User Manual
Table Of Contents
- Introduction
 - Contents
 - USING THE UNIT SAFELY
 - Important Notes
 - Names of Things and What They Do
 - Before You Play
 - Listening to Demo Songs
 - Performing
- Performing with a Variety of Sounds
 - Adjusting the Keyboard Sensitivity (Key Touch)
 - Adding Spatial Depth to the Sound (3D Sound Control)
 - Adding Liveliness to the Sound (Dynamics Sound Control)
 - Adding Reverberation to Sounds (Reverb Effect)
 - Changing the Key of the Keyboard (Key Transpose)
 - Dividing the Keyboard for Two-person Performance (Twin Piano)
 - Performing With Two Layered Tones (Dual Play)
 - Performing with Different Tones in the Left and Right Sides of the Keyboard (Split Play)
 - Performing with the Metronome
 - Sounding a Count to Keep your Timing Accurate
 
 - Playing Back Songs
 - Recording
 - Saving Your Performance
 - Various Settings
- Basic Operation in Function Mode
 - Keyboard Settings
 - Pedal Settings
 - Tuning Settings
 - Sound-related Settings
 - Metronome Settings
 - Count-down Setting
 - Song Playback Settings
 - MIDI Settings
 - Other Settings
 - Remembering the Settings (Memory Backup)
 - Restoring the Settings to the Factory Condition (Factory Reset)
 - Disabling the Buttons (Panel Lock)
 
 - Connecting to Other Devices
 - Troubleshooting
 - Error Messages
 - Tone List
 - Internal Song List
 - Parameters Stored in Memory Backup
 - Music Files That the DP-990 Can Use
 - MIDI Implementation Chart
 - Main Specifications
 - Index
 
12
Important Notes
Servicing
• If you return this device for servicing, the contents of 
memory may be lost. Please store important contents on 
USB memory, or make a note of the contents. We take 
utmost care to preserve the contents of memory when 
performing service, but there may be cases when the stored 
content cannot be recovered because the memory section 
has malfunctioned. Please be aware that we cannot accept 
responsibility for the recovery of lost memory content or for 
any consequences of such loss.
Other Cautions
• Stored content may be lost due to a malfunction of the 
device or because of inadvertent operation. You should 
back up important content on USB memory as a safeguard 
against such loss
• We cannot accept responsibility for the recovery of any 
content lost from internal memory or USB memory, or for 
the consequences of such loss.
• Do not apply excessive force to the buttons, knobs, or 
input/output jacks, since this may cause malfunctions.
• When connecting or disconnecting cables, grasp the plug 
(not the cable) to prevent short circuits or broken 
connections.
• Please enjoy your music in ways that do not inconvenience 
other people nearby, and pay particular attention to the 
volume at nighttime. Using headphones will allow you to 
enjoy music without having to be concerned about others.
• When you need to transport the unit, package it in the box 
(including padding) that it came in, if possible. Otherwise, 
you will need to use equivalent packaging materials.
• If using the music rest, do not apply excessive force to it.
• Some connection cables contain a resistor. Do not connect 
such cables to this device. Doing so may make the volume 
extremely low or inaudible. Please use connection cables 
not containing a resistor.
• Do not insert your finger into the bass reflex port (hole) of 
the speaker box. The edge of the wood may injure you.
• Never insert foreign objects (flammable material, coins, 
wire, etc.) into the bass reflex port (hole) of the speaker 
box. Doing so may cause damage or malfunctions.
Floppy Disk Handling 
(Using Optional Floppy Disk Drive)
• Floppy disks contain a plastic disk with a thin coating of 
magnetic storage medium. Microscopic precision is 
required to enable storage of large amounts of data on 
such a small surface area. To preserve their integrity, 
please observe the following when handling floppy disks:
• Never touch the magnetic medium inside the disk.
• Do not use or store floppy disks in dirty or dusty areas.
• Do not subject floppy disks to temperature extremes 
(e.g., direct sunlight in an enclosed vehicle). 
Recommended temperature range: 10–50 degrees C 
(50–122 degrees F).
• Do not expose floppy disks to strong magnetic fields, 
such as those generated by loudspeakers.
• Floppy disks have a “write protect” tab which can protect 
the disk from accidental erasure. It is recommended that the 
tab be kept in the PROTECT position, and moved to the 
WRITE position only when you wish to write new data onto 
the disk.
fig.DiskProtect.e.eps
• The identification label should be firmly affixed to the disk. 
Should the label come loose while the disk is in the drive, it 
may be difficult to remove the disk.
• Store all disks in a safe place to avoid damaging them, and 
to protect them from dust, dirt, and other hazards. By using 
a dirty or dust-ridden disk, you risk damaging the disk, as 
well as causing the disk drive to malfunction.
Rear side of the disk
Write 
(can write new data onto disk)
Protect 
(prevents writing to disk)
Write Protect Tab
DP-990_e.book 12 ページ 2009年2月17日 火曜日 午前8時30分










