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Re: EDP footpedal strangeness and a request for public testing
A couple of suggestions from the dunce's corner before
you consult NASA.... :)
1) I assume you've tried it with different cables
connecting the EDP & footpedal
2) Have you cleaned the footpedal jack on the EDP
rear panel?
I hope you get well soon.
John
--- Andre LaFosse <altruist@altruistmusic.com> wrote:
> Hello list,
>
> I'm still experiencing a very strange and
> intermittent problem with my
> EDP footpedal:
>
> When hitting Insert very quickly and repeatedly, it
> will occasionally
> trigger Multiply, and less occasionally Overdub.
>
> Here's what I've done to my footpedal over the last
> few days:
>
> -- Replaced every single switch with a brand new
> switch
>
> -- Replaced every resistor with a brand new resistor
>
> -- Put in a new jack
>
> -- Put in new wiring
>
> -- Re-soldered every connection, which in any event
> was newly soldered
> to begin with, since the various component parts
> being soldered together
> are all new
>
> In short, the only part of the old pedal I still
> have is the actual
> metal chassis. Everything else has been replaced,
> and I'm still getting
> the same basic problem. It's less pronounced that
> it was, but still
> very much present.
>
> The obvious answer would be that it's a problem with
> the EDP itself.
>
> Except...
>
> I've used a friend's footpedal with my EDP, and
> gotten this problem
> EXTREMELY rarely -- so infrequently that it hardly
> EVER happens.
>
> I also plugged my own problematic footpedal into his
> EDP, AFTER all of
> the modifications, and it behaves the same way in
> his unit as it does in mine.
>
> My pedal (and EDP) is an older Oberheim model, and
> his are Gibson
> models. But I've never noticed this particular
> problem prior to the
> beginning of this year.
>
> The only difference between the two footpedals is
> that my friend's newer
> model has insulation on the input jack, to keep it
> from connecting to
> the metal housing of the chassis itself. Even after
> modifying my unit
> with insulation, the problem persists. And I never
> noticed this for the
> previous six years that I've been using the pedal
> without insulation.
>
> Furthermore, Matthias tells me that, since the front
> panel buttons and
> the footpedal buttons are wired parallel, that any
> problem with the
> footpedal should be duplicated with the front
> buttons, and vica versa.
> When I do this test on the front panel buttons, it
> NEVER EVER happens at
> all. Not even ONCE.
>
> It's not a beta test issue, because I put Loop3 in
> and noticed the same
> thing (as well as my friend's unit, which is also on
> Loop3).
>
> So, I have two questions for the list:
>
> 1) Does anyone have any ideas as to what I should
> try now?
>
> 2) Can anyone with an EDP and a spare minute please
> perform the
> following test for me:
>
> -- Turn quantize off. Then press the Insert button
> on the footpedal as
> fast as you can, repeatedly (for 30 seconds at
> least). Watch the front
> panel display, and see if it goes into Multiply or
> Overdub at any point
> during this.
>
> I will assume that I now possess the EFC-7
> equivalent of a Ouija board
> until such time as my pedal starts operating
> normally again...
>
> Big thanks for any ideas, and to everyone who
> already wrote in with suggestions.
>
> --Andre "Crowley" LaFosse
> http://www.EFC-7-busters.com
>
=====
John Tidwell
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