
Checking order
1. Check IR cable condition between IR & Main board.(Check picture number
①
and
②
.)
2. Check the standby 3.5V on the terminal (
③
).
3. AS checking the Pre-Amp(IR LED light), the power is in ON condition, an Analog
Tester needle should move slowly, otherwise, it’s defective.
Standard Repair Process Detail Technical Manual
Remote control operation checking method
D. Function error
A14
Established
date
Revised
date
Error
symptom
Content
Checking order to check remote control
②
③
A14
①
IR & EYE Sensor
IR
Eye
LED
Pin
Pin name
1
+3.5V_WIFI
2
WIFI_DM
3
WIFI_DP
4
GND
5
WOL/WIFI_PWR_ON
6
+3.5V_WIFI
7
RESET
8
GND
9
BT_WAKE_UP_DEVICE
10
BT_WAKE_UP_HOST
11
GND
12
No Connection
13
No Connection
14
No Connection
15
No Connection
16
EYE_SDA
17
EYE_SCL
18
GND
19
IR
20
LED_R
21
GND
22
3.5V
23
KEY2
24
KEY1
25
GND
Copyright © 2020 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Содержание 65NANO863NA
Страница 73: ......