Polybass board connectors
for details, get the connection schema on the site.
those are the connectors available on the board:
Input connections
X1
originally was the 14pin 0.1” header input connector.
we expanded it to serve as a general connector between Shield and Polybass. we can pop-
ulate it with as many pins as needed.
you can either connect a flat cable or an input board or solder single wires.
pin 1-6 strings E1...E6
pin 7 mix out, can go to a volume pot or filter stage or directly return to pin14
pin 8 0-5V DC input for VCA or GK Volume
pin 9 mid Gnd
pin10/11 GK UP/DN keys
pin12 V+
pin13 V-
pin14 return to output, usually connected to pin7
pin15 input 7th string or body piezo or magn PU
pin16 output Pbass for mixing
after SN -P0040:
pin15 output 7th string or body piezo or magn PU
pin16 output Pbass for mixing
pin17 input 7th string or body piezo or magn PU
pin18 return 1 for mixing
pin19 return 2 for mixing
pin20 battery switch, can be the ring of the output jack, needs to short with GND
pin21 battery -
pin22 b
X11
: power LED and pri-
ority switch
solder battery wires
X14
: VCA control (usu-
ally only used with RMC
board)
mixing connectors for
jumpers and potenti-
ometers
X1
: all inputs and an in-
sert so that filtering can
happen on a input board
X2
:
all outs, 13pin DIN
X13:
insert connector
for external mono ef-
fect like wooDi-m
X12
: output selector.
usually a jumper pin5-6
brings the mix
X15/16:
potentiome-
ter and mixing