[TechAssist] Re: Toshiba PTV - 50HX70 Red convergence flickers in and out.
- From: gulftech@xxxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 20 Jan 2006 13:36:27 -0600
LeRoy,
If you bought your IC's from a reliable source, they should be OK. Try
cold spray (or heat) on the IC's to see if the pix changes. Check for
loose connections or bad solder.
Good luck.
Kenneth Smith
Gulf Technical Services
3034 Gulf Breeze Parkway
Gulf Breeze, FL 32563
850-934-8324 (Voice) 850-932-0819 (Fax)
On Fri, 20 Jan 2006 12:09:41 -0700 "LeRoy L. Westlund"
<llw@xxxxxxxxxxxxxxx> writes:
> H i members,
> This Toshiba PTV had a typical bad convergence problem, so I
> replaced the 2
> STK392-110 output ICs. I checked all the assoiciated resistors, and
> they
> were OK.
>
> After re-installing the chassis, The Red dynamic convergence is
> flickering
> in and out, at a rapid rate. The center cross hairs adjust OK on the
> Blue
> and Red both. The problem only effects the Red around the out side
> only.
>
> I think the Hyper module is OK on this set, cause it don't have the
> surface
> mounted caps in it, that normally go bad. Also, the DCU module seems
> to be
> working OK, and all connections look good.
>
> Should I try changing the output ICs a second time, since I used
> Generics,
> from a reliable source ?
> Maybe I got a hold of a bad one.
>
> Any suggestions would be appreciated.
>
> LeRoy
> Westlund TV & Electronics
> 97 North Main Street
> Centerfield, Utah 84622-0087
> Phone/Fax: 435-528-3822
> Mailto:LLW@xxxxxxxxxx
>
> " Some days are Diamonds,...somedays are " Stones ".
>
>
>
> --
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>
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