Sega on Galaxian Hardware to JAMMA Adapter

Description

Allows you to use your Sega Galaxian based pre-JAMMA game,s in a JAMMA cabinet or a super gun device.

In the early 1980s, Sega licensed a few games from other arcade developers, which they then manufactured and distributed. The hardware was based on a modified Galaxian board usually with additional rom and sound boards.

The pinout for these games varies somewhat from the original Galaxian pinout, changing the location of the pins responsible for controls and sound, and is completely different from the pinout used by the original manufacturer of the game.

Images

Pinout

This adapter follows the following pinout scheme:

SOLDER SIDEPARTS SIDE
GNDGND
GNDGND
+12V+12V
+12V+12V
SPK+AUDPOTIN
VSYNCVBLUE
VGREENVRED
GNDAUDPOTGND
NCP1DOWN
NCAUDPOTOUT
NCP1B1
P1RIGHTP1LEFT
P2STARTP1START
SVCTEST
COIN2COIN1
COUNT1NC
NCNC
COINRETNC
+5V+5V
+5V+5V
GNDGND
GNDGND

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

Compatible Games

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

The adapter has been tested with genuine versions of Sega Frogger and Sega Moon Cresta.

Revision History:

Rev 1.0: Initial Design.

Rev 1.1: Changes to the sound adjustment circuit. This is the currently available version.

Specifications

Board Size: 45mm x 112mm
Current Carrying Capacity: 5V – 12A, 12V-3A