Troubleshooting an Arp Sequencer

[Jim Johnson]

Turns out the problem was a lack of a good ground on the jack panel. With
the boards removed from the case, there was no ground on the jack panel.
Once I grounded it, everything worked fine.

*********** REPLY SEPARATOR ***********

On 5/13/98, at 12:59 PM, Ingo Debus  wrote: 

>Jim Johnson wrote:
>> 
>> Nah, the switch is already debounced. It is only when the jack panel
board
>> - an entirely passive board, nothing but jacks and an LED - is
connected,
>> that the switch bounces. And when I unsoldered the jack that connects to
>> the circuit, the problem went away, which is why I suspect parasitics in
>> the jack. Which is wierd.
>
>An open MOS input perhaps?
>
>Ingo

Jim Johnson 
Metaphoric Software
-------------------
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