SNES Mouse in Need of Help

[Wellington2k]

Hello!

I recently bought Mario Paint with an SNES Mouse. It was all working fine when, suddenly, while moving the mouse over the Y-axis, the mouse would become jittery and skip along the screen. I tried cleaning the ball inside and the rollers, but to no avail. So I tried moving the rollers with my finger. The X-axis worked fine, but the Y-axis still is jittery. Something must be wrong with the one roller.

Any help?

EDIT: Now the Y-axis just moves very slowly.

 

[Another World]

it is very easy for little bits of dust to form lines of dust and wrap around the rollers. i used an eraser to clean out everything and then compressed air to finish the job.

-another world

 

[zxieus]

The problem lies with the encoder. You need to disassemble the mouse (2 screws at the front) and check the encoder wheels they sit at the end of the rollers and pass through the encoders giving the mouse movement (use a flat bladed screwdriver at the end of the axle) make sure they have clean and unblocked slots in the wheels and that theres no dust build up in the sensors. Also make sure that the rollers move freely by cleaning the axles

 

[Wellington2k]

The problem lies with the encoder. You need to disassemble the mouse (2 screws at the front) and check the encoder wheels they sit at the end of the rollers and pass through the encoders giving the mouse movement (use a flat bladed screwdriver at the end of the axle) make sure they have clean and unblocked slots in the wheels and that theres no dust build up in the sensors. Also make sure that the rollers move freely by cleaning the axles

Well, I just took the whole thing apart and cleaned the rollers, the sensors and everything else. Nothing changed.
Anything else to try?

 

[Foxi4]

To verify if this is a matter of the ball, the rollers or some internal damage, I'd remove the rubber ball from the mouse and manipulate the rollers manually. If the axis jitters as well then it might be simple wear and tear on the mechanical parts, if not then the rubber ball must've changed its characteristics as time passed and no longer rolls the rollers as it's supposed to.

 

[Wellington2k]

It does the same thing without the ball.

 

[Foxi4]

It does the same thing without the ball.

In that case, follow zxieus's advice and make a more in-depth search for the source of your problem - cleaning the rollers alone won't do, it seems.

 

[zxieus]

Move it around with the top off to make sure that the rollers are moving freely if they are spinning properly it is possible that you have a bad or dirty sensor, try wedging some cotton wool in there with a cocktail stick to clean the gaps

Sounds like a Bad sensors/encoder though probably needs replacing