Sega-Naomi

I'm running a N1 MB with a Capcom I/O. It was run Powerstone just fine with no problems.



Today I received a Virtua Tennis cart. It passes all the tests and shows up as good. My MB passed all of its tests as well. Though, when playing for about 3-5 minutes it locks up and shows the message "Jamma I/O board error".



I'm running the +5v at 5.1. The 3.3 shows up at about 3.2...And the +12v is running at about 11.1v. I'd assume adjust the +12v but I can't individually adjust it. I'm testing everything at the MB.



Any ideas of where to go from here?

For some reason VT does not like the Capcom I/O i've tried it in many cabs thinking it was a PSU/voltage problem but was the same no matter what cab it was in,its been puzzling many people on here for years, just does not like the Capcom I/O's i'm afraid, nothing wrong with the cart i'm sure.

So who wants to buy a Virtua Tennis cart??? :smt005



Thanks chop for the info. That does make me feel a lot better though. But seriously, might as well sell it to someone who can use it who's not using a Capcom I/O and wants a game on the cheap. 40 bucks shipped in the US..I'll take my offer to the market area!

thats strange ive never had a problem with it, had it running for a couple yrs.everything i have thrown at the capcom i\o works for me.

Have you checked the Capcom I/O to make sure it's in 2 player mode?





Switch #3 needs to be set to the right.

I'll double check it right now. In the times it has let me play a game or two, I've been able to play with 2 players, so I'm assuming it's already in 2 player mode..



Just checked it and it was set to the right.