Toshiba VTV1534 Service Manual

FILE NO. 140-200229

SERVICE MANUAL

COLOR TELEVISION/ VIDEO CASSETTE RECORDER

VTV1534

TV BLOCK DIAGRAM

T' TEXT

IF/21PIN/ IN/OUT

MICON/ OPERATION

Y/C/AUDIO/ HEAD AMP

MICON/ OPERATION

AC IN

SW_VIDEO

TEXT_SYNC

REAR_V_IN

TU_AUDIO

REAR_A_IN_L

REC_TU_V

JACK_V

AV1

AV2

Y/C_VIDEO Y/C_AUDIO

SDA

SCL

F501

TU601

11

1

4

5

+B ADJ

Q507

F-BACK SW

Q607

PRE AMP

CF601

154

VR502

IC506

LTV-817M-VB

FEED BACK

L503 DEGAUSS COIL

VIDEO SW

9

IC603 LA7956

6

4

1

AUDIO SW IC602 NJM2534V

5

POWER CONTROL IC IC501 TEA1507P/N1

3

D501

RECTIFIER

21_B 21_G

Q602

BUFFER

FB401

3 7

10

2

Q609 SWITCHING

Q406

H.OUTPUT

1

S

F

HV

Q603, Q611

SW

Q812

BLUE AMP

J801

3 9 7 8

F

4

3

1

2

Q608

CF605

S-TRAP

BUFFER

V-DRIVE IC IC401 TDA8174A

3

4

11

1

10

2

Q405

H-DRIVE

CHROMA IC IC601 STV2246C

CVBSIN1

18

6

PIFIN1

7

PIFIN2

8

RF_AGC_OUT

2

7

55

AUDIO_OUT

EXT_AUDIO_IN

14

11

FM_OUT

51

SCL

52

SD A

13 44

CVBSOUT2

INT_CVBS_OUT

CVBSIN2

20

47 25 26

22

VERT

Y/CVBS_IN3

B_EXT/U_EXT

27

28

BLK_EXT

R_EXT/V_EXT

G_EXT/Y_EXT

B. OUT

G. OUT

R. OUT

OSD_BK

OSD_B OSD_G

OSD_R

BCL/SAF

LBF/SSC

H_OUT

X1/VAMP/CHR_OUT

XTAL1

30

31

32 37 34 35 36

46

49

48 42

40

Q811

GREEN AMP

Q810

RED AMP

X601

4.433619MHz

21_R 21_Y

H_CTL

PROTECT

VD

TEXT_Y TEXT_B

TEXT_G

TEXT_R

SP351

HD

IF/21PIN/ IN/OUT

DY

V801

CRT

MICON/ OPERATION

T' TEXT

MICON/ OPERATION

SPEAKER SP352

SOUND AMP IC

9V REG. IC IC3001 KIA78R09API

4

1

2

P. CON+9V

5V REG. IC

3

IC3002 KIA78R05PI

412

P.CON+5V_C

AT+5.6V

P.CON+5V_A

T501

11

9

15

1

2

13

16

8

CP810

5

7

6 3

AT+12V

5V REG. IC IC3004 KIA78R05PI

412

5V REG. IC IC3003 KIA7805API

1

IC352 AN7523

6 1 9

5

4

2

7

6 2

3 4 5 1

SPEAKER

TV_POWER_H VOL CTL

VCR_POWER_H

J351 HEAD PHONE

MICON/ OPERATION

E-1

E-2

PDC/VPD DECODER IC4002 SDA5650/X

CVBS

17

SDA

SCL

4

5

Y/C/AUDIO/CCD/ HEAD AMP IC4001 HA118217F

Y/C/AUDIO/HEAD AMP BLOCK DIAGRAM

X4001

4.433619MHz

79 75

78

73

Q4006

BUFFER

Y/C_VIDEO

TV

Y/C_AUDIO

555860

54

52

CYL.

MICON/

OPERATION

AC HEAD

FE HEAD

CP4001

2

SP-CH2 (L)

3

SP COM SP-CH1 (R)

4

ENV.DET

VCR_A_MUTE

V.REC_ST_H

CP4005

1

AE HEAD (+)

2

AE HEAD (-)

3

CTL-

4

CTL+

5

AUDIO REC

6

AUDIO PB

CP4004

FE HEAD (HOT)

1

FE HEAD (GND)

2

VV_H

SCL

SDA

H.SW

CTL+

CTL-

Q4002

OSC

Q4001

NORMAL A

REC ST SW

Q4003

V.REC ST SW

1

3

L4005

PB SW

Q4015

Q4004,Q4005

PB SW

6 5 4

86

87 88 89

29

62 63 81 84 99

AGC

2

4

2MLPF

H.AMP

REC

MUTE

SERIAL CONT

INTERFACE

ENV DET

PRE

AMP

REC

EQ

P

R

8

7

HPF

R

HPF

REC

MUTE

9

P

ACC

TRAP

LPF

+

CTL TRAP

fh HPF

MIX

P

R

P R

DELAY

LEVELADJ

B.E

C.K

P

VCA

R

629

TRAP

7M LPF

1M HPF

LINE

MUTE

LINE AMP

11

FM AGC

LAG LEAD

LPF

FM MOD

F0/DEV ADJ

S-DET

L4001

VCA

CLPF

R

P

+

P.EQ S DL

MAIN EMPH

CARRIER

OFFSET

15.6KHz TRAP

CONV1

FBC ALC

W.C/DC

MAIN

SQPB

Q4007

+

RP

P

R

DEMO

DE-EMPH

AMP

CCD

LPF

CLPF

MAIN

CONV2

RP

BPF

G EQ D LIM

SLPF

MAIN

C.K

N-->P

B.D

6dB AMP 6dB AMP

C SQUELCH

NL EMPH

NL DE EMPH

RP

YLPF

P

18

CLEAR

SYNC

C CCD

SQUELCH

R

P

Y APA

YNP

CLAMPR

VIDEO ALC

VIDEO

AGC

D.E N.C

FBC

2 1

Y CCD

P

R

CLAMP

LPF

24

ATT

46

35

42

39

28

30

3 1

FRONT_V_IN

REAR_V_IN

REAR_A_IN_L

REC_TU_V

IF/21PIN/ IN/OUT

FRONT_A_IN_L

26

1923

REC_TU_A

E-3

E-4

AT+5.6V

SW1001

1 4

3

2

14

2

3

MS_SEN A

Q1009

MS_SEN B

Q1003

MICON/OPERATION BLOCK DIAGRAM

SYSCON/TIMER/SERVO IC1006 OEC0113B

53

TAB SW

MS SEN-A

28

MS SEN-B

27

/RES

EXT_IN_L

DA RGB SW

AV1 AV2

TUNER_MUTE

77

40

98

87

62

91

OUT

1

SYSTEM RESET IC1002 R3111N311A/C

AV_2

AV_1

EXT_IN_L

TV

TUNER_ON/OFF

SCL

IF/21PIN/ IN/OUT

SDA

TU_AUDIO_MUTE_H

E-5

DECK

TV

P. CON+5V

AT+12V

VCR_POWER_HTV

CP1001

CAP FG

1 2 CAP VCO 4

CAP/M/F/R

I LIMIT

5

CYL/LAD VCO

8

CAP CTL

9

LDM CTL

1110CYL FG/PG 12

CYL CTL

PROTECT

AT+5.6V

H_CTL

Q1017

EOT

D1003

Q1002

LED SW

1

234

1

234

32.768KHz

Q1006

BOT

REEL SENS.

Q1005

REEL SENS.

X1002

X1001

10MHz

Q1021

VCR POWER

SW

Q1001

REEL T

70

REEL S

69

76

X1

75

X2

80

OSC2

78 OSC1

51

VCR_POWER_ON-H

CFG

9

71

CAP FWD-L

83

CAP_LIMIT CAP FULL

72

67

LDM_CTL

104

DFG

102

CYL_SPEED_UP

H_CONTROL

97

PROTECT OFF

66

BOT

25

26

EOT

55

CENT LED

VCR_MUTE

CTL(+)

CTL(-)

V.REC.START-H

VV-H

VIDEO H.SW

IIC_DATA_0

IIC_CLK_0

VSYNC

HSYNC

TEXT RESET

VOLUME_PWM

KEY-A

TV_POWER_ON-H

KEY-B

REC/OTR_LED

T-REC LED

STAND BY

89

3

4 90 73

105

24VIDEO-ENV

D791

5 SDA 6

SCL

POWER ON/OFF

CH DOWN

D792

EEP ROM IC1099 BR24C08F

Q1016

HD SW

CH UP

REC/OTR

Q1015

VD SW

VOL. UP

STOP/EJECT PLAY FF/CUE

AT + 5.6V

VOL. DOWN

60 59

15 14

B

101

G

100

99

R

96YCO

61 85

30

Q1014

50

TV POWER

SW

29

OS753

1

43REMOCON_IN

D793

46 45

Q4212

48

POWER ON

SW

VCR_A_MUTE CTL+ CTLV. REC_ST_H VV-H

H. SW

ENV_DET

SCL SDA

VD

SDA SCL

HD

SCL SDA

OSD_B OSD_G OSD_R OSD_Y

TEXT RESET

VOL CTL

TV_POWER_H

REW/REV

Y/C/AUDIO/ HEAD AMP

TV

T' TEXT

TV

E-6

IF/21PIN/IN/OUT BLOCK DIAGRAM

MICON/ OPERATION

TUNER ON/OFF

EXT_IN_L

TU_AUDIO_MUTE_H

V TRAP

CF6001

1

3

L6006

S TRAP

CF6005

VIF IC6001 LA7567B

LIM

MAP

3

MIX

HPF

12

VCO

11

10

VIDEO

8

DET

Q4210

SW

Q4211

MUTE SW

PLL

IF

AGC

FM DEM

MIX

HPF

VIF

AMP

RF

AGC

Q4207

PERI SW

241

18 19

14

TU1101

5

4

1

11

5 4 1

CF6002

Q6005

PRE AMP

CP6001

11

IF

9

AGC

6

TU AUDIO

3

TU VIDEO

AV JACK J701

2 4

SDA SCL

REC_TU_A

REC_TU_V

FRONT_V_IN

FRONT_A_IN_L

MICON/ OPERATION

Y/C/AUDIO/ HEAD AMP

Q6001

6

BUFFER

TV

21_B

21_G

21_R 21_Y

J4201

2

6

8

1

3

7

11

16

15

20

19

Q4201, Q4202

BUFFER

REAR__A_IN_L REAR_V_IN

Y/C/AUDIO/ HEAD AMP

REAR_V_IN REAR__A_IN_L

TU_AUDIO

TV

JACK_V

REC_TU_V

E-7

E-8

T' TEXT BLOCK DIAGRAM

T'TEXT IC1201 ET-TVT008B

MICON/ OPERATION

TEXT_RESET

SDA

SCL

OSD_R OSD_G

OSD_B

OSD_Y

TRIPLE ANALOG MPXER IC IC1202 MM1231XF

1

IN 1B

OUT1

3

14

OUT2

5

IN 2B

6

9

IN 3B

OUT3

2

SW1

16

7

SW3

IN1A

11

12

IN2A

SW2

8

IN3A

Q1262

BUFFER

BLK

32

3 2

27

28

29

30

11 20

19

RSTB SDA

SCL

BLANK

BLUE

GREEN

RED

VINP VIDEO IN

SYNC

OSC IN

OSC OUT

X1201

13875KHz

41

42

TV

TEXT_R TEXT_G

TEXT_B TEXT_Y

SW_VIDEO

TEXT_SYNC

Q1253

SYNC

BUFFER

E-9

E-10

PRINTED CIRCUIT BOARDS

MAIN/CRT/POWER SW (INSERTED PARTS)

SOLDER SIDE

D802

Q802

C432

TP805

L803

R806

Q811

D411

W849

Q803

TP806

R

808

Q812

L804

C429_1

C424_1

B401

L802

D803

C803

Q801

Q406_1

W850

D801

0

4

Q810

TP804

R

8

C814

W853

R830

L801

FB401_1

R447

B403

HS402

C423_2

B402

CP850

CP803B

L401

R448

R829

C422

CP401

C450

C418_1

R420

C

803

P

R417

R405

R407

R816

W024

D413

R411

A

W027

R490

R460

J801_1

C430_1

R419

VR401

C405

R828

C431

C417

C414

R409

L402

CP403

VR402

R421

C412_1

W025

W833

R406

W814

R413

C408

R410

W023

CP820

C402

R404_1

R416

R456

W020

CP802_1

W022

W021

W017

R403_1

W011

R412

IC401

W013

R453

C410

C403

W008

D403

HS401

W019

C404_1

T401_1

R423

Q405

CP801

C808

Q505

D405

W016

D406

W009

CP503

W018

W810

D515

W010

R505

Q502

R519

Q503

W015

W036

TP503

R504

R518

R512

R418

Q504

CP810

W014

D514

D512

R506

C510

C520

D504

D533

R502

R554

D523

D516

CD502

R507

C517

TP501

SW501

C518

C501

S102

S101

D510

C523

D528

W815

CD501

W005

C531

C509

C521

W006

D506

S502

R514

S501

VR502

ICP502

C513_1

D509

ICP504

D519

W007

Q507

W801

C519_1

D505

D502

Q506

W802

B502

IC506

C524

TH501

RY501

R509

W004

R511

D507

T501_2

L502

D508

C542

R501_1

CP502

W001

C503

C511

D

B501

5

0

IC501

C507_1

1

R529

R522

5

C

CP501

4

0

C530

C

C506_1

5

C543

3

R538

C529

L501

R527

D524

D503

W002

F501

C505_1

Q501

HS501

FH502FH501

F-1 F-2

PRINTED CIRCUIT BOARDS

MAIN/CRT (CHIP MOUNTED PARTS)

SOLDER SIDE

C807

R535

R513

R515

R508

C413

R817

R810

R815_1

R805_1

C804

R821

R813_1

R809_1

R812

C806

R811

R819

R814

C805

R807

R534

R531 C541

R533

R516

R523 R510

R532

R525

C554

R553

C528

R520

F-3 F-4

PRINTED CIRCUIT BOARDS

SYSCON (INSERTED PARTS)

SOLDER SIDE

CD602

SW1001

R1025

C1003

C1203

W426

W422

W420

D1203

W408 W407 W405

W397

W415

L1205

W382

W424

C1202

W385

C1273

D1201

C1214

X1201

D1010

W383

Q1003

W394

W389

W404

W403

W402

W400 W399

W884

W854

C1206

D1006

C1021

W406

W401

R1051

D1002

W396

W423

C1205

C1274

W893

W387

W384

Q

1005

R1262

B1201

W869

W391

W410

L1204

W429

Q1009

R1050

D1017

W413

W838

W293

W285

W412

W335

W333

W354

W414

W291

W286

W322

C1256

L1203

W321 W320

W319

W349

W326

W325

W359

C1093

Q1001

W376

W297

R1055

W316

W352

W329

W324

C1257

W284

W313

W341

W380

W296

W311

W309

W306

W343

W361

W360

C1207

Q1101

W317

C1103

W294

W304

W362

R1082

W337

R4071

W379

W366

W299

W288

R1016

W867

W377

W370

W292

W287

W323

W302

W825

CP4203_1

L1001

W314

W351

W353

L4002

C4084

W878

W290

W348

D1003

W822

W327

X1001

R4041

TP4002

W364

W344

W328

TP4001

W342

W334

W378

Q

W350

W368

1006

W310

C4078

L4013

L4019

W318

W336

L4007

W289

W283

W308

W301

W330

L4016

L4011

Q1017

W300

W312

C4088

W357

R4065

W367

C1070

W282

W307

W332

W258

D4202

C1048

W811

W303

W340

W331

C4069

W250

C4092

C4095

W365

W433

C1013

R1029

W281

W212

C4074

W233

C4057

C4050

W254

W273

CP4202_1

C1090

C1031

W232

W210

W244

C4040

R4089

R4088

W274

C1047

W229

L4015

W275

W209

W222

W827

W241

W260

W277

C1016

W431

W227

X1002

W434

W205

W194

W228

W211

W243

TP1001

W200

W197

W192

P

C

W226

X4001

W255

C

1

P

00

4

1

W225

C4073

C4077

4

0

R1072

W193

C1005

W190

C4071

W242

W239

W269

W188

W216

W245

D1001

W206

W196

W189

W223

W268

R1068

W195

W231

W219

W213

L4009_2

S1104X

R4049

W249 W280

W264

W203

W230

Q4002

C4001

L4012

W276

W218

Q4001

C4055

W235

W261

W432

W198

D605

W214

L4024

W262

C4024

C662

W208

W221

W933

L4025

W204

W220

C4051

C4041

W263

C3011

W089

W202

W199

W191

L4005

Q4004

Q4005

C4066

C4049

C4031

L4026

CP4001_1

R3002

R650

W224

W238

C4017

IC3001

W090

W087

C666

S1104Y

W247

W435

R4021

C4039

CP601

W119

W118

C4009_2

L4003_2

W240

W237

C4036

W142

W851

W083

R647

W117

W129 W126

L4004_1

C4015

C4108

W081

W080

W077 W076

W116

D3003

W133

CP4005

L4001

W139

W115

W113

W110

W135

D4001

C3008

C683_1

D604

W112

W109

W107

W105

W102

W124

W802

L4008

W182

W166

W095

W106

W150

W148

W178

R3022

IC3002

W147

IC3004

W086

C636

W108

W128

W160

R3005

R4029

W186

W185

W174

W170

W169

D3001

W091

C681

C645

L613

W885

W137

R3007

W123

W958

HS3002

W141

W140

W183

W175

W094

W084

L611_1

W161

Q3001

R630

R648

W079

C638

C3009

R3003

W179

C641

W156

R629

L608

R614

C3010

R628

CF605 W103

HS3001

L602_2

W127

C635

W145

W173

W430

X601

C611

C610

D3004

W093

W845

W131

W171

R3001

C652

W132

C3007

W099

W092

L612

IC603

L604_1

C616

C665

W149

W168

W111

L614

C627

W143

W187

W856

W167

C3002

C653

C650

W078

CF601

L607

W134

W159

HS352

CP6001

CP3001

W096

C664

TP601

W157

W158

R306

W894

W165

W085

W097

C606

W154

W908

W832

W164

C649

Q607

L606

D603

W038

R307_1

C302

W071

C648

C613

C663

R303

W017

C642

W033

D351

W073

W067

IC3003

W018

D602

TU601

W039

L609_2

W054

W051

W074

W812

W070

C1133

C630

L610_1

IC601

W057

IC352

SH601

D3002

W035

W030

W011

W023

C603

W034 W032

W050

R613

D609

W022

C4201

R635

C626

W042

W053

C3006

CP851

W021

W843

W045

C322 W810

W072

W020

D4203

R4225

W014 W013

W010

W008 W007

D610

D611

R664

L4202_1

C4226

W040

D1021

R309

W886

R4209

W025

C301

R1289

R665

C4213

L4203

W041

W849

L1102_2

L1103_2

C1186

W005

C4209

W818

W069

W006

W004

W001

D4210

W909

W036

W809

C306

W075

W015

W003

R4207

L4204

C672

C1187

TP1102

D1252

W002

D1202

W912 R4224

C680

C679

C667

R4201

W024

W876

W817

W026

W065

W068

D1261

J4201

W028

W047

R4210

W911

W031

W049

W012

C1284

TP4201

CP603

W063

W052

W048

L1101

TU1101

F-5 F-6