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| Mac Plus M0100 mouse only moves horizontally |
Posted by: clpo13 on 2018-09-22 15:01:59
I picked up a Macintosh Plus the other day. It boots just fine, but the mouse that came with it (model M0100) doesn’t move vertically. Horizontal movement and the button work, though.
I cleaned the mouse thoroughly inside and out and confirmed continuity of the mouse wire and circuit paths on the mouse board, per this post. Swapping the X and Y wire pairs resulted in the capstans controlling the opposite directions as expected but vertical still didnt work, while horizontal still did, so it’s not the sensors. Now I’m at a loss where to go from here, since everything on the mouse seems to be okay.
Could the problem be with the computer? How would I go about diagnosing and fixing that?
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Posted by: techknight on 2018-09-22 19:22:30
Could be the LED emitter for that axis. use an infrared camera to check.
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Posted by: Juror22 on 2019-01-30 17:37:14
I have this issue as well, but the vertical works and the horizontal does not.
Like clpo13, the issue is seen on a Mac Plus that otherwise works normally.
Since I have multiple machines and mice, I verified that two, separate, known working mice demonstrated this same behavior on the machine in question, so it is definitely a problem with the Mac and not the mouse. All I found in the dead Mac Scrolls were fixes for mice issues. Im looking through Inside Macintosh and it gives a place to start looking (hardware, III-29) but if anyone has encountered this problem already and has a fix, let us know.
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Posted by: SE30_Neal on 2019-01-31 13:48:16
Dry joint or rusty/dirty mouse socket maybe.
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Posted by: Johnnya101 on 2019-01-31 14:01:48
Bad cable? Try flexing it and moving the mouse.
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Posted by: clpo13 on 2022-09-12 12:17:54
Well, almost four years later and I finally figured out what was going on. I don't know how much this will help anyone else running into a similar problem, but for me it was simply a broken trace on the logic board between pin 9 of the mouse port and the nearest RC filter. Once I repaired the trace, the mouse worked exactly as expected. |
Posted by: Pushpull76 on 2022-09-14 05:49:41
Well, almost four years later and I finally figured out what was going on. I don't knoDidw how much this will help anyone else running into a similar problem, but for me it was simply a broken trace on the logic board between pin 9 of the mouse port and the nearest RC filter. Once I repaired the trace, the mouse worked exactly as expected. Did you work until today only with the horizontal movement? I can feel your pain 😢 |
Posted by: clpo13 on 2022-09-16 09:58:08
Did you work until today only with the horizontal movement? I can feel your pain 😢 You can do a lot with keyboard shortcuts! But no, I shelved it until I came across a known-good mouse recently, and it got me thinking about the problem again. |
Posted by: Pushpull76 on 2022-09-16 12:28:14
You can do a lot with keyboard shortcuts! But no, I shelved it until I came across a known-good mouse recently, and it got me thinking about the problem again. 🙂 |
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