Skyworth 4S02 Schematic

BSC24-0405

TITLE:

SCHEMATIC DIAGRAM

BOM NO: DIGITAL 4S02-3008
SYSTEM:
P/N:

REV DATE :

PAL/SCAME/DK/I/NTSC
0502-212805-01
9 MAY 1998

MAIN BOARD

BU BT BH AGC BL AFT BM IF

R011
22K

R059

R056

5.1K

C001

4.7u

R005

10k

R006
10k

10K

TUNER

C101

1u

D017
4148

R053

R059

68K

47K

R052

5.1K

C004

0.01U

R008
120K

Q001
2SC1815

P_ V_

SEL

Q004

R070

10K

R060
10K

IC003

R055

R054

5.1K

5.1K

VT

B0

B1

SEARCH

HEAT

D018

4148

AFT

MUTE

5V

SEARCH

B0

B1

AFT

S5V
RGB IN

R012

5.1K

R013

5.1K

R014

5.1K

ON/OFF

IRIN
5V

D\K
B\G

I
M/N

5V

R001

C002
47u

R050

330

C019

4.7u

1

2

3
4

5

6
7

8

9

IC003

LA7910

R058
680

R009
100K

R045

10K

AV P+

ASM

100K

Q003
C1815

R057

5.1K

R007
100K

VD001

R015
820

C102

0.1u

C103

1u

C104

47u

1

2

3

4

5

6

7

8

9

10

11

V+

13 30

14

STORE

15

16

17 26

18

19

20

21

MUTE

SEARCH

B0

B1

AFT

RGB IN

KEY

KEY

KEY ROW

KEY ROW

KEY ROW

D/K

B/G

I

N/M

C106

1u

C105
1u

R106
33k

TRF1019

IC001

ST63T87

L101

VCC

SCL

SDA

AV IN

POWER

IRIN

RESET

GND

OSC

OSC

V.SYNC

H.SYNC

VT

8M

8M

R504

R503

510

VD501
IS1555

VP

R302

8.2M

R311

22K/0.5W

D302

1835

C313

C501

33P

R506

4.7K

R507

510

C502

33P

R510

4.7K

R511

510

C503

33P

R514

4.7K

VD502

1N4001

BC

V OUT

R323
10K

R325
22K

C312

1u/160V

0.01u/1600V

R508

R512

GND

R318 1.8K

R329

1.8K

RO

RI

LO

1 AROUT

2 ARIN

3 ALOUT

4 AGND

1815

R124
10K

R412

22k

C121

0.47u

R608

8.2K

R609
10K

D603

9.1V

5 BGNG

R414

560

SOUND OUT

C118

0.01u

S OUT

VIDEO

OUTIN

9V

C036

0.01u

R610

6.8K

VOL

Vext

R122
10K

R127

2.2K

47u/50V

SCL

SDA

CVBS

GND

5V

OSD R

OSD G

AGC

CAP

T602

C602

C601

SW

L102

1uH

Q101

2SC388

R112

22

C114
1u

22

LAGC

SW1

C125

15P

4148

R128

150

4/5W
R602

0.1u/250V

T2A

~220V 50Hz

OSD B

R111

21

L105

D102

C127

47P

CN601

100

R110

680

C112

0.01u

IF
IN

38M

trf1062

R1324.7K

IF
IN

38M

C126

56P

L106

8.2μ H

L107

8.2uH
CF102

CF104

RT601

MZ72-18

SW601

DGC-HL-25

+9V

C111
47u

SWA101
K2959M

6.5

CF103

5.5

6.0

CN602

L601

GND

AUDIO
FILTER

R126
10K

R125

2.2K

9V

SW1

C116

0.01u

C124

1u

D106
D107

D108

R123

10K

R605

6.8K

VR601

2K

R606

3.3K

9V

AUDIO IN

17181920

VCC

SIF

IN

C123
1000P

D105

Q104

1815

4700/500V

Q601
C1815

6

R603

2.2

SCART

Q402
1815

AUDIO OUT

AUDIO OUT

C117

47u

Aext

IN

MUTE

C122

0.1u

CF106
CF107

CF108

CF101

4.5

C604

C605

4700/500V

R607

1.8K

D602

8.2V

Q401
C1815

R450

10k

A OUT

VIDEO

CF1O5

Q103

OSD FB

TELETEXT

R101

R102

10K

10K

C107

C108

47u

C

C013

15P

C012

15P

22K

R037

C

R026
10K

R024
10K

R023

3.9K

R020

3.9K

R021

3.9K

R022

3.9K

0.01u

C

C113

1u

+5V

SCL

SDA

R031
22K

C017

0.1u

33K

R027
22K

R025
22K

R032

1u

R033
33k

C003

R107
22K

D101

4148

R131

10K

R130

C129

0.68u

C128

0.1u

R034

33K

C015

0.1μ

IC002

KIA7045

C110

0.01μ

68

POWER

FLYV

FLYH

OSD FB

OSD B

OSD G

OSD R

R108

5.6K

R109

1.2K

Q102
2SC1815

C128

0.01

2324

AGC

AGC

OUT

PIF

PLL

IRIN

+32V

+5V

CVBS

AFT

OUT

OUT

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

220P
C115

R132
1k

R129
220K

VT

9V

220P/AC400V

T601

F601

5V

ON/OFF

R103

4.7k

C109

0.01u

R105
100

C

R106
100

L103 L104

R12110K

R114
47K

D103

3.9V

42

41

40

39

38

37

36

35

34

33

32

3112

29

28

27

FB

25

B

24

G

23

RGND

22

R041

R040 4.7K

R029
12K

C016
150P

L002

D701
4148

D702
4148

D703

4148

D704
4148

C005
47u

R038
22K

X001

C011
15P

47uH

C010

15P

Q002
1815

R028

3.3K

8M

4.7K

LI

B

7 BIN

6 ALIN

Q403

1815

C415

4.7u

13141516

IN

R121
10K

D/K

B/G

D601
1J4B41

C603
680P/500V

D604
IS1835

C609

AV IN

8 AV SW

Q404

1815

AUDIO IN

VIDEO OUT

VIDEO IN

C119

4.7u

IC1O1

STV8224

C120

0.47u

R120
10K

I

M/N

C606

4700/500V

Q602
2SB774

R604
330

R611

4.7K

C608

0.033

9 GGND

M/N

R417

R119
10K

R622

2.2

10 NC

R416
47K

47K

R234
470

CVBS

D605

D606

R613

27

G

11 GIN

V705

1815

SW1

R233

470

C607

100u/400V

12 NC

13 RGND

R415

560

R410
1K

VIDEO OUT

S9V

C202
100U

3.58M 4.43M CLPF ACC SDA

GND2

C237

0.22u

9V

C610 47u

C611

0.1u

Q609
2SC1815

R

14 GND

15 Rin

VIDEO OUT

R413
68

R411
560

C414

4.7u

D202

4148

C201

0.01u

BYI

RYI RYO BYO

C219

C220

0.01u

0.01u

4142

G203G202

R202 270K

R222

18K

R616

1

330K

Q604
BUH1555

1

R612
12

R614

0.2

F.S

16 FS

C243 3.3P

R293

2.2M

1

VIDEO out

18 FSGND

17 VGND

19 Vout

AUDIO IN

AUDIO OUT

C415

4.7u

9V

R207

C251

47u

IC202

STV2180

C218

C221

0.01u

0.01u
38

3940

C239

0.1u

C240 4700P

C612

2200P/1600V

R615

6

39

VIDEO in

20 Vin

VIDEO IN

10

C252

0.1u

R215 1.5K

C211
4700P

LFB/SCBY IRY IRY OBY OVCC2

C224

33n

C225
56P

R221

330K

SDA

T603

BCK-60-8N

C613

0.0022/400V

R617

8.2M/0.5W

21 GND

C412

0.1u

R409
75

C121

0.47u

VIDEO IN

H.SYNC

R238

1k

R239

3.9K

C212

1000P

C216

1u

Hout

STV2116

SCL FTUN1 FTUN2

C227

C226

0.1u

56P

R081

R082
100

100

SCL

C615

4700P

D607

RG2

C401

0.1u

C409
1000P

R408
10K

SOUND OUT

V.SYNC

R212

4.7K

VOL SW1

C228

0.1u

C619

680P

D608 1835

V.AMP

8

9
10
11
12
13
14
15
16

C411

R210
22K

IC401

TDA1905

5 4 2

47u

R407

1K

MUTE

9V

R209
10K

C208
3300P

C207

G201

500K

IC201

OSD B OSDG OSD R

R625

L605

15K

90uH

C616
47u/160V

+18V

C206
1u

0.1u

OSD B

2

1

3

6

7

R208

220K

C231

0.01u

270

C321
47u/160V

C617

1000u

C403

2.2u

C410
470u

BC

R205

R225

OSD G

R624
27/1W

C620

4.7u

C402

47u

VD201

4148

10K

C232

0.01u

270

IC004

UPC574

1

R623

1k

R402

1.5K

R406
220

C406

4.7u

CT

Ro

Go

R204
470

OSD

FB

C233

0.01u C234

R226

R227

270

OSD R

OSD FB

R203

470

Q609
1815

D610

27/1W

330

8.2V

R626

C405
470u

C404

0.1u

R403

4.7

Bo

Bext

R228

B

R202

470

2728293031323334353637

0.01u

Gext

R229

75

R307
1K

D307
1N4148

XP401

XP201

C205

0.1u

0.01u
C235

G

C621
470u

Rext

75

C006
1u/50V

C204

0.1u

CBCRBoRo GoICATBCL503KHZSLPFVampVout

181716151413121110987654321

0.01u

R230

R

R321

2.2

Q301

2SC2482

C236

IC601

7805

2

75

XS401

CG

R231

FB

R308

2.7k

XS201

R219

4.7K

C203

0.Iu

CHR/SVHS

19

R232

75

C007
100u

C304 0.1u

R310
2200/500V

R206

1K

VCC1

GND1Y/CVBSFBext

C014

0.01u

POWER

680P
C322

32V

18V

R216

4.7K

VD203

4148

R218

2223242526

2120

S9V

+5V

10

C222

0.01u

H.SYNC

B401

SPEAKER

C223

100u

FLYH

9V

T301

TLN1032

GND

180V
HEAT

GND

9V

SC

9V

D306

4148

IC302

7809

C318
470p

C302
470u

R306

3.3K/3W
3

22/0.5w

X502
CT

R

G

B

9V

FLYV

R310

IC301

TDA8174

C325

100u

BC

22V

SC

C317
680P

D303

1835

R315

1

2.2/1W

C305
680P

Q501

1015

470u/35V

R328
680

R305

2200P/1600V

Q302

BUH515D

FLYV

IN4002

C306

C303
470u

1

1
1

C314

R502

R501
10K

VCC1

D301

R319

1.5K

R313
1

D304
1835

R316

4.7/2w

47K

68K

68K

68K

C210

0.047u

C323

47u

C301

4.7u

R320

2.2

R317

2

2.2

IC501

3

R505
620

11

4

R509
620

6

1

R513
620

14 13

2 5

STV5111

C507
47u

CRT BOARD

V AMP

V.SYNC IN
34567891011

R316
120K

R322
100K

C326

1000u

R324
100

R320

2.2

R312 1K

C311

0.47u/250V

C315
680P/500V

1

D305
C1835

T302 FBT

T302

VCC2

12

10

15

C509

POWER
12

R326
270/0.5w

L301

TLN2055

C303

2.2μ /250V

C504
470P

R515

470

9

C505

470P
R517

470

7

C506
470P

R519

470

0.1u

C510

4.7u/250V

SYNV

AMPV

R315
22K

R322

1K/0.5W

C324

0.47u

R327

2.2

XP301 XS301

XP301 XS301

R309

8.2K

R524

100K

22V

H-DY

HV

FV

SV

VD503
IN4148

R516

470

VD504
IN4148

R518

470

VD505
IN4148

R520

470

C508

2.2u/250V

V-DY

+180V

HEAT

GND

R523

1M

L362

C308

0.047u

CRT

V501
A48QA220X

C511

2200p/1K6V

522

2.7K

D501
IN4004