#ICD Flicker Free Video2
28-May-93 22:06:39
Sb: #101826-#ICD Flicker Free Video2
Fm: Richard Darling 75000,344
To: Joe Kuzma 70674,1065
Joe-
I have two identical IBM monitors, both work perfectly on a PC with VGA output,
and one (by now I'm not even sure which one) worked perfectly with the first
FFV2 board (I only ever tried one, because, after all it worked). I think I
agree that the sync signal from the FFV2 is bad in some way. I made up a
duplicate in wire of the 9 to 15 pin adapter according to ICD's diagram, and
then actually disconnected the horiz and vert sync lines with minimal effect on
the monitor picture. I'm going to try to borrow a scope this weekend to see if
I can see what's acutally coming out those lines. Incidentally, you are aware
of the variable capacitor you can adjust on the board to control the frequency
aren't you? Also, the ICD Prefs program on the floppy that came with the board
will let you adjust the horizontal frequency from about 50hz to about 80hz. I
hooked up a 1084 to the RGB ports so I could watch what I was doing while
adjusting that. All these things have had an effect, but not solved the
problem. I'll keep you updated.
Dick