Samsung LW15M23C Service Manual page 52

11 Schematic Diagrams
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11-6 IR Board Schematic Diagram
CN1
KEY2
1
KEY1
2
3
HP_R
4
HP_L
5
IDENT_H/P
6
7
IR
8
3.3V_A
9
10
LED_RED
11
LED_GRN
12
13
14
12505WR-12
11-8
R1
OP1
1
10K
2
3
C2 C1
22u 100n
OP2
Y
2 4
1 3
G
LTST-C155GYKT
H3 H1 9
H2
1 1 1 1
1 1 1
1
HOLE HOLE HOLE HOLE
R101
7.5K
JACK1 SW101
1
2
6
3
KPS1105
4
TV/VIDEO
5
JA9333L-1M7
846HF
10
1
1
HOLE
R102 R103 R104
3.3K 6.8K 4.7K
SW102 SW103 SW104 SW105
KPS1105 KPS1105 KPS1105 KPS1105
MENU VOL- VOL+ CH-
R105
1.5K
SW106 SW107
KPS1105 KPS1105
CH+ POWER
LW15M23C