kaufman@encore.UUCP (kaufman) (04/02/88)
I have a Compaq monochrome monitor sitting idle, that I wish
to graft onto an old IBM PC. I know how to wire up the external
power, but I have a problem with the monitor's modes.
You see, the Compaq monitor is bisynchronous. That is, it can
match its operating frequency for either monochrome or CGA. This
feature works fine in a Compaq, using a Compaq graphics card.
(In CGA mode, it maps the colors to intensity levels.)
Unfortunately, it appears that the monitor always comes up in CGA
mode if used on another PC or using a non-Compaq graphics card.
So: how do I force the Compaq monitor to work at monochrome mode
frequency? I wish to connect it to a TTL-output Hercules-clone
card.
There must be a lot of these monitors sitting around in
closets and basements, from people upgrading to EGA etc.
Thanks. You can answer me here or send me a FidoNet message.
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Compaq is a trademark of Compaq Corp.
IBM is a trademark of Interational Business Machines Corp.
Hercules is a trademark of Hercules Corp?
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__ "In this world we must either institute conventional forms
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/" (_) express; the choice lies between a mask and a fig leaf."
/ \ _ - George Santayana
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/ \ Lar Kaufman = Green Dog of MassNet East 1:322/470
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