Question about Zenith R56W28 56" Rear Projection Television

NO PICTURE...BUT SOUND

Have a Zenith model #Z56296D8 that recently the picture started to get darker. Now the picture is black, but when I change channels I can hear the channels fine. (3) years ago I replaced the High Voltage Module, is this the culprit again?? The TV is in a heavy smoking environment, does this effect the module?? PLEASE HELP!!!! Thanks, Steve

Glenn Wilkie Mar 23, 2014

My Zenith R56W28 had gotten progressively darker to the point where you could barely watch it.I opened the top (projection) compartment on mine and blew it out with an air pump.Helped a little.Then I took the screws out of the left half of the back on the lower compartment where the electronics and power supplies are located.Stuck my air pump hose in and blew out all the dirt and dust.Checked the picture and it was as good as new!I love these TV's!First problem I've had with it in 15 years!Practically bullet proof!

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4 Answers

Your HV circuit is defective. Most likely horizontal output transistor is shorted and you may need to replace the flyback. You need to call an expert.

Posted on Jun 08, 2006

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This rear projection from the model number appears to be a RCA AND not the zenith listed in your question.

If RCA the lens for the tubes may be dusty or dirty--should be cleaned once a year.

Process is simple: unplug set and remove rear cover.

Locate the three large black lens at top of chassis and either with a lens cloth or a paper towel with glass cleaner sprayed on the towel clean them.

If they are dirty/dusty they will make picture look darker and duller than it once was---they are the light source for your picture.

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Diagrahm inside set will show you location of transistor

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The picture does not seem as bright as it was

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There is a shadow of red all across the top half of the tv. Perhaps something with color convergence?

Nov 26, 2009 | Zenith R56W28 56" Rear Projection...

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NO PICTURE...BUT SOUND

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R56W28 56" Rear Projection Television

The picture does not seem as bright as it was

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There is a shadow of red all across the top half of the tv. Perhaps something with color convergence?

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. R56W28 56" Rear Projection...

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Anonymous

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Not finding what you are looking for?

R56W28 56" Rear Projection Television

The picture does not seem as bright as it was

Open Questions:

There is a shadow of red all across the top half of the tv. Perhaps something with color convergence?

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