Function Error - LG 43UQ9000PSD Service Manual

Table of Contents

Advertisement

Standard Repair Process
Error
symptom
1. Remote control(R/C) operating error
Check R/C itself
Normal
operating?
Operation
N
Check R/C Operating
Check & Replace
When turn off light
Battery of R/C
in room
If R/C operate,
Explain the customer
cause is interference
from light in room.
D. Function error
Remote control & Local switch checking
☞A22
Check & Repair
Y
Cable connection
Connector solder
Y
Normal
Close
operating?
N
Replace R/C
☞A22
N
Normal
Check B+3.5V
operating?
On Main B/D
Y
☞A18
Check 3.5v on Power B/D
Close
(Power B/D don't have problem)
11
Established
date
Revised date
☞A23
Y
Normal
Check IR
Voltage?
Output signal
N
Replace Power B/D or
Replace Main B/D
Copyright © 2022 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Replace
Main B/D
Y
Normal
Signal?
N
Repair/Replace
IR B/D

Advertisement

Table of Contents
loading

This manual is also suitable for:

43uq9000psd.aaufljd

Table of Contents