Monitor acting like a magnet is near

[Nolan75]

But there is not a magnet that is unshielded, and I have tried moving my speakers away from the monitor to no effect. I have the Logitech z-640 speaker system, and a KDS 19" VS-190is monitor. The lower left corner of the monitor has been slowly losing color for about a week now. It is starting to get worse as well. The only change that I have made is to move the monitor to a different spot on the desk and also changed my speakers to the Z-640's. Any one got any suggestions?

Nolan

 

[EdipisReks]

take it to a tv repair shop and have them run a degaussing wand over it. it should only cost a few bucks and i have seen this procedure fix monitors with the symptoms you are describing.

 

[Glitchny]

try using the degauss feature on your monitor if it has one, i know mine has that problem when it gets near my speakers, i hit that and everything is good again

 

[Marshallj]

Originally posted by: Nolan75
But there is not a magnet that is unshielded, and I have tried moving my speakers away from the monitor to no effect. I have the Logitech z-640 speaker system, and a KDS 19" VS-190is monitor. The lower left corner of the monitor has been slowly losing color for about a week now. It is starting to get worse as well. The only change that I have made is to move the monitor to a different spot on the desk and also changed my speakers to the Z-640's. Any one got any suggestions?

Nolan

Just curious, how close is your monitor to the wall?


My monitor is near the wall and I have the same problem. But I realized that the problem was due to the magnetic field generated by electrical wires behind the wall. I put a steel panel from an old computer case between the wall and my monitor and it lessened the distortion, since steel is magnetic and acts as a shield.

 

[Gosharkss]

Originally posted by: Marshallj

Originally posted by: Nolan75
But there is not a magnet that is unshielded, and I have tried moving my speakers away from the monitor to no effect. I have the Logitech z-640 speaker system, and a KDS 19" VS-190is monitor. The lower left corner of the monitor has been slowly losing color for about a week now. It is starting to get worse as well. The only change that I have made is to move the monitor to a different spot on the desk and also changed my speakers to the Z-640's. Any one got any suggestions?

Nolan

Just curious, how close is your monitor to the wall?


My monitor is near the wall and I have the same problem. But I realized that the problem was due to the magnetic field generated by electrical wires behind the wall. I put a steel panel from an old computer case between the wall and my monitor and it lessened the distortion, since steel is magnetic and acts as a shield.

You are correct steel can be magnetized, once it is, it becomes a source of magnetic fields and does nothing to shield them.

 

[Marshallj]

Originally posted by: Gosharkss

You are correct steel can be magnetized, once it is, it becomes a source of magnetic fields and does nothing to shield them.

Without the panel between my monitor and the wall, the upper left corner of my screen is dark. With the panel there, the darkness is significantly reduced. The panel's been sitting there for weeks now and the darkness problem has not returned. However, if I take the panel away the darkness immediately returns.

Having the steel panel there works and its effectiveness has not been reduced. It hasn't become magnetised, otherwise the darkness would return.

 

[Marshallj]

Originally posted by: Gosharkss
You are correct steel can be magnetized, once it is, it becomes a source of magnetic fields and does nothing to shield them.

By the way, don't forget that the wiring in a house is 60 hz alternating current, meaning that the magnetic field that is generated by the wires will change polarity 60 times per second. So it can't magnetize my steel plate since the polarity of the field is constantly reversing.

In fact, this is how they DE-magnetize things... subject them to a rapidly reversing magnetic field, and it will remove the magnetism they once had.