Lock ‘n’ Chase to JAMMA Adapter

Description

Lock ‘n’ Chase was developed by Data East and released in arcades in Japan in 1981. In North America the game was licensed for distribution by Taito. It features game play which was likely inspired by the similar games of that period, for example Pacman and Mouse Trap, where you clear the maze by eating dots and have the ability to control gates which prevent the enemy from catching you.

Lock ‘n’ Chase was released at least a year or two before games from the DECO Cassette library like Burger Time and Bump ‘n’ Jump started to appear as dedicated ROM boards. While those later Data East games have a more standardized pinout, the pinout for Lock ‘n’ Chase is unfortunately unique.

This game uses a difficult to source power plug / connector. This adapter comes with an substitute that consists of 3 separate plugs that can be used on this connector.  Care must be taken however to ensure that the connection is made correctly and it the right order. Please refer to the pinout section for more info.

Images

Included power (not the separate plugs) and video cable.

Pinout

This adapter follows the following pinout scheme:

Main Edge Connector
PINFUNCTION
+12V+12V
+5V+5V
GNDGND
NCNC
NCNC
COIN1COIN2
NCNC
P1STARTP2START
NCNC
P1B1P2B1
P1DOWNP2DOWN
P1UPP2UP
P1LEFTP2LEFT
P1RIGHTP2RIGHT
SPK+NC
SPK-GND
GNDGND
GNDGND

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

Power Connector
PINFUNCTION
1+5V
2+5V
3+12V
4-5V
5GND
GAP
6GND

Video Connector

PINFUNCTION
1VSYNC
2NC
3VGND
4VBLUE
5VGREEN
6VRED

Important: The power cable included with this adapter is a replacement cable that does not have the original style connector, but provides a functional substitute. Care must be taken to ensure this cable is connected properly, or damage to your board may result. Here is the information on how to connect this adapter to your board.

Compatible Games

This is the list of games that you may be able to use with this adapter:

The adapter has been tested with a genuine Lock ‘n’ Chase board.

Revision History:

Rev 1.0: Initial Design.

Specifications

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