LG 50PW450 Service Manual - Page 63

Half / partly display or abnormal display, Connections between panel and X B/D

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Repair Process-Reference data PDP TV A. Picture Problem Symptom (Half picture) X- B/D Checking method(50R1) Making Revision ▣ Half / partly display (or abnormal display) -. Check Va input voltage. (P121, P120, P220, P221, P320 : Power connector of the X board) Half -. Check cables between CTRL board and X board. -. Replace the X B/D. -. Check TCP connection after X B/D replacement. display (abnormal) Picture 1. abnormal ▣ Connections between panel and X B/D -. Right display (Picture 1.) ↔ Check/replace right X B/D -. Both ends display (Picture 2.) ↔ Check/replace center X B/D -. Left display (Picture 3.) ↔ Check/replace left X B/D Partly display (abnormal) abnormal 2010. 11. 16 Picture 2. 전자 - 6-2 A18 Picture 3. ※ Check connections (TCP - X board, CTRL board - X board) Va from CTRL Va from CTRL A18 Va from CTRL ⓒ LG Electronics. Inc.2010

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ⓒ
LG Electronics. Inc.2010
Making
전자
- 6-2
Revision
PDP TV
Symptom
A. Picture Problem
(Half picture) X- B/D Checking method(50R1)
Repair Process-Reference data
A18
A18
▣
Half / partly display (or abnormal display)
※
Check connections (TCP - X board, CTRL board - X board)
-. Check Va input voltage.
(P121, P120, P220, P221, P320 : Power connector of the X board)
-. Check cables between CTRL board and X board.
-. Replace the X B/D.
-. Check TCP connection after X B/D replacement.
▣
Connections between panel and X B/D
-. Right display (Picture 1.)
↔
Check/replace right
X B/D
-. Both ends display (Picture 2.)
↔
Check/replace center X B/D
-. Left display (Picture 3.)
↔
Check/replace left X B/D
Picture 1.
Picture 2.
Picture 3.
Half
display
(abnormal)
Partly
display
(abnormal)
abnormal
abnormal
Va
Va
Va
from CTRL
from CTRL
from CTRL
2010. 11. 16