BOSS DB-30 Dr Beat metronome Owner’s Manual
- June 5, 2024
- Boss
Table of Contents
BOSS DB-30 Dr Beat metronome Owner's Manual
Before using this unit, carefully read “USING THE UNIT SAFELY” and “IMPORTANT NOTES”. After reading, keep the document(s) where it will be available for immediate reference. © 2018 Roland Corporation
Main Features
- Comes not only with basic Styles (the way the metronome sound is played) pre-programmed, but also Styles with compound beats.
- You can set the tempo by pressing the TAP button in time with the song tempo (tap input of the tempo).
- You can specify the reference tone in semitone increments over a range of one octave. This is convenient for use in practicing with wind instruments and for tuning (Reference Tone function).
- Features an Auto Power Off function, which automatically turns off the power when the DB-30 is not used for approximately 60 minutes.
Panel Descriptions
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To prevent malfunction and equipment failure, always turn down the volume, and turn off all the units before making any connections.
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POWER button
Turns the power on and off. -
RHYTHM/BEAT button
Switches the unit to Metronome mode. Switches the TEMPO/ RHYTHM/BEAT display. -
NOTE/PITCH button
Switches the unit to Reference Tone mode. -
TEMPO/VALUE button
Changes the metronome tempo and the values indicated in the display. -
START/STOP button
Starts and stops the metronome and reference tone. -
TAP/MUTE button
Sets the metronome tempo (Tap function, when the metronome is stopped), and temporarily mutes the sound (Mute function, when the metronome is playing). -
VOLUME dial
Adjusts the overall volume. -
Tempo indicators
Lights in time with the tempo. -
Display
Information in the display is changed depending on the modes.
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Never strike or apply strong pressure to the display. 10. PHONES jack
Connect headphones here.- You can insert a coin in the slit on the bottom of the unit and use the coin as a stand.
- The strap can be passed through the hole shown in the figure.
- You can use the clip on the back to set the unit on a music stand.
Operation
Using the DB-30 as a Metronome
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With the power turned on, press the RHYTHM/BEAT button to switch the DB-30 to Metronome mode. When the DB-30 is in Metronome mode, “RHYTHM,” “TEMPO,” and “BEAT” appear in the display.
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If “RHYTHM,” “TEMPO,” and “BEAT” are displayed, press the TEMPO/VALUE H/I buttons to set the tempo.
Holding down the TEMPO/VALUE I or H button when setting the metronome tempo causes the values to change more rapidly. -
Press the START/STOP button to start the metronome.
To stop the metronome, press the START/STOP button once more.
- You cannot change the tempo with the TEMPO/VALUE I or H buttons while “RHYTHM” or “BEAT” is flashing in the display. If you want to change the tempo, press the RHYTHM/BEAT button so “RHYTHM” and “BEAT” stop flashing and remain lit in the display.
Setting the Tempo with Tap Input
While in Metronome mode, with the metronome stopped, you can tap the TAP/MUTE
button two or more times to set the tempo so it matches the timing you’ve used
in tapping the button.
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You cannot change the tempo with the TAP/MUTE button while the metronome is playing.
Setting the Way the Metronome Plays- Press the RHYTHM/BEAT button in Metronome mode so that “RHYTHM” or “BEAT” flashes in the display.
- Select a Rhythm or a Beat with the TEMPO/VALUE ▼ or ▲ buttons.
If “RHYTHM” is flashing in the display, you can select from 9 different Rhythms. If “BEAT” is flashing in the display, you can select from 24 different Beats. Holding down the TEMPO/VALUE ▼ or ▲ button when setting the beat causes the values to change continuously.
Playing the Reference Tone
- With the power turned on, press the NOTE/PITCH button to switch to Reference Tone mode. When the DB-30 is in Reference Tone mode, “PITCH” or “NOTE” appears in the display.
- While “NOTE” is lit in the display, set the note name with the TEMPO/VALUE I or H buttons.
You can set the note name in semitone increments over an octave range from C to B.
- You cannot change the note name with the TEMPO/VALUE I or H buttons while “PITCH” is lit in the display. If you want to change the note name, press the NOTE/PITCH button so “NOTE” is lit in the display. 3. Press the START/STOP button to play the reference tone. Press the START/STOP button again to stop the sound. Setting the Reference Pitch
1. Press the NOTE/PITCH button in Reference Tone mode so that “PITCH” is lit
in the display.
2. Set the reference pitch with the TEMPO/VALUE I or H
buttons. The reference pitch is set in terms of the value of A4, which can be
any frequency from 438 to 445 Hz.
- If you want to change the note name, press the NOTE/PITCH button so “NOTE” is 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.”
Other Functions
Auto Power Off
The Auto Power Off function works to help prevent unnecessary battery drainage
by automatically turning off the DB-30’s power if no operation or adjustment
is made within 60 minutes after any button is pressed.
- The power to this unit will be turned off automatically after a predetermined amount of time has passed since it was last used for playing music, or its buttons or controls were operated (Auto Power Off function).
If you do not want the power to be turned off automatically, disengage the Auto Power Off function.
Unsaved data is lost when the power turns off. Before turning the power off, save the data that you want to keep.
To restore power, turn the power on again.
Disabling the Auto Power Off Function
To disable the Auto Power Off function, first turn off the DB-30’s power, then hold down the TAP/MUTE button as you press the POWER button to turn the power back on again.
The Auto Power Off function is disabled. ” ” is indicated in the display while the TAP/MUTE button is held down.
The Auto Power Off function is enabled again the next time the DB-30 is turned on again.
Changing the Battery
The display and indicators get dimmer and the volume starts to drop when the
battery starts running down. Replace the battery as soon as possible.
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If you handle batteries improperly, you risk explosion and fluid leakage. Make sure that you carefully observe all of the items related to batteries that are listed in “USING THE UNIT SAFELY” and “IMPORTANT NOTES.”
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The settings stored in the memory are reset to the default factory settings if the battery is removed from the DB-30, or if the battery get completely depleted.
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When turning the unit upside-down, handle with care to avoid dropping it, or damaging the buttons and controls.
- Removed the screw from the battery cover.
- Slide off the cover.
- Remove the old batteries from the compartment.
- Insert the same type of fresh lithium battery.
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Make sure the “+” and “-” ends of the battery are oriented correctly. 5. Securely close the battery cover, and fasten the screw.
Power Supply: Use of Batteries- Before installing/removing batteries, make sure to turn off the power to this unit and disconnect all connections to other devices.
- The life of the supplied batteries may be limited, since its primary purpose was to enable testing.
Restoring the Factory Settings
This returns all settings on the DB-30 to the values they had when the unit shipped from the factory.
- Hold down the START/STOP button as you press the POWER button to turn the power on. is indicated in the display while the START/STOP button is held down.
All of the settings are restored to their original factory status.
- Factory Settings
Tempo: 120
Rhythm:
Reference Pitch: 440 Hz
Beat: 4
Reference Tone: A
Mute: Off
Troubleshooting
The power doesn’t come on, the power shuts off right after the unit is turned on, or the power shuts off or operation becomes unstable during use.
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Is the battery low or dead?
When the battery run down, the unit may fail to run normally. Replace with a new battery. -
The battery included with the unit are intended to be used only for verifying operation.
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Using headphones when the battery is low may cause the unit to fail to run normally.
Main Specifications
Metronome
USING THE UNIT SAFELY
ALWAYS OBSERVE THE FOLLOWING
- Burning of the skin or dermatitis may result if fluid has gotten onto your skin or clothing. Use clean water to flush affected areas thoroughly; then, promptly see a doctor.
- Using a soft cloth, carefully wipe any remaining fluid from the inside of the battery compartment. Then, install new batteries.
Roland Service Centers and Distributors
When you need repair service, access this URL and find your nearest Roland
Service Center or authorized Roland distributor in your country.
https://roland.cm/service
IMPORTANT NOTES
Placement
- This unit may interfere with radio and television reception. Do not use this unit in the vicinity of such receivers.
- 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.
- 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.
- Do not place containers or anything else containing liquid on top of this unit. Also, whenever any liquid has been spilled on the surface of this unit, be sure to promptly wipe it away using a soft, dry cloth.
Maintenance
- Never use benzine, thinners, alcohol or solvents of any kind, to avoid the possibility of discoloration and/or deformation.
Repairs and Data
- Before sending the unit away for repairs, you may prefer to write down the needed information. Although we will do our utmost to preserve the data stored in your unit when we carry out repairs, in some cases, such as when the memory section is physically damaged, restoration of the stored content may be impossible. Roland assumes no liability concerning the restoration of any stored content that has been lost.
Additional Precautions
- Any data stored within the unit can be lost as the result of equipment failure, incorrect operation, etc. To avoid inconvenience in the event of data loss, make a note of any important settings.
- Roland assumes no liability concerning the restoration of any stored content that has been lost.
- Use a reasonable amount of care when using the unit’s buttons, sliders, or other controls; and when using its jacks and connectors. Rough handling can lead to malfunctions.
- Never strike or apply strong pressure to the display.
- When disconnecting all cables, grasp the connector itself–never pull on the cable. This way you will avoid causing shorts, or damage to the cable’s internal elements.
- To avoid disturbing others nearby, try to keep the unit’s volume at reasonable levels.
Apparatus containing Lithium batteries
CAUTION
Danger of explosion if battery is incorrectly replaced. Replace only with the
same or equivalent type recommended by the manufacturer. Discard used
batteries according to the manufacturer’s instructions.
FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE STATEMENT
For the USA
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.
This equipment requires shielded interface cables in order to meet FCC class B limit. Any unauthorized changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
CAN ICES-3 (B)/NMB-3 (B)
For Canada
Manufacturer: Roland Corporation 2036-1 Nakagawa, Hosoe-cho, Kita-ku, Hamamatsu, Shizuoka 431-1304, JAPAN
Importer: Roland Corporation ENA 23 Zone 1 nr. 1620 Klaus-Michael Kuehnelaan 13, 2440 Geel, BELGIUM
Manufacturer: Roland Corporation 2036-1 Nakagawa, Hosoe-cho, Kita-ku, Hamamatsu, Shizuoka 431-1304, JAPAN
Importer: Roland Europe Group Limited Hive 2, 1530 Arlington Business Park, Theale, Reading, Berkshire. RG7 4SA United Kingdom
This symbol indicates that in EU countries, this product must be collected separately from household waste, as defended in each region. Products bearing this symbol must not be discarded together with household waste.
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