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Standard Repair Process Detail Technical Manual
Error Symptom
Content
< Sub Ass'y>
①
1, 2. Check IR cable condition between IR & Main board
3. Check the ST-BY 3.5V on the terminal 4
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.
Copyright © 2015 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
D. Function Error, No Response in remote controller, Key error
Remote controller operation checking method
②
< Main Ass'y>
Established date
2015.04.17
Revised date
P4600
1
KEY2
③
2
3.5V_ST
3
GND
4
LED_R/BUZZ
④
5
IR
6
GND
A17
LGE Internal Use Only
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