Zenith R56W28 56" Rear Projection Television Logo

Related Topics:

Question about Zenith R56W28 56" Rear Projection Television

1 Answer

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

Posted by Steve Brown on

  • Glenn Wilkie
    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!

×

Ad

1 Answer

Anonymous

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 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

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

The picture does not seem as bright as it was

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.
0helpful
1answer

Zenith IQZ36Z46D ???

start from testing board connections and getting the service manual, you will find a troubleshooting procedure in there
0helpful
1answer

Toshiba 27A45 picture and colors began to get darker and darker until whole screen is black. Sound still good. After a minute or two the picture returns fast.

Sounds like horizonal output transistor could be over heating. There could be other problems. But I would start there. You can find the part number on the schematic inside the set. If you change it yourself don't forget to use the included insulater. Part should cost between 15 & 20 dollars. You will need make & model # of set at electronic parts store.
Diagrahm inside set will show you location of transistor
0helpful
1answer

BLACK SCREEN,JUST SOUND HELP!!!!!!!!!!!!!!!!

a lot of those get a bad Y board or panel driver. sometimes both.
1helpful
1answer

Picture goes out - but has sound

i have had this problem on one of my tv s all i did was remove the back of the tv and re-solder all the joints around the tuner (thats where the arieal goes) they go with time because the joints there get so hot . hope this helps
puggy
1helpful
1answer

Zenith System 3 Model # SR2571DT

if you know how to solder , then resolder your tv ,maybe your tv had a lose connection.
0helpful
1answer

Bowing in the middle like an hour glass

about the zenith it seems you have the flyback transformer malfunctioning - try to change it - delfo
1helpful
3answers

Picture out

call zenith and make it there problem
0helpful
1answer

No Picture

Rarely picture tube also shows the same symptom. High pitch sound is due to through deflection area LOT power supply is loaded. Compulsary horizontal output transister short. From your statement i think Lot puncture takes place. Change LOT and horizontal output transister and check tv is now working.
Not finding what you are looking for?

83 views

Ask a Question

Usually answered in minutes!

Top Zenith Televison & Video Experts

The Knight
The Knight

Level 3 Expert

76835 Answers

 Francisco Mauricio...
Francisco Mauricio...

Level 3 Expert

1551 Answers

 Grubhead
Grubhead

Level 3 Expert

5720 Answers

Are you a Zenith Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...