Credit detect Multicade Jamma

[ricky349]

Hi All,

Im wondering if anyone has ever come across a problem with a multicade. I have a Games Family 3000-1 in a Sega Naomi Jamma

I have told the multicade does not support freeplay so this is not an option

The Multicade boots fine, but when you press the credit button, no
credit is registered ; so tested it on a Super Streetfighter 2 Jamma instead and
the credit button registers fine

No coin mechanism has been fitted to the cab, do I need one?
Is there any reason the credit button works for others jamma's but not multicade?

All help most appreciated

Thanx

R

 

[muddymusic]

It's something to do with the way the gnd is connected on the cabs loom.
You could try linking pin 1 and 27 together. I had a similar issue on a multi-board and had to link several ground pins together - one for the controls and another that got the credit signal working. Was a bit of trial and error but got working eventually.

 

[ricky349]

Thank you very much, I will give this a try and let you know