Re: Help Needed: Problem w/Apple IIc KB

[Rubywand <rubywand@my-deja.com>]

Rick <rick@internet.net> writes ...

> I hope someone here cvan shed some light on a problem I'm having.  A
> coworker asked me to help fix an Apple IIc Keyboard problem he;'s
> having (I'm a support tech at work - IBM only).  Three of the keys
> when pressed display several erroneous characters on the screen.  The
> three keys are the "zero" the "minus" and the "plus" keys.  I hope I
> identified all them, they are the top row last numer (zero) and the
> two immediately to the right of the 0.  All the other keys work fine.
> Originally I thought it was "keybounce" but they don;t actually
> display the correct cjharacter and several display when pressed.
>
> Does anyoine have any ideas as to the cause?  I tried pulling the
> keycap and spraying air but it doesn;t really seem to be a dirt
> problem.  Is there an easy way to pull the case (I see several screws
> heads on the bottom) but can't seem to seperate the case to see if
> something is possibly shorting the keyboard perhaps.

 ....

     That sounds likely-- e.g. Coke or some other drink spilled on the
keyboard; or a bit of fine wire, foil, etc. got inside. Something else
to try is resocketing all socketed IC's-- one may have a pin making poor
contact.

     To open the case you may need to remove the rubber feet-- not sure
about this; but, it's pretty common to hide bolts under stick-on feet.



Rubywand


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