Remote Controller Operation Checking Method - LG 42LB550A Service Manual

Standard Repair Process Detail Technical Manual
Error
D. Function error_ No response in remote controller,
Established
2013. 01 .09
symptom key error
date
LCD TV
Revised
Content A17

Remote controller operation checking method

date
<ALL MODELS>
②
③
①
Checking order
1, 2. Check IR cable condition between IR & Main board.
3. Check the st-by 3.5V on the terminal 4.