technics sa-dv280eg sch

From POWERTRANSFORMER

1

8

W501

2

3

4

5

6

7

9

12

13

14

15

16

17

18

A.GND

+B(10V)

SUR L

SUR R

19

11

10

CT.GND

SH FL1

DATA

D.GND

TUNER L/C

TUNER Rch

Lch IN

Rch IN

S.W

MIC

-B(-10V)

V.GND

CE/REQ

CLK

SH FL2

20SYNC

+B5

Rch

Rch

-B3

To SOUND PROCESSOR(SH-DV280)BLOCK DIAGRAM

LC72

CE

LC72

DI/S

T

LC72

CK

DAT

A1

CLK

1

DAT

AIN

CE

1

3 4 5

LC72

DO

2

C2BBFD000317IC901

SYSTEM CONTROL / FL DRIVE

Rch

94

SH

CS

97

SH

CK

9596

SH

DO

SH

DI

SH

SY

NC

100

SD

21

SH

RE

Q

19202122 23

AMMIX

12

LEVELDET

FM IF

S-CURVE

2

3

REG

4

13

AGC

COMP

68 1110

AMRF

AMP

AMIF

AM/FMIF

BUFFER

24

1

FMDET

AMOSC

BUFEER

ALC

TUNINGDRIVE

18

BUFFERAMP

FM ANT

RF AMP FMMIXER

FM OSC

9

Vcc

+B(FM)

FM IFAMP

+B2AMIFT

1

20

7.2MHzXIN

XOUT

PHASE DETCHARGE PUMP

CE 23DI

4CL

D0 5

98710

BO

4

BO

3

IO1

15

VD

D

16 PD

IFIN11

BO

2

1/214

13

FM IN

AM IN

Powersupply(FM:ON)

+B2

+B1

+B(FM)

SD

STEREOSWITCH

17

FM / AM I F AMP,DET / AM OSC,MIX / FM MPX(LA1833MN)

15

PILOTCANCEL

PHASEDET

16

VCO FFFF PILOTDETFF

AMDET

DECODER

BO1 6

IO2

12

19 Vss PowerON

RESET

PLL FREQUENCYSYNTHESIZER(LC72131M)

+B2

GND

5 7

ST

MO

NO

FM

/AM

SD

FM

DE

T

FM IFIN

AMOSCOUT

AF

C

AM

OS

C

AM

RF

IN

AG

C

AM

OU

T

DE

TO

UT

PIL

OT

IN MP

XIN

PIL

OT

OU

T

Lch

14

Rch

17

18

AIN

AOUT

AMANTCOIL

AMOSCCOIL

AM ANT

+B2

ST

RQ

AM

IFINA

MM

IXO

UT

Rch

IFT

+B(FM)

+B(FM)

+B(FM)

FM:ONDET

CE1

DATA1

CLK1

DATA IN

SW CONT.

12

X0

X1

14

A B C

11 10 9

G8

2

13

BU4053BCFE2IC201

SIGNAL SELECTOR 1

15Y1

Y0

VDD16

+B4

VSS7

-B3

6

ST

/AV.

6CH

SD

Z101 TUNER UNIT (RAN0005EM-2)

REFERENCEDIVIDER

SWALLOW COUNTER1/6,1/17 4BIT

12 BITPROGRAMMABLE

DIVIDER

DATA SHIFTREGISTER LATCH

UNIVERSALCOUNTER

MUTING

Q605

MUTING

Q607(Q608)

93

MU

TE

3

MUTINGCONT.+B4

Q902

10

SE

L/T

UN

ER

MIC

DE

T

25

+B8

SA-DV280(EB,EG) BLOCK DIAGRAM

SPEAKERS

R chPHONES

VR901(VOLUME)

24 23

VR

JOG

A

VR

JOG

B

KEYSWITCH

(S901~908,910~915)

19 20

KE

YT

U

KE

YK

AR

AO

KE

Q901,D904 RESET

12

RE

SE

T

+B8

90

VD

D2

+B9

VD

D1

VD

D3

VD

D4

18 46 72

C2BBFD000317IC901

SYSTEM CONTROL / FL DRIVE

29

RE

MO

-C

ON

Z901(REMOTESENSOR)

+B8

1~8G

30~37

P1~

38

38~45,47~5052~71,73~78

FL901FL DISPLAY

D931,933

79

RE

GIN

0

82

TIM

ER

83

S.W

LED

D951(DIGITAL

S.WOOFER)

81

STA

ND

-BY

D954( PLAY/REC) D306

( )

1621

GND

104 7

5

1(2)

6

3

20

15

19(18)

26(25)

23

24

RSN311W64BIC601

POWER AMP

+B3D601

-B1

D602

-B2

Q601,602

9

+B7

13

PO

WE

R

98

ED

ET

HP

SW

26

SA

SY

NC

AC

IN

88

PO

WE

RP

OW

ER

11

+B8

1

CH

EC

K

DE

T

28

RD

SD

ATA

RD

SC

LK

27

14

N

Q503,D558

51

-VP

-VP

86

MU

TE

D906PRO-

TECTOR

D974

SWITCH-ING

D907

RE

GIN

122

8

11(12)

16 17

X901(6MHz)

XC

IN

XC

OU

T

13 14

X902(32.7kHz)

XIN

XO

UT

80

MUTING

Q606

AC

IN

POWER CONTROLCIRCUIT

POWER CONTROL/PROTECTION CIRCUIT

C1BB00000527IC151

RDS SIGNAL DEMODULATOR

CLOCKRECOVERY(1187.5kHz)

DATA

CLK

IDRRDS-IDDETECT/

RAM

57kHzBPF

(SCF)

PLL(57kHz)

VREF

CINFLOUTVREFVDDA/D

VssA/D

MPX IN

TEST

XOUTXIN

OSC/DIVIDER

CLK(4.332MHz)

89

7

2

4,10

3,11

+B2

1 5 6

14

15

16

X151(4.33MHz)

REFERENCEVOLTAGE

TEST

ANTIALIASINGFILTER

SMOOTHINGFILTER

DATADECODER

MODE

12 13

RST

91M

UT

E2

MUTINGCONT.+B5

Q612

MUTING

Q609(Q610)

SURROUND(8 )Ω

CENTER(8 )Ω

HF(6 )Ω

LF(8 )Ω

Q551,554,555

SIGNALLEVEL DET.

-B3 +B4

MFAN MOTOR

MOTORDRIVE

Q553,556,557

15

Vss

89

Vss

2


PO

WE

RT

RA

NS

FO

RM

ER

F1

AC IN

L701

T701

D702,704,752,754,755

Q707

+B4

-B3

Q702,705

Z701RL702

Q791

PO

WE

RT

RA

NS

FO

RM

ER

T702

D741~744

-B1

-B2

Q703,704

+B7

D701,703,751,753,761

Q701

+B1

Q723

+B2

Q711,712,725 D717~720

+B5

D705-VP

FL1

FL2

FL DISPLAY(FL901)

Q708,709

+B3

AC IN

SHSYNC

POWER

Q726

+B6

+B8

+B9

D902

D901

SASYNC

D746

REGULATOR/STABILIZER

REGULATOR

REGULATOR

REGULATOR

SWITCH-ING

REGULATOR

REGULATOR

RELAYDRIVE

+B6

D740

REGULATOR/STABILIZER


NOTES : SIGNAL LINE: FM SIGNAL: AM SIGNAL: FM OSC SIGNAL: AM OSC SIGNAL: AUDIO SIGNAL

( ) indicates pin No. Right channel.

1 2 3 4 5 6 7 8 9 10 11 12 13

A

B

C

D

E

F

G

H

SA-DV280(EB,EG) OPERATION, MAIN P.C.B.

Note: This printed circuit board diagram may be modified at any time with the development of new technology.

MAIN P.C.B.B

10987654321

D60

7R

635

R71

9J

J

W902A

JJ

J

J

J

J

J

15

13

11

9

7

5

3

1

14

12

10

8

6

4

2

C664C725

JJ

JJ JJ

J

J

JJ

J

J J JJ

J

J

R23

0

C740

C73

3

C73

5

R76

4R

763

D737 BCE

Q723

W901A

W50120

18

16

14

12

10

8

6

4

2

19

17

15

13

11

9

7

5

3

1

15

13

11

9

7

5

3

1

14

12

10

8

6

4

2

R694

R76

1

R696

R695

J

J

J

J

JJ

D65

7

D65

9

C70

5

D611

BCE

Q612

JJJJ

JJJJ

J

J

J

J

C737

C70

6

J

R77

6

R738

R739

R708E C B Q708

E C B Q709ECB

Q707

D72

1

C70

7

C70

8

C50

9

C51

0

C20

2

C714

C73

1

C74

1

D720

D719

D71

8

D70

5

D71

7 C71

5

C60

2 C65

6

C65

5

C55

4

C601

C555

C622

C660

C659

C371

C551

E C BQ609

E C B

Q610

E C BQ554

E C BQ607E C B

Q608

E C BQ606

E C BQ605

E C B

Q555

BCE

Q602

BCE

Q551

BCEQ503

BCE

Q601

J J

J

J

1234567891011CP101

E602

R605R606R617R618R684R683

R604R603R686R685

R60

1R

614

R60

2

J

JJJ

JJ

J

J

J

J

J

JJJJ

J

R693R692

R56

4

R22

9

R62

8

R68

8R

687

R51

2R

511

R50

9

R20

4R

203

R727

R211

R51

0

R56

3

R558

R607

R608

R560

R569

R598R597

R570

R561

R591

R559R557

D55

5D552

D757

D658

D551

D75

6

C55

0

C647

C605

C606

C610

J JJ

J J

J E C BQ704

E C BQ703

C72

1

R572R544

R610

R619

R612R691

R624

R620R546R547

R638

J

J

C60

4

C60

8

C60

3

C60

7C

649

C6

09

C65

0C612

R627

C613

R555C614

C723

C552

C648

C619

C61

1

C72

4

R62

1R

615

R63

1R

632

R55

2R

551

R60

9

R61

1

R63

7R76

9R

721

R72

2

R64

8

R64

7

R76

7

R62

2

R55

6

R62

3

R79

7

R79

6

R72

9

R20

2R

205

JJ

C616

C617

C618

J

D558

J

J

D72

5

IC6012625242322212019181716151413121110987654321

J

J

J

J

J

J

JJ J

J

JJ

J

J

J

J

J

J

J

J

J

JJ

J

J

J J

J

JJ

W721A

W722A

10987654321

4321

J

J

J

C70

9

C76

1

D755

D754

D761

D753

D702

D70

4

D752

D701

D751

D703

D601

D602

C704 C701

C703C702

J

J

J

J

J

JJ

J

J

J

JJ

J

J

J

J

E601L602

L601

L605

L606

C63

9

C63

7C

635

C63

6C

632

JK601

JK602

1 2 3 4CP602

5 6 7 8

J

JJ

C62

6

C62

0

C63

0

C62

1

C63

1

C64

2

R651

R642R652

R650

R649

R639

R64

1R64

0

C627C629

C628

C732

C641C640

To SOUND PROCESSOR

LF(8 )Ω

HF(6 )Ω

LF(8 )Ω

HF(6 )Ω

CN781

N

Rch

Lch

SPEAKERS

D58

2

D58

1

D583

D553

D554

E C B

Q553

E C B

Q557C559 R568

R566

R56

7

1 2

JK551

E C BQ556

C20

1

158

910 1516

IC201

D20

1

1 2 3 4 5 6 8 910 1112CP601

7

(REP3337E-M)

NN

C556NN

OPERATION P.C.B.AVR901

(VOLUME)

C902

C92

8

C92

2

C92

0

R92

9

R98

8

R99

1

R97

5

R97

4

R93

4R

937

R93

0R

931

R918

R957R919

R932

R956R987

C915

D906

JJ

J

J J

J

J

JJ

J

J

J

J

J

J

JJ

J

J

J

J

R99

5R

942

R94

1

R91

2

W902B15

13

11

9

7

5

3

1

14

12

10

8

6

4

2

S913

D95

1

W901B15

13

11

9

7

5

3

1

14

12

10

8

6

4

2

D90

2

D90

1J

R92

6

R99

3

R95

8

R969

R959 R997

R996R990R

936

R93

5

R99

9

R95

4

C92

1

C903

D973

R939R960

R986

JJJ

J

J

J

C92

6

C90

5

D93

3D931

D90

5

J

L901

L902

JJ

C90

1

FL90112

56789

1011121314151617181920212223242526272829303132333435363738394041424344454647484950

5354

L153

JJ

J

R15

5

15

1015

2025

3035

4045

50

5560

31

51

65

7570

808185

9095

100

IC901

R95

3

R95

1

R94

3R

961

R92

4R

925

R92

2

R92

1

J

J

J

R952

R976

R928

R950

R945

R962 R949

C91

2

C90

8 C90

7

C925

C909C904

C911

C910

D907

J

J

J

J

J321

X901

J

J

X902

C914

C916

C918

BCE

Q901

R15

1R

152

R15

3R

154

L152

R158

C15

2

C15

3

C154

L151

JC919

C151

C927Z901

(SENSOR)

D15

1

C16

0

C15

5

C15

6

X15

1

IC151

158

910 1615

C15

7

C15

9R

944

R946

C92

4

C91

7

D97

4

C15

8

S901( / )

D306( )

R90

1

J

S904( PLAY/ REC)

R904

R157

R903

R902

S902(CLOCK/TIMER)

C923

JK903(PHONES)

2

1 43

56

7

W905

C39

5

C39

6J

R90

6R

905

S907(SET)

S906(TUNING MODE)

S905(FM AUTO/

MONO)

S903(—DEMO)

J

J

J

JJ

R91

0R

909

S908(INPUT

SELECTOR)S910

(TUNING )

D90

4

R911

R994

R940

R907

S912(TUNER/BAND)

J

S911(TUNING )

R91

4 R91

5

R91

6R

913

J

S915(RDSDISP MODEPTY)

S914(RDSDISP MODEPS) J

DIGITALS.WOOFER

D95

4(

P

LAY

/

R

EC

)

321

1

2

3

ECB

Q902

D961R966

R965

(REP3337E-M)

N

C93

1

1 2 3 4 5 6 7 8 9 10 11 12 13

A

B

C

D

E

F

G

H

SA-DV280(EB,EG) AC IN, POWER TRANSFOMER(A)/(B), POWER SUPPLY P.C.B.

Note: This printed circuit board diagram may be modified at any time with the development of new technology.

POWER SUPPLY P.C.B.C

BCE

Q701

BCE

Q702

BCE

Q711

BCE

Q712

BCEQ725

E C BQ705

R725R723

C71

9

C717

C71

0

C72

0

W701B

D72

3

C71

8C

722

C73

4R

720

R72

4

R76

8

R749

R765

R753

R754

D758

D73

9

D73

8

J

D730

10987654321

(REP3337E-M)

POWER TRANSFORMER (A) P.C.B. E

W722BW721B123456789

10

1234

R793

CN710

CN709

CN708

CN707

CN706

CN705

CN704

CN703

CN702

CN701

FP792

R798

FP791

J

POWER TRANSFORMER (B) P.C.B. F

CN711

CN713

CN712

W1

W2

W3

J

J

J J

J J

T701(Power transformer)

(REP3337E-M)REP3338A-S . . . [EG]REP3338B-S . . . [EB]

JK701JK603

L701

FC

1F

C2

F1

T2A

Z701

C791

RL702

1

2

4 3

1234

CN601

56789

101112

1234

CN602

5678


R794

R773

R774

R795

R77

1R

772

R71

2

E C BQ791

E C BQ726

D500

D71

1

D74

6

D740

J

J

C754C758

D74

5

C75

9

R777

D74

2

D74

3

D74

1

D74

4

J

J

J

J

J

J

JC

755

C753

C634

W1

W2/W3 D74

7

AC IN P.C.B.D

AC IN

C644

C646C651

C652

C624

C633C625

C64

5

C64

3

R646

R645

R64

4R

643 L603

L604

C

SR

SL

230V 50Hz . . . [EG]230-240V 50Hz . . . [EB]

REP3338A-S . . . [EG]REP3338B-S . . . [EB]

CENTER/SURROUNDSPEAKERS

A

B

C

D

E

F

G

H

1 2 3 4 5 6 7 8 9 10 11 12

SA-DV280(EB,EG) OPERATION CIRCUIT DIAGRAM

SCHEMATIC DIAGRAM-1

S90

4(

PLA

Y/

RE

C)

FL901 (A2BB00000084)

1754632

T

S

S90

8( I

NP

UT

SE

LEC

TO

R)

S90

7( S

ET

)

S90

6( T

UN

ING

MO

DE

)

S90

5( F

MA

UT

O/M

ON

O)

JK903PHONES3.5mm STEREO

R99

715

0

R996150

D97

3M

A40

30M

TAC

921

1000

P

C92

235

V33

C92

025

V22

R92

210

KR

921

10K

R94

42.

2K

R9124.7K

R9113.3K

R9102.2K

R9091.8K

R9161.5K

R9151.2K

R9141K

R913820

R9073.3K

R9062.2K

R9051.8K

R9041.5K

R9031.2K

R9021K

R901820

FL DISPLAY

1 6 8 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 53 542 5 7 9

W905

S90

1(

/)

C92

825

V22

NOTE:The number which noted at the connectors on the schematic diagram as "SCHEMATIC DIAGRAM-1" or "SCHEMATIC DIAGRAM-2"indicates the schematic diagram serial number located on the left corner in the schematic diagram.A OPERATION CIRCUIT

C91

925

V22

C92

725

V22

C39

60.

047

C92

30.

1

C39

50.

047

D974MA165TA

C90

747

0P

C92

40.

1

C90

40.

01

R9241K

C90

847

0P

R9251K

S91

4( P

S)

S91

5( P

TY

)

S91

0(T

UN

ING

,)

S91

1( T

UN

ING

,)

S91

2(T

UN

ER

/BA

ND

)

S91

3(D

IGIT

AL

S.W

OO

FE

R)

(RDS DISP MODE)

A B C D

E

F G H I J K L M N O P Q R S T U

X

W

V

ABCDEFGHIJKLMNOPQRSTUVWXYZ

S90

2( C

LOC

K/T

IME

R)

S90

3(-

DE

MO

)

IC901C2BBFD000317SYSTEM CONTROL/FL DRIVE

CBA

Q901UN4212TARESET

R93

610

0

R91915K

R99147K

R91

810

KR

928

47K

L902

1H

D9011SS291TA

L901

10H

R95

133

0K

R95210M

ABCDEFGH

IJKLMNOPQRST

UV

WXYZ

R99

310

0K

D93

1M

A16

5TA

D93

3M

A16

5TA

R99

010

0K

C91

66.

3V10

0

D95

1LN

J301

MP

UJA

D(D

IGIT

AL

S.W

OO

FE

R)

R99

522

0

D95

4S

ELS

5923

C(

PLA

Y/

RE

C)

R98

61.

5K

D30

6S

ELS

5223

C(

)R

939

1.5K

C90

510

00P

C90

16.

3V10

0

R93

510

0R

934

100

R98

81K

R93

710

KR

987

1K

R9262.2K

C91

20.

1

R954100K

C92

610

00P

R96

01.

5KR

958

1K

R99

910

0K

R95

947

R96

92.

7K

D9021SS291TA

C90

30.

01

C90

210

V10

00

X902(32.7kHz)

C91

118

P

C91

020

P

X901(6MHz)

1

3

2

D90

51S

S29

1TA

EF IKL M NO Q

R9401K

R929 1KR930 1KR932 1KR931 1K

R97

610

0K

R9561K

R9571K

C91

50.

01C

925

1000

PR953 100

AB

CD

G

H

J

C91

450

V2.

2D

904

MA

165T

A

ABC

DE

A B C D E F G H I J K L M N O P Q R S T U V W X

1

11

21

2

12

22

3

13

23

4

14

24

5

15

25

6

16

26

7

17

27

8

18

28

9

19

29

10

20

30

3132333435363738394041424344454647484950

515253545556575859606162636465666768697071727374757677787980

81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

-VPP13P14P15P16P17P18P19P20P21P22P23P24P25P26P27P28P29P30P31P32VDD4P33P34P35P36P37P38REGIN0REGIN1

8GREMOCONRDS DATA

RDS CLKHP SW

MIC DETVR JOGAVR JOGBNC(GND)SH REQ

KEY KARAOKEKEY TU

VDD1XC OUT

XC INVss

X OUTX IN

RESETAC IN

SEL/ TUNERSEL TUNER

ST/ AV.6CHLC72 CK

LC72 DI/ STLC72 CELC72 DO

CHECK

STA

ND

-BY

TIM

ER

S.W

.LE

DLO

UN

GE

CH

OR

US

MU

TE

NC

PO

WE

RV

ss2

VD

D2

MU

TE

2N

CM

UT

E3

SH

CS

SH

DO

SH

DI

SH

CK

ED

ET

CR

TIM

ER

SD

VD

D3

P12

P11

P10 P9

P8

P7

P6

P5

P4

P3

P2

P1

1G 2G 3G 4G 5G 6G 7G

R99

410

0K

U

R94

94.

7KR

950

100

:AUDIO SIGNAL LINE: POSITIVE VOLTAGE LINE : NEGATIVE VOLTAGE LINE

5.1V

5.1V

2V/2ms.DIV.

5V

0V

5V

0VT 10ms.

2V/2ms.DIV.0V

5V

-30.1V

-30.1V-29.3V-29.3V-29.3V-26.3V-20.5V-29.3V-29.3V-29.3V-23.5V-20.5V-23.4V-23.4V-23.7V-20.7V-29.6V-29.6V-29.6V-23.7V-26.6V-26.5V

5.1V-29.5V-29.5V-26.5V-17.2V-5.3V

-10.3V0.4V

0V

-23.

4V-2

0.5V

-26.

3V-2

6.3V

5.1V

-23.

4V-2

0.5V

-26.

2V-2

9.2V

-26.

2V-2

6.2V

-26.

1V-2

6.3V

-23.

5V-2

3.5V

-25.

6V-2

7.5V

-27.

5V-2

5.5V

-23.

5V

-25.6V5.1V2.6V2.6V0.6V5.1V0V0V

1.4V5.1V5.1V5.1V2.3V2.3V

2.7V1.6V5V2.2V0V

5.1V5.1V4.6V0V0V2.5V

0V

5V

0V

5.1V

3.3V

1.9V

1.9V

1.4V0V

5.1V

5.1V

4.8V0V0V0V0V0V0V

FM / AM

-30V

4V

T 5.5ms.

0V

0V4V

T 5.5ms.-30V

FM / AM

3.3VP-P

F=6MHz

FM / AM

4.2VP-P

F=6MHz

FM / AM

5.2VP-P

F=32.7kHz

FM / AM

5.2VP-P

F=32.7kHz

FM / AM

2VP-P

F=32.7kHz

FM / AM

13 14 15 16 17 18 19 20 21 22 23 24

SA-DV280(EB,EG) OPERATION, MAIN CIRCUIT DIAGRAM

SCHEMATIC DIAGRAM-2

W901B

W902B

IC151C1BB00000527RDS SIGNALDEMODULATOR

1 2 3

X151

R1581K

R15

410

0K

R15

310

0K

123456789

101112131415

B ACOM

123456789

101112131415

Q902UN411FTAMUTING CONT.

A B C

1

2

3

4

5

6

7

8 9

10

11

12

13

14

15

16VREF

HPX IN

VDDA

VssA

FL OUT

C IN

TEST

X OUT

IDR

RDCL

RDDA

RST

MODE

VDDB

VssB

X IN

R96

222

K

VR901EVQVBXFK124B

(VOLUME)

R94

510

0

R96

122

KR

943

100

C91

70.

01

C15

510

00P

C15

310

00P

C16

010

00P

C15

96.

3V47

R15

21KR15

11K

C15

456

0PC

158

6.3V

47

C15116V10

D907MA165TA

M

BC

R9461K

C90

910

00P

C91

86.

3V10

0

D E A

R9411K

L153

1H

R15

512

0D

151

MA

4051

MTA

L151100 H

L152

100

H

C15

647

P

C15

747

P

ABCDEFGHI

JKL

NO

Q

S

T

A OPERATION CIRCUIT

R94

22.

2K

R9741K

C93

116

V10

R9653.9K

R9663.9K

D96

1M

A40

75M

TAR

975

22K

D906MA165TA

U

N

1

2

3

Z901B3RAD0000028(REMOTE SENSOR)

R15

71K

C152330P

W902A

W901A

CP101

C

F

G

B

AED

DETRch IN

CELch IN

DIDOCL

+B(2)SD

+B(1)T.GND

Q7072SB1417PQTAREGULATOR

Q7232SC3940AQSTAREGULATOR

R7634.7K

R230 1K

R229 1K

D72

1M

A43

00M

TAR

708

4.7K

C70

70.

047

C70

635

V10

C73

750

V10

0

ToSOUNDPROCESSOR(SH-DV280)

To TUNER UINTon SCHEMATICDIAGRAM-5/11,12-A

C73

50.

047

BA

R56

32.

7K

R56

42.

7K

C66016V10

C65916V10

R61

54.

7K

R61

44.

7K

R6313.9K

R6323.9K

C2020.1

R20

310

0K

R20

410

0K

C20

10.

1

C60216V10

C70

80.

047

R211270

D20

1M

A40

56M

TA

R6871.5K

R6881.5K

Q605,6062SD2144STAMUTING Q605

Q606

R68

31K

R61

74.

7K

21

3456789

1011

CBAX0X1VDD

GVssINHZ0Z1Y1 Y0

16 15 14 13 12 11 10 9

1 2 3 4 5 6 7 8

IC201BU4053BCFE2SIGNAL SELECTOR

C65516V10

C65616V10

R60

64.

7K

R60

54.

7K

2

15

3456789

1011121314

1

2

15

3456789

1011121314

1

20

21

3456789

10111213141516171819

K

LM

I

J

EF

CDEFG

EFG

ABCD

AB

G

H

C60

116

V10

R5982.2K

R5972.2K

R20

510

0K

HG

R20

210

0K

B

C

D

E

F

C50

90.

01C

510

0.01

R6931K

R6921K

C66

416

V10

C72

516

V47

A

C

R69

647

K

Q609,6102SD2144STAMUTING

Q609

Q610


B

CR69422K

R51147

R50947

R512 47 R510 47

W501

D719RL1N4003N02

D720RL1N4003N02

D717RL1N4003N02

D718RL1N4003N02

H

D

C

R695470

D61

1M

A40

51M

TA

C74

016

V10

C73

30.

047

D73

7M

A40

82LT

A

R764330

MAIN CIRCUITB

C7311000P

C74

10.

1

TUNER Lch/CTUNER Rch

A.GNDLch INRch IN

+B(10V)SUR LSUR R

S.WMIC

-B(-10V)V.GNDD.GND

CS/ REQCLK

DATACT GND

SH FL1SH FL2

SYNC

R6033.3K

A

B

B

R68

41K

A

C71

525

V68

00

C71

410

00P

D705RL1N4003N02

A

: POSITIVE VOLTAGE LINE

: NEGATIVE VOLTAGE LINE

-30.

1V

5.1V

:AUDIO SIGNAL LINE

6V

7.6V

3.3V

0V

3.3V

2.6V

2.6V

0V

5.1V

2.5V2.7V

2.5V

2.5V

5.1V

2.5V

2.5V

14.7V

10.4V

-37.3V-30.1V

-30.7V

14.7V7.2V

7.8V

-10V

-10V

0V

0V

-10.2V

5.1V

4.9V0V

-10V

0V0.7V

5.7V 0V 0V 0V 0V 0V

6V

7.2V

7.6V-10.4V

0V 0V -10.4V

: FM SIGNAL LINE: AM SIGNAL LINE

25 26 27 28 29 30 31 32 33 34 35 36

SA-DV280(EB,EG) MAIN,POWER SUPPLY CIRCUIT DIAGRAM

SCHEMATIC DIAGRAM-3

M

Q708UN4211TASWITCHING(POWER)

Q601 Q602

D75

6M

A70

0ATA

C60

347

0P

C60

447

0P

C60

747

0P

C60

847

0P

C64

910

00P

C65

010

00P

C60

510

00P

C60

610

00P

C6481000P

C61

70.

01

R63

715

K

R63

868

K

R619 120K

R622 120K

R621 150K

R624 150K

R620120K

R612 56K

R611 56K

R610 150K

R609 56K

R608 56K

R607 56K

C610 56P

C609 56P

C612 15P

C611 39P

C614 47P

C613 47P

R62

747

0K

C61

650

V0.

47

N

D60

1S

B36

0L65

08

D60

2S

B36

0L65

08

D75

4R

L1N

4003

N02

C76

10.

1

D70

11N

5402

BM

21C

709

0.1

IC601RSN311W64BPOWER AMPD

757

MA

700A

TA

123456789101112131415181920212223242526 1617

R6043.3K

R6013.3K

R6023.3K

R61

84.

7K

Q601,6022SC5398RSTAPROTECTOR

D6071SS291TA

L

K

D65

8M

A16

5TA

D65

7M

A16

5TA

B

A

R6851K

R6861K

Q607, 6082SD2144STAMUTING

Q607

Q608

C70

50.

01

G

R77

610

K

Q7092SD2144STASWITCHING(POWER)

R7383.9K

R73

947

K

C62

210

V10

0

D65

9M

A16

5TA

D75

11N

5402

BM

21

D7031N5402BM21

D75

3R

L1N

4003

N02

D76

1R

L1N

4003

N02

D75

5R

L1N

4003

N02

D75

21N

5402

BM

21

D70

21N

5402

BM

21

D7041N5402BM21

G

F

E

D

A B C

D558MA165TA

R54410K

R57

215

K

R648120

C61

80.

01

R6352.2K

C61

90.

1

Q5032SC5398RSTASWITCHING

C70

435

V47

00C

702

35V

4700

C70

335

V47

00C

701

35V

4700

R76

122

0

R62

822

K

R69168

R647270

R623120K

CN781

F

C

A

B

D

E

Q5512SA1995RSTASIGNAL LEVEL DET.

Q5552SD2144STASIGNAL LEVEL DET.

Q7022SB1548PQAUREGULATOR

Q7252SC5398RSTASTABILIZER Q705

2SA1995RSTASTABILIZER

Q7012SD2374PQAUREGULATOR

R55

610

0K

R55

710

KC

721

10V

100

D72

5M

A40

82LT

A

R729220C

723

0.04

7

C6391000P

C6401000P

C6411000P

C6421000P

C7320.022

C6471000P

D73

8M

A16

5TA

D73

0M

A40

91H

TA

R768100

R72

43.

9KC

718

25V

100

D72

3M

A41

50H

TA

R72

35.

6K

C71

90.

047

R72510

C72

40.

047

C71

00.

047

R54

618

K

R55

118

K

R55

247

K R55

522

K

C55

00.

01

D552MA165TA

D555MA4100MTA

R54

718

K

E602

E601

R74

91K

D73

9M

A16

5TA

POWER SUPPLY CIRCUITC1 1032 4 5 6 7 8 9

W701B

1 1032 4 5 6 7 8 9

R72

03.

9K

C73

450

V3.

3

D75

8M

A16

5TA

C72

225

V10

0 C72

00.

047

C71

716

V33

MAIN CIRCUITB

G

R76

522

0

N

R56

910

K D55

4M

A16

5TA

C37

16.

3V10

0


R568100

D55

3M

A70

0ATA

C55616V10 C

555

16V

10

Q5572SA1995RSTAMOTOR DRIVE

Q5532SD2144STAMOTOR DRIVE

R5702.2M

R56

010

0K

C5590.01

D58

1R

L1N

4003

N02

R56

722

FAN MOTOR

JK551

R56668K


M

R71

93.

3K

Q703,7042SD2137PQTAREGULATOR

R7962.2

Q703

Q704

R76927

R72

73.

9K

C55

416

V22

0

R561100K

C5520.01

R5594.7K

R5914.7K

C55

150

V2.

2

D55

1M

A16

5TA

1 2

D58

3R

L1N

4003

N02

N

R72

14.

7

R7222.2

AB

R75

30.

47

R7540.47

Q711,7122SB1548PQAUREGULATOR

Q711

R7972.2

R76727

R5582.2K

D58

2R

L1N

4003

N02

Q712

: POSITIVE VOLTAGE LINE: NEGATIVE VOLTAGE LINE :AUDIO SIGNAL LINE

7.6V-10.4V

0V0V59.5V-59.5V0V28.9V-29.3V0V0V0V0V-0.2V29.4V-29.7V0V0V54.1V-51.4V0V0V0V0V

0V

0V5.1V5.1V

0V0V

0.7V0V 0V

2.1V

14.7V

0.7V0V

0.7V0V

29.2V

29.2V14.7V

15.2V

-30.1V

-11V

-10.4V

-11V

-0.6V

14.1V

13.6V

9.6V

10.2V

10.4V

-10.4V

14.7V

7.6V7V

0V

7.6V

0.3V-10.4V

-10.4V

-10.4V

7.6V

7.6V

6.8VFAN ON:1.6V

0V

FAN ON:0V0.5V

FAN ON:0V4.7V

0V

0.5V

8.1V

8.1V

30.1V

30.1V7.6V

7.6V

0V

10.4V

13.6V

10.4V 14.1V

13.6V

A

B

C

D

E

F

G

H

37 38 39 40 41 42 43 44 45 46 47 48

SA-DV280(EB,EG) MAIN, AC IN, POWER TRANSFORMER(A),(B) CIRCUIT DIAGRAM

SCHEMATIC DIAGRAM-4

L601

21

3456789

101112

21

345678

R63910

C62

10.

1

EF

D

CP601

CP602

R64

110

AB

IJ

C

C63

10.

1

G

Lch

JK601

HF(6 )

LF(8 )

Rch

JK602

HF(6 )

LF(8 )

A

B

C

R65

110

C62

70.

1C

629

0.1

C63

50.

047

R64910

L605

R64

210

C62

00.

1C

630

0.1

R64010

L602

C63

70.

047

C63

60.

047

R65

210

C62

60.

1C

628

0.1

R65010

L606

C63

20.

047

SPEAKERS

GNDGNDC OUTC OUTGNDGNDGNDGNDSUR L OUTSUR L OUTSUR R OUTSUR R OUT

ECOSH SYNCSA SYNCD.GNDBU5VRS13V+BNC

W722A

W721A

21

3456789

10

21

34

EFHD

C

GFED

S1S2S3S4AC1CTAC2S7FL2FL1

S1S2S3S4

MAIN CIRCUITB

C

A

D

B

T701CN701

CN702

CN703

CN704

CN705

CN706

CN707

CN708

CN709

CN710

R7931

CN601

C65

210

00P

C64

410

00P

C64

310

00P

C65

10.

047

C64

60.

047

C64

50.

047

R ch

L ch

AC IN

JK701L701F1 T2AT702

Z701

C79

110

00P

3 1

24RL702

R79

447

K

Q7912SD2144STARELAY DRIVE

D74

5M

A40

51M

TA

C7530.01

C75

516

V10

00

Q7262SC3940AQSTAREGULATOR D746

RL1N4003N02

D74

7M

A40

68LT

AC

758

0.01

C75

910

V47

C75

40.

01

D50

0M

A16

5TA

W2/W3

W1

CN602

FP791K5G502AA0002

JK603

CENTER(8 )

SURROUND(8 )R64

610

C62

40.

1C

634

0.1

R64410

L604

R64

510

C62

50.

1C

633

0.1

R64310

L603

D AC IN CIRCUIT

21

3456789

101112

21

345678

R7771K

R77418

D711RL1N4003N02

R77318

R712 2.2K

A

B

C

A

C

B

R7953.9K

D74

3R

L1N

4003

N02

D74

1R

L1N

4003

N02

D74

2R

L1N

4003

N02

D74

4R

L1N

4003

N02

R77

12.

2KD

740

MA

165T

A

POWER TRANSFORMER(B) CIRCUITF

POWER TRANSFORMER(A) CIRCUITE

W722B

W721B10

21

3456789

CN713

CN712

CN711 W1

W3

W2

21

34

R77

222

K

A

B

C

D

FP792K5G502AA0002

SPEAKERS

GNDGND

C OUTC OUT

GNDGNDGNDGND

SUR L INSUR L INSUR R INSUR R IN

ECOSH SYNCSA SYNC

D.GNDBU5V

RS13V+B

NC

S1S2S3S4

AC1CT

AC2S7

FL2FL1

S1S2S3S4

R7982.2

For [EB] area.

For [EG] area.

230-240V 50Hz [EB]230V 50Hz [EG]


0.7V0V

6V

10.7V6V

6.7V

AC22.6V

AC22.6V

AC11.7V

AC11.7V

AC4.7VAC

29.2V

AC9.4V

A

B

C

D

E

F

G

H

1 2 3 4 5 6 7 8 9 10 11 12

SA-DV280(EB,EG) TUNER UNIT CIRCUIT DIAGRAM

SCHEMATIC DIAGRAM-5

C

B

24 23 22 21 20 19 18 17 16 15 14 13

1 2 3 4 5 6 7 8 9 10 11 12

FM

IFIN

AM

MIX

OU

T

RE

G

AM

IFIN

GN

D

SD ST

FM

DE

T

Vcc

ST

RQ

FM

/AM

MO

NO

AM

OS

CO

UT

AM

OS

C

AF

C

AM

RF

IN

AG

C

AM

OU

T

DE

TO

UT

PIL

OT

IN

MP

XIN

PIL

OT

OU

T

Rch

OU

T

Lch

OU

T

B AD F C E

470

2.7K1

68

0.1

1000

P

470

0.01

5~

150

A B

122

100

0.01

8

1 1K

100K

4700

P

B

A

4700

P

100K

1K1

0.01

8

1000

P~

0.01

150P

68

K0.

1

1022

K4.

7

4.7

47K

1000

P

3.3

A

D

B

C

10K

0.0

1

330

1000P

LA1833MNFM/AM IF AMP,DET/AM OSC,MIX/FM MPX

A

B

B

A

D

A

2SC2712SWITCHING

3.3K

2SC2413FM IF AMP

2SC2413FM IF AMP

330

11 13 245678910

1K~

10K

470

4.7K

~22

K

0.02

2

0.1

DTA114POWER SUPPLY(FM:ON)

1K~

10K

100P

~10

00P

0.01

~0.

068

10K

~10

0K

1K~

10K

270

~68

0

270K ~ 680K10P ~39P

270K ~680K

CL

DO DI

Lch

OU

TC

ER

chO

UT

DE

T+

B(2

)S

D+

B(1

)T.

GN

D

To MAIN CIRCUIT(CP101)on SCHEMATIC DIAGRAM-2/19-A

B

1

0.47

1 2 3 4 5 6 7 8 9 10

20 19 18 17 16 15 14 13 12 11

XIN

CE

DI

CL

DO

B01

B02

B03 B04

I01

IFINI02

AM

IN

FM

INVD

D

PD

AIN

AO

UT

Vss

XO

UT

10K

0.04

7

100K

5~

12P

10

00

P

A

B

C

D

0.58 H

390

220

27K

100P0.01 560

1K

4.7 D

ZS

5.1B10

K

27P

~33

P

27P

7.2MHz

22K

~10

0K100

1000

P

1000P

10K

1K3.3K

10K

1K 1K 1K 470

A B C D

22

5.6K

0.01

A

B

C

D

E

F

LC72131MPLL FREQUENCYSYNTHESIZER

AM ANTEXT

LOOP

FM ANT(75 )

100

0.01

100

2SC2413BUFFER AMP

2SK360FM OSC

2SK360RF AMP

22P 15P

22P

0.02

2

2.7K

47P

33K

100K

2P

8P

10K

10K

33K

33K

100K

0.02

2

100

27P

2P

4P

10K

220

0.02

2

0.02

2 150

5P

18P

27P

2SC2059FM MIXER

0.47 H

0.47

H

10P

~33

P

330P ~580P

1P~

5P

680

~2.

2K

0 ~ 220

1H

820K

~2.

2M

0.02

2

680

1000

P

330

1P~

5P

6P~

10P

6 ~ 220

5P

5P~

12P

0~

5P

100K

Z101 TUNER UNIT(RAN0005EM-2) :POSITIVE VOLTAGE LINE:FM SIGNAL LINE:FM OSC SIGNAL LINE

:AM SIGNAL LINE:AM OSC SIGNAL LINE

A

B

C

D

E

F

G

H

1 2 3 4 5 6 7 8 9 10 11 12


SCHEMATIC DIAGRAM-1

S90

4(

PLA

Y/

RE

C)

FL901 (A2BB00000084)

1754632

T

S

S90

8( I

NP

UT

SE

LEC

TO

R)

S90

7( S

ET

)

S90

6( T

UN

ING

MO

DE

)

S90

5( F

MA

UT

O/M

ON

O)


R99

715

0

R996150

D97

3M

A40

30M

TAC

921

1000

P

C92

235

V33

C92

025

V22

R92

210

KR

921

10K

R94

42.

2K

R9124.7K

R9113.3K

R9102.2K

R9091.8K

R9161.5K

R9151.2K

R9141K

R913820

R9073.3K

R9062.2K

R9051.8K

R9041.5K

R9031.2K

R9021K

R901820

FL DISPLAY

1 6 8 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 53 542 5 7 9

W905

S90

1(

/)

C92

825

V22


C91

925

V22

C92

725

V22

C39

60.

047

C92

30.

1

C39

50.

047

D974MA165TA

C90

747

0P

C92

40.

1

C90

40.

01

R9241K

C90

847

0P

R9251K

S91

4( P

S)

S91

5( P

TY

)

S91

0(T

UN

ING

,)

S91

1( T

UN

ING

,)

S91

2(T

UN

ER

/BA

ND

)

S91

3(D

IGIT

AL

S.W

OO

FE

R)

(RDS DISP MODE)

A B C D

E


X

W

V


S90

2( C

LOC

K/T

IME

R)

S90

3(-

DE

MO

)


CBA

Q901UN4212TARESET

R93

610

0

R91915K

R99147K

R91

810

KR

928

47K

L902

1H

D9011SS291TA

L901

10H

R95

133

0K

R95210M

ABCDEFGH

IJKLMNOPQRST

UV

WXYZ

R99

310

0K

D93

1M

A16

5TA

D93

3M

A16

5TA

R99

010

0K

C91

66.

3V10

0

D95

1LN

J301

MP

UJA

D(D

IGIT

AL

S.W

OO

FE

R)

R99

522

0

D95

4S

ELS

5923

C(

PLA

Y/

RE

C)

R98

61.

5K

D30

6S

ELS

5223

C(

)R

939

1.5K

C90

510

00P

C90

16.

3V10

0

R93

510

0R

934

100

R98

81K

R93

710

KR

987

1K

R9262.2K

C91

20.

1

R954100K

C92

610

00P

R96

01.

5KR

958

1K

R99

910

0K

R95

947

R96

92.

7K

D9021SS291TA

C90

30.

01

C90

210

V10

00

X902(32.7kHz)

C91

118

P

C91

020

P

X901(6MHz)

1

3

2

D90

51S

S29

1TA

EF IKL M NO Q

R9401K

R929 1KR930 1KR932 1KR931 1K

R97

610

0K

R9561K

R9571K

C91

50.

01C

925

1000

PR953 100

AB

CD

G

H

J

C91

450

V2.

2D

904

MA

165T

A

ABC

DE


1

11

21

2

12

22

3

13

23

4

14

24

5

15

25

6

16

26

7

17

27

8

18

28

9

19

29

10

20

30

3132333435363738394041424344454647484950

515253545556575859606162636465666768697071727374757677787980

81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100


8GREMOCONRDS DATA

RDS CLKHP SW


KEY KARAOKEKEY TU

VDD1XC OUT

XC INVss

X OUTX IN

RESETAC IN

SEL/ TUNERSEL TUNER

ST/ AV.6CHLC72 CK


CHECK

STA

ND

-BY

TIM

ER

S.W

.LE

DLO

UN

GE

CH

OR

US

MU

TE

NC

PO

WE

RV

ss2

VD

D2

MU

TE

2N

CM

UT

E3

SH

CS

SH

DO

SH

DI

SH

CK

ED

ET

CR

TIM

ER

SD

VD

D3

P12

P11

P10 P9

P8

P7

P6

P5

P4

P3

P2

P1

1G 2G 3G 4G 5G 6G 7G

R99

410

0K

U

R94

94.

7KR

950

100


5.1V

5.1V

2V/2ms.DIV.

5V

0V

5V

0VT 10ms.

2V/2ms.DIV.0V

5V

-30.1V


5.1V-29.5V-29.5V-26.5V-17.2V-5.3V

-10.3V0.4V

0V

-23.

4V-2

0.5V

-26.

3V-2

6.3V

5.1V

-23.

4V-2

0.5V

-26.

2V-2

9.2V

-26.

2V-2

6.2V

-26.

1V-2

6.3V

-23.

5V-2

3.5V

-25.

6V-2

7.5V

-27.

5V-2

5.5V

-23.

5V

-25.6V5.1V2.6V2.6V0.6V5.1V0V0V

1.4V5.1V5.1V5.1V2.3V2.3V

2.7V1.6V5V2.2V0V

5.1V5.1V4.6V0V0V2.5V

0V

5V

0V

5.1V

3.3V

1.9V

1.9V

1.4V0V

5.1V

5.1V

4.8V0V0V0V0V0V0V

FM / AM

-30V

4V

T 5.5ms.

0V

0V4V

T 5.5ms.-30V

FM / AM

3.3VP-P

F=6MHz

FM / AM

4.2VP-P

F=6MHz

FM / AM

5.2VP-P

F=32.7kHz

FM / AM

5.2VP-P

F=32.7kHz

FM / AM

2VP-P

F=32.7kHz

FM / AM

A

B

C

D

E

F

G

H

1 2 3 4 5 6 7 8 9 10 11 12


SCHEMATIC DIAGRAM-1

S90

4(

PLA

Y/

RE

C)

FL901 (A2BB00000084)

1754632

T

S

S90

8( I

NP

UT

SE

LEC

TO

R)

S90

7( S

ET

)

S90

6( T

UN

ING

MO

DE

)

S90

5( F

MA

UT

O/M

ON

O)


R99

715

0

R996150

D97

3M

A40

30M

TAC

921

1000

P

C92

235

V33

C92

025

V22

R92

210

KR

921

10K

R94

42.

2K

R9124.7K

R9113.3K

R9102.2K

R9091.8K

R9161.5K

R9151.2K

R9141K

R913820

R9073.3K

R9062.2K

R9051.8K

R9041.5K

R9031.2K

R9021K

R901820

FL DISPLAY

1 6 8 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 53 542 5 7 9

W905

S90

1(

/)

C92

825

V22


C91

925

V22

C92

725

V22

C39

60.

047

C92

30.

1

C39

50.

047

D974MA165TA

C90

747

0P

C92

40.

1

C90

40.

01

R9241K

C90

847

0P

R9251K

S91

4( P

S)

S91

5( P

TY

)

S91

0(T

UN

ING

,)

S91

1( T

UN

ING

,)

S91

2(T

UN

ER

/BA

ND

)

S91

3(D

IGIT

AL

S.W

OO

FE

R)

(RDS DISP MODE)

A B C D

E


X

W

V


S90

2( C

LOC

K/T

IME

R)

S90

3(-

DE

MO

)


CBA

Q901UN4212TARESET

R93

610

0

R91915K

R99147K

R91

810

KR

928

47K

L902

1H

D9011SS291TA

L901

10H

R95

133

0KR95210M

ABCDEFGH

IJKLMNOPQRST

UV

WXYZ

R99

310

0K

D93

1M

A16

5TA

D93

3M

A16

5TA

R99

010

0K

C91

66.

3V10

0

D95

1LN

J301

MP

UJA

D(D

IGIT

AL

S.W

OO

FE

R)

R99

522

0

D95

4S

ELS

5923

C(

PLA

Y/

RE

C)

R98

61.

5K

D30

6S

ELS

5223

C(

)R

939

1.5K

C90

510

00P

C90

16.

3V10

0

R93

510

0R

934

100

R98

81K

R93

710

KR

987

1K

R9262.2K

C91

20.

1

R954100K

C92

610

00P

R96

01.

5KR

958

1K

R99

910

0K

R95

947

R96

92.

7K

D9021SS291TA

C90

30.

01

C90

210

V10

00

X902(32.7kHz)

C91

118

P

C91

020

P

X901(6MHz)

1

3

2

D90

51S

S29

1TA

EF IKL M NO Q

R9401K

R929 1KR930 1KR932 1KR931 1K

R97

610

0K

R9561K

R9571K

C91

50.

01C

925

1000

PR953 100

AB

CD

G

H

J

C91

450

V2.

2D

904

MA

165T

A

ABC

DE


1

11

21

2

12

22

3

13

23

4

14

24

5

15

25

6

16

26

7

17

27

8

18

28

9

19

29

10

20

30

3132333435363738394041424344454647484950

515253545556575859606162636465666768697071727374757677787980

81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100


8GREMOCONRDS DATA

RDS CLKHP SW


KEY KARAOKEKEY TU

VDD1XC OUT

XC INVss

X OUTX IN

RESETAC IN

SEL/ TUNERSEL TUNER

ST/ AV.6CHLC72 CK


CHECK

STA

ND

-BY

TIM

ER

S.W

.LE

DLO

UN

GE

CH

OR

US

MU

TE

NC

PO

WE

RV

ss2

VD

D2

MU

TE

2N

CM

UT

E3

SH

CS

SH

DO

SH

DI

SH

CK

ED

ET

CR

TIM

ER

SD

VD

D3

P12

P11

P10 P9

P8

P7

P6

P5

P4

P3

P2

P1

1G 2G 3G 4G 5G 6G 7G

R99

410

0K

U

R94

94.

7KR

950

100


5.1V

5.1V

2V/2ms.DIV.

5V

0V

5V

0VT 10ms.

2V/2ms.DIV.0V

5V

-30.1V


5.1V-29.5V-29.5V-26.5V-17.2V-5.3V

-10.3V0.4V

0V

-23.

4V-2

0.5V

-26.

3V-2

6.3V

5.1V

-23.

4V-2

0.5V

-26.

2V-2

9.2V

-26.

2V-2

6.2V

-26.

1V-2

6.3V

-23.

5V-2

3.5V

-25.

6V-2

7.5V

-27.

5V-2

5.5V

-23.

5V

-25.6V5.1V2.6V2.6V0.6V5.1V0V0V

1.4V5.1V5.1V5.1V2.3V2.3V

2.7V1.6V5V2.2V0V

5.1V5.1V4.6V0V0V2.5V

0V

5V

0V

5.1V

3.3V

1.9V

1.9V

1.4V0V

5.1V

5.1V

4.8V0V0V0V0V0V0V

FM / AM

-30V

4V

T 5.5ms.

0V

0V4V

T 5.5ms.-30V

FM / AM

3.3VP-P

F=6MHz

FM / AM

4.2VP-P

F=6MHz

FM / AM

5.2VP-P

F=32.7kHz

FM / AM

5.2VP-P

F=32.7kHz

FM / AM

2VP-P

F=32.7kHz

FM / AM

13 14 15 16 17 18 19 20 21 22 23 24

SA-DV280(EB,EG) OPERATION, MAIN CIRCUIT DIAGRAM

SCHEMATIC DIAGRAM-2

W901B

W902B

IC151C1BB00000527RDS SIGNALDEMODULATOR

1 2 3

X151

R1581K

R15

410

0K

R15

310

0K

123456789

101112131415

B ACOM

123456789

101112131415


A B C

1

2

3

4

5

6

7

8 9

10

11

12

13

14

15

16VREF

HPX IN

VDDA

VssA

FL OUT

C IN

TEST

X OUT

IDR

RDCL

RDDA

RST

MODE

VDDB

VssB

X IN

R96

222

K

VR901EVQVBXFK124B

(VOLUME)

R94

510

0

R96

122

KR

943

100

C91

70.

01

C15

510

00P

C15

310

00P

C16

010

00P

C15

96.

3V47

R15

21KR15

11K

C15

456

0PC

158

6.3V

47

C15116V10

D907MA165TA

M

BC

R9461K

C90

910

00P

C91

86.

3V10

0

D E A

R9411K

L153

1H

R15

512

0D

151

MA

4051

MTA

L151100 H

L152

100

H

C15

647

P

C15

747

P

ABCDEFGHI

JKL

NO

Q

S

T

A OPERATION CIRCUIT

R94

22.

2K

R9741K

C93

116

V10

R9653.9K

R9663.9K

D96

1M

A40

75M

TAR

975

22K

D906MA165TA

U

N

1

2

3

Z901B3RAD0000028(REMOTE SENSOR)

R15

71K

C152330P

W902A

W901A

CP101

C

F

G

B

AED

DETRch IN

CELch IN

DIDOCL

+B(2)SD

+B(1)T.GND

Q7072SB1417PQTAREGULATOR

Q7232SC3940AQSTAREGULATOR

R7634.7K

R230 1K

R229 1K

D72

1M

A43

00M

TAR

708

4.7K

C70

70.

047

C70

635

V10

C73

750

V10

0

ToSOUNDPROCESSOR(SH-DV280)

To TUNER UINTon SCHEMATICDIAGRAM-5/11,12-A

C73

50.

047

BA

R56

32.

7K

R56

42.

7K

C66016V10

C65916V10

R61

54.

7K

R61

44.

7K

R6313.9K

R6323.9K

C2020.1

R20

310

0K

R20

410

0K

C20

10.

1

C60216V10

C70

80.

047

R211270

D20

1M

A40

56M

TA

R6871.5K

R6881.5K

Q605,6062SD2144STAMUTING Q605

Q606

R68

31K

R61

74.

7K

21

3456789

1011

CBAX0X1VDD

GVssINHZ0Z1Y1 Y0

16 15 14 13 12 11 10 9

1 2 3 4 5 6 7 8

IC201BU4053BCFE2SIGNAL SELECTOR

C65516V10

C65616V10

R60

64.

7K

R60

54.

7K

2

15

3456789

1011121314

1

2

15

3456789

1011121314

1

20

21

3456789

10111213141516171819

K

LM

I

J

EF

CDEFG

EFG

ABCD

AB

G

H

C60

116

V10

R5982.2K

R5972.2K

R20

510

0K

HG

R20

210

0K

B

C

D

E

F

C50

90.

01C

510

0.01

R6931K

R6921K

C66

416

V10

C72

516

V47

A

C

R69

647

K

Q609,6102SD2144STAMUTING

Q609

Q610


B

CR69422K

R51147

R50947

R512 47 R510 47

W501

D719RL1N4003N02

D720RL1N4003N02

D717RL1N4003N02

D718RL1N4003N02

H

D

C

R695470

D61

1M

A40

51M

TA

C74

016

V10

C73

30.

047

D73

7M

A40

82LT

A

R764330

MAIN CIRCUITB

C7311000P

C74

10.

1

TUNER Lch/CTUNER Rch

A.GNDLch INRch IN

+B(10V)SUR LSUR R

S.WMIC

-B(-10V)V.GNDD.GND

CS/ REQCLK

DATACT GND

SH FL1SH FL2

SYNC

R6033.3K

A

B

B

R68

41K

A

C71

525

V68

00

C71

410

00P

D705RL1N4003N02

A

: POSITIVE VOLTAGE LINE

: NEGATIVE VOLTAGE LINE

-30.

1V

5.1V

:AUDIO SIGNAL LINE

6V

7.6V

3.3V

0V

3.3V

2.6V

2.6V

0V

5.1V

2.5V2.7V

2.5V

2.5V

5.1V

2.5V

2.5V

14.7V

10.4V

-37.3V-30.1V

-30.7V

14.7V7.2V

7.8V

-10V

-10V

0V

0V

-10.2V

5.1V

4.9V0V

-10V

0V0.7V

5.7V 0V 0V 0V 0V 0V

6V

7.2V

7.6V-10.4V

0V 0V -10.4V

: FM SIGNAL LINE: AM SIGNAL LINE

25 26 27 28 29 30 31 32 33 34 35 36


SCHEMATIC DIAGRAM-3

M


Q601 Q602

D75

6M

A70

0ATA

C60

347

0P

C60

447

0P

C60

747

0P

C60

847

0P

C64

910

00P

C65

010

00P

C60

510

00P

C60

610

00P

C6481000P

C61

70.

01

R63

715

K

R63

868

K

R619 120K

R622 120K

R621 150K

R624 150K

R620120K

R612 56K

R611 56K

R610 150K

R609 56K

R608 56K

R607 56K

C610 56P

C609 56P

C612 15P

C611 39P

C614 47P

C613 47P

R62

747

0K

C61

650

V0.

47

N

D60

1S

B36

0L65

08

D60

2S

B36

0L65

08

D75

4R

L1N

4003

N02

C76

10.

1

D70

11N

5402

BM

21C

709

0.1


757

MA

700A

TA

123456789101112131415181920212223242526 1617

R6043.3K

R6013.3K

R6023.3K

R61

84.

7K


D6071SS291TA

L

K

D65

8M

A16

5TA

D65

7M

A16

5TA

B

A

R6851K

R6861K


Q607

Q608

C70

50.

01

G

R77

610

K


R7383.9K

R73

947

K

C62

210

V10

0

D65

9M

A16

5TA

D75

11N

5402

BM

21

D7031N5402BM21

D75

3R

L1N

4003

N02

D76

1R

L1N

4003

N02

D75

5R

L1N

4003

N02

D75

21N

5402

BM

21

D70

21N

5402

BM

21

D7041N5402BM21

G

F

E

D

A B C

D558MA165TA

R54410K

R57

215

K

R648120

C61

80.

01

R6352.2K

C61

90.

1


C70

435

V47

00C

702

35V

4700

C70

335

V47

00C

701

35V

4700

R76

122

0

R62

822

K

R69168

R647270

R623120K

CN781

F

C

A

B

D

E







R55

610

0K

R55

710

KC

721

10V

100

D72

5M

A40

82LT

A

R729220C

723

0.04

7

C6391000P

C6401000P

C6411000P

C6421000P

C7320.022

C6471000P

D73

8M

A16

5TA

D73

0M

A40

91H

TA

R768100

R72

43.

9KC

718

25V

100

D72

3M

A41

50H

TA

R72

35.

6K

C71

90.

047

R72510

C72

40.

047

C71

00.

047

R54

618

K

R55

118

K

R55

247

K R55

522

K

C55

00.

01

D552MA165TA

D555MA4100MTA

R54

718

KE602

E601

R74

91K

D73

9M

A16

5TA


W701B

1 1032 4 5 6 7 8 9

R72

03.

9K

C73

450

V3.

3

D75

8M

A16

5TA

C72

225

V10

0 C72

00.

047

C71

716

V33

MAIN CIRCUITB

G

R76

522

0

NR

569

10K D

554

MA

165T

A

C37

16.

3V10

0


R568100

D55

3M

A70

0ATA

C55616V10 C

555

16V

10



R5702.2M

R56

010

0K

C5590.01

D58

1R

L1N

4003

N02

R56

722

FAN MOTOR

JK551

R56668K


M

R71

93.

3K


R7962.2

Q703

Q704

R76927

R72

73.

9K

C55

416

V22

0

R561100K

C5520.01

R5594.7K

R5914.7K

C55

150

V2.

2

D55

1M

A16

5TA

1 2

D58

3R

L1N

4003

N02

N

R72

14.

7

R7222.2

AB

R75

30.

47

R7540.47


Q711

R7972.2

R76727

R5582.2K

D58

2R

L1N

4003

N02

Q712


7.6V-10.4V


0V

0V5.1V5.1V

0V0V

0.7V0V 0V

2.1V

14.7V

0.7V0V

0.7V0V

29.2V

29.2V14.7V

15.2V

-30.1V

-11V

-10.4V

-11V

-0.6V

14.1V

13.6V

9.6V

10.2V

10.4V

-10.4V

14.7V

7.6V7V

0V

7.6V

0.3V-10.4V

-10.4V

-10.4V

7.6V

7.6V

6.8VFAN ON:1.6V

0V

FAN ON:0V0.5V

FAN ON:0V4.7V

0V

0.5V

8.1V

8.1V

30.1V

30.1V7.6V

7.6V

0V

10.4V

13.6V

10.4V 14.1V

13.6V

25 26 27 28 29 30 31 32 33 34 35 36


SCHEMATIC DIAGRAM-3

M


Q601 Q602

D75

6M

A70

0ATA

C60

347

0P

C60

447

0P

C60

747

0P

C60

847

0P

C64

910

00P

C65

010

00P

C60

510

00P

C60

610

00P

C6481000P

C61

70.

01

R63

715

K

R63

868

K

R619 120K

R622 120K

R621 150K

R624 150K

R620120K

R612 56K

R611 56K

R610 150K

R609 56K

R608 56K

R607 56K

C610 56P

C609 56P

C612 15P

C611 39P

C614 47P

C613 47P

R62

747

0K

C61

650

V0.

47

N

D60

1S

B36

0L65

08

D60

2S

B36

0L65

08

D75

4R

L1N

4003

N02

C76

10.

1

D70

11N

5402

BM

21C

709

0.1


757

MA

700A

TA

123456789101112131415181920212223242526 1617

R6043.3K

R6013.3K

R6023.3K

R61

84.

7K


D6071SS291TA

L

K

D65

8M

A16

5TA

D65

7M

A16

5TA

B

A

R6851K

R6861K


Q607

Q608

C70

50.

01

G

R77

610

K


R7383.9K

R73

947

K

C62

210

V10

0

D65

9M

A16

5TA

D75

11N

5402

BM

21

D7031N5402BM21

D75

3R

L1N

4003

N02

D76

1R

L1N

4003

N02

D75

5R

L1N

4003

N02

D75

21N

5402

BM

21

D70

21N

5402

BM

21

D7041N5402BM21

G

F

E

D

A B C

D558MA165TA

R54410K

R57

215

K

R648120

C61

80.

01

R6352.2K

C61

90.

1


C70

435

V47

00C

702

35V

4700

C70

335

V47

00C

701

35V

4700

R76

122

0

R62

822

K

R69168

R647270

R623120K

CN781

F

C

A

B

D

E







R55

610

0K

R55

710

KC

721

10V

100

D72

5M

A40

82LT

A

R729220C

723

0.04

7

C6391000P

C6401000P

C6411000P

C6421000P

C7320.022

C6471000P

D73

8M

A16

5TA

D73

0M

A40

91H

TA

R768100

R72

43.

9KC

718

25V

100

D72

3M

A41

50H

TA

R72

35.

6K

C71

90.

047

R72510

C72

40.

047

C71

00.

047

R54

618

K

R55

118

K

R55

247

K R55

522

K

C55

00.

01

D552MA165TA

D555MA4100MTA

R54

718

K

E602

E601

R74

91K

D73

9M

A16

5TA


W701B

1 1032 4 5 6 7 8 9

R72

03.

9K

C73

450

V3.

3

D75

8M

A16

5TA

C72

225

V10

0 C72

00.

047

C71

716

V33

MAIN CIRCUITB

G

R76

522

0

N

R56

910

K D55

4M

A16

5TA

C37

16.

3V10

0


R568100

D55

3M

A70

0ATA

C55616V10 C

555

16V

10



R5702.2M

R56

010

0K

C5590.01

D58

1R

L1N

4003

N02

R56

722

FAN MOTOR

JK551

R56668K


M

R71

93.

3K


R7962.2

Q703

Q704

R76927

R72

73.

9K

C55

416

V22

0

R561100K

C5520.01

R5594.7K

R5914.7K

C55

150

V2.

2

D55

1M

A16

5TA

1 2

D58

3R

L1N

4003

N02

N

R72

14.

7

R7222.2

AB

R75

30.

47

R7540.47


Q711

R7972.2

R76727

R5582.2K

D58

2R

L1N

4003

N02

Q712


7.6V-10.4V


0V

0V5.1V5.1V

0V0V

0.7V0V 0V

2.1V

14.7V

0.7V0V

0.7V0V

29.2V

29.2V14.7V

15.2V

-30.1V

-11V

-10.4V

-11V

-0.6V

14.1V

13.6V

9.6V

10.2V

10.4V

-10.4V

14.7V

7.6V7V

0V

7.6V

0.3V-10.4V

-10.4V

-10.4V

7.6V

7.6V

6.8VFAN ON:1.6V

0V

FAN ON:0V0.5V

FAN ON:0V4.7V

0V

0.5V

8.1V

8.1V

30.1V

30.1V7.6V

7.6V

0V

10.4V

13.6V

10.4V 14.1V

13.6V

A

B

C

D

E

F

G

H

37 38 39 40 41 42 43 44 45 46 47 48

SA-DV280(EB,EG) MAIN, AC IN, POWER TRANSFORMER(A),(B) CIRCUIT DIAGRAM

SCHEMATIC DIAGRAM-4

L601

21

3456789

101112

21

345678

R63910

C62

10.

1

EF

D

CP601

CP602

R64

110

AB

IJ

C

C63

10.

1

G

Lch

JK601

HF(6 )

LF(8 )

Rch

JK602

HF(6 )

LF(8 )

A

B

C

R65

110

C62

70.

1C

629

0.1

C63

50.

047

R64910

L605

R64

210

C62

00.

1C

630

0.1

R64010

L602

C63

70.

047

C63

60.

047

R65

210

C62

60.

1C

628

0.1

R65010

L606

C63

20.

047

SPEAKERS

GNDGNDC OUTC OUTGNDGNDGNDGNDSUR L OUTSUR L OUTSUR R OUTSUR R OUT

ECOSH SYNCSA SYNCD.GNDBU5VRS13V+BNC

W722A

W721A

21

3456789

10

21

34

EFHD

C

GFED

S1S2S3S4AC1CTAC2S7FL2FL1

S1S2S3S4

MAIN CIRCUITB

C

A

D

B

T701CN701

CN702

CN703

CN704

CN705

CN706

CN707

CN708

CN709

CN710

R7931

CN601

C65

210

00P

C64

410

00P

C64

310

00P

C65

10.

047

C64

60.

047

C64

50.

047

R ch

L ch

AC IN

JK701L701F1 T2AT702

Z701

C79

110

00P

3 1

24RL702

R79

447

K

Q7912SD2144STARELAY DRIVE

D74

5M

A40

51M

TA

C7530.01

C75

516

V10

00

Q7262SC3940AQSTAREGULATOR D746

RL1N4003N02

D74

7M

A40

68LT

AC

758

0.01

C75

910

V47

C75

40.

01

D50

0M

A16

5TA

W2/W3

W1

CN602

FP791K5G502AA0002

JK603

CENTER(8 )

SURROUND(8 )R64

610

C62

40.

1C

634

0.1

R64410

L604

R64

510

C62

50.

1C

633

0.1

R64310

L603

D AC IN CIRCUIT

21

3456789

101112

21

345678

R7771K

R77418

D711RL1N4003N02

R77318

R712 2.2K

A

B

C

A

C

B

R7953.9K

D74

3R

L1N

4003

N02

D74

1R

L1N

4003

N02

D74

2R

L1N

4003

N02

D74

4R

L1N

4003

N02

R77

12.

2KD

740

MA

165T

A

POWER TRANSFORMER(B) CIRCUITF

POWER TRANSFORMER(A) CIRCUITE

W722B

W721B10

21

3456789

CN713

CN712

CN711 W1

W3

W2

21

34

R77

222

K

A

B

C

D

FP792K5G502AA0002

SPEAKERS

GNDGND

C OUTC OUT

GNDGNDGNDGND

SUR L INSUR L INSUR R INSUR R IN

ECOSH SYNCSA SYNC

D.GNDBU5V

RS13V+B

NC

S1S2S3S4

AC1CT

AC2S7

FL2FL1

S1S2S3S4

R7982.2

For [EB] area.

For [EG] area.

230-240V 50Hz [EB]230V 50Hz [EG]


0.7V0V

6V

10.7V6V

6.7V

AC22.6V

AC22.6V

AC11.7V

AC11.7V

AC4.7VAC

29.2V

AC9.4V

A

B

C

D

E

F

G

H

1 2 3 4 5 6 7 8 9 10 11 12

SA-DV280(EB,EG) TUNER UNIT CIRCUIT DIAGRAM

SCHEMATIC DIAGRAM-5

C

B

24 23 22 21 20 19 18 17 16 15 14 13

1 2 3 4 5 6 7 8 9 10 11 12

FM

IFIN

AM

MIX

OU

T

RE

G

AM

IFIN

GN

D

SD ST

FM

DE

T

Vcc

ST

RQ

FM

/AM

MO

NO

AM

OS

CO

UT

AM

OS

C

AF

C

AM

RF

IN

AG

C

AM

OU

T

DE

TO

UT

PIL

OT

IN

MP

XIN

PIL

OT

OU

T

Rch

OU

T

Lch

OU

T

B AD F C E

470

2.7K1

68

0.1

1000

P

470

0.01

5~

150

A B

122

100

0.01

8

1 1K

100K

4700

P

B

A

4700

P

100K

1K1

0.01

8

1000

P~

0.01

150P

68

K0.

1

1022

K4.

7

4.7

47K

1000

P

3.3

A

D

B

C

10K

0.0

1

330

1000P

LA1833MNFM/AM IF AMP,DET/AM OSC,MIX/FM MPX

A

B

B

A

D

A

2SC2712SWITCHING

3.3K

2SC2413FM IF AMP

2SC2413FM IF AMP

330

11 13 245678910

1K~

10K

470

4.7K

~22

K

0.02

2

0.1

DTA114POWER SUPPLY(FM:ON)

1K~

10K

100P

~10

00P

0.01

~0.

068

10K

~10

0K

1K~

10K

270

~68

0

270K ~ 680K10P ~39P

270K ~680K

CL

DO DI

Lch

OU

TC

ER

chO

UT

DE

T+

B(2

)S

D+

B(1

)T.

GN

D

To MAIN CIRCUIT(CP101)on SCHEMATIC DIAGRAM-2/19-A

B

1

0.47

1 2 3 4 5 6 7 8 9 10

20 19 18 17 16 15 14 13 12 11

XIN

CE

DI

CL

DO

B01

B02

B03 B04

I01

IFINI02

AM

IN

FM

INVD

D

PD

AIN

AO

UT

Vss

XO

UT

10K

0.04

7

100K

5~

12P

10

00

P

A

B

C

D

0.58 H

390

220

27K

100P0.01 560

1K

4.7 D

ZS

5.1B10

K

27P

~33

P

27P

7.2MHz

22K

~10

0K100

1000

P

1000P

10K

1K3.3K

10K

1K 1K 1K 470

A B C D

22

5.6K

0.01

A

B

C

D

E

F

LC72131MPLL FREQUENCYSYNTHESIZER

AM ANTEXT

LOOP

FM ANT(75 )

100

0.01

100

2SC2413BUFFER AMP

2SK360FM OSC

2SK360RF AMP

22P 15P

22P

0.02

2

2.7K

47P

33K

100K

2P

8P

10K

10K

33K

33K

100K

0.02

2

100

27P

2P

4P

10K

220

0.02

2

0.02

2 150

5P

18P

27P

2SC2059FM MIXER

0.47 H

0.47

H

10P

~33

P

330P ~580P

1P~

5P

680

~2.

2K

0 ~ 220

1H

820K

~2.

2M

0.02

2

680

1000

P

330

1P~

5P

6P~

10P

6 ~ 220

5P

5P~

12P

0~

5P

100K

Z101 TUNER UNIT(RAN0005EM-2) :POSITIVE VOLTAGE LINE:FM SIGNAL LINE:FM OSC SIGNAL LINE

:AM SIGNAL LINE:AM OSC SIGNAL LINE

BU4053BCFE2C1BB00000527

C2BBFD000317 RSN311W64B UN411FTAUN4211TAUN4212TA

2SB1417PQTA2SD2137PQTA

2SD2144STA

2SA1995RSTA2SC5398RSTA

2SC3940AQSTA 2SB1548PQAU2SD2374PQAU

1SS291TAMA700ATA

MA4100MTAMA4150HTAMA4300MTA

MA165TA

SB360L6508 1N5402BM21RL1N4003N02

MA4030MTAMA4051MTAMA4056MTAMA4068LTAMA4075MTAMA4082LTAMA4091HTA

LNJ301MPUJAD SELS5223CSELS5923C

1

8

9

16.....

......

5051

1

..........

.. 30

31

100

......

.

......

.

80

811

..........

........

26E C

B

CB

E

ECB

ECBE

CB

CB

E A

Ca

A

Ca

A

Ca

Anode

Cathode

A

Ca

Anode

Cathode

A

Ca

A

Ca

A

Ca

Anode

Cathode

Anode

Cathode

Anode

CathodeA

Ca

Anode

Cathode

Anode

Cathode

B MAIN P.C.B.

A OPERATION P.C.B.

W902B

14.....2

15......1

W901B

14.....2

15......1

W902A 1 . . . . . . 152 . . . . . 14

1. . . . . . . .10

CN781

2 . . . . . 141 . . . . . . 15

W901A

2 . . . . . . . . 201 . . . . . . . . 19W501

To SOUND PROCESSOR

1 . . 4W722A

1. . . . . . . .10W721A

12..........1

CP601

8......1

CP602

SPEAKERS

C POWER SUPPLY P.C.B.

W701B1. . . . . . . .10

T702(Power

transformer)

D AC IN P.C.B.

W1

W2/W3

1......8

CN602

1..........

12

CN601

AC INCENTER/SURROUNDSPEAKERS

EPOWERTRANSFORMER(A) P.C.B.

1 . . 4W722B

1. . . . . . . .10


W721B

W3W2

W1

For [EG]area.

For [EB]area.F

POWERTRANSFORMER(B) P.C.B.

1.........

11

CP101

Z101TUNERUNIT

BR

OW

N

BLU

E

JK551

21

FAN MOTOR

21

technics sa-dv280eg sch

Documents

fm signal

fm osc signal

audio signal

signal line

fm inam inpowersupplyfm

block diagramnotes

12x0x114a b c11

78fl901 fl displayd931