Degaussing TV screen

[Peter Rossiter]

I am in the UK. Recently I moved my 19 inch Sony TV to another
room. When I switched it on in its new location the TV had a
colour fringe about two inches wide on the right hand side from the
top to almost the bottom.

I thought it would go away after switching the TV on & off a few
times but it is still there after trying this over a period of
about 30 minutes.

I am no electronics expert but I think I need to degauss the
screen.

All I have got is an old fashioned tape head demagnetiser (for 1/4
inch tape players). Can I use that to reduce the colour fringing?
(I would not go too close because presumably the tape head
demagnetiser has a very concentrated area of operation.

Would I use it when the TV is on or off?

 

[Tom MacIntyre]

On Mon, 26 Apr 2004 22:25:04 +0100, Peter Rossiter <not_me@mail.com>
wrote:

I am in the UK. Recently I moved my 19 inch Sony TV to another
room. When I switched it on in its new location the TV had a
colour fringe about two inches wide on the right hand side from the
top to almost the bottom.

I thought it would go away after switching the TV on & off a few
times but it is still there after trying this over a period of
about 30 minutes.

Have you tried the TV in yet another location to see if the problem
disappears? It's a stretch, but if you are in a steel-framed building
that was ever hit by lightning, the girders may by magnetized. It'll
take quite a degaussing coil to take care of that.

Tom

I am no electronics expert but I think I need to degauss the
screen.

All I have got is an old fashioned tape head demagnetiser (for 1/4
inch tape players). Can I use that to reduce the colour fringing?
(I would not go too close because presumably the tape head
demagnetiser has a very concentrated area of operation.

Would I use it when the TV is on or off?

 

[Ken Weitzel]

Peter Rossiter wrote:

I am in the UK. Recently I moved my 19 inch Sony TV to another
room. When I switched it on in its new location the TV had a
colour fringe about two inches wide on the right hand side from the
top to almost the bottom.

I thought it would go away after switching the TV on & off a few
times but it is still there after trying this over a period of
about 30 minutes.

I am no electronics expert but I think I need to degauss the
screen.

All I have got is an old fashioned tape head demagnetiser (for 1/4
inch tape players). Can I use that to reduce the colour fringing?
(I would not go too close because presumably the tape head
demagnetiser has a very concentrated area of operation.

Would I use it when the TV is on or off?

Hi...

A tape head degausser is much much too small. Not even
worth trying, if anything it will make it worse.

What concerns me is your mention of 30 minutes. The
set's internal degaussing requires a complete cool
down period before it will work again.

Turn it off for a couple of hours; then on for a
minute or two; then another rest for a couple of
hours. Repeat several times.

Take care.

Ken

 

[Art]

Highly probable components within the degauss control circuit have become
marginal. The thermistor in the circuit is highly suspect. May want to have
a tech have a go at your tele.
"Ken Weitzel" <kweitzel@shaw.ca> wrote in message
news:3Efjc.266355$oR5.11851@pd7tw3no...

Peter Rossiter wrote:

I am in the UK. Recently I moved my 19 inch Sony TV to another room.
When I switched it on in its new location the TV had a colour fringe
about two inches wide on the right hand side from the top to almost the
bottom.

I thought it would go away after switching the TV on & off a few times
but it is still there after trying this over a period of about 30
minutes.

I am no electronics expert but I think I need to degauss the screen. All
I have got is an old fashioned tape head demagnetiser (for 1/4 inch tape
players). Can I use that to reduce the colour fringing? (I would not go
too close because presumably the tape head demagnetiser has a very
concentrated area of operation.

Would I use it when the TV is on or off?


Hi...

A tape head degausser is much much too small. Not even
worth trying, if anything it will make it worse.

What concerns me is your mention of 30 minutes. The
set's internal degaussing requires a complete cool
down period before it will work again.

Turn it off for a couple of hours; then on for a
minute or two; then another rest for a couple of
hours. Repeat several times.

Take care.

Ken