Question about Sony Grand WEGA KDF-42WE655 42" Rear Projection HDTV

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Yellow Patch on screen - Sony Grand WEGA KDF-42WE655 42" Rear Projection HDTV

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Yhumble,

Sounds like you have a bad optical engine. Most of the KDFs suffer this problem. For a while Sony would not admit to the problem, then they extended the warranties to cover it and now I know people who have gotten great deals on new units from Sony if you call their number and complain. I have a tip at http://www.fixya.com/support/r7851924-sony_projector_yellow_or_blue_dots which gives more information as well as some solutions.

Thanks for using FixYa and for the great rating.

hardrocko

Posted on Mar 21, 2011

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Yellow patch error


Not too sure what you mean about a yellow patch error.
Does this 'Yellow patch" have a splurge effect or is it more regular?
The only thing I can suggest is try several purges of the head.
The other possibility is, some torn media stuck deep inside the print unit further investigation would be necessary.
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Go to main menu, turn color all the way off to see if you have perfect black and white. If you still have yellow, it's in the focus block or convergence circuit, If it's perfect black and white then it's going to be in yc chroma luminence circuit.

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1 Answer

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1 Answer

Screen patch


Sometimes lcds will turn a yellow/brown/redish colour if they overheat. normally this will not cause long term damage to the screen but it is not good for it, try letting the monitor cool then using commpressed air to get rid of dust or attach a small fan to see if it helps. This may not fix the problem but should confirm if thats what it is.

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