LG 55UM7450PVA Service Manual page 72

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 22.
Error
D. Function error
Remote control operation checking method
Established
Revised
②
A23
date
date
Pin
1
2
③
3
4
5
6
7 WIFI_Suspend/Resume
8
9
10 BT_WAKEUP_HOST
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
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A23
Pin name
VCC
USB_DM
USB_DP
GND
WOL/WIFI_ON
VCC
GND
Combo_Reset
GND
VCC
EYE_SDA
EYE_SCL
GND
IR
LED_R
GND
VCC
KEY2
KEY1
GND