M0100 mouse repair

[memphis]

Its an early USA model with the bulky square plug that that has lost one if its directions.

Moves vertically but not horizontally. Other mice work fine on the computer.

I gather that optical emitter/detector pain has failed.

The optical pairs are built into the internal roller assembly

Difficult to strip down it seems. So a swap of the entire internal assembly is necessary?

I have a few other working models.

One is a made in japan rounded corner plug type, and one is from a IIe.

But the internal structures are different so simple swapping of the assembly isn't possible.

Any tips? Thanks! :b&w:

 

[Brooklyn]

I have an M0100 mouse with the exact same problem. Looking for a solution. I tried re-flowing all of the soldered joint but it didn't help.

 

[Brooklyn]

The pointer jitters when you try to go left or right. So it's getting some signal, almost like it's telling the pointer to go left and right simultaneously

 

[techknight]

it should have detectors on both the left and right of the wheel, or a dual-detector in 1 package. It needs this to tell the system the direction rotation in the same plane. If one or both fails, it wont know what direction to go. And its usually the LED that fails. not the phototransistor.

if you replace the LED, you have to line it up exact or it wont move correctly.

 

[Brooklyn]

Thanks, this may be the issue but I have no idea where to get replacements without hacking another mouse. I check my ADB mouse and the sensor/led are different sized.

I also noticed if I move the mouse really quickly left or right it will move a little bit instead of just jittering there.

 

[uniserver]

my biggest issue with these old mice is the cord , the wires break apart inside from the movement of the mouse over the years, I just hack off about 6 inches up, reuse the rubber snubber, pull or drill the old/bad hunk of wire through it. Thread the trimmed mouse cord back through the snubber. Then strip / knot and solder the wires back to the mouse pcb. never had mouse guts them selfs go bad… well not yet

 

[Brooklyn]

I will check continuity of the wires

 

[Brooklyn]

That was it, LEFT signal wire was broken. I cut the line a few inches in and re soldered the wiring. It was a mild headache but now the mouse works good. Good call, I should've checked that first.

 

[uniserver]

:rambo:

awesome buddy!