MAIN BOARD

 P1-MONITOR   P2       P3 POWER          P4 COIN,SVC,   P5  PANEL
 --           ---     ----------         ---1&2 START  -----
 1            1 SP     1  +5V            1             1
 2            2 SP     2  +5V            2             2
 3                     3  +5V            3  2 START    3
 4                     4  KEY            4  COIN       4
 5                     5  GND            5  SVC        5
 6                     6  GND            6  1 START    6
 7                     7  GND            7  COIN       7
 8                     8  GND            8             8
 9                     9                 9             9
10                    10  +12V          10            10

                   MEMORY EXPANSION BOARD
 
 J1 POWER    J3 N/U   J4 CONTROL PANEL    J5 T.A.G. BOARD    J6 N/U
 --------    ------   ----------------    ---------------    -------
 1  +5V                               
 2  +5V
 3  +5V
 4  KEY
 5  GND
 6  GND
 7  GND
 8  GND
 9
10  +12V

 DIAGNOSTICS
 -----------
    WITH GAME RUNNING IN ATTRACT MODE, HOLD THE ONE PLAYER START BUTTON
AND PRESS AND RELEASE THE SVC SWITCH. RELEASE START BUTTON.
    THE ONE PLAYER START BUTTON SELECTS THE DESIRED FUNCTION. THE TWO
PLAYER START BUTTON ENTERS IT. SELECTING RESTART RETURNS TO ATTRACT MODE.