![background image](http://html.mh-extra.com/html/sharp/lc-20dv20u/lc-20dv20u_service-manual_373836066.webp)
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
IC8103 MM1501XNRE
SCART2 OUT CVBS SW
123
4
5
6
Q8102
KTC3875S_Y_RTK
SYSNC_SEPA
Q8103
KTC3875S_Y_RTK
SYSNC_SEPA
L8102
47uH
NLCV32T
L8105
22uH
NLCV32T
C8131
100
16V
V-S
C8149
220
6.3V
V-S
Q8101
KTA1504S_Y_RTK
SYSNC_SEPA
Q8106
KTA1504S_Y_RTK
BUFFER
Q8105
KTA1504S_Y_RTK
BUFFER
W843
W821
W861
W862
C8150
0.1
B
C8128
1 B
C8147
820P
CH
C8137
330P
CH
C8146
1 B
C8144
0.1
B
C8112
1 B
C8109
1 B
C8129
0.1
B
C8113
1 B
C8110
1 B
C8151
100P
CH
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
R8123
2.7K
R8128
12K
R8119
820K
R8125
12K
R8116
1K
R8130
4.7K
R8131
1K
R8113
100K
R8129
3.3K
R8105
150
R8104
150
R8101
150
R8148
100
R8103
150
R8146
1K
R8143
1K
R8102
150
R8145
100
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
SW_G/SW_Y
SW_Y/G
SW_PB/B
SW_PR/R
SW_B/SW_CB
P.CON+5V
SW_R/SW_CR
SW2_G/Y
SW2_B/CB
SW2_R/CR
C_SYNC
SD_SW1
SW_R/SW_CR
SW_G/SW_Y
SW_B/SW_CB
SW2_R/CR
SW2_G/Y
SW2_B/CB
SW_CVBS
SW_VIDEO_Y
SW_Y/G
SW_PB/B
SW_PR/R
P.CON+5V
P.CON+9V
P.CON+5V
GND
C_SYNC
SW_VIDEO_Y
SW_CVBS
SD_SW1
P.CON+9V
H-28
H-27
PCBDS0
CEF170
FROM/TO REGURATER
5.1
VCC
H
8.9
BUFFER
L
4.4
0
5.1
0
3.1
0.3
5.5
1.5
5.1
0
1.0
0.7
0
FROM/TO ADC
FROM/TO SCALER
FROM/TO MICON
0
0.7
5.0
0
0.7
5.0
AV SWITCH1 SCHEMATIC DIAGRAM
(SCALER PCB)