SNK to JAMMA Adapter

Description

Allows you to use your SNK classic pre-JAMMA game, in a JAMMA cabinet or a super gun device.

SNK (Shin Nihon Kikaku) is a Japanese video game manufacturer best known for its Neo Geo platform and games.

Early in the 1980s,  SNK developed a number of games that were licensed by Rockola for distribution in North America, however later in the decade they released a number of games on their own. The updated hardware was the basis for a number of vertical shooters which shared a common pinout, but was no longer compatible with their earlier games.

For an adapter compatible with their early games, please see the page for the SNK Rockola to JAMMA Adapter here.

Images

Pinout

This adapter follows the following pinout scheme:

SOLDER SIDE PARTS SIDE
+5V +5V
COIN1 COIN2
SVC TEST
P1START P2START
P1UP P1DOWN
P1LEFT P1RIGHT
P1B1 P1B2
P1B3 NC
P2UP P2DOWN
P2LEFT P2RIGHT
P2B1 P2B2
P2B3 NC
GND GND
GND GND
-5V -5V
NC NC
VSYNC VBLUE
VGREEN VRED
SPK+ SPK-
+12V +12V
GND GND
GND GND

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

Compatible Games

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

The adapter has been tested with a genuine Alpha Mission board.

Note: Some games have different button mappings. Games that use 2 buttons may use JAMMA buttons 1 and 2 (Ikari Warriors), or buttons 2 and 3 (Alpha Mission and others).

Revision History:

Rev 1.0: Initial Design.

Specifications

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