LG 32LH500B Service Manual page 29

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