[TechAssist] Re: Still unsolved mystory:


Sounds like there is no E/W parabolic wave form from the Jungle IC. Are you
getting the necessary E/W drive signal? It should be about 1.5 volts PP at 16.6
milliseconds.

Dennis

"G.N.Arrivas" wrote:

> Pincushion Distortion: KV32XBR55
> check for open R537 feedback loop from Q505 to IC531
>
> Since you have replace most parts that usually fails on the A board. Check
> the feed back loop above.
>
> G.N.Arrivas, CET, Pittsburg, CA
> Tel/Fax: (925) 432-2057
> Arrivas Enterprises
> http://www.arrivasenterprises.com
>
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> ----- Original Message -----
> From: <tvdoctors@xxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, November 13, 2001 10:41 AM
> Subject: [TechAssist] Still unsolved mystory:
>
> > SONY  KV32XBR55:         Replaced Q505(shorted), R571(open),  IC531,
> L501(recommended replaced), and checked and resoldered D512(Checked Ok). No
> schematic. Still has bowed sides. Pincushion and Horiz.Size in service menu
> wont adjust (numbers change), all other adjustments work.  If I jump across
> L501, I get almost full scan but I can still see that pincushion is out of
> alignment.  Any thoughts to getting this set out of here would be greatly
> appreciated, Thanks, Neil
> >
> >
> >
> > TV Doctors    108 W. Main St. Monroe,Wa. 98272    360-794-6469
> >
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