Re: Power Issue With TFT Monitors


"John of Aix" <j.murphy@xxxxxxxxxxxxxx> wrote in message
news:4730703c$0$27402$ba4acef3@xxxxxxxxxxxxxxxxx
SpeedBird wrote:
Hi there,

I have a strange problem in my offices. We use a combination of TFT
and CRT monitors with our PC's. Over the last few months the TFTs have
started to die. They begin by flickering and eventually don't display
a signal at all even though they have power and a signal (the power
light remains illuminated). Sometimes they will display an image
momentarily but flicker back off after a second or so. I have checked
power management/energy saving features but they don't seem to be a
factor.

The monitors are of varying ages, different brands and from different
stores. Only TFT monitors are affected. I cannot find a common reason
for them to fail. I'm due to do a PAT test later this month but I'm
worried that this will kill the few remaining monitors.

Is this likely to be a problem with the mains electrical supply,
interference or something else? We have two separate incoming mains
supplies but monitors have died regardless of which supply the ring
main was powered from.

I recently came across a strange virus that seemed to black out TFT
screens but not CRTs. The image of Windows was just about visible if you
looked hard (like remanence), perhaps it could be that.

I think someone pulled your chain. There is no way a virus could manifest
itself this way.


.

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