LG 32LH500D - Function error - Remote control & Local switch checking

Standard Repair Process
Check R/C itself
Operation
Normal
Y
Operating
N
Replace
Main B/D
Check
+3.3V_standby
for IR
Sensor
Check+3.3V_standby on main
board replace main board or
change IR SERSOR
Repair/Replace
IR B/D
Check & Repair
Cable connection
Connector solder
Normal
N
Operating
Y
End
LED TV
Error
symptom
Function error
Established
date
2016.03.07
Remote control & Local switch checking
Revised date
10/12
1. Remote control(R/C) operating error
A9
A2
Normal
Y
Voltage
N
A9
Check IR
Output signal
Y
Normal
Signal
N
Check & Replace
Baterry of R/C
Replace R/C
Normal
Y
Operating
End
N
Check R/C Operating
When turn off light
in room
※
CAUTION:
If R/C operate,
Explain the customer
cause is interference
from light in room.