Pinouts for Atari Steeple Chase (1975):
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Typed up by 
Andy Welburn - 10th April 2000
http://www.willowsp.u-net.com/andy/arcade.htm
warlords@ukvac.org.uk


This info was obtained from a original Steeplechase 
Operations manual.

Do bear in mind that this game runs on a Black + White
monitor, so you'll have to work out some kind of hack
before you can convert it to JAMMA ;)



44-pin edge connector
----------------------------------------------------
     GND            | 1  | A  |    GND
     GND            | 2  | B  |    GND
     16v AC         | 3  | C  |    16v AC
     16v AC         | 4  | D  |    16v AC
     N/C            | 5  | E  |    N/C
     Lamps 2 and 5  | 6  | F  |    N/C
     Lamps 3 and 6  | 7  | H  |    N/C
     Lamps 1 and 4  | 8  | J  |    N/C
     JUMP SW 5      | 9  | K  |    JUMP SW 4
     JUMP SW 6      | 10 | L  |    JUMP SW 2
     JUMP SW 1      | 11 | M  |    JUMP SW 3 
     ANTENNA        | 12 | N  |    COIN SW 1
     COIN SW 2      | 13 | P  |    N/C
     START SW       | 14 | R  |    N/C
     AUDIO (+)      | 15 | S  |    N/C
     N/C            | 16 | T  |    COIN COUNTER
     GND            | 17 | U  |    GND
     COIN COUNTER   | 18 | V  |    N/C
     25v AC         | 19 | W  |    25v AC
     25v AC         | 20 | X  |    25v AC
     VIDEO          | 21 | Y  |    VIDEO GND
     GND            | 22 | Z  |    AUDIO (-)





All info supplied above is accurate to my knowledge, and i accept 
full responsibilty if your incompetance results in a blown 
board/monitor/house fuse/mind.

All enquiries about sueing me should be forwarded to the above email
address where i will invite you to kiss my big fat juicy grits.



enjoy! ;)