600X.200/.059D114 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D115 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D116 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D117 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D118 Switch Diode BAV21 33-40021-00 DAX/.300X.080/.031D119 Switch Diode BAV21 33-40021-00 DAX/.300X.080/.031D120 Zener Diode 6.8V, 1/2W 33-16809-00 DAX/.300X.080/.031D125 Switch Diode 2.4V, 1/2W 33-12409-00 DAX/.300X.080/.031D126 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D127 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D128 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D129 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D130 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031

TRANSISTORQ101 Transistor KSC2690AYSTU 31-02690-00 TO126/90/ECBQ102 Transistor 2SA970-GR J31-00970-00 TO92/100/ECBQ103 Transistor 2SC2240-GR J31-02240-00 TO92/100/ECBQ104 Transistor 2SC2878 J31-02878-00 TO92/100/ECBQ105 Transistor 2SA1015-GR 31-01015-00 TO92/100/ECBQ106 Transistor 2SC2878 J31-02878-00 TO92/100/ECBQ107 Transistor 2SC2240-GR J31-02240-00 TO92/100/ECBQ108 Transistor 2SA970-GR J31-00970-00 TO92/100/ECBQ109 Transistor KSA1220AYSTU 31-01220-00 TO126/90/ECBQ111 Transistor 2SA970-GR J31-00970-00 TO92/100/ECBQ112 Transistor 2SC2240-GR J31-02240-00 TO92/100/ECBQ113 Transistor 2SC2240-GR J31-02240-00 TO92/100/ECBQ114 Transistor 2SC2240-GR J31-02240-00 TO92/100/ECBQ115 Transistor 2SA970-GR J31-00970-00 TO92/100/ECBQ116 Transistor 2SA970-GR J31-00970-00 TO92/100/ECBQ117 Transistor 2SC2240-GR J31-02240-00 TO92/100/ECBQ118 Transistor 2SA1015-GR 31-01015-00 TO92/100/ECBQ119 Transistor 2SA1013-O J31-01013-00 TO92/100/ECBQ120 Transistor 2SC2383-O J31-02383-00 TO92/100/ECBQ121 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ122 Transistor 2SA970-GR J31-00970-00 TO92/100/ECBQ129 Transistor 2SA970-GR J31-00970-00 TO92/100/ECBQ130 Transistor 2SC2240-GR J31-02240-00 TO92/100/ECBQ131 Transistor KSA1220AYSTU 31-01220-00 TO126/90/ECBQ132 Transistor KSC2690AYSTU 31-02690-00 TO126/90/ECB

- 28 -

ELECTRICAL PARTS LIST

Page 29: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINTQ133 Transistor KSC2690AYSTU 31-02690-00 TO126/90/ECBQ135 Transistor KSC2690AYSTU 31-02690-00 TO126/90/ECBQ136 Transistor KSC2690AYSTU 31-02690-00 TO126/90/ECBQ137 Transistor KSA1220AYSTU 31-01220-00 TO126/90/ECBQ138 Transistor KSA1220AYSTU 31-01220-00 TO126/90/ECBQ139 Transistor 2SA2121-O J31-02121-00 TO264/215/BCEQ140 Transistor 2SA2121-O J31-02121-00 TO264/215/BCEQ141 Transistor 2SA2121-O J31-02121-00 TO264/215/BCEQ142 Transistor 2SA2121-O J31-02121-00 TO264/215/BCEQ143 Transistor 2SC5949-O J31-05949-00 TO264/215/BCEQ144 Transistor 2SC5949-O J31-05949-00 TO264/215/BCEQ145 Transistor 2SC5949-O J31-05949-00 TO264/215/BCEQ146 Transistor 2SC5949-O J31-05949-00 TO264/215/BCEQ147 Transistor MPSA92 31-00092-00 TO92/100/EBCQ148 Transistor 2SC2240-GR J31-02240-00 TO92/100/ECBQ149 Transistor MPSA92 31-00092-00 TO92/100/EBCQ150 Transistor MPSA92 31-00092-00 TO92/100/EBCQ151 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ152 Transistor KSC2690AYSTU 31-02690-00 TO126/90/ECB

THERMAL SWITCHCB101 THERMAL BRAKE ST-22 90C L TYPE JA07-70022-09 TO220AC/SURFACECB102 THERMAL BRAKE ST-22 80C L TYPE JA07-70022-08 TO220AC/SURFACE

ICIC101 Shunt Regulator TL431 03-00431-02 TO-92IC102 Shunt Regulator TL431 03-00431-02 TO-92IC103 Shunt Regulator TL431 03-00431-02 TO-92IC104 QUAD OP-AMP TL084CN 03-00084-00 DIP.100/14/W.300/L.750

RESISTORR101 Metal Film Resistor 475Ω, 1/6W, ±1% 07-24750-50 AX/.200X.080/.031R102 Metal Film Resistor 10KΩ, 1/6W, 1% 07-21002-50 AX/.200X.080/.031R103 Metal Film Resistor 549Ω, 1/6W, ±1% 07-25490-50 AX/.200X.080/.031R104 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R105 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031R106 Metal Film Resistor 24KΩ, 1/6W, ±5% 07-20243-50 AX/.200X.080/.031R107 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031R108 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031R109 Metal Film Resistor 24KΩ, 1/6W, ±5% 07-20243-50 AX/.200X.080/.031R110 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R111 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031R112 Metal Film Resistor 39KΩ, 1/6W, ±5% 07-20393-50 AX/.200X.080/.031R113 Metal Film Resistor 220KΩ, 1/6W, 5% 07-20224-50 AX/.200X.080/.031R114 Metal Film Resistor 82Ω, 1/6W, 5% 07-20820-50 AX/.200X.080/.031R115 Metal Film Resistor 15Ω, 1/6W, ±5% 07-20150-50 AX/.200X.080/.031R116 Metal Film Resistor 24KΩ, 1/6W, ±5% 07-20243-50 AX/.200X.080/.031R117 Metal Film Resistor 15Ω, 1/6W, ±5% 07-20150-50 AX/.200X.080/.031R118 Metal Film Resistor 220KΩ, 1/6W, 5% 07-20224-50 AX/.200X.080/.031R119 Metal Film Resistor 39KΩ, 1/6W, ±5% 07-20393-50 AX/.200X.080/.031R120 Metal Film Resistor 82Ω, 1/6W, 5% 07-20820-50 AX/.200X.080/.031R121 Metal Film Resistor 82Ω, 1/6W, 5% 07-20820-50 AX/.200X.080/.031R122 Metal Film Resistor 100KΩ, 1/6W, 5% 07-20104-50 AX/.200X.080/.031R123 Metal Film Resistor 82Ω, 1/6W, 5% 07-20820-50 AX/.200X.080/.031R124 Metal Film Resistor 100KΩ, 1/6W, 5% 07-20104-50 AX/.200X.080/.031R125 Metal Film Resistor 200Ω, 1/6W, ±5% 07-20201-50 AX/.400X.100/.031R126 Metal Film Resistor 10Ω, 1/6W, 5% 07-20100-50 AX/.200X.080/.031

- 29 -

ELECTRICAL PARTS LIST

Page 30: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINTR127 Metal Film Resistor 10Ω, 1/6W, 5% 07-20100-50 AX/.200X.080/.031R128 Metal Film Resistor 10Ω, 1/6W, 5% 07-20100-50 AX/.200X.080/.031R129 Metal Film Resistor 10Ω, 1/6W, 5% 07-20100-50 AX/.200X.080/.031R130 Metal Film Resistor 1KΩ, 1W, ±1% 07-21001-01 AX/.600X.125/.039R132 Metal Film Resistor 2K2Ω, 1/6W, 5% 07-20222-50 AX/.200X.080/.031R133 Metal Film Resistor 2.7KΩ, 1/6W, ±5% 07-20272-50 AX/.200X.080/.031R135 Metal Film Resistor 2K2Ω, 1/6W, 5% 07-20222-50 AX/.200X.080/.031R136 Metal Film Resistor 1KΩ, 1/6W, 1% 07-21001-50 AX/.200X.080/.031R137 Metal Film Resistor 1.5KΩ, 1/6W, ±1% 07-21501-50 AX/.200X.080/.031R138 Metal Film Resistor 10KΩ, 1/6W, 1% 07-21002-50 AX/.200X.080/.031R139 Metal Film Resistor 36KΩ, 1/6W, ±1% 07-23602-50 AX/.200X.080/.031R140 Metal Oxide Film Resistor 3.9KΩ, 3W, ±5% 07-30392-03 AX/.600X.125/.039R141 Metal Oxide Film Resistor 3.9KΩ, 3W, ±5% 07-30392-03 AX/.600X.125/.039R142 Metal Film Resistor 330Ω, 1/4W, ±5% 07-20331-51 AX/.400X.100/.031R143 Metal Film Resistor 3.3Ω, 1/4W, ±5% 07-20339-51 AX/.400X.100/.031R144 Metal Film Resistor 3.3Ω, 1/4W, ±5% 07-20339-51 AX/.400X.100/.031R145 Metal Film Resistor 330Ω, 1/4W, ±5% 07-20331-51 AX/.400X.100/.031R146 Metal Oxide Film Resistor 3.9KΩ, 3W, ±5% 07-30392-03 AX/.600X.125/.039R147 Metal Oxide Film Resistor 3.9KΩ, 3W, ±5% 07-30392-03 AX/.600X.125/.039R148 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R149 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R150 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R151 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R152 Metal Film Resistor 845Ω, 1W, ±1% 07-28450-01 AX/.600X.125/.039R153 Metal Film Resistor 1.8MΩ, 1/6W, ±5% 07-20185-50 AX/.200X.080/.031R154 Metal Film Resistor 1.2KΩ, 1/6W, ±5% 07-20122-50 AX/.200X.080/.031R155 Metal Film Resistor 4.7Ω, 1/6W, ±5% 07-20479-50 AX/.200X.080/.031R156 Metal Film Resistor 33Ω, 1/6W, 5% 07-20330-50 AX/.200X.080/.031R157 Metal Film Resistor 3K3Ω, 1/6W, 5% 07-20332-50 AX/.200X.080/.031R158 Metal Film Resistor 910Ω, 1/6W, ±5% 07-20911-50 AX/.200X.080/.031R159 Metal Film Resistor 1KΩ, 1W, ±1% 07-21001-01 AX/.600X.125/.039R160 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031R161 Metal Film Resistor 4.7Ω, 1/6W, ±5% 07-20479-50 AX/.200X.080/.031R162 Metal Film Resistor 33Ω, 1/6W, 5% 07-20330-50 AX/.200X.080/.031R163 Metal Film Resistor 15Ω, 1/4W, ±5% 07-20150-51 AX/.400X.100/.031R164 Metal Film Resistor 18Ω, 1/4W, ±5% 07-20180-51 AX/.400X.100/.031R165 Metal Oxide Film Resistor 1Ω, 1/2W, ±5% 07-30109-00 AX/.600X.125/.039R166 Metal Oxide Film Resistor 1Ω, 1/2W, ±5% 07-30109-00 AX/.600X.125/.039R167 Metal Film Resistor 22Ω, 1/6W, ±5% 07-20220-50 AX/.200X.080/.031R168 Metal Oxide Film Resistor 1Ω, 1/2W, ±5% 07-30109-00 AX/.600X.125/.039R169 Metal Oxide Film Resistor 1Ω, 1/2W, ±5% 07-30109-00 AX/.600X.125/.039R170 Metal Film Resistor 18Ω, 1/4W, ±5% 07-20180-51 AX/.400X.100/.031R171 Metal Film Resistor 15Ω, 1/4W, ±5% 07-20150-51 AX/.400X.100/.031R172 Cement Resistor 0.22Ω, 5W, ±5% 07-40228-15 RAD/RES/.520X.200/LS.400/.039R173 Cement Resistor 0.22Ω, 5W, ±5% 07-40228-15 RAD/RES/.520X.200/LS.400/.039R174 Cement Resistor 0.22Ω, 5W, ±5% 07-40228-15 RAD/RES/.520X.200/LS.400/.039R175 Cement Resistor 0.22Ω, 5W, ±5% 07-40228-15 RAD/RES/.520X.200/LS.400/.039R176 Metal Film Resistor 10KΩ, 1/4W, ±5% 07-20103-51 AX/.400X.100/.031R177 Metal Oxide Film Resistor 10Ω, 2W, ±5% 07-30100-12 AX/.600X.125/.039R178 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R179 Cement Resistor 0.22Ω, 5W, ±5% 07-40228-15 RAD/RES/.520X.200/LS.400/.039R180 Cement Resistor 0.22Ω, 5W, ±5% 07-40228-15 RAD/RES/.520X.200/LS.400/.039R181 Cement Resistor 0.22Ω, 5W, ±5% 07-40228-15 RAD/RES/.520X.200/LS.400/.039R182 Cement Resistor 0.22Ω, 5W, ±5% 07-40228-15 RAD/RES/.520X.200/LS.400/.039R183 Metal Film Resistor 47KΩ, 1/6W, 5% 07-20473-50 AX/.200X.080/.031

- 30 -

ELECTRICAL PARTS LIST

Page 31: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINTR184 Metal Film Resistor 470Ω, 1/6W, 5% 07-20471-50 AX/.200X.080/.031R185 Metal Film Resistor 47KΩ, 1/6W, 5% 07-20473-50 AX/.200X.080/.031R186 Metal Film Resistor 22KΩ, 1/6W, 5% 07-20223-50 AX/.200X.080/.031R187 Metal Film Resistor 2K2Ω, 1/6W, 5% 07-20222-50 AX/.200X.080/.031R188 Metal Film Resistor 33KΩ, 1/6W, ±5% 07-20333-50 AX/.200X.080/.031R189 Metal Film Resistor 22KΩ, 1/6W, 5% 07-20223-50 AX/.200X.080/.031R190 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R191 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031R192 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031R193 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031R194 Fusible Resistor 10Ω, 1W, ±5% 07-50100-01 AX/.600X.125/.039R195 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031R196 Metal Film Resistor 100KΩ, 1/6W, 5% 07-20104-50 AX/.200X.080/.031R197 Metal Film Resistor 100KΩ, 1/6W, 5% 07-20104-50 AX/.200X.080/.031R198 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R199 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R1A1 Metal Film Resistor 24.3KΩ, 1/6W, ±1% 07-22432-50 AX/.200X.080/.031R1A2 Metal Film Resistor 7.32KΩ, 1/6W, ±1% 07-27321-50 AX/.200X.080/.031R1A3 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031R1A4 Fusible Resistor 10Ω, 1W, ±5% 07-50100-01 AX/.600X.125/.039R1A5 Metal Film Resistor 100KΩ, 1/6W, 5% 07-20104-50 AX/.200X.080/.031R1A6 Metal Film Resistor 100KΩ, 1/6W, 5% 07-20104-50 AX/.200X.080/.031R1A8 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R1A9 Metal Film Resistor 7.32KΩ, 1/6W, ±1% 07-27321-50 AX/.200X.080/.031R1E1 Metal Film Resistor 24.3KΩ, 1/6W, ±1% 07-22432-50 AX/.200X.080/.031R1E2 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R1E3 Cement Resistor 0.05Ω, 3W, ±5% 07-40507-03 RAD/RES/.520X.200/LS.400/.039R1E4 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031R1E5 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031R1E6 Metal Film Resistor 9.1KΩ, 1/6W, ±5% 07-20912-50 AX/.200X.080/.031R1E7 Metal Film Resistor 560KΩ, 1/6W, ±5% 07-20564-50 AX/.200X.080/.031R1E8 Metal Film Resistor 100KΩ, 1/6W, 5% 07-20104-50 AX/.200X.080/.031R1E9 Metal Film Resistor 330KΩ, 1/6W, ±5% 07-20334-50 AX/.200X.080/.031R1F1 Metal Film Resistor 22KΩ, 1/6W, 5% 07-20223-50 AX/.200X.080/.031R1F2 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R1F3 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R1F4 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R1F5 Metal Film Resistor 270KΩ, 1/6W, ±1% 07-22703-50 AX/.200X.080/.031R1F6 Metal Film Resistor 4.7MΩ, 1/6W, ±5% 07-20475-50 AX/.200X.080/.031R1F7 Metal Film Resistor 470KΩ, 1/6W, ±1% 07-24703-50 AX/.200X.080/.031R1F8 Metal Film Resistor 390KΩ, 1/6W, ±1% 07-23903-50 AX/.200X.080/.031R1F9 Metal Film Resistor 110KΩ, 1/6W, ±1% 07-21103-50 AX/.200X.080/.031R1G1 Metal Film Resistor 100KΩ, 1/6W, 5% 07-20104-50 AX/.200X.080/.031R1G2 Metal Film Resistor 220KΩ, 1/6W, 5% 07-20224-50 AX/.200X.080/.031R1G3 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R1G4 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R1G5 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R1H1 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R1H2 Metal Film Resistor 63.4Ω, 1/4W, ±1% 07-26349-51 AX/.400X.100/.031R1H3 Metal Film Resistor 1KΩ, 1W, ±1% 07-21001-01 AX/.600X.125/.039R1N1 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031R1N7 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R1N8 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031

CAPACTIORC101 Polyester capacitor 100nF, ±5%, 250V 25-10422-01 RAD/CAP/.300X.150/LS.200/.031

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ELECTRICAL PARTS LIST

Page 32: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINTC102 Polyester capacitor 100nF, ±5%, 250V 25-10422-01 RAD/CAP/.300X.150/LS.200/.031

C103 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C104 Ceramic Capacitor 33pF, ±5%, 1KV 05-33013-02 CPAX/.200X.100/.031

C105 ALU Electrolytic Capacitor 10uF/100V, ±20%, 105� 06-10012-01 CPCYL1/D.300/LS.200/.031

C107 ALU Electrolytic Capacitor 10uF/100V, ±20%, 105� 06-10012-01 CPCYL1/D.300/LS.200/.031

C108 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C109 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C110 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031

C111 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C112 Ceramic Capacitor 47pF, ±5%, 1KV 05-47013-01 CPAX/.200X.100/.031C113 Ceramic Capacitor 120pF, ±5%, 1KV 05-12113-00 CPAX/.200X.100/.031

C114 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C115 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C116 Ceramic Capacitor 33pF, ±5%, 1KV 05-33013-02 CPAX/.200X.100/.031

C118 ALU Electrolytic Capacitor 10uF/100V, ±20%, 105� 06-10012-01 CPCYL1/D.300/LS.200/.031

C119 ALU Electrolytic Capacitor 10uF/100V, ±20%, 105� 06-10012-01 CPCYL1/D.300/LS.200/.031

C120 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C121 Ceramic Capacitor 22pF, ±5%, 1KV 05-22013-02 CPAX/.200X.100/.031C122 Ceramic Capacitor 22pF, ±5%, 1KV 05-22013-02 CPAX/.200X.100/.031C123 Ceramic Capacitor 22pF, ±5%, 1KV 05-22013-02 CPAX/.200X.100/.031C124 Ceramic Capacitor 430pF, ±5%, 1KV 05-43113-01 CPAX/.200X.100/.031

C125 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C126 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C127 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C128 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031

C129 ALU Electrolytic Capacitor 47uF/25V, ±20%, 105� 06-47021-01 CPCYL1/D.300/LS.200/.031

C130 ALU Electrolytic Capacitor 47uF/25V, ±20%, 105� 06-47021-01 CPCYL1/D.300/LS.200/.031

C131 Polyester capacitor 100nF, ±5%, 100V 25-10412-04 RAD/CAP/.300X.150/LS.200/.031C132 Ceramic Capacitor 220pF, ±10%, 1KV 05-22113-01 CPAX/.200X.100/.031C134 Ceramic Capacitor 470pF, ±5%, 1KV 05-47113-02 CPAX/.200X.100/.031C135 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C136 Ceramic Capacitor 470pF, ±5%, 1KV 05-47113-02 CPAX/.200X.100/.031C138 Ceramic Capacitor 220pF, ±10%, 1KV 05-22113-01 CPAX/.200X.100/.031C139 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031

C141 ALU Electrolytic Capacitor 4.7uF/50V, ±20%, 105� 06-47951-05 CPCYL/D.200/LS.200/.031

C142 Polyester capacitor 100nF, ±5%, 100V 25-10412-04 RAD/CAP/.300X.150/LS.200/.031

C143 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C144 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031

C145 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C146 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

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ELECTRICAL PARTS LIST

Page 33: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINT

C147 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C148 Polyester capacitor 470nF, ±5%, 63V 25-47461-00 RAD/.300X.150/LS.200/.031C149 Polyester capacitor 470nF, ±5%, 63V 25-47461-00 RAD/.300X.150/LS.200/.031

C150 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C151 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C152 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C154 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C155 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031

C157 ALU Electrolytic Capacitor 47uF/100V, ±20%, 105� 06-47012-01 CPCYL1/D.300/LS.200/.031

C158 ALU Electrolytic Capacitor 47uF/100V, ±20%, 105� 06-47012-01 CPCYL1/D.300/LS.200/.031

INDUCTORL101 INDUCTOR 10uH 08-02100-01L102 INDUCTOR 10uH 08-02100-01L103 INDUCTOR 100uH, EMC421LTB-121NS A08-01101-01

POTRV102 SEMI POT 500Ω, vertical type 09-02501-02 VRES17RV103 SEMI POT 10KΩ, vertical type 09-02103-02 VRES17RV104 SEMI POT 100Ω, vertical type 09-02101-01 VRES17

CONNECTORP101B HOUSING 11PIN2.54-C 13-22511-01 BLKCON.100/VH/TM1SQS/W.300/11P102B HOUSING 5PIN2.54-C 13-22505-00 BLKCON.100/VH/TM1SQS/W.300/5P103B HOUSING 5PIN3.96-C 13-23905-00 BLKCON.156/VH/TM1SQB/W.355/5P104A CONNECTOR 5PIN2.54-C 13-12505-00 BLKCON.100/VH/TM1SQ/W.200/5P106B CONNECTOR 4PIN2.54-C NOT USED

P/N 01-37502-00 PCB2 BOARD (MAIN) DIODE

D201 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D202 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D203 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D204 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D205 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D206 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D207 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D208 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D209 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D210 RECTIFY DIODES 1N4007 33-24007-00 DAX/.400X.100/.039D211 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D212 Zener Diode 24V, 1/2W 33-12400-00 DAX/.300X.080/.031D213 Zener Diode 24V, 1/2W 33-12400-00 DAX/.300X.080/.031D214 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D215 Zener Diode 13V, 1/2W 33-11300-00 DAX/.300X.080/.031D216 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D217 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D218 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D220 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D221 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D222 Zener Diode 15V, 1/2W 33-11500-00 DAX/.300X.080/.031D223 RECTIFY DIODES 1N4007 33-24007-00 DAX/.400X.100/.039D224 RECTIFY DIODES 1N4007 33-24007-00 DAX/.400X.100/.039D225 RECTIFY DIODES 1N4007 33-24007-00 DAX/.400X.100/.039D226 RECTIFY DIODES 1N4007 33-24007-00 DAX/.400X.100/.039

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ELECTRICAL PARTS LIST

Page 34: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINTD227 RECTIFY DIODES 1N4007 33-24007-00 DAX/.400X.100/.039D228 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D230 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D231 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031

TH201 Thyristor BT151-500R 33-60116-00 TO-220TH202 Thyristor BT151-500R 33-60116-00 TO-220

BRIDGEBR201 Rectifier Bridge KBU8D 33-30822-03 BRIDGE/1.010X.290/.063BR202 Rectifier Bridge KBU8D 33-30822-03 BRIDGE/1.010X.290/.063BR203 BRIDGE DB104G 33-30142-00 BRIDGE/.400X.500/.047BR204 BRIDGE DB104G 33-30142-00 BRIDGE/.400X.500/.047

TRANSISTORQ201 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ202 Transistor 2SA1015-GR 31-01015-00 TO92/100/ECBQ203 Transistor MPSA92 31-00092-00 TO92/100/EBCQ204 Transistor MPSA42 31-00042-00 TO92/100/ECBQ205 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ206 Transistor 2SC4793 J31-04793-00 TO220AB/BCEQ207 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ208 Transistor 2SA1015-GR 31-01015-00 TO92/100/ECBQ209 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ210 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ211 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ212 Transistor 2SA1015-GR 31-01015-00 TO92/100/ECBQ213 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ214 Transistor KSC2690AYSTU 31-02690-00 TO126/90/ECBQ215 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ216 MOSFET IRF5210 31-05210-00 TO-220

ICIC201 RAGULATOR NJM317F 03-00317-04 TO220ABIC202 RAGULATOR LM337T 03-00337-00 TO220ABIC203 RAGULATOR NJM317F 03-00317-04 TO220ABIC204 RAGULATOR LM337T 03-00337-00 TO220ABIC205 AMP Protector IC HS1237 01-01237-11 SIP.100/8/W.200/L.825IC206 CMOS Logic CD74HC86E 03-07486-00 DIP14

RESISTORF201 Metal Oxide Film Resistor FRX075 A07-70759-01 Pitch=5mmF202 Metal Oxide Film Resistor FRX075 A07-70759-01 Pitch=5mmF203 Metal Oxide Film Resistor FRX075 A07-70759-01 Pitch=5mmR200 Metal Oxide Film Resistor 2.2KΩ, 2W, ±5% 07-30222-04 AX/.600X.200/.039R201 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R202 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R203 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R204 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R205 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R206 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R207 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R208 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R209 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R210 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R211 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R212 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R213 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R214 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031

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ELECTRICAL PARTS LIST

Page 35: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINTR215 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R216 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R217 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R218 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R219 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R220 Metal Film Resistor 220Ω, 1/6W, 5% 07-20221-50 AX/.200X.080/.031R221 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R222 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R223 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R224 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R225 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R226 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R227 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R228 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R229 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R230 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R231 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R232 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R233 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R234 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R235 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R236 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R237 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R238 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R239 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R240 Metal Film Resistor 1megΩ, 1/6W, 5% 07-20105-50 AX/.200X.080/.031R241 Metal Film Resistor 105KΩ, 1/6W, ±1% 07-21053-50 AX/.200X.080/.031R242 Metal Film Resistor 105KΩ, 1/6W, ±1% 07-21053-50 AX/.200X.080/.031R243 Metal Film Resistor 68Ω, 1/6W, ±5% 07-20680-50 AX/.200X.080/.031R244 Metal Film Resistor 68Ω, 1/6W, ±5% 07-20680-50 AX/.200X.080/.031R245 Metal Film Resistor 100KΩ, 1/6W, 5% 07-20104-50 AX/.200X.080/.031R246 Metal Film Resistor 100KΩ, 1/6W, 5% 07-20104-50 AX/.200X.080/.031R247 Metal Film Resistor 100KΩ, 1/6W, 5% 07-20104-50 AX/.200X.080/.031R248 Metal Film Resistor 100KΩ, 1/6W, 5% 07-20104-50 AX/.200X.080/.031R249 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R250 Metal Film Resistor 22KΩ, 1/6W, 5% 07-20223-50 AX/.200X.080/.031R251 Metal Film Resistor 22KΩ, 1/6W, 5% 07-20223-50 AX/.200X.080/.031R252 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R253 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R254 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R255 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031R256 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R257 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031R258 Metal Film Resistor 4.7KΩ, 1/6W, ±1% 07-24701-50 AX/.200X.080/.031R259 Metal Film Resistor 4.7KΩ, 1/6W, ±1% 07-24701-50 AX/.200X.080/.031R260 Metal Film Resistor 240Ω, 1/6W, ±1% 07-22400-50 AX/.200X.080/.031R261 Metal Film Resistor 240Ω, 1/6W, ±1% 07-22400-50 AX/.200X.080/.031R262 Metal Film Resistor 220KΩ, 1/6W, 5% 07-20224-50 AX/.200X.080/.031R263 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R265 Metal Film Resistor 56KΩ, 1/6W, ±5% 07-20563-50 AX/.200X.080/.031R266 Metal Film Resistor 56KΩ, 1/6W, ±5% 07-20563-50 AX/.200X.080/.031R267 Metal Film Resistor 24.9KΩ, 1/6W, ±1% 07-22492-50 AX/.200X.080/.031R268 Metal Film Resistor 24.9KΩ, 1/6W, ±1% 07-22492-50 AX/.200X.080/.031R269 Metal Film Resistor 1KΩ, 1/6W, 1% 07-21001-50 AX/.200X.080/.031R270 Metal Film Resistor 1KΩ, 1/6W, 1% 07-21001-50 AX/.200X.080/.031

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ELECTRICAL PARTS LIST

Page 36: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINTR271 Metal Film Resistor 1KΩ, 1/6W, 1% 07-21001-50 AX/.200X.080/.031R272 Metal Film Resistor 1KΩ, 1/6W, 1% 07-21001-50 AX/.200X.080/.031R273 Metal Film Resistor 2K2Ω, 1/6W, 5% 07-20222-50 AX/.200X.080/.031R274 Metal Film Resistor 150KΩ, 1/6W, ±5% 07-20154-50 AX/.200X.080/.031R275 Metal Film Resistor 22KΩ, 1/6W, 5% 07-20223-50 AX/.200X.080/.031R276 Metal Film Resistor 82KΩ, 1/6W, ±5% 07-20823-50 AX/.200X.080/.031R277 Metal Film Resistor 150KΩ, 1/6W, ±5% 07-20154-50 AX/.200X.080/.031R278 Metal Film Resistor 33KΩ, 1/6W, ±5% 07-20333-50 AX/.200X.080/.031R279 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031R280 Metal Oxide Film Resistor 270Ω, 2W, ±5% 07-30271-12 AX/.600X.125/.039R281 Metal Oxide Film Resistor 270Ω, 2W, ±5% 07-30271-12 AX/.600X.125/.039R282 Metal Oxide Film Resistor 3.3Ω, 1W, ±5% 07-30339-04 AX/.600X.125/.039R283 Metal Oxide Film Resistor 3.3Ω, 1W, ±5% 07-30339-04 AX/.600X.125/.039R284 Metal Oxide Film Resistor 270Ω, 2W, ±5% 07-30271-12 AX/.600X.125/.039R285 Metal Film Resistor 6.8KΩ, 1/6W, ±5% 07-20682-50 AX/.200X.080/.031R286 Metal Film Resistor 10Ω, 1/4W, ±5% 07-20100-51 AX/.400X.100/.031R287 Metal Film Resistor 10Ω, 1/6W, 5% 07-20100-50 AX/.200X.080/.031R288 Metal Film Resistor 4.99KΩ, 1/6W, ±1% 07-24991-50 AX/.200X.080/.031R289 Metal Film Resistor 4.7KΩ, 1/6W, ±1% 07-24701-50 AX/.200X.080/.031R291 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R292 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R293 Metal Oxide Film Resistor 180Ω, 2W, ±5% 07-30181-02 AX/.600X.125/.039R294 Metal Film Resistor 820Ω, 1/6W, ±5% 07-20821-50 AX/.200X.080/.031R295 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R296 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R297 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R298 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R299 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R2A1 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R2A2 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R2A3 Metal Film Resistor 33Ω, 1/6W, 5% 07-20330-50 AX/.200X.080/.031R2A4 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R2A5 Metal Film Resistor 10Ω, 1/6W, 5% 07-20100-50 AX/.200X.080/.031R2A6 Metal Film Resistor 47KΩ, 1/6W, 5% 07-20473-50 AX/.200X.080/.031R2A7 Metal Film Resistor 330�, 1/6W, 5% 07-20331-50 AX/.200X.080/.031R2E1 Metal Film Resistor 2.67KΩ, 1/6W, ±1% 07-22671-50 AX/.200X.080/.031R2E2 Metal Film Resistor 240Ω, 1/6W, ±1% 07-22400-50 AX/.200X.080/.031R2E3 Metal Film Resistor 2.67KΩ, 1/6W, ±1% 07-22671-50 AX/.200X.080/.031R2E4 Metal Film Resistor 240Ω, 1/6W, ±1% 07-22400-50 AX/.200X.080/.031R2E5 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031R2E6 Metal Film Resistor 2K2Ω, 1/6W, 5% 07-20222-50 AX/.200X.080/.031R2E7 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R2E8 Metal Film Resistor 15KΩ, 1/6W, ±5% 07-20153-50 AX/.200X.080/.031

CAPACTIORC201 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031C202 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031C203 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031C204 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031C205 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031C206 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031C207 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031C208 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031C209 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031C210 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031C211 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031

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ELECTRICAL PARTS LIST

Page 37: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINTC212 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031C213 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031C214 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031C215 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031C216 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031C217 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031C218 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031C219 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031C220 Ceramic Capacitor 100pF, ±5%, 1KV 05-10113-04 CPAX/.200X.100/.031C221 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C222 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031

C223 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C224 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C225 Ceramic Capacitor 220pF, ±10%, 1KV 05-22113-01 CPAX/.200X.100/.031C226 Ceramic Capacitor 220pF, ±10%, 1KV 05-22113-01 CPAX/.200X.100/.031C227 Polyester capacitor 10nF, ±5%, 250V 25-10322-02 RAD/CAP/.300X.150/LS.200/.031C228 Polyester capacitor 10nF, ±5%, 250V 25-10322-02 RAD/CAP/.300X.150/LS.200/.031

C229 ALU Electrolytic Capacitor 10uF/100V, ±20%, 105� 06-10012-01 CPCYL1/D.200/LS.200/.031

C230 ALU Electrolytic Capacitor 10uF/100V, ±20%, 105� 06-10012-01 CPCYL1/D.200/LS.200/.031

C231 Polyester capacitor 100nF, ±5%, 100V 25-10412-04 RAD/CAP/.300X.150/LS.200/.031C232 Polyester capacitor 100nF, ±5%, 100V 25-10412-04 RAD/CAP/.300X.150/LS.200/.031

C233 ALU Electrolytic Capacitor 22000uF, ±20%, 100V, 105� 06-22312-01 CPCYL1/D2.165/LS.965/.079

C234 ALU Electrolytic Capacitor 22000uF, ±20%, 100V, 105� 06-22312-01 CPCYL1/D2.165/LS.965/.079

C239 Polyester capacitor 10nF, ±5%, 250V 25-10322-02 RAD/CAP/.300X.150/LS.200/.031C240 Polyester capacitor 10nF, ±5%, 250V 25-10322-02 RAD/CAP/.300X.150/LS.200/.031

C241 ALU Electrolytic Capacitor 2200uF, 63V, ±20%, 105� 06-22261-00 CPCYL1/D.900/LS.400/.062

C242 ALU Electrolytic Capacitor 2200uF, 63V, ±20%, 105� 06-22261-00 CPCYL1/D.900/LS.400/.062

C243 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C244 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031

C245 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C246 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C247 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C248 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C249 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C250 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031

C251 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C252 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C253 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C254 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031

C255 ALU Electrolytic Capacitor 1000uF, ±20%, 160V, 105� 06-10212-04 CPCYL1/D.900/LS.400/.062

C256 ALU Electrolytic Capacitor 1000uF, ±20%, 160V, 105� 06-10212-04 CPCYL1/D.900/LS.400/.062

C257 Polyester capacitor 100nF, ±5%, 250V 25-10422-01 RAD/.300X.150/LS.200/.034

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ELECTRICAL PARTS LIST

Page 38: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINTC258 Polyester capacitor 100nF, ±5%, 250V 25-10422-01 RAD/.300X.150/LS.200/.034

C259 ALU Electrolytic Capacitor 1uF/50V, ±20%, 105� 06-10951-03 CPCYL1/D.200/LS.200/.031

C260 ALU Electrolytic Capacitor 100uF/16V, ±20%, 105� 06-10111-07 CPCYL1/D.200/LS.200/.031

C261 ALU Electrolytic Capacitor 330uF, ±20%, 16V, 105� 06-33111-02 CPCYL1/D.300/LS.200/.031

C262 Polyester capacitor 220nF, ±5%, 63V 25-22461-02 RAD/CAP/.300X.250/LS.200/.031

C263 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C264 Bi-polarized AluElectrolytic Capacitor 10uF, ±20%, 50V, 105� 06-10051-11 CPCYL1/D.200/LS.200/.031

C269 Polyester capacitor 10nF, ±5%, 63V 25-10361-02 RAD/CAP/.300X.150/LS.200/.031C270 Polyester capacitor 10nF, ±5%, 63V 25-10361-02 RAD/CAP/.300X.150/LS.200/.031

C271 ALU Electrolytic Capacitor 47uF/16V, ±20%, 105� 06-47011-00 CPCYL1/D.200/LS.200/.031

C272 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C273 Polyester capacitor 10nF, ±5%, 63V 25-10361-02 RAD/CAP/.300X.150/LS.200/.031

C274 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C275 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C276 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031

C277 ALU Electrolytic Capacitor 1000uF, ±20%, 50V, 105� 06-10251-01 CPCYL1/D.640/LS.300/.031

C278 ALU Electrolytic Capacitor 1000uF, ±20%, 50V, 105� 06-10251-01 CPCYL1/D.640/LS.300/.031

C279 Bi-polarized AluElectrolytic Capacitor 10uF, ±20%, 50V, 105� 06-10051-11 CPCYL1/D.200/LS.200/.031

C281 ALU Electrolytic Capacitor 4.7uF/50V, ±20%, 105� 06-47951-05 CPCYL/D.200/LS.200/.031

C290 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031

C291 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

JUMPERR2G1 Link L=5mm 21-06500-00 AX/.200X.080/.031RL215 Link L=10mm 21-06101-00 AX/.400X.100/.031W201 Link L=12.5mm 21-06121-01 AX/.500X.100/.031W202 Link L=12.5mm 21-06121-01 AX/.500X.100/.031W203 Link L=12.5mm 21-06121-01 AX/.500X.100/.031W204 Link L=12.5mm 21-06121-01 AX/.500X.100/.031W205 Link L=12.5mm 21-06121-01 AX/.500X.100/.031W206 Link L=12.5mm 21-06121-01 AX/.500X.100/.031

BUS201 BUSBAR HS40-C375_B12V1-M025 69-124001-0

INDUCTORL201 Inductor 0.7uH, horizontal type 08-01079-01 RAD/.850X.450/LS.700/.059L202 Inductor 0.7uH, horizontal type 08-01079-01 RAD/.850X.450/LS.700/.059

RELAYRL201 RELAYS JRC-27F/012-S(555) 12-02101-02 RELAY_11RL202 RELAYS JRC-27F/012-S(555) 12-02101-02 RELAY_11RL203 RELAYS JRC-27F/012-S(555) 12-02101-02 RELAY_11RL204 RELAYS JRC-27F/012-S(555) 12-02101-02 RELAY_11RL205 RELAYS JRC-27F/012-S(555) 12-02101-02 RELAY_11RL206 RELAYS JRC-27F/012-S(555) 12-02101-02 RELAY_11RL207 RELAYS JRC-27F/012-S(555) 12-02101-02 RELAY_11RL208 RELAYS JRC-27F/012-S(555) 12-02101-02 RELAY_11RL209 RELAYS JRC-27F/012-S(555) 12-02101-02 RELAY_11

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ELECTRICAL PARTS LIST

Page 39: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINTRL210 RELAYS JRC-27F/012-S(555) 12-02101-02 RELAY_11RL211 RELAYS JQX-115F/036/1HS1 A12-03101-04 RELAY_1RL212 RELAYS JQX-115F/036/1HS1 A12-03101-04 RELAY_1RL213 RELAYS JQX-115F/036/1HS1 A12-03101-04 RELAY_1RL214 RELAYS JQX-115F/036/1HS1 A12-03101-04 RELAY_1

POTRV201 Stereo POT 1kΩB, RV142B-20-25A-B1K 09-02102-00 VRES20

CONNECTORJ201 HEADPHONE SOCKET CKX-3.5-20A / LJE0366DS-5 17-07001-07

J202 DUAL 3.5 HEADPHONESOCKET

SCJ351P00YS0B00 J17-02002-02

RCA201 RCA 6RCA, AV6-8.4-13 17-01006-00 RCA6ARCA202 RCA 6RCA, AV6-8.4-13 17-01006-00 RCA6ARCA203 RCA 6RCA, AV6-8.4-13 17-01006-00 RCA6ARCA204 RCA 6RCA, AV6-8.4-13 17-01006-00 RCA6AP201B HOUSING 5PIN2.54-C 13-22505-00 BLKCON.100/VH/TM1SQS/W.300/5P202B HOUSING 11PIN2.54-C 13-22511-01 BLKCON.100/VH/TM1SQS/W.300/11

P203A WIRE UL2547#26AWG &UL2547#24AWG, 8PIN

14-37508-00 BLKCON.100/VH/TM1SQ/W.200/8

P204B HOUSING 3PIN2.54-C 13-22503-00 BLKCON.100/VH/TM1SQ/W.200/3P205B CONNECTOR CON2X10 MALE 13-22520-05 BLKCON.100/VH/TM2OE/W.200/20P206B HOUSING 5PIN3.96-C 13-23905-00 BLKCON.156/VH/TM1SQB/W.355/5P207B HOUSING 5PIN3.96-C 13-23905-00 BLKCON.156/VH/TM1SQB/W.355/5P208B HOUSING 3PIN2.54-C 13-22503-00 BLKCON.100/VH/TM1SQ/W.200/3

P209A WIRE

UL1015#18AWG,yellow/black/black/blue/red,

One terminal:VH-5Y, anotherterminal�SDN-5Y, L=150mm

14-37505-01

P210A WIRE

UL1015#18AWG,yellow/black/black/blue/red,

One terminal:VH-5Y, anotherterminal�SDN-5Y, L=180mm

14-37505-02

P211A WIREUL2468#24AWG, One

terminal:XHB-11Y, anotherterminal�SCN-11Y, L=130mm

14-37511-00 BLKCON.100/VH/TM1SQS/W.200/11

P212A WIREUL2468#24AWG, One

terminal:XHB-11Y, anotherterminal�SCN-11Y, L=130mm

14-37511-00 BLKCON.100/VH/TM1SQS/W.200/11

P213B FPC CNT-FPC125-12-TS, 1.25mm,12pin

13-21212-01

P214B FPC CNT-FPC125-12-TS, 1.25mm,12pin

13-21212-01

P215B HOUSING 3PIN2.54-C 13-22503-00 BLKCON.100/VH/TM1SQ/W.200/3To Binding Post

BoardWIRE UL1015#16AWG, L=100mm,

6PIN14-37506-01

G2G1 Ground Solder Tap GND-8 32-28042-00

SWITCHS201 SWITCH SSSU122NA1 J11-05202-10 SLIDESWITCHES/SSSU141500S202 SWITCH SSSU122NA1 J11-05202-10 SLIDESWITCHES/SSSU141500

P/N 01-37503-00 PCB3 BOARD (TONE) DIODE

D301 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031

TRANSISTORQ301 Transistor 2SB647-D 31-00647-01 TO-92Q302 Transistor 2SD667-D 31-00667-01 TO-92Q303 Transistor 2SB647-D 31-00647-01 TO-92

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ELECTRICAL PARTS LIST

Page 40: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINTQ304 Transistor 2SD667-D 31-00667-01 TO-92

RESISTORR301 Metal Film Resistor 75KΩ, 1/6W, ±5% 07-20753-50 AX/.200X.080/.031R302 Metal Film Resistor 75KΩ, 1/6W, ±5% 07-20753-50 AX/.200X.080/.031R303 Chip Resistor 47Ω, ±5%,0805 07-90470-01 SM/R_0805R304 Chip Resistor 47Ω, ±5%,0805 07-90470-01 SM/R_0805R305 Metal Film Resistor 3.3KΩ, 1/6W, ±1% 07-23301-50 AX/.200X.080/.031R306 Metal Film Resistor 3.3KΩ, 1/6W, ±1% 07-23301-50 AX/.200X.080/.031R307 Metal Film Resistor 732Ω, 1/6W, ±1% 07-27320-50 AX/.200X.080/.031R308 Metal Film Resistor 732Ω, 1/6W, ±1% 07-27320-50 AX/.200X.080/.031R309 Metal Film Resistor 390Ω, 1/6W, ±1% 07-23900-50 AX/.200X.080/.031R310 Metal Film Resistor 390Ω, 1/6W, ±1% 07-23900-50 AX/.200X.080/.031R311 Metal Film Resistor 180Ω, 1/6W, ±1% 07-21800-50 AX/.200X.080/.031R312 Metal Film Resistor 180Ω, 1/6W, ±1% 07-21800-50 AX/.200X.080/.031R313 Metal Film Resistor 51KΩ, 1/6W, ±5% 07-20513-50 AX/.200X.080/.031R314 Metal Film Resistor 51KΩ, 1/6W, ±5% 07-20513-50 AX/.200X.080/.031R317 Metal Film Resistor 1.5KΩ, 1/6W, ±1% 07-21501-50 AX/.200X.080/.031R318 Metal Film Resistor 1.5KΩ, 1/6W, ±1% 07-21501-50 AX/.200X.080/.031R319 Metal Film Resistor 390Ω, 1/6W, ±1% 07-23900-50 AX/.200X.080/.031R320 Metal Film Resistor 390Ω, 1/6W, ±1% 07-23900-50 AX/.200X.080/.031R321 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R322 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R323 Metal Film Resistor 2K2Ω, 1/6W, 5% 07-20222-50 AX/.200X.080/.031R324 Metal Film Resistor 2K2Ω, 1/6W, 5% 07-20222-50 AX/.200X.080/.031R325 Metal Film Resistor 2K2Ω, 1/6W, 5% 07-20222-50 AX/.200X.080/.031R326 Metal Film Resistor 2K2Ω, 1/6W, 5% 07-20222-50 AX/.200X.080/.031R327 Metal Film Resistor 2K2Ω, 1/6W, 5% 07-20222-50 AX/.200X.080/.031R328 Metal Film Resistor 2K2Ω, 1/6W, 5% 07-20222-50 AX/.200X.080/.031R329 Metal Film Resistor 47Ω, 1/6W, ±5% 07-20470-50 AX/.200X.080/.031R333 Chip Resistor 47Ω, ±5%,0805 07-90470-01 SM/R_0805R334 Chip Resistor 47Ω, ±5%,0805 07-90470-01 SM/R_0805

CAPACTIOR

C301 ALU Electrolytic Capacitor 100uF/16V, 20%, 105� 06-10111-07 CPCYL1/D.300/LS.200/.031

C302 ALU Electrolytic Capacitor 100uF/16V, 20%, 105� 06-10111-07 CPCYL1/D.300/LS.200/.031

C303 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C304 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C305 Polyester capacitor 22nF, ±5%, 63V 25-22361-04 RAD/CAP/.400X.150/LS.300/.031C306 Polyester capacitor 22nF, ±5%, 63V 25-22361-04 RAD/CAP/.400X.150/LS.300/.031C307 Polyester capacitor 100nF, ±5%, 63V 25-10461-04 RAD/CAP/.400X.150/LS.300/.031C308 Polyester capacitor 100nF, ±5%, 63V 25-10461-04 RAD/CAP/.400X.150/LS.300/.031C309 Polyester capacitor 220nF, ±5%, 63V 25-22461-02 RAD/CAP/.300X.250/LS.200/.031C310 Polyester capacitor 220nF, ±5%, 63V 25-22461-02 RAD/CAP/.300X.250/LS.200/.031C311 Polyester capacitor 1uF, ±5%, 63V 25-10561-00 RAD/CAP/.300X.250/LS.200/.031C312 Polyester capacitor 1uF, ±5%, 63V 25-10561-00 RAD/CAP/.300X.250/LS.200/.031C313 Ceramic Capacitor 220pF, ±10%, 1KV 05-22113-01 CPAX/.200X.100/.031C314 Ceramic Capacitor 220pF, ±10%, 1KV 05-22113-01 CPAX/.200X.100/.031C317 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C318 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031

C319 ALU Electrolytic Capacitor 220uF, ±20%, 25V, 105� 06-22121-03 CPCYL1/D.200/LS.200/.031

C320 ALU Electrolytic Capacitor 220uF, ±20%, 25V, 105� 06-22121-03 CPCYL1/D.200/LS.200/.031

C321 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C322 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031

C323 ALU Electrolytic Capacitor 10uF, ±20%, 50V, 105� 06-10021-04 CPCYL1/D.300/LS.200/.031

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ELECTRICAL PARTS LIST

Page 41: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINT

C324 ALU Electrolytic Capacitor 10uF, ±20%, 50V, 105� 06-10021-04 CPCYL1/D.300/LS.200/.031

C325 ALU Electrolytic Capacitor 10uF, ±20%, 50V, 105� 06-10021-04 CPCYL1/D.300/LS.200/.031

C326 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031

C327 Bi-polarized AluElectrolytic Capacitor 4.7uF,50V,±20%, 85� 06-47951-04 CPCYL1/D.200/LS.200/.031

C329 Ceramic Capacitor 470pF, ±5%, 1KV 05-47113-02 CPAX/.200X.100/.031C330 Ceramic Capacitor 470pF, ±5%, 1KV 05-47113-02 CPAX/.200X.100/.031

JUMPERW301 Link L=7.5mm 21-06750-00

POTRV301 POT RD163121A174-10KA×2 J09-01103-14 VPOT_4RV302 POT RD163121A174-10KA×2 J09-01103-14 VPOT_4RV303 POT RK16812MGA10(20KBX2) J09-01203-05 VPOT_5RV304 POT RD163121A020 20KMN J09-01203-06 VPOT_4RV305 POT 10KΩ 09-02103-00 VRES21RV306 POT 10KΩ 09-02103-00 VRES21RV307 POT 100Ω 09-02101-00 VRES21RV308 POT 100Ω 09-02101-00 VRES21

RELAYRL301 RELAYS JRC-27F/005-S(555) 12-02202-03 RELAY_11

CONNECTORP302B HOUSING 10PIN2.54-C 13-22510-00 BLKCON.100/VH/TM1SQS/W.300/10

P301A WIRE UL1007#24AWG, L=40mm,11PIN

14-37511-02 BLKCON.100/VH/TM1SQ/W.200/11

P300 to mainboard

WIRE UL1015#18AWG , L=160mm,1PIN

14-37501-08

AH P/N�� 01-37504-10 C P/N� 01-37504-20 PCB4 BOARD (STANDBY) DIODE

D401 Super Fast RecoveryRectifier Diode

FR107 33-20107-00 DAX/.400X.100/.039

D402 Schottky Barrier Rectifier 1N5822 33-25822-00 DAX/.300X.200/.059

D403 Zener Diode 4.7V, 1/2W, ±2% 33-14709-05 DAX/.300X.080/.031D404 Switch Diode 1N5819 33-25819-00 DAX/.400X.100/.039D405 RECTIFY DIODES 1N4007 33-24007-00 DAX/.400X.100/.039D406 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D407 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D408 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D409 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031

BRIDGEBR401 Rectifier Bridge DB105 33-30162-00 DIP4

ICIC401 Power controller IC TNY274PN 03-00274-00 DIP-8CIC402 RAGULATOR L7805CT 03-07805-00 TO220AB/123PC401 Photocoupler PC817A 03-00817-01 DIP4

RESISTORR401 Metal Oxide Film Resistor 68KΩ, 1W, ±5% 07-30683-21 AX/.600X.125/.039R402 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031R403 Metal Film Resistor 510�, 1/6W, 5% 07-20511-50 AX/.200X.080/.031R404 Metal Film Resistor 150Ω, 1/6W, ±5% 07-20151-50 AX/.200X.080/.031

CAPACTIOR

C401 Interfernece SuppressionCap

0.1uF/275V, ±10% A25-10422-07 RAD/CAP/.400X.200/LS.400/.031

- 41 -

ELECTRICAL PARTS LIST

Page 42: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINT

C402 ALU Electrolytic Capacitor 10uF,400V,±20%, 105� 06-10042-00 CPCYL1/D.400/LS.200/.031

C403 X Capacitor 10nF/275V, ±10% A25-10322-05 RAD/CAP/.400X.200/LS.400/.031C404 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C405 Y Capacitor 1nF, Y Type A05-10242-00 RAD/CAP/.400X.200/LS.400/.031

C406 ALU Electrolytic Capacitor 220uF, 16V, ±20%, 105� 06-22111-21 CPCYL1/D.300/LS.200/.031

C407 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031

C408 ALU Electrolytic Capacitor 220uF, 16V, ±20%, 105� 06-22111-21 CPCYL1/D.300/LS.200/.031

C409 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031

C410 ALU Electrolytic Capacitor 220uF, 10V, ±20%, 105� 06-22111-20 CPCYL1/D.300/LS.200/.031

JUMPERW401(AH) Link(φ1.0) 7.5mm 21-10750-00 7.5mmW402(AH) Link(φ1.0) 7.5mm 21-10750-00 7.5mmW403(C) Link(φ1.0) 7.5mm 21-10750-00 7.5mm

W404 Link(φ1.0) 10mm 21-10101-00 10mmW405 Link(φ1.0) 10mm 21-10101-00 10mm

INDUCTORL401 INDUCTOR 10uH 19-35980-00 AX/.400X.100/.031

TRANSFORMERTR402 Transformer EE16 9V 5W A18-37516-00 TRANS_2

RELAYRL401 RELAYS DH1U5VDC TV-8 DH5D1-O A12-02101-01

FUSEF401 FUSE T1AL/250V A20-12102-00

FUSE HOLDERF401 FUSE HOLDER LS-PTF-78 (CQ-200C) A20-20000-06 RAD/.1000X.400/LS.850/.066

CONNECTORJ401 JACK HS4-CI9120-B009V1-M032 32-26304-00J402 JACK KY187 32-24804-00

P402B HOUSING 6PIN2.54-C 13-22506-00 BLKCON.100/VH/TM1SQS/W.300/6P403B HOUSING 2PIN3.96-C 13-23902-00 BLKCON.156/VH/TM1SQB/W.355/2P404B HOUSING 4PIN7.92-C 13-23907-01 BLKCON.156/VH/TM1SQS/W.355/7

P401 to ACOUTLET(AH)

WIRE UL1672#16AWG , L=420mm A14-37501-03

P402 to ACOUTLET(AH)

WIRE UL1672#16AWG , L=420mm A14-37501-04

P/N�� 01-37505-00 PCB5 BOARD (DISPLAY) DIODE

D501 RECTIFY DIODES 1N4007 33-24007-00 DAX/.400X.100/.039D502 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D503 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031

D504 LED (three color) φ5, Blue/Red/Amber Threecolor BL-BUBJFB52C4V-1

33-50565-02

D505 LED BLUE φ3, BLUE, BL-BB52V1 33-50360-06 LED/D.225/LS.100/.039D506 LED BLUE φ3, BLUE, BL-BB52V1 33-50360-06 LED/D.225/LS.100/.039D507 LED BLUE φ3, BLUE, BL-SB3248 33-50360-07 LED/D.225/LS.100/.039D508 LED BLUE φ3, BLUE, BL-SB3248 33-50360-07 LED/D.225/LS.100/.039D509 LED (Dual Color) φ3,Blue/Blue,BL-BB5B5201-B 33-50366-00D510 LED BLUE φ3, BLUE, BL-SB3248 33-50360-07 LED/D.225/LS.100/.039D511 LED BLUE φ3, BLUE, BL-SB3248 33-50360-07 LED/D.225/LS.100/.039D512 LED (Dual Color) φ3,Blue/Blue,BL-BB5B5201-B 33-50366-00D513 LED BLUE φ3, BLUE, BL-SB3248 33-50360-07 LED/D.225/LS.100/.039

- 42 -

ELECTRICAL PARTS LIST

Page 43: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINTD514 LED BLUE φ3, BLUE, BL-SB3248 33-50360-07 LED/D.225/LS.100/.039D515 LED BLUE φ3, BLUE, BL-SB3248 33-50360-07 LED/D.225/LS.100/.039D516 LED BLUE φ3, BLUE, BL-SB3248 33-50360-07 LED/D.225/LS.100/.039D517 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D518 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D532 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D533 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D534 Zener Diode 4.7V, 1/2W 33-14709-00 DAX/.300X.080/.031D535 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D536 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D538 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D539 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D540 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D541 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D542 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D543 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D544 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D545 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D546 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D547 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D548 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D549 Switch Diode 1N4148 33-44148-00 DAX/.300X.080/.031D550 RECTIFY DIODES 1N4007 33-24007-00 DAX/.400X.100/.039

TRANSISTORQ502 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ503 Transistor 2SA1015-GR 31-01015-00 TO92/100/ECBQ504 Transistor 2SA1015-GR 31-01015-00 TO92/100/ECBQ505 Transistor 2SA1015-GR 31-01015-00 TO92/100/ECBQ506 Transistor 2SA1015-GR 31-01015-00 TO92/100/ECBQ507 Transistor 2SA1015-GR 31-01015-00 TO92/100/ECBQ508 Transistor 2SA1015-GR 31-01015-00 TO92/100/ECBQ509 Transistor 2SA1015-GR 31-01015-00 TO92/100/ECBQ510 Transistor 2SA1015-GR 31-01015-00 TO92/100/ECBQ522 Digital Transistor DTA114ESA 31-00114-03 TO-92Q523 Digital Transistor DTA114ESA 31-00114-03 TO-92Q524 Digital Transistor DTA114ESA 31-00114-03 TO-92Q525 Digital Transistor KRC102M-AT/P 31-00102-00 TO-92Q528 Transistor 2SA1015-GR 31-01015-00 TO92/100/ECBQ529 Transistor 2SA1015-GR 31-01015-00 TO92/100/ECBQ530 Transistor 2SA1015-GR 31-01015-00 TO92/100/ECBQ531 Transistor 2SA1015-GR 31-01015-00 TO92/100/ECBQ532 Transistor 2SA1015-GR 31-01015-00 TO92/100/ECBQ533 Transistor 2SD667-D 31-00667-01 TO-92Q534 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ535 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ536 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ537 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ538 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ539 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ540 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ541 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ542 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ543 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ544 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ545 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECB

- 43 -

ELECTRICAL PARTS LIST

Page 44: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINTQ546 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ547 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ548 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ549 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ550 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECBQ551 Transistor 2SC1815-GR 31-01815-00 TO92/100/ECB

IC

IC501 Enhanced RS-232 LineDrivers/Receivers

SP232EEP 03-00232-00 DIP.100/16/W.300/L.775

IC502Supervisory Circuits withI2C Serial 2k-bit CMOS

EEPROMCAT1021PI-42 03-01021-01 DIP.100/8/W.300/L.400

IC503 MICOM AT89S52-24PU 03-08952-20 DIP.100/40/W.600/L2.050IC504 IR Sensor HS0038B4 03-00038-40IC505 Shift Registers CD4094 03-04094-00 DIP.100/16/W.300/L.775

RESISTORR501 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R502 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R503 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R504 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R505 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R506 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R507 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R508 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R509 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R510 Resistor NET 1K, ±5%,8R9P,A102J 07-00102-00 SIP/TM/L.900/9R511 Resistor NET 1K, ±5%,8R9P,A102J 07-00102-00 SIP/TM/L.900/9R512 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R513 Metal Film Resistor 56�, 1/6W, 5% 07-20560-50 AX/.200X.080/.031R514 Metal Film Resistor 56�, 1/6W, 5% 07-20560-50 AX/.200X.080/.031R515 Metal Film Resistor 56�, 1/6W, 5% 07-20560-50 AX/.200X.080/.031R516 Metal Film Resistor 56�, 1/6W, 5% 07-20560-50 AX/.200X.080/.031R517 Metal Film Resistor 56�, 1/6W, 5% 07-20560-50 AX/.200X.080/.031R518 Metal Film Resistor 56�, 1/6W, 5% 07-20560-50 AX/.200X.080/.031R519 Metal Film Resistor 56�, 1/6W, 5% 07-20560-50 AX/.200X.080/.031R520 Metal Film Resistor 130Ω, 1/6W, ±5% 07-20131-50 AX/.200X.080/.031R521 Metal Film Resistor 270Ω, 1/6W, ±1% 07-22700-50 AX/.200X.080/.031R522 Metal Film Resistor 130Ω, 1/6W, ±5% 07-20131-50 AX/.200X.080/.031R523 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R525 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031R526 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R527 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R528 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R529 Metal Film Resistor 56�, 1/6W, 5% 07-20560-50 AX/.200X.080/.031R530 Metal Film Resistor 56�, 1/6W, 5% 07-20560-50 AX/.200X.080/.031R531 Metal Film Resistor 56�, 1/6W, 5% 07-20560-50 AX/.200X.080/.031R532 Metal Film Resistor 56�, 1/6W, 5% 07-20560-50 AX/.200X.080/.031R533 Metal Film Resistor 56�, 1/6W, 5% 07-20560-50 AX/.200X.080/.031R534 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R535 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R536 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R537 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R538 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R539 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R540 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R541 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R542 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031

- 44 -

ELECTRICAL PARTS LIST

Page 45: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINTR543 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R544 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R545 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R546 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R547 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R548 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R549 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R550 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R552 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R553 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R554 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R555 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R556 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R557 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R558 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R559 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R560 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R561 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R562 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R563 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R564 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R565 Metal Film Resistor 10Ω, 1/6W, 5% 07-20100-50 AX/.200X.080/.031R566 Metal Film Resistor 10Ω, 1/6W, 5% 07-20100-50 AX/.200X.080/.031R567 Metal Film Resistor 1KΩ, 1/6W, 5% 07-20102-50 AX/.200X.080/.031R568 Metal Film Resistor 10KΩ, 1/6W, 5% 07-20103-50 AX/.200X.080/.031R569 Metal Film Resistor 2K2Ω, 1/6W, 5% 07-20222-50 AX/.200X.080/.031R570 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R571 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031R572 Metal Film Resistor 4.7KΩ, 1/6W, ±5% 07-20472-50 AX/.200X.080/.031

CAPACTIORC501 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C502 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C503 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C504 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C505 Ceramic Capacitor 22pF, ±5%, 1KV 05-22013-02 CPAX/.200X.100/.031C506 Ceramic Capacitor 22pF, ±5%, 1KV 05-22013-02 CPAX/.200X.100/.031C507 Polyester capacitor 10nF, ±5%, 63V 25-10361-02 RAD/CAP/.300X.150/LS.200/.031

C508 ALU Electrolytic Capacitor 100uF/16V, 20%, 105� 06-10111-07 CPCYL1/D.300/LS.200/.031

C509 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C510 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C511 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C512 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C513 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031C514 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031

C517 ALU Electrolytic Capacitor 1000uF,10V,±20%, 105� 06-10211-05 CPCYL/D.400/LS.200/.031

C518 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C519 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C520 ALU Electrolytic Capacitor 10uF/50V, ±20%, 105� 06-10051-01 CPCYL1/D.200/LS.200/.031

C521 Polyester capacitor 100nF, ±5%, 63V 25-10461-07 RAD/CAP/.300X.150/LS.200/.031

JUMPERR551 Link L=5mm 21-06500-00 AX/.200X.080/.031

- 45 -

ELECTRICAL PARTS LIST

Page 46: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINT

CRYSTAL

X501 Crystal 11.0592MHz,CL=15pF,HC-49U/S

04-11102-00 CRYSTAL/.450X.200/LS.200/.031

CONNECTORX501 Crystal Washer (QW-3) 75-040001-0J501 Phone Jack SCJ340R0GBS0B00 J17-02001-02

FOR IC503 IC Socket DIP40 13-22540-00 DIP40

P501A WIRE UL2468#24AWG,L=240mm,10PIN

14-37510-01 BLKCON.100/VH/TM1SQ/W.200/10

P502A WIRE UL2468#24AWG,L=70mm,6PIN

14-37506-00 BLKCON.100/VH/TM1SQ/W.200/6

P503A WIRE UL2651#28AWG, L=580mm,20PIN

14-37520-00 BLKCON.100/VH/TM2OE/W.200/20

P504A WIREUL1007#24AWG &UL1691#24AWG,L=790mm,5PIN

14-37505-00 BLKCON.100/VH/TM1SQ/W.200/5

G501 Ground Solder Tap GND-8 32-28042-00

SWITCHS501 Tact Switch IT-1102A-1160 11-04101-05S502 Tact Switch IT-1102A-1160 11-04101-05S503 Tact Switch IT-1102A-1160 11-04101-05S504 Tact Switch IT-1102A-1160 11-04101-05S505 Tact Switch IT-1102A-1160 11-04101-05S506 Tact Switch IT-1102A-1160 11-04101-05S507 Tact Switch IT-1102A-1160 11-04101-05S508 Tact Switch IT-1102A-1160 11-04101-05S509 Tact Switch IT-1102A-1160 11-04101-05S510 Tact Switch IT-1102A-1160 11-04101-05S511 Tact Switch IT-1102A-1160 11-04101-05

P/N 01-37506-10 & 20 PCB6 BOARD (HS OPAMP STEREO)TRANSISTOR

Q601 MOSFET 2SK209 J31-00209-00 SM/SC59_SDGQ602 MOSFET 2SK209 J31-00209-00 SM/SC59_SDGQ603 Transistor 2SA1312 J31-01312-00 SM/SC59_BECQ604 Transistor 2SA1312 J31-01312-00 SM/SC59_BECQ605 Transistor 2SC3324 J31-03324-00 SM/SC59_BECQ606 Transistor 2SC3324 J31-03324-00 SM/SC59_BECQ607 Transistor 2SC3324 J31-03324-00 SM/SC59_BECQ608 Transistor 2SC3324 J31-03324-00 SM/SC59_BECQ609 Transistor 2SC2983 J31-02983-00 TO126/90/ECBQ610 Transistor 2SC2983 J31-02983-00 TO126/90/ECBQ611 Transistor 2SA1225 J31-01225-00 TO126/90/ECBQ612 Transistor 2SA1225 J31-01225-00 TO126/90/ECBQ613 Transistor 2SC3324 J31-03324-00 SM/SC59_BECQ614 Transistor 2SC3324 J31-03324-00 SM/SC59_BEC

RESISTORR601 Chip Resistor 1megΩ ,1/8W,±5% 07-90105-00 SM/R_0603R602 Chip Resistor 1megΩ ,1/8W,±5% 07-90105-00 SM/R_0603R603 Chip Resistor 220Ω ,1/8W,±5% 07-90221-00 SM/R_0603R604 Chip Resistor 220Ω ,1/8W,±5% 07-90221-00 SM/R_0603R605 Chip Resistor 1KΩ ,1/8W,±5% 07-90102-00 SM/R_0603R606 Chip Resistor 1KΩ ,1/8W,±5% 07-90102-00 SM/R_0603R607 Chip Resistor 1KΩ ,1/8W,±5% 07-90102-00 SM/R_0603R608 Chip Resistor 1KΩ ,1/8W,±5% 07-90102-00 SM/R_0603R609 Chip Resistor 1.5KΩ ,1/8W,±5% 07-90152-00 SM/R_0603R610 Chip Resistor 1.5KΩ ,1/8W,±5% 07-90152-00 SM/R_0603

- 46 -

ELECTRICAL PARTS LIST

Page 47: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINTR611 Chip Resistor 1KΩ ,1/8W,±5% 07-90102-00 SM/R_0603R612 Chip Resistor 1KΩ ,1/8W,±5% 07-90102-00 SM/R_0603R613 Chip Resistor 18KΩ ,1/8W,±5% 07-90183-00 SM/R_0603R614 Chip Resistor 18KΩ ,1/8W,±5% 07-90183-00 SM/R_0603R615 Chip Resistor 10Ω ,1/8W,±5% 07-90100-00 SM/R_0603R616 Chip Resistor 10Ω ,1/8W,±5% 07-90100-00 SM/R_0603R617 Chip Resistor 10Ω ,1/8W,±5% 07-90100-00 SM/R_0603R618 Chip Resistor 10Ω ,1/8W,±5% 07-90100-00 SM/R_0603R619 Chip Resistor 430Ω ,1/8W,±1% 07-94300-00 SM/R_0603R620 Chip Resistor 430Ω ,1/8W,±1% 07-94300-00 SM/R_0603R621 Chip Resistor 487Ω ,1/8W,±1% 07-94870-00 SM/R_0603R622 Chip Resistor 487Ω ,1/8W,±1% 07-94870-00 SM/R_0603R623 Chip Resistor 8.2KΩ ,1/8W,±1% 07-98201-00 SM/R_0603R625 Chip Resistor 150KΩ ,1/10W,±5% 07-90154-00 SM/R_0603R626 Chip Resistor 150KΩ ,1/10W,±5% 07-90154-00 SM/R_0603R627 Chip Resistor 100KΩ ,1/10W,±5% 07-90104-00 SM/R_0603R628 Chip Resistor 100KΩ ,1/10W,±5% 07-90104-00 SM/R_0603

CAPACTIORC601 Ceramic Chip Capacitor 22pF,50V,NPO 26-22051-00 SM/C_0603C602 Ceramic Chip Capacitor 22pF,50V,NPO 26-22051-00 SM/C_0603C603 Ceramic Chip Capacitor 47pF,50V,NPO 26-47051-00 SM/C_0603C604 Ceramic Chip Capacitor 47pF,50V,NPO 26-47051-00 SM/C_0603C605 Ceramic Chip Capacitor 1nF,50V,NPO 26-10251-10 SM/C_0603C606 Ceramic Chip Capacitor 1nF,50V,NPO 26-10251-10 SM/C_0603C607 Ceramic Chip Capacitor 100nF,50V,X7R 26-10451-10 SM/C_0603C608 Ceramic Chip Capacitor 100nF,50V,X7R 26-10451-10 SM/C_0603C609 Ceramic Chip Capacitor 100nF,50V,X7R 26-10451-10 SM/C_0603C610 Ceramic Chip Capacitor 100nF,50V,X7R 26-10451-10 SM/C_0603C611 Ceramic Chip Capacitor 47pF,50V,NPO 26-47051-00 SM/C_0603C613 Ceramic Chip Capacitor 1uF,25V,Y5V 26-10521-00 SM/C_0603C614 Ceramic Chip Capacitor 1uF,25V,Y5V 26-10521-00 SM/C_0603C617 Ceramic Chip Capacitor 220pF,50V,NPO 26-22151-00 SM/C_0603C618 Ceramic Chip Capacitor 220pF,50V,NPO 26-22151-00 SM/C_0603

CONNECTORP601A CONNECTOR 10PIN2.54 RIGHT ANGLE 13-12510-01 BLKCON.100/VH/TM1SQ/W.200/10

P/N 01-37507-00 PCB7 BOARD (RS232)RESISTOR

R701 Metal Film Resistor 100Ω, 1/6W, 5% 07-20101-50 AX/.200X.080/.031

CONNECTORJ701 DB9 Connector FEMALE DB9 FEMALE 17-08009-00 DSUB9M-RA-RS

P701A WIRE UL2468#24AWG,L=80mm,3PIN

14-37503-00 BLKCON.100/VH/TM1SQ/W.200/3

P702B HOUSING 3PIN2.54C 13-22503-00 BLKCON.100/VH/TM1SQ/W.200/3

P/N 01-37508-00 PCB8 BOARD (HEADPHONE)CONNECTOR

J801 Phone Jack 2P2.54-A150B 1569-26AWG 17-02001-00

P801A WIRE UL2468#24AWG,L=170mm,3PIN

14-37503-01 BLKCON.100/VH/TM1SQ/W.200/3

P/N 01-37512-00 PCB9 BOARD (BP BOARD)CONNECTOR

P901B CONNECTOR VH 3.96-6A 13-23906-00

Assembly PartsFUSE

FUSE T10AL/250V�AH� A20-12103-00

- 47 -

ELECTRICAL PARTS LIST

Page 48: NAD C375BEE service manual

DESIGNATOR DESCRIPTION PART TYPE PART NUMBER FOOTPRINTFUSE T5AL/250V�C� A20-12502-00

CONNECTORAC INLET to

SwitchWIRE UL1672#16AWG , red,

L=100mmA14-37501-00

Switch to Fuseholder

WIRE UL1672#16AWG , red,L=100mm

A14-37501-00

AC INLET to J401 WIRE UL1672#16AWG,blue,L=460mm

A14-37501-01

Fuse holder toJ402

WIRE UL1672#16AWG , red,L=380mm

A14-37501-02

- 48 -

ELECTRICAL PARTS LIST

Page 49: NAD C375BEE service manual

S011

S011

T001

S002

R009R008 R006

R004

S006

R007

R005 S002

R012R013

S002

S005

R001R011

R003R002S002

S013

R010

C012

S017

C005

C004

C006

S009

A005A002

S016

S015

S005

A001

A004

A003

S008

S009

S010C010

S004S003F022F002S002

F024F020S001F021

F016F012

F011S001

F003

F013

F014

F017

F001 F015

S012F009 F010

F006 F019 F005 S002 F004 S001

F018

F025

F008 F007

S002S003

S014

C003

C008

S002 C007

C011

C013

C002

S007

C001

S002

S003

C009

F023

S005 *C002 67-124010-0 Base Cover 1

*C003 67-124011-0 Shielding Box 1

*C004 67-124012-0 Shielding Box Cover 1

*C005 66-005007-0 Metal Disc 1*C006 94-124005-0 Transformer label 1*C010 69-005001-0 Copper Spacer 5

*C011

* All above parts must be ordered when replacing the maintransformer part number A18-37571-01 for all models with number series of:H8YC375BEEG00001 to 400 and H8YC375BEEG00810 to 1208

69-018001-0 Copper Spacer B 3

REF.NO PART NO. DESCRIPTION Qty.

A000

- 49 -

EXPLODED VIEW

Page 50: NAD C375BEE service manual

REF.NO PART NO. DESCRIPTION Qty. REF.NO PART NO. DESCRIPTION Qty.

01-37501-00 Poweramp Module Assembly 2 F013 77-062001-1 LED Lens Bezel 2

A001 70-124010-1 Main Heatsink 77-062011-1 LED Lens Bezel Ti:2

F003 J70-124002-0 End Cap L 1

J71-124014-0 Volume Knob Ti:1 S002 61-023106-0 Self Taping Screws STB3×6 35+3

22

A002 85-010001-0 Spacer 10 F014 76-062001-1 LED Lens 2

A003 66-018005-0 Thermal Switch Clamping 4 F015 76-076001-0 IR Lens 1

A004 78-124001-0 Insulated Cashion 4 F016 79-124003-0 CR Foam C 1

A005 02-37501-00 Poweramp Module Board NSP 2 F017 79-124002-0 CR Foam B 1

S005 61 023208 0 ×8 20 F018 79 124001 0 1Self Taping Screws BTB3 CR Foam A

S008 61-023212-0 Self Taping Screw BTB3×12 4 F019 79-062001-0 Rubber Pad 4

S009 61-023215-0 Self Taping Screw BTB3×15 10 F020 66-123003-0 Phone Bracket 1

S010 61-353515-0 Taptite Screw 3×15 16 F021 01-37505-00 Display Board 1

F022 01-37504-10 Standby Board AH:1

01-37504-20 Standby Board C:1C001 67-124004-2 Old Chassis 1

F023 01-37503-00 Tone Board 1

C002 67-124010-0 Base Cover 1 F024 01-37508-00 Headphone Board 1

C003 67-124011-0 Shielding Box 1 F025 16-37511-00 PCB Pad 2

C004 67-124012-0 Shielding Box Cover 1

C005 66-005007-0 Metal Disc 1 R001 67-124002-1A Rear Panel AH:1

C006 94-124005-0 Transformer label 1 67-124001-1A Rear Panel C:1

C007 75-124001-0 Foot 4 R002 67-124007-0 Rear Panel Plate 2

C008 J78-001002-0 Foot Pad 4 R003 66-010010-0 PCB Bracket 2

C009 73-003001-0 Rotate Knob 1 R004 17-03001-17 Binding Post(Black) 4

C010 69-005001-0 Copper Spacer 5 R005 17-03001-16 Binding Post(Red) 4

C011 69-018001-0 Copper Spacer B 3 R006 A17-07002-07 AC Inlet 1

C012 A18-37571-01 Main Transformer 1 R007 A17-07002-10 AC Outlet AH:1

C013 01-37502-00 Main Board 1 R008 JA20-20000-10 Fuse Holder 1

R009 A11-01101-03 Rocker Switch 1

R010 01-37512-00 BP Board 1F001 J70-124001-4A Fascia 1

R011 02-37507-00 RS232 Board 1J70-124011-4A Fascia Ti:1

R012 30-63200-00 Shorting Plug 2F002 67-124005-2 Subfascia 1 67-124005-3 New Subfasciafrom S/N greater than H9XC375BEEG04119 R013 30-63700-00 Shorting Plug 2

L

J70-124012-0 End Cap L Ti:1

T001 67-124003-1 Top Cover Graphite 67-124013-1 Top Cover Titanium

67-124003-2 Top Cover Graphite New

1

F004 J70-124003-0 End Cap R 167-124013-2 Top Cover Titanium New

Ti:1

J70-124013-0 End Cap R Ti:1 from S/N greater than H9XC375BEEG04119F005 J71-124004-0 Volume Knob 1 S001 61-023206-0 Self Taping Screws BTB3×6 19

i S T i S ×6

F006 J71-124003-0 Tone Knob 3 61-023106-1 Self Taping Screws STB3×6 Ti:3

J71-124013-0 Tone Knob Ti:3 S003 61-023506-0 Machine Screws MB3×6 18

F007 77-124003-0 Volume Knob Bezel 1 S004 61-023108-0 Self Taping Screws STB3×8 5

77-091013-1 Volume Knob Bezel Ti:1 S005 61-023208-0 Self Taping Screws BTB3×8 21

F008 77-124001-1 Tone Knob Bezel 1 S006 61-073108-0 Self Taping Screws STO3×8 2

77-124011-1 Tone Knob Bezel Ti:1 S007 61-373506-0 Machine Screw M3×6 2

F009 77-124002-2 2P Input Button Bezel 5 S011 61-084108-0 Self Taping Screws STPW4X8 6

77-124012-2 2P Input Button Bezel Ti:5 61-084106-2 Self Taping Screws STPW4X6 Ti:6

F010 J71-124002-0 2P Input Button 5 S012 61-022204-6 Self Taping Screws BTB2.6×4 2

J71-124012-0 2P Input Button Ti:5 S013 63-040506-1 Serrated Lock Washer 8

F011 77-124004-0 Power Button Bezel 1 S014 64-110080-1 Bolts,M10×80 1

77-123014-1 Power Button Bezel Ti:1 S015 63-011020-3 Washers 2

F012 J71-124001-0 Power Button 1 S016 63-021030-0 Spring Washers 1

J71-124011-0 Power Button Ti:1 S017 62-011002-0 Nut,M10 1

- 50 -

EXPLODED VIEW PARTS LIST

A000

67-124004-3 New Chassisfrom S/N greater than H9XC375BEEG04119

Page 51: NAD C375BEE service manual

4

1

5

7

3

6

8

910

2

11 12

REF.N0 Part No. Description Qty.1 00-37500-10 C375Bee AH Version AH:1

00-37500-20 C375Bee C Version C:100-37500-30 C375Bee CT Version CT:1

2 90-005002-3 Non-Woven Cloth 13 90-005001-0 Polybag 14 89-005002-5 Polyfoam End Cap(2) 15 89-005001-6 Polyfoam End Cap(1) 1

6 JA15-10125-01or A15-10125-00 AC Cord AH:1

JA15-10250-20 orA15-10250-00 AC Cord C/CT:1

7 90-001013-0 AC Cord Polybag 18 J30-17250-00 Remote Control 19 30-22100-10 Batteries 210 88-124001-0A Carton Box 111 30-43750-00 Instruction Manual 112 90-001002-0 Manu Polybag 1

- 51 -

PACKING DIAGRAM

Page 52: NAD C375BEE service manual

CIRCUIT CHANGE DATE

Improve Power Dissipation in Standby1) D403 changed from 8.2V to 4.7V2) Add D409 across IC402 pin1 and pin3, anode connect to pin33) D404 changed from 1N4007 to 1N5819, Reconnect D404 cathode from IC402 pin1 to pin34) R521 changed from 130ohms to 270ohms5) Add another 1N4007(D550) series in IC502 pin8 and D501 anode, D550's anode connect to D501's anode6) C517 changed from 1000uF/6.3V to 1000uF/10V, the purpose is SMPS ripple bigger than liner power supply, increase reliability

Dec. 03. 08

Improve the Q147 Power Dissipation1) R186 changed from 10K to 22K2) R187 changed from 510ohms to 2.2K

Dec. 10. 08

Improve fine adjustment of the volume by remote1) D551 added2) Change the interval delay time from 200ms to 100ms in software V1.5

Feb. 09. 09 Oct. 2009

VERSION HISTORY

Change Top Cover & Chassis for better fitfrom serial number: H9XC375BEEG04120

Change to 0.5W version and add +8V for MDC Oct. 2010

- 52 -

Page 53: NAD C375BEE service manual

CHANGE DETAILS: 1. Main board change to VM4.0. PCBA PN changed from 01-37502-00 to 01-37502-01. Below are the changes on this board. a. Add D229 and D232 diode 1N5404 b. Add C282 2200uF/25V electrolytic capacitor c. Add P217B socket d. Add P216B socket 2. Tone board. PCBA PN changed from 01-37503-00 to 01-37503-01. Below is the change on this board. a. R329 changed from 47ohms resistor to 5mm jumper wire. 3. Standby board change to VM3.0. PCBA part number changed from 01-37504-10 to 01-37504-11 for AH version and 01-37504-20 to 01-37504-21 for C version. Below are the changes on this board. a. D408 changed from 1N4148 to 1N4007 b. R401 changed from 68K resistor to TVS P6KE-200A c. IC402 regulator changed from LM7805 to LM7806 d. TR402 transformer change to PN: 22-01615-00 e. D410 diode 1N4148 added f. R406 10-ohm resistor added g. R407 3.6K resistor added h. R408 10K resistor added i. R405 22K resistor added j. IC403 TL431 added k. C411 10uF/50V electrolytic capacitor added l. D409 1N4148 diode removed m. D403 4.7V zener diode removed n. D402 1N5822 diode removed o. C403 10nF capacitor removed p. C406 220uF/16V electrolytic capacitor removed 4. Display board change to VM4.0. PCBA PN changed from 01-37505-00 to 01-37505-01. Below are the changes on this board. a. IC502 changed from CAT1021LI-42 to STC12C5A16S2-35C-LQFP44 b. IC501 changed from SP232EEP to SP3232EEN c. IC505 footprint changed from DIP16 to SO16 d. R521 changed from 270-ohm to 330-ohm e. R506 changed from 1K to 10K f. R508 changed from 10K to 1K g. R548 changed from 1K to 4.7K h. R551 changed from 5mm jumper wire to 10K resistor i. D501 changed from 1N4007 to 10mm jumper wire j. D551 changed from 1N5819 to 10mm jumper wire k. R510-R511 changed from 1K to 10K l. C514 100nF capacitor removed m. R501, R503, R504 and R528 10K resistor removed n. D550 1N5819 diode removed o. IC503 AT89S52-24PU and IC socket removed p. C508 100uF/16V electrolytic capacitor removed q. C521 and C522 100uF/16V electrolytic capacitor added r. J502 in circuit program socket added 5. Main transformer changed from (PN: JA18-37571-01) to (PN: JA18-37571-11). 6. Change rear panel to show <0.5W star logo. VERSION AH Version PN: 67-124002-1B C Version PN: 67-124001-1C

- 53 -

Page 54: NAD C375BEE service manual

OLD AND NEW PARTS COMPATIBILITY

1W C375 Version 0.5W C375 Version

1W Version VM2.0 PN: 01-37504-10 (AH) PN: 01-37504-20 (C)

Can not use otherwise standby power consumption will be higher than 0.5W

Standby Board

0.5W Version VM3.0 PN: 01-37504-11 (AH) PN: 01-37504-21(C)

Can be used after changing R407 from 3.6K to 6.8K

1W Version VM3.0 PN: 01-37505-00

Can not use otherwise standby power consumption will be higher than 0.5W

Display Board 0.5W Version VM4.0 PN: 01-37505-01

Can be used directly

1W Version VM2.0 PN: 01-37503-00

Can be used after changing R329 from 47ohms to 5mm jumper wire

Tone Board 0.5W Version VM2.0 PN: 01-37503-01

Can be used directly

1W Version VM3.0 PN: 01-37502-00

Not advisable because unit will lose the ability to accommodate MDC that requires 8.8V/0.3A supply

Main Board

0.5W Version VM4.0 PN: 01-37502-01

Can be used but unit still cannot accommodate MDC that requires 8.8V/0.3A supply

1W Version HA400 PN: JA18-37571-01

Not advisable because unit will lose the ability to accommodate MDC that requires 8.8V/0.3A supply

Main Transformer

0.5W Version HA400-A PN: JA18-37571-11

Can be used but unit still cannot accommodate MDC that requires 8.8V/0.3A supply

- 54 -

Page 55: NAD C375BEE service manual

/1KV

/1KV

/1KV

/1KV

/1KV

/1KV

/1KV

/1KV

/1KV

/1KV

/1KV

/1KV

MP R IN

LEFT

CD IN

LEFT

TUNER IN

LEFT

DISC/PHO

IN LEFT

AUX IN

LEFT

TAPE2 IN

LEFT

TAPE2 OUT

LEFT

TAPE1 IN

LEFT

TAPE1 OUT

LEFT

MP F IN

TO DISPLAY BOARD P701B

FR

OM

DIS

PL

AY

BO

AR

DP

702A

All Polyester capacitors are 63V 5% unless noted.

All Elec. capacitors are 50V 20% unless noted.

All Resistor are 1/6W 5% RJ13 unless noted.

TAPE2 OUT

RIGHT

TAPE1 IN

RIGHT

TAPE1 OUT

RIGHT

/1KV

MP R IN

RIGHT

/1KV

/1KV

/1KV

/1KV

CD IN

RIGHT

/1KV

/1KV

TUNER IN

RIGHT

/1KV

/1KV

DISC/PHO

IN RIGHT

AUX IN

RIGHT

TAPE2 IN

RIGHT

PREOUT1/2 RIGHT

PREOUT1/2 LEFT

FR

OM

RS

232

BO

AR

DP

S01A

/1KV

FR

OM

TO

NE

BO

AR

DP

301A

MAIN IN

RIGHT

MAIN IN

LEFT

BRIDGESTEREO POSITION

TO

L/R

PO

WE

RA

MP

BO

AR

DP

102B

/2W

/1%

/1%

TUNER

AUX

DISC

CD

TA

PE

2

MU

TE

TA

PE

1

CD

TU

NE

R

VID

EO

AU

X

DIS

C

IPO

D

VIDEO

IPOD

TAPE2

TAPE1

R1OUT

DGND

T1OUT

T1OUT

R1OUT

L OUT

R OUT

L IN

R IN

-26V+26V

+12VD

+12VD

+5VD

+12VD

-26V

+26V

SP A

MUTE

SP B

PROT

SCLED

IR IN

BRIDGE

IR OUT

MM/MC

EXTRA

PHONO L PHONO R

PHONO EN

T1OUT

R1OUT

R231

1meg

R231

1meg

R232

1meg

R232

1meg

R220

220

R220

220

RL206B

JRC-27F/012/S

RL206B

JRC-27F/012/S

6

7

8

R200

2.2K

R200

2.2K

RL204A

JRC-27F/012/S

RL204A

JRC-27F/012/S

3

4

5 RL204B

JRC-27F/012/S

RL204B

JRC-27F/012/S

6

7

8

D209

1N4148

D209

1N4148

C203

100pF

C203

100pF

RCA203EAV6-8.4-13RCA203EAV6-8.4-13

7

9

R217

220

R217

220

C216

100pF

C216

100pF

R243 68R243 68

RL209A

JRC-27F/012/S

RL209A

JRC-27F/012/S

3

4

5

+

C224

10uF+

C224

10uF

RL210C

JRC-27F/012/S

RL210C

JRC-27F/012/S

1

2

D206

1N4148

D206

1N4148

R247

100K

R247

100K

R234

1meg

R234

1meg

RCA202A

AV6-8.4-13

RCA202A

AV6-8.4-13

1

3

P203A

8P

IN2.5

4-A

200B

P203A

8P

IN2.5

4-A

200B2

3

4

1

5

6

7

8

RCA204A

AV6-8.4-13

RCA204A

AV6-8.4-13

1

3

RCA201F

AV6-8.4-13

RCA201F

AV6-8.4-13

8

9

C213

100pF

C213

100pF

R210

220

R210

220

R248

100K

R248

100K

C211

100pF

C211

100pF

RCA204D

AV6-8.4-13

RCA204D

AV6-8.4-13

5

6

R216

220

R216

220

RCA204E

AV6-8.4-13

RCA204E

AV6-8.4-13

7

9

RCA203C

AV6-8.4-13

RCA203C

AV6-8.4-13

4

6

RL210BJRC-27F/012/S

RL210BJRC-27F/012/S

6

7

8

RL201C

JRC-27F/012/S

RL201C

JRC-27F/012/S

1

2

RL206A

JRC-27F/012/S

RL206A

JRC-27F/012/S

3

4

5

C220

100pF

C220

100pF

R239

1meg

R239

1meg

P201B

5PIN2.54-C

P201B

5PIN2.54-C

1

2

3

4

5

+

-

+

-

L

R

Vcc Vss

GNDL GNDR

M201

HS OPAMP STEREO

+

-

+

-

L

R

Vcc Vss

GNDL GNDR

M201

HS OPAMP STEREO

9

8

7

10

6

15

2

3

4

RCA203F

AV6-8.4-13

RCA203F

AV6-8.4-13

8

9

R226

1meg

R226

1meg

R241

105K

R241

105K

+

C223

10uF

+

C223

10uF

P205B

CON2X10 MALE

P205B

CON2X10 MALE

1

5

3

6

2

4

7 8

9 10

11 12

13 14

15 16

17 18

19 20

R202

220

R202

220

CW

RV201B

1KA

CW

RV201B

1KA

64

5

RCA203BAV6-8.4-13RCA203BAV6-8.4-13

2

3

RL203C

JRC-27F/012/S

RL203C

JRC-27F/012/S

1

2

D207

1N4148

D207

1N4148

R238

1meg

R238

1meg

P204B

3P

IN2.5

4-C

P204B

3P

IN2.5

4-C1

2

3

R201

220

R201

220

RL208A

JRC-27F/012/S

RL208A

JRC-27F/012/S

3

4

5

C225

220pF

C225

220pF

R218

220

R218

220

RL205C

JRC-27F/012/S

RL205C

JRC-27F/012/S

1

2

RCA204F

AV6-8.4-13

RCA204F

AV6-8.4-13

8

9

C222

100nF

C222

100nF

RL207A

JRC-27F/012/S

RL207A

JRC-27F/012/S

3

4

5

R245

100K

R245

100K

C214

100pF

C214

100pF

C209

100pF

C209

100pF

R219

220

R219

220

R237

1meg

R237

1meg

D208

1N4148

D208

1N4148

D202

1N4148

D202

1N4148

R230

1meg

R230

1meg

C208

100pF

C208

100pF

RL208B

JRC-27F/012/S

RL208B

JRC-27F/012/S

6

7

8

RL206C

JRC-27F/012/S

RL206C

JRC-27F/012/S

1

2

C205

100pF

C205

100pF

C206

100pF

C206

100pFR225

1meg

R225

1meg

R215

220

R215

220

R203

220

R203

220

RCA201C

AV6-8.4-13

RCA201C

AV6-8.4-13

4

6

RCA204CAV6-8.4-13RCA204CAV6-8.4-13

4

6

RL203A

JRC-27F/012/S

RL203A

JRC-27F/012/S

3

4

5 RL203B

JRC-27F/012/S

RL203B

JRC-27F/012/S

6

7

8

C218

100pF

C218

100pF

C202

100pF

C202

100pF

C201

100pF

C201

100pF

RCA201B

AV6-8.4-13

RCA201B

AV6-8.4-13

2

3

P202B

11P

IN2.5

4-C

P202B

11P

IN2.5

4-C

1

2

3

4

5

6

7

8

9

10

11

R242

105K

R242

105K

R221

1meg

R221

1meg

R235

1meg

R235

1meg

C217

100pF

C217

100pF

R211

220

R211

220

RL207C

JRC-27F/012/S

RL207C

JRC-27F/012/S

1

2

C210

100pF

C210

100pF

RL205A

JRC-27F/012/S

RL205A

JRC-27F/012/S

3

4

5 RL205B

JRC-27F/012/S

RL205B

JRC-27F/012/S

6

7

8

R233

1meg

R233

1meg

R236

1meg

R236

1meg

R224

1meg

R224

1meg

R240

1meg

R240

1meg

RCA203AAV6-8.4-13RCA203AAV6-8.4-13

1

3

RCA201AAV6-8.4-13RCA201A

AV6-8.4-13

1

3

C226

220pF

C226

220pF

S202B

SK-22F03-G7

S202B

SK-22F03-G7

4

5

6

C221

100nF

C221

100nF

RL209CJRC-27F/012/S

RL209CJRC-27F/012/S

1

2

RCA202F

AV6-8.4-13

RCA202F

AV6-8.4-13

8

9

C219

100pF

C219

100pF

R223

1meg

R223

1meg

R213

220

R213

220

D203

1N4148

D203

1N4148

R229

1meg

R229

1meg

R228

1meg

R228

1meg

RCA201D

AV6-8.4-13

RCA201D

AV6-8.4-13

5

6

RL202C

JRC-27F/012/S

RL202C

JRC-27F/012/S

1

2

RCA202C

AV6-8.4-13

RCA202C

AV6-8.4-13

4

6

R206

220

R206

220

R246

100K

R246

100K

R209

220

R209

220

RL209B

JRC-27F/012/S

RL209B

JRC-27F/012/S

6

7

8

R222

1meg

R222

1meg

C215

100pF

C215

100pF

R227

1meg

R227

1meg

D204

1N4148

D204

1N4148

R204

220

R204

220

R205

220

R205

220

RL204C

JRC-27F/012/S

RL204C

JRC-27F/012/S

1

2

CW

RV201A

1KA

CW

RV201A

1KA

31

2

C207

100pF

C207

100pF

C204

100pF

C204

100pF

R212

220

R212

220

RCA202DAV6-8.4-13RCA202DAV6-8.4-13

5

6

R207

220

R207

220

RL208C

JRC-27F/012/S

RL208C

JRC-27F/012/S

1

2

RCA204B

AV6-8.4-13

RCA204B

AV6-8.4-13

2

3

RCA203DAV6-8.4-13RCA203DAV6-8.4-13

5

6

R244 68R244 68

RCA202EAV6-8.4-13RCA202E

AV6-8.4-13

7

9

RL210A

JRC-27F/012/S

RL210A

JRC-27F/012/S

3

4

5

D201

1N4148

D201

1N4148

RCA201E

AV6-8.4-13

RCA201E

AV6-8.4-13

7

9

D205

1N4148

D205

1N4148

RCA202B

AV6-8.4-13

RCA202B

AV6-8.4-13

2

3

RL202A

JRC-27F/012/S

RL202A

JRC-27F/012/S

3

4

5 RL202B

JRC-27F/012/S

RL202B

JRC-27F/012/S

6

7

8

RL207B

JRC-27F/012/S

RL207B

JRC-27F/012/S

6

7

8

R208

220

R208

220

RL201A

JRC-27F/012/S

RL201A

JRC-27F/012/S

3

4

5 RL201B

JRC-27F/012/S

RL201B

JRC-27F/012/S

6

7

8

C212

100pF

C212

100pF

R214

220

R214

220

MAIN BOARDPREAMP & INPUT SELECT

- 55 -

Page 56: NAD C375BEE service manual

/1%

/16V

/1%

/1%

/1%

/5%

/5%

/5%

/5%

/1%

/1%

TONE DEFEAT RELAY

All Polyester capacitors are 63V 5% unless noted.

All Elec. capacitors are 50V 20% unless noted.

All Resistor are 1/6W 5% RJ13 unless noted.

BA

LA

NC

EV O L

UM

EC

O NT

R

OL

/1KV

/1KV

BA

LA

NC

E

/1%

/16V

/1%

/1%

/1%

/5%

/5%

/5%

/5%

/1%

/1%

V O LU

ME

C

O NT

R

OL

TONE DEFEAT RELAY

/25V

/25V

FR

OM

MA

INB

OA

RD

P202B

FR

OM

DIS

PA

Y

BO

AR

DP

501A

/1K

V/1

KV

VOL-

VOL+

TONE

BRIDGE

IR IN

IR OUT

+26V -26V

+5.6V

+5.2V

+26V

+26V

-26V

C321

100nF

C321

100nF

R304

47

R304

47

R301

75K

R301

75K

+

C323

10uF

+

C323

10uF

R314

51K

R314

51K

R307732

R307732

CW

RV305

10K

CW

RV305

10K

1 3

2

C309

220nF

C309

220nFCW

RV

301A

RK

163121A

2C

A10K

AX

2

CW

RV

301A

RK

163121A

2C

A10K

AX

23

1

2

C305

22nF

C305

22nF

CW

RV

302B

RK

163121A

2C

A10K

AX

2

CW

RV

302B

RK

163121A

2C

A10K

AX

2

64

5

P301A

11PIN2.54-A80B

P301A

11PIN2.54-A80B

2

3

4

1

5

6

7

8

9

10

11

C329

470pF

C329

470pF

R308732

R308732

R310

390

R310

390

D3011N4148

D3011N4148

Q3022SC1815

Q3022SC1815

RL301C

JRC-27F/005/S

RL301C

JRC-27F/005/S

1

2

Q303

2SA1015

Q303

2SA1015

RL301A

JRC-27F/012/S

RL301A

JRC-27F/012/S

3

4

5

C317

100nF

C317

100nF

R305

3.3

K

R305

3.3

K

R311

180

R311

180

C310

220nF

C310

220nFCW

RV

301B

RK

163121A

2C

A10K

AX

2

CW

RV

301B

RK

163121A

2C

A10K

AX

26

4

5

C307

100nF

C307

100nF

R303

47

R303

47

+

C316

N.I.+

C316

N.I.

+C320

220uF

+C320

220uF

CW

RV

303A

RK

16812M

GA

10(2

0K

BX

2)

CW

RV

303A

RK

16812M

GA

10(2

0K

BX

2)

61

45

R315

N.I.

R315

N.I.

R317

1.5K

R317

1.5K

C308

100nF

C308

100nF

R324

2.2K

R324

2.2K

CW

RV

302A

RK

163121A

2C

A10K

AX

2

CW

RV

302A

RK

163121A

2C

A10K

AX

2

31

2

C318

100nF

C318

100nF

+

C301

100uF

+

C301

100uF

R322

4.7K

R322

4.7K

C312

1uF

C312

1uF

R326

2.2K

R326

2.2K

R316

N.I.

R316

N.I.

CW

RV306

10K

CW

RV306

10K

1 3

2

C322

100nF

C322

100nF

CW

RV307

100

CW

RV307

100

13

2

C326

100nF

C326

100nF

R309

390

R309

390

C304

100nF

C304

100nF

R325

2.2K

R325

2.2K

CW

RV

304B

RK

16312A

10D

20K

MN

X2

CW

RV

304B

RK

16312A

10D

20K

MN

X2

64

5

CW

RV308

100

CW

RV308

100

13

2

R320

390

R320

390

C303

100nF

C303

100nF

Q304

2SC1815

Q304

2SC1815

+

-

+

-

L

R

Vcc Vss

GNDL GNDR

M301

HS OPAMP STEREO

+

-

+

-

L

R

Vcc Vss

GNDL GNDR

M301

HS OPAMP STEREO

9

8

7

10

6

15

2

3

4

R302

75K

R302

75K

R312

180

R312

180

R321

4.7K

R321

4.7KC

330

470pF

C330

470pF

+

C315

N.I.

+

C315

N.I.

+

C302

100uF

+

C302

100uF

R333

47

R333

47

+

C324

10uF

+

C324

10uF

R306

3.3

K

R306

3.3

K

Q301

2SA1015

Q301

2SA1015

C327

4.7uF

C327

4.7uF

+

C325

10uF

+

C325

10uF

CW

RV

303B

RK

16812M

GA

10(2

0K

BX

2)

CW

RV

303B

RK

16812M

GA

10(2

0K

BX

2)

73

28

R318

1.5K

R318

1.5K

RL301B

JRC-27F/012/S

RL301B

JRC-27F/012/S

6

7

8

+C319

220uF

+C319

220uF

C313

220pF

C313

220pF

P302B

10PIN2.54-C

P302B

10PIN2.54-C

1

2

3

4

5

6

7

8

9

10

C311

1uF

C311

1uF

R313

51K

R313

51K

C306

22nF

C306

22nF

CWR

V304A

RK

16312A

10D

20K

MN

X2

CWR

V304A

RK

16312A

10D

20K

MN

X2

31

2

R319

390

R319

390

R334

47

R334

47

A -+

RV303C

RK16812MGA10(20KBX2)

A -+

RV303C

RK16812MGA10(20KBX2)

+ -

R327

2.2K

R327

2.2K

R329

0

R329

0

R328

2.2K

R328

2.2K

R323

2.2K

R323

2.2K

C314

220pF

C314

220pF

TONE CONTROL

- 56 -

Page 57: NAD C375BEE service manual

All Polyester capacitors are 63V 5% unless noted.

All Elec. capacitors are 50V 20% unless noted.

All Resistor are 1/6W 5% RJ13 unless noted.

All Zener diode are 1/2W unless noted.

W403 ONLY FOR C VERSIONW401&W402 ONLY FOR AH VERSION

NEUTRAL

LIVE

TO DISPLAY BOARD

FROM MAIN TRANSFORMER

TO MAIN TRANSFORMER

/XType

/400V

Assem

ble

inth

eR

ear

Pan

el

/10V

/Y Type

/16V

FOR IC402

Or HF115F 005-1HS3A TV-5

Only for 120V Version

/1% /1%

+4.65V in Standby Mode

+5.2V in Active Mode

THERMAL PROT

STBY

DGND

+5.2V

+12V

AGND

+5.2VD

+5.2VD~

~

+-

BR401

DB105

~

~

+-

BR401

DB105

IC401

TNY274PN

IC401

TNY274PN

S6

BP/M2

D4

S5

S8

S7

EN/UV1

R401

N.I.

R401

N.I.

TR402

EE16

TR402

EE16

4

5

8

6

2

1

W401

15m

mJU

MP

ER

W401

15m

mJU

MP

ER

12

D404

1N5819

D404

1N5819

J402

KY187

J402

KY187

1 2

C409

100nF

C409

100nF

D401

FR107

D401

FR107C401

100nFC401

100nF

P402B

6PIN2.54-C

P402B

6PIN2.54-C

1

2

3

4

5

6

R404

150

R404

150

C407

100nF

C407

100nF

TR

401

Com

Inducto

r

TR

401

Com

Inducto

r

13

25

P404B

4PIN7.92-C

P404B

4PIN7.92-C

1

5

7

3

R40610R40610

RL401

DH1U5VDC TV-8

RL401

DH1U5VDC TV-8

3

4

1

2

S1

RF

-1003-B

B2,10A

250V

,T

V-5

S1

RF

-1003-B

B2,10A

250V

,T

V-5

12

IC402

LM7806CT

IC402

LM7806CT

O3

I1

G2

C405

1nF

C405

1nF

C404

100nF

C404

100nF

W402

15m

mJU

MP

ER

W402

15m

mJU

MP

ER

12

R407

3.6K

R407

3.6K

R403

510

R403

510

+

C408

220uF

+

C408

220uF

L401

10uH

L401

10uH

R408

10K

R408

10K

+

C410

220uF

+

C410

220uF

F401

T1AL/250V

F401

T1AL/250V

U1

AC INLET

U1

AC INLET

1 2

D4061N4148

D4061N4148

U2

ACOUTLET

U2

ACOUTLET

1

2

J401

KY250

J401

KY250

1 2

C403

N.I.

C403

N.I.

D4101N4148

D4101N4148

D408

1N4007

D408

1N4007

D4051N4007

D4051N4007

+

C411

10uF

+

C411

10uF

W403

15m

mJU

MP

ER

W403

15m

mJU

MP

ER

12

D402

P6KE200A

D402

P6KE200A

P403B

2PIN3.96-C

P403B

2PIN3.96-C

1

2

IC403

TL431

IC403

TL431

23

1

D4071N4148

D4071N4148

+

C402

10uF

+

C402

10uF

R405

22K

R405

22K

R402

100

R402

100

HS401

HEATSINK

HS401

HEATSINK

PC401

PC817A

PC401

PC817A

1

2

4

3

STANDBY

- 57 -

Page 58: NAD C375BEE service manual

1

/100V/100V

/250V

/100V/100V

/250V

/100V

/100V

FR

OM

MA

INT

RA

NS

FO

RM

ER

/250V

/250V

FR

OM

MA

INT

RA

NS

FO

RM

ER

/16V

/16V

TO

LE

FT

PO

WE

RA

MP

TO

RIG

HT

PO

WE

RA

MP

/1%

/1%

/1%

/1%

/1%

/1%

/1/2W

/1/2W

SOFT CLIPPING

/100V

BRIDGE

TRIGGER OUT

/1/4W

/16V

/1/2W

/2W

IR IN

STEREO POSITIONNORMAL POSITION

TO

PH

ON

O/A

CC

ES

SO

RY

MO

DU

LE

TO

HE

AD

PH

ON

EB

OA

RD

/2W

/160V

/160V

/250V

/250V

FOR BR201&TH201 FOR BR202&TH202

FOR IC201&IC202 FOR IC203&IC204

/2W

/2W

/1W

/1W

/1%

/1%

/1%

/1%

/63V

/63V

IR OUT

FOR Q214

/1%

/1%

/1%

/1%

/1%/1%

SP

EA

KE

RA

SP

EA

KE

RB

FOR Q206&Q216

FROM RS232 BOARD

/25V

/1K

V

TO

Ex

ten

dM

od

ule

VCC

ISC

BR L

SCN/MUTE

PROTECT L

SCP

ISC

RELAY

SCN/MUTE

PROTECT R

SCP

L O/P

R O/P

SP B

SP A

VSS

BR R

+26V

-80V

+80V

+15V

+80V

-80V

+15V

-15V

+80V

-80V

+15V

-15V

VCC

VSS

-15V

-26V

-26V

+36V

+26V

+36V

+36V

+12VD

+26V

+36V

+5VD

+26V

+5VD

+18V

+18V

-26V

+8.8V

+8.8V

SCLED

MUTE

IR OUT

SP B

SP A

BRIDGE

PROT

MM/MC

PHONO L

PHONO R

PHONO EN

EXTRA

IR IN

+

C242

2200uF

+

C242

2200uF

+

C274

10uF

+

C274

10uF

D218

1N4148

D218

1N4148

HS203

70-004003-1

HS203

70-004003-1

D215

13V

D215

13V

PAD2

Solder Pad

PAD2

Solder Pad

PAD5

Solder Pad

PAD5

Solder Pad

~

~

+-

BR202

KBU8D

~

~

+-

BR202

KBU8D

+

C272

10uF

+

C272

10uF

P211A

11PIN2.54-A130B

P211A

11PIN2.54-A130B

2

3

4

1

5

6

7

8

9

10

11

Q211

2SC1815

Q211

2SC1815

HS205

70-004003-1

HS205

70-004003-1

R2A1

1K

R2A1

1K

+C259

1uF

+C259

1uF

RL215B

JRC-27F/036/S

RL215B

JRC-27F/036/S

6

7

8

R292

4.7K

R292

4.7K

+

C248

10uF

+

C248

10uF

R250

22K

R250

22K

PAD3

Solder Pad

PAD3

Solder Pad

D231

1N4148

D231

1N4148

R2E

4

240

R2E

4

240

C276

100nF

C276

100nF

D220

1N4148

D220

1N4148

IC206

CD74HC86E

IC206

CD74HC86E

3B10

4B13

4A12

4Y11

3Y8 2Y

6

GND7

2B5

1A1

1B2

1Y3

2A4

3A9

VCC14

P207B

5PIN3.96-C

P207B

5PIN3.96-C

1

2

4

5

3

R286

10

R286

10

D225

1N4007

D225

1N4007

R275

22K

R275

22K

C270

10nF

C270

10nF

R2E

3

2.6

7K

R2E

3

2.6

7K

R289

4.7K

R289

4.7K

L201

1uH

L201

1uH

RL211A

JQX-115F/036/1HS1

RL211A

JQX-115F/036/1HS1

3

4

Q204

MPSA42

Q204

MPSA42

S202A

SK-22F03-G7

S202A

SK-22F03-G7

1

2

3

PAD4

Solder Pad

PAD4

Solder Pad

D222

15V

D222

15V

+

C2814.7uF

+

C2814.7uF

IC201NJM317F

IC201NJM317F

O2

I3

AD

J1

RL212A

JQX-115F/036/1HS1

RL212A

JQX-115F/036/1HS1

3

4

D211

1N4148

D211

1N4148

HS204

70-004003-1

HS204

70-004003-1

C228

10nFC228

10nF

R259

4.7K

R259

4.7K

R2A6

47K

R2A6

47K

C243

100nF

C243

100nF

R2A4

10K

R2A4

10K

R282

3.3

R282

3.3

R258

4.7K

R258

4.7K

+

C241

2200uF

+

C241

2200uF

RL213A

JQX-115F/036/1HS1

RL213A

JQX-115F/036/1HS1

3

4

R263

4.7K

R263

4.7K

+

C234

22000uF

+

C234

22000uF

C266

N.I.

C266

N.I.

Q206

2SC4793

Q206

2SC4793

RL213B

JQX-115F/036/1HS1

RL213B

JQX-115F/036/1HS1

1

2

F202

MF-R075/90U-0-99

F202

MF-R075/90U-0-99

R254

1K

R254

1K

D223

1N4007

D223

1N4007

+

C282

2200uF

+

C282

2200uF

RL214B

JQX-115F/036/1HS1

RL214B

JQX-115F/036/1HS1

1

2

Q212

2SA1015

Q212

2SA1015

S201

SK-22F03-G7

S201

SK-22F03-G7

5

6

4 1

2

3

P206B

5PIN3.96-C

P206B

5PIN3.96-C

1

2

4

5

3

C239

10nFC

239

10nF

R2E6

2.2K

R2E6

2.2K

R267

24.9K

R267

24.9K

RL214A

JQX-115F/036/1HS1

RL214A

JQX-115F/036/1HS1

3

4

D232

1N

5404

D232

1N

5404

C250

100nF

C250

100nF

R279

100

R279

100

+

C247

10uF

+

C247

10uF

+

C261

330uF

+

C261

330uF

R2E5

100

R2E5

100

Q213

2SC1815

Q213

2SC1815

~

~

+-

BR203

DB104G

~

~

+-

BR203

DB104G

TH201

BT151-500R

TH201

BT151-500R

3

12

IC205

HS1237

IC205

HS1237

12 3

4

5

6

7

8

D210

1N4007

D210

1N4007

R299

4.7K

R299

4.7K

Q2022SA1015

Q2022SA1015

R273

2.2K

R273

2.2K

R268

24.9K

R268

24.9K

C279

10uF

C279

10uF

R255

100

R255

100

+

C271

47uF

+

C271

47uF

C264

10uF

C264

10uF

R2E

1

2.6

7K

R2E

1

2.6

7K

C249

100nF

C249

100nF

R265

56K

R265

56K

Q216

IRF5210

Q216

IRF5210

IC202

LM337T

IC202

LM337T

O3

I2

AD

J1

C231

100nF

C231

100nF

+

C275

10uF

+

C275

10uF

R2E7

10K

R2E7

10K

C265

N.I.

C265

N.I.

C232

100nF

C232

100nF

R264

N.I.

R264

N.I.

+

C229

10uF

+

C229

10uF

C262

220nF

C262

220nF

R296

10K

R296

10K

R280

270

R280

270

D224

1N4007

D224

1N4007

IC203

NJM317F

IC203

NJM317F

O2

I3

AD

J1

R252

1K

R252

1K

R262

220K

R262

220K

C227

10nFC

227

10nF

C290

100nF

C290

100nF

+

C260

100uF

+

C260

100uF

R298

10K

R298

10K

J201

PY301-030-100-RS

J201

PY301-030-100-RS

R269

1K

R269

1K

R278

33K

R278

33K

R266

56K

R266

56K

J202B

SCJ351P00XS0B00

J202B

SCJ351P00XS0B00

21

25

C253

100nF

C253

100nF

P214B

FLEX DIP12

P214B

FLEX DIP12

1

2

3

4

5

6

7

8

9

10

11

12

D227

1N4007

D227

1N4007

R261

240

R261

240

D219

1N4148

D219

1N4148

R270

1K

R270

1K

TH202

BT151-500R

TH202

BT151-500R

3

1 2

C273

10nF

C273

10nF

R297

1K

R297

1K

D226

1N4007

D226

1N4007

P216B

2PIN2.54-C

P216B

2PIN2.54-C

1

2

+

C251

10uF

+

C251

10uF

R2E

2

240

R2E

2

240

R294

820

R294

820

RL215A

JRC-27F/036/S

RL215A

JRC-27F/036/S

3

4

5

R288

4.99K

R288

4.99K

P212A

11PIN2.54-A130B

P212A

11PIN2.54-A130B

2

3

4

1

5

6

7

8

9

10

11

+C291

10uF

+C291

10uF

Q214

KSC2690

Q214

KSC2690

R2E8

15K

R2E8

15K

+

C256

1000uF

+

C256

1000uF

R257

100

R257

100

P213B

FLEX DIP12

P213B

FLEX DIP12

1

2

3

4

5

6

7

8

9

10

11

12

C235

100pF

C235

100pF

D228

1N4148

D228

1N4148

P210A

5PIN3.96-AxxB

P210A

5PIN3.96-AxxB

1

2

3

4

5

G2G1

Ground Solder Tap

G2G1

Ground Solder Tap

1

R271

1K

R271

1K

Q203

MPSA92

Q203

MPSA92

Q205

2SC1815

Q205

2SC1815

R295

10K

R295

10K

Q2092SC1815

Q2092SC1815

R287

10

R287

10

P217B

2PIN3.96-C

P217B

2PIN3.96-C

1

2

~

~

+-

BR204

DB104G

~

~

+-

BR204

DB104G

C244

100nF

C244

100nF

D216

1N4148

D216

1N4148

R2A7

330

R2A7

330

RL212B

JQX-115F/036/1HS1

RL212B

JQX-115F/036/1HS1

1

2

R284

270

R284

270

R256

1K

R256

1K

R2A3

33

R2A3

33

HS201

70-004003-1

HS201

70-004003-1

+

C255

1000uF

+

C255

1000uF

R251

22K

R251

22K

R291

4.7K

R291

4.7K

D214

1N4148

D214

1N4148

C268

N.I.

C268

N.I.

RL215C

JRC-27F/036/S

RL215C

JRC-27F/036/S

1

2

C269

10nF

C269

10nF

R283

3.3

R283

3.3

R260

240

R260

240

R2G1

0

R2G1

0

+

C246

10uF

+

C246

10uF

RL211B

JQX-115F/036/1HS1

RL211B

JQX-115F/036/1HS1

1

2

P215B

3PIN2.54-C

P215B

3PIN2.54-C

1

2

3

R272

1K

R272

1K

Q207

2SC1815

Q207

2SC1815

R249

10K

R249

10K

Q201

2SC1815

Q201

2SC1815

D229

1N5404

D229

1N5404

R2A5

10

R2A5

10

D230

1N4148

D230

1N4148

C254

100nF

C254

100nF

HS202

70-004003-1

HS202

70-004003-1

C258

100nFC258

100nF

R277

150K

R277

150K

Q215

2SC1815

Q215

2SC1815

D221

1N4148

D221

1N4148

IC204

LM337T

IC204

LM337T

O3

I2

AD

J1

R2A2

1K

R2A2

1K

~

~

+-

BR201

KBU8D

~

~

+-

BR201

KBU8D

C257

100nFC

257

100nF

F201

MF-R075/90U-0-99

F201

MF-R075/90U-0-99

Q208

2SA1015

Q208

2SA1015

L202

1uH

L202

1uH

D213

24V

D213

24V

C240

10nFC240

10nF

R293

180

R293

180

+

C263

10uF

+

C263

10uF

+

C230

10uF

+

C230

10uF

+

C252

10uF

+

C252

10uF

+

C277

1000uF

+

C277

1000uF

R285

6.8K

R285

6.8K

R253

1K

R253

1K

J202A

SCJ351P00XS0B00

J202A

SCJ351P00XS0B00

1

4

5

R276

82K

R276

82K

+

C278

1000uF

+

C278

1000uF

Q2102SC1815

Q2102SC1815

F203

MF-R075/90U-0-99

F203

MF-R075/90U-0-99

+

C245

10uF

+

C245

10uF

D212

24V

D212

24V

D217

1N4148

D217

1N4148

PAD6

Solder Pad

PAD6

Solder Pad

PAD1

Solder Pad

PAD1

Solder Pad

R281

270

R281

270

HS206

HEATSINK

HS206

HEATSINK

C267

N.I.

C267

N.I.

C280

N.I.

C280

N.I.

+

C233

22000uF

+

C233

22000uF

P208B

3PIN2.54-C

P208B

3PIN2.54-C

1

2

3

P209A

5PIN3.96-AxxB

P209A

5PIN3.96-AxxB

1

2

3

4

5

R274

150K

R274

150K

PSU

All Polyester capacitors are 63V 5% unless noted.All Elec. capacitors are 50V 20% unless noted.All Resistor are 1/6W 5% RJ13 unless noted.

- 58 -

SCHEMATICS DIAGRAM PSU (WITH MDC +8.8V SUPPORT)

Page 59: NAD C375BEE service manual

SP A SP B MP TUNER AUXCD DISC

All Polyester capacitors are 63V 5% unless noted.

All Elec. capacitors are 50V 20% unless noted.

All Resistor are 1/6W 5% RJ13 unless noted.

TO MAIN BOARD P205B

TO

MA

INB

OA

RD

P2

01

B

TAPE1TAPE2 TONE

TO

TO

NE

BO

AR

DP

30

2B

POWER

TO

STA

ND

BY

BO

AR

DP

40

2B

IPO

DIN

PU

T

/1KV /1KV

SC

BR

SPA

SPB MP/R MP/F

CD

TUNER

DISC PHONO

AUX

TAPE2

TAPE1

TONE

IRR

ec

eiv

er

/10V/16V

/16V

MP

R

P0.6

AU

X

CD

P0.2

P2.1

TA

PE

2

P2.0

TA

PE

1

P0.5

TU

NE

R

P2.2

DIS

C

P0.3

P0.4

TXD

+5VD

DGND

T1OUT

R1IN

RXD

VO

L-

VO

L+

P1.2

P1.3

RXD

TXD

IR OUT

IR IN

P3.6

P3.7

IR OUT

BRIDGE

VOL-

IR IN

P2.0

P2.1

P2.2

P0.7

P0.6

P0.5

P0.4

P0.3

P0.2

P0.1

P0.0

P2.3

P2.7

P2.6

P2.7

P2.6

P0.7

P2.4

P2.5

VOL+

EXTRA

R1IN

CD

MP F

TAPE2

TAPE1

DISC

MP R

P/EN

MM/MC

T1OUT

MUTE

+5VD

SP A

SP B

PROTECT

SCLED

TUNER

TONE

P2.3

P2.4

P2.5

+5VD

IR OUT

STBY

TP

TP

PROT

P/EN

P3.5

BR

IDG

E

SC

LE

D

P3.7

P1.3

IR IN

AUX+5VD

OE

SCL

P0.1

P3.5

AMBER

BLUE

RED

AMBER

BLUE

RED

EXTRA

PHONO

SP B

SP A

P1.2

P1.3

PH

ON

O

P2.7

P2.0

P2.1

P2.2

P2.3

P2.4

P2.5

P2.6

P0.7

P0.0

P0.1

P0.2

P0.3

P0.4

P0.5

P0.6

STBY

TONE

P0.5

PROTECT PROT

P3.7

MP

F

P3.6

SP

A

SP

B

MU

TE

MM/MC

FLICKER

P0.0

OSC2

OSC1

RST

RST

+5V

D

DG

ND

DGND

RXD

TXD

+5VD

OS

C1

OS

C2

FLIC

KE

R

SCL

OE

+12V

+5VD +5VS +5VD

+5VS

+5VD

+5VS

+5VD

+5VD

+5VD

+12V

+26V

+12V

C504 100nFC504 100nF

Q542

2S

C1815

Q542

2S

C1815

R545

1K

R545

1K

R535

1K

R535

1K

+

C521

100uF

+

C521

100uF

C513

100nF

C513

100nF

D546

1N4148

D546

1N4148

Q544

2S

C1815

Q544

2S

C1815

Q507

2S

A1015

Q507

2S

A1015

C509

100nF

C509

100nF

Q530

2SA1015

Q530

2SA1015

D532

1N4148

D532

1N4148

G501

GND-8

G501

GND-8

1

R521

330

R521

330

Q540

2S

C1815

Q540

2S

C1815

R51010Kx8R510

10Kx8

1 2

3

4

5

6

7

8

9

D551 10mm JumperD551 10mm Jumper

Q533

2SD667

Q533

2SD667

Q506

2S

A1015

Q506

2S

A1015

Q504

2S

A1015

Q504

2S

A1015

Q536

2S

C1815

Q536

2S

C1815

Q547

2S

C1815

Q547

2S

C1815

S506

IT-1102D-1160

S506

IT-1102D-1160

12

Q529

2S

A1015

Q529

2S

A1015

Q525

DT

C114E

SA

Q525

DT

C114E

SA

C505

22pF

C505

22pF

R508

1K

R508

1K

D533

1N4148

D533

1N4148

R565

10

R565

10

R564

4.7K

R564

4.7K

D517

1N4148

D517

1N4148

R563

4.7K

R563

4.7K

Q522

DTA

114E

SA

Q522

DTA

114E

SA

S507

IT-1102D-1160

S507

IT-1102D-1160

12

R550

4.7K

R550

4.7K

Q534

2SC1815

Q534

2SC1815

D542

1N4148

D542

1N4148

D514

BL-B

B52V

1

D514

BL-B

B52V

1

R531

56

R531

56

Q5022SC1815

Q5022SC1815

S504

IT-1102D-1160

S504

IT-1102D-1160

12

D506

BL-B

B52V

1

D506

BL-B

B52V

1

Q546

2S

C1815

Q546

2S

C1815

Q503

2S

A1015

Q503

2S

A1015

Q532

2SA1015

Q532

2SA1015

C510

100nF

C510

100nF

D547

1N4148

D547

1N4148

R557

4.7K

R557

4.7K

Q524

DTA

114E

SA

Q524

DTA

114E

SA

S501

IT-1102D-1160

S501

IT-1102D-1160

12

R555

4.7K

R555

4.7K

R512

10K

R512

10K

R556

4.7K

R556

4.7K

R502

1K

R502

1K

D536

1N4148

D536

1N4148

R572

4.7K

R572

4.7K

S508

IT-1102D-1160

S508

IT-1102D-1160

12

D501

10mm Jumper

D501

10mm Jumper

D507

BL-B

B52V

1

D507

BL-B

B52V

1

+

C519

10uF

+

C519

10uF

C503 100nFC503 100nF

D518

1N4148

D518

1N4148

R514

56

R514

56

C506

22pF

C506

22pF

R559

4.7K

R559

4.7K

R540

1K

R540

1K

D512

BL-BB5B5201-B

D512

BL-BB5B5201-B

D503

1N4148

D503

1N4148

R513

56

R513

56

IC501

SP232EEP

IC501

SP232EEP

C1+1

V+2

C1-3

C2+4

C2-5

V-6

T2OUT7

R2IN8

VCC16

R2OUT9T2IN10T1IN11R1OUT12R1IN13T1OUT14GND15

R542

1K

R542

1K

R509

10K

R509

10K

+

C517

1000uF

+

C517

1000uF

R538

1K

R538

1K

D508

BL-B

B52V

1

D508

BL-B

B52V

1

S503

IT-1102D-1160

S503

IT-1102D-1160

12

R569

2.2K

R569

2.2K

D539

1N4148

D539

1N4148

IC505

CD4094BNSR

IC505

CD4094BNSR

STR1 D2 CLK3 OE

15

Q14Q25Q36Q47Q514Q613Q712Q811

QS9

QS10VDD

16

VSS8

Q528

2S

A1015

Q528

2S

A1015

R534

1K

R534

1K

D541

1N4148

D541

1N4148

R519

56

R519

56

P502A

6PIN2.54-A60B

P502A

6PIN2.54-A60B

2

3

4

1

5

6

Q539

2S

C1815

Q539

2S

C1815

C501

100nF

C501

100nF

Q545

2S

C1815

Q545

2S

C1815

R533

56

R533

56

R536

1K

R536

1K

R544

1K

R544

1K

X501

11.0592MHZ

X501

11.0592MHZ

R517

56

R517

56

D502

1N4148

D502

1N4148

C502 100nFC502 100nF

P504A

5PIN 2.54-760B

P504A

5PIN 2.54-760B

2

3

4

1

5

R562

4.7K

R562

4.7K

R522

130

R522

130

R505

10K

R505

10K

D544

1N4148

D544

1N4148

R523

10K

R523

10K

C511

100nF

C511

100nF

R518

56

R518

56

R51110Kx8R511

10Kx8

1 2

3

4

5

6

7

8

9

Q549

2S

C1815

Q549

2S

C1815

C512

100nF

C512

100nF

Q535

2SC1815

Q535

2SC1815

D510

BL-B

B52V

1

D510

BL-B

B52V

1

D548

1N4148

D548

1N4148

P501A

10PIN2.54-A240B

P501A

10PIN2.54-A240B

2

3

4

1

5

6

7

8

9

10

R552

4.7K

R552

4.7K R554

4.7K

R554

4.7K

Q548

2S

C1815

Q548

2S

C1815

Q537

2S

C1815

Q537

2S

C1815 Q

543

2S

C1815

Q543

2S

C1815

Q541

2S

C1815

Q541

2S

C1815

D515

BL-B

B52V

1

D515

BL-B

B52V

1

J502

CON4

J502

CON4

1

3

2

4

R515

56

R515

56

P503A

CON2X10 MALE

P503A

CON2X10 MALE

1

5

3

6

2

4

7 8

9 10

11 12

13 14

15 16

17 18

19 20

D509

BL-BB5B5201-B

D509

BL-BB5B5201-B

D534

4.7V

D534

4.7V

D511

BL-B

B52V

1

D511

BL-B

B52V

1

+

C518

10uF

+

C518

10uF

Q531

2SA1015

Q531

2SA1015

IC504

IS1U60L

IC504

IS1U60L

3V

2G

1S

G4

G5

R551

10K

R551

10K

R529

56

R529

56

Q509

2SA1015

Q509

2SA1015

Q508

2S

A1015

Q508

2S

A1015

D516

BL-B

B52V

1

D516

BL-B

B52V

1

S502

IT-1102D-1160

S502

IT-1102D-1160

12

Q551

2SC1815

Q551

2SC1815

R507

10K

R507

10K

R506

10K

R506

10K

Q550

2S

C1815

Q550

2S

C1815

R520

130

R520

130

+

C520

10uF

+

C520

10uF

R570

4.7K

R570

4.7K

S505

IT-1102D-1160

S505

IT-1102D-1160

12

D513

BL-B

B52V

1

D513

BL-B

B52V

1

S509

IT-1102D-1160

S509

IT-1102D-1160

12

Q505

2S

A1015

Q505

2S

A1015

Q510

2SA1015

Q510

2SA1015R526

4.7K

R526

4.7K

D5351N4148

D5351N4148

R568

10K

R568

10K

R549

4.7K

R549

4.7K

S510

IT-1102D-1160

S510

IT-1102D-1160

12

R560

4.7K

R560

4.7K

R516

56

R516

56

R524

N.I.

R524

N.I.

R553

4.7K

R553

4.7K

R548

4.7K

R548

4.7K

R567

1K

R567

1K

Q538

2S

C1815

Q538

2S

C1815

R532

56

R532

56

R561

4.7K

R561

4.7K

R547

1K

R547

1K

R539

1K

R539

1K

D549

1N4148

D549

1N4148

S511

IT-1102D-1160

S511

IT-1102D-1160

12

R541

1K

R541

1K

C507

10nF

C507

10nF

D538

1N4148

D538

1N4148

J501

PHONE JACK

J501

PHONE JACK

3

2

1

5

4

R537

1K

R537

1K

R566

10

R566

10

R543

1K

R543

1K

D545

1N4148

D545

1N4148

R527

10K

R527

10K

R546

4.7K

R546

4.7K

D504

Three LED

D504

Three LED

2

1

3

4

IC502

STC12C5A16S2-35C-LQFP44

IC502

STC12C5A16S2-35C-LQFP44

P4

.2/C

CP

0/M

ISO

39

P1

.0/C

LK

OU

T2

40

P1

.14

1

P1

.2/E

CI

42

P1

.3/C

CP

04

3

P1

.4/C

CP

1/S

S4

4

MOSI/P1.51

MISO/P1.62

SCLK/P1.73

P4.7/RST4

RxD/P3.05

SCLK/CCP1/P4.36

TxD/P3.17

INT0/P3.28

INT1/P3.39

CLKOUT0/T0/P3.410

CLKOUT1/T1/P3.511

VC

C3

8A

D0

/P0

.03

7A

D1

/P0

.13

6A

D2

/P0

.23

5A

D3

/P0

.33

4AD4/P0.4

33

AD5/P0.532

AD6/P0.631

AD7/P0.730

EX_LVD/P4.6/RST229

P4.1/ECI/MOSI28

ALE/P4.527

NA/P4.426

A15/P2.725

A14/P2.624

A13/P2.523

WR

/P3

.61

2R

D/P

3.7

13

XTA

L2

14

XTA

L1

15

GN

D1

6S

S/P

4.0

17

A8

/P2

.01

8A

9/P

2.1

19

A1

0/P

2.2

20

A11

/P2

.32

1A

12

/P2

.42

2

D505

BL-B

B52V

1

D505

BL-B

B52V

1

R558

4.7K

R558

4.7K

Q523

DTA

114E

SA

Q523

DTA

114E

SA

R525

100

R525

100

R530

56

R530

56

R571

4.7K

R571

4.7K

+

C522

100uF

+

C522

100uF

D543

1N4148

D543

1N4148

D540

1N4148

D540

1N4148

KEY AND DISPLAY

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