P4002
1
GND
2
KEY1
3
KEY2
4
+3.5V_ST
5
GND
6
LED
7
+3.5V_ST
8
GND
Checking order
1, 2. Check IR cable condition between IR & Main board.
3. Check the st-by 3.5V on the terminal 4,7.
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.
Standard Repair Process Detail Technical Manual
Remote controller operation checking method
D. Function error
A22
Established
date
Revised
date
Error
symptom
Content
LCD TV
A22
①
②
③
④
2013.01.31
<XXLA965V-ZA>
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
Содержание 55LA9659
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Страница 75: ...LCD TV Repair Guide 13 years New Models Applicable Model XXLA965V ZA ...
Страница 83: ...FRC B D ULTRA HD Block diagram ...
Страница 114: ...Appendix Exchange Power Board PSU No Light Dim Light Dim Light Dim Light ...