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TAD Cabal Trackball To Joystick Conversion

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Share any logs or helpful information you may have to repairs of arcade PCBs, Monitors etc

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  • TAD Cabal Trackball To Joystick Conversion

    http://elgensrepairs.blogspot.dk/201...-joystick.html

  • #2
    Good work, as usual.

    I have a Cabal PCB that has the Joystick Sub board, and can verify that the 2 enable pins of the 74LS244 are indeed connected to pin 15 of the daughterboard.

    My board also has the 2 extra hookup wires on the edge connector.
    Last edited by yohansen; 9 April 2013, 01:57 PM.

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    • #3
      Resurecting an old thread...

      Just performed the conversion and it went smoothly, works great.

      I plan on drawing up a proper schematic and clearing a few things up.
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      • #4
        Actually made a small batch of kits a while back with a proper PCB, ROMs, etc.
        https://m.facebook.com/story.php?sto...37999229703756

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        • #5
          Here's my contribution to the marvelous work of [MENTION=8767]Elgen[/MENTION]

          My intent is to simplify and better document the process for anyone wishing to perform this conversion.
          • You will need 4 x 27512 EPROMS and a suitable eraser / programmer
          • 1 x LS74244
          • Pin connector headers, male, 2.54mm pitch
          • ROMS 6, 7, 8, 9 on the CABAL PCB need to be removed and replaced with ROMS from the CABAL WORLD JOYSTICK ROMSET
            • CABAL ROM 6 = 10.6j
            • CABAL ROM 7 = 11.6h
            • CABAL ROM 8 = 12.7j
            • CABAL ROM 9 = 13.7h
          • The 2 socketed D4701AC's on the main CABAL PCB (they're near the Jamma connector) need to be removed and replaced with the JOYSTICK SUB PCB
          • For the roll feature, run a patch wire from Jamma pin 15 to Jamma pin 24 (TEST SWITCH TO P1B3) & Jamma pin R to Jamma pin b (SERVICE SWITCH TO P2B3)


          Below is the original PCB as designed by TAD:

          Click image for larger version

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          This is my recreation of it:

          Click image for larger version

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          You can download the Gerber files and have this PCB produced here: CABAL-JOY-SUB-GERBER.zip

          Schematic:

          Click image for larger version

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          Last edited by Frank_fjs; 1 June 2019, 03:55 PM.
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