Making
Revision
9/10
PDP TV
Symptom
D. General Function Problem
Y
N
Repair Process
9
1. Remote controller (R/C) operating error
Move
Power problem
Section
2. Local KEY operating error
Check R/C itself
Operation
Normal
operating?
Normal
operating?
Y
Close
Replace R/C
If R/C operate,
Explain the customer
cause is interference
from light in room.
Check R/C Operating
When turn off light
in room
Check & Replace
Battery of R/C
Check & Repair
Cable connection
Connector solder
Normal
operating?
Check B+ 5V
On Main B/D
☞
A26
Normal
Voltage?
Close
N
N
Check 5V on Power B/D
Replace Power B/D or
Replace Main B/D
(Power B/D don’t have problem)
☞
A12
Check IR
Output signal
Normal
Signal?
N
Y
Repair/Replace
IR B/D
N
☞
A26
Replace
Main B/D
Y
Y
N
Check local
key
Operation
Normal
operating?
Check & Repair
Cable connection
Connector solder
☞
A26
☞
A27
Check Key
Output signal
Y
Normal
operating?
Close
N
Normal
Signal?
Repair/Replace
Local Key B/D
N
Replace
Main B/D
Y
☞
A27
Remote control & Local Key & RF emitter checking
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©
2011 LG Electronics Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
Summary of Contents for 42PT250
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