Hardware

Pull up resistor board (back). The DB25 connects on the left and the pachi on the right. All the resistors are 6K8 ohm.

Pull-up resistor board (front). The DB25 connects on the left and the pachi on the right. All the resistors are 6K8 ohm.

The connector for the pachi was made by melting two CD-ROM audio cables together and filing it down. Pin 1 is on the left in this photo.

The diode board with 5 1N4148 signal diodes on pins 1-5 with pin 6 connected directly (ground). Pachi connects to the left side in this photo. The board was made to sit outside the machine for quick inspection of any blown diodes.

The complete first version of the test cable... Crude, but it worked.

Plugged in to the Dance Night relay board.

The schematic for the cable. This was created in MS Paint... So it's crap.