[TechAssist] Re: Panasonic CT27G31U Chassis AEDP272 regulator IC801 runs very hot
- From: "Shoreline Electronics" <jstielau@xxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 25 Feb 2004 18:04:29 -0500
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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