User`s manual

Installation Instructions
The SMK should require between 1 to 2 hours to install. Depending on
the particular firmware revision, you will either receive a 24 pin ROM (P#
2532) or a 28 pin ROM (P# 27256). The Source microprocessor board
has the original 24 pin socket. We've included a 28 pin ROM socket on
the SMK for future firmware updates. Whichever ROM you receive, plug it
in the socket with the same number of pins as the IC.
Also, pay attention to the orientation. If you have any questions, please
email! The factory update that allowed the sequencer transpose function
(ROM Version 2.2) is required to allow pitch bend in the SMK. There is a
slight modification that the SMK requires. The two resistor values have
been modified: 332k is now 665k and the 110k is now 221k. Since the
majority of Sources have the transpose update, we do not supply the 10
K potentiometer. It can be found at local electronic stores. If you want the
overall pitchbend range to be something other than one octave, there is a
table of resistors included in this manual to choose any semitone interval
up to one octave. They are standard 1% resistors and can also be
located in any decent electronic store. After the main installation
instructions, follow the calibration instruction in order to set the scaling of
the oscillators. You will need a 5/8" chassis punch or equivalent hole
cutting device and a 5/64" drill bit for the installation.
STEPS
1) Previous versions of this software (4.08) allowed the reload of tape
patches. This version will not allow the MIDI kit to load the user's patches.
2) Open the case and remove the keyboard. 4 woodscrews + 2 screws
on back for case. 5 screws for the keyboard.
3) Mount MIDI jacks. If your unit has the separate 1/4" jacks for S-trigger
in and out, you are in luck. Remove these and use the existing holes for
the chassis punch. MIDI out should go in the S-TRIG OUT hole. Any
other location will need to be drilled between the rear panel SOURCE
logo and the power receptacle, and cleaned (loose metal) before using
the chassis punch. Be sure to check for wires, etc. behind the area you
are planning to drill. The flanges of the MIDI jacks should go on the
outside of the Source to cover any imperfections in the holes. Use a 5/64"
(.078) drill bit for the four mounting holes. The supplied screws should
thread right into the aluminum back panel. You may optionally install the
THRU jack. We added this in 1998 because a small percentage of our
customers requested it.