Folks! Need assistance with a very strange video problem. I recently acquired an A1000 with a 1084S monitor, but it did not come with a video cable. Looking through my parts bin, I hacked up a DB25 and a Roland keyboard connector and did my own RGB cable. Here is where things get interesting:
The A1000 displays video fine on the 1084S, but ONLY on the Kickstart screen on a cold boot. As soon as I load the Kickstart disc, I get a black screen instead of the usual Workbench floppy screen. At this point I thought my Kickstart floppy was to blame. In an attempt to isolate the problem, I connected a 15khz-compatible LCD monitor and lo and behold, the A1000 displayed the workbench prompt. Plug back the 1084S, and the black screen comes back again.
Now here is the kicker - if I hook up the 1084S to my A500, it works fine no matter what program I load, which makes me wonder if the video pinout on the A1000 and A500 have slight differences. The easy solution would be to leave the 1084S on the A500 and the LCD on the A1000, but I insist on keeping the 1084S on the A1000.
This is what I based myself on to build my cable:
Any clues?
The A1000 displays video fine on the 1084S, but ONLY on the Kickstart screen on a cold boot. As soon as I load the Kickstart disc, I get a black screen instead of the usual Workbench floppy screen. At this point I thought my Kickstart floppy was to blame. In an attempt to isolate the problem, I connected a 15khz-compatible LCD monitor and lo and behold, the A1000 displayed the workbench prompt. Plug back the 1084S, and the black screen comes back again.
Now here is the kicker - if I hook up the 1084S to my A500, it works fine no matter what program I load, which makes me wonder if the video pinout on the A1000 and A500 have slight differences. The easy solution would be to leave the 1084S on the A500 and the LCD on the A1000, but I insist on keeping the 1084S on the A1000.
This is what I based myself on to build my cable:
Any clues?