Service manual

ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
IC8103 MM1501XNRE
SCART2 OUT CVBS SW
123
456
C8122
1016V
V-S-NP
C8120
1016V
V-S-NP
C8121
1016V
V-S-NP
C8123
1016V
V-S-NP
C8124
1016V
V-S-NP
C8125
1016V
V-S-NP
IC8104 NJM2584AM(TE1)SW
1
10111213141516
2345678
9
Q8102
KTC3875S_Y_RTK
SYSNC_SEPA
Q8103
KTC3875S_Y_RTK
SYSNC_SEPA
L8102
47uH
NLCV32T
L8105
22uH
NLCV32T
L8104
47uH
NLCV32T
C8131
10016V V-S
C8149
2206.3V V-S
C8126
4716V V-S
Q8101
KTA1504S_Y_RTK
SYSNC_SEPA
Q8105
KTA1504S_Y_RTK
BUFFER
Q8106
KTA1504S_Y_RTK
BUFFER
W972
W964
W963
W1016
W900
W843
W944
W1017
W1018
W971
C8128
1B
C8147
820P CH
C8112
1B
C8109
1B
C8113
1B
C8110
1B
C8137
330P CH
C8146
1B
C8129
0.1
B
C8144
0.1 B
C8150
0.1B
C8151
100P CH
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
R8115 1M
R8123
2.7K
R8128
12K
R8119
820K
R8125
12K
R8116
1K
R8131
1K
R8113
100K
R8129
3.3K
R8130
4.7K
R8105
270
R8146
1K
R8143
1K
R8148
100
R8145
100
R8124
270
R8121
1M
R8120
1M
R8118
1M
R8117
1M
R8122
270
R8114 1M
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
SW2_G/Y
SW2_G/Y_1
SW_G/SW_Y
SW2_B/CB
SW2_B/CB_1
SW_B/SW_CB
SW_Y/G
SW_PB/B
SW2_R/CR_1
SW_PR/R
SW2_R/CR
SW_R/SW_CR
P.CON+5V
SW2_B/CB_1
VGA-G
SW2_G/Y_1
VGA-R
VGA-B
SW2_R/CR_1
YUV_SW
C_SYNC
P.CON+5V
SD_SW1
YUV_SW
VGA-R
VGA-B
HD/SCART_Y
SW_VIDEO_Y
SW_R/SW_CR
SW_G/SW_Y
SW_B/SW_CB
SW2_R/CR
VGA-G
SW2_G/Y
SW2_B/CB
P.CON+5V
SW_CVBS
C_SYNC
SW_Y/G
SW_PB/B
SW_PR/R
GND
P.CON+9V
P.CON+5V
SW_VIDEO_Y
SW_CVBS
SD_SW1
P.CON+9V
H-32
H-31
PCBDS0
CEF156
AV SWITCH1 SCHEMATIC DIAGRAM
(SCALER PCB)
FROM/TO JACK
NC
NC
NC
FROM/TO REGURATER
FROM/TO ADC1
5.1
VCC
H
8.9
0
BUFFER
L
4.4
0
5.1
0
3.1
0.3
5.5
1.5
5.1
0
1.0
0.7
FROM/TO MICON
0
0.7
5.0
0
0.7
5.0
OUT1
IN3B
GND3
IN2A
CTL
V+
IN2B
GND1
IN1A
IN1B
NC
GND2
OUT2
OUT3
NC
IN3A
FROM/TO SCALER
1.7
0
1.0
1.8
0
2.0
0
2.4
2.0
0
2.4
3.1
4.8
2.5
0
2.5