[Gllug] OT: recommend place to buy 17" tft monitor

[Chris Bell]

On Mon 13 Dec, Nix wrote:
> 

> 
> But nine months after purchasing I turned it on and the *entire screen*
> looked like that, green and red at the bottom, red and blue at the top,
> blue and green in the middle (I think), with bands of greyish no-colour-
> in-particular between them.
> 
> My best guess (knowing almost nothing about monitor internals and based
> on half an hour of web-wanderings and FAQ reading) is that the shadow
> mask is stress-mounted somehow, so that it's really strong when properly
> attached, but when part of it isn't properly attached it can perhaps pop
> entirely free.
> 
> But it was only a guess --- and anyway, it got replaced with no
> difficulty.
> 
   That just sounds like a degauss circuit fault. It is usually a simple
brute force circuit with temperature dependant resistors to deliberately
allow a short pulse of mains to the coil round the edge of the screen, and
at the same time slowly increase mains volts to the rest of the power
supply.
   At one time a normal requirement at work was that you should be able
stand on anything, and stack gear in a lorry up to about shoulder high, but
then someone decided that it was cheaper to buy more off-the-shelf
"domestic" kit and replace the bits that fell off. I have seen monitors
dropped without damage to the tube while the case is shattered, we even used
to stock replacement cases and transfer the bits. Waterproofing was a
plastic dustbin bag taped over the top.

-- 
Chris Bell

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