MAKE TRAX (Williams, 1981)

At the very least the video
and power contacts are correctly identified.

36-pin edge connector

A       GND             1       GND
B       GND             2       GND
C       GND             3       GND
D       AUDIO OUT       4       AUDIO RET
E       +12 VDC         5       +12 VDC
F       COMP SYNC       6       
H                       7
J                       8
K       +5 VDC          9       +5 VDC
L       2P DOWN         10
M       2P UP           11      1P UP
N       2P START        12      1P DOWN
P       1P START        13      COIN
R       1P RIGHT        14
S       1P LEFT         15      RED
T       BLUE            16      2P RIGHT
U       GREEN           17      2P LEFT
V                       18