Doepfer

Hi all,

I recently bought an FP5 foot controller and A-177-2 External Foot Controller II  
however when using it to control various modules I have felt it hasn't been behaving as I expected and when checking it with a voltmeter I found it is putting out a CV of roughly +6.7V to +11V with a full pedal sweep, not The  0...+8V described in the manual.  

Checking the pedal I found it's resistance between tip and ring to vary from about 9.4k to 0.1k when swept.

The double foot switch of the A177-2 has been functioning normally and when I checked it with the voltmeter both gates when triggered put out the normal 0 to roughly 12V, so it is just the foot controller aspect of the module that I think is not working properly.

I wondered if anyone had any advice on how to proceed, and if this doesn't sound normal,  what could be causing the problem?

Although both units will still be under warranty but I bought them from Shnediers Buero  whilst on holiday in Berlin, and I live in the UK, so returning them would be difficult!

Thanks,

Neal

> Hi all,
>
> I recently bought an FP5 foot controller and A-177-2 External
> Foot Controller II
> however when using it to control various modules I have felt it
> hasn't been behaving as I expected and when checking it with a
> voltmeter I found it is putting out a CV of roughly +6.7V to +11V
> with a full pedal sweep, not The  0...+8V described in the manual.
>
> Checking the pedal I found it's resistance between tip and ring
> to vary from about 9.4k to 0.1k when swept.
>
> The double foot switch of the A177-2 has been functioning
> normally and when I checked it with the voltmeter both gates when
> triggered put out the normal 0 to roughly 12V, so it is just the
> foot controller aspect of the module that I think is not working properly.
>
> I wondered if anyone had any advice on how to proceed, and if
> this doesn't sound normal,  what could be causing the problem?
>
> Although both units will still be under warranty but I bought
> them from Shnediers Buero  whilst on holiday in Berlin, and I
> live in the UK, so returning them would be difficult!
>
> Thanks,
>
> Neal

I suppose that it's a problem with the FP5. The FP5 are delivered by FATAR
unadjusted (i.e. the resistance range and consequently the voltage range is
not the same for each FP5 from the factory). That's why we open each single
FP5 and adjust it so that 0V are generated in the low position and about +8V
in the upper position. Then the FP5 is equipped with a label at the bottom
("DOEPFER FP5" and a picture of the FP5 together with a garbage can symbol).
Please check if your FP5 has this label available.

Best wishes
Dieter Doepfer