Question about Hitachi 60V710 60" Rear Projection HDTV

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My tv has a big yellow spot in the middle, even after changing bulbs

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You have a bad light engine.

Posted on Sep 10, 2009

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Posted on Jan 02, 2017

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1 Answer

I have a 52" LCD


Can you still see the spot when the TV is off? In any event, the screen may have something on it or the mirror that reflects the image from the projector where the bulb is. Make sure the projector bulbs are clean. Good luck, thanks for using FixYa.

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My View sonic LCD Projector has a large Yellow discolored spot in the middle of the screen when using it with my computer. Our AV person changed the bulb thinking that was the problem and then the whole...


not sure which model you have but sounds like the blue polarizer has overheated over time. when you put the new lamp in I would think that the extra light you now have is highlighting the problem more plainly.
If this is the case then a new polarizer would be needed

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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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My 3m s20 projector has a big yellow spot in the middle of the screen even without a video signal. changing lamps did not help.


the polarizer on the blue lcd panel is fried due to excessive dust and heat. you may have to replace the whole optical engine.

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you most likely have a bad light engine.

Aug 20, 2009 | Televison & Video

1 Answer

Big yellow spot in the middle of the screen


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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Possible dust in light engine? What ever you do, don't blow it out with the set on or hot. This easily equals instant death to bulb. 

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Color Fading on Zenith E44W46LCD


you neeed to change the lamp. the access is located on the right side of the television. you can buy the lamp for about $125 from discount-merchant.com

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