Question about Hitachi 50UX57B 50" Rear Projection Television

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Blue color spot in middle of screen - Hitachi 50UX57B 50" Rear Projection Television

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Your optical engine is bad and will need replaced. I have a tip at http://www.fixya.com/support/r4251975-replace_dlp_light_engine which explains the process and where to get the parts.

Thanks for using FixYa and for the generous rating.

hardrocko

Posted on Aug 02, 2010

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1 Answer

Having a big yellow spot background in the middle of the picture.


Hi , it seems you are experimenting a light engine problem.Here's how your tv works: http://www.youtube.com/watch?v=ZLLHnQ4y-wo Basically there's 3 LCD chips that create the colors and image by blending together.When these chips start to melt you will get those blue spots, pixilation even vertical lines.You will need to replace the light engine. Have a blessed one!

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Bad Light engine Visit Encompass Parts for price or call1-800-638-3328 and UED 1-800-648-6657 also you can find them sometimes on E-Bay

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Hitatchi 52" rear projection TV has blue spot in middle of screen


Hello :
I suggest u retrace you the steps u took to replace your lamp make sure no foriegn objects got on the prism where the light shines throung the optics engine, if you remove the lamp compartment througly. If you had a perfect picture prior to replacing the lamp, then retracing your steps you might find something that does not belone. One final note: Did you purchase the right lamp 120watts anything higher than this wattage could damage your optics engine. I suggest never vacuuming the compartment because particals fly around from the suction and could get on the glass of the color wheel asembly.

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Welcome to LCD 101, the blue device is dying in the projector. Replace product with dlp brand and it will last a lifetime. good luck

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the lcd panel for the blue is bad normally you would have to replace the engine but i know a place where you can get it rebuilted for a price cheaper than the engine go to
N-home tvservice.com for some answers

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It sounds like you have a bad Blue Polarizer in the light path. I'm sorry but that is something you will have to contact a service center for. It's not something you'll be able to do yourself, I'm sorry, but that's the best advice I can give you.

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1 Answer

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Light Engine is bad, Hitachi might replace it for free if you had a repairman diagnois the problem
This TV type is junk

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1 Answer

No blue screen


what you are describing is a degaussing problem. It normally occurs if some Magnetic source has been brought close to your TV. Perhaps you have shifted your TV from part of the room to another? Or to another room? Did you or someone place a magnetic source (Speakers, Tape recorder, Walkie talkie, some toy of your children, etc near or on top of the TV? Just remove it. And wait for a few days. The problem will get automatically cleared up, as the TV set's Auto Degaussing circuits will clear the color patches.

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