Rampart, Atari 1991
------------------

Notes:

* There are 2 versions of Rampart:
    - 2 player version that is straight JAMMA and uses 
      joysticks to move pieces
    - 3 player version that uses trackballs to move pieces.

* Both version have all options set from the test screen

* In chatting with folks, game play of the 3 player version is much nicer
  than the 2 player version (game rocks, BTW)
  
* I believe that the Rotate buttons double as start buttons for the
  3 player version
  
* The following pinouts are for the 3 player version


            Solder Side            |             Parts Side
   ________________________________|___________________________________
               GND             | A | 1 |             GND               
               GND             | B | 2 |             GND
               +5              | C | 3 |             +5
               +5              | D | 4 |             +5
               -5              | E | 5 |             -5
               +12             | F | 6 |             +12
             - KEY -           | H | 7 |           - KEY -
        Coin Counter # 2       | J | 8 |      Coin Counter # 1
       Lock Out Coil # 2       | K | 9 |     Lock Out Coin # 2
           Speaker (-)         | L | 10|         Speaker (+)
                               | M | 11|          
          Video Green          | N | 12|        Video Red
          Video Sync           | P | 13|        Video Blue   
         Service Switch        | R | 14|        Video GND    
           Tilt Switch         | S | 15|          Test Switch
         Coin Switch # 2       | T | 16|        Coin Switch # 1
           C Rotate            | U | 17|          L Rotate
           C X Dir             | V | 18|          L X Dir
           C X Clk             | W | 19|          L X Clk
           C Y Dir             | X | 20|          L Y Dir
           C Y Clk             | Y | 21|          L Y Clk
           C Fire              | Z | 22|          L Fire
           R Fire              | a | 23|          R Rotate
           Spare               | b | 24|          Spare
           R X Dir             | c | 25|          R Y Dir 
           R X Clk             | d | 26|          R Y Clk     
               GND             | e | 27|             GND  
               GND             | f | 28|             GND  
 


For reference, Rampart uses the following pinouts to a standard Wico-style trackball:

1   Gnd
2   +5V DC
3   X Clock
4   X Direction
5   Y Direction
6   Y Clock

If you wire up a trackball and find that one of the directions is reversed, swap the Clock and Direction leads