[TechAssist] Re: Panasonic CTV Model # CT32G32\chasis ATPEDP282\Shorts ho...
- From: MDileo0000@xxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 6 May 2004 15:04:02 EDT
The ' A ' version requires lower drive current to get it to fully turn on. If
you scope the regulator you have in there now you will see that the
oscillation is choked and starves off. Hard to believe, but I have been there
already.
This also true of the Panasonic/Quasar sets that use STK730-020A. Got to have
the A or it will run too hot and fail.
Dominic DiLeo
Atlantic TV
Freeport, Maine
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In a message dated 5/6/04 2:15:27 PM Eastern Daylight Time,
birdie@xxxxxxxxxxxxx writes:
<< I used a STR-58041 plain,no A at the end.My local dist.said that it would
work
ok.Maybe thats my problem.I have checked just about everything in the
reg.ckt.
Wonder what the difference is between the non A and the one with it?Rated
higher?
Thanks
Mando
Birdie's TV & Electronics
Casa GRande, AZ
MDileo0000@xxxxxxx wrote:
> Mando,
>
> Did you replace IC801 with original? Must be STR58041A.
>
> Dominic DiLeo
> Atlantic TV
> Freeport, Maine
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> In a message dated 5/5/04 2:09:35 PM Eastern Daylight Time,
> birdie@xxxxxxxxxxxxx writes:
>
> << I had already replaced the reg. STR-58041 yesterday.I am going over the
> reg.ckt
> and will check Q801,802. Thanks
> Mando
> Birdie's TV & Electronics
> Casa Grande, AZ
>
> Willie Hunter wrote:
>
> > Check the Regulator also Q801,Q802 and C815.
> > Willie.
> > Hunter TV
> > Detroit,Mich.
> >
> > >From: armando guerra <birdie@xxxxxxxxxxxxx>
> > >Reply-To: techassist@xxxxxxxxxxxxx
> > >To: "techassist@xxxxxxxxxxxxx" <techassist@xxxxxxxxxxxxx>
> > >Subject: [TechAssist] Panasonic CTV Model # CT32G32\chasis
> ATPEDP282\Shorts
> > >hot is shorting
> > >Date: Tue, 04 May 2004 10:27:42 -0700
> > >
> > >I have this set that came in dead.Fuses ok.The hot was shorted.I
> > >replaced the hot (BU2508DF) and also D825 which was shorted also.I
don't
> > >have the manual but I used a nte 570 (avalanche diode).There was also a
> > >cap C820 that was bad.Resoldered the hdt and fired set up. High voltage
> > >comes up and as the pix was coming in,tv shuts dn and has a high
pitched
> > >sound.The hot and D825 are both shorted again.The flyback rings ok but
I
> > >guess it could still have an int shorted winding.I checked both R510
and
> > >R511 and they are within tolerance.Has anyone had this problem with
this
> > >model that can give me some tips or idea's? Would apreciate any help.
> > >Thanks
> > >Mando
> > >Birdie's TV & Electronics
> > >Casa Grande, AZ
> > > >>
> >>
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