I made a new Supergun PCB I call the
Parsec Supergun.
I've been working this project for the last 6 months. It's a new design Supergun PCB based on my personal preferences. I decided to make one after reading this thread for a while. For the last couple years I was making and selling a RGB to composite / s-video board based on the BH7236AF. I made some modifications to this circuit so it would work with JAMMA RGB signals, and it is working quite well.
I wanted to use a 24 pin ATX power connector for maximum power supply compatibility. An arcade power supply can also be used by modifying an ATX power extension cable. Uses a Texas Instruments PTN78000AAH regulator for -5v. This regulator costs $14 by itself, but is well worth it.
There is a 10 pin header receptacle for possible future video hat mounting. I may make a hat board with VGA style connector in the future.
I have 11 JAMMA arcade game PCBs in my collection I did the testing on.
Street Fighter (the original) was the only JAMMA board in my collection that didn't display a picture with composite or s-video. RGB video worked great with all games connected to my XRGB mini Framemeister. I do not own any other RGB video converters to test with.
The PARSEC v1.0 has the following features:
JAMMA, JAMMA + compatible
24 pin ATX power input connector (also works with 20 pin ATX)
Pushbutton on/off switch
(optional) onboard -5v regulator provides up to 1.5A
Power on/off switch for -5v regulator
LEDs indicating presence of +5v, -5v, +12v, and standby power
Built-in NTSC video converter
Genesis 2 A/V connector for RGB video
Composite video and s-video jacks
Audio output to 1/8" stereo line out jack or Genesis 2 A/V connector
Stereo / mono switch
Audio attenuation circuit with isolation transformers
Neo Geo controller ports for players 1 and 2 with standard supergun pinout
Credit, test, and service buttons
Kick harness connector
Buttons 4 and 5 on JAMMA connector can be disabled with DIP switches
Basic button remapping option using jumpers: "select" on Neo Geo controller connects to button 5 or can insert coin
Onboard RGB adjustment pots and/or a voltmeter can be added externally with minor modifications. I simply did not have any room left to mount these components on the main PCB.
I'm definitely making 10 Parsec Superguns. It is possible I may make more based on feedback.
Pricing will be $129 USD + shipping for the basic version and $139 USD to add the onboard -5v regulator.
If anyone is interested, please send me a PM. Thanks!


