Exidy to JAMMA Adapter

Description

Allows you to play your early 80s Exidy games in a JAMMA cabinet or a supergun device.

Exidy System V1 was the company’s first common arcade video game hardware platform, used mostly for driving games in the late 70s. This was followed by System V2 used in many of Exidy’s maze type games in the early 80s, and then System 440 for shooting type games later in the decade.

System V2 hardware consists of either a 2 board set… a logic and a sound / video board, or a 3 board set… a logic, sound and video color board. This adapter is compatible with both types of System V2, but not with System V1 or System 440 which isn’t suited for JAMMA controls.

This adapter includes the required 44 main edge connector, an additional 30 pin power / sound edge connector and wire harness, and a 10 pin video cable. Exidy games output RGB video with positive composite sync, which may not be compatible with your monitor, so this adapter provides a switchable built-in sync converter to make the video signal 100% JAMMA compatible.

Images

Audio power 30pin edge connector harness and 10 pin video harness is included!

Pinout

This adapter follows the following pinout scheme:

Main Edge Connector

SOLDER SIDE PARTS SIDE
NC NC
NC NC
NC NC
NC NC
COIN1 P1DOWN
P1UP P1B1
P1LEFT P1RIGHT
P2START P1START
NC NC
NC GND
+12V GND
-5V GND
NC GND
+5V GND
+5V GND
+5V GND
+5V GND
+5V GND
NC GND
NC GND
COIN2 GND
NC NC

(PCB edge connector facing away, list is ordered right to left)

Power / Sound Edge Connector (30 Pin)

SOLDER SIDE PARTS SIDE
GND GND
+12V +12V
-12V* -12V*
-12V* -12V*
-5V -5V
+12V +12V
SPK+ SPK+
+5V +5V
SPK- SPK-
+12V (NC) +12V (NC)
-5V (NC) -5V (NC)
-12V (NC) -12V (NC)
-12V (NC) -12V (NC)
+12V (NC) +12V (NC)
GND (NC) GND (NC)

(PCB edge connector facing away, list is ordered right to left. * -12V is not available with JAMMA so -5V is used instead. Requires a power supply with at least 1A on the -5V rail.)

Video Connector (10 Pin)

PIN VIDEO FUNCTION
1 RED
2 GREEN
3 BLUE
4 POS CSYNC
5 POS HSYNC
6 POS VSYNC
7 GND
8 GND
9 NC
10 NC

Compatible Games

This adapter should be compatible with the following Exidy games:

* The adapter has not been tested with these games and may not be compatible with JAMMA due to unique controls.

Revision History:

Rev 1.0: Initial Design.

Rev 1.1: Changes to video sync inverter circuit.

Specifications

Board Size: 50mm x 118mm
Current Carrying Capacity: 5V – 12A, 12V – 3A, -5V – 3A