Oberheim OB-SX - Page 7

MANUAL CONTROL PANEL FUNCTIONS
The following is a list and description of the non-programmable
functions on the front panel. "Non-Programmable11 means the preset
sounds do not have control over the following parameters.
VOLUME This control adjusts the overall volume of the
synthesizer.
AUTO When this button.is pressed, the microprocessor
inside the synthesizer automatically tunes all
of the OB-SX Oscillators. While this process is
occurring, the Output Amplifier is shut off. The
AUTO TUNE procedure takes about two seconds. As
the Oscillators on each voice are tuned, the
PROGRAM lights advance. If a voice is unable to
be tuned, the PROGRAM light corresponding to that
voice will flash for two seconds, and then that
voice will be skipped by the keyboard, assuring
good tuning at all times.
All of the controls are disabled during AUTO TUNE
except the PITCH BEND lever. Therefore, if this
lever is moved while the tuning process is taking
place, the oscillators will be unable to be tuned,
If a particular voice is unable to be tuned after
repeated attempts, a problem exists and the unit
should be turned over to an Authorized Service
Center for servicing.
HOLD This button is used to produce a sustained note
or chord. To use, press the HOLD button and
simultaneously press one or more notes, and then
release the HOLD button. The note or notes
played will now be sustained indefinitely. If it
is desired to hold several notes, they may be
played either one at a time or simultaneously,
while holding down the HOLD button. To cancel
the hold function, press HOLD a second time, but
be sure not to hold down any keys.
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