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