Korg Sigma - INPUT JACKS, OUTPUT JACKS, AND CONNECTIONS; Input and Output Jack Descriptions; Guitar and Bass Amp Connection Precautions; General Safety and Connection Warnings

3.
INPUT JACKS,
OUTPUT
JACKS,
AND CONNECTIONS
•
input jack
for
units like the MS-01 foot
control pedal, used for remote control
SYNTHE section tone color, (by varying
LPVCFfc)
input
jack for external control from
MS-01 (or other unit) over Sigma's total
pitch. Maximum pitch fluctuation is
3-
octaves.
© Output jack
for
Sigma
keyboard's trigger
signal. Use with KBD CV OUT
to
play
additional
synthesizers.
Output jack for Sigma keyboard's control
voltage signal.
Use
when playing
other
voltage controlled synthesizers such
as
the MS-50.
Input jack for trigger signal from external
unit for control of the Sigma's
EG
(envelope generator). Used with VCO CV
IN,
to
play Sigma without using the
Sigma keyboard.
Input jack for control voltage signal (from
MS-03, SQ-10. MS-10. MS-20, or other
unit) that controls Sigma's VCO's.
&
Output jack for stereo headphones.
© Output
jack for INST section audio signal.
© Output jack for
SYNTHE section audio
signal.
•If only one of
these
jacks is
connected
to
an amp, then that jack's output signal will
be a mixture of both the
INST
and
SYN-
THE section signals.
Precautions when using
guitar or
bass
amps
Synthesizer output signals are very large compared to the signals from a
guitar
or bass
pickup.
Noise can be minimized
by
following these steps to get the correct volume
settings on the Sigma and the guitar or bass amp:
First turn on three of the Sigma tablets, and
set
the Sigma volume knob
to
"8"
or
"9".
Then turn up the amplifier volume knob to get the loudness you want.
4.
CAUTION
Before plugging in the Sigma's AC power
cord, always make sure the
AC
line voltage
matches the Sigma's voltage rating. If
power supply voltage is less than
90%
of
the
standard rating, the synthesizer's S/N
ratio will drop and it will not sound
as
clear;
the synthesizer
modules
may not oper-
ate with their normal stability, either.
Therefore, when you use
the
Sigma in a
new place and
you
have any reason
to
suspect that
the
AC voltage may not be
right, have it checked with
a
reliable AC
voltmeter before turning on the power on
the Sigma.
When making connections,
only use
standard phone plugs in the Sigma's
input and output
jacks. Never
try to insert
any other type of plug in these jacks.