Hi Paul
 phono1337 schrieb:
 > I know its not possible but has anyone made a mod for this
I did try to search the list but didn't hit anything
Have a look at
http://fa.utfs.org/diy/korg_monopoly/mp_09_klm-356_uP_ArpIn_schemo.gif
 On top right side there is IC6 which is a 4051. to its left you will
 find the jack with CV-Out and the connector to KBD-Track. Both are
 connected. Break up this connection, insert a toggle switch which
 connects the KBD-Track either to its original connection, or to the
 point where D1 and R13 are conected together (both are direct above the
 the CV-Out jack in the schematic).
 The original position is for the usage with internal CV, the other
 position is for the usage with an external CV.
 The KBD-Track split must be done at connector CN20 (top left of the
 KLM356); D1/R13 are located at the top right of the pcb.
 No warranty - I did not test this.
 Florian