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Standard Repair Process Detail Technical Manual
symptom
Content
① IR & EYE Sensor
Eye
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 (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
LED
IR
②
Voice
Recognitioin
MIC
Established
date
Revised
date
A13
Pin
Pin name
1
LED_R_JACK
2
GND
③
3
IR_JACK
4
+3.5V_ST
5
GND
6
N.C.
7
EYE_SCL_JACK
8
KEY2_JACK
9
EYE_SDA_JACK
10
WOV_PDM0_DATAIN_JACK
11
N.C.
12
WOV_PDM_CLKOUT_JACK
13
+3.5V_WIFI
14
GND
15
COMBO_RESET_JACK
16
BT_WAKEUP_HOST_JACK
17
WOL/WIFI_POWER_ON_JACK
18
GND
19
+3.5V_WIFI
20
WIFI_DP_JACK
WIFI_SUSPEND/
21
RESUME_JACK
22
WIFI_DM_JACK
23
GND
24
+3.5V_WIFI
Copyright © 2020 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
A13
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