[TechAssist] Re: Yoke Buzz FIX...
- From: "DOCVIDEO" <DOCVIDEO@xxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 29 Oct 2001 10:28:42 -0800
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
Help make your TechAssist online repair tips
database better! Submit your fixes here:
http://www.circuitwork.com/techassist/tip/#tips
To unsubscribe write to:
techassist-request@xxxxxxxxxxxxx
with unsubscribe in the subject line.
Help make your TechAssist online repair tips
database better! Submit your fixes here:
http://www.circuitwork.com/techassist/tip/#tips
To unsubscribe write to:
techassist-request@xxxxxxxxxxxxx
with unsubscribe in the subject line.
Other related posts:
