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■ Practicing with the Rhythm Coach
1. Press [COACH].
"COACH" appears in the display and the DB-
90 is switched to Coach mode.
Press the [COACH] button to switch among the
four practice modes.
1. Time Check
Accuracy and Timing Exercise
2. Quiet Count
3. Gradual Up/Down
Endurance and Stamina Exercise
4. Step Up/Down
2. Press [START/STOP] to start the metronome and begin the exercise.
- Metronome patterns are played in accordance with the Metronome mode settings.
- The sound is switched to the Rhythm Coach tone and is not selectable.
- Adjust the volume with the master volume slider.
- Pressing [COACH] or [TRIG/GUIDE] stops the metronome, while a performance is playing.
- Using TEMPO/VALUE dial or pressing [TAP] can change the tempo.
* The trigger sound is enabled only in Coach mode.
Time Check(
)
This mode is designed to provide extensive practice in drumming with the proper rhythm in time
with the guide sound as counted out by the metronome.
The display indicates whether or not the source for the mic input or pad is struck with the same
timing as the metronome. The timing for quarter notes ( ) is checked.
1. Press [COACH] to select "
"
2. Press [START/STOP] to begin to exercise.
On the beat
Behind the beat (too slow)
Ahead of the beat (too fast)
(perfect timing)
* If [GOOD] continues to appear in the display after you press [START/STOP] to start the time check,
even when you do not strike the pad, it means that the trigger is reacting to the metronome sound. Refer to
the instructions in "Setting the Mic Sensitivity" above and adjust the "SENS" value and the volume of
the metronome sound.
Quiet Count (
)
Quiet Count mode is a timing exercise designed to develop and learn "internal" timing. In this
mode, the metronome will play at the set volume level for the first four measures then play the
second four measures at a reduced volume. The four measure cycle of loud and soft counts will
continue until stopped.
1. Press [COACH] to select "
"
2. Press [START/STOP] to begin to exercise.
Gradual Up/Down (
)
Practice in "Gradual Up/Down" mode is designed to increase stamina and endurance by gradually
increasing and decreasing the tempo. The speed increases 1 BPM every two beats until the
maximum metronome value is reached. Once you hit the maximum value, the speed decreases 1
BPM every two beats until you return to the original tempo. The process is then repeated. When
"PATTERN" is selected, the speed changes 1 BPM every two measures.
1. Press [COACH] to select "
"
2. Press [START/STOP] to begin to exercise.
When you press [WRITE] during a performance, the tempo in effect at that time is set as the
maximum metronome value (initial setting: 250). The minimum metronome value is set
according to the tempo set with the TEMPO/VALUE dial or tap input.
* Changing the minimum value resets the maximum value to the initial setting (250).
Step Up/Down (
)
Step Up/Down mode is designed to increase playing endurance by slowly increasing and
decreasing the speed of the metronome. In this mode, the metronome's tempo will increase by five
beats per minute (5 BPM) after every four measures until it reaches the metronome's maximum
tempo. After the maximum tempo is achieved, the metronome's tempo will decrease by five beats
per minute (5 BPM) after every four measures. This will continue until it reaches back to the
metronome's starting tempo and then repeat the process.
1. Press [COACH] to select "
"
2. Press [START/STOP] to begin to exercise.
When you press [WRITE] during a performance, the tempo in effect at that time is set as the
maximum metronome value (initial setting: 250). The minimum metronome value is set
according to the tempo set with the TEMPO/VALUE dial or tap input.
* Changing the minimum value resets the maximum value to the initial setting (250).
■ Changing the Time Check Standard
You can change the standard used in determining your accuracy as measured against the
metronome sound to any of three levels.
This allows you to practice with the timing suited to
your level of skill.
1. Press [TRIG/GUIDE] so that "GUIDE" is flashing.
2. Make the setting with the TEMPO/VALUE dial.
1: EASY
2: NORMAL
3: HARD (Accuracy is determined even more precisely)
Using the Memory
You can store up to fifty different metronome setting and ten different reference tone setting
configurations in the memory.
■ Calling Up Stored Settings (Memory)
1. When "MEMORY" is lit, press [MEMORY] to start "MEMORY" flashing.
2. While "MEMORY" is flashing, change the
memory number with the TEMPO/VALUE dial.
* Pressing [WRITE] while the memory is being selected
(while "MEMORY" is flashing) switches the DB-90
to selection of the write destination (the memory
number flashes).
•
Storing Settings to Memory
1. When the memory number is lit, press [WRITE].
The memory number flashes.
2. While the memory number is flashing, select the write-destination memory number with the
TEMPO/VALUE dial.
* Pressing [START/STOP] cancels the procedure, and the memory number remains lit.
3. Press [WRITE] once more to store settings to memory; the memory number starts flashing rapidly.
Once the memory number lights steadily, you'll know that the data has been successfully
stored in memory.
* Do not turn off the power while data is being stored to memory (when the memory number is flashing rapidly).
* "EDIT" is displayed when you change settings from content stored in the memory.
Playing the Reference Tone
1. Press [TUNE] to switch to Reference Tone mode.
When the DB-90 is in Reference Tone mode,
"NOTE," and "PITCH" appears in the display.
2. Set the note name with the TEMPO/VALUE dial.
You can set the note name in semitone increments
in the range from C2 to B6.
3. Press [START/STOP] to play the reference tone.
"MUTE" disappears from the display.
Press the button again to stop the sound. "MUTE" appears in the display.
* You can also play or stop the reference tone by pressing [MUTE].
■ Setting the Reference Pitch
1. Press [PITCH] in Reference Tone mode so that "PITCH" flashes in the display.
2. Set the reference pitch with the TEMPO/VALUE dial.
The reference pitch is set in terms of the value of A 4, which can be any frequency from 438 to 445 Hz.
* You cannot change the note name with the TEMPO/VALUE dial while "PITCH" is flashing in the
display. If you want to change the note name, press [TUNE] so "PITCH" stops flashing and remains lit
in the display.
* What is the reference pitch?
The frequency for A4 (the middle A on a piano) of a note played by an instrument (a piano, for example) as the
pitch to which all other performers tune their instruments for performances is called the "reference pitch."
Using MIDI (MIDI Mode)
MIDI (Musical Instrument Digital Interface) is a
universal standard that allows for the exchange of
performance data and other information among
electronic musical instruments and computers. Once
MIDI cables are used to connect together devices
equipped with MIDI connectors, each device can send
data to, or receive data from any of the others.
The DB-90 starts, stops, and displays the tempo in
synchronization with the external MIDI device (device
equipped with MIDI OUT).
When the master device is started or stopped, a MIDI
message for that operation is transmitted.
The slave then starts or stops in accordance with the transmitted MIDI message.
Furthermore, timing clock data corresponding to the tempo is transmitted by the master device.
Slave device synchronizes its performance to this timing clock.
■ Data Synchronized with the DB-90
The following MIDI messages are handled during synchronization with the DB-90.
• Start
• Continue
• Timing Clock
• Stop
• Active Sensing
1. Press [MIDI].
The DB-90 switches to Metronome mode and MIDI mode, with MIDI reception enabled.
"MIDI" lights steadily.
When the external MIDI device is started or stopped, the DB-90 then starts or stops.
2. Press [MIDI] once again.
MIDI mode is cancelled, and the DB-90 returns to Metronome mode.
*
You cannot change the tempo with the TEMPO/VALUE dial or through tap input while the DB-90 is in MIDI mode.
Pressing [TEMPO], [LOOP], [TUNE], [PITCH], [COACH], or [TRIG/GUIDE] cancels MIDI mode.
* If the MIDI cable is disconnected during synchronized play, the DB-90 will stop playing.
* Depending on the VOICE for the Beat, the metronome may not sound correctly when the tempo is set to
more than 220. In such cases, select VOICE 3.
* In MIDI mode, you cannot select from memory during performance.
Other Functions
■ Amp Simulator Function
The DB-90 is equipped with amp simulator circuitry.
This feature allows you to plug your electric guitar or bass directly to the DB-90 and use it as a
simple monitor amp.
Switching the Amp Simulator Circuit On/Off
1. Simultaneously press [MUTE] and [MIDI].
"
" appears in the display, indicating that the amp simulator circuit is switched on.
2. Once more, simultaneously press [MUTE] and [MIDI].
The amp icon disappears from the display, and the amp simulator circuit is switched off.
* The amp simulator on/off setting is stored in memory.
■ Auto Power Off
The Auto Power Off function works to help prevent unnecessary battery drainage by automatically
turning off the DB-90's power if no operation or adjustment is made within 60 minutes after any
button is pressed.
Disabling the Auto Power Off Function
To disable the Auto Power Off function, first turn off the DB-90's power, then hold down the
[TAP] as you press [POWER] to turn the power back on again.
The Auto Power Off function is disabled. "
" is indicated in the display while [TAP] is
held down.
The Auto Power Off function is enabled again the next time the DB-90 is turned on again.
■ Auto Backlight Off
Press [LIGHT] to turn on the backlighting.
The backlighting automatically turns off in approximately five seconds (Auto Backlight Off
function). "
" disappears from the display when Auto Backlight Off is enabled.
Disabling the Auto Backlight Off Function
If you want the backlighting to stay on, first turn off the DB-90's power, then hold down [LIGHT]
as you press [POWER] to turn the power back on again.
The Auto Backlight Off function is disabled, and "
" appears in the display.
The Auto Backlight Off function is enabled again the next time the DB-90 is turned on again.
* You cannot store the disabled status for Auto Power Off and Auto Backlight Off to memory.
Changing the Battery
The display and LED indicators dim when the battery begin to run down.
Replace the battery as soon as possible.
* If there is battery 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).
* The settings stored by the memory function are reset to the default factory settings if the battery is
removed from the DB-90, or if the battery gets completely depleted.
*
When turning the unit upside-down, handle with care to avoid dropping it, or damaging the buttons and controls.
1. Remove the lid of the battery compartment
(located on the bottom of the unit).
2. Remove
the
old
battery
from
the
compartment and remove the snap cord
connected to it.
3. Connect the snap cord to the new battery, and
place the battery inside the compartment.
* Make sure the "+" and "-" ends of the battery are
oriented correctly.
4. Securely close the battery cover.
Attachment to a Cymbal Stand
To attach the DB-90 to the separately available MDY-10U cymbal holder, follow the illustration
below. Use the washer and wing nut that are supplied with the MDY-10U.
For a stationary installation, turn the DB-90 for approximately five complete revolutions to attach it
to the MDY-10U. Then, after adjusting the DB-90 so it faces the appropriate direction, fasten it using
the wing nut.
If you wish to attach the DB-90 to a cymbal stand, use the included boss nut (hole diameter: 8 mm)
if the cymbal stand is larger than the attachment hole (diameter 6 mm) of the DB-90. (See the
following figure.)
* Do not apply undue force to any of the objects involved in the installation, as damage could result.
Example of using the boss nut
Cymbal stand
Wing nut
Washer
Boss nut
■ How to Use the Stand
You can use the DB-90's stand by setting
it up as shown in the figure.
Restoring the Factory Settings
This returns all settings on the DB-90 to the values they had when the unit shipped from the
factory.
Hold down [MEMORY] as you press [POWER] to turn the power on.
"
" is indicated in the display while [MEMORY] is held down.
All of the settings are restored to their original factory status.
Main Specifications
Metronome
- Tempo: =30-250, Accuracy: ±0.1% - BEAT1: 1–9 - BEAT2: OFF, 1–9
- PATTERN: 30 kinds (8-BEAT x 4, 16-BEAT x 3, SHUFFLE x 3, FUNK x 2, JAZZ x 2, BLUES,
TECHNO, HOUSE, COUNTRY, REGGAE, CLAVE 3-2, CLAVE 2-3, SALSA, RUMBA, BOSSA
NOVA, SAMBA, WALTZ, TANGO, MAMBO, CHACHACHA, MARCH)
-BEAT Tone: Voice 1 (Standard metronome sound), Voice 2 (Electronic metronome sound), Voice 3
(Electronic click sound), Voice 4 (Human voice)
Rhythm Coach
: Time Check, Quiet Count, Gradual Up/Down, Step Up/Down
Reference Tone
: - Reference Pitch: A4=438 Hz-445 Hz (1 Hz steps) - Reference Tone Range: C2-
B6 (5 octaves, 12 semitones), Accuracy: ±1 cent
Auto Power Off function
: Turns unit off after 60 min.
Memory
: - Metronome: 50 - Reference Tone: 10
Indicators
: LCD Display, Tempo Indicator LED x 2
Connector
: TRIG IN, START/STOP, MEMORY UP/DOWN, MIDI IN, PHONES x 2 (Stereo 1/4"
phone type, Stereo miniature phone type), INPUT, AC Adaptor jack (for PSA adaptor)
Speaker
: 50 mm x 1
Power Supply
: DV 9 V:
Dry battery 6LR61 (9V) type (alkaline),
Dry battery 6F22 (9V) type (carbon)
AC adaptor (PSA-series)
Power Consumption
:
85 mA or less (with reference tone sounding)
190 mA or less (with signals input to the INPUT jack)
- Expected battery life under continuous use:
Carbon: Approximately 1.5 hours, Alkaline: Approximately 6 hours
* These figures will vary depending on the actual conditions of use.
Dimensions
: 122 (W) x 164 (D) x 37.5 (H) mm / 4-3/4 (W) x 6-1/2 (D) x 1-1/2 (H) inches
Weight
: 450 g / 1 lb (including a battery)
Accessories
: Dry battery (6F22 (9V) Type), Soft case, Owner's Manual, Leaflet ("USING THE
UNIT SAFELY," "IMPORTANT NOTES" and "Information"), Boss nut (M8)
* In the interest of product improvement, the specifications and/or appearance of this unit are subject to
change without prior notice.
* 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.
MIDI Implementation Version: 1.00
1. Receive Data
■ System Real-Time Message
● Timing Clock
Status
F8H
● Start
Status
FAH
● Continue
Status
FBH
● Stop
Status
FCH
● Active Sensing
Status
FEH
IMPORTANT: THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE.
BLUE:
NEUTRAL
BROWN:
LIVE
As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying
the terminals in your plug, proceed as follows:
The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.
Under no circumstances must either of the above wires be connected to the earth terminal of a three pin plug.
For EU Countries
This product complies with the requirements of European Directive 89/336/EEC.
FEDERAL COMMUNICATIONS COMMISSION
RADIO FREQUENCY INTERFERENCE STATEMENT
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee
that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
– Reorient or relocate the receiving antenna.
– Increase the separation between the equipment and receiver.
– Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
– Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undesired operation.
Unauthorized changes or modification to this system can void the users authority to operate this equipment.
This equipment requires shielded interface cables in order to meet FCC class B Limit.
NOTICE
This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
AVIS
Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
For the U.K.
For the USA
For Canada
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