LG 37LH250H Service Manual page 36

IR & LED & CONTROL
P1100
12507WS-12L
LED_B
1
LED_R
2
GND
3
KEY1
4
KEY2
5
5V_ST
6
GND
7
NC
8
IR
9
GND
10
NC
11
NC
12
13
GND
RJP
+12V
L1237
MLB-201209-0120P-N2
C2223
C2220 C2221 C2222
47uF
47uF 47uF
0.01uF
25V
25V 25V
JK1100
MJ-657PT-8-SD
1
1
R2466
2
2
R2467
3 R2464
3
4
R2468
4
R2465
5
5
6 R2469
6
7
7
8
8
9
9
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
TUNER
R1104
0
LED_GR 009:R32
R1105
0
LED_AM 009:R33
D1101
50V 50V
D1102
UDZS5.1B
UDZS5.1B 1000pF 1000pF
5.1V
C1102 C1104
5.1V
CB3216PA501E
ZD1110
C1108
C1106
5.6B ZD1112
0.1uF
1000pF
5.6B
50V 16V
L1100
BG2012B080TF
IR
008:O6;009:Y8
ZD1111 C1101
100pF
50V
5.6B
Q1118
SI4925BDY
S1 D1_2
1 8
C2230
OPT R2476
47uF
G1 D1_1
C2224 10K
C2256 2 7 25V
0.01uF
4.7uF
25V
R2470
S2 D2_2
10K
3 6
R2474
R2472 100K
5.1K G2 D2_1
4 5
R2473
5.1K
100
RJP_CTRL0
009:N30
OPT
100
RJP_CTRL1 009:N31
100
RJP_CTRL2 009:N31
100
RJP_CTRL3 009:N31
100
RJP_CTRL4 009:N31
+5V_ST_PTC
L1103
BG2012B080TF R1115
100
KEY_CTL_0
009:AD29
L1104
R1116
BG2012B080TF
100
KEY_CTL_1
009:AD28
+5V_ST_PTC
L1102
09.05.19
37LH250H
11 14
IR&RJP