who's got an M88k Aviion? - test-drb@ccmp.vtda.org

20 Sep 2001

Hello Salo,
...
  btw. i have another problem. i have Sony GDM-1601/8
monitor
 (shipped by Data General with own logo) connected to my AV 530
 with graphics card by 3 BNC RGB cable made from standard 50ohm
 coaxial cables (i know there should be 75ohm ones, but i just
 wanted to try it). i am not sure if 3 cables are enough because
 that monitor has 5 BNC connectors (2 additional ones for horizontal
 and vertical sync). i tried to find any docs but without success
 (no info about 1601/8, just 1601 and 1601/6). problem is that
 picture on monitor looks like with higher frequency than monitor
 can handle or without some sync, lines are shifted to each other
 and it is shaking a bit. i hoped that sync on green was enogh but
 now i am not sure. graphics card i have is some data general 8
 B/P GRAPHICS CARD shipped with that AV 530 (monitor was probably
 used with another machine).
 any help will be appreciated.. thanks 
If you don't mind experimenting, under the hood, and can do so
without electrocuting yourself, I believe on the left side of
the monitor you will find some adjustments, some of which might
be labeled, horizontal frequency, horizontal phase, horizontal
size, horizontal center, etc. You might try tweaking some of
those and seeing if that stabilizes the image.
Or you might try a 5 BNC variety Sony multisync, just hooking
up R, G, and B.
or if you have a multisync with a HD15M pigtail, I have hooked
these up by coming out of computers with BNC video out by
connecting to a BNC to HD15 cable hooked up so that the BNC's
are to the computer, then used a HD15F-HD15F gender changer to
join the BNC to HD15 cable to the monitor's HD15M pigtail.
Just some experimental options to possibly try.
                          Sincerely,
                           Bennett