pioneer deh-3750mp

PIONEER CORPORATION 4-1, Meguro 1-chome,PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, LonPIONEER EUROPE NV Haven 1087, Keetberglaan 1, 912PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253

PIONEER CORPORATION 2004

DEH-3750MP/XU/GS

Meguro-ku, Tokyo 153-8654, Japang Beach, CA 90801-1760, U.S.A.

0 Melsele, BelgiumAlexandra Road, #04-01, Singapore 159936

ORDER NO.

CRT3399

HIGH POWER CD/MP3/WMA PLAYER WITH FM/AM TUNER

DEH-3750MP/XU/GS

DEH-3770MP/XU/CS

DEH-3750MP/XU/CN

This service manual should be used together with the following manual(s):

Model No. Order No. Mech.Module Remarks

CX-3158 CRT3394 S10.1AAC CD Mech. Module : Circuit Description, Mech. Description, Disassembly

For details, refer to "Important Check Points for Good Servicing".

K-ZZA. DEC. 2004 Printed in Japan

C

D

F

A

B

E
5 6 7 8
1. SPECIFICATIONS

DEH-3750MP/XU/GS 55 6 7 8

C

D

F

A

B

E

1 2 3 4

DEH-3750MP/XU/GS61 2 3 4

C

D

F

A

B

E
1 2 3 4
2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

NOTES : • Parts marked by " * " are generally unavailable because they are not in our Master Spare Parts List. • The > mark found on some component parts indicatesthe importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation.

• Screw adjacent to mark on the product are used for disassembly.• For the applying amount of lobricants or glue, follow the instructions in this manual. (In the case of no amount instructions,apply as you think it appropriate.)

"

15

11

12

13

1616

10

9

8

754

2

17

18

14

DEH-3750MP/XU/GS81 2 3 4

C

D

F

A

B

E

5 6 7 8

(1) PACKING SECTION PARTS LIST

(2) CONTRAST TABLEDEH-3750MP/XU/GS, DEH-3770MP/XU/CS and DEH-3750MP/XU/CN are constructed the same except for the fol-lowing:

Owner's Manual,Installation Manual

Mark No. Description Part No.

1 Accessory Assy CEA4850

2 Screw Assy CEA3849

3 •••••

4 Screw CBA1650

* 5 Polyethylene Bag CEG-127

6 Screw CRZ50P090FTC

7 Screw TRZ50P080FTC

* 8 Polyethylene Bag CEG-158

9 Handle CNC5395

10 Bush CNV3930

11 Polyethylene Bag CEG-162

12 Carton See Contrast table(2)

13 Contain Box See Contrast table(2)

14 Protector XHP7004

15 Protector XHP7003

16-1 Owner's Manual See Contrast table(2)

16-2 Installation Manual See Contrast table(2)

16-3 Caution Card See Contrast table(2)

* 16-4 Warranty Card See Contrast table(2)

17 Cord Assy XDE7008

18 Case Assy YXB5005

* 19 Battery CEX1065

20 Remote Control Unit CXC3173


Mark No. Description DEH-3750MP/XU/GS DEH-3770MP/XU/CS DEH-3750MP/XU/CN

12 Carton YHG5020 YHG5019 YHG5023

13 Contain Box YHL5020 YHL5019 YHL5023

16-1 Owner's Manual YRD5021 YRD5025 YRB5011

16-2 Installation Manual YRD5024 YRD5026 YRB5013

16-3 Caution Card CRP1310 CRP1310 Not used

* 16-4 Warranty Card Not used Not used ARY7046

Part No. Language

YRD5021 English, Traditional Chinese, Arabic

YRD5024 English, Traditional Chinese, Arabic

YRD5025 English, Spanish, Portuguese(B)

YRD5026 English, Spanish, Portuguese(B)

YRB5011 Casual Chinese

YRB5013 Casual Chinese

DEH-3750MP/XU/GS 95 6 7 8

C

D

F

A

B

E
1 2 3 4
2.2 EXTERIOR

C

C

B

A

A

B

A

B

33

43

53

42

3536

37

32

3

2

14

5

15

54

4 4

4

7

12

2

34

3941

38

49

40

48 47

4650

52

4431

31

1065

66

6160 62

57

64

63

56

5965

6555 5831

31

6

9

8

19

70

29

18

26

212022

25

23

282767

68

17

17

30

45

13

51

16

6869

712

2

7475

76

DEH-3750MP/XU/GS101 2 3 4

C

D

F

A

B

E

5 6 7 8

(1) EXTERIOR SECTION PARTS LIST


1 •••••

2 Screw BSZ26P060FTC



5 Cable YDE5008

6 Case CNB2793

7 Holder CNC8659

8 Earth Plate CNC8915

9 Cushion CNM8890

10 Panel See Contrast table(2)

11 •••••

12 CD Mechanism Module(S10.1AACA) See Contrast table(2)

13 Cord Assy XDE7008

14 Insulator XNM7106

15 Insulator YNM5012

16 Tuner Amp Unit See Contrast table(2)

17 Screw ASZ26P060FTC

18 Screw BPZ26P080FTC


> 20 Fuse(10A) CEK1208

21 Pin Jack(CN352) CKB1057

22 Plug(CN901) CKM1376

23 Connector(CN721) CKS3837

24 •••••


26 Antenna Jack(CN401) CKX1056

27 Holder CND1328

28 Heat Sink CNR1668

29 Holder CND1054

30 Holder YNC5004

31 Screw BPZ20P100FZK

32 Spring CBH2210

33 Knob(VOLUME) See Contrast table(2)

34 Button(DETACH) YAC5027

35 Button(SOURCE) YAC5030

36 Button(1-6, LOCAL/BSM) YAC5031

37 Button(AUDIO, LOUDNESS) YAC5032

38 Button(BAND) YAC5033

39 Button(EJECT, DISPLAY) YAC5034

40 Button(DOWN, RIGHT) See Contrast table(2)

41 Button(UP, LEFT) See Contrast table(2)

42 Button(CLOCK, EQ) YAC5039

43 Spring YBL5001

44 Cover YNS5038


46 Sheet CNM7932

47 Connector CNV7369

48 LCD(LCD1801) See Contrast table(2)

49 Holder YNC5005

50 Lighting Conductor YNV5004

51 Lighting Conductor YNV5005

52 Rubber Contact YNV5006

53 Grille Unit See Contrast table(2)

54 Chassis Unit YXA5080

55 Button(DETACH) CAC4836

56 Spring CBH1835

57 Spring CBH2208

58 Spring CBH2367

59 Bracket CNC6791

60 Holder CNC8042

61 Cover CNM6276

62 Arm CNV4692

63 Arm CNV4728

64 Arm CNV5576

65 Screw IMS20P030FZK

66 Panel YNS5046

67 IC(IC921) NJM2388F84

68 Transistor(Q911, 991) 2SD2396

69 IC(IC302) PAL007A

70 FM/AM Tuner Unit(Z401) CWE1646

71 Sheet See Contrast table(2)

72 Remote Control Unit CXC3173

73 Cover CNS7068

74 Cushion YNM5004

75 IC(IC1802) TSOP4840SB1

76 Sheet See Contrast table(2)


DEH-3750MP/XU/GS 115 6 7 8

C

D

F

A

B

E

1 2 3 4

(2) CONTRAST TABLEDEH-3750MP/XU/GS, DEH-3770MP/XU/CS and DEH-3750MP/XU/CN are constructed the same except for the fol-lowing:

Mark No. Description DEH-3750MP/XU/GS DEH-3770MP/XU/CS DEH-3750MP/XU/CN

10 Panel YNS5045 YNS5045 CNS8046

12 CD Mechanism Module(S10.1AACA) CXK5668 CXK5668 CXK5669

16 Tuner Amp Unit YWM5037 YWM5073 YWM5039

33 Knob(VOLUME) YAA5002 YAA5002 YAA5001

40 Button(DOWN, RIGHT) YAC5038 YAC5038 YAC5035

41 Button(UP, LEFT) YAC5037 YAC5037 YAC5036

48 LCD(LCD1801) YAW5027 YAW5015 YAW5027

53 Grille Unit YXA5082 YXA5051 YXA5052

71 Sheet Not used Not used CNM9404

76 Sheet YNM5011 Not used YNM5011

DEH-3750MP/XU/GS121 2 3 4

C

D

F

A

B

E
1 2 3 4
2.3 CD MECHANISM MODULE

A

D

H

L

M

NO

Q

R

A

B

C

D

E

F

GH

I

J

K

LM

N

O

Q

B

16

25

13 83

42

68

28

82

4

71

23

J

K

38

23

59

87

86

5

13

34

5

5

13

44

5C

52

53

36

4

73

29

51

18

64

76

50

10

72

75

49

77

67

27

78

60

9048

8

17

46

6

60

1189

43

70

14

31

65

85

66

85

31

35

14

74

85

1

23

R

91

12

33

61

63

21

79

57

58

6280

13

4

86

I

45

28

724

47

P

41

20

40

69

39

30P

1956

F

E22

81

15

G

26

5

54

37

55

93

92

10

C

1GEM10242GEM10453GEM1035

1

1

1

1

1

1

1

1

2

2

2

2

1

1

1

1

1

2

2

1

3

DEH-3750MP/XU/GS141 2 3 4

C

D

F

A

B

E

5 6 7 8

CD MECHANISM MODULE SECTION PARTS LIST


1 CD Core Unit(S10.1) CWX3096



4 Screw BMZ20P035FTC


6 Screw(M2x4) CBA1362



9 •••••

10 Washer CBF1038

11 Washer CBF1060

12 Spring CBH2390

13 Spring CBH2606

14 Spring CBH2607

15 Spring CBH2608

16 Spring CBH2609

17 Spring CBH2610

18 Spring CBH2735

19 Spring CBH2612

20 Spring CBH2613

21 Spring CBH2614

22 Spring CBH2615

23 Spring CBH2616

24 Spring CBH2617

25 Spring CBH2620

26 Spring CBH2621

27 Spring CBH2641

28 Spring CBH2642

29 Spring CBH2643

30 Spring CBH2659

31 Spring CBH2688

32 •••••

33 Shaft CLA4441

34 Frame CND2443

35 Frame CNC9963

36 Bracket CND2712

37 Bracket CND1895

38 Arm CNC9968

39 Arm CND1909

40 Lever CND2032

41 Lever CNC9984

42 Sheet CNM8134

43 Collar CNV8447

44 Guide CNV8448

45 Arm CNV8403

46 Rack CNV8374

47 Holder CNV8376

48 Holder CNV8377

49 Arm CNV8378

50 Gear CNV8379

51 Gear CNV8380

52 Gear CNV8381

53 Gear CNV8382

54 Gear CNV8383

55 Gear CNV8384

56 Rack CNV8385

57 Arm CNV8386

58 Arm CNV8387

59 Guide CNV8388

60 Roller CNV8189

61 Gear CNV8389

62 Arm(GS, CS) CNV8391

Arm Unit(CN) CXC3865

63 Arm(GS, CS) CNV8390

Arm Unit(CN) CXC3864

64 Arm CNV8392

65 Damper CNV7313

66 Damper CNV7314

67 Arm CNV8394

68 Arm CNV8395

69 Guide CNV8396

70 Guide CNV8397

71 Holder CNV8398

72 Arm CNV8402

73 Gear CNV8400

74 Damper CNV7618

75 Motor Unit(M1) CXC4440

76 Chassis Unit CXC2318

77 Screw Unit CXB8729

78 Gear Unit CXC2397

79 Arm Unit CXC2316

80 Arm CND1896

81 Arm CND1894

82 Motor Unit(M2) CXB8933

83 Bracket CNC9985

84 •••••

85 Screw(M2x5) EBA1028

86 Screw JFZ20P020FTC

87 Screw JGZ17P022FTC

88 •••••

89 Washer YE20FTC

90 Pickup Unit(P10)(Service) CXX1647

91 Screw IMS26P030FTC

92 Spring CBL1635

93 Clamper CNV8372


DEH-3750MP/XU/GS 155 6 7 8

C

D

F

A

B

E

2

E

L

3

SYSTEM

ICP

1 2 3 4

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM3.1 BLOCK DIAGRAM

BRST,BRXEN,BSRQ

C

CN901

Q101

M

LASERDIODE

MONITORDIODE

S903DSCSNS

FOCUS ACT.

M1SPINDLEMOTOR

MM2LOADING/CARRIAGE

MOTOR

TRACKING ACT.

LD-

MD

FOPTOP

15

5

14

PICKUP UNIT(P10)(SERVICE)

HOLOGRAM UNIT

IC 301BA5835FP

IC 201UPD63763GJ

IC 703

3V REGULATOR

RF AMP, CD DECODER,MP3 AND WMA DECODER,DIGITAL SERVO/DATA PROCESSOR

CDDRIVER

3VDVD

3VDD

10LOUT

5

CN101

TOP

FOP

16 SOP15 SOM18 LCOP17 LCOM

22

2

LOEJ

31LOUT

9CONT

12 FOP

FD,TD

AC,BD

E,F

SD,MD

3

13 TOP

S901HOME

S90412EJ

S9058EJ

LD+ 14

142 LD

143 PD

CD CORE UNIT(S10.1)

1312

X701

DSCSNS

CONT

LOEJ

HOME

32

97

53

47

VDD

IC 203NJM2885DL1-33

3.3V REGULATOR

V3R3D13

VDCONT49

S-812C33AUA-C2N

MICROCOMPUTER

IC 701PE5454A

4

V3R3D

19

BDATA,BSCK

VD2

VDD

2

15

5

14

14

VD2

VDCONT

30

31 8EJ

12EJ

X1 X2

reset14 15

RESET

CD3VON46

1CD3VON

TUN

CDL

CN4011

2

CN721

TUNER AMP UNIT

CD L

A

TUN 3.3V

SYS 8V

VDD

ANTENNA

Q991

RESET RST

14

21

5

20

VDCONT

VD1

4 3

5

Q992B.UP

A

VDD19

9

XSI,XSCK,CLAMSW,VDCONT,XAO

Q993

Q994

VD2

CD3VCONT

22

23

FMRF

ANT adjRF adj

FM ANT

T51 CF52CF51

RFG

ND

OS

CG

ND

DG

ND

AU

DIO

GN

D

NC

VC

C

VD

D_3

.3

3.3V 2.5VIC 4

3.3V 2.5V

←

IC 22.5V

WC

CE

2

RO

M_V

DD SL DI

CK

CE

1

NC

DO

NC

NC

NC

NC

7 6 13 5 10 9 8 11 14 18 19 20 21

1

3

2 12 15 22 16 4 17

IC 13.3V

AM ANT FMRFATT

LPFOSC

IC 3 EEPROM5.0V

IC 55V 3.3V←

ATT

MIXER, IF AMP DET, FM MPX

24

23

Rch

Lch

FM/AM TUNER UNIT

DEH-3750MP/XU/GS161 2 3 4

C

D

F

A

B

E

B.UP

5 6 7 8

FL-

FL+

RL-RL+

3

9

11

12

10

1

6

2

BACK UP

GND

FUSE

10A

ACC

B. REM

11R Lch

IN1-L

IN2-L

2

IC 151PML003AM

ELECTRONIC VOLUME/SOURCE SELECTOR

TUN L

3CDL

10F Lch

IC 1801PD6340A

LCD DRIVER/KEY CONTROLLER

KEY DATA

LCD1801

60

BSENS

ASENS

VDD

B.UP

63

64

48MUTE

21

23

3

5

FL-

FL+

RL-

RL+

ACC

RLIN12

22

POWER AMP

IC 601(1/2)PE5460A

SYSTEM CONTROLLER

IC 601(2/2)PE5460A

IC 961S-80834CNY

IC 302PAL007A

VDD

Q911

Q931

VDD

MUTE

3

5

CN1801CN831Q801

KEYBOARD UNIT

VC

K, V

DT

, VS

T

6

7

Q452

Q453

B.UP

Q821

17

19

DPDT

KYDT

SYSTEM CONTROLLER

VDD REGULATOR

BACKUP SENSE

ACC SENSE

3

9

11

12

10

1

2

B

CN901

TUNPCE1

TUNPCE2

TUNPDI

RE

SE

T

TUNPDO

56

55

11

12

TUNPCK13

TUNPDO

TUNPDI

CE1

CE2

TUNPCK

Q912

DALMON32

4

8

10

9

3

5

6

7

4

8

10

9

SOURCE

VOLUME

LAMPIL1801

SWVDDSWVDD

SRC

DSENS

ILM

ROT1

ROT0

DPDT

KYDT

S1827

SWVDD21

SOURCE66

DSENS65

ILMPW22

ROT136

ROT035

DPDT9

KYDT8

R Lch

CN352

2

3

FLIN14

SWVDD

Q822

DSENS

SOURCE

SWVDD

BSENS

ASENS

X1

X2

70

X60112.58291MHz69

XO

XI

22

X18015MHz23

Q352

RESET

4

SYSPW

SY

SP

W

STBY

TU 3.3V

TUN 3V REG.

MUTE

MUTE

IC 921NJM2388F84

B.UP

SYS 8V REG.

SYS8V

IC 981BA33BC0FP

A RST

B.UP

20 6

43SYSPW

1057

VLCDVDD

6B. REM25B. REM

VCC VCC

KEY MATRIX

REAR OUTPUT

17

13

REM

IC1802TSOP4840SB1

REM.CON.

DEH-3750MP/XU/GS 175 6 7 8

C

D

F

A

B

E

RE

CE

IVE

STRKEY2

bsrq

isens

1 2 3 4

3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)

A-a A-b

A-a A-b

A-b A-a

Large sizeSCH diagram

Guide page

Detailed page

Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS LIST".

A-a

A

471/

16

GS,CN

sw

vd

d

BDATA

ADPW

VS

S

AV

RE

F1

AV

DD

DIS

CS

EN

SS

TR

KE

Y1

br

st

br

xe

n

as

en

s

bs

en

s

ds

en

s

so

ur

ce

2322212019181716151413121110987654321

Symbol indicates a resistor.No differentiation is made between chip resistors anddiscrete resistors.

NOTE :

Symbol indicates a capacitor.No differentiation is made between chip capacitors anddiscrete capacitors.

C CN901

FM

/AM

TU

NE

R U

NIT

The > mark found on some component parts indicatesthe importance of the safety factor of the part.Therefore, when replacing, be sure to use parts ofidentical designation.

SYSTEM CONTROLLER

For resistors and capacitors in the circuit diagrams, their resistance values orcapacitance values are expressed in codes:

Ex. *Resistors Code Practical value 123 12k ohms 103 10k ohms

*Capacitors Code Practical value 103 0.01uF 101/10 100uF/10V

ANTENNA

BCN1801

DEH-3750MP/XU/GS181 2 3 4

C

D

F

A

B

E

A-a A-b

A-a A-b

A-b A-a

ds

en

s

so

ur

ce

TROLLE

5 6 7 8

A-b

A

332/

16

CE

K12

863A

CEK1208

>

RE

CE

IVE

STRKEY2

bsrq

isens

as

en

s

bs

en

s

A TUNER AMP UNIT

>

REARL CH

REARR CH

R10A

FM: 29.6dBAM: 19.1dBCD: 36.45dB

DEH-3750MP/XU/GS 195 6 7 8

C

D

F

A

B

EAV

A

DISCSTR

a

b

d

so

1 2 3 4

A-a

A-b

A-a

A-a

A-b

471/16

GS

,CN

VSS

REF1

VDD

SENSKEY1

sens

sens

sens

urce

2322

2120

1918

1716

1514

1312

1110

98

76

54

32

1

CC

N90

1

DEH-3750MP/XU/GS201 2 3 4

C

D

F

A

B

E

5 6 7 8

A-a

A-b

A-a

A-a

A-b21G

S,C

N

swvdd

BD

AT

A

AD

PW

VSS

AVREF1

AVDD

DISCSENSSTRKEY1

RECEIVE

ST

RK

EY

2

brst

brxen

bs

rq

isen

s

asens

bsens

dsens

source

Sym

bol i

ndic

ates

a r

esis

tor.

No

diffe

rent

iatio

n is

mad

e b

etw

een

chip

res

isto

rs a

nddi

scre

te r

esis

tors

.

NO

TE

: Sym

bol i

ndic

ates

a c

apac

itor.

No

diffe

rent

iatio

n is

mad

e b

etw

een

chip

cap

acito

rs a

nddi

scre

te c

apac

itors

.

FM/AM TUNER UNIT

The

> m

ark

foun

d on

som

e co

mpo

nent

par

ts in

dica

tes

the

impo

rtan

ce o

f the

saf

ety

fact

or o

f the

par

t.T

here

fore

, whe

n re

plac

ing,

be

sure

to u

se p

arts

of

iden

tical

des

igna

tion.

SY

ST

EM

CO

NT

RO

LLE

R

For

res

isto

rs a

nd c

apac

itors

in th

e ci

rcui

t dia

gram

s, th

eir

resi

stan

ce v

alue

s or

capa

cita

nce

valu

es a

re e

xpre

ssed

in c

odes

:

Ex.

*R

esis

tors

C

ode

Pra

ctic

al v

alue

1

23

12k

ohm

s

103

1

0k o

hms

*C

apac

itors

C

ode

P

ract

ical

val

ue

103

0.

01uF

1

01/1

0

100u

F/1

0V

AN

TE

NN

A

BC

N18

01

DEH-3750MP/XU/GS 215 6 7 8

C

D

F

A

B

E

1 2 3 4

A-a

A-b

A-b

332/16

CEK12863A

AT

UN

ER

AM

P U

NIT

>

RE

AR

L C

H

RE

AR

R C

H

FM

: 2

9.6d

BA

M:

19.

1dB

CD

: 36.

45dB

DEH-3750MP/XU/GS221 2 3 4

C

D

F

A

B

E

5 6 7 8

A-a

A-b

A-b21

CE

K12

08

> 10A

DEH-3750MP/XU/GS 235 6 7 8

C

D

F

A

B

E

DIS

1 2 3 4

3.3 KEYBOARD UNIT

B

GS,CN : YAW5027 CS : YAW5015

LCD DRIVER/KEY CONTROLLER

DEH-3750MP/XU/GS241 2 3 4

C

D

F

A

B

E

5 6 7 8

BGS,CN : CL-490SWFSD(12)

CS : CL-490S-WF-SD

D1803,D1804

B KEYBOARD UNIT

ACN83140mA,14V

DISPLAY

DEH-3750MP/XU/GS 255 6 7 8

C

D

F

A

B

E

TY

1 2 3 4

3.4 CD MECHANISM MODULE(GUIDE PAGE)

C-a

C

PICKUP UNIT(P10)(SERVICE)

M1 CXC4440SPINDLE MOTOR

M2 CXB8933LOADING

/CARRIAGE MOTOR CD DRIVER

T

F

F

T

T

T

F

F

FTCS

T

F

S

C

F

F

T

T

S S C C

C

C

S

S

T

T

F

F

1

3

2

0

9 7

$

8

5

4

@

#

%

DEH-3750MP/XU/GS261 2 3 4

C

D

F

A

B

E

5 6 7 8

Decimal points for resistorand capacitor fixed valuesare expressed as :2.2 2R20.022 R022

← ←

C-b

C

ras

SRAMLEVEL0

SRAMLEVEL1

SRAMLEVEL2

TYPE_A/D

SWITCHES:CD CORE UNIT(S10.1) S901:HOME SWITCH..........ON-OFF S903:DSCSNS SWITCH......ON-OFF S904:12EJ SWITCH.............ON-OFF S905:8EJ SWITCH...............ON-OFF

The underlined indicates the switch position.

CD CORE UNIT(S10.1)C

ACN721

FSIGNAL LINE

FOCUS SERVO LINE

TRACKING SERVO LINE

CARRIAGE SERVO LINE

SPINDLE SERVO LINE

T

C

S

3V REGULATOR

3.3V REGULATOR

MICRO COMPUTER

!

^

&

6

DEH-3750MP/XU/GS 275 6 7 8

C

D

F

A

B

E

1 2 3 4

A-a

C-b

C-a

C-a

C-b 1 2

PIC

KU

P U

NIT

(P10

)(S

ER

VIC

E)

T

F F

T

T TFF

F

T

C

S

T T F F@#

%

DEH-3750MP/XU/GS281 2 3 4

C

D

F

A

B

E

2

5 6 7 8

A-a

C-b

C-a

C-a

C-b3 4 5 6

M1

CX

C44

40S

PIN

DLE

MO

TO

R

M2

CX

B89

33LO

AD

ING

/CA

RR

IAG

E M

OT

OR

CD

DR

IVE

R

T F

S C

F F T T

S

S

C

C

CCSS

13 2

097$ 8

5

4

DEH-3750MP/XU/GS 295 6 7 8

C

D

F

A

B

E

1 2 3 4

Dec

imal

poi

nts

for

resi

stor

and

capa

cito

r fix

ed v

alue

sar

e ex

pres

sed

as :

2.2

2R

20.

022

R

022

←

←

C-a

C-b

C-b 1 2

ra

s

SW

ITC

HE

S:

CD

CO

RE

UN

IT(S

10.1

)

S90

1:H

OM

E S

WIT

CH

......

....O

N-O

FF

S

903:

DS

CS

NS

SW

ITC

H...

...O

N-O

FF

S

904:

12E

J S

WIT

CH

......

......

.ON

-OF

F

S90

5:8E

J S

WIT

CH

......

......

...O

N-O

FF

The

und

erlin

ed in

dica

tes

the

switc

h po

sitio

n.

CD

CO

RE

UN

IT(S

10.1

)C

FS

IGN

AL

LIN

E

FO

CU

S S

ER

VO

LIN

E

TR

AC

KIN

G S

ER

VO

LIN

E

CA

RR

IAG

E S

ER

VO

LIN

E

SP

IND

LE S

ER

VO

LIN

E

T C S

3.3V

RE

GU

LAT

OR

!

DEH-3750MP/XU/GS301 2 3 4

C

D

F

A

B

E

2

5 6 7 8

C-a

C-b

C-b3 4 5 6

SR

AM

LEV

EL0

SR

AM

LEV

EL1

SR

AM

LEV

EL2

TY

PE

_A/D

AC

N72

13V

RE

GU

LAT

OR

MIC

RO

CO

MP

UT

ER

^ &

6

DEH-3750MP/XU/GS 315 6 7 8

C

D

F

A

B

E

1 2 3 4

- Waveforms Note : 1. The encircled numbers denote measuring points in the circuit diagram.2. Reference voltage REFO1(1.65V)

1 DSCSNS2 8SNS3 12SNS4 LOEJ

5V/div5V/div5V/div5V/div

500ms/div

12 cm CD Loading operation

Ref.:GND

Mode:Normal



500ms/div

Ref.:GND

Mode:Normal

1 DSCSNS5 CLCONT4 LOEJ6 VD


500ms/div

12 cm CD Loading operation 8 cm CD Loading operation

Ref.:GND

Mode:Normal

0 FIN! RFOK7 SIN

200mV/div2V/div2V/div

500ms/div

12 cm CD-DA Source On setup operation

Ref.:REFO

Mode:Normal

# FE0 FIN@ TE9 TIN

500mV/div500mV/div500mV/div500mV/div

20ms/div

Ref.:REFO

Mode:Normal

@ TE# FE

500mV/div500mV/div

200ms/div

Source On setup operation CD-DA Play operation

Ref.:REFO

Mode:Normal

# FE0 FIN@ TE9 TIN

500mV/div500mV/div500mV/div500mV/div

20ms/div

CD-ROM play operation(Regular track Jump)

Ref.:REFO

Mode:Normal

$ MDX7 SIN

2V/div1V/div

5µs/div

Ref.:REFO

Mode:Normal

$ MDX7 SIN

1V/div200mV/div

50ms/div

Spindle waveform during play operation Spindle waveform during play operation(Wider)

Ref.:REFO

Mode:Normal

7 SIN8 CIN9 TIN

1V/div500mV/div500mV/div

2s/div

12 cm CD-DA setup operation after loading 12 cm CD-ROM(3 sessions) setup operation after loading

Ref.:REFO

Mode:Normal

7 SIN8 CIN9 TIN


2s/div

Ref.:REFO

Mode:Normal

7 SIN8 CIN9 TIN


1s/div

12 cm CD-ROM(1 session) setup operation after loading

Ref.:REFO

Mode:Normal

DEH-3750MP/XU/GS321 2 3 4

C

D

F

A

B

E

5 6 7 8

0 FIN# FE

500mV/div500mV/div

200ms/div

Focus Search waveform

Ref.:REFO

Mode:TEST

% RFAGC@ TE9 TIN


500µs/div

Ref.:REFO

Mode:TEST

@ TE% RFAGC

500mV/div500mV/div

2ms/div

Track Open waveform 1 Track Jump waveform

Ref.:REFO

Mode:TEST

% RFAGC@ TE8 CIN7 SIN

1V/div1V/div500mV/div2V/div

200ms/div

Ref.:REFO

Mode:Normal

Search operation(Outter to Inner)

^ LOUT& ROUT

1V/div1V/div

200µs/div

Analog audio waveform

Ref.:AGND

Mode:Normal

7 SIN8 CIN9 TIN


500ms/div

Ref.:REFO

Mode:Normal



500ms/div

12 cm CD Eject operation

CD-DA >> CD-ROM mode change(Band key)

Ref.:GND

Mode:Normal

% RFAGC@ TE9 TIN


500µs/div

4 Tracks Jump waveform 32 Tracks Jump waveform

Ref.:REFO

Mode:TEST

% RFAGC@ TE9 TIN


2ms/div

Ref.:REFO

Mode:TEST

% RFAGC@ TE9 TIN


1ms/div

10 Tracks Jump waveform

Ref.:REFO

Mode:TEST

1 DSCSNS5 CLCONT4 LOEJ

5V/div5V/div5V/div

500ms/div


Ref.:GND

Mode:Normal



500ms/div


Ref.:GND

Mode:Normal

DEH-3750MP/XU/GS 335 6 7 8

C

D

F

A

B

E

1 2 3 4

7 SIN8 CIN9 TIN


500ms/div

CD-ROM >> CD-DA mode change(Band key)

Ref.:REFO

Mode:Normal

% RFAGC9 TIN@ TE0 FIN


500µs/div

Black dot(800µm) during play

Ref.:REFO

Mode:Normal

DEH-3750MP/XU/GS341 2 3 4

C

D

F

A

B

E

1 2 3 4

4. PCB CONNECTION DIAGRAM4.1 TUNER AMP UNIT

CapacitorConnector

P.C.Board Chip Part

A

A TUNER AMP UNIT

SIDE B

SIDE A

NOTE FOR PCB DIAGRAMS1.The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic diagram.2.Viewpoint of PCB diagrams

C CN901

CORD ASSY1

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

2

3

DEH-3750MP/XU/GS361 2 3 4

C

D

F

A

B

E

SSY

0

11

12

13

14

5 6 7 8

A

SIDE A

B CN1801

FRONT

RCAANTENNA

FM

/AM

TU

NE

R U

NIT

REAR OUTPUT

15 1 42

2

1

316

DEH-3750MP/XU/GS 375 6 7 8

C

D

F

A

B

E

CL

1 2 3 4

A

A TUNER AMP UNIT

PTEST

1

1

DEH-3750MP/XU/GS381 2 3 4

C

D

F

A

B

E

EST

5 6 7 8

A

SIDE B

PCL

11

DEH-3750MP/XU/GS 395 6 7 8

C

D

F

A

B

E

1 2 3 4

4.2 KEYBOARD UNIT

B

B KEYBOARD UNIT SIDE A

CLO

CK

EQ

VO

LUM

E

SO

UR

CE

12

BA

ND

LCD1801

43

6

LOC

AL/

BS

M

5D

OW

N

LOU

DN

ES

S

DIS

PLA

Y

RIG

HT

LEF

T

AU

DIO

EJE

CT

UP

DEH-3750MP/XU/GS401 2 3 4

C

D

F

A

B

E

5 6 7 8

B

B KEYBOARD UNIT SIDE B

A CN831

DEH-3750MP/XU/GS 415 6 7 8

C

D

F

A

B

E

1 2 3 4

4.3 CD CORE UNIT(S10.1)

C

C CD CORE UNIT(S10.1) SIDE A

ACN721

PIC

KU

P U

NIT

(P10

)(S

ER

VIC

E)

HOME

M2LOADING

/CARRIAGEMOTOR

M1SPINDLEMOTOR

EF

REFO1

DEH-3750MP/XU/GS421 2 3 4

C

D

F

A

B

E

5 6 7 8

C

C CD CORE UNIT(S10.1) SIDE B

12EJ8EJ

DSCSNS

DEH-3750MP/XU/GS 435 6 7 8

C

D

F

A

B

E

1 2 3 4

5. ELECTRICAL PARTS LIST

NOTE:• Parts whose parts numbers are omitted are subject to being not supplied.• The part numbers shown below indicate chip components. Chip Resistor RS1/_S___J,RS1/__S___J Chip Capacitor (except for CQS.....) CKS....., CCS....., CSZS.....• The > mark found on some component parts indicatesthe importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation.

Circuit Symbol and No. Part No.

AUnit Number:YWM5037(GS)Unit Number:YWM5073(CS)Unit Number:YWM5039(CN)Unit Name:Tuner Amp Unit

MISCELLANEOUS

IC 151 (B,132,80) IC PML003AMIC 302 (A,93,132) IC PAL007AIC 601 (B,85,52) IC PE5460AIC 921 (A,6,119) IC NJM2388F84IC 961 (A,46,62) IC S-80834CNY

IC 981 (B,146,27) IC BA33BC0FPQ 352 (B,159,125) Transistor IMH3AQ 452 (B,140,115) Transistor DTC124EUQ 453 (B,135,107) Transistor DTA124EUQ 801 (B,28,25) Transistor 2SA1036K

Q 821 (B,20,29) Transistor 2SA1036KQ 822 (B,17,33) Transistor DTC114EUQ 911 (A,6,100) Transistor 2SD2396Q 912 (B,17,64) Transistor IMD2AQ 931 (B,70,86) Transistor IMX1

Q 991 (A,6,66) Transistor 2SD2396Q 992 (B,25,50) Transistor IMD2AQ 993 (B,32,41) Transistor 2SA1036KQ 994 (B,39,41) Transistor DTC114EUD 831 (A,139,18) Diode 1SS133

D 832 (A,122,23) Diode 1SS133D 833 (A,114,24) Diode 1SS133D 834 (A,111,19) Diode 1SS133D 835 (A,113,10) Diode 1SS133D 836 (A,126,25) Diode 1SS133

D 837 (A,134,21) Diode 1SS133D 838 (A,119,18) Diode 1SS133D 839 (A,117,18) Diode 1SS133D 840 (A,118,15) Diode 1SS133D 841 (A,116,15) Diode 1SS133

D 842 (A,130,25) Diode 1SS133D 901 (A,69,113) Diode S5688GD 902 (A,72,110) Diode S5688GD 911 (A,30,78) Diode S5688GD 912 (A,18,60) Diode HZS6L(B2)

D 931 (A,55,93) Diode HZS7L(C3)D 932 (A,60,91) Diode HZS7L(A1)D 971 (A,60,104) Diode S5688GD 972 (A,57,104) Diode S5688GD 991 (A,13,48) Diode HZS7L(C3)

L 151 (A,141,79) Inductor LAU2R2KL 401 (A,155,55) Inductor LAU1R0KL 402 (A,155,92) Inductor LAU1R0KL 404 (A,155,99) Ferri-Inductor LAU4R7KL 601 (A,64,64) Inductor LAU1R0K

L 604 (A,104,66) Inductor LAU1R0KL 801 (A,28,15) Inductor LAU2R2KL 901 (A,35,103) Choke Coil 600µH CTH1280X 601 (A,101,61) Radiator 12.58291MHz CSS1402>FU352 (B,140,136) Fuse 3A CEK1286

Z 401 (A,163,100) FM/AM Tuner Unit CWE1646AR401 (A,159,119) Surge Protector DSP-201M-S00B> Fuse 10A CEK1208

RESISTORS

R 153 (B,127,104) RS1/16S471JR 154 (B,147,93) RS1/16S471JR 155 (B,127,102) RS1/16S471JR 156 (B,136,94) RS1/16S471JR 157 (B,84,79) RAB4C102J

R 301 (A,100,96) RD1/4PU153JR 353 (B,141,122) RS1/16S471JR 354 (B,163,125) RS1/16S471JR 357 (B,145,130) RS1/16S223JR 358 (B,160,134) RS1/16S223J

R 405 (B,158,62) RS1/16S681JR 407 (B,159,83) RS1/16S681JR 408 (B,159,85) RS1/16S681JR 409 (B,159,86) RS1/16S681JR 410 (B,159,88) RS1/16S681J

R 414 (B,156,88) RS1/16S0R0JR 420 (B,105,44) RS1/16S681JR 421 (B,159,79) RS1/16S473JR 454 (B,133,114) RS1/16S103JR 455 (B,141,132) RS1/16S153J

R 456 (B,139,132) RS1/16S221JR 457 (A,120,54) RD1/4PU681JR 601 (B,102,49) (GS,CN) RS1/16S473JR 602 (B,102,51) RS1/16S473JR 603 (B,63,75) RS1/16S103J

R 604 (B,60,75) RS1/16S103J


DEH-3750MP/XU/GS441 2 3 4

C

D

F

A

B

E

5 6 7 8

R 605 (B,84,21) RS1/16S222JR 606 (B,110,41) RS1/16S104JR 608 (B,104,63) RS1/16S0R0JR 609 (A,102,47) RD1/4PU473J


R 620 (B,94,40) RS1/16S0R0JR 633 (B,65,40) RS1/16S104JR 720 (B,65,23) RS1/16S473JR 722 (B,55,27) RS1/16S682JR 723 (B,55,43) RS1/16S682J

R 724 (B,45,16) RS1/16S473JR 725 (B,44,36) RS1/16S682JR 727 (A,35,22) RD1/4PU682JR 735 (B,56,28) RS1/16S102JR 739 (B,53,36) RS1/16S0R0J

R 740 (B,54,34) RS1/16S0R0JR 744 (B,45,55) RS1/16S221JR 745 (B,54,24) RS1/16S221JR 746 (B,55,19) RS1/16S221JR 747 (A,88,33) RD1/4PU221J

R 748 (B,90,24) RS1/16S221JR 750 (B,61,22) RS1/16S0R0JR 751 (B,55,21) RS1/16S0R0JR 801 (B,24,27) RS1/16S153JR 802 (B,28,20) RS1/16S153J


R 836 (B,131,21) RS1/16S104JR 837 (A,128,21) RD1/4PU103JR 838 (A,113,44) RD1/4PU102JR 841 (B,15,28) RS1/16S1R0JR 848 (A,100,41) RD1/4PU102J


R 857 (B,104,18) RS1/16S222JR 858 (A,127,27) RD1/4PU102JR 911 (B,11,68) RS1/16S223JR 912 (A,14,68) RD1/4PU152JR 923 (B,10,110) RS1/16S473J

R 931 (B,62,92) RS1/16S473JR 932 (B,65,85) RS1/16S104JR 933 (A,54,99) RD1/4PU102JR 934 (B,64,95) RS1/16S473JR 935 (B,64,92) RS1/16S473J


R 962 (B,45,66) RS1/16S822J

Circuit Symbol and No. Part No.R 981 (A,136,38) RD1/4PU1R8JR 991 (A,13,53) RD1/4PU271JR 992 (A,18,50) RD1/4PU121JR 995 (B,28,42) RS1/16S103J

R 996 (B,26,44) RS1/16S222J

CAPACITORS

C 151 (B,159,71) CKSRYB224K16C 152 (B,159,73) CKSRYB224K16C 153 (B,122,74) CKSRYB105K10C 154 (B,145,82) CKSRYB105K10C 155 (A,121,78) CEJQ4R7M35

C 156 (A,143,88) CEJQ4R7M35C 157 (B,123,85) CKSRYB153K50C 158 (B,143,95) CKSRYB153K50C 161 (B,125,99) CCSRCH100D50C 162 (B,139,94) CCSRCH100D50

C 163 (B,131,95) CCSRCH100D50C 164 (B,139,96) CCSRCH100D50C 165 (B,140,70) CKSRYB104K16C 166 (A,135,66) CEJQ470M10C 167 (A,124,66) CEJQ100M16

C 301 (A,135,111) CFTNA224J50C 302 (A,145,119) CFTNA224J50C 303 (A,130,111) CFTNA224J50C 304 (A,143,125) CFTNA224J50C 309 (B,135,136) CKSQYB225K10

C 310 (B,122,143) CKSQYB225K10C 312 (A,100,118) CEJQ100M16C 313 (B,40,122) CKSRYB104K16C 353 (A,132,102) CEJQ2R2M50C 354 (A,140,102) CEJQ2R2M50

C 401 (B,164,67) CKSRYB103K50C 402 (B,153,56) CKSRYB103K50C 403 (A,150,53) CEJQ470M6R3C 404 (A,153,87) CEJQ101M10C 405 (B,166,94) CKSRYB104K25

C 420 (B,112,68) CCSRCH470J50C 451 (A,134,131) CEJQ330M10C 601 (B,54,64) CKSRYB104K25C 604 (B,97,64) CCSRCH200J50C 605 (B,101,64) CCSRCH200J50

C 610 (A,94,71) CEJQ100M16C 611 (B,97,68) CKSRYB224K16C 725 (B,120,74) CKSRYB102K50C 726 (B,148,84) CKSRYB102K50C 801 (B,11,36) CKSRYB104K16

C 901 (A,46,121) 3300µF/16V CCH1494C 911 (A,16,76) CEJQ470M10C 912 (B,12,64) CKSRYB103K50C 913 (A,25,86) 470µF/16V CCH1331C 921 (A,14,115) CEJQ101M16

C 922 (A,18,107) CEJQ221M10C 923 (B,18,110) CKSRYB103K50C 924 (B,17,101) CKSRYB103K50C 961 (B,50,66) CKSRYB473K50C 963 (A,46,69) CEJQ100M16

C 982 (B,145,40) CKSRYB103K50C 983 (A,147,35) CEJQ220M16


DEH-3750MP/XU/GS 455 6 7 8

C

D

F

A

B

E

1 2 3 4

C 991 (B,20,50) CKSRYB473K50C 992 (A,26,60) CEJQ101M16C 994 (A,30,34) 470µF/16V CCH1331

BUnit Number:Unit Name:Keyboard Unit

MISCELLANEOUS

IC 1801 (B,29,96) IC PD6340AIC 1802 (A,15,27) IC TSOP4840SB1D 1801 (B,19,40) Diode MA152WKD 1802 (B,24,40) Diode MA152WAD 1803 (A,25,38) (GS,CN) LED CL-490SWFSD(12)

(A,25,38) (CS) LED CL-490S-WF-SDD 1804 (A,25,128) (GS,CN) LED CL-490SWFSD(12)

(A,25,128) (CS) LED CL-490S-WF-SDD 1805 (A,13,22) LED SML-310PTD 1806 (A,26,9) LED SML-310PT

D 1807 (A,30,27) LED SML-310PTD 1808 (A,39,50) LED SML-310PTD 1809 (A,5,10) LED SML-310PTD 1810 (A,34,9) LED SML-310PTD 1811 (A,39,84) LED SML-310PT

D 1812 (A,39,73) LED SML-310PTD 1813 (A,39,61) LED SML-310PTD 1814 (A,39,96) LED SML-310PTD 1815 (A,39,107) LED SML-310PTD 1816 (A,39,119) LED SML-310PT

D 1817 (A,39,35) LED CL-190UB2-XD 1818 (A,39,131) LED CL-190UB2-XX 1801 (B,37,83) Ceramic Resonator 5.00MHz CSS1547S 1827 (A,23,19) Encoder(VOLUME) YSD5002IL 1801 (B,23,147) Lamp 40mA,14V CEL1651

LCD1801 (A,16,45) (GS,CN) LCD YAW5027(A,16,45) (CS) LCD YAW5015

RESISTORS




R 1816 (B,25,29) RS1/16S151JR 1817 (B,22,35) RS1/16S151JR 1818 (B,29,137) RS1/16S151JR 1819 (B,26,137) RS1/16S151JR 1820 (B,17,31) RS1/16S0R0J

R 1821 (B,27,25) RS1/16S151J

Circuit Symbol and No. Part No.R 1831 (B,33,23) RS1/16S472JR 1832 (B,35,23) RS1/16S472JR 1833 (B,12,21) RS1/16S2R2JR 1835 (B,20,20) RS1/16S121J

CAPACITORS

C 1801 (B,18,20) CKSRYB474K10C 1802 (B,27,52) CKSRYF104Z25C 1811 (A,25,32) CKSRYF104Z25C 1812 (A,20,129) CKSRYF104Z25C 1813 (A,39,33) CKSRYF104Z25

C 1814 (A,39,133) CKSRYF104Z25

CUnit Number:CWX3096Unit Name:CD Core Unit(S10.1)

MISCELLANEOUS

IC 201 (A,39,24) IC UPD63763GJIC 203 (B,45,78) IC NJM2885DL1-33IC 301 (A,49,88) IC BA5835FPIC 701 (A,48,51) IC PE5454AIC 703 (A,30,44) IC S-812C33AUA-C2N

Q 101 (A,20,22) Transistor 2SA1577Q 701 (B,62,59) Transistor UN2111L 203 (A,53,32) Inductor CTF1389L 207 (A,53,31) Inductor CTF1389L 209 (A,26,20) Inductor CTF1389

L 703 (A,64,49) Inductor CTF1389X 201 (A,51,35) Ceramic Resonator 16.934MHz CSS1603X 701 (A,59,53) Ceramic Resonator 4.00MHz CSS1652S 901 (A,15,43) Switch(HOME) CSN1067S 903 (B,53,100) Switch(DSCSNS) CSN1068

S 904 (B,35,108) Switch(12EJ) CSN1067S 905 (B,48,109) Switch(8EJ) CSN1067

RESISTORS

R 101 (A,22,24) RS1/10SR2R4JR 102 (A,22,26) RS1/10SR2R4JR 103 (A,25,25) RS1/10SR2R7JR 201 (A,53,16) RS1/16SS102JR 202 (A,55,21) RS1/16SS333J

R 221 (B,31,18) RS1/16SS103JR 222 (B,26,18) RS1/16SS103JR 225 (A,27,8) RS1/16SS103JR 226 (A,27,7) RS1/16SS393JR 227 (B,33,10) RS1/16SS562J

R 228 (B,36,8) RS1/16SS122JR 229 (B,34,8) RS1/16SS472JR 232 (B,35,10) RS1/16SS122JR 241 (B,42,28) RS1/16SS333JR 243 (B,44,28) RS1/16SS333J

R 245 (A,39,38) RS1/16SS333JR 301 (A,48,78) RS1/16SS183JR 302 (A,42,78) RS1/16SS822JR 304 (A,50,78) RS1/16SS183JR 305 (A,42,77) RS1/16SS822J

R 307 (A,36,85) RS1/16SS183J


DEH-3750MP/XU/GS461 2 3 4

C

D

F

A

B

E

5 6 7 8

R 308 (A,32,83) RS1/16SS183JR 309 (A,38,89) RS1/16SS183JR 310 (A,35,88) RS1/16SS183JR 601 (B,43,59) RS1/16S101J

R 602 (B,41,62) RS1/16S101JR 606 (B,44,67) RS1/16S0R0JR 607 (B,43,56) RS1/16SS0R0JR 608 (B,36,67) RS1/16SS0R0JR 705 (B,50,59) RS1/16SS221J

R 706 (B,57,61) RS1/16SS221JR 707 (A,62,47) RS1/16SS473JR 708 (B,50,57) RS1/16SS221JR 710 (A,28,77) RS1/16SS102JR 711 (B,44,53) RS1/16SS221J

R 714 (B,51,53) RS1/16SS473JR 716 (A,63,56) RS1/16SS472JR 719 (B,49,45) RS1/16SS221JR 720 (B,46,52) RS1/16SS471JR 724 (A,62,42) RS1/16S473J

R 725 (B,57,43) RS1/16SS222JR 726 (A,52,41) RS1/16SS103JR 727 (B,50,54) RS1/16SS473JR 729 (A,57,40) RS1/16SS223JR 730 (A,65,41) RS1/16SS473J

R 731 (A,53,41) RS1/16SS104JR 737 (A,41,42) RS1/16SS104JR 740 (A,35,46) RS1/16SS473JR 742 (A,50,41) RS1/16SS104JR 746 (B,60,56) RS1/16SS104J

R 750 (A,39,59) RS1/16SS473JR 754 (B,48,60) RS1/16SS102JR 755 (A,43,61) RS1/16SS102JR 765 (B,51,40) RAB4CQ221JR 769 (B,48,40) RAB4CQ221J

R 773 (B,39,37) RAB4CQ221JR 777 (B,48,51) RS1/16SS221JR 778 (B,48,52) RS1/16SS221JR 779 (B,45,54) RS1/16SS221JR 901 (B,52,65) RAB4CQ221J

R 905 (B,54,60) RS1/16SS221JR 906 (B,56,68) RS1/16SS221JR 908 (B,45,69) RS1/16SS0R0JR 910 (B,44,69) RS1/16SS0R0JR 911 (B,40,73) RS1/16SS102J

CAPACITORS

C 103 (B,14,8) 100µF/16V CCH1504C 105 (A,19,15) CKSSYB104K10C 108 (B,39,16) CKSSYB104K10C 110 (A,18,6) CKSSYB104K10C 201 (A,51,14) CKSSYB102K50

C 202 (B,50,17) CKSSYB104K10C 203 (A,55,23) CKSSYB104K10C 204 (B,28,22) CEVW220M6R3C 205 (A,53,25) CKSSYB104K10C 208 (B,44,25) CKSSYB104K10

C 209 (A,54,29) CKSSYB104K10C 212 (A,45,37) CKSRYB105K10C 216 (A,25,8) CKSSYB332K50C 217 (A,28,12) CKSSYB104K10

Circuit Symbol and No. Part No.C 218 (A,25,7) CKSSYB473K10

C 219 (A,34,7) CKSSYB104K10C 220 (A,33,11) CKSSYB182K50C 221 (B,35,6) CKSSYB104K10C 222 (B,35,8) CCSSCH560J50C 223 (B,33,8) CCSSCH4R0C50

C 224 (B,40,16) CKSSYB104K10C 225 (B,45,14) CKSSYB103K16C 226 (B,43,12) CCSSCH680J50C 227 (A,45,10) CCSSCH470J50C 228 (A,49,9) CKSSYB103K16

C 234 (B,36,81) CEVW221M4C 237 (B,38,29) CKSSYB104K10C 239 (B,34,10) CCSSCH220J50C 242 (B,58,32) CKSSYB104K10C 243 (B,39,76) CKSSYB104K10

C 244 (B,49,70) CKSSYB104K10C 246 (A,23,19) CKSSYB104K10C 251 (B,28,31) CKSRYB102K50C 260 (A,54,25) CKSSYB104K10C 301 (A,43,78) CKSSYB221K50

C 302 (A,50,79) CKSSYB221K50C 303 (A,37,85) CKSSYB472K25C 304 (A,39,89) CKSSYB103K16C 305 (B,34,92) CEVW101M16C 307 (B,56,90) CKSSYB104K10

C 601 (B,46,60) CCSRCH102J50C 602 (B,41,65) CCSRCH102J50C 701 (A,64,46) CKSSYB104K10C 703 (B,50,61) CKSSYB103K16C 706 (B,50,62) CKSSYB104K10

C 707 (A,36,45) CKSSYB104K10C 712 (A,22,42) CKSRYB224K16C 714 (B,60,45) CKSSYB104K10C 716 (A,61,40) CKSSYB103K16C 722 (B,52,48) CKSQYB475K6R3

C 723 (A,26,41) CKSRYB105K10C 903 (B,56,70) CKSSYB471K50C 906 (A,40,77) CKSRYB224K16C 907 (A,47,76) CKSSYB103K16C 910 (B,60,71) CKSQYB225K10

Miscellaneous Parts List

Pickup Unit(P10)(Service) CXX1647M 1 Motor Unit(SPINDLE) CXC4440M 2 Motor Unit(LOADING/CARRIAGE) CXB8933


DEH-3750MP/XU/GS 475 6 7 8

C

D

F

A

B

E

1 2 3 4

6. ADJUSTMENT6.1 CD ADJUSTMENT

1) Cautions on adjustments• In this product the single voltage (3.3V) is used for the regulator. The reference voltage is the REFO1 (1.65V) instead of the GND.If you should mistakenly short the REFO1 with the GND during adjustment, accurate voltage will not be obtained, and the servo’s misoperation will apply excessive shock to the pickup. To avoid such problems:a. Do not mix up the REFO1 with the GND when connecting the (-) probe of measuring instruments. Especially on an oscilloscope, avoid connecting the (-) probe for CH1 to the GND. b. In many cases, measuring instruments have the same potential as that for the (-) probe. Be sure to set the measuring instruments to the floating state.c. If you have mistakenly connected the REFO1 to the GND, turn off the regulator or the power immediately.

• Before mounting and removing filters or leads for adjustment, be sure to turn off the regulator.

• For stable circuit operation, keep the mechanism operating for about one minute or more after the regulator is turned on.

• In the test mode, any software protections will not work. Avoid applying any mechanical or electrical shock to the mechanism during adjustment.

• The RFI and RFO signals with a wide frequency range are easy to oscillate. When observing the signals, insert a resistor of 1k ohms in series.

• The load and eject operation is not guarantied with the mechanism upside down. If the mechanism is blocked due to mistaken eject operation, reset the product or turn off and on the ACC to restore it.

2) Test modeThis mode is used to adjust the CD mechanism module.• To enter the test mode.While pressing the 4 and 6 keys at the same time, reset.• To exit from the test mode.Turn off the ACC and back up.

Notes:a. During ejection, do not press any other keys than the EJECT key until the loaded disc is ejected.b. If you have pressed the (→) key or (←) key during focus search, turn off the power immediately to protect the actuator from damage caused by the lens stuck.c. For the TR jump modes except 100TR, the track jump operation will continue even if the key is released.d. For the CRG move and 100TR jump modes, the tracking loop will be closed at the same time when the key is released.e. When the power is turned off and on, the jump mode is reset to the single TR (91), the RF amp gain is set to 0dB, and the auto-adjustment values are reset to the default settings.

DEH-3750MP/XU/GS481 2 3 4

C

D

F

A

B

E

5 6 7 8

[BAND]

[BAND]

[BAND]

[BAND]

[BAND]

Power On(T.Offset is adjusted)

TRK00 MIN00 SEC

SEC

00

[CD]or[SOURCE]

Source On

TRK MIN

[4]+[6]+Reset or [4]+[6]+BU+ACC

Test Mode In

[3]

[1]

[1]

Power On(T.Offset is not adjusted)

TRK99 MIN99 SEC99

[2]

[2]

[2]

[2]

Power Off

TRK MIN SEC

Power Off

TRK MIN SEC

Power Off

TRK MIN SEC

Power Off

TRK MIN SEC

Focus CloseS curve check

T.Close and AGCApplicable servomechanism

TRK91 MIN91 SEC91

[6] [1]

[3]

[6]

[3]

Focus Mode switching

SPINDLESpeed switching

RF AMPGain switching

TRK0xMIN0xSEC0x

Tracking ServoClose

TRK00 MIN00 SEC00or TRK99 MIN99 SEC99

CRG-


[→] [←]

[→] [←]

[→] [←]

CRG+


Automatic adjustment switching

TRK?? MIN?? SEC??

T.CloseApplicable servomechanism

TRK?tr

MIN?min

SEC?sec

[6]

[3]

TRK MIN SEC

RF AGC /RF AGC coefficient display

TRK?? MIN?? SEC??

CRG+

TRK8x MIN8x SEC8xor TRK9xMIN9xSEC9x

CRG-

TRK8xMIN8xSEC8xor TRK9xMIN9xSEC9x

T.Balance adjustment /T.BAL coefficient display

TRK?? MIN?? SEC??

F,T,RF AGCF.Bias display switching

TRK?? MIN?? SEC??

F,T AGC / F.BiasRF AGC

TRK MIN SEC

CRG/TR Jump value switching

TRK MIN SEC

CRG/TR Jump +

TRK MIN SEC

CRG/TR Jump -

TRK MIN SEC

Tracking Open

TRK8xMIN8xSEC8xor TRK 9xMIN9xSEC 9x

Tracking Open

TRK8x MIN8x SEC8xor TRK9xMIN9xSEC9x

TRKSP MINSP SECSP

[4]

TRKGGMINGGSECGG

[2]

[Key]

[BAND]

[→]

[6]

[1]

[2]

[3]

Power On / Off

CRG + / TR Jump + (Direction of the external surface)

CRG - / TR Jump - (Direction of the internal surface)

U.CLS and AGC and Applicable servomechanism /AGC, AGC display setting

RF Gain switching / Offset adjustment display /T.Balance adjustment / T.Open

Close, S.Curve / Rough Servo and RF AGC /

SPDL 1X / 2X switchingAs for the double speed (2x), audio output cannot be supported.

Error Rate measurement1st - ON : ERR count Beginning (30Sec)2nd - ON : BER display data [%]

F.Mode switching / Tracking Close /CRG • TR Jump switching

Test Mode

Operation

[KEY]

Contents

Display

F, T, RF AGC

*1) TYP → -6dB → -12dB TRK MIN SEC TRK 06 MIN 06 SEC 06 TRK 12 MIN 12 SEC 12

*2) Focus Close → S.Curve check setting → F EQ measurement setting

*9) Applicability : A, B, C, D, E, F

As for the double speed (2x), audio output cannot be supported

TRK 00 MIN 00 SEC 00 TRK 01 MIN 01 SEC 01 TRK 02 MIN 02 SEC 02 (TRK 99 MIN 99 SEC 99)

*3) F.Offset Display → T.Offset Display → Switch to the order of the original display

*4) 1TR / 32TR / 100TR

*5) Single TR → 32TR → 100TR → CRG Move 9x(8x) : 91(81) 92(82) 93(83) 94(84)

*6) Only at the time of CRG move, 100TR jump

*7) TRK/MIN/SEC → F.AGC → T.AGC → F Bias → RF AGC

*8) CRG motor voltage = 2[V]

[←]

- Flow Chart

*1 *9

*2 *8 *8

*3

*7 *5 *4*4

*6

?tr ?min ?sec

?tr ?min ?sec ?tr ?min ?sec ?tr ?min ?sec ?tr ?min ?sec

TYP(1X) → 2X → 1X TRK MIN SEC TRK 22 MIN 22 SEC 22 TRK 11 MIN 11 SEC 11

Applicability : G TYP(2X) → 1X → 2X TRK MIN SEC TRK 11 MIN 11 SEC 11 TRK 22 MIN 22 SEC 22

[4]

[5]

DEH-3750MP/XU/GS 495 6 7 8

C

D

F

A

B

E

1 2 3 4

6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT

• Note :The grating angle of the PU unit cannot be adjusted after the PU unit is changed. The PU unit in the CD mechanism module is adjusted on the production line to match the CD mechanism module and is thus the best adjusted PU unit for the CD mechanism module. Changing the PU unit is thus best considered as a last resort. However, if the PU unit must be changed, the grating should be checked using the procedure below.

• Purpose :To check that the grating is within an acceptable range when the PU unit is changed.

• Symptoms of Mal-adjustment :If the grating is off by a large amount symptoms such as being unable to close tracking, being unable to perform track search operations, or taking a long time for track searching.

• Method :

• Measuring Equipment• Measuring Points

• Oscilloscope, Two L.P.F.• E, F, REFO1

• Disc • TCD-782• Mode • TEST MODE

• Checking Procedure1. In test mode, load the disc and switch the 3V regulator on.2. Using the → and ← buttons, move the PU unit to the innermost track.3. Press key 3 to close focus, the display should read "91". Press key 2 to implement the tracking balance adjustment the display should now read "81". Press key 3. The display will change, returning to "81" on the fourth press.4. As shown in the diagram above, monitor the LPF outputs using the oscilloscope and check that the phase difference is within 75° . Refer to the photographs supplied to determine the phase angle.5. If the phase difference is determined to be greater than 75° try changing the PU unit to see if there is any improvement. If, after trying this a number of times, the grating angle does not become less than 75° then the mechanism should be judged to be at fault.• NoteBecause of eccentricity in the disc and a slight misalignment of the clamping center the grating waveform may be seen to "wobble" ( the phase difference changes as the disc rotates). The angle specified above indicates the average angle.

• HintReloading the disc changes the clamp position and may decrease the "wobble".

100kΩ

390pF

100kΩ

390pF

E

VREF

F

VREF

Xch Ych

L.P.F.

L.P.F.

REFO1

F E

CD CORE UNIT(S10.1)

Oscilloscope

DEH-3750MP/XU/GS501 2 3 4

C

D

F

A

B

E

5 6 7 8

Grating waveform

45°

0°

75°

60°

30°

90°

Ech → Xch 20mV/div, ACFch → Ych 20mV/div, AC

DEH-3750MP/XU/GS 515 6 7 8

C

D

F

A

B

E

1 2 3 4

6.3 ERROR MODE

- Error Messages

Error is displayed with number for Error cause when CD is inoperative or stops with Error during operation.The purpose is to reduce nonsense calls from users as well as to assist all related analysis and repair for defects at service station.

(1) Basic Display Method

1) When CSMOD (CD mode area for system) is SERRORM, Error code will be written in DMIN (minutes area for display), DSEC (seconds area for display). The same data shall be written in DMIN and DSEC. DTNO is blank as usual.

2) Display Example of Head Unit

The following is about LCD display ability. xx is Error number.

8 digits 6 digits 4 digits

ERROR–xx ERR–xx E–xx

(2) Error Code List

No. Classification Contents Details • Cause

10 Electricity Carriage Home NG CRG can’t move to the inner.

CRG can’t move from the inner.

→ HOME SW failure, CRG movement failure.

11 Electricity Focus Search NG Focus can’t be caught.

→ Back of Disc / Severe dirt and vibration.

23 Disc File Format NG Contents are stored in an incompatible file format.

→ The contents in a CD-ROM disc inserted are recorded in a file format other than ISO9660 Level-1 and 2.

22 Disc Impossible to play There is no playable MP3 or WMA file present in a disc.

→ No MP3 or WMA file exists in a CD-ROM disc inserted.

17 Electricity Setup NG AGC protection doesn’t work, out of Focus soon.

→ Scratch on Disc/Severe dirt and vibration.

12 Electricity Spindle Lock NG Not spindle, lock. Wrong subcode (can’t read).

Subcode NG

RF-amp NG

→ Defective Spindle. Scratch and dirt on Disc. Intense vibration.

The appropriate gain of the RF amp cannot be obtained.

→ Defective spindle.

→ Blanc CD-R disc. Disc inserted upside down.

→ Scratched or dirty disc. Severe vibration. Abnormal CD signals.

30 Electricity Search Time Out Can’t reach the target address.

→ Defective CRG/tracking, or scratch on Disc.

→ All TRK Nos. In a disc inserted are specified as a track which should be skipped, in the track skip information.

44 Disc Impossible to play There is no playable TRK No. present in a disc.

50 Mecha Disc Load / Eject NG Disc loading/ejection cannot be complete.

→ Foreign objects entered into the mechanism. Disc caught in between during loading/ejection.

A0 System Power NG Power supply (VD) isn’t connected to the ground.

→ Defective SW transistor. Abnormal power (failed connector)

OR

Err–xx

Note : Error doesn’t display in mechanism only. (CD off causes mechanism off) If TOC can’t be read, error wouldn’t occur, but mechanism still continues its operation. The upper digits of error code is mainly classified by 3 kinds as follows: 1x: Setup related error, 3x: Search related error, Ax: Other errors.

DEH-3750MP/XU/GS521 2 3 4

C

D

F

A

B

E

5 6 7 8

6.4 SYSTEM MICROCOMPUTER TEST PROGRAM

- PCL OutputIn the normal operation mode (with the detachable panel installed, the ACC switched ON, the standby mode cancelled), shift the TESTIN (Pin 15) terminal to H. The clock signal is output from the PCL terminal (Pin 14). The frequency of the clock signal is 786.432kHz that is one 16th of the fundamental frequency. The clock signal should be 786.432kHz ± 31.5Hz. If the clock signal is out of the range, the X'tal (X601) should be replaced with new one.

DEH-3750MP/XU/GS 535 6 7 8

C

D

F

A

B

E

1 2 3 4

7. GENERAL INFORMATION7.1 DIAGNOSIS7.1.1 DISASSEMBLY

- Removing the CD Mechanism Module (Fig.1)

1

Fig.1

- Removing the Case (not shown)

Grille Assy

- Removing the Grille Assy (Fig.1)

1. Remove the Case.

CD Mechanism Module

1

1

1

1

Fig.2Tuner Amp Unit

- Removing the Tuner Amp Unit (Fig.2)

Remove the screw.1

Remove the four screws.

Disconnect the connector and then remove theCD Mechanism Module.

2 Release the two latchs and then remove the Grille Assy.

2 2

1

33

3

2 22

2 Straighten the tabs at three locations indicated.

3 Remove the three screws and then remove the Tuner Amp Unit.

DEH-3750MP/XU/GS541 2 3 4

C

D

F

A

B

E

5 6 7 8

- How to hold the Mechanism Unit1. Hold the top and bottom frame.2. Do not squeeze top frame's front portion too tight, because it is fragile.

- Removing the Upper and Lower Frames1. With a disc clamped, remove the four springs (A), the two springs (B), the two springs (C), and the four screws.2. To remove the upper frame, open it on the fulcrum A.3. While lifting the carriage mechanism, remove the three dampers.4. With the frames removed, insert the connectors coming from the main unit and eject the disc.Caution: Before installing the carriage mechanism in the frames, be sure to apply some alcohol to the dampers and set the mechanism to the clamp mode.

Do not squeeze.

Lower FrameDamper

Carriage Mechanism

A

C

A

B

B

Damper

Damper

C

A

A

A

Upper Frame

DEH-3750MP/XU/GS 555 6 7 8

C

D

F

A

B

E

1 2 3 4

- Removing the Pickup Unit1. Apply shorting solder to the Pickup flexible cable. Disconnect the cable.2. Set the mechanism to the clamp mode.3. Remove the lead wires from the inner holder.4. Remove the washer, styling holder, change arm, and pickup lock arm.5. While releasing from the hook of the inner holder, lift the end of the feed screw.Caution: In assembling, move the planet gear to the load/eject position before setting the feed screw in the inner holder.

Shorting Solder

Planet Gear

Change Arm

Inner Holder

Styling Holder

Feed Screw

Washer

Pickup Lock Arm

DEH-3750MP/XU/GS561 2 3 4

C

D

F

A

B

E

5 6 7 8

7.1.2 CONNECTOR FUNCTION DESCRIPTION

Pin No.12345678

B.UPGNDACCNCNCB.REMNCNC

Pin No.9

10111213141516

RL-FL-RL+FL+RR-FR-RR+FR+

ANTENNA JACK REAR OUTPUT

10A

16 2115

1413

1211

109

87

65

43

DEH-3750MP/XU/GS 575 6 7 8

C

D

F

A

B

E

1 2 3 4

7.2 PARTS7.2.1 IC

Pin No.1

2, 34

5, 6789

101112131415161718

19, 202122232425262728293031323334

35, 3637383940414243

44, 454647484950515253545556575859606162

Function and OperationModel select inputNot usedGNDNot usedVDDDisplay microcomputer data inputDisplay microcomputer communication data outputA/D converter power supply outputPLL data inputPLL data outputPLL clock outputClock adjustment outputTest program inputP-BUS serial data inputP-BUS serial data outputP-BUS serial clock input/outputNot usedDisplay microcomputer chip select outputIllumination power outputNot usedCD LSI reset control outputP-PUS reset signal outputCD LSI strobe outputP-BUS reception enable signal input/outputDriver outputLoad/eject outputDriver control outputNot usedOutput for dark current reduction circuitGNDTEL mute inputRotary volume input 0, 1ROM collection data outputROM collection clock outputROM collection chip select outputRDS decoder receiving output (Not used)P-BUS serial pole request inputNot usedSystem power outputNot usedWired remote control inputIllumination inputSystem mute outputAuto antenna control outputNot usedE.VOL strobe outputE.VOL data outputE.VOL clock outputNot usedPLL chip enable output 2PLL chip enable outputRDS LK input (Not used)RDS clock input (Not used)RDS 57K input (Not used)ResetPLL lock detection inputRDS clock input

Pin NameMODEL1NCAVSSNCAVREF1KYDTDPDTADPWTUNPDITUNPDOTUNPCKPCLTESTINBSIBDATABSCKNCswvddILMPWNCXRSTbrstXSTBbrxenCONTLOEJCLCONTNCDALMONVSSTELINROT0, 1ROMDATAROMCLKROMCSRECEIVEbsrqNCSYSPWNCSTRKEY2isensMUTEANTPWNCVSTVDTVCKNCTUNPCE2TUNPCERDTRDSLKRDS57KRESETLDETRCK

I/OI

IOOIOOOIIOI/O

OO

OOOI/OOOO

O

IIOOO I

O

IIOO

OOO

OO

II

- Pin Functions(PE5460A)

DEH-3750MP/XU/GS581 2 3 4

C

D

F

A

B

E

5 6 7 8

20

21 40

41

60

6180

1

* PE5460A

Pin No.636465666768

69, 7071727374757677787980

Pin NameasensbsensdsenssourceVSSVDDX2, 1IC(VPP)NCVSSAVDDAVREF1SLTEMPVDSENSDISCSENSSTRKEY1

I/OIIII

IIIII

Function and OperationACC sense inputBack up sense inputGrille detach sense inputSource sense inputGNDVDDCrystal oscillator connection pinGNDNot usedVSSVDDVDDSignal level inputTemperature detection inputVD power supply short circuit inputDISC loading detection inputWired remote control input

IC's marked by * are MOS type.Be careful in handling them because they are very liable to be damaged by electrostatic induction.

BA33BC0FP

-

+

Vref

321VCCNCOUT

Vref

OCP TSD

DEH-3750MP/XU/GS 595 6 7 8

C

D

F

A

B

E

1 2 3 4

- Pin Functions(PD6340A)Pin No. Pin Name I/O Function and Operation

1-5 SEG4-0 O LCD segment output6-9 COM3-0 O LCD common output 10 VLCD LCD drive power supply

11-14 KST3-0 O Key strobe output15,16 KDT0,1 I Key data input (analogue input)

17 REW I Remote control reception input18 DPDT I Display data input19 NC Not used20 KYDT O Key data output21 MODA GND22 X0 Crystal oscillator connection pin23 X1 Crystal oscillator connection pin24 VSS GND

25,26 KDT2,3 I Key data input27 NC Not used28 KST4 O Key strobe output

29-32 NC Not used33-55 SEG35-13 O LCD segment output

56 VDD Power supply57-64 SEG12-5 O LCD segment output

* PD6340A

NJM2388F84

49

48 33

32

17

161

64

1 2 3

VD

D

GN

D

5 4

VO

UT

N.C

.

N.C

.

Vref

DEH-3750MP/XU/GS601 2 3 4

C

D

F

A

B

E

5 6 7 8

- Pin Functions(UPD63763GJ) Pin No. Pin Name I/O Function and Operation 1 D.VDD Power supply for digital circuits 2 D1.GND GND for 1.6V digital circuits 3 reset I Input of reset 4-8 AB12-8 I Address bus 12-8 from the microcomputer 9-16 AD7-0 I/O Address/data bus 7-0 to the microcomputer 17 cs I Chip selection 18 ASTB I Address strobe 19 read I Control signals(read) 20 write I Control signals(write) 21 wait O Control signals(wait) 22 INTQ O Interruption signals to the external microcomputer 23, 24 IFMODE0, 1 I Switching the microcomputer I/F 0, 1 25 D1.VDD Power supply for 1.6V digital circuits 26 DA.VDD Power supply for DAC 27 ROUT O Output of audio for the right channel 28 DA.GND GND for DAC 29 REGC Connected to the capacitor for band gap 30 DA.GND GND for DAC 31 LOUT O Output of audio for the left channel 32 DA.VDD Power supply for DAC 33 X.VDD Power supply for the crystal oscillator 34 XTAL I Connected to the crystal oscillator(16.9344MHz) 35 xtal O Connected to the crystal oscillator(16.9344MHz) 36 X.GND Ground for the crystal oscillator 37 VDDREG15 Control of 1.6V regulator 38 PWMSW0 I Setup 0 for PWM output(SD, MD) 39-41 TEST3-1 I Connected to GND 42 PWMSW1 I Setup 1 for PWM output(FD, TD) 43 TESTEN I Connected to GND 44 D1.GND GND for 1.6V digital circuits 45 DIN I Input of audio data 46 DOUT O Output of audio data 47 SCKIN I Clock input for audio data 48 SCKO O Clock output for audio data 49 LRCKIN I Input of LRCK for audio data 50 LRCK O Output LRCK for audio data 51 xtalen I Permission to oscillate 16.9344MHz 52 D1.VDD Power supply for 1.6V digital circuits 53 RFCK/HOLD O Output of RFCK/HOLD signal 54 WFCK/MIRR O Output of WFCK/MIRR signal 55 PLCK/RFOK O Output of PLCK/Output of RFOK 56 LOCK/RFOK O Output of LRCK/Output of RFOK 57 C1D1/C8M O Information on error correction/C8M : 8MHz 58 C1D2/C16M O Information on error correction/C16M : 16MHz 59 C2D1/RMUTE O Information on error correction/Mute for Rch 60 C2D2/LMUTE O Information on error correction/Mute for Lch 61 C2D3/SHOCK O Information on error correction/Detection of vibration 62 D1.GND GND for 1.6V digital circuits 63 C33M O Output of 33.8688MHz(CLK for SDRAM) 64 (rcs) O DRAM cs 65 RA11 O Output of DRAM address 11 66 (CKE) O Output of DRAM CKE 67 ras O Output of DRAM ras 68 cas)(LDQM) O Output of DRAM lower cas(LDQM) 69 cas!(UDQM) O Output of DRAM upper cas(UDQM) 70 we O Output of DRAM we 71 oe(cas) O Output of DRAM oe(cas) 72 D.GND Ground for digital circuits 73-88 RDB0-15 I/O Input/output of DRAM data0-15 89-99 RA0-10 O Output of DRAM address0-10

DEH-3750MP/XU/GS 615 6 7 8

C

D

F

A

B

E

1 2 3 4

Pin No. Pin Name I/O Function and Operation 100 D.VDD Power supply for digital circuits 101 FD+ O Output of focus drive PWM + 102 FD- O Output of focus drive PWM - 103 TD+ O Output of tracking drive PWM + 104 TD- O Output of tracking drive PWM - 105 SD+ O Output of thread drive PWM + 106 SD- O Output of thread drive PWM - 107 MD+ O Output of spindle drive PWM + 108 MD- O Output of spindle drive PWM - 109 REFOUTSV O REFOUT for servo 110 AD.VDD Power supply for ADC 111 EFM O Output of EFM signals 112 ASY I Input of asymmetry 113 ATEST O Analog tests 114 RFI I Input of RF 115 AD.GND Ground for the analog system 116 AGCO O Output of RF 117 C3T O Connection to the capacitor for detecting 3T 118 AGCI I Input of AGC 119 RFO O Output of RF(AGC) 120, 121 EQ2, 1 I Equalizer 2, 1 122 RF2- I Reversal input of RF2 123 RF- I Reversal input of RF 124 A.GND Ground for the analog system 125 A I Input of A 126 C I Input of C 127 B I Input of B 128 D I Input of D 129 F I Input of F 130 E I Input of E 131 VREFIN I Input of reference voltage 132 A.VDD Power supply for the analog system 133 REFOUT O Output of reference voltage 134 REFC I Connected to the capacitor for output of REFOUT 135 FE- I Reversal input of FE 136 FEO O Output of FE 137 ADIN I Input of FE, TE A/D converter 138 TE- I Reversal input of TE 139 TEO O Output of TE 140 TE2 O TE2 141 TEC I TEC 142 LD O Output of LD 143 PD I Input of PD 144 D.GND Ground for digital circuits

* UPD63763GJ

72

73108

109

36

37

1

144

DEH-3750MP/XU/GS621 2 3 4

C

D

F

A

B

E

5 6 7 8

- Pin Functions(PE5454A) Pin No. Pin Name I/O Format Function and Operation 1 AVREF A power supply Positive power supply(5V) 2 AVSS A power supply GND 3 RFOK O C Output of state of RFOK 4 NC Not used 5 EVDD E power supply Positive power supply 6, 7 NC Not used 8 IC/FLMD0 IC : VSS direct connection/FLMOD0 : Pull-down 9 VDD Positive power supply(5V) 10 REGC Connected to the capacity stabilizing output of the regulator 11 VSS GND 12 X1 I Oscillator connection for mainclock 13 X2 Oscillator connection for mainclock 14 reset I System reset input 15 XT1 I Connected to the oscillator for subclock (connected to VSS via the resistor) 16 XT2 Connected to the oscillator for subclock(Open) 17 NC Connected to EVDD or EVSS via the resistor 18 NC Not used 19 xint I C CD LSI interruption signal input 20 NC Connected to VSS via the resistor 21 brst I P-Bus reset input 22 BSI I P-Bus serial data input 23 BSO O C P-Bus serial data output 24 bsck I/O /C P-Bus serial clock input/output 25 FTXD O C For flash rewriting output(transmitted signal) 26 FRXD I For flash rewriting input(received signal) 27 BRXEN I/O /C It is possible to receive P-Bus input/output 28 bsrq I/O /C P-Bus service request demand input/output 29 NC Not used 30 DSCSNS I Disc state sense input 31 8EJ(S905) I Input of detection of 8 cm disc ejection 32 12EJ(S904) I Input of detection of 12 cm disc ejection 33 EVSS E power supply GND 34 EVDD E power supply Positive power supply 35, 36 SRAMLEVEL0, 1 O C SRAM level meter output 37 EMPH O C Emphasis information output 38 emph O C Emphasis information output 39-42 NC Not used 43 adena O C A/D reference voltage supply control output 44 LRCKOK O C (DOUT mute output) 45 SRAMLEVEL2 O C SRAM level meter output 46 CD3VON O C CD +3.3V power supply control output 47 CONT O C Servo driver power supply control output 48 xrst O C CD LSI reset control output 49 VDCONT O C VD power supply control output 50 ROMDATA I/O /C E2PROM data input/output 51 ROMCS O C E2PROM chip selection output 52 ROMCK O C E2PROM clock output 53 LOEJ O C The direction change output of LOAD/EJECT 54 CLCONT O C Driver input change output 55 CDMUTE O C CD mute control output 56-58 NC Not used 59 xcs O C CD LSI chip selection output 60 NC Not used 61 xwait I CD LSI write control signal input 62 CLKOUT O C Internal system clock output(Open) 63 LOCK I Spindle lock input 64 NC Not used 65 xwrite O CD LSI write control signal output 66 NC Not used

DEH-3750MP/XU/GS 635 6 7 8

C

D

F

A

B

E

1 2 3 4

Pin No. Pin Name I/O Format Function and Operation 67 xread O CD LSI read control signal output 68 XASTB O CD LSI address strobe output 69 BVSS B power supply GND 70 BVDD B power supply Positive power supply 71-83 AD0-12 I/O /C Address/data Bus 0-12 84-86 NC Not used 87 FMODE I For flash rewriting Connected to VSS via the resistor 88 FLRQ O C For flash rewriting 89-93 NC Not used 94 csens I Flap closing sense input 95 TYPE_A/D I CD-DA analog/digital output change setup 96 testin I Chip check test program starting input 97 HOME I Home SW sense input 98 TEMP I Temperature information sense input 99 VDSENS I VD power supply short sense input 100 NC Not used

* PE5454A

25

26

50

5175

76

100

1

NJM2885DL1-33

Format Meaning

C CMOS

IN

1

GND

2

OUT

3

BandgapReference

ThermalProtection

+-

DEH-3750MP/XU/GS641 2 3 4

C

D

F

A

B

E

5 6 7 8

No. Symbol I/O Explain1 AMANT I AM antenna input AM antenna input high impedance AMANT pin is connected with

an all antenna by way of 4.7µH. (LAU type inductor) A series circuit including an inductor and a resistor is connected with RF ground for the countermeasure against the hum of power transmission line.

2 RFGND RF ground Ground of antenna block3 FMANT I FM antenna input Input of FM antenna 75Ω Surge absorber(DSP-201M-S00B) is necessary.4 VCC power supply The power supply for analog block. D.C 8.4V ± 0.3V5 SL O signal level Output of FM/AM signals level6 CE2 I chip enable-2 Chip enable for EEPROM ”Low” active7 WC I write control You can write EEPROM, when EEPROM write control is “Low”.

Ordinary non connection8 CE1 I chip enable-1 Chip enable for AF•RF ”High” active9 CK I clock Clock

10 DI I data in Data input11 NC non connection Not used12 OSCGND osc ground Ground of oscillator block13 ROM_VDD power supply Power supply for EEPROM pin 13 is connected with a power supply of

micro computer.14 DO O data out Data output15 DGND digital ground Ground of digital block16 NC non connection Not used17 VDD_3.3 power supply The power supply for digital block. 3.3V ± 0.2V18 NC non connection Not used19 NC non connection Not used20 NC non connection Not used21 NC non connection Not used22 AUDIOGND audio ground Ground of audio block23 L ch O L channel output FM stereo “L-ch” signal output or AM audio output 24 R ch O R channel output FM stereo “R-ch” signal output or AM audio output

FMRF

ANT adjRF adj

FM ANT

T51 CF52CF51

RFG

ND

OS

CG

ND

DG

ND

AU

DIO

GN

D

NC

VC

C

VD

D_3

.3

3.3V 2.5VIC 4

3.3V 2.5V

←

IC 22.5V

WC

CE

2

RO

M_V

DD SL DI

CK

CE

1

NC

DO

NC

NC

NC

NC

7 6 13 5 10 9 8 11 14 18 19 20 21

1

3

2 12 15 22 16 4 17

IC 13.3V

AM ANT FMRFATT

LPFOSC

IC 3 EEPROM5.0V

IC 55V 3.3V←

ATT

MIXER, IF AMP DET, FM MPX

24

23

Rch

Lch

- FM/AM Tuner Unit

DEH-3750MP/XU/GS 655 6 7 8

C

D

F

A

B

E

1 2 3 4

7.2.2 DISPLAY

- LCD(YAW5027)(DEH-3750MP/XU/GS, DEH-3750MP/XU/CN)- LCD(YAW5015)(DEH-3770MP/XU/CS)

SE

GM

EN

T

CO

MM

ON

DEH-3750MP/XU/GS661 2 3 4

C

D

F

A

B

E

5 6 7 8

7.3 OPERATIONAL FLOW CHART

AVREF1, VDD, AVDD=5VPin 7, 68, 74, 75

Power ON

bsens=L

asens=L

bsensPin 64

asensPin 63

swvdd←LPin 21

Source keys operative

Completes power-on operation.(After that, proceed to each source operation.)

SYSPW←HPin 43

Starts communication with Grille microcomputer.

Source ON

300ms

300ms

In case of the above signal, the communication with Grille microcomputer may fail.If the time interval is not 300msec, the oscillator may be defective.

DEH-3750MP/XU/GS 675 6 7 8

pioneer deh-3750mp

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