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Why JAMMA?

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RayB:
I'm going for JAMMA for my cab (with a JPAC) but what I'm confused about is how to make it still work with JAMMA PCBs...

See I keep reading you need to remove (or not power) the arcade switching power supply, because A. You don't want power going to the JPAC, and B. The PC has its own power supply.

So what then, when i want to connect a JAMMA board in there... Seems like a pain in the butt to have to rewire the original power supply every time...

What do most people do in this situation?

Fat_Trucker:
I think (don't quote me) in most cases its a simple process of just disconnecting a connector from the unit?.

If you want to convert back I think you just plug it back in. I'm converting an Electrocoin Xenon and all the wiring going into the supply seems to be via these sorts of connectors.

If not it would probably be an easy job to cut the wires and install a connector in between for easy reconnnection, whatever sort of supply it is.

One thing I'm not sure of with mine is whether or not I need to leave the earth connected to the unit?. I don't know if it is dedicated for the power supply or if anything else is earthed through it. Will probably err on the side of caution and leave it seperately connected.

paigeoliver:
You can leave the original power supply wired, just wire it an on off switch. It needs to be OFF because the j-pac provides no load and a switching power supply run with no load will burn up eventually, some instantly, some later.

SirPoonga:

--- Quote from: RayB on February 24, 2005, 10:17:31 am ---I'm going for JAMMA for my cab (with a JPAC) but what I'm confused about is how to make it still work with JAMMA PCBs...

See I keep reading you need to remove (or not power) the arcade switching power supply, because A. You don't want power going to the JPAC, and B. The PC has its own power supply.

So what then, when i want to connect a JAMMA board in there... Seems like a pain in the butt to have to rewire the original power supply every time...

What do most people do in this situation?


--- End quote ---

Wouldn't a multijamma unit solve this problem?

RayB:

--- Quote from: SirPoonga on February 24, 2005, 04:58:41 pm ---Wouldn't a multijamma unit solve this problem?

--- End quote ---

Too expensive, and the arcade power supply would still be sending power when the multi-unit was switched to the J-PAC.


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