LG OLED55C3 Series Service Manual page 63

Standard Repair Process Detail Technical Manual
symptom
Content
IR & EYE Sensor
LED
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 Main standby 3.5V on the terminal. (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
②
Established
date
Revised
date
①
A13
Pin Pin name
1 +3.5V_WIFI
2 WIFI_DM
3 WIFI_DP
4 GND
5 WOL/WIFI_PWR_ON
6 +3.5V_WIFI
7 WIFI_SUSPEND/RESUME
8 GND
9 COMBO_RESET
10 BT_WAKE_UP_HOST
11 GND
12 +3.5V_WIFI
13 EYE_SDA
14 EYE_SCL
③
15 GND
16 GND
17
18 LED_R
19 GND
20 GND
21 +3.5V_ST
22 +3.5V_ST
23 +3.5V_ST
24 KEY2
25 WOV_PDMO_DATAIN
26 WOV_PDM_CLKOUT
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A13
IR