LG 42PJ260R Service Manual page 28

Repair Process
PDP TV
Symptom
※ To check Power B/D Protection
Instant
Turn on after pull out connector
Turn off
Turn off
Under watching
B. Power Problem
Turn off (Instant, under watching)
between Power B/D & Y-Sus
N
Check
"Off Timer"
Power Off History
Set?
Y
"Off timer"
Function off
Making
Revision
1. Check Y-Sus/ Z-Sus Board
Y
Power LED
(especially Short or Open)
Green?
2. Replace defective B/D
N
Check Power B/D
Replace Power B/D
RCU Off
KEY Off
2HOUR Off
NO Signal Off
Don't appear
Power Off History
7
This is not problem
Normal operation
Move
No Power problem
Section
ⓒ LG Electronics. Inc.2009