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LG OLED55E9PUA
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Standard Repair Process Detail Technical Manual
Remote control operation checking method
D. Function error
A15
Established
date
Revised
date
Error
symptom
Content
A15
1. Check IR cable condition between IR & Main board.
2. Check +3.5V_ST on pin 4()
3. AS checking the Pre-Amp of IR B/D() , the power is in ON condition, an Analog Tester
needle should move slowly, otherwise, it’s defective.
Pin Pin name
1 LED_R
2 GND
3 IR
4 3.5V_ST
5 GND
6 GND
7 EYE_SCL
8 KEY2
9 EYE_SDA
10 KEY1
11 n.c
12 GND
13 3.5V_WIFI
14 GND
15
COMBO_RESET_JA
CK
16
BT_WAKEUP_HOS
T
17
WOL/WIFI_POWER
_ON
18 GND
19 3.5V_WIFI
20 WIFI_DP
21
WIFI_SUSPEND/RE
SUME_JACK
22 WIFI_DM
23 GND
24 3.5V_WiIFI
25 GND
IR & EYE Sensor
Eye LED IR
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Only for training and service purposes.

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