[TechAssist] Re: Zenith PVR4660VK Pix is bowed equally on top, bottom, and sides, and convergence is bad.

  • From: Jorge Camboni <geo@xxxxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Tue, 20 Apr 2004 23:23:37 -0500

Hi LeRoy;
1ST, measure the + and - supplies to the convergence amplifiers..
if everything is ok, and the low value resistors (2.2 or so) are ok as well
maybe you have a bad resistor at the HOT's collector (1/2W 110 - 120k followed
by a 82k, also suspicious, first half-hidden underneath a several watts R) 
That is a
very well known problem with those Zeniths, from them comes some 16v;
if not present,  they cause pincushion, convergence
failure and sometimes loss of video.
HTR
Jorge
Jorge Camboni, GY Electronics, Richardson, TX

At 09:46 p.m. 20/04/2004 -0600, you wrote:
>Hi members,
>I repaired my focus problems by replacing the Focus block. I still have bad
>convergence, and the pix is bowed equally on top, bottom, and both sides.
>Does anybody have a fix listed for this problem ?
>I don't want to buy convergence amps, cause I'm pretty sure it won't fix the
>problem.
>I'll buy some if you guys think I need them.
>Can't afford to waste money buying parts that won't help. So far,..so
>good,...but,..I need a quck fix,...bad !
>
>Any help is appreciated,
>LLW
>
>LeRoy Westlund
>Westlund TV & Electronics
>97 North Main                                "Where there's a will,...
>Centerfield, UT 84622-0087           There's always a way."
>Ph./Fax  435-528-3822
>mailto:LLW@xxxxxxxxxx
>
>
>
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Jorge Camboni, GY Electronics, Richardson, TX 


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