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 16 pin (
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 controller operation checking method
D. Function error
A22
Established
date
Revised
date
Error
symptom
Content
LCD TV
A22
②
③
2014.02.07
1
GND
2
+3.5V WOL
3
BT_RESET
4
USB_DM
5
NC
6
USB_DP
7
WOL
8
GND
9
SDA
10 GND
11 SCL
12 KEY1
13 GND
14 KEY2
15 IR
16
+3.5V_ST
17
LED_R
18
GND
Checking order to check remote controller
①
Front
Back
Wifi/ BT Combo
<XXUB83/820X-XX>