LG 43LF5900 Service Manual page 73

Standard Repair Process Detail Technical Manual
symptom
Content
<ALL MODELS>
①
Checking order
1, 2. Check IR cable condition between IR & Main board.
3. Check the 3.5V_WIFI on the terminal 2.
4. Check the B/T version value.
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Only for training and service purposes
Error
D. Function error_ No response in remote controller
Motion Remote controller operation checking method
②
Established
date
Revised
date
③
④
A29
P4000
1 GND
2
3.4V_WIFI
3 M_RESET
4 USB_DM
5 GND
6
USB_DP
7 SDA
8 KEY1
9 SCL
10 KEY2
11 IR
12 +3.5V_ST
13 LED_R
14 GND
LGE Internal Use Only