Toshiba 20HL85 Service Manual page 40

A B
8
7
6
DVD_U/SW_PB
FROM/TO JACK
DVD_Y/SW_Y
VGA-G
SCART1_G_IN
VGA-R
DVD_C[V]/SW_PR
VGA-B
5
VGAHS
VGAVS
HDMI_Y
HDMI_PB
HDMI_PR
FROM/TO MICOM
C_SYNC
SD_SW1
VGA/YUV
COMPONENT/HDMI
SCL1
SDA1
SYNC_HD
4
FROM/TO SCALER
SCART1_R_IN
SCART1_G_IN
SCART1_B_IN
SCART1_B_IN
SCART1_R_IN
SW_CVBS
SW_VIDEO_Y
DVD_Y/SW_Y
DVD_U/SW_PB HDMI_Y
DVD_C[V]/SW_PR
HDMI_PB
HDMI_PR
FROM/TO ADC
P.CON+5V
3
SYNC_HD
SYNC_VD
SW_Y/G
SW_PB/B
SW_PR/R
FROM REGURATOR
P.CON+3.3V
P.CON+9V
P.CON+5V
GND
2
COMPONENT/HDMI
1
A B
G-21
C
AV SWITCH2 SCHEMATIC DIAGRAM
W909
W910
W908
R8101
1M
NC NC
8 7 6 5 4 3 2 1
9 10 11 12 13 14 15 16
R8102
C8105
1M
C8106
16V 10 V-S
16V 10 V-S
L8101
22uH
3.3
SW
W858
Q8104
0 KRC102SRTK
0
CAUTION: DIGITAL TRANSISTOR
C
D E
(SCALER PCB)
10K
R8108
X8101
100CT3R536
3.579545MHz
33
NC NC NC NC NC
0.7 1.0 1.0 2.0 0 5.1 2.8 3.5 3.5 4.0 2.0 1.0
30 29 28 27 26 25 24 23 22 21 20 19 18
1 2 3 4 5 6 7 8 9 10 11 12 13
9.0 NC 2.0 3.5 1.0 0 1.0 0 NC 0 6.4 5.2 0 0 5.0
NC
34
W886
W885
R8109
1M
NC NC
8 7 6 5 4 3 2 1
9 10 11 12 13 14 15 16
R8110
1M
C8115
C8125
16V 10 V-S
16V 10 V-S
SCART2 OUT CVBS SW IC
IC8103 MM1501XNRE
C8112
8.9
VCC
H
5.1
2.2 B
R8113 R8116
4.4
0
BUFFER 100K 1K
C8113
C8128
0
L
5.1
2.2 B
1 B
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
D E
F G
SYNC_HD
SYNC_VD
NLCV32T
L8103
P.CON+5V
47uH
NC
0 5.0 0.7
17 16
14 15
5.0 5.0
R8127
R8126 1K
SCL1
R8124
100 SDA1
100
VGAHS
VGAVS
P.CON+9V
SW_Y/G
SW_PB/B
SW_PR/R
VGA-R
VGA-B
VGA/YUV
VGA-G
35
C_SYNC
SYSNC_SEPA
Q8103
KTC3875S_Y_RTK
1.0
R8129 R8130
0.7
3.3K 4.7K
0
5.1
SYSNC_SEPA
Q8101
SYSNC_SEPA
KTA1504S_Y_RTK
Q8102
5.5
KTC3875S_Y_RTK
1.5
3.1
R8125 C8146
0.3
12K 1 B
0
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
F G
H
8
7
6
5
4
3
2
PCBDS0
CEE082
1
H
G-22