Remote Controller Operation Checking Method - LG 42LB5800 Service Manual

Standard Repair Process Detail Technical Manual
symptom
LCD TV
<ALL MODELS>
Checking order g
1, 2. Check IR cable condition between IR & Main board.
3. Check the st-by 3.5V 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_ No response in remote controller,
t
key error k
Content

Remote controller operation checking method

①
Established
date
Revised
date
②
30 / 97
2014. 1 .6 2014 1 6
A27
P4102 P4102
1 GND
2 KEY1
3 KEY2
③
4 +3.5V_ST
5 GND
6
LOGO/LED_R
④
7 IR
8 GND
9 9 EYE_SCL EYE SCL
10 EYE_SDA
LGE Internal Use Only