[TechAssist] Re: Yoke Buzz FIX...
- From: "Bil Green" <tv.vcrrepair@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 29 Oct 2001 23:58:02 -0800
Thanks Monte!
I read this and it seems that the Philips yoke is
different. Huge pieces of metal that are already
glued in place. Lots of epoxy all over.
I will take the yoke off and spray the inside
windings with lacquer - As some have done with
these - Well, actually a couple guys claim that
dipping it in lacquer will do the job. Too messy!
Bil
----- Original Message -----
From: "DOCVIDEO" <DOCVIDEO@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, October 29, 2001 10:28 AM
Subject: [TechAssist] Re: Yoke Buzz FIX...
>
> FOR TV SET'S WITH JUST A BUZZ......POSSIBLE FIX....
>
>
> Mechanical buzz coming from YOKE. To confirm,
collapse vertical scan by
> obtaining a service LINE. If the buzz stops, the YOKE is
most likely the cause of the
> noise.
>
> Various styles of yokes are used and can exhibit
this symptom. In all cases
> the problem is eliminated by using HOT Melt Glue [ Make
sure GLUE is rated for
> ELECTRONIC APPLICATIONS ] on any part of the yoke where
there is metal to plastic
> contact. It may be necessary to force the glue into any
gaps between metal and
> plastic frames to eliminate buzz.
>
> On some versions of yoke, some metal components [ such
as the corner shunts ]
> maybe covered with tape. Locate the four SPRING Steel "
CORNER SHUNTS " on yoke. The
> SHUNTS are located at the front plastic portions of the
yoke at... 10..2...4...and 8
> o'clock positions.
> They may be covered by gray cloth tape. DO NOT ATTEMPT
TO REMOVE THE CORNER
> SHUNTS.
>
> 1. IF present, remove and discard the tape coverings
from shunts.
> 2. Place the unit face down..on a cloth...being careful
not to scratch the cabinet
> or tube face.
> 3. Cover the corner shunts and surrounding plastic with
HOT MELT GLUE [ available
> at most electronic parts suppliers]. Force glue into
noticeable AIR gaps between the
> SPRING steel corner shunts and the Plastic they are
mounted on.
>
> RTV silicon compound is NOT recommended for this repair
since it remains pliable
> after curing and may still cause vibrating.
>
>
> MONTE MONCRIEF
> BAKERSFIELD, CA.
> DOCVIDEO@xxxxxxxxxx
> ----- Original Message -----
> From: "Bil Green" <tv.vcrrepair@xxxxxxxxxxx>
> To: ".Techassist" <techassist@xxxxxxxxxxxxx>
> Sent: Sunday, October 28, 2001 6:28 PM
> Subject: [TechAssist] Philips 25F800 CONVERG/YOKE
>
>
> >
> > Philips Model TR2503
> > Chassis 25F800
> > 1999 25" TV
> > Bad Convergence Only at Top
> > Yoke is Buzzing (not very loud)
> > Picture is Fine
> >
> > Trying to fix this today. Really would appreciate
> > your help.
> >
> > Thanks,
> >
> > Bil
>
> >>
> I think you are right . I have corrected the problem
however
> with the method
> I noted if the buzz was bearable. Hollis
>
>
>
>
>
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>
>
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>
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