Question about Akai PT5598HD 55" Rear Projection HDTV-Ready Television

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Akai PT5598 rear projector TV

My tv, which has always worked great, suddenly lost its picture (as if the tv had been turned off). We have sound, can change channels with the remote, but simply don't have a picture. Any suggestions on what may be the problem?

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Re: Akai PT5598 rear projector TV

Thanks for the response, Willtab. There are no unusual noises at all. I spoke with someone else with the same problem, and he determined that he had a bad zener diode on the power supply board which also took out a electrolytic capacitor in parallel with it, but replacing it didn't help and the new zener soon went bad. I checked the same components on my unit and no voltage on the 5.1V zerer. I'm guessing that if someone finds the root of this problem we will all be able to get our sets working again. It sure would be nice if Samsung would help.


Posted on Jul 25, 2008

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Re: Akai PT5598 rear projector TV

Usally when this occurs your looking at high voltage problem. flyback, horizontal, crt issues, do you hear any high voltage static or cracling when you turn it on or off

Posted on Mar 18, 2008

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Akai rear projection tv suddenly stopped working.

This set with Akai is actually made by Samsung (they own and use the Akai name).

If lamp light etc and you have heard a cracking sound it may be the color wheel.

You can remove the lamp and look where it faces--look and the wheel can be seen----is it shattered or missing plastic pieces?

The wheel commonly fails in this fashion and is turning at over 12,000 rpm. The set will detect if the wheel is stopped or moving too slow and just what you describe will happen.

Wheel is widely available and You Tube has video instructions for replacing them by model number.



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make sure it's not muted. you can also change from lift to right speakers. you may have burned up the audio driver amp.

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Is this a 3-gun projector style or an LCD?
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