[TechAssist] Re: SONY TV - KV-36FV1 Bad Colors on pix tube.
- From: "Hoyt's TV" <hoytstv@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 2 Jun 2004 19:26:28 -0400
The way I learned to do it, back in the stone age, was to start 6 feet away
from the front with the coil perpendicular when you turn it on. Then turn it
sideways and with a circular motion bring it up to the tube, covering all
the tube then back off the same way and turn it perpendicular before turning
it off. Not necessary to do the sides and back unless you suspect some metal
there, got magnetized.
Before the advent of automatic degaussing, we had to degauss every time we
moved a set because it was the movement through the earths magnetic field
that magnetized the shadow mask. That wasn't strong enough to have much
affect on the shields but telephone bells and vacuum cleaners would do a job
on them.
Russ Hoyt
Hoyt's TV
Exeter, NH
----- Original Message -----
From: "Bruce Tiedeman" <btied@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, June 02, 2004 3:40 PM
Subject: [TechAssist] Re: SONY TV - KV-36FV1 Bad Colors on pix tube.
> Russ , I leave the set on. Put the Degaussing coil in front of the tube
and
> energize the coil . Move the coil in a circular motion in front and around
> cabinet sides, bring the coil around front again moving it away from the
> tube as you go. I then turn off the coil and abruptly turn the coil
> perpendicular to the set .
> That's it, works good unless set has been dropped. If the set has been
> dropped or hit by lightning may take a lot more work. Repeat the
procedure.
> Some times the degaussing circuit malfunctions and you have to repair.
> Bruce
>
> .B&T Electronics
> 139 Margaret St
> Sarnia Ontario
> Canada
> N7T 2Y3
> 519 344 1850
> ----- Original Message -----
> From: "Hoyt's TV" <hoytstv@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, June 02, 2004 3:05 PM
> Subject: [TechAssist] Re: SONY TV - KV-36FV1 Bad Colors on pix tube.
>
>
> > I've been using that big black horse collar for over 40 years, and
haven't
> > lost a patient yet.
> >
> > If you do something stupid like turn it off while it's next to the tube,
> it
> > will magnetize the shadow mask so it looks like it needs to be
degaussed.
> > Sometimes enough so it takes a lot of degaussing to undo what you did.
> >
> >
> > Russ Hoyt
> > Hoyt's TV
> > Exeter, NH
> >
> >
> > ----- Original Message -----
> > From: "ElectronicRepairServices" <ElectronicRepair@xxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Wednesday, June 02, 2004 2:15 PM
> > Subject: [TechAssist] SONY TV - KV-36FV1 Bad Colors on pix tube.
> >
> >
> > > I have to go on a service call on this TV, the costumer says that the
> > colors
> > > are bad, sounds like the degausing is bad on this TV, it could be as
> > simple
> > > as resoldering the degausing thermistor.
> > > My question is, and I have heard conflicting reports, could I use the
> hand
> > > held degausing coil to degause the pix tube, some servicers say that
> could
> > > damage the pix tube.
> > > Thank you, Mark
> > > Electronic Repair Services
> > > 48 W. James St.
> > > Lancaster, PA 17603
> > >
> > >
> >
>
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