LG 75SM9400PTA Service Manual page 79

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 1 pin
Error
D. Function error
Magic Remote/WiFi operation checking method
Established
date
Revised
date
②
A15
Pin Pin name
1 LED_R
2
3
4 +3.5V_ST
5
6
7 EYE_SCL
8
9 EYE_SDA
10
11 No Connection
12
13 +3.5V_WiFi
14
15 COMBO_RESET
16 BT_WAKEUP
17 WOL/WiFi_POWER_ON
③
18
19 +3.5V_WiFi
20 WiFi_DP
21 WiFi_SUSPEND/RESUME
22 WiFi_DM
23
24 +3,5V_WiFi
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Only for training and service purposes
A15
GND
IR
GND
GND
KEY2
KEY1
GND
GND
GND
GND