Front Panel: Left Side - Yamaha SY99 Owner's Manual

In order to understand the rest of this manual and take full advantage of the SY99, you will need to know
the names and uses of the controls and other features of the front panel. This page explains the left side of
the front panel, including the LCD.
Keyboard:
The 76-note keyboard of the SY99 is sensitive to
key-on velocity and to channel aftertouch.
Pitch and modulation wheels:
The PITCH wheel bends the pitch up or down, and
is spring-loaded to return to center position. The
MODULATION 1 wheel affects the sound as
specified by the voice parameters; usually con-
trolling the amount of vibrato or tremolo. The
MODULATION 2 wheel also affects the sound as
specified by the voice parameters, but is center -
detented to help you return it to exactly center
position.
Disk drive:
The 3.5" 2DD floppy disk drive can economically
store large amounts of the various types of data
used by the SY99. The disk drive indicator LED
will light when the disk is being read or written.
Never attempt to remove the disk while this
LED is lit. Doing so could damage the disk.
Insert the disk with the label facing up, from
the end with the shutter. To remove the disk,
press the button at the lower right of the drive.
DATA card slot:
An optional RAM card (MCD64) can be inserted
into the DATA slot to store data for the SY99's
tone generator.
Waveform card slot:
An optional waveform ROM card can be inserted
into the WAVEFORM slot to provide additional
AWM sounds.
Volume sliders:
These sliders regulate the output volume from
the two pairs of stereo output on the rear panel.
Liquid Crystal Display (LCD):
The 240 x 64 pixel LCD is backlit for readability
even in dark locations. Adjust the CONTRAST
control on the rear panel to suit your viewing
angle.
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Front panel: left side

Mode select keys:
The functions of the SY99 are divided into five
modes. Press one of these buttons to select the
mode, and the LED above the button will light
red to indicate the selected mode.
The SY99's Synthesizer is always in one of
two modes; Voice mode or Multi mode. One of
the LEDs above these two keys will always be
lit (green, if neither Voice nor Multi mode is
selected) to indicate which mode the synthesizer
is in.
The SY99's Sequencer is always in one of
two modes; Song mode or Pattern mode. One of
the LEDs above these two keys will always be
lit (green, if neither Song nor Pattern mode is
selected) to indicate which mode the sequencer
is in.
The Utility mode LED is either red (when
Utility mode is selected) or off (when a different
mode is selected).
Edit/Compare:
Press this button to edit the data of the currently
selected Voice, Multi, Sequencer Song, or
Sequencer Pattern. In voice edit or multi edit
mode, pressing this button allows you to com-
pare the original data with the edited data.
Copy:
While editing, this button is used to copy various
types of data.
Effect Bypass:
At any time, pressing this button will allow you
to hear the sound without the DSP effects. The
red LED will light to indicate that the effects are
bypassed. To defeat effect bypass, press the
button again.
Sequencer Control:
The SY99 sequencer can be used at any time,
even while editing a voice or multi. The data
played or recorded will depend on whether the
sequencer is in Song or Pattern mode.