50PT350-ZD, 50PT351-ZC, 50PT351A-ZC, 50PT351K-ZC, 50PT351N-ZC, 50PT352-ZB, 50PT353-ZA, 50PT353A-ZA, 50PT353K-ZA, 50PT353N-ZA (CHASSIS:PD11K) - LG TV Service Manual (repair manual). Page 27

Read LG 50PT350-ZD / 50PT351-ZC / 50PT351A-ZC / 50PT351K-ZC / 50PT351N-ZC / 50PT352-ZB / 50PT353-ZA / 50PT353A-ZA / 50PT353K-ZA / 50PT353N-ZA (CHASSIS:PD11K) 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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