Strange degauss problem with Iiyama monitor

  spinaltap 01:54 19 Sep 07

Hi, I've got a 19" Iiyama CRT monitor, model s900mt1. Often when I turn it on the top part of the screen is purple or green, as if there is a magnetic source nearby (there isn't). Usually after waiting a few minutes and degaussing it, the screen is fine and will give a very good picture until it's turned off, the problem may return when it's turned back on again, even if it's seconds later. However sometimes degaussing it makes it worse, and I need to wait a few mins more and try again.

If the monitor is never powered off (i.e. always left in sleep/standby mode) it won't go 'bad' when it comes back on again, but it's not very environmentally friendly! Any idea what's causing it or any potential fixes?



  DieSse 02:04 19 Sep 07

Sounds silly - but - disconnect it - put it in the car, take it for a short drive around, then try it again.

I've seen a TV once with a similar steage gaussing-up problem - a woal around the house and putting it back in a slightly different place eventually cured it.

Much to amazed mutterings from the customer who had to help me carry it around.

Sometimes it can be something metallic (steel) - like a filing cabinet, which is not obviously magnetised.

Or it may even be an odd problem with the degaussing coil in the monitor itself.

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