-----------------
     | ====     ==== |
     |  2J3      2J4 |
     |               |           -----------
     |               |           |        "|
     |               |           |    3J2 "|
     |               |           |        "|
     |               |           |         |
     |               |           |        "|
     |               |           |    3J3 "|
     |               |           |        "|
     ---------|-----|-           ---|-----|-
     ---------|-----|---------------|-----|---------------
     |                                                   |
     |                                                   |
     |                                                   |
     |                                                   |
     |                                                   |
     |"  1J3                                             |
     |"                                                  |
     |                                                   |
     |"  1J2                                             |
     |                                                   |
     |                                                   |
     |                                                   |
     |                                                   |
     |"                                                  |
     |"  1J1                                             |
     |"                                                  |
     -----------------------------------------------------    
   

     -----------------
     | ==== = = ==== |
     | 10J3 | | 10J1 |
     |      | |      |  
     |   10J4 |      |  
     |        10J2   | 
     |               | 
     |               |   
     |               | 
     |               |  
     |               | 
     ----------------- 


     -----------------
     |               |
     |"              |
     |" 4J2          |  
     |"              |  
     |               | 
     |               | 
     |               |
     |               |   
     |               | 
     | 4J3      4J1  |  
     | ==      ===== | 
     ----------------- 


 
Connectors:
   Rom Board
   _________

2J2 - Power Input
2J3 - Coin Door Switches
2J4 - Sound Board Interface


   Interface Board
   _______________

3J2 - Player Panel (B)
3J3 - Player Panel (A)


   CPU/Video Board
   _______________

1J1 - Power Input
1J2 - Memory Protect Interlock
1J3 - Monitor Control


   Sound Board
   ___________

10J1 - Power Input
10J2 - Speaker
10J3 - Volume Control
10J4 - Sound Select


   Power Supply
   ____________

4J1 - AC Input
4J2 - Power Output
4J3 - Coin Door Power



Connector Pinouts:

1J1:
        1 - N/C
        2 - Ground (Blk)
        3 - Ground (Blk)
        4 - Key
        5 - +12vDC regulated (Gry-Yel)
        6 - N/C
        7 - +5vDC (Gry)
        8 - +12vDC Unregulated (Gry-Wht)
        9 - -5vDC (Orn)

1J2:
        1 - !Mem Prot (Red-Orn)
        2 - Key
        3 - N/C
        4 - N/C

1J3:
        1 - Red (Vio-Red)
        2 - Green (Vio-Grn)
        3 - Blue (Vio-Blu)
        4 - Ground (Blk)
        5 - Vert. Sync (Vio)
        6 - Horiz. Sync (Vio-Wht)
        7 - N/C



2J2:
        1 - Ground (Blk)
        2 - N/C
        3 - Key
        4 - +5vDC (Gry)

2J3:
        1 - Auto Up / Manual Down (Blu)
        2 - Advance (Grn)
        3 - Right Coin (Wht-Yel)
        4 - High Score (Wht-Gry)
        5 - Left Coin (Wht-Blu)
        6 - Center Coin (Wht-Grn)
        7 - Slam (Wht-Vio)
        8 - N/C
        9 - Key
        10 - N/C

2J4:
        1 - Key
        2 - PB1 (Grn-Red)
        3 - PB0 (Grn-Orn)
        4 - PB3 (Grn-Yel)
        5 - PB2 (Grn-Blu)
        6 - PB5 (Grn-Vio)
        7 - PB4 (Grn-Gry)
        8 - CB2 (Grn-Wht)
        9 - N/C



3J2:
        1 - Up stick (Orn-Wht)
        2 - N/C
        3 - N/C
        4 - N/C
        5 - N/C
        6 - N/C
        7 - N/C
        8 - N/C
        9 - Ground (Orn-Blk)

3J3:
        1 - Fire (Orn-Brn)
        2 - Thrust (Orn-Red)
        3 - Smart Bomb (Orn)
        4 - Hyperspace (Orn-Yel)
        5 - 2-Player Start (Orn-Grn)
        6 - 1-Player Start (Orn-Blu)
        7 - Reverse (Orn-Vio)
        8 - Down stick (Orn-Gry)
        9 - Inviso (Brn-Yel)
        10 - N/C



4J1:
        1 - 22.6vAC (Blk)
        2 - N/C
        3 - 22.6vAC (Gry-Grn)
        4 - N/C
        5 - 22.6vAC C.T. (Grn)
        6 - N/C
        7 - N/C
        8 - 20vAC (Gry-Yel)
        9 - 20vAC (Gry-Wht)
        10 - N/C
        11 - 11.5 vAC (Vio-Wht)
        12 - 11.5 vAC (Orn)

4J2:
        1 - -5vDC (Orn)
        2 - Key
        3 - +12vDC Reg. (Gry-Yel)
        4 - -12vDC Unreg. (Gry-Grn)
        5 - +12vDC Unreg. (Gry-Wht)
        6 - +12vDC Unreg. (Gry-Wht)
        7 - Ground (Blk)
        8 - Ground (Blk)
        9 - Ground (Blk)
        10 - Ground (Blk)
        11 - N/C
        12 - +5vDC (Gry)
        13 - +5vDC (Gry)
        14 - +5vDC (Gry)
        15 - N/C

4J3:
        1 - 6.3vAC (Yel)
        2 - 6.3vAC (Yel-Wht)
        3 - +27vDC (Red)
        4 - N/C
        5 - Key
        6 - Ground (Blk-Orn)



10J1:
        1 - N/C
        2 - +12vDC(Gry-Wht)
        3 - +5vDC (Gry)
        4 - N/C
        5 - Ground (Blk)
        6 - N/C
        7 - N/C
        8 - -12vDC Unreg. (Gry-Grn)
        9 - N/C

10J2:
        1 - Audio (Blk-Red)
        2 - N/C
        3 - N/C
        4 - Ground (Red-Blk)

10J3:
        1 - Key
        2 - PB1 (Grn-Red)
        3 - PB0 (Grn-Orn)
        4 - PB3 (Grn-Yel)
        5 - PB2 (Grn-Blu)
        6 - PB5 (Grn-Vio)
        7 - PB4 (Grn-Gry)
        8 - CB2 (Grn-Wht)
        9 - N/C

10J4:
        1 - IN (Red)
        2 - OUT (Blk)
        3 - Key
        4 - Shield (Audio shielding)