[TechAssist] Re: Zenith PV5263RK(Need help)

  • From: "Shoreline Electronics" <jstielau@xxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Mon, 3 May 2004 11:06:24 -0400

Looks like you may have missed a connection on the 9-1302 baord

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Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
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ZENITH   9-1302

Loss Of Convergence, Bowed In On Sides, Picture Pulsates

Marshfield Tv

Check Pin 8 Of Plug 3c7 For 26 Volts.  If Missing, Check Solder On L3408,
26v Supply From Tx3402 Pin 8.  Whole Module Eat Up With Bad Solder Joints,
But That Was The One Causing This Particular Problem.

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ZENITH   9-1302

Convergence Out,  Picture Bowed And Pulsating

Gary D. Bombard Action Tv Systems

Soldered Connections All Over Board And Especially Around Connectors Ch21,
Ch32, Ch33.  Also Soldered Main And Convergence Power Boards.

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Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
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ZENITH   9-1302-6

Picture Pulls In On The Sides To A Hour Glass Shape

Doug - Vision Video Labs, Inc.

Resolder 20 Plus Bad Connections On Board. Many Broke Loose.

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==========================
Jeff Stielau
Shoreline Electronics Repair
344 East Main Street
Clinton,CT 06413
860-399-1861
860-664-3535 (fax)
jstielau@xxxxxxxx
========================
"If you push something hard enough it will fall over."
Fudd's First Law of Opposition - Sir Sidney Fudd


----- Original Message ----- 
From: "javiles6" <javiles6@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, May 03, 2004 1:51 PM
Subject: [TechAssist] Zenith PV5263RK(Need help)


> Hello Techs
>
> I been working in this set for quite a while and now that i finally have
it to turn on, after a minute or so it goes into a hourglass form. Before
this problem the set had sound but no picture. Replace a shorted HOT but it
blew it instantly. So i replace the flyback, put in an original HOT change
about 10 caps in SMPS. Also a couple of diode, resolder both boards. At
first turn on set was fine but the convergence was out of wack, while
adjusting it the set started bowing in from the middle, if i turn it off and
back on it works fine again but then the problem comes back. Any ideas what
i have miss or anything else need to be replace. I have no schematic but i`m
just working with a little bit of experience on other zenith model i have
work on before. I was thinking a regulator problem but maybe one of you
techs out there have confront this problem and may give me an idea. Your
help like always is very appreciated.
>
> Thanks
>
>
> Jose
>
> Aviles Computer & TV Repairs
> 508 Bingaman st
> Reading, PA 19602
> tel # 610-478-1342
>
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