Maker Pro
Maker Pro

Monitor hookup

T

Ted

Jan 1, 1970
0
I have a computer built in Italy that has, what I believe to be, CGA
outputs. I would like to pin these outputs to a VGA monitor. Can
someone steer me to a previous discussion or web page, or reply with
the pinouts.

Existing computer output signals:
(DB9 connector)
pin 1 Analog red 1Vpp w/ 75 ohm load
pin 2 Analog gn 1Vpp w/ 75 ohm load
pin 3 Analog blue 1Vpp w/ 75 ohm load
pin 4 15KHz neg horiz sync TTL w 220 ohm in series
pin 5 50 Hz neg vert sync TTL w 220 ohm in series
pin 7 and 8 ground

Thanks
 
J

Jerry Greenberg

Jan 1, 1970
0
Your VGA monitor will never be able to handle the format of the CGA
characteristics. You will need a CGA monitor. It has to do with the
scan rates, and specifications of the video signals being fed out.

Jerry Greenberg
http://www.zoom-one.com
 
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