Remote Control Operation Checking Method; Function Error - LG 65UH8500 Service Manual

Standard Repair Process Detail Technical Manual
Checking order
1. Check IR cable condition between IR & Main board.
2. Check the st-by 3.5V on the pin 18
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Only for training and service purposes
Error
symptom
Content

Remote control operation checking method

D. Function error
A22
Established
date
Revised
date
P4000 Pin map
1 +3.5V_WIFI
2 WIFI_DM
3 WIFI_DP
4 GND
5 WOL_Power_On
6 3D_Sync
7 BT_Reset
8 GND
A22
12 EYE_SCL
13 EYE_SDA
14 GND
15 IR
16 LED_R
17 GND
18 +3.5_ST
19 KEY2
20 KEY1
21 GND
LGE Internal Use Only