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11
Before You Start Playing
Connect the AC Adaptor
921
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.
1.
Connect the supplied AC adaptor and AC cord.
fig.00-02.e
2.
Connect the AC adaptor to the DC In connector
on the rear panel.
3.
As shown in the diagram, loop the AC adaptor
cord around the cord hook to fasten it in place.
fig.00-01.e
4.
Plug the AC cord into a power outlet.
As necessary, clamp the AC adaptor cord with the cord
clamps (p. 8).
924
To prevent the inadvertent disruption of power to your unit
(should the plug be pulled out accidentally), and to avoid
applying undue stress to the AC adaptor jack, anchor the
power cord using the cord hook, as shown in the illustration
above.
Even if the cord is fastened, strong tension applied to the cord
may cause it to be damaged or broken. Be careful not to pull
the cord accidentally, or to apply strong pressure to it.
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 or
the metal portions of other objects connected to it. This is due
to an infinitesimal electrical charge, which is absolutely
harmless. However, if you are concerned about this, connect
the ground terminal (see figure) 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)
AC adaptor
AC cord
Rear panel
ground terminal
Cord hook
DP-900_e.book 11 ページ ２００４年１１月２９日 月曜日 午後１２時５８分