LG OLED48C3 Series Service Manual page 66

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
①
②
A13
Established
date
Revised
date
Pin
1
2
3
4
5
6
7 WIFI_SUSPEND/RESUME
8
9
10
11
12
13
14
③
15
16
17
18
19
20
21
22
23
24
25
26
Copyright © 2023 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
A13
Pin name
+3.5V_WIFI
WIFI_DM
WIFI_DP
GND
WOL/WIFI_PWR_ON
+3.5V_WIFI
GND
COMBO_RESET
BT_WAKE_UP_HOST
GND
+3.5V_WIFI
EYE_SDA
EYE_SCL
GND
GND
IR
LED_R
GND
GND
+3.5V_ST
+3.5V_ST
+3.5V_ST
KEY2
WOV_PDMO_DATAIN
WOV_PDM_CLKOUT