From: Baltissen, GJPAA (Ruud) (ruud.baltissen_at_abp.nl)
Date: 2003-11-20 12:06:45
Hallo allemaal,
To test a loose motherboard, I often unscrew the monitor of my own 8032-SK
to be able to use it. But this monitor is not designed to be used stand
alone so I had the idea of using my MDA monitor instead. So I used Nicolas's
idea of using a 74LS86 to be able to invert the signals.
Unfortunately the result wasn't what I expected:
- either you could read just the first 5 characters of each line at the last
part of the screen
- or (after inverting H-sync) read everything except the first 5 chars.
Turning the H-pos knob just shifted the image, nothing more.
OK, there are fifferences between a MDA monitor and a CGA monitor but I
haven't an idea which ones.
Anyone an idea what I must do to get a normal picture?
Thanks !!!
--
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/ __|__
/ / |_/ Groetjes, Ruud
\ \__|_\
\___| http://Ruud.C64.org
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