Recently purchased an Operation Thunderbolt cabinet cheap that was sold as, "It was working, but the monitor died".
Figured I would remove the CRT, put a modern display in it and move on.
Quickly realized I needed a converter board to get a display, so ordered a GBS-8220 and after a bit of messing around I got a picture.
Unfortunately the picture displays an error indicating a failure in the color ram (see attached image).
Looking at the board, it has 8x 2k static RAM chips (TMM-2018-35). I've ordered 8 replacements as they are cheap, but they are soldered to the PCB and I'm not looking forward to removing all 8.
Is there any way to tell from the memory address in the photo which chip is likely to be the culprit?
Or indeed if its likely to be the RAM at all?
PS. I know the colours are horrible on the screen, but until I can get it to boot that's way down on my list of priorities
Thanks.
Figured I would remove the CRT, put a modern display in it and move on.
Quickly realized I needed a converter board to get a display, so ordered a GBS-8220 and after a bit of messing around I got a picture.
Unfortunately the picture displays an error indicating a failure in the color ram (see attached image).
Looking at the board, it has 8x 2k static RAM chips (TMM-2018-35). I've ordered 8 replacements as they are cheap, but they are soldered to the PCB and I'm not looking forward to removing all 8.
Is there any way to tell from the memory address in the photo which chip is likely to be the culprit?
Or indeed if its likely to be the RAM at all?
PS. I know the colours are horrible on the screen, but until I can get it to boot that's way down on my list of priorities
Thanks.