General Function Problem; Remote Control - LG 42PJ350R Service Manual

Repair Process
PDP TV
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 Baterry of R/C
in room
If R/C operate,
Normal
Explain the customer operating?
cause is interference
from light in room.
Replace R/C
D. General Function Problem

Remote control

Check & Repair
Y Normal
Cable connection
operating?
Connector solder
Close
Y
Close
N
Making
Revision
N
Check B+ 5V Normal
Voltage?
On Main B/D
Y
Check 5v on Power B/D
Replace Power B/D or
Replace Main B/D
(Power B/D don't have problem)
9
Y
Check IR Normal
Signal?
Output signal
N
Repair/Replace
IR B/D
ⓒ LG Electronics. Inc.2009
Replace
Main B/D
Y
N