[TechAssist] Re: Zenith PVY4661 GZ chassis PV-148/GZ
- From: "Larry E" <videotech@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 11 Feb 2006 16:23:50 -0500
Buck, have you replaced the infamous R3243 (usually 110K 1/2 watt) and
pulled one leg of R3244 (82K 1/2 watt)
and checked it ? I believe your model has these 2 resistors and 3243 is a
big failure problem regarding convergence,
it`s located under a 3 watt resistor BEHIND the HOT heatsink, a real pain to
find but it`s worth a check, you HAVE to pull one leg to check them and they
are in series with each other, hth, Larry E
Larry Eastman
American TV & Electronics
Crystal River, Fl. 34428
----- Original Message -----
From: "STERLING PASHER" <spasher@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, February 10, 2006 4:58 PM
Subject: [TechAssist] Zenith PVY4661 GZ chassis PV-148/GZ
> I have a Zenith GZ chassis with a convergence problem and wonder if you
> someone could give me some advice . There
> doesn't seem to be any control of the convergence at all. The center is
> off,
> red about 3/4 in and blue 1 in. The top and bottom are crossed so that
they
> form an x pattern. I have no movement when I try center convergence. The
> original problem was a bad focus divider Set lasted 2 months then conv.
> went
> out this way. I wiggled some plus on the boards and it came back, worked
> for
> awhile and now has gone bad again and won't came back.I've
> resoldered/checked the conv. boards. And when I got the schematic , I
> checked the voltages on conv.board and they seem OK. what I would like to
> check is clock, mute, data and conv-enable on 8C3 going to 3C8 on conv.
> board but I don't know what they should be? Has anybody run into this
> problem
> before or do you have any advice for me. Any help would be much
> appreciated.
>
>
> Buck Pasher
> Buck's TV
> Gander Newfoundland
> Canada
> 709-256-7738 (Fax & Phone)
>
>
>
>
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