Roland DP-900 Manuale Utente

Pagina di 48
 
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