Hi all,
I have a 19" CRT Sony Trinitron Multiscan E400 monitor. It has been
working fine until the last few days, but now all of a sudden the
screens brightness seems to be altering by itself (eg dimmer, then
lighter) of its own accord. It happens very rarely - maybe once every
few hours. On one occasion the screen started resizing itself aswell.
I would like to continue using it until it eventually dies, but when
googling the problem I came across a poster that seems to have a
similar problem here:-
http://groups.google.com/group/sci.electronics.repair/browse_thread/t...
and this post has me worried:-
"This ain't what you asked, but I'd be concerned...
The death of the monitor is NOT your primary concern.
CRT monitors are run at about the maximum voltage you can get away
with
without generating excessive X-rays.
If your voltage is normal but dropping as you increase brightness, no
problem. But what if it's unregulated and going HIGHER when you turn
down the brightness??? That's what happens when the bleeder resistor
goes open.
Can't tell from your description. But how much risk do you want to
take with your eyesight?
Where'd I put my flameproof suit??? OK, let me have it...
mike"
Now all I really want to know if should I be worried? Could the
monitor be emitting x-rays? Or am I safe to continue using it? Is there any part that could fail in a CRT which could make it pose a health risk?
Thanks in advance
I have a 19" CRT Sony Trinitron Multiscan E400 monitor. It has been
working fine until the last few days, but now all of a sudden the
screens brightness seems to be altering by itself (eg dimmer, then
lighter) of its own accord. It happens very rarely - maybe once every
few hours. On one occasion the screen started resizing itself aswell.
I would like to continue using it until it eventually dies, but when
googling the problem I came across a poster that seems to have a
similar problem here:-
http://groups.google.com/group/sci.electronics.repair/browse_thread/t...
and this post has me worried:-
"This ain't what you asked, but I'd be concerned...
The death of the monitor is NOT your primary concern.
CRT monitors are run at about the maximum voltage you can get away
with
without generating excessive X-rays.
If your voltage is normal but dropping as you increase brightness, no
problem. But what if it's unregulated and going HIGHER when you turn
down the brightness??? That's what happens when the bleeder resistor
goes open.
Can't tell from your description. But how much risk do you want to
take with your eyesight?
Where'd I put my flameproof suit??? OK, let me have it...
mike"
Now all I really want to know if should I be worried? Could the
monitor be emitting x-rays? Or am I safe to continue using it? Is there any part that could fail in a CRT which could make it pose a health risk?
Thanks in advance
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