JAMMA to Irem Cabinet Adapter

Description

Allows you to play your JAMMA games in a cabinet wired according to the Irem classic pinout class.

Please confirm the power requirements of your game and that the pinout matches the wiring of your cabinet in the relevant sections below. This is especially important for cabinets that have less than 2 buttons and only one coin switch.

Images

Pinout

This adapter follows the following cabinet pinout scheme:

SOLDER SIDE PARTS SIDE
GND GND
+5V +5V
+5V +5V
COIN1 SVC
P1DOWN P1UP
P2DOWN P2UP
NC VBLUE
VGREEN VRED
P2B1 P1B1
SPK+ SPK-
+12V +12V
+12V +12V
VSYNC COIN2
COUNT2 NC
P1START P2START
P2B2 P1B2
P2RIGHT P1RIGHT
P2LEFT P1LEFT
COUNT2* COUNT1*
NC NC
GND GND
GND GND

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

* Coin counters are not connected.

Important: Your JAMMA game will not work correctly if it requires -5V power, not normally available in Irem cabinets.

Button and Switch Layout:

In most circumstances this adapter will work as intended with your cabinet without any modifications. Problems may occur playing some JAMMA games in a modified cabinet with less than 2 buttons, or only one coin switch present.

If the button order is wrong you may need to swap the wires going to the buttons behind the control panel. If a button doesn’t register at all, say only JAMMA button 2 works, you may need to run a jumper from button 2 to button 1 at the cabinet wire harness edge connector.

If the game can’t be coined up, say in a case where only COIN2 switch is wired in the cabinet, and the game only supports the COIN1 switch, you may need to swap the coin wires on the harness or potentially jumper them together to get the game to coin up.

Compatible Cabinets

This is the list of compatible cabinets that can be used with this adapter:

Revision History:

Rev 1.0: This is the currently available version.

Specifications

Board Size: 50mm x 112mm
Current Carrying Capacity: 5V – 12A, 12V-3A