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Sega I/o Jamma converter issue - bridged Jamma edge?

reclaimer

reclaimer

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I just recently found this Sega I/o and noticed something… the Jamma edge has the fingers on either side of the key slot bridged together.

Aren’t these 12v and the coin counters?

Anyone know why this would be the case? I was planning on cutting that shit off and cleaning it up. Thanks!

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Yeah... that's the coin counter 2 and +12v. Weird.
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Maybe they were being wacky and running the coin counter lines to a light or something instead? Pure sabotage? ;)

Anyway, glad I noticed it in there - not something you expect to see.

(Maybe I should put up a poll for people to guess who I bought this from lol)
 
Some NAOMI games like Shikigami No Shiro 2 won't boot without coin counters, but I thought the correct 'fix' was a pull-up resistor to 5V, not a straight bridge to 12.
 
skate323k137 said:
Some NAOMI games like Shikigami No Shiro 2 won't boot without coin counters, but I thought the correct 'fix' was a pull-up resistor to 5V, not a straight bridge to 12.
Click to expand...
AH. That seems like a more likely case. I would still describe that as "wacky" :)
 
skate323k137 said:
Some NAOMI games like Shikigami No Shiro 2 won't boot without coin counters, but I thought the correct 'fix' was a pull-up resistor to 5V, not a straight bridge to 12.
Click to expand...

I think a lot of the coin counters in question are 12v. Still not sure that would 'fake' out the Naomi. But it might have been the intent.
 
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