MAYHEM 2002
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 P3         P4             P2        P1           P5            P6
-----      -----         ------     -----        ----          ----
 1  +5V     1              1  SP     1            1             1
 2  +5V     2  GND         2  SP     2  SYNC      2             2  GND
 3          3  2 START               3  SYNC      3  CHK LEFT   3  2 UP
 4          4  COIN 2                4  GND       4  1 UP       4  CHK LEFT 
 5          5  SVC                   5  VID RED   5  CHK RIGHT  5  2 DOWN
 6  GND     6  1 START               6            6  1 DOWN     6  CHK RIGHT
 7  GND     7                        7  VID GN    7  1 LEFT     7  2 LEFT
 8          8  COIN 1                8            8  STUFF      8  STUFF
 9          9                        9  VID BL    9  1RIGHT     9  2 RIGHT
10  +12V   10                       10           10            10