[TechAssist] Re: Samsung tv/vcr VM6105 squell from power supply.
- From: gulftech@xxxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 26 Oct 2002 13:16:06 -0500
Rick,
You have identified the biggest problem in fixing high-frequency
rattles--hearing them so you can both find the source, AND know the noise
has been removed. Some tech use a stethoscope, some use a long
screwdriver held to one ear, and some make a cone out of paper--like a
megaphone in reverse. I have done the second and the third, but my
favorite is to invite the young, cute secretary from next door to lend an
ear.
I have found clear RTV (silicone rubber) to work the best in silencing
noisy coils and transformers. Sometimes, I remove them and place several
light coats of clear polyeurothane (sp?). Once dry, coat with RTV.
Works for me. The young woman next door says I do good work.
Ken Smith
Gulf Technical Services
3034 Gulf Breeze Parkway
Gulf Breeze, FL 32563
850-934-8324 (Voice) 850-932-0819 (Fax)
On Sat, 26 Oct 2002 10:58:50 -0500 "Mitchs Electronics"
<Mitchstv@xxxxxxxxxx> writes:
>
> Hi guys, customer says hi pitch Squeal when set is off is driving
> her crazy.
> A year ago I removed power supply transformer and drove wooden
> q-tips in to
> it, glued and resoldered it. She of course says it was never better.
> My problem no part # for transformer and being a Guy I cant hear it
> squeal
> anyway. Any Ideas?
> Rick Mitchell
> Mitch's Electronics Ser.Co.
> Mitchstv@xxxxxxxxxx
> 3935 south 20th
> Lincoln, Nebraska 68502
>
>
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