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EGA monitor wrong colors

DonutKing

Experienced Member
Joined
Mar 24, 2011
Messages
96
Location
Gold Coast, Australia
I have an old EGA monitor, an ECM-5400

I'm using a Paradise PEGA-1A EGA adapter, presumably this one http://stason.org/TULARC/pc/graphics-cards/A-B/AUVA-COMPUTER-INC-EGA-Monochrome-HEGA-II.html

I've noticed that some EGA games have odd colors. I ran a DIAGS utility that I found on a Hyundai DOS 3.3 floppy that did a video test. None of the 'high intensity' modes are showing. Normal and high-intensity text looks identical, light and dark colors looks the same, brown looks like red, and on one of the tests the background didn't display at all.

NRqXq.jpg

RJhNY.jpg

vaQRV.jpg


Am I right in thinking that one of the wires in the monitor cable is broken, which could cause these problems?
 

dabone

Veteran Member
Joined
Feb 26, 2009
Messages
1,185
Location
Chattanooga, TN - USA
If a cable is broken it would be the I of RGBI because all the base colors are there. (Pin6), But it might be a bad card.

Later,
dabone
 

DonutKing

Experienced Member
Joined
Mar 24, 2011
Messages
96
Location
Gold Coast, Australia
I've tried 2 cards (Both similar t othe one linked above) so I assume it is indeed the cable.
Is it possible that I've configured the DIP switches on the card incorrectly? I've set them all for enhanced RGB
 

modem7

Veteran Member
Joined
May 29, 2006
Messages
8,474
Location
Melbourne, Australia
Does the ECM-5400 have any switches on it (obviously apart from a power switch)? An EGA like multi-sync monitor that I have, has a 'colour mode' switch on the rear that must be the correct position when it's attached to an IBM PC family computer, otherwise I start seeing the same kind of issues you are describing.
 
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