Boss Audio Systems RT-20 - Manual (Page 4)

4
Making the Connections
• The use of an AC adaptor is recommended as the unit’s power consumption is
relatively high. Should you prefer to use batteries, please use the alkaline type.
• Noise may be produced if wireless communications devices, such as cell phones, are
operated in the vicinity of this unit. Such noise could occur when receiving or initiating
a call, or while conversing. Should you experience such problems, you should relocate
such wireless devices so they are at a greater distance from this unit, or switch them
off.
• Use a cable from Roland to make the connection. If using some other make of
connection cable, please note the following precautions.
• Some connection cables contain resistors. Do not use cables that incorporate resistors
for connecting to this unit. The use of such cables can cause the sound level to be
extremely low, or impossible to hear. For information on cable specifications, contact
the manufacturer of the cable.
• When the unit is running on battery power, the power comes on when you insert the
connector plug into the INPUT A (MONO) jack.
• To prevent malfunction and/or damage to speakers or other devices, always turn
down the volume, and turn off the power on all devices before making any
connections.
• If there are batteries in the unit while an AC adaptor is being used, normal operation
will continue should the line voltage be interrupted (power blackout or power cord
disconnection).
• Once the connections have been completed, turn on power to your various devices in
the order specified. By turning on devices in the wrong order, you risk causing
malfunction and/or damage to speakers and other devices.
When powering up:
Turn on the power to your guitar amp last .
When powering down: Turn off the power to your guitar amp first .
• Always make sure to have the volume level turned down before switching on power.
Even with the volume all the way down, you may still hear some sound when the
power is switched on, but this is normal, and does not indicate a malfunction.
• When operating on battery power only, the POWER indicator will become dim when
battery power gets too low. Replace the battery as soon as possible.
• When moved from one location to another where the temperature and/or humidity is
very different, water droplets (condensation) may form inside the unit. Damage or
malfunction may result if you attempt to use the unit in this condition. Therefore,
before using the unit, you must allow it to stand for several hours, until the
condensation has completely evaporated.