Technics SADA-8 Schematic

VCR

TAPE

PHONO

CD

TV IN

RO LCH

REC

(OUT)

PLAY

(IN)

FROM IC901

TUNER

MODULE

PB

S301

IC451

AN6558F

PHONO EQ AMP

RCH

REC_L

IC401

TC9163AN

INPUT SIGNAL SELECTOR

(10)

(11)

(3) 26

(2) 27

(4) 25

(5) 24

(6) 23

(7) 22

(8) 21

(9) 20

19

18

X2

X1

X3

X4

X5

X6

X7

X8

Level shift

Latch circuit

Shift register

VDD

Vss

GND

28

14

13

15

1

(12)

16

17

IC503

NJM4580EDTE1

TONE

AMP

+B

-B

LCH

VR501

VR502

IC402

NJM4580EDTE1

BUFFER

AMP

DVD_LCH

DVD LCH

VIDEO

TV IN

DVD IN

VCR1 IN

VCR3 IN

VCR2

S301

-B

Q352

REGULATOR

NJM2296D

VIDEO SIGNAL SELECTOR

6 7 GND2 GND1

8

-V

7

9

10

13

5

IC351

2

CK SEL

Q351

REGULATOR

ST SEL

+B

VCR1 OUT

MONITOR

OUT

DT SEL

+V

11

15

6

14

1

D352D351

VIDEO A

VIDEO C

VIDEO B

(OPTICAL)

DIGITAL

(OPTICAL)

IC1006

SNAHC1U04DBV

INVERTER

TV

DVD

CD

BUFFER

AMP

IC1206(1207)

NJM2115D

X1001

(12.288MHz)

SN74HCU04APW LOGIC CONTROL

IC1005

10(13) 11(12)

Q1001

42

43

44

28

POWER

SUPPLY

RX1

RX2

RX3

AIN1L(AIN1R) AIN2L(AIN2R)

XTI

+B

23

(24)

3 4

CCLK

POWER

A OUT

20

18

39 41 7

A GND2

A GND1

D GND2

PDN

31

D GND1

CS4226-KQG DIR/DAC/VOL

MCLK OUT

LRCK

38

37

A OUT3(4)

CD OUT

CS

CD IN

CCLK

5 6 8 9

CS42

CD IN

CD OUT

MCLK

27

SPI

IC1002

SCLK

36

+B

19 40

DEM

D OUT1

30

+VA

OVL/ERR

CS49

CS RESET

AUDIO

14

+VD

AIN1L

15

17

AINAUX

16

FILT

CM OUT

A OUT1(2)

A OUT5 A OUT6

D IN233D IN1

32

34

D IN3

(22)

25 26

L_DSP

IC1201

21

NJM4580EDTE1

BUFFER

AMP

IC1204

NJM4580EDTE1

BUFFER

AMP

SCLK

LRCK

IC1001

CS49326-CLR

AC3/DTS DECODER DSP

CMP DAT27

COMPRESSED

CMP CLK28

CMP REQ29

25 SCLK N1

26 LRCLK N1

22 SDATA N1

30

CLK IN

CLK SEL

31

DATA INPUT

INTERFACE

SPDIF

RECEIVER

DIGITAL

AUDIO INPUT

INTERFACE

CLOCK MANAGER

FILTD

32

+B

33

PLL

FILTS

35

VSSA

LOGIC CONTROL

4

36

EMWR

FRAMER SHIFTER

INPUT

BUFFER

CONTROLLER

RAM

INPUT

BUFFER

VDDA

34

+B

IC1003

SN74LV244APW

6

7CS18

SCDIN

SCCLK

RESET

PARALLEL OR SERIAL HOST INTERFACE

24-bit

DSP PROCESSING

RAM

PROGRAM

MEMORY

ROM

PROGRAM

MEMORY

STC

RAM

DATA

MEMORY

RAM

DATA

MEMORY

12

8~11, 14~17

VDD2

+B

DATA0~7

RAM OUTPUT BUFFER

VDD1

23

1

+B

SN74AHCT244PW LOGIC CONTROL

5

19

EMOE

OUTPUT

VDD3

+B

IC1004

2120

INTREQ

EXTMEN

SCD OUT

MCLK 44 SCLK

LRCLK

AU DATA0

AU DATA1

FORMATTER

AU DATA2

XMT958

Vss2

Vss1 Vss3

INTREQ SCD OUT AUDATA0 AUDATA1 AUDATA2

XMT958

MCLK

43

SCLK

42

LRCK

41

AUDATA0

40

AUDATA1

39

AUDATA2

3

XMT958

13

2

24

C_IN

DSP_SW

DVD_LCH

D_C

21(8)

REC_L

X5

10(19)

DSP_SW

L_DSP

A OUT

DVD C

DVD SW

SW CONT.

STB

13

X6-1

4

X4

X3

X2-2 X1-1

X2-1 X1-2

CLK

15

16

Vss

GND

DATA

22(7)

1

26 2

3

27

14

-B

NJM4580EDTE1

IC1205

BUFFER

AMP

IC1202

NJM4580EDTE1

MIXER

IC1203

NJM4580EDTE1

BUFFER

AMP

TV

IC406

NJM4580EDTE1

BUFFER

AMP

20(9)

23(6)

24(5)

25

IC403

TC9162AN

SIGNAL SELECTOR

CCLK

C CLK

CD OUT

6470 71

CD OUT

9

CD IN

INT2

CS42

57

INT

PDN

POWER

OVL/ERR

217765 79

POWER

15 14

CS RESET

80

69

OVL/ERR

CS RESET

X OUT

CF1901

CS49

SCD OUT

72

CS49

X IN

INTREQ

22

INT REQ

SCD OUT

23

75

HOLD

VR501

(VR_PS)

+B

STB S

M38B57M6154F

SYSTEM CONTROL

RESET

10

Q1901

RESET

IC1901

Q1902,D1901

RESET

ST SEL

CK SEL

25 26 27

STB S

CLK S

+B

74

DT SEL

VREF

+B

DAT S

ST VR

DT VR

CK VR

5 6

AVSS

CLOCK

13

66 67

DATA

GND

28

4

STATUS

VDD

16

CM CK

68

S CLK

-VP

CM DO

S OUT

7873

CM DI

S IN

REQM

MUTE_S

29

MUTEA

REQS

76

+B

CM RQM

CM RQS

C_IN

D/A

(21)

DPASS

Q501

RELAY DRIVE

RCH

IC1208

2

LOUT

IC1211

TC9459F

SOUND CONTROLLER

(VOLUME)

4

L ch IN

(Rch IN)

4

SL_IN

DT1

13

IC1213

TC9459F

SOUND CONTROLLER

(VOLUME)

STB1

CLK1

12

14

ST_VR

CK_VR

DT_VR

2

SL_OUT

NJM4580EDTE1

LCH

MAIN_LIN

MAIN_LS

BUFFER

AMP

NJM4580EDTE1

NJM4580DD

Q507,Q508

(Q509,Q510)

MUTING

Q511,Q513

(Q512,Q514)

REGULATOR

IC1210

BUFFER

AMP

IC506

TONE

AMP

RL501

RL502

(VGCA)

RL503

(BI-AMP)

IC507

NJM4580DD

TONE

AMP

(D/A)

RL504

D/A (LS)

Q502

RELAY

DRIVE

NJM4580DD

TONE

Q503

RELAY

DRIVE

NJM4580EDTE1

IC505

AMP

IC502

TONE

AMP

VR502

(BALANCE)

NJM4580EDTE1

BUFFER

IC405

AMP

VR501

(SL)

DVD SL

DT3

CS2

16

13

9

4

CS1

C_IN

SOUND CONTROLLER

21

SW_IN

13

12

IC1212

TC9459F

(VOLUME)

DT2

12

CLK3

CLK2

STB3

14

LOUT

STB2

14

23(2)

ST_VR

CK_VR

DT_VR

ST_VR

CK_VR

DT_VR

D/A

MUTE_S

IC1209

NJM4580EDTE1

BUFFER

AMP

SUBWOOFER

OUT

IC508

NJM4580DD

TONE

AMP

Q1201

MUTING

RL505

(C)

IC504

NJM4580EDTE1

TONE

AMP

Q515

(Q516)

RELAY DRIVE

M

D_C

VGCA

MMD_CTRL

DVD

C

Y

VCR1 IN

C

Y

TV/MONITOR OUT

C

Y

3

12

NJM2279D

VIDEO SELECTOR

10

13

2

10

IC301

11

MAIN_CIN

DPASS

VGCA

MMD_CTRL

12

3

VIDEO A

80

24

27

69

VIDEO A

C

REMOTE

9

Z901 (REMOTE SENSOR)

IC302

NJM2279D

VIDEO SELECTOR

2

11

D302

D301

VIDEO B

79

VIDEO B

+B

CM DO

COM CK

CM DI

COM DI

COM DO

HOLD

22

CM CK

70 71 72 76 78

RESET

10

Q901

RESET

MOTOR DRIVER

2,5,

8

MAIN_CIN

CM RQS

CM RQM

COM REQS

COM REQM

SYSTEM CONTROL/FL DRIVE

Q902

REGULATOR

+B

IC501

BA6218

M

7 9

Drive

Direction select

1

3

60

61

VOL

VOL UP

IC901

M38B57MCA242

DOWN

16

+B

6

+B

11

16

+B

VDD

+B

VDD

VEE

VREF

28

74

-B

+B

4~7,

9~15

IC902

BU2090A

I/O EXPANDER

DATA

VSS

2 3

1

18

LED DATA

Q0~11

CLK

17

LED CK

RCH

+VD

18

+VD

-VD

+B

1

+B

4

-B

6

RCH

10

3

RCH

9

D652

5

-B

2

-B

19

-B

14

-B

13

+B

15 7

18

+B

1

+B

4

+B

+Vcc Hi

-VHout

-IN 1ch

20

21

22

12

8

11

-IN 2ch

+IN Gnd

IH Det

Gnd

Overload Display

+

IC602

RSN313H25-P

POWER AMP HIC

Out 1ch

DC Det

Out 2ch

Over Det

-VHout

-Vcc Hi

-VccLow

+VccLow

Mut Out

AC Det

+Vcc Hi

-VHout

MAIN_LIN

Q651

RELAY

DRIVE

CONTROL

MAIN_LS

L.P.F

+VD

18

+Vcc Hi

-VHout

+B

1

+B

4

-B

H.P.F

-IN 1ch

20

21

22

12

8

11

-IN 2ch

+IN Gnd

IH Det

Gnd

Overload Display

-

+

IC601

RSN313H25-P

POWER AMP HIC

Out 1ch

DC Det

Out 2ch

Over Det

-VHout

-Vcc Hi

-VD

-VccLow

+VccLow

Mut Out

AC Det

6

10

3

9

5

-B

2

-B

14

-B

18

-B

13

+B

15

7

L.P.F

3

4

THERM/OVLD

KEY4

-IN 1ch

20

21

22

12

8

11

-IN 2ch

+IN Gnd

IH Det

Gnd

Overload

Display

-

+

-

+

IC651

RSN313H25-P

POWER AMP HIC

Out 1ch

DC Det

Out 2ch

Over Det

-VHout

-Vcc Hi

-VccLow

+VccLow

Mut Out

AC Det

-VD

6

RCH

10

3

9

D652

5

2 19

14

13 15 7

Q652

RELAY DRIVE

CONTROL

-B

-B +B

H.P.F

-B

Q612

SWITCH

Q615

LIMITTER

Q611

SWITCH

+B

-B

Q614

SWITCH

Q616

LIMITTER

Q613

SWITCH

+B

TO TUNER MODULE

RLY

S/C SP

AMUTE

M

63,75

SD

TCE

65~67

TCK

IF DATA

IC901

M38B57MCA242

SYSTEM CONTROL/FL DRIVE

SEG

X OUT

X IN

14

15

1~16

33~48

49~58

DEG1

1~10

INIT IN

59

TDT

21

5

OVERLOAD2

SEL2

SEL1

23

64

LIMITER

32

29

S/C SP

AF MUTE

25

RLY

SP A

SP B

30

31

SP B

KEY

1,2

S-DET

SP A

1,2

CF901

VR901

FL DISPLAYFL901

(INPUT

SELECTOR)

KEY

SWITCH

AMUTE

Q1681

(Q1682)

MUTING

R ch

HP601

HEADPHONES

SPEAKER

H.P.F

Q653

RELAY DRIVE

CONTROL

OVER DET

OUT

MMD

SP A

SP B

S/C SP

OUT

OVER DET

RLY

S-DET

C

Q606

SIGNAL

AMP

Q701,Q703,Q704

+B

REGULATOR

-B

Q754

REGULATOR

Q708,D708

REGULATOR

Q706

SWITCH

Q607

RELAY DRIVE

Q601

RELAY DRIVE

Q602

RELAY DRIVE

Q603

RELAY

DRIVE

-B

Q723

REGULATOR

Q725

REGULATOR

Q724

+B

REGULATOR

RL601

RL603

Q707,D707

REGULATOR

RL605

RL602

RL604

RELAY

DRIVE

D701~D704

D721~D728

FL DISPLAY

(FL901)

Q751

Q772~Q778,

Q780,Q781

FAN MOTOR

F3

F4

AC1 AC2

DRIVE

M

-B

FAN MOTOR

T701

Z751

(MAIN)

POWER TRANSFORMER

F1

FRONT

SPEAKER(B)

FRONT

SPEAKER(A)

SURROUND

SPEAKER

CENTER

SPEAKER

RL751

(SWITCHED)

L701

JK792

AC OUTLET

JK791 AC IN

IC1701

PQ30RV11

REGULATOR

+B

SIGNAL LINES

MAIN SIGNAL LINE FM & AM SIGNALS LINE CD SIGNAL LINE

( ) indicates Pin No. of right channel.

Q1701~Q1703 REGULATOR

Q752,Q753

RELAY

+B

DRIVE

RECORD SIGNAL LINE

D741~D744

D751~D754

F5

T751

(SUB)

POWER

TRANSFORMER

PLAYBACK SIGNAL LINE

DVD (AUDIO/VIDEO) SIGNAL LINE

M38B57MCA242 (80p) M38B57M6154F (80p)

CS4226-KQG (44p)

1

NJM2279D

8

14

1

7

2SA1534AQRTA 2SC3940AQSTA

E

C

B

RSN313H25-P

1

TC9162AN TC9163AN

28

1

2SD1915FTA

B

C

E

BA6218

TC9459F

AN6558F

NJM2115D

13

9

1

26

PQ30RV11

24

1

CS49326-CLR

12

NJM4580DD

NJM4580EDTE1

5

8

4

1

SNAHC1U04DBV

BU2090A

NJM2296D

9

16

1

8

SN74LV244APW (20p)

SN74HCT244PW (20p)

15

14

B

C

E

2SK2880CTA

D

G

S

B

C

No. 1

2SB1548PQAU

2SD2374PQAU

E

2SB621AQSTA

2SC1845FTA

E

C

B

SN74HCU04APW (8p)

1

DTA114YETL

2SA933SSTA

2SC1740SSTA

RVTDTA113ZST

RVTDTC113ZST

RVTDTA114EST RVTDTC114EST RVTDTC114YST

RVTDTA143XST

MTZJ10CTA MTZJ16CTA MTZJ27DTA

MTZJ30BTA MTZJ3R0BTA MTZJ3R3ATA MTZJ3R9ATA MTZJ5R1BTA

RVTDTC143XST RVTDTA114YST

B

C

E

MTZJ5R6BTA MTZJ6R2BTA

MTZJ6R2CTA

MTZJ6R8BTA MTZJ7R5CTA MTZJ8R2CTA

1SS291TA

RVD1SS133TA

2SD2137PQTA

B

C

E

1SR35400V

A

Anode

Ca

Cathode

1N5402BM21

RK306LFU1

A

Anode

Ca

Cathode

SLR325MCT31

SLR325YCT31 SLR325VCT31

Anode

Cathode

A

RB721Q40T77

Ca

Cathode

A

Anode

Ca

ABCDEFG

1

AC IN/OUT P.C.B. (REP3021B-P)

2

JK791

J221 J222

L701

3

AC IN

4

120V-60HZ

W1

(BLACK)

W2

(WHITE)

JK792

AC OUTLET

W3

(BLUE)

5

EARTH TERMINAL P.C.B. (REP3020B-S)

6

W355

231

E351

7

8

9

ABCDEFG

1

2

3

4

DTS MODULE P.C.B (REP2703D-T)

C1003

C1026

C1005

C1007

L1001

20

C1024

R1025

R1020

R1013

R1012

R1021

R1022

18

20

IC1001

25

28

2930 35 39

R1028

C1031

C1030

C1008

C1004

CN1002

R1014

C1029

R1015

C1001

C1002

R1016

R1017

12345678910111213141516171819

R1018

7101517

R1029

R1019

6

44

R1027

L1002

C1053

1

5

10

R1024

IC1003

R1023

C1025

1

IC1004

1

5

40

10

R1038

R1037

R1039

16

C1040

R1040

20

15

11

R1036

20

15

11

C1006

R1035

C1038

C1041

CN1001

C1036

R1034

C1037

C1034

R1033

C1027

13

IC1006

R1054

R1052

R1053

C1046

C1047

R1067

R1051

R1066 R1065

R1050

R1064

45

C1044

C1045

123456789101112131415

R1026

C1035

R1043 R1044 R1045

R1046

R1048

R1031

C1033

1

5

10 11

C1050

C1049

R1030

IC1005

810 14

R1049

L1004

157

C1032 C1039

R1041

C1043

4044

IC1002

12 15 20

C1048

C1051

R1068

R1063

R1062

C1052

R1069

X1001

R1032

R1042

35

C1009

C1042

34

22

R1055

R1061

R1058

R1060

33 30

25 23

R1057

R1059

Q1001

C

C1010

C1011

R1056

L1003

E B

R1047

5

(SIDE:A)

DTS MODULE P.C.B (REP2703D-T)

6

7

8

9

(SIDE:B)

ABCDEFG

1

FRONT VCR3 INPUT P.C.B.

E

S-VIDEO P.C.B. (REP3020B-S)

F

(REP3020B-S)

VR3

RL

36

JK352

R422

2

AUDIO IN

IN

3

VIDEO

R424

W355

51

3

3 2

2 1

1

C358

42

R422

R421

C443

R423

R351

C442

C441

J356

J356 J357

J357

J358

J359

J360

J200

J361

123456

12

J201

S301

W351

162

345

W353

2

1

3

W352

2

1

3

7891011

JK301

TV OUT

VCR1

DVD

1 5

24

1

5

1 5 24

1

2345

C305

3

42

3

W354

4

KEY P.C.B. (REP3020B-S)

G

C306

R305

R306

R301

R302

6

R309

J167

C304

C302

C303

R308

C301

R304

R307

R303

C313

R310

C309

8

7

J165

8

7

C311

1112 13

910

IC301

R313

J166

9101112 13

IC302

R314

C314

D301

C308

3456

2

C307

J164

D302

23456

J161

C310

14

1

14

1

R312

J163

R311

R315

J168

C312

J162

R316

5

R1699

W905

J195

1

DVD6CHVGCA

Z901

J175

J189

C926

D937

C925

GND

VCC

345678910

J185

S914

J349

2

C927

J184

J184 J183

J183

3

3 2

2 1

1

J199

J177

J176

R944

MEMORY

DSP_MODE

J193

J193 J194

J194

S909

R941

R937

J186

S912

S907

J191

R938

J192

PRESET

R931

S908

R945

R932

S902

SP_ASP_BBI-WIRE

S911

TU_UP

R934

FM_MODE

J354

S906

J198

R935R936

TU_DW

R933

S903S904

BAND

S905

J196

J353

J352

J351

J350

R1682

R1681

R1692

R1684

R1683

R1694

R1686

R1685

R1696

Q1682

R1688

R1687

R1698

J223

R1690

R1689

Q1681

R1697

B

B C

C E

E

R1695

CP503

34

B

B C

C E

E

2

C1685

R1693

1

R1680

R1679

R1691

12

11

J197

J190

R955

1011121314

9

IC902

7

R939

R942 R943

J190

R954

J182

S913

C924

15

16

23456

18

J355

CP502

2

1

34567

8

6

J188

J187

5

J180

4

J181

3

7

3

2

W907

1

D936

J179

J178

R951

D935

R950

R957

8

SENSOR

9

HG

J353

VOLUME P.C.B. (REP3021B-P)

I

IJKLM

J432

C544

C551

89

J431

7

C553

C543

4

5

J425

6

R543 J208

J206

R545R546

1

J212

IC503

8

C552

1

2

345

J220

J429

C502

L502

DC

RS LS

LR

VOLUME

C501

R503

R501

23

45678

19

J211

R502

J210

R556

J205

NC

J203

C504

J218

C548

R549

J219

R554

R555

E501

C503

IC501

L501

VR501

J202

C541

C547

1

4

5

IC502

1

8

C542

J436

R550

C549

C550

J444

8

23456

7

CN502

J207

R551

J428

J430

J427 J426

R547 R553

R552

J209

R544

J204

CN501

10

C545

4

5

C555

C554

1

8

J433

J216

J434

IC504

J215

J435

R483

C486 R484

C487

R485

C485

R542

J213

R541

J214

CP451

1 2 3 4 5 6 7 8 9

1 2 3

CP506

J196

J352

J351

J350

R1682

R1681

R1692

R1684

R1683

R1694

R1686

R1685

R1696

Q1682

R1688

R1687

R1698

J223

R1690

R1689

Q1681

R1697

B

B C

C E

E

R1695

CP503

34

B

B C

C E

E

2

C1685

R1693

1

R1680

R1679

R1691

S901

POWER

SEMICONDUCTOR LOCATION

REF NO.

D935 B7 D936 B7 D937 D6 IC902 C7 Q1681 G7 Q1682 G7 S901 H6

S902 S903 S904

LOC NO.

E6 F9 E9

REF NO. LOC NO.

S905 F8 S906 E8 S907 D8 S908 E8 S909 D9 S911 E6 S912 D6 S913 C7 S914 C7 Z901 C8

HEADPHONES P.C.B.

J

(REP3020B-S)

34

2

14

3

CN503

1

HP601

HEADPHONES

2