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I have a Zenith E44W 46" lcd projection TV. It is about 3 years old. The picture has become dull and very yellow/greenish. Changing the video settings (brightness, hue, color, etc...) has not fixed the problem.

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  • garyscheiner Jun 01, 2010

    Is there a lamp or other part that can be replaced?

  • garyscheiner Jun 01, 2010

    Yes... sounds like I will need to contact Zenith for support. Not something I can do on my own.

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Hi.

Greenish hue may be caused by one of the three RGB color channel missing (the red one), or by a defective light engine.

Check the video cables at the back, try connecting different devices using different inputs and cables.
If the problem is on all inputs and also when using internal tuner, then it is likely the light engine.
If picture is fine on internal tuner, then it is the terminal board hosting the connector.
If it is only with the tuner, then it is the tuner board.

If the problem is the light engine, then cost will be high (about $600).
Unless the fault is on inputs, testing and fixing the problem may be complicate. RGB signal must be tracked from terminal through controller board to optical group. The best thing to do in that case is contacting Zenith support and asking a quote on repair.

Here all parts for your set: E44W46LCD.

Posted on Jun 01, 2010

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Old problem on this model of tv: this is due to the heat generated by the lamp going through the optics.  In some sets it may be cleaned and/or polished back to normal, and in others the damage is too much, you will have to replace the whole engine.

Posted on Jun 01, 2010

  • Azrael SRL Jun 01, 2010

    As i said, most likely you will have to replace the entire optical unit, a very fiddly job for a professional. This part is only available thru authorized dealers/repair shops so you will gonna have to phone them.


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