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connecting both output jacks to the corresponding
inputs of a stereo or two-channel! sound system in
order to get the best possible sound. If this is not
possible, connect only the LIMONO OUTPUT jack
to the amplification
equipment used.
@ SUSTAIN Jack
This jack accepts an optional YAMAHA FC-4 or FC-
5 footswitch which functions as a sustain pedal
when connected. The sustain pedal functions in
the same way as a damper pedal on an acoustic
piano — when the pedal is pressed notes played
have a long sustain. Releasing the pedal immedi-
ately stops (damps) any sustained notes.
@® FOOT VOLUME Jack
e
The
FOOT
VOLUME
jack accepts
an
optional
YAMAHA FC-7 Foot Controller which permits foot
volume control for extra expressive capability.
BOTTOM PANEL
Q Battery Compartment
If you intend to use battery power (which makes
the DS55 very portable and convenient), six 1.5V
SUM-2, R-14 or equivalent alkaline batteries (sold
separately) must first be installed in the DS55 bat-
tery compartment.
Open the battery compartment
cover located in
the center of the instrument's bottom panel.
Insert the six batteries, being careful to follow the
polarity markings (+, -) on the inside of the com-
partment.
Replace the compartment cover, making sure that
it locks firmly in place.
@ FEEDBACK LEVEL Control
This control makes it possible to adjust the overall
"length"
of the DS55's delay effects to match
your music.
Details on page 11
MIDI IN, OUT & THRU Connectors
The MIDI IN connector receives MIDI data from
an external
MIDI device (such as another
MIDI
keyboard or a MIDI sequencer) which can be used
to control the DS55. The MIDI THRU connector re-
transmits any data received at the MIDI IN con-
nector, allowing "chaining" of several MIDI instru-
ments or other devices. The MIDI OUT connector
transmits MIDI data generated by the DS55 (e.g.
note and velocity data produced
by playing the
DS55 keyboard).
More details on MIDI are given in "MIDI FUNC-
TIONS" on page 21.
Caution:
@ When the batteries run down, replace them with a
complete set of six new batteries. NEVER mix old
and new batteries.
4 To prevent possible damage due to battery leak-
age, remove the batteries from the instrument if it
is not to be used for an extended period of time.
"aaa
8
DS55 CONTROLS AND CONNECTORS
5
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