Question about Hitachi 51SWX20B 51" Rear Projection Television

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Sound but no pic

We can get the sound to come on only a scratchy sound but not a picture of any type. my center board has 3 green lights and 1 red one . is this norm or is that telling me were the problem is?

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Re: sound but no pic

This is a projection style TV with a removable light box which makes it easier to service. You could have a defective flyback (high voltage) transformer, or a leaky zener diode in the voltage regulation circuits as well. Depending on how old the set is and how the picture quality was before going out, will dictate the feasability of getting it repaired. My guess would be over $300 and possibly close to $500 if the flyback needs replacing.

Posted on Jan 27, 2007

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Re: sound but no pic

Does the projection lamp turn on, look in the back it should be visible. If not I would replace this and maybe the ballast first. If this still doesnt resolve the issue then the whole Optical engine might need replacement.

Posted on Jan 26, 2007

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