Jamma connector
Games: 1943,Ajax,Ameridarts,Aqua Jack,Assault,Bad Dudes,Badlands,BattleWings
(B-wings),Bermuda Triangle,Bio-Ship Paladin,Black Tiger,Blades of Steel,Blaster,
Blasteroids,Blockout,Blood Warrior,Bloody Wolf,Bootcamp,Bottom of the 9th,
...More to be added


            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
   ----------------------------|---|---|-------------------------------
           2P  Start           | U | 17|          1P  Start          
   ----------------------------|---|---|-------------------------------
           2P  Up              | V | 18|          1P  Up
   ----------------------------|---|---|-------------------------------
           2P  Down            | W | 19|          1P  Down         
   ----------------------------|---|---|-------------------------------
           2P  Left            | X | 20|          1P  Left
   ----------------------------|---|---|-------------------------------
           2P  Right           | Y | 21|          1P  Right
   ----------------------------|---|---|-------------------------------
           2P  Button 1        | Z | 22|          1P  Button 1
   ----------------------------|---|---|-------------------------------
           2P  Button 2        | a | 23|          1P  Button 2
   ----------------------------|---|---|-------------------------------
           2P  Button 3        | b | 24|          1P  Button 3        
   ----------------------------|---|---|-------------------------------
                               | c | 25|           
   ----------------------------|---|---|-------------------------------
                               | d | 26|               
   ----------------------------|---|---|-------------------------------
               GND             | e | 27|             GND  
   ----------------------------|---|---|-------------------------------
               GND             | f | 28|             GND  
   --------------------------------------------------------------------