LG OLED55C8PUA Service Manual page 63

Standard Repair Process Detail Technical Manual
symptom
Content
① IR & EYE Sensor
C8 Series
Eye
LED
Checking order to check remote control
1. Check IR cable condition between IR & Main board.( Check picture number① and ②)
2. Check the standby 3.5V on the terminal 4 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.
Error
D. Function error
Remote control operation checking method
IR
Eye
IR
E8 Series
LED
②
A13
Established
date
Revised
date
Pin
1
2
3
③
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Copyright © 2018 LG Electronics Inc. All rights reserved.
Only for training and service purposes.A
A13
Pin name
LED_R
GND
IR
3.5V_ST
GND
GND
EYE_SCL
KEY2
EYE_SDA
KEY1
n.c
n.c
GND
GND
WAKEUP_DEVIC
E
BT_WAKEUP_HO
ST
WOL/WIFI_POWE
R_ON
GND
3.5V_WIFI
WIFI_DP
COMBO_RESET
WIFI_DM
GND
3.5V_WiIFI
GND