LG 65SK9000PUA Service Manual page 72

Standard Repair Process Detail Technical Manual Standard Repair Process Detail Technical Manual
Error symptom
symptom
TV
Content
Content
①
IR & EYE Sensor
LED
IR
Checking order to check remote control
Checking order
1, 2. Check IR cable condition between IR & Main board.
3. Check the st-by 3.5V on the terminal 4
Error
D. Function error
C. Audio error_No audio/Normal video
Voltage and speaker checking method
Remote control operation checking method
when there is no audio
Eye
③
②
A14
Established
date
Revised
date
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Copyright © 2018 LG Electronics Inc. All rights reserved.
Only for training and service purposes.
A21 A14
Pin name
+3.5V_WIFI
WIFI_DM
WIFI_DP
GND
WOL/WIFI_PWR_ON
+3.5V_WIFI
RESET
GND
BT_WAKE_UP_DEVICE
BT_WAKE_UP_HOST
GND
No Connection
No Connection
No Connection
No Connection
EYE_SDA
EYE_SCL
GND
IR
LED_R
GND
3.5V
KEY2
KEY1
GND