Macintosh IIci. Using VGA adapter. — #3

Post #3 by Trash80toHP_Mini

Source Forum	Macintosh IIci. Using VGA adapter. — #3
Category	Troubleshooting
Post Date	Fri, 26 Sep 2014 - 17:34
Original URL	https://68kmla.org/bb/threads/macintosh-iici-using-vga-adapter.255/

Post

snake88usa said:
I have a Acer wide screen LCD . . .

That's likely problem #1, it's probably 60Hz Sync only, you'll definitely need to source a Mac-Tolerant MuliSync at some point in your collecting. It looks like the IIci would be reason #1 for that necessity.

. . . I set it for VGA with 640x480 and got no signal.

Try setting it for 512x384 (12" RGB) as that's the only 60Hz resolution available on the IIci. IIci Portrait output is proprietary Apple Monitor specific at 67Hz as is 640x480 for "High Res RGB" at Apple's much vaunted (proprietary/compatibility hostile) "flicker free" 75Hz refresh rate.

All info from the ENHANCE Liberty and MacLiberty Adapter Matrix. LEM & EveryMac got squat, didn't think to check Gamba, it's probably on that chart as well . . .

edit:

http://home.earthlink.net/~gamba2/cpumonmatrix.html

. . . nope, no sync rate info, Scan dump time!