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Fruktodlaren

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Posts 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. On 10/26/2019 at 4:40 PM, ITG33K said:

    So sad it took 10 years for someone to identify the rarity of the CX22 Proline Trak-Ball units.  And to think someone in this thread bastardized one of only 15,000 produced into a mouse mod.  *smh*

    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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