Mouse repair time!

[Matt_H]

Since the left mouse button on my mouse is barely operational, it's time to replace the microswitch. I opened up the mouse, and it looks so simple even I can do it!

The interesting part is that the mouse PCB has a provision to add a third mouse button. I had read that the 2-button A3000 pregnant mice were so designed (seems obvious since Commodore shipped a 3-button variant with the 3000UX), but I didn't know other Amiga mice had the same design feature. I'll probably add the third switch and figure out how to make a button out of it later.

The mouse itself is the one shipped with a lot of 600s, 1200s, and 4000s - arch-shaped with equal-sized buttons.

[Matt_H]

I thought I'd turn up a RadioShack part number for the microswitches in about 5 seconds, but I can't seem to find anything. This seems the closest, but it's surface-mount and Commodore's switches are through-hole.

If anyone's done this before, can you point me to the switch you used?

I'd like to avoid cannibalizing another mouse if possible.

[Matt_H]

Looks like Digikey part number EG1827-ND may be what I'm looking for.

[Matt_H]

I think I'm going to order a few different switches from Digikey. I appreciate the offer from AmigaKit, but I can't justify the expense of shipping from Europe for such a small item right now.

In the meantime, here's a photo of the mouse.

[Matt_H]

@ AmigaKit

Hmm, cheaper than I expected. I may reconsider. :-)

[Matt_H]

I ordered a "fun pack" of different switches from Digikey - 20¢ each. I'll report back when they arrive.

[Matt_H]

@ Daedalus & thread

I've successfully replaced the left button, but Daedalus, you seem to be right that additional wires are required for the third button.

The cable has all 9 wires present, but for some reason the middle button pins on the PCB seem to connect to ground and nowhere - not to pin 5, which seems to the middle button pin if the pinout I'm reading is to be believed.

Strange.