PC Monitor needs shielding?

T

Tim Holden

Guest
Apologies if I am in the wrong group (I know I found a pc specific
newsgroup in the past but now I can't relocate it)

I have a 19" CRT monitor with my PC which is now 4 years old.
Straight after some electrical work was carried out in the house the
picture on the screen devloped what can best be described as
vibration.

The vibration is particularly acute (to the point of being unusable)
when either the washer or drier are running. The washer and drier are
out in the garage, approximately 5 to 6 metres away from the pc
monitor.

As I type there is a persistent small amount of vibration on the
screen with only things like the tv and fridges currently on.

So, before I invest in a new screen I was wondering:

Could a shielded cable from the pc to the monitor cure the problem?

Is my monitor just old and the vibration is just a sign that the tube
is going?

Many thanks for your help (or directions to the elusive pc help
nesgroup!)

Tim
 
"Tim Holden" <timpholden@yahoo.co.uk> wrote in message
news:d17e026a.0312300406.94c2547@posting.google.com...
Apologies if I am in the wrong group (I know I found a pc specific
newsgroup in the past but now I can't relocate it)

I have a 19" CRT monitor with my PC which is now 4 years old.
Straight after some electrical work was carried out in the house the
picture on the screen devloped what can best be described as
vibration.

The vibration is particularly acute (to the point of being unusable)
when either the washer or drier are running. The washer and drier are
out in the garage, approximately 5 to 6 metres away from the pc
monitor.

As I type there is a persistent small amount of vibration on the
screen with only things like the tv and fridges currently on.

So, before I invest in a new screen I was wondering:

Could a shielded cable from the pc to the monitor cure the problem?

Is my monitor just old and the vibration is just a sign that the tube
is going?

Many thanks for your help (or directions to the elusive pc help
nesgroup!)

Tim
Click to expand...
G'Day
It would probably be best to determine if the other devices were causing the
problem. Like is everything Ok with all the washer drier etc turned off ?
You are dealing with a 4 year old monitor.
--
Regards ............... Rheilly Phoull
 
If the monitor is too close to something that is making a magnetic field,
such as a heavy electrical appliance, this will cause the fault you are
describing. Also if there are any heavy electrical wires inside the walls
and or floors that are carrying a large load on them, the problem will also
be there, when the load is present. We see this in many industrial
buildings where a computer monitor is located near heavy electrical wiring,
or near to some machinery.

It is not a factor of shielding the wiring to the monitor. It would be the
wiring in the walls, and the other major devices that have to be
electromagnetic shielded, including the monitor. The cost of proper
electromagnetic shielding would be prohibitive. You would be best to move
the computer and monitor out of the area, from where the magnetic problem is
located. You can also get a LCD panel display. These are not sensitive to
magnetic fields as like a CRT type display. Also, if there is a strong
magnetic field near to the computer, you can be sure that eventually there
will be data corruption on the hard disk, and other problems with the
computer occurring over time.


--

Greetings,

Jerry Greenberg GLG Technologies GLG
=========================================
WebPage http://www.zoom-one.com
Electronics http://www.zoom-one.com/electron.htm
=========================================


"Tim Holden" <timpholden@yahoo.co.uk> wrote in message
news:d17e026a.0312300406.94c2547@posting.google.com...
Apologies if I am in the wrong group (I know I found a pc specific
newsgroup in the past but now I can't relocate it)

I have a 19" CRT monitor with my PC which is now 4 years old.
Straight after some electrical work was carried out in the house the
picture on the screen devloped what can best be described as
vibration.

The vibration is particularly acute (to the point of being unusable)
when either the washer or drier are running. The washer and drier are
out in the garage, approximately 5 to 6 metres away from the pc
monitor.

As I type there is a persistent small amount of vibration on the
screen with only things like the tv and fridges currently on.

So, before I invest in a new screen I was wondering:

Could a shielded cable from the pc to the monitor cure the problem?

Is my monitor just old and the vibration is just a sign that the tube
is going?

Many thanks for your help (or directions to the elusive pc help
nesgroup!)

Tim
 
"Jerry G." <jerryg50@hotmail.com> wrote in message
news:bss4kk$3ba$2@news.eusc.inter.net...
If the monitor is too close to something that is making a magnetic field,
such as a heavy electrical appliance, this will cause the fault you are
describing. Also if there are any heavy electrical wires inside the walls
and or floors that are carrying a large load on them, the problem will
also
be there, when the load is present. We see this in many industrial
buildings where a computer monitor is located near heavy electrical
wiring,
or near to some machinery.

It is not a factor of shielding the wiring to the monitor. It would be
the
wiring in the walls, and the other major devices that have to be
electromagnetic shielded, including the monitor. The cost of proper
electromagnetic shielding would be prohibitive. You would be best to move
the computer and monitor out of the area, from where the magnetic problem
is
located. You can also get a LCD panel display. These are not sensitive to
magnetic fields as like a CRT type display. Also, if there is a strong
magnetic field near to the computer, you can be sure that eventually there
will be data corruption on the hard disk, and other problems with the
computer occurring over time.
Click to expand...

I used to get this same problem too.. I live in the UK and everything in my
house is driven off of the same line (all plugs in the house are on one ring
circut)

But what your saying does sound right, My monitor used to sit really close
to the wall and I moved it out a bit and that did seem to fix the problem.
So maybee he should just pull it all away from the wall a bit..

BTW, My monitor is a 17" crt (CTX).. It doesnt have some of the nice
sheilding I have seen in other units (like dell monitors usually have)
 
Hi!

Make sure the neutral on your power line or new wiring is in good shape.
(Keep in mind that I'm in the US, where seemingly the names/purposes of
electrical conductors can differ from those in the UK or other parts of the
world...so if what I'm saying makes no sense...that might be why...)

The neutral line on my electrical service burned in two a while back out on
the power pole. This caused symptoms exactly like the vibration you are
describing.

It may not be the problem you have, but it's worth making sure all the
wiring is in good shape and was properly installed. A lot of devices in my
home suffered damage from this little episode. Thankfully most of it was
repairable.

William
 
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