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Panel Descriptions
fig.00b-03
1.
USB connector
This connector lets you use a USB cable to connect your
computer to the RD-300SX (p. 50).
2.
PEDAL jacks (DAMPER, CONTROL)
Connecting the pedal switch (DP series) provided with the RD-
300SX to the DAMPER jack allows you to use the switch as a
damper pedal.
With an optional expression pedal (such as the EV series or
other model) connected to the CONTROL jack, you can then
assign a variety of functions to the pedal (p. 39, p. 40).
3.
MIDI connectors (IN, OUT)
Used for connecting external MIDI devices and for transmission
of MIDI messages (p. 12, p. 47).
4.
OUTPUT L(MONO)/R jacks
Provide output of the audio signals. These are connected to an
amp or other device. For monaural output use the L/MONO
jack (p. 12).
5.
PHONES jack
A set of headphones can be connected to this jack (p. 12).
Even when headphones are connected, sound will still be
output from the output jacks.
6.
Ground terminal
927
Depending on the circumstances of a particular setup, you may
experience a discomforting sensation, or perceive that the
surface feels gritty to the touch when you touch this device,
microphones connected to it, or the metal portions of other
objects, such as guitars. This is due to an infinitesimal electrical
charge, which is absolutely harmless. However, if you are
concerned about this, connect the ground terminal (p. 11) with
an external ground. When the unit is grounded, a slight hum
may occur, depending on the particulars of your installation. If
you are unsure of the connection method, contact the nearest
Roland Service Center, or an authorized Roland distributor, as
listed on the “Information” page.
Unsuitable places for connection
• Water pipes (may result in shock or electrocution)
• Gas pipes (may result in fire or explosion)
• Telephone-line ground or lightning rod (may be
dangerous in the event of lightning)
7.
[POWER]
Turns the power on/off (p. 13).
8.
DC In jack
Connect the included AC adaptor here (p. 11).
9.
Cord hook
Anchor the included power cord here (p. 11).
Rear Panel
1 52
3
4 76 8 9
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