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Everything posted by Fruktodlaren

  1. Greetings. Old forum lurker here in need of some part-specific information regarding the physical switch on the switched CX22 trak-ball. The following text is mostly a copy paste of an old post (edited to become shorter) I did in a FB group for trak-ball enthusiasts. I recently (Dec 2020) came into possession of a Pro-line CX22 Trak-ball in a mostly decomposed box. New as I am in the wonderful world of sphere-based XY position devices, I had no idea that I should have asked about the switch... Turns out it's one of those first units without the trackball/joystick option switch. That was a bummer for me to discover as I wanted to use it mainly as a trackball on my Vectrex. Edit: Then I was asking if there was a way to put that functionality back in. Someone pointed me in the direction of the CX22 schematic where the circuit with the switch is also showing. Link below. http://www.atarimuseum.com/ahs_archives/archives/files/videogames/consoles/7800/7800trakball/7800trakball-cx22-patch.gif Such a modification seems doable but is going to take some surgery to the PCB, but I'm not afraid of that. I ordered the missing components (that I didn't already had on hand in my parts box) from ebay. Mainly the inductor and the IC responsible for the switching of signals when the physical switch is flipped. Right now I am hung up on the actual switch. What kind and type of switch is it? Is it a four pole double throw switch? If anyone can shed some light on this trivial matter that somehow is holding me back from going ahead with the modification, I would appreciate it greatly.
  2. I recently got my hands one a Proline Trak-Ball in a mostly decomposed box. I got it because I wanted to use it for my vectrex. But joystick mode only does not do me any good in the trackball games. Is there a way to hack the trackball functionality back into this one, or should I rather try to trade it for a regular white bottom CX22 trackball with someone?
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