Computer Hardware keyboard stops working

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Subject Author Date
keyboard stops working bob 11-15-06
Posted by on November 15, 2006, 10:06 pm
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Sometimes my keyboard stops working. If I unplug it and plug it back
into my PC, it works again though.

Anyone know why this happens and/or a permanent remedy for this?


Posted by Mike Walsh on November 15, 2006, 10:59 pm
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The last time I saw that it was because of a bad keyboard.

bob@coolgroups.com wrote:
>
> Sometimes my keyboard stops working. If I unplug it and plug it back
> into my PC, it works again though.
>
> Anyone know why this happens and/or a permanent remedy for this?

--
Mike Walsh
West Palm Beach, Florida, U.S.A.

Posted by Rod Speed on November 15, 2006, 11:18 pm
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bob@coolgroups.com wrote:

> Sometimes my keyboard stops working. If I unplug
> it and plug it back into my PC, it works again though.

> Anyone know why this happens and/or a permanent remedy for this?

You can get that effect when the 5V rail that supplys the keyboard
is a little low. The extra drop down the cable to the keyboard can
see it too low at the keyboard, particularly with an extension cable.

Unfortunately the fix is replacing the power supply.

You can get it with a bad solder joint at the keyboard connector. Try
just wrigging the connector instead of unplugging it and replugging it.

Thats easier to fix if you can solder.

Can also be a bad keyboard, see if you get that effect on a
different system. If you dont, the keyboard is obviously fine.



Posted by Gerard Bok on November 16, 2006, 4:35 am
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On 15 Nov 2006 19:06:08 -0800, bob@coolgroups.com wrote:

>Sometimes my keyboard stops working. If I unplug it and plug it back
>into my PC, it works again though.

Don't!
The keyboard is not designed to be hot-pluggable.

You may damage both your keyboard and your PC by plugging or
unplugging the keyboard while power is on.

--
Kind regards,
Gerard Bok

Posted by Mike Walsh on November 16, 2006, 8:55 am
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I have hot plugged keyboards and mice many times without any problems. Probably
the biggest hazard when doing it is static electricity; not a big problem in
south Florida. When I worked in the frozen north I had a site that would
regularly zap keyboard controllers during the winter when hot plugging the
keyboard. This was before PCs, and I could replace the circuit board with the
controller on it.

Gerard Bok wrote:
>
> On 15 Nov 2006 19:06:08 -0800, bob@coolgroups.com wrote:
>
> >Sometimes my keyboard stops working. If I unplug it and plug it back
> >into my PC, it works again though.
>
> Don't!
> The keyboard is not designed to be hot-pluggable.
>
> You may damage both your keyboard and your PC by plugging or
> unplugging the keyboard while power is on.
>
> --
> Kind regards,
> Gerard Bok

--
Mike Walsh
West Palm Beach, Florida, U.S.A.

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