LG 55G2 Service Manual page 119

Standard Repair Process Detail Technical Manual
LCD TV
<XXG2-UG>
Checking order
1, 2. Check IR cable condition between IR & Main board.
3. Check the st-by 3.3V on the terminal 6.
4. When checking the Pre-Amp when the power is in ON condition, it is normal when the Analog
Tester needle moves slowly, and defective when it does not move at all.
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Only for training and service purposes
Error
D. Function error
symptom
Content
Remote controller operation checking method
①
②
A27
Established
2011. 12 .14
date
Revised
date
1
2
3
4
5
③
6
7
8
④
9
10
A27
P4102
SCL
SDA
GND
KEY1
KEY2
St 3.5V
GND
GP4_LED_R
IR
GND
LGE Internal Use Only