LG 65UJ6300 Service Manual page 68

Standard Repair Process Detail Technical Manual
symptom
Content
<ALL MODELS>
IR & LOGO light Front
IR & LOGO light Rear
Eye 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 standby 3.5V on the terminal 22 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
②
IR
Established
date
Revised
date
A22
1 +3.5V
2 WIFI_DM
3 WIFI_DP
4 GND
5 WOL_ON
6 3.5V
7 COMBO_RESET
8 GND
9 COMBO_WAKEUP_DEVICE
10 COMBO_WAKEUP_HOST
11 GND
12 GND
13 NC
14 NC
15 NC
③
16 EYE_SDA
17 EYE_SCL
18 GND
19 IR
20 LED
21 GND
22 3.5V
23 KEY2
24 KEY1
25 GND
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A22