Read LG 42PW450-ZA / 42PW450A-ZA / 42PW450N-ZA / 42PW450T-ZA / 42PW451-ZD / 42PW451A-ZD (CHASSIS:PD11A) Service Manual online
ⓒ LG Electronics. Inc.2010
Making
전자 - 6-2
Revision
2/10
PDP TV
Symptom
A. Picture Problem
No Picture/No Sound
Repair Process
Check Module pattern
by using “TILT” key
on SVC R/C
Normal
☞A1
N
Check
Sound
Sound
OK
Y
☞A2
N
Move
No Picture/ Sound Ok
Section
Close
Y
Check
LVDS Cable
Picture
OK
Y
N
2
Y
Normal
Sound?
N
Check
“Speaker ON/Off” setting
in OSD Menu
Close
Y
Normal
Sound?
N
Close
Check Speaker
jack connection
& Speaker Cable open
Y
Normal
voltage?
N
Check 17V
(Audio IC B+)
on Power B/D
Check Power B/D
Replace Power B/D
Check Audio IC Short
Replace Main B/D
SVC
Bulletin?
Apply
SVC Bulletin
(S/W Upgrade etc)
N
Normal
Sound?
N
Y
Close
Y
Check
Video
☞A6
2010. 11. 16
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