Table of Contents
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Standard Repair Process Detail Technical Manual
symptom
Content
①
IR Ass'y
Eye
Checking order to check remote control
Checking order
1.Check IR cable condition between IR & Main board.( Check picture number① and ②)
2.Check the standby 3.5V on the terminal 12 pin (③)
3.AS checking the Pre-Amp(IR LED light) , the power is in ON condition, an Analog Tester
needle should move slowly, otherwise, it's defective.
Copyright © 2015 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Error
D. Function error
Remote control operation checking method
IR
②
Established
date
Revised
date
A22
A22
1
GND
2
+3.3V
3
WiFi_RESET
4
WiFi_DM
5
GND
6
WiFi_DP
7
EYE_SDA
8
GND
9
EYE_SCL
③
10
KEY2
11
IR
12
3.3V_STBY
13
LED_R
14
GND
LGE Internal Use Only
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