I needed to perform a trackball to joystick conversion on my CABAL PCB recently and figured I'd document the process here, in case anyone else needs to do it.
Information gathered from here: http://elgensrepairs.blogspot.com/2013/04/tad-cabal-trackball-to-joystick.html
Credit @caius - http://www.jammarcade.net/cabal-joystick-sub-board-reproduction/
I've recreated this PCB and am providing the Gerber files for free, so you can order and assemble it yourself:
Gerber files here: View attachment Gerber_PCB_CABAL.zip
Schematic:
Information gathered from here: http://elgensrepairs.blogspot.com/2013/04/tad-cabal-trackball-to-joystick.html
- 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)
Credit @caius - http://www.jammarcade.net/cabal-joystick-sub-board-reproduction/
I've recreated this PCB and am providing the Gerber files for free, so you can order and assemble it yourself:
Gerber files here: View attachment Gerber_PCB_CABAL.zip
Schematic:
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