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lg 42px5d dim washed out picture

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mzone:
i have a lg 42px5d set suffers from a very dim washed out picture.

After further investigation, I have determined that unplugging the X-Sustain Main board did not change the picture quality. This leads me to believe that the X-Sustain Main board may be a fault.

My question is, would I also need to replace the Y-Sustain Main board or the Main Logic board? Unplugging the Y-Sustain board gives me a totally black picture, which leads me to believe that the Y-Sustain board is working, and that the X-Sustain board is the culprit.

My next issue, is it the X-Sustain board that is dead, or the Main Logic board is not feeding a signal to the X-Sustain board.

What would cause a very dark picture on a plasma screen?.


thankyou

waxhead:
if i remember wrightly.

it would be the xsus at fault but it best to replace both x and y together
is there a blown fuse on any of the boards?
bloddy LG's

Turnip:
Hi,

Had something similar where Z-Sus fuses had blown. Replaced those and sparks from under large heatsink ensued. Replaced Z-sus board - OK.

Must admit that athough Plasma is a problem, there's more LG at the local tips than other makes, but there again, they were used in many cheapy sets - Chris

roxyrohit:
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