Schematic; Main Board - Haier LT22M1CWA Service Manual

22"LCD TV
10. Schematic Diagram

10.1 Main Board

CN108
1 RED
9
GRN
2
10
BLU
3
11
4
12 VGASDA_IN
5
13 HSY NC#
RED_GND
6
14 VSY NC#
GRN_GND
7
15 VGASCL_IN
BLU_GND
8
DB15
L113
HSY NC# 1 2
80 OHM
C192
5pF ZD125
UDZSNP5.6B
L114
VSY NC# 1 2
80 OHM
C196
5pF ZD127
UDZSNP5.6B
CN109 1
R218
VGAL_IN
2
1K OHM 1/10W
R219
VGAR_IN
3
PHONEJACK
1K OHM 1/10W
VGA_PLUGPWR
R244 NC
U0RX 12
R245 NC
U0TX 12
HSY NC 4,13
R198 C107
2.2K OHM 1/10W NC/5pF
VSY NC 4,13
R203 C109
2.2K OHM 1/10W NC/5pF
R204
R220 C120
3K OHM 1/10W
20K OHM 1/10W
10uF/10V
R206
R221 C122
3K OHM 1/10W
20K OHM 1/10W
10uF/10V
NEARLY VGA CON.
L111
GRN 1 2
80 OHM
C187
5pF ZD121
UDZSNP5.6B
GRN_GND
L112
BLU 1 2
80 OHM
C190 ZD124
5pF UDZSNP5.6B
BLU_GND
L101
RED 1 2
80 OHM
C194 ZD126
5pF UDZSNP5.6B
RED_GND
Change to 75 OHM 1/8W
14,20 HDMIED_WP
AIN0_L 10
VGASCL_IN
AIN0_R 10
VGASDA_IN
42
Haier LT22M1CWA&LT22M1CW
NEARLY IC
R188 C101 4700pF
0 OHM 1/10W
R189 C186 0.01uF/25V
39 OHM +-1% 1/10W
C102
NC/5pF
R192
R193 C188 0.01uF/25V
0 OHM 1/10W 100 OHM 1/10W
R194 C189 0.01uF/25V
39 OHM +-1% 1/10W
C106
NC/5pF
R196
R197 C191 0.01uF/25V
0 OHM 1/10W 100 OHM 1/10W
R199 C193 0.01uF/25V
39 OHM +-1% 1/10W
C103
NC/5pF
R201
R202 C195 0.01uF/25V
0 OHM 1/10W 100 OHM 1/10W
2
+5VSB
1
VGA_PLUGPWR
Q102
MMBT3904
RN101
R248
1
2
10K OHM 1/10W
3
4
4.7KOHM +-5% 1/16W
R205 100 OHM 1/10W
R207 100 OHM 1/10W
H : W P EN AB L E
ZD128 ZD129 L : W P D ISAB L E
SOG 4
GP 4
GN 4
BP 4
BN 4
RP 4
RN 4
D101
3
C197
0.1UF16V
BAT54C
8
7
6
5
U105
8 1
VCC E0
7 2
WC E1
6 3
SCL E2
5 4
SDA VSS
R165 M24C02-WDW6P
NC