[TechAssist] Re: RCA F36450 ATC113CA1 whining in SMPS (Fixed)
- From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 9 Apr 2004 09:09:44 -0400
There is a new part number for that transformer LP03 257159
Phillip R Hull STET
phil245@xxxxxxxxxxxxx
FAX 517--569-3075
Professional Technicians only
----- Original Message -----
From: "Tim Poole" <tdp13158@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, April 09, 2004 1:23 AM
Subject: [TechAssist] Re: RCA F36450 ATC113CA1 whining in SMPS (Fixed)
> I havent used minwax, but super glue works usually works within minutes on
> small transformers.
> ----- Original Message -----
> From: "Jeff F" <jlfonz@xxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, April 09, 2004 12:15 AM
> Subject: [TechAssist] Re: RCA F36450 ATC113CA1 whining in SMPS (Fixed)
>
>
> > I finally fixed the whining SMPS transformer on this set. I also
> determined
> > that this is the same transformer as the ones in similar chassis.
(forgot
> to
> > write it down--easily searchable in parts finder--which I don't have
here)
> > I dipped the transformer just like I used to dip NAP yokes. I put hung
it
> > upside down in a can of minwax polyurethane overnight--then hung it to
dry
> > for a couple of days. IT WORKED!!
> >
> > The bummer---as soon as I turn on the set---there is another
whine---from
> > the yoke (bonded no less)---jeesh. I ran down to the hardware store for
a
> > spray can of the same stuff and soaked it well. Told the customer to
let
> it
> > dry for a few hours before firing it up again. I/we know that some
noise
> > from the yoke is normal---but this customer was well tuned into the othe
> > noises coming from the set---so he wanted this one gone also. He may or
> may
> > not have heard it after the back was back on but I had to at least go
> > through the motions to stiffle it-----edith.
> >
> > TV Doctor
> > Avalon. Wi
> >
> >
> > ----- Original Message -----
> > From: "Jeff F" <jlfonz@xxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Thursday, March 25, 2004 1:12 PM
> > Subject: [TechAssist] RCA F36450 ATC113CA1 whining in SMPS
> >
> >
> > > This is the second one I've had with this problem. I frankly don't
know
> > what
> > > happened with the first one (exchanged?). I replaced the smps
> transformer
> > > T14101 and timing caps associated with it C14402 C14409 C14410 and the
> > > obvious siliconing the beads on the diodes in the smps. Sometimes I
can
> > push
> > > on the smps transformer and get it to stop whining (wish that worked
> with
> > my
> > > wife). Has anyone seen intermittant shorts in the board material
itself?
> > Any
> > > other suggestions. Had 3 techs (I was the 3rd) try on the first one
with
> > no
> > > success. TIA
> > >
> > > TV Doctor
> > > Avalon, Wi
> > >
> > >
> >
>
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