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geekhack Community => Input Devices => Topic started by: Nivek on Tue, 25 January 2011, 14:17:57

Title: 1990 logitech bullseye pinouts?
Post by: Nivek on Tue, 25 January 2011, 14:17:57

I've been having a hard time finding any information on this ancient trackball that I pulled from a 170 series macbook. Searching for the serial, 220247-01 rev-a, returns no results. It only has four connections so it really shouldn't be all that hard to figure out, but being that I'm rather new at modding and have little money, I can't afford to make mistakes.

Title: 1990 logitech bullseye pinouts?
Post by: microsoft windows on Tue, 25 January 2011, 15:24:46

Is this computer an  Apple Powerbook?

Title: 1990 logitech bullseye pinouts?
Post by: Nivek on Wed, 26 January 2011, 13:09:04

Yes, it's from a powerbook
Here's some pics
(http://i1103.photobucket.com/albums/g474/Nivekian_Konsolate/Picture003.jpg)(http://i1103.photobucket.com/albums/g474/Nivekian_Konsolate/Picture001.jpg)(http://i1103.photobucket.com/albums/g474/Nivekian_Konsolate/Picture002.jpg)

Title: 1990 logitech bullseye pinouts?
Post by: keyb_gr on Thu, 27 January 2011, 17:02:29

Same chip as here (http://www.decadecounter.com/vta/articleview.php?item=307). ADB interface, unsurprising for Apple. The connector carries the 4 signals, as needed for that, so you'll have to find out who's who. I'd say the electrolytic at the connector should tell you +5V and Gnd, the rest may take some poking around with a multimeter.

Do you have an ADB-USB adapter at all? They don't exactly seem to be growing on trees.

Title: 1990 logitech bullseye pinouts?
Post by: Nivek on Fri, 28 January 2011, 12:19:01

I wish I had an adapter, that would certainly make things easier. I guess I'll poke around some and find whats what... maybe I'll have to make one, or something. Thanks for the link too.