Question about Sony KDS-60A2000 60" HDTV

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My kds60a2000 developed yellow tint recently. i know the light engine is bad. i want to fix it myself. Does the light engine have the blue polarizer as the kdf model?

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Evergreen_2k,

Before you waste any money on trying to fix your unit you should read my tip at http://www.fixya.com/support/r7851924-sony_projector_yellow_or_blue_dots as this will help you get a new tv for free or next to free.

Thanks for using FixYa and for the great rating.

hardrocko

Posted on Apr 07, 2011

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Sounds like the polarizing film is burnt on one of the three colored lenses that are located next to the projector itself. In order to fix this this it is necessary to remove the ballast and projector units, then disassemble the projector housing to expose the lenses. there are green, blue and vermillion (reddish) lenses. the vermillion lense is the one that causes the yellow tint after it has been damaged.
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Yellow tint


Hello. Here's the visual key to remember about projectors--LCD panels show their colors like this: RED lcd panel displays cyan onscreen(baby blue); GREEN lcd displays purple; BLUE lcd displays yellow. ( You now know where the displayed dust is!) The problem is most likely a burned blue lcd or polarizer filter in front of the blue lcd panel. This occurs when the dust filter isn't cleaned regularly or properly and heat builds up--yes, enough to "cook" the lcd panel or actually cause a burn to develop on the polarizer. The polarizer is just like a lens in a pair of good sunglasses. It is a small, extremely thin, pane of glass with polarizer material glued onto one side. When burned, it causes a "shadow" effect--that enhances the display of that particular color--in this case, yellow.--Hope I was of assistance!---Rick

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1 Answer

My zenith lcd tv has lost its blue tint. most


the light polarizer on the blue lcd panel is fried due to excesive dust and heat, and therefore need to be replaced. unfortunately, zenith may not sell individual parts of the optical engine, so you'll have to replace the whole optical engine.

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There are polarized lenses in the light engine. When the blue one goes bad it gives the tv a yellow tint to it. You need to get that replaced.

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Clean any external dust filters or air openings in the unit.If you don't want to remove the filters, you can simply use a vacuum cleaner hose to suction away the dust from the filter element--same effect anyway. The unit probably does indeed need a thorough cleaning.
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