LG 55LF5950 Service Manual page 74

Standard Repair Process Detail Technical Manual
symptom
LCD TV
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.
Copyright 2015 LG Electronics Inc. All rights reserved.
Only for training and service purposes
Error
D. Function error_ No response in remote controller
Motion Remote controller operation checking method
②
④
Established
2015. 04. 23
date
Revised
2015. 04. 23
date
1
③
2
3
4
5
6
7
8
9
10
11
12
13
14
A29
P4000
GND
3.4V_WIFI
M_RESET
USB_DM
GND
USB_DP
SDA
KEY1
SCL
KEY2
IR
+3.5V_ST
LED_R
GND
LGE Internal Use Only