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Standard Repair Process Detail Technical Manual
Standard Repair Process Detail Technical Manual
Error symptom
symptom
TV
Content
Content
① IR & EYE Sensor
Motion
Checking order to check remote control
Checking order
1. Check IR cable condition between IR & Main board.
2. Check the Main standby 3.5V on the terminal.
3. AS checking the IR LED light, the power is ON condition, an Analog Tester needle
should move slowly, otherwise, it's defective.
Error
C. Audio error_No audio/Normal video
Voltage and speaker checking method
Remote control operation checking method
when there is no audio
IR
Eye
LED
Voice
Recognition
MIC
D. Function error
②
A13
Established
Established
date
date
Revised
Revised
date
date
Pin
1
2
3
4
5
6
7
8
9
WIFI_SUSPEND/RESUME
10
11
12
13
14
15
16
③
17
18
19
20
21
22
23
24
Copyright © 2023 LG Electronics Inc. All rights reserved.
Only for training and service purposes.
A21
A13
Pin name
+3.5V_WIFI
GND
COMBO_RESET
BT_WAKEUP_HOST
WOL/WIFI_POWER_ON
GND
+3.5V_WIFI
WIFI_DP
WIFI_DM
GND
+3.5V_WIFI
No Connection
GND
LED_R
GND
IR
+3.5V_ST
GND
KEY2
EYE_SCL
WOV_PDM0_DATAIN
EYE_SDA
WOV_PDM_CLKOUT
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