Doepfer MBP25 Midi Bass Pedal Electronics Kit - Manual (Page 13)

User's Guide page 13 MBP25
Shortening the second bass pedal
If a 25 keys bass pedal has to be made by the combination of two 13 keys pedals one of the
two pedals has to be shortended as one of the "C" keys is redundant. Fortunately the PD/3
pedals use a plastic frame and can be shortened with passable effort. From our experience
it's easier to remove the upper key of the lower pedal though it would be possible too to
remove the lower key of the upper pedal. In the following the shortening procedure is
described.
~ 32 mm
Mark a cutting line with a
distance of about 32-34 mm
from the pcb edge to the
bottom of the pcb.
Cut off the pcb at his line with a
suitable saw.
Pay attention not to damage
the red 16 pin connector on the
other side of the pcb.
Cutting the pcb interrupts three
tracks. They have to be
repared after the cutting. These
are the three (blue)
connections shown in the
picture. For this three wires
have to be soldered across two
points of the interrupted pcb
tracks. It is not essential to
make the connections as
shown in the picture. Even
longer wires can be used to
connect the interrupted tracks
on any two points. If existing
solder points are used it is not
necessary to remove the
(green) solder mask to solder
the wires to the copper tracks.