Question about Hitachi 42V715 Rear Projection Television

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Hitachi 42v715 has a large round yellow spot in the center of the video on the screen How do I fix this?

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  • chambleebunc Feb 05, 2010

    Thank you Ill try and replace it

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  • 201 Answers

Hi,
The yellow spot is caused by a failure in your light engine (it is the projector part of your TV where the lamp plugs in.) There was an extended warranty but it has probably expired. You could contact Hitachi just to see, otherwise it would probably be cheaper just to replace it. Light engines can cost several hundred dollars plus a couple hundred more in labor.

Posted on Feb 05, 2010

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1 Answer

Yellow to green tent screen to hitachi tv 42v715


You have some reason to believe it will not?

Some history for you---several years ago Hitachi began along with others to have issues with the optical light engines.

With a mix of high heat from a lamp into the engine (it has a blue,green and red section inside---guess what? BLUE is the first place that gets the heat and is damaged----minus blue and you have red and green which equals YELLOW.

Several of their sets made about 6 years ago (research 50v500) had exact same issues and were settled in a class action lawsuit.

The issue can but does not always affect the entire screen.

The question really is: This set really worth the part and labor cost for the repair?

On that earlier model I replaced under warranty over 40 of the engines. Also Sony and others have had similar issues some of which were settled in court.

HOPE IT WORKS OUT FOR YOU.

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I have a hitachi 50vs69a with 2 yellow spots in the middle of the t.v when powerd on.....black when off. these spots almost resemble states...there is also blue splotches in the middle of these spots. any...


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Easy to confirm this by covering lens of tubes one at a time with set on and see which removes the blotches.

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I have a Hitachi model 50V69A and have large yellowish spots on screen. It is most noticeable when watching programs with light background, like hockey games..


I havw a simialr problem mine is a blue stripe toward the center of the screen. The problem is most likely from the blue lens on mine or the yellow on yours. I was able to adjust it out somewhat and I am still tweaking it by using a setting in the technical menu called stripe.

You can access the technical menu by pressing the fowllowing on your remote:

MENU +MENU+ 8 + SELECT

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it is actually a light engine problem, i have replaced probabily 50 of thease for that exact problem, it is a prity hard part to change yourself, and it costs about 400 dollars

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I have recently developed the same yellow spot problem on my Sony KDF-E50A10  50" LCD television...a large yellow circular hue that takes up the bottom center of the picture and is especially noticeable against a white background.  It has been diagnosed as the optical block (light engine) and without an extended warranty Sony refuses to assist with the repair cost.  Repair was estimated at $1,100 plus tax and travel fees to my home.  So you see, it is not only a Hitachi problem.  You would think they could build something that would last more than two years considering the initial cost of over two grand for the TV !

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