What is it?

The MiniGun 2.5 is a Supergun that connects to the JAMMA connector of an arcade board and gives you clean video output and 2 neogeo controller inputs.

Why did you make it?

I didn't make it! This is an open source project that has a great following.

The below information is slightly modified from the forum the project is maintained from. I have added notes where needed.

Arcade PSU connection via Molex 6 pin Mini-Fit-Jr connector. Needs +5v for operation of the board, and the other voltages pass through to the arcade board. You may be able to use an ATX psu depending on the power requirements of your arcade board. I recommend the happ arcade power supply with the adjustable 5v knob.

COIN & SERVICE tactile switches.

• 2 x Neo-Geo style DB15 connectors for player 1 & 2 inputs. Follows Undamned pinout. You can connect a neogeo controller directly or use one of the converters for ps3, saturn, or snes controllers.
• Buttons 12345 on Jamma edge - Buttons 456 via kick harness connector. Buttons 4 & 5 may be toggled from the Jamma edge via a dips witch. Cable included for buttons 4, 5, and 6.
• 2 Video options, 8 Pin MINI DIN video and audio connector (Follows XRGB MINI / RGB MODDED NES / HAS pinout) or the 9 pin Mini Din compatible with Genesis 2.
• 3.5mm audio output connector which disables audio output from the MINI DIN when utilised.
• Speaker to line level audio conversion - DC blocked - No Jamma audio pin is ever grounded.
• MONO or STEREO (MVS) audio output. Selectable via a jumper.
• THS7374 based video circuit for RGB and SYNC signals. Buffered, attenuated and 75 Ohm impedance matched. Adjustable trimmer pots used to attenuate RGB levels. LPF may be enabled / disabled via a switch. Fixed resistor voltage divider used to attenuate SYNC.
• Power LED
• Voltmeter to monitor +5V
• OSSC safe
• Also works fine with a gbs-8200 to a computer monitor. You have to build a mini din 8 cable to do this, but the cost should be really low. I have made several. You can also order them from several places online. Ask in online forums where you can get a MiniDin video cable.
• I will also include a printed supplement that documents the settings on the board a little better so you don't have to dig through the forums as much.

Important: I did not design this board, I only assembled it (if you ordered it assembled). It has been tested on a fair number of arcade boards using a happ arcade power supply. Because there is so much that can go wrong, I assume no responsibility for damage done to your arcade boards or other equipment. If you are not OK with this, please don't buy from me. This board is considered one of the best supergun designs, but there are so many variables that could lead to damage.