5200 Trackball Schematic

[DanBoris]

I finally got around to tracing the circuit for the 5200 Trackball controller and have posted it on my web site http://atarihq.com/danb in the 5200 section.

 

It's actually a pretty cool circuit that converts the speed of the balls rotation (derived from digital encoder wheels like in a mouse) into an analog voltage level which is fed to the console. The result is that the speed the ball is rolled in a specific direction is analagous to the distance you push the stick in the direction.

 

Dan

[Eduardo]

Hey Dan:

 

Great work! You saved me a ton of work trying to figure it out.

 

Last year I found a trashed Trackball for the 5200 but I didn't pick it up because I couldn't figure it out what was wrong with it. I think that this info will be helpful.

 

You make it look so easy.

Congrats.

[BigO]

I was just looking for this information and wouldn't ya know it, DanB comes through again.

 

Thanks Dan.