IBM PC hacking
ard at p850ug1.demon.co.uk
Tue Sep 27 17:32:48 CDT 2005
> Oh, another favorite feature: The card had a signal line that could activate
> the degaussing circuit on the bundled AT&T monitor. I almost fell out of my
> chair when I ran diagnostic software that printed something like
> "Degaussing..." and then was quickly followed by a loud noise and the familiar
> "twisty pix" distortion of a monitor in its degaussing cycle... scared the
> crap out of me.
I beleive the HP9845C (colour monitor) had a DEGAUSS command in the BASIC
that would energise the degausing coil. And a CONVERGE command that would
display the appropriate patterns for doing convergeance adjustments. Alas
I only have a 9845B (with the enhanced mono monitor) so I cna't try them out.
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