So I have this Shock Troopers 1 cart I've owned for many years which worked well back in the day, but doesn't now
I have 2 MVS boards, and the issue is different on each:
- Long board (I think it's a MV1F): boot up (classic green screen with artifacts) -> Neo Geo logo with music -> reboots to green screen (back to step 1)
- Short board (MV1B1): boot up (green screen with artifacts) -> small graphics glitch -> black screen (no reboot, stays here forever) EDIT: Fixed, now it reboots like the other one (I enabled dip switch 8, pause, by accident)
I've tried cleaning the contacts with isopropyl alcohol and cotton earbuds, also with a toothbrush, but nothing changed. Other games work perfectly on both bases.
I opened the cart and didn't spot anything obvious that could be the culprit. Some sides were quite sticky (despite the rest of the cart being pristine), presumably that's soldering flux used in the factory? I'm attaching some photos of the boards
Coincidentally, this week I got a Unibios 4.0 (which I need to install on the long board), and I've seen it has some diagnostics, so maybe I can use that to get more clues of what might be happening? With the regular BIOS I can access the service menu. The game shows up in the game list, although some settings have typos (e.g. it displayed something like "LANGUAGE: ENGWLISH"), not sure if actual typos, or an error when reading some ROM.
Anything else worth checking out other than the Unibios test?
I have 2 MVS boards, and the issue is different on each:
- Long board (I think it's a MV1F): boot up (classic green screen with artifacts) -> Neo Geo logo with music -> reboots to green screen (back to step 1)
- Short board (MV1B1): boot up (green screen with artifacts) -> small graphics glitch -> black screen (no reboot, stays here forever) EDIT: Fixed, now it reboots like the other one (I enabled dip switch 8, pause, by accident)
I've tried cleaning the contacts with isopropyl alcohol and cotton earbuds, also with a toothbrush, but nothing changed. Other games work perfectly on both bases.
I opened the cart and didn't spot anything obvious that could be the culprit. Some sides were quite sticky (despite the rest of the cart being pristine), presumably that's soldering flux used in the factory? I'm attaching some photos of the boards
Coincidentally, this week I got a Unibios 4.0 (which I need to install on the long board), and I've seen it has some diagnostics, so maybe I can use that to get more clues of what might be happening? With the regular BIOS I can access the service menu. The game shows up in the game list, although some settings have typos (e.g. it displayed something like "LANGUAGE: ENGWLISH"), not sure if actual typos, or an error when reading some ROM.
Anything else worth checking out other than the Unibios test?
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