Electrical Help Needed - Re-Wiring Gauntlet

MagicMarc-er

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I am totally rewiring a Gauntlet game that I bought without a PCB. I now have a working PCB and monitor but need to re-wire the whole thing. I realize this is a dumb electrical question but, here goes:

In addition to the two 110V isolated terminals, I have the following: 12V2A, 5V1A, GND, GND, 5V15A, FG. On the Gauntlet schematic, it says I should have the following going to the molex connector on the PCB: +Sense, +5V, +5V, GND, GND, -Sense. Now, I'm not sure what +/- Sense means and I'm also not sure which 5V terminals they are referring to since the power supply has 5V2A and 5V15A.

Second question: Going to the audio PCB, the schematic shows three wires coming from the power supply labeled 12AC, CT, and 12AC. Not sure what CT is trying to reference.

Any help would be appreciated and, again, sorry for the dumb questions.
 
This is why I just wired my own rescued gauntlet for Jamma and just made an adapter for the board. Don't know if that's just being lazy or not but it worked perfectly for me, and I swap out Jamma games as needed with a double-Jamma adapter as well.
 
I am totally rewiring a Gauntlet game that I bought without a PCB. I now have a working PCB and monitor but need to re-wire the whole thing. I realize this is a dumb electrical question but, here goes:

In addition to the two 110V isolated terminals, I have the following: 12V2A, 5V1A, GND, GND, 5V15A, FG. On the Gauntlet schematic, it says I should have the following going to the molex connector on the PCB: +Sense, +5V, +5V, GND, GND, -Sense. Now, I'm not sure what +/- Sense means and I'm also not sure which 5V terminals they are referring to since the power supply has 5V2A and 5V15A.

Second question: Going to the audio PCB, the schematic shows three wires coming from the power supply labeled 12AC, CT, and 12AC. Not sure what CT is trying to reference.

Any help would be appreciated and, again, sorry for the dumb questions.

You can leave the +SENSE and -SENSE un-connected if you want. They are simply connected (on the PCB) to the +5V and GND lines, to provide feedback to the original power supply, which which used it for the regulation setpoint. Your PS doesn't work that way, so you can leave them out. [OR, you could connect +SENSE to the +5 supply, and -SENSE to the GND... to provode another power and ground path to/from the PCB]

Don't use the 5V 2A supply on the new PS, use the 5V 15A one. 2A may or may not be enough for the PCB... I'd just leave it unused.

CT stands for "center tap". It is a tap (i.e. a wire coming out of the transformer) in the middle (center) of the 12VAC secondary winding. It is probably used as a ground reference, and to be able to do full-wave rectification on the PCB with only 2 diodes. I'd have to look at the schematics...
 
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This is why I just wired my own rescued gauntlet for Jamma and just made an adapter for the board. Don't know if that's just being lazy or not but it worked perfectly for me, and I swap out Jamma games as needed with a double-Jamma adapter as well.

You know, whoever had the game did wire it for Jamma but half the wires were later cut so I decided to get a fresh start. At least I'll be able to swap to a Gauntlet II if I want.

By the way, anyone know what "FG" on the power supply means?
 
Not sure what board set you have but a gauntlet 2 will open the door for the "multi-gauntlet" hack so you can switch between the games on one board. I'm not positive but I don't think this can be done on the G1 board.

Good luck...
 
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