[TechAssist] Re: RCA F36450 ATC113CA1 whining in SMPS (Fixed)
- From: "Tim Poole" <tdp13158@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 9 Apr 2004 01:23:28 -0400
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
> >
> >
>
> --------------------------------------------------------------------------
> ---
> > Lost Password:
> > http://www.tech-assist.org and select "Login Problems?".
> > Email Archives:
> > //www.freelists.org/archives/techassist/
> >
> >
>
>
> --------------------------------------------------------------------------
---
> Lost Password:
> http://www.tech-assist.org and select "Login Problems?".
> Email Archives:
> //www.freelists.org/archives/techassist/
>
>
-----------------------------------------------------------------------------
Lost Password:
http://www.tech-assist.org and select "Login Problems?".
Email Archives:
//www.freelists.org/archives/techassist/
Other related posts:
