Service manual
24
51GT-25S
Page 22
1 2
3
4567
R
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Page 25
SCHEMATIC DIAGRAM (01 Version).
+2.5V
4447 46
2 3 4 5 6 7 8 9 10 11 12 13 14
+2.5V
6
+3.3V
15 16 17 18 19 20 21 22 23 24 25 26
4548 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27495051
321
+8V
RMC0001
RMCU0222CE
MUTE
POW
5V
SLOW
PROT
AGC
FRONT
VCC2.5
GND
VCC
CVBS
ANA VCC
ANA GND
V
VL
H
BG/L
IR
VSYNC
U
L/Lยด AGC
VH
GND
VCC
RESET
ANA GND
ANA VCC
R
G
B
BLK
VCC2.5
GND
VCC
KEY
KEY
KEY
SDA
SCL
KEY
VT
OUT
5V
+7V
8
7
FRONT
VIDEO
FLY BACK
RESET
R
FB
H OUT
B
VIDEO
SLOW
G
R254
0
R613
100
R836
680
D802
DX0045BM
R838
820
R803
4R7
R607
4K7
R901
1K
C825
.1
R801
100K
R1081
100
R1013
560
R1082
100
R1008
1K
R1007
220
R1006
220
R1005
220
X1001
6MHZ
B0100BM
FB1001
BLN-0020CE
Q1005
TX0235BM
R1056
10K
Q1004
TX0235BM
R1075
10K
R1024
10K
R256
6K8
R254
100K
Q1011
TX0235BM
R1018
15K
L1002
12uH
R1022
10K
R904
0
L1004
12uH
R1073
2K2
R1021
22K
D1012
DX0045BM
R1066
10K
R1028
3K3
X801
4.43MHZ
B0115BM
R837
0
R814
100
R815
100
R810
100
R816
100
C235
1000
(10V)
R806
2.2
Q801
TX0235BM
R608
2K2
R612
15K
R615
15K
D603
DX0045BM
D602
DX0045BM
D301
DX0045BM
R317
1K
C306
2.2
(50V)
R314
4.7K
(1/2W)
R315
820
R307
100K
R303
100K
R302
33K
R309
10K
C302
47
(10V)
R306
560
Q304
2SA1037KQ
R305
2.2
(1/2W)
R-XZ0204BM
R313
4K7
(1/2W)
R312
4K7
(1/2W)
Q303
TX0235BM
Q3021
BC636
H-TX0112BM
R308
100
R304
10K
R1077
4K7
R1035
22K
R1034
15K
D1013
DX0045BM
R1048
4K7
(1/2W)
R1049
4K7
(1/2W)
R1059
4K7
(1/2W)
R903
47
Q901
TX0235BM
R1090
10K
R1015
22K
L304
3.3uH (DF)
C304
470uF
(25V)
C301
1
(50V)
R1037
10K
C806
100
(16V)
C1008
22pF
C1009
22pF
C1033
1nF
C1005
100nF
C1028
1nF
C1011
5,6nF
C1023
220nF
C1024
150pF
C1026
100pF
C1003
100nF
C1027
100nF
C801
.1
C803
.1
C901
.22
C201
.047
C805
.1(Z)
C607
39P
C307
.015
C1013
.047
C1016
.047
C253
.01
C816
.001
C802
.1
L202
12uH
(DF)
C827
100P
IC201
TDA8842
RH-IX1812BMZZ
VIDEO IN .
24
GND .
25
NC .
26
AUDIO OUT .
27
CAL .
28
EXT VIDEO .
29
SENS .
30
B OUT .
31
G OUT .
32
R OUT .
33
ABL .
34
R IN .
35
G IN .
36
B IN .
37
FB .
38
Y IN .
39
Y OUT .
40
NC .
41
NC .
42
NC .
43
NC .
44
B-Y OUT .
45
R-Y OUT .
46
B-Y IN .
47
R-Y IN .
48
SECAN_REC .
49
.
50
XTAL .
51
. OSC_PLL
52
. VCC
53
. VIDEO_OUT
54
. BLACK
55
. H_OUT
56
. FLY_BACK
57
. FIL2
58
. FIL1
59
. GND
60
BGR
P402
(K)
.
1
.
2
.
3
.
4
.
5
P301
N0241CE
.
1
.
2
P301
10PZ7NA
.
1
.
2
IC1003
IX0037CE
C828
100P
C909
4700P
C906
.22
(25V)
R1012
10K
C807
.022
C829
100P
R1072
1M
R201
1K
C804
22uF
(16V)
C309
1
(160V)
Q305
TX0235BM
R318
15K
D601
C3V3
EX0403BM
C810
.1(Z)
R257
3K3
L1001
12uH
R1078
470
Q3011
BC636
H-TX0108BM
R1080
3K3
C1012
220nF
R1092
10K
R1029
10K
C1001
100nF
R1058
4K7
R1002
4K7
R809
100
Q1001
TX0235BM
C1015
100 nF
R1017
47K
Q1012
TX0235BM
C1019
10uF
R1014
100K
C308
220
(10V)
C1014
2.2uF
(50V)
D1021
C5V1
EX0408BM
C820
18P
Q1003
BF840
H-TX0113BM
FB301
BLN-0037CE
CF301
C0020CE
C1004
47uF
R902
220
C226
100P
C1032
330nF
FB1003
BLN-0037CE
D403
(7.5V)
EX0412BM
D411
DX0045BM
R316
33K
R1069
4K7
Q1013
TX0235BM