MvC2 cart not working properly
Posted: Fri Sep 03, 2010 5:31 pm
I'll start by saying I have very little arcade experience outside of this cab
It's a naomi 1 system running MvC2 w/ capcom IO. I think it was a jamma cab previously, from what I understand reading the forums. I picked it up off craigslist about 4 years ago for my office.
It had some problems with freezing during play in the past so I turned up the +5 slightly and it went away. It froze a bit more later on so I gave it a bit more +5 and it went away. Eventually the +5 pot was turned all the way to the max
Lately it has been freezing at a different point (after character selection right before the match starts, which I assume is when the 3d engine actually kicks on). I turned up +3.3 slightly and it went away for a day, then came back
Yesterday the naomi was continually rebooting and not getting into game at all. I turned down +3.3 slightly and it booted into MvC2, but no controls would work (p1 and p2 start did nothing)
I booted into test mode and all controls worked fine, both in naomi test and cart test modes.
I shut the whole thing off and finally brought in a multimeter.
My +5 was going to the IO at +5.7, so I turned it down to +5.1 (which I've been told is the correct setting). I could not find the correct pin to look at in the jamma connector to check the +3.3
At naomi the +5 was at ~5.2, so I turned the psu down until naomi was getting 5.1 (i assumed capcom io was a little less sensitive than naomi).
+3.3 was coming in right at 3.328. Adjusting the 3.3 on PSU had no effect at naomi
+12 was ~11.7
Doing a rom test on the cart showed most were coming in bad
IC17 GOOD
IC18-IC21 BAD
IC22 GOOD
IC23-24 BAD
IC25 GOOD
IC26 BAD
IC27 GOOD
IC28-32 BAD
So what do I do now?
It's a naomi 1 system running MvC2 w/ capcom IO. I think it was a jamma cab previously, from what I understand reading the forums. I picked it up off craigslist about 4 years ago for my office.
It had some problems with freezing during play in the past so I turned up the +5 slightly and it went away. It froze a bit more later on so I gave it a bit more +5 and it went away. Eventually the +5 pot was turned all the way to the max
Lately it has been freezing at a different point (after character selection right before the match starts, which I assume is when the 3d engine actually kicks on). I turned up +3.3 slightly and it went away for a day, then came back
Yesterday the naomi was continually rebooting and not getting into game at all. I turned down +3.3 slightly and it booted into MvC2, but no controls would work (p1 and p2 start did nothing)
I booted into test mode and all controls worked fine, both in naomi test and cart test modes.
I shut the whole thing off and finally brought in a multimeter.
My +5 was going to the IO at +5.7, so I turned it down to +5.1 (which I've been told is the correct setting). I could not find the correct pin to look at in the jamma connector to check the +3.3
At naomi the +5 was at ~5.2, so I turned the psu down until naomi was getting 5.1 (i assumed capcom io was a little less sensitive than naomi).
+3.3 was coming in right at 3.328. Adjusting the 3.3 on PSU had no effect at naomi
+12 was ~11.7
Doing a rom test on the cart showed most were coming in bad
IC17 GOOD
IC18-IC21 BAD
IC22 GOOD
IC23-24 BAD
IC25 GOOD
IC26 BAD
IC27 GOOD
IC28-32 BAD
So what do I do now?