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Zenith RA56M91D Picture Goes Wobbly

March 31 2007 at 7:29 PM
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Man  (no login)

I had gotten my hands on this RA56M91D Zenith Projection TV and it would run fine for a few minutes, then the picture would get all wonky, curving in at the sides and the colors go way out of alignment. (They weren't so well aligned to start with)... I read somewhere else that the problem might be a "convergence output chip", but I don't know enough about the electronics to say one way or another. Anyone out there know what this problem is and what is a solution for it (aside from trashing the TV)? Thanks!

 
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Anonymous
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Re: Zenith RA56M91D Picture Goes Wobbly

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April 1 2007, 4:49 AM 

GET A SMALL FAN, & BLOW AIR ONTO THE CONVERGEANCE BOARD TO HELP COOL IT. THEN SEE IF IT STILL ACTS UP, OR IF IT OPERATES LONGER THAN BEFORE.

 
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Hect7369
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Re: Zenith RA56M91D Picture Goes Wobbly

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April 4 2007, 6:33 PM 

A leaky HB splitter is the problem.

 
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Man
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Re: Zenith RA56M91D Picture Goes Wobbly

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April 6 2007, 4:11 AM 

Mt stepfather is pretty good with electronics, so I may ask him to perform the repairs. Can you tell me how to replace the HB splitter? Thanks!

 
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(Login Hector7369)

Re: Zenith RA56M91D Picture Goes Wobbly

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April 6 2007, 8:26 AM 

sorry,it's HV splitter(Bleeder) block..when poor focus in seen on picture(after a mins or so)part#

A-17196-12

Could you post a Pic??

 
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Anonymous
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Re: Zenith RA56M91D Picture Goes Wobbly

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April 6 2007, 12:37 PM 

Replace R3243 (110K, 1/2w) on 9-1674-xx module. HV splitters are NLA from zenith, replacements are cheap chinese crap that dont work. Your splitter is probably ok, they dont cause conv. problems.

 
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Hect7369
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Re: Zenith RA56M91D Picture Goes Wobbly

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April 7 2007, 8:40 AM 

I had gotten my hands on this RA56M91D Zenith Projection TV and it would run fine for a few minutes, then the picture would get all wonky, curving in at the sides and the colors go way out of alignment.

When resistor R3243 fails,is when is open, causing the problem all the times..not when set runs fine for minutes..then the problem appears.

 
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Man
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Re: Zenith RA56M91D Picture Goes Wobbly

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April 8 2007, 6:55 AM 

Well, I plugged it in again and this time the TV goes all curvy and out of focus right from the start. So, it is now doing this 'all the time'. How does that affect the diagnosis? Any chance there is a loose or bad connection? Also, did you want a pic of the TV's exterior or the interior (to see the electronics)? I appreciate all the responses so far!

 
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Man
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Re: Zenith RA56M91D Picture Goes Wobbly

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April 9 2007, 2:31 PM 

You guys are a bunch of worthless fuktards! Thanks for all the "help" I think I could get better advice from the janitor at work!

Don't bother spouting any more advice about this set, I'll figure it out WITHOUT your dumbasses' help, thank you very much!!

 
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Frank
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Re: Zenith RA56M91D Picture Goes Wobbly

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April 9 2007, 2:41 PM 

You see what happens when you try to help people that understand as much as a shoe maker in electronics world.

 
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Anonymous
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Re: Zenith RA56M91D Picture Goes Wobbly

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April 10 2007, 4:21 AM 

I have to wonder if the last responce from the MAN, was really from the MAN. He had thanked us all before, but now all of a sudden he thinks were idiots? I don't think he really said that, I think someone else is trying to frame him.

 
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Man (the REAL one)
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Re: Zenith RA56M91D Picture Goes Wobbly

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April 10 2007, 9:28 AM 

You're correct. Whoever that was, was definitely NOT me! I would not treat people who are trying to help me that way. I guess it was just someone with nothing better to do.

 
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(Login Hector7369)

Re: Zenith RA56M91D Picture Goes Wobbly

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April 10 2007, 9:05 PM 

Man(the real one)..Post a pic when problem is shown...Please...
Thanks you for your reply explaining us..(I was disappointed.)

 
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Man
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Here Is Pic of Picture

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April 20 2007, 4:20 PM 

Here is a pic of the TV's picture, it shows the problem quite well, as the edges of the picture are bowed in on all sides and the colors are misaligned. Thanks for any advice to fix this problem!



 
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Anonymous
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Re: Here Is Pic of Picture

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April 21 2007, 3:30 AM 

it is definitly a convergeance problem

 
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(Login Hector7369)

Re: Here Is Pic of Picture

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April 21 2007, 8:49 AM 

a previous post our friend anonymous,asked to replace a resistor(R3243)...go and replace it..

 
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Man
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Re: Here Is Pic of Picture

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April 21 2007, 12:06 PM 

>Replace R3243 (110K, 1/2w) on 9-1674-xx module.

That actually sounds simple, as long as one knows where the module is located... Will I need the schematic, or can I tell my stepfather that snippet of information and reasonably expect him to find it easily?

 
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Hect7369
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Re: Here Is Pic of Picture

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April 22 2007, 2:25 PM 

Look in the pic!

 
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Hect7369
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Re: Here Is Pic of Picture

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April 22 2007, 2:29 PM 


 
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Man
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Re: Here Is Pic of Picture

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April 25 2007, 5:04 PM 

I'm sorry, but the link you provided just brings me back to this page and no picture. May I ask what it was a picture of? Thanks!

 
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Hect7369
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Re: Here Is Pic of Picture

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April 26 2007, 8:27 AM 

Sorry..

I'll send it to you,What's your email,Man?

 
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Man
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Re: Here Is Pic of Picture

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April 27 2007, 5:36 PM 

Here you go: zenithtelevision50@yahoo.com

Thanks!

 
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