LG 42LY750H Service Manual page 34

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
IR/KEY Block
+3.5V_ST
R4118
R4117
10K
10K
5% 5%
R4113
100
KEY1
R4114
D4101
100
5.6V
KEY2
AMOTECH CO., LTD.
C4100 C4102
OPT
0.1uF 0.1uF
D4100
5.6V
+3.5V_ST AMOTECH CO., LTD.
OPT
L4100
BLM18PG121SN1D
C4104
1000pF
50V
LED_R
+3.5V_ST
R4107
3.3K
IR
P4101
12507WR-08L
GND
1 1
KEY1
2 2
KEY2
3 3
+3.5V_ST
4 4
GND
5 5
LOGO/LED_R
R4125 10K
6 6
IR
7 7
GND
8 8
NON_EYE_Q_8P
R4137
100 9
I2C_SCL2 9
EYE_Q_10P
D4105
ADMC 5M 02 200L
10
R4138 OPT
EYE_Q_10P
100
I2C_SDA2
11
EYE_Q_10P
D4106
P4102
ADMC 5M 02 200L
12507WR-10L
OPT
C4107 D4104
5.6V
100pF
50V
xxLY750H-UA
2013.12.24
IR / KEY 9 21
LGE Internal Use Only