Jamma -5v question.

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Shion
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Jamma -5v question.

Post by Shion »

So, I just found out that the -5v pin on my Jamma harness isn't connected. My Batsugun runs fine, and I read that 90% of all games work without this -5v thingy.

I know very little about wiring and power, otherwise I'd just wire it right now..
So the question is, is it worth trying to connect this pin? Or should I be fine just leaving it like this.
I'll be getting my Esp II board soon, and I don't want to blow it up because of a hardware problem ><
neorichieb1971
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Post by neorichieb1971 »

Its impossible to blow anything up with -5 not connected. Basically anything on the PCB that runs on -5 will not run, whilst the rest of the game will. This could have all sorts of effects like showing a black screen, lack of audio and other such peculiar output. But it won't do any harm.

From older threads I have read, Double Dragon runs an audio chip from -5, but apart from that I couldn't actually name one game that uses it.

Neo geo MVS has it terminated, Cave games don't use it either. I think you'll be ok.
This industry has become 2 dimensional as it transcended into a 3D world.
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Shion
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Post by Shion »

Alright, thanks for the heads-up. I'll just see how it goes then once my board is here :)
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dpful
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Post by dpful »

rastan uses -5v
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