Picture distortion

Sean · Joined: 01 Aug 2007 Posts: 2

I have a Sony 40" XBR flat screen tube t.v. (about 6 months old) and
have been getting small, light green distortions on the right side of
the screen for the past two weeks. It's small, maybe 3 inches tall and
1/2 in wide - right on the very edge of the screen. There's an even
smaller green distortion on the upper left hand side of the screen
too. It's very noticeable when the picture background is a light color
or white but can't be seen if it's black or a dark color. At first I
thought it was the subwoofer being to close to the screen but moving
it made no difference. What could be causing this and how can I fix
this? Any help would be appreciated!

Archived from group: alt>home-theater>misc

Mark P. · Joined: 01 Aug 2007 Posts: 4

On 12 Jul 2003 10:57:15 -0700, ssn171@attbi.com (Sean) touched these
keys:

>I have a Sony 40" XBR flat screen tube t.v. (about 6 months old) and
>have been getting small, light green distortions on the right side of
>the screen for the past two weeks. It's small, maybe 3 inches tall and
>1/2 in wide - right on the very edge of the screen. There's an even
>smaller green distortion on the upper left hand side of the screen
>too. It's very noticeable when the picture background is a light color
>or white but can't be seen if it's black or a dark color. At first I
>thought it was the subwoofer being to close to the screen but moving
>it made no difference. What could be causing this and how can I fix
>this? Any help would be appreciated!

That subwoofer probably did it. Sony TV used to have a built in
degausser that would run when you turned the set on. You can try to
turn it off and on a couple of times and see if it gets better. Keep
that sub away.
Otherwise you will have to get a degaussing coil to pass over the
screen.
Good Luck.
Mark P.

rockville md na terra solsys orion arm....

Sean · Joined: 01 Aug 2007 Posts: 2

Mark,

Thanks for the advice. I moved the subwoofer away from the TV today
and have noticed a small reduction in the distortion. I hope there
wasn't any permament damage! Next question: how or where do I get a
degaussing coil? Can I just go buy one and use it (is it easy to use?)
or do I need to get a TV repairperson to come and do it for me?

mmmm@00000.net (Mark P.) wrote in message news:...
> On 12 Jul 2003 10:57:15 -0700, ssn171@attbi.com (Sean) touched these
> keys:
>
> >I have a Sony 40" XBR flat screen tube t.v. (about 6 months old) and
> >have been getting small, light green distortions on the right side of
> >the screen for the past two weeks. It's small, maybe 3 inches tall and
> >1/2 in wide - right on the very edge of the screen. There's an even
> >smaller green distortion on the upper left hand side of the screen
> >too. It's very noticeable when the picture background is a light color
> >or white but can't be seen if it's black or a dark color. At first I
> >thought it was the subwoofer being to close to the screen but moving
> >it made no difference. What could be causing this and how can I fix
> >this? Any help would be appreciated!
>
>
> That subwoofer probably did it. Sony TV used to have a built in
> degausser that would run when you turned the set on. You can try to
> turn it off and on a couple of times and see if it gets better. Keep
> that sub away.
> Otherwise you will have to get a degaussing coil to pass over the
> screen.
> Good Luck.
> Mark P.
>
> rockville md na terra solsys orion arm....

JGM · Joined: 01 Aug 2007 Posts: 10

Sean wrote:

>I moved the subwoofer away from the TV today
>and have noticed a small reduction in the distortion. I hope there
>wasn't any permament damage! Next question: how or where do I get a
>degaussing coil? Can I just go buy one and use it (is it easy to use?)

Actually one can do more harm than good with a degaussing coil if not careful
and knowledgable -- the degaussing coil is a relative sledgehammer of a tool
and modern TVs have fairly delicate shadow masks. Before you go this step
simply wait a few days and power cycle the TV a few times a day (the TV will
automatically do a mild self-degaussing each time it is turned on cold) and see
if your problem doesn't improve. I've had hideously miscolored tubes right
themselves over a short amount of time.

JGM

Mark P. · Joined: 01 Aug 2007 Posts: 4

On 15 Jul 2003 00:39:46 GMT, jgmclean0@aol.com (JGM) touched these
keys:

>Sean wrote:
>
>>I moved the subwoofer away from the TV today
>>and have noticed a small reduction in the distortion. I hope there
>>wasn't any permament damage! Next question: how or where do I get a
>>degaussing coil? Can I just go buy one and use it (is it easy to use?)
>
> Actually one can do more harm than good with a degaussing coil if not careful
>and knowledgable -- the degaussing coil is a relative sledgehammer of a tool
>and modern TVs have fairly delicate shadow masks. Before you go this step
>simply wait a few days and power cycle the TV a few times a day (the TV will
>automatically do a mild self-degaussing each time it is turned on cold) and see
>if your problem doesn't improve. I've had hideously miscolored tubes right
>themselves over a short amount of time.
>
>JGM

I agree. Be patient. Maybe Radio Shack website has a coil. Do some
reading first.

I must admit I haven't used one in 20 years.
Mark P.

rockville md na terra solsys orion arm....