woensdag 17 augustus 2011

Electronics, Wiring

Have to be carefull with this and not short circuit the board.

Last year I bought a 60 in 1 card for my original cabinet ( Time Pilot / Konami ). This card helped me to test the buttons and joystick since you don't have the trouble of (mis) configuring a mame engine. (and loose a lot of time).

The cabinet will be Jamma 'ready'. I like to have the oppurtunity to place a real board if I want to and stay close to an original cabinet..

what you need for this:

- A Jamma Harness
- A Jamma Harness pinout document
- Wires for ground. and Ebay some offer a daisy chain wire with clamps pre-attached.
- A joystick and buttons. 6 fire buttons, player I/II, credit button, Test Button, Service button
- A PSU ATX. A simple PC power supply will do. There are PSU's on ebay offered simular to the ones in the original cabinets.

To understand how to wire the microswitches this is a good source http://arcadecontrols.com/arcade_wiring.shtml basicly what it's all about is to place the Ground on the COMMON and the corresponding Jamma wire to the Normally Open.

The pinout, just an example there are lot on the internet. I had another one with the colors described but it was not a perfect match on the harness. It's not hard to figure out since the numbers and letters are printed on the connector (parts side, solder side)



Once hooked up to the connector power it on. To kickstart the PSU use this trick, find the green wire on the ATX connector and loop it to a black cable (pin 20 or 24)



powered on:
So fare the electronics outside of the cabinet. It helped understanding the Jamma Connector. In a next update all hardware and wires are build in the cabinet.

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