JAMMA Extension with kick harness support. Is there interest?

[the Goat]

I designed my own JAMMA extension setup. The prototypes just arrived. I'm wondering if I should order more and offer them for sale?

• A HAS/Minigun style kick harness port is included on each end.
• The power channels use a molex mini fit jr 8 pin connector
  • GND (3 pins)
  • 5 Volts (3 pins)
  • 12 Volts (1 pin)
  • -5 Volts (1 pin)
• Audio uses a 1/8 inch TPS (GND, Audio+, Audio-)
• Video uses a DE-15 (VGA)
• Everything else uses a HPDB50 (50 pin SCSI 2)

My idea for using SCSI 2, VGA and 1/8 TPS ports was to make it easy to buy pre-made cables of whatever length was required. The power cable is not off the shelf. I was able to get some power cables made by a seller on aliexpress for a reasonable price.

If I do sell these I think I would either sell bare PCBs or assembled PCBs. The buyer would need to source the cables themselves.

Let me know if you are interested.

 

[Escarioth]

Humm it sure looks interesting

You just have to buy the cables and its good to go?

 

[the Goat]

Humm it sure looks interesting

You just have to buy the cables and its good to go?

Correct.

 

[Escarioth]

got a few questions,

I'm currently using a jamma cab,
(only one have one upright and one cocktail) wich is the heavy MK2/KI2 cab.
pulling that thing is quite heavy and my wife can't do it XD
so i always have to be around if she wants to plays.

so an extension would be best :3 i could put the pcb besides the cab.

i'd like to use Qsound from some of my cps2 units, for that i need to mute mono.
But i also need mono sometimes too dependaing of the PCB.
is there a way on your adaptor to turn it on/off ?

 

[the Goat]

i'd like to use Qsound from some of my cps2 units, for that i need to mute mono.
But i also need mono sometimes too dependaing of the PCB.
is there a way on your adaptor to turn it on/off ?

Certainly, just leaving the audio cable disconnected on my boards will mute the audio.

I have not tested it yet, but I think running the audio cable from the CPS2 RCA outs directly to the audio input on the supergun/cabinet extension board would result in neo geo MVS style stereo.

 

[Escarioth]

Well im interesred for sure

 

[mugen_ketsueki]

How much your thinking of selling this product for?

 

[the Goat]

How much your thinking of selling this product for?

Based on a very rough calculation I think in the $80 ballpark for an assembled set of boards.

 

[Jagasian]

I am interested in assembled boards. How much will it cost? Also, can you share links for purchasing the cables?

 

[statix138]

If you end up producing these I would be in for two.

 

[the Goat]

I am interested in assembled boards. How much will it cost? Also, can you share links for purchasing the cables?

The VGA and Audio cables are regular off the shelf parts. The power cable is custom (so I cannot provide a link). Here are some examples of the correct SCSI 2 cable: 3ft ebay, 3ft amazon, 6ft monoprice

 

[Jagasian]

Who was the AliExpress seller you bought your power cables from?

 

[the Goat]

Who was the AliExpress seller you bought your power cables from?

I got the power cables from Shenzhen Rong Shi Tai Electronic Co., Ltd. They were a custom order based on their Custom Make GPU 8Pin PCI-E Male to Female Power Extension Cable. I asked them for custom lengths (1 & 2 meters), to substitute two male connectors of the appropriate type, and 16 AWG wires.