On Mar 1, 12:13=A0am, "Michael J. Mahon"  wrote:
> Hatta wrote:
> > I picked up an Apple II joystick, model A2M2002.
> > The joystick works just fine, but the buttons
> > don't work. =A0
>
> > I can open up the joystick, and bridge
> > the connections and peek at the buttons
> > and see them work. So I know the connection
> > is ok.
>
> > When I press the buttons they click, so the
> > switches ought to be engaging. So I'm pretty
> > sure the switches are bad. They say "omron b3f"
> > on the back of them. =A0But there appear to be
> > many different types of these. =A0Does anyone
> > know what switches I can get to replace these?
>
> There's no need to guess whether the switches are working.
> You can test for continuity across the switches when they
> are pressed with a multimeter (under $10 and infinitely
> useful) or even with a battery, a resistor, and an LED.
>
> If you look at a schematic of the joystick and the pinout
> of the connector, you can check both switches without opening
> the case.
>
> -michael
>
> NadaNet and AppleCrate II: parallel computing for Apple II computers!
> Home page:http://home.comcast.net/~mjmahon
>
> "The wastebasket is our most important design
> tool--and it's seriously underused."

  He did say he bridged against the switch connections, and they
worked, so I would assume that the switches are bad.
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