Skyworth 4S03 Schematic
2324
AGC
AGC
OUT
AFT
PIF
OUT
PLL
1 2 3
R903
220
C917
0.22u
220K
9V
VT
B0
B1
HEAT
D018
4148
AFT
MUTE
5V
B0
B1
AFT
S5V
RGB IN
R012
5.1K
R013
5.1K
R014
5.1K
R001
ON/OFF
C002
47u
IRIN
5V
R050
330
C019
4.7u
D\K
B\G
R931
220K
100K
C918
22
AGC
CAP
CVBS
OUT
C900
0.1UR930
BU
BH
B0
B1
GND
BL
VCC
IC003
LA7910
R058
680
R009
100K
R045
10K
ASM
Q003
C1815
1u
IF
LAGC
IN
IC901
STV8223
SW1
38M
4 5
C919
10n
L902
10uH
1
2
3
4
5
6
7
8
9
C001
4.7u
R053
68K
R005
10k
R006
10k
R007
100K
R011
22K
AV P+
SEL
10K
R059
VD001
R015
820
18
192021
IF
GND
IN
AUDIO
38M
FILTER
6 7 8
L901
38M
trf1062
BU BT BH AGC BL AFT BM IF
C101
1u
C103
D017
4148
R059
47K
R008
120K
Q001
2SC1815
V+
P_ V_
STORE
Q004
R070
10K
R060
10K
IC003
16
17
VCC
Aext
IN
SIF
MUTE
9
TUNER
C102
0.1u
1u
C104
47u
1
2
MUTE
3
4
SEARCH
5
6
B0
7
B1
8
AFT
9
RGB IN
10
KEY
11
KEY
KEY ROW
13 30
KEY ROW
14
KEY ROW
15
16
D/K
17 26
18
B/G
I
19
N/M
20
21
S OUT
A OUT
VIDEO
VIDEO
IN ININ
OUT
10 11 12
C926
10u
C106
1u
C105
1u
R106
33k
POWER
RESET
V.SYNC
H.SYNC
IC001
ST63T87
VCC
SCL
SDA
AV IN
IRIN
GND
OSC
OSC
VT
8M
8M
VOL
Vext
FB
B
G
RGND
131415
R106
100
42
41
40
39
38
37
36
35
34
33
32
3112
29
28
27
25
24
23
22
R101
10K
R103
4.7k
R105
100
R102
10K
R041
R040 4.7K
R029
12K
C016
150P
L002
D701
4148
D702
4148
D703
4148
D704
4148
SAW901
K9261
C109
0.01u
C005
47u
4.7K
R038
22K
Q002
1815
R028
3.3K
X001
8M
C011
15P
47uH
C010
15P
C107
47u
R045
10K
C013
15P
C012
15P
C022
10U
SCL
R900
18/3W
2 1
3
IC903
7805
C923
.01
R905
100
12VIF1
SDA
STEREO BOARD(OPTIONAL)
C108
R037
22K
AV IN
R026
10K
R024
10K
R023
3.9K
R020
3.9K
R021
3.9K
R022
3.9K
0.01u
C113
1u
+5V
SCL
SDA
+5V
R031
22K
C017
0.1u
33K
R027
22K
R025
22K
R032
R033
33k
C003
1u
VR101
10K
R130
C129
0.68u
C128
0.1u
R034
33K
C015
0.1μ
IC002
KIA7045
C110
0.01μ
AGC
PIF
PLL
68
POWER
IRIN
+32V
+5V
FLYV
FLYH
OSD FB
OSD B
OSD G
OSD R
1
VT
R132
1k
R129
220K
OUT
C924
.01
R904
100
C915
10n
C913
R108
5.6K
R109
1.2K
2324
22
AGC
AGC
CAP
OUT
CVBS
AFT
OUT
2 3 4
220P
C115
9V
T602
C602
220P/AC400V
T601
C601
F601
5V
SW
ON/OFF
~220V 50Hz
C921
10n
42
10u
IF1
L102
1uH
Q101
2SC388
R112
22
C114
1u
LAGC
C125
15P
4148
R128
150
R127
2.2K
4/5W
R602
T2A
Q901
1015
1
IF1
C927
10n
R111
R110
680
C112
0.01u
21
SW1
L105
D102
C127
47P
0.1u/250V
CN601
C920
10n
SCL SDA
5
C914
10n
+9V
100
C111
47u
SWA101
K2959M
C116
0.01u
181920
IF
IF
IN
STV8223
38M 38M
5
GND
IN
IC101
AUDIO
FILTER
6 7 8 9 10
C124
trf1062
R126
10K
C126
56P
L106
8.2μ H
L107
8.2uH
RT601
MZ72-18
SW601
DGC-HL-25
CF102
6.5
CF103
5.5
CN602
L601
D106
R125
2.2K
R605
6.8K
VR601
R606
3.3K
IC902
STV8203
VCC
SIF
IN
1u
D105
2K
R903
C906
22p
35
C912
220n
C950
10U
9V
17
MUTE
4700/500V
4700/500V
R607
1.8K
Q601
C1815
D602
8.2V
6
R603
2.2
20k
C905
32
11
Q920
1815
5V LO
C961
C960
5n6
IC904
R951
10K
SR SL
1516
S OUTA OUT
VIDEOVIDEO
OUTIN
C121
0.47u
R608
8.2K
R609
10K
D603
9.1V
22p
30
C911
10p
5n6C962
R952
10K
VOL
11
9V
R127
2.2K
R610
6.8K
R922
560
R960
2K
C964
0.1u
C901
C952
21L
TVR TVL
1314
Vext
IN
12
R121
R122
10K
10K
D/K
D601
1J4B41
C603
680P/500V
D604
IS1835
C609
47u/50V
R920
10K
.33u
TDA7449
1U
VIDEO OUT
B/G
4700/500V
R604
330
C608
0.033
X901
27M
10
SDA
SCL
1 2 3 4 5 6 7 8 9 10
C117
47u
Aext
IN
C122
0.1u
CF1O5
CF106
C604
C605
MAIN BOARD
15
LO
C910
10u
TVL TVR
C902
VIDEO IN
C120
0.47u
C606
Q602
2SB774
R611
4.7K
C965
.33U
1U
C904
100n
RO
C909
1n
R921
10K
21R
R234
470
CVBS
R622
2.2
D605
D606
R961
C963
.1U
C951
1U
R613
27
1K
25
C908
220n
11121314151617181920
R902
220K
R923
560
SW1
R233
470
C607
100u/400V
C903
10u
22
RESET
21
C901
10u
Q921
1815
9VR0
5V
VIDEO OUT
C702
.1U
1 2 3 4 5 6 7 8 9 10 11 12 13 14
C701
.1U
5V
V0
Q610
S9V
C2703
C202
C201
100U
0.01u
BYI
C219
0.01u
4142
3.58M 4.43M CLPF ACC SDA
GND2
C237
0.22u
X203
R202 270K
9V
1
C610 47u
1
C611
R612
0.1u
12
Q609
2SC1815
20
21
R411
R413
560
68
Q405
1815
R418
1K
VIDEO IN
X701
13.875M
R627
2K2/0.5W
C251
47u
C220
0.01u
C243 3.3P
Q604
5148
1
C704
15P
IC202
STV2180
C221
0.01u
3940
2M2
R293
C239
0.1u
C240 4700P
C612
2200P/1600V
R615
6
39
C703
15P
IC701 STV5348
RYI RYO BYO
R222
18K
R616
330K
R614
0.2
111213141516171819
SCART
R457
75
G IN
FB
R IN
TELETEXT(OPTIONAL)
D706
OSD G
R207
10
C252
0.1u
0.01u
LFB/SCBY IRY IRY OBY OVCC2
C224
33n
R221
0.0022/400V
R617
8.2M/0.5W
4148
OSD B
R239
3.9K
R215 1.5K
C211
4700P
Hout
SCL FTUN1 FTUN2
C225
56P
R082
100
330K
SDA
T603
C613
D705
4148
OSD R
9V
C218
38
CN404
AV IN
B IN
C705
47P
D707
4148
D708
4148
OSD FB SCL
22V
H.SYNC
V.SYNC
R238
1k
C212
1000P
C216
1u
C227
C226
0.1u
56P
R081
100
SCL
21L
SDA
C615
4700P
D607
RG2
C619
D608 1835
LO
21R
C706
47P
1516171819202122232425262728
R212
4.7K
VOL SW1
C228
0.1u
680P
2345678910
1
C442
0.1u
C439
1000P
RO
MUTE
SR
V.AMP
R210
22K
X201
500K
IC201
STV2112
R225--R232
OSD B
R625
L605
15K
90uH
C616
47u/160V
C431
0.1u
8
IC402
TDA1905
9
10
11
12
13
14
15
16
5 4 2
C401
0.1u
8
9
10
11
12
13
14
15
16
C412
0.1u
C409
1000P
+18V
SL
9V BC
R209
10K
C208
3300P
OSD B OSDG OSD R
CT Ro
C206
1u
VD201
4148
R208
C207
220K
0.1u
R205
2K2
C231
C232
0.01u
0.01u
270 270
270
OSD G OSD R OSD FB
IC004
UPC574
2
C321
47u/160V
R624
27/1W
1
R623
1k
C620
4.7u
C617
1000u
C432
1
47u
3
6
C433
2.2u
7
1
IC401
3
TDA1905
6
7
5 4 2
C411
47u
+18V
Go
Bo
R202
R203
R204
470
C233
0.01u C234
OSD
FB
470
Q609
1815
D610
27/1W
470
2728293031323334353637
Bext
0.01u
330
B
8.2V
R626
R432
1.5K
C434
0.1u
R433
4.7
R436
220
C436
4.7u
C402
R402
47u
1.5K
C403
2.2u
R406
220
C406
4.7u
C413
C410
.01U
470u
C205
0.1u
CBCRBoRo GoICATBCL503KHZSLPFVampVout
Rext
Gext
0.01u
C235
75 75 75
G
R FB
C006
1u/50V
C621
470u
R307
1K
D307
1N4148
C405
470u
C404
0.1u
R403
4.7
C204
0.1u
CG
181716151413121110987654321
0.01u
C236
IC601
7805
R321
2.2
2
R308
2.7k
Q301
2SC2482
C435
470u
R219
4.7K
C203
0.Iu
CHR/SVHS
19
75
C014
0.01u
C007
100u
C304 0.1u
R310
2200/500V
XP201
R206
1K
POWER
680P
C322
CN402
CN401
VCC1
GND1Y/CVBSFBext
32V
18V
R216
VD203
4148
R218
2223242526
2120
S9V
+5V
4.7K
10
C222
0.01u
H.SYNC
FLYH
9V
12V
T301
XS201
C223
100u
C302
470u
B402
SPEAKER
B401
SPEAKER
CT
R
G
B
9V
GND
180V
HEAT
GND
X502
9V
SC
9V
D306
4148
IC302
7809
C318
470p
R315
2.2/1W
R306
3.3K/3W
3
R310
22/0.5w
FLYV
BC
22V
SC
D303
1
C305
680P
C325
100u
C317
680P
1835
R328
680
Q302
2499
Q501
1015
FLYV
R502
R501
10K
VCC1
D301
IN4002
R319
1.5K
C306
470u/35V
D304
1835
R316
1
4.7/2w
R305
1
1
C314
2200P/1600V
47K
VD501
IS1555
TDA8174
V out BC GND
VP
91011
R311
22K/0.5W
D302
1835
R504
R503
68K
510
C501
33P
R506
4.7K
R507
510
C502
33P
R510
4.7K
R511
510
C503
33P
R514
4.7K
1N4001
VD502
R508
68K
R512
68K
R505
620
R509
620
R513
620
3
11
4
STV5111
6
1
14 13
C507
47u
IC501
2 5
12
10
15
C509
9
7
0.1u
C504
470P
R515
470
C505
470P
R517
470
C506
470P
R519
470
C510
4.7u/250V
VD503
IN4148
R516
4k7
VD504
IN4148
R518
4k7
VD505
IN4148
R520
4k7
CRT BOARD
SYNV
IC301
POWER
V Sin
8
R323
10K
R302
8.2M
R325
22K
67
C210
0.047u
R318 1.8K
C323
47u
R329
1.8K
C301
4.7u
C312
1u/160V
R320
2
V AMP
2.2
1
R317
2.2
45
R316
120K
R322
100K
C326
1000u
R324
100
R320
2.2
R312 1K
C311
0.47u/250V
C315
680P/500V
D305
C1835
VCC2
123
R326
270/0.5w
L301
TLN2055
C303
2.2μ /250V
T302
FBT
C313
0.01u/1600V
SKYWORTH ELECTRONICS CO.,LTD
TITLE :
SYSTEM: PAL/SECAM/BG/DK/NICAM/TELETEXT/SCART
P / N :
REV DATE:
SCHEMATIC DIGRAM(4S03)
0502-559900-00
1999 10 18
AMPV
R315
22K
R322
1K/0.5W
C324
0.47u
R327
2.2
XP301 XS301
XP301 XS301
R309
8.2K
V-DY
H-DY
+180V
HEAT
GND
HV
FV
SV
2200p/1K6V
22V
L362
C308
0.047u
CRT
C511
V501
A48QA220X
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