[TechAssist] Re: Panasonic CT27G31U Chassis AEDP272 regulator IC801 runs very hot
- From: gulftech@xxxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 25 Feb 2004 17:13:05 -0600
It lessens the stress on the connections. Heating and cooling of the
leads causes them to increase or decrease in length, thereby stressing
the connections. The loop allows the wire to change without damage to
the connections.
Ken Smith
Gulf Technical Services
3034 Gulf Breeze Parkway
Gulf Breeze, FL 32563
850-934-8324 (Voice) 850-932-0819 (Fax)
On Wed, 25 Feb 2004 18:04:29 -0500 "Shoreline Electronics"
<jstielau@xxxxxxxx> writes:
> What is the importance of the bent loops on these?
>
> Curios!
>
> =================================
> Jeff Stielau
> Shoreline Electronics Repair
> 344 East Main Street
> Clinton,CT 06413
> (860)399-1861
> (860)664-3535 FAX
> jstielau@xxxxxxxx
> =================================
> ----- Original Message -----
> From: <gulftech@xxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, February 25, 2004 4:12 PM
> Subject: [TechAssist] Re: Panasonic CT27G31U Chassis AEDP272
> regulator IC801
> runs very hot
>
>
> > Dominic,
> >
> > Try replacing the STK730-020 with a -030. Higher current, may run
> > cooler. I have been using -090 to replace almost any in the
> series,
> > without any problems. Those do run hot. What normally happens is
> it
> > gets hot enough to cause the connections to crack on the board and
> blow
> > the regulator. Make sure you clean the heat sink and use new heat
> > compound. Also, those regulators come with a loop bent in each
> leg.
> > Don't straighen them; they are important.
> >
> > HTH,
> >
> >
> > Ken Smith
> > Gulf Technical Services
> > 3034 Gulf Breeze Parkway
> > Gulf Breeze, FL 32563
> > 850-934-8324 (Voice) 850-932-0819 (Fax)
> >
> >
> > On Wed, 25 Feb 2004 14:09:15 EST MDileo0000@xxxxxxx writes:
> > > Hi Folks,
> > >
> > > I serviced this for a shorted regulator, IC801 and blown primary
> > > fuse 3
> > > months ago and it is back with the same failure. I replaced the
> > > regulator,
> > > STK730-020, once again and the run voltages are normal, but the
> > > regulator is too hot
> > > to lay my finger on. I have had a few of these recently and all
> seem
> > > to have
> > > hot regulators. Is there something causing this or is it normal?
> > > Could not find
> > > anything in the archives or members tips. If someone could
> upload to
> > > the
> > > members area a schematic of any Panasonic/Quasar that uses this
> > > regulator, it would
> > > be appreciated. Thanks again,
> > >
> > > Dominic DiLeo
> > > Atlantic TV
> > > Freeport, Maine
> > >
> > >
> >
>
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