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Post subject: ProReverb (SF/70w) footswitch problem / reverb hiss
Posted: Sun Jul 02, 2017 11:37 am
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Hey dear fender people!
I got a little problem with my ProReverb here.

I cut off the cable for the footswitch, to place it on my floorboard to then reconnect it via the patchbay i built into the floorboard itself.

Problem being:

I can at this point only turn on/off the tremolo.
Reverb is always on, has nasty hiss all over it and the footswitch crackles, everytime i touch the footswitch chassis.

Is there a special trick on the wiring i am not getting here?
Thanks very much!


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Post subject: Re: ProReverb (SF/70w) footswitch problem / reverb hiss
Posted: Fri Jul 07, 2017 1:22 am
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GordonCole wrote:


can at this point only turn on/off the tremolo.
Reverb is always on, has nasty hiss all over it and the footswitch crackles, everytime i touch the footswitch chassis.



Wiring / solder are wrong.


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Post subject: Re: ProReverb (SF/70w) footswitch problem / reverb hiss
Posted: Sat Jul 15, 2017 7:56 am
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The stock wiring is kinda trick and may defy your patchbay.
The reverb is only grounded on the return end. The tremolo switch uses the same ground. This is to prevent ground loops in the footswitch.
I'm not sure how to accommodate it in the patchbay with those ground requirements.


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