LG 75SJ857A Service Manual page 58

Standard Repair Process Detail Technical Manual
symptom
Content
① Wifi & BT Front
Wifi & BT Rear
Checking order to check motion remote/wifi
Checking order
1.Check BT/Wifi cable condition between BT/Wifi assy & Main board.
2.Check the 3.5V on the terminal 24
Error
D. Function error
Remote control operation checking method
Established
②
A23/A24
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
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Only for training and service purposes.
A23/A24
Pin name
LED_R
GND
IR
+3.5V_ST
GND
GND
EYE_SCL
KEY2
EYE_SDA
KEY1
GND
GND
GND
Device
Wakeup Host
Power on
GND
+3.5_Wifi
Wifi DP
Combo Reset
Wifi DM
GND
+3.5_Wifi