LG 65LA970V Service Manual page 129

Standard Repair Process Detail Technical Manual
symptom
LCD TV
<**LA965*-Z*>
①
<**LA970*-Z*>
①
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.
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Error
D. Function error
Content
Remote controller operation checking method
②
A22
Established
2013.01.31
date
Revised
date
1
2
3
③
4
5
6
7
8
④
A22
P4002
GND
KEY1
KEY2
+3.5V_ST
GND
LED
+3.5V_ST
GND
LGE Internal Use Only