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| PowerBook 180 trackball stopped working after reassembly |
Posted by: luRaichu on 2025-07-17 07:14:42
Well, I made the Bad Mistake of leaving my PowerBook outside and it'd got rained on a bit with the cover closed.
I disassembled it and dried the motherboard, daughterboard, and RAM expansion card. Luckily there was no water on the right side where the floppy and hard drive lives.
When taking apart the shell half the interconnect cable I rebuilt last year came off the interconnect board so I had to reattach it. Now everything works except for the trackball. I know it jacks in through a flat flex cable on the keyboard, but all keys work.
Does the trackball have its own lines on the interconnect cable, or is it multiplexed on the same lines as the keyboard? I'm just trying to figure out whether the trackball or interconnect cable is bad |
Posted by: demik on 2025-07-17 10:54:42
It has its own "line" but it's really the common ADB data line. Has nothing to do with the keyboard matrix. The trackball is basically the same as a mouse but upside down in this series
Is it visible with ADB parser or equivalent ? |
Posted by: Shaddam IV on 2025-07-18 01:05:16
Is the trackball's flex cable plugged in? It's a flex cable that comes from the keyboard and needs to be slotted into a small connector on the trackpad. I've forgotten to do that several times when dis- and reassembling 1xx powerbooks. Might be worth checking. |
Posted by: luRaichu on 2025-07-18 05:53:07
Yes I checked that cable. I'll wait until the SCSI gender changer arrives so I can mount the PowerBook hard drive on my PC and get ADB Parser on there |
Posted by: Shaddam IV on 2025-07-18 06:10:09
and if you remove the track ball and move the roller with your finger? |
Posted by: luRaichu on 2025-07-18 07:02:19
Nope |
Posted by: Shaddam IV on 2025-07-18 09:18:58
mouse click? |
Posted by: luRaichu on 2025-07-18 11:38:26
No. Nothing. Here’s what ADB Parser says |
Posted by: Arbee on 2025-07-28 10:44:01
That's odd. If the trackball appears in ADB Parser then ADB communications is working, as far as I'm aware. The 180 isn't like the 150 and the Duos where the power manager can spoof ADB devices. |
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