Roland ODB-3 User Manual

Owner's Manual
DCAC
AC & BATTERY
POWERED
FET
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Thank you, and congratulations on your choice of BOSS ODB-3 Bass OverDrive. Before using this unit, carefully read the sections entitled: “USING THE UNIT SAFELY”
Copyright © 1994 BOSS Corporation All right reserved. No part of this publication may be reproduced in any form without the permission of BOSS Corporation.
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FEATURES

The ODB-3 overdrive unit + designed specifically for electric bass guitar + creates solid, chest-resonating distortion!
Using the BALANCE Knob, you can adjust the balance between the Dry and Overdrive sounds. This capability gives you complete control of your sound, from soft and warm to hard and bright.
A 2-band equalizer allows you to control bass and treble frequencies independently.
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PANEL DESCRIPTIONS

1 2
3
4
5
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1. AC Adaptor Jack
Accepts connection of an AC Adaptor (op­tionally available BOSS PSA-Series). By using an AC Adaptor, you can play without being concerned about how much battery power you have left.
* You may find that it is a good idea to keep a
battery installed in the unit even while using
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an adaptor. That way your playing won't be disrupted even if the adaptor is accidentally disconnected.
* If you are going to use an AC adaptor, be sure
to use the specified unit (BOSS PSA-Series). Use of any other adaptor may result in dam­age, malfunction or electric shock. Also, if you are not going to be using it for an extended period of time, disconnect the AC adaptor from the AC outlet.
2. CHECK Indicator
This indicator shows whether an effect is ON/OFF, and also doubles as the Battery Check indicator. The indicator lights when an effect is ON. If this indicator goes dim or no longer lights while an effect is ON, the battery is near exhaustion and should be replaced imme­diately.
3. OUTPUT Jack
The output jacks are used to connect the unit to amplifiers or other devices.
4. Pedal Switch
This switch turns the effects ON/OFF.
5. Thumbscrew
This thumbscrew is loosened to open the pedal, allowing battery replacement. For instructions on how to replace the battery, please refer to “Changing the Battery.”
6. INPUT Jack
This jack accepts input signals (coming from a guitar, some other electric or elec­tronic musical instrument, or another ef­fects unit).
* The INPUT jack also serves as the power
switch. Power is turned on whenever a plug is inserted into the INPUT jack, and is turned off when the plug is disconnected. When not using the unit, you should disconnect any cord connected to the INPUT jack.
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LEVEL Knob
HIGH EQ Knob
LOW EQ Knob
BALANCE Knob
GAIN Knob
LEVEL Knob
This knob adjusts the level of the effect sounds. Set the knob so there is no volume difference between the effect and straight guitar sounds.
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HIGH EQ Knob
Use this knob to boost or cut higher frequencies; clockwise rotation boosts the higher frequencies.
LOW EQ Knob
Use this knob to boost or cut lower frequencies; clockwise rotation boosts the lower frequencies.
BALANCE Knob
This knob controls the output balance between Dry (straight) and Overdrive sounds. Counterclockwise rotation increases the Dry sound, while clockwise rotation increases the level of Overdrive sounds. When rotated fully counterclockwise (or clockwise), only the Dry (or Overdrive) sound will be obtained.
GAIN Knob
This knob adjusts the gain of the Dry or Overdrive sound. When you are using Dry sounds, this knob can adjust the amount of boost without distorting the sound. When you are using Overdrive sounds, the GAIN knob adjusts the depth of the distortion. Clockwise rotation increases the gain.

MAKING THE CONNECTIONS

Amplifier
AC Adaptor (PSA-Series ; Optional)
OUT 9V DC / 200mA
Electric Bass
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* Inserting a plug into the INPUT Jack will automatically switch the unit on. * 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.
* If there are batteries 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).
* Once the connections have been completed, turn on power to your various devices in the order
specified. By turning on devices in the wrong order, you risk causing malfunction and/or damage to speakers and other devices. When powering up: Turn on the power to your guitar amp last. When powering down: Turn off the power to your guitar amp first.
* Always make sure to have the volume level turned down before switching on power. Even with
the volume all the way down, you may still hear some sound when the power is switched on, but this is normal, and does not indicate a malfunction.
* When operating on battery power only, the unit’s indicator will become dim when battery power
gets too low. Replace the battery as soon as possible.
* The CHECK indicator shows whether the effect is being applied or not. It does not indicate
whether the power to the device is on or not.
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OPERATING THE UNIT

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When you have made the necessary
1.
connections, set the knobs as shown in the illustration.
2. Depress the pedal switch to turn the
effect on. (Make sure that the CHECK Indicator lights.)
3. Adjust the output balance between the
Dry and Overdrive sounds using the BALANCE Knob.
4. Adjust the gain of the Dry or Overdrive
sound using the GAIN Knob.
5. Adjust the tone using the HIGH and
LOW EQ Knobs.
6. Adjust the LEVEL Knob so there will be
no volume difference between the ef­fect and straight bass sounds.
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CHANGING THE BATTERY

When the indicator goes dim or no longer lights while an effect is on, it means that the battery is nearly dead and must be replaced. Replace the battery following the steps below.
Thumbscrew
Pedal
Spring Base
1.Loosen the thumbscrew at the front of the
pedal, then lift the pedal upwards to open the unit.
* The thumbscrew can be left in the pedal
while changing the battery.
2.Remove the old battery from the battery hous-
ing, and remove the snap cord connected to it.
Battery Snap Cord
Battery Snap
9V Battery
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Battery Housing
Coil Spring
Guide Bush Hole
3.Connect the snap cord to the new battery, and
place the battery inside the battery housing.
* Be sure to carefully observe the battery+s
polarity (+ versus -).
4.Slip the coil spring onto the spring base on the
back of the pedal, then close the pedal.
* Carefully avoid getting the snap cord caught
in the coil spring.
5.Finally, insert the thumbscrew into the
guide bush hole and fasten it securely.

SAMPLE SETTINGS

Natural OverDrive
CHECK
EQLEVEL
BALANCE GAIN
MIN MAX
MIN MAX
CUT BOOST
CUT BOOST
HIGH LOW
EQLEVEL
HIGH LOW
CHECK
DRY OD
BALANCE GAIN
DRY OD
MIN MAX
MIN MAX
Fuzz Sound
MIN MAX
Picking RiffDrived Slapping Play
MIN MAX
CHECK
EQLEVEL
CUT BOOST
HIGH LOW
CHECK
EQLEVEL
CUT BOOST
HIGH LOW
BALANCE GAIN
DRY OD
MIN MAX
BALANCE GAIN
DRY OD
MIN MAX
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Booster HeavyDrive
CHECK
EQLEVEL
BALANCE GAIN
MIN MAX
CUT BOOST
HIGH LOW
DRY OD
MIN MAX
MIN MAX
Slapping Play Solo Play
CHECK
EQLEVEL
BALANCE GAIN
MIN MAX
CUT BOOST
HIGH LOW
DRY OD
MIN MAX
MIN MAX
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CHECK
EQLEVEL
CUT BOOST
HIGH LOW
CHECK
EQLEVEL
CUT BOOST
HIGH LOW
BALANCE GAIN
DRY OD
MIN MAX
BALANCE GAIN
DRY OD
MIN MAX

SETTING MEMO

MIN MAX
MIN MAX
CHECK
EQLEVEL
CUT BOOST
HIGH LOW
CHECK
EQLEVEL
CUT BOOST
HIGH LOW
BALANCE GAIN
DRY OD
MIN MAX
BALANCE GAIN
DRY OD
MIN MAX
MIN MAX
MIN MAX
CHECK
EQLEVEL
CUT BOOST
HIGH LOW
CHECK
EQLEVEL
CUT BOOST
HIGH LOW
BALANCE GAIN
DRY OD
MIN MAX
BALANCE GAIN
DRY OD
MIN MAX
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SPECIFICATIONS

ODB-3: Bass OverDrive
Nominal Input Level ................. -20 dBu
Input Impedance ...................... 1 M
Nominal Output Level .............. -20 dBu
Output Impedance ................... 1 k
Equivalent Input Noise Level .... -110 dBu (IHF-A, Typ.)
Controls.................................... Pedal Switch
Indicator................................... CHECK Indicator (serves also as battery check indicator)
Connectors ............................... INPUT Jack
Power Supply ........................... DC 9 V: Dry Battery 9 V type(6F22/9 V), AC Adaptor
Current Draw ........................... 15 mA (DC 9 V)
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LEVEL Knob HIGH EQ Knob LOW EQ Knob BALANCE Knob GAIN Knob
OUTPUT Jack AC Adaptor Jack (DC 9 V)
* Expected battery life under continuous use :
Carbon : 26 hours
These figures will vary depending on the actual conditions of use.
Dimensions............................... 73 (W) x 129 (D) x 59 (H) mm
Weight...................................... 420 g / 15 oz (including battery)
Accessories ............................... Owner’s Manual
Options .................................... AC Adaptor PSA-Series
* 0 dBu = 0.775 V rms * In the interest of product development, the specifications and/or appearance fo this uit are subject
to change without prior notice.
2-7/8 (W) x 5-1/8 (D) x 2-3/8 (H) inches
Dry Battery 9 V type (6F22/9 V) Leaflet
(“USING THE UNIT SAFELY,” “IMPORTANT NOTES,” and “Information”)
This product complies with the requirements of
For EU Countries
European Directive 89/336/EEC.
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G601724903
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