Boss ME-20B Owner’s Manual PDF

Thank you, and congratulations on your choice of BOSS ME-20B Bass Multiple Effects.

Before using this unit, carefully read the sections entitled: USING THE UNIT SAFELY and IMPORTANT NOTES . These sections provide important information concerning the proper operation of the unit. Additionally, in order to feel assured that you have gained a good grasp of every feature provided by your new unit, this manual should be read in its entirety. The manual should be saved and kept on hand as a convenient reference.

Main Features

Simple OperationWorks Like a Compact Pedal Effects

All you need to do to get the sound you want is to select an effect, then tweak it using the knobsbasically, this is the same simple, intuitive operation offered by compact pedal effects.

BASS ENHANCE Function

This function strengthens the basss dynamics with the press of a single button.

You can also switch the effect with an optional footswitch pedal, a convenient feature for live performances.

EZ EDIT for Quick Sound Creation

EZ EDIT is a feature that allows you to creating sounds quickly and easily. You can adjust a combination of effect parameters with just a single knob.

Memory Function

Up to thirty of the sounds you create can be stored in the ME-20Bs User memory. In Memory mode, you can use the pedals to instantly select a stored sound.

AUX IN Jack

Thanks to this feature, its simple to play along with CD and MP3 players and other equipment.

Battery Powered Operation

The ME-20B runs on battery power (six AA dry cells), allowing you to use it anywhere you play. You can also use the optional AC adaptor, giving you two ways to power the ME-20B, so you can play for extended periods during live performances.

Copyright 2007 BOSS CORPORATION

All rights reserved. No part of this publication may be reproduced in any form without the written permission of BOSS CORPORATION.

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ME-20B_e.book 2

001 Before using this unit, make sure to read

the instructions below, and the Owners Manual.

......................................................................................................... 002c Do not open (or modify in any way) the

unit or its AC adaptor.

......................................................................................................... 003 Do not attempt to repair the unit, or

replace parts within it (except when this manual provides specific instructions directing you to do so). Refer all servicing to your retailer, the nearest Roland Service Center, or an authorized Roland distributor, as listed on the Information page.

......................................................................................................... 004 Never use or store the unit in places that are:

Subject to temperature extremes (e.g., direct sunlight in an enclosed vehicle, near a heating duct, on top of heat- generating equipment); or are

Damp (e.g., baths, washrooms, on wet floors); or are

Humid; or are Exposed to rain; or are Dusty; or are Subject to high levels of vibration.

......................................................................................................... 014 Protect the unit from strong impact.

(Do not drop it!)

......................................................................................................... 013 In households with small children, an

adult should provide supervision until the child is capable of following all the rules essential for the safe operation of the unit.

.........................................................................................................

007 Make sure you always have the unit

placed so it is level and sure to remain stable. Never place it on stands that could wobble, or on inclined surfaces.

........................................................................................................ 008b Use only the specified AC adaptor (PSA

series), and make sure the line voltage at the installation matches the input voltage specified on the AC adaptors body. Other AC adaptors may use a different polarity, or be designed for a different voltage, so their use could result in damage, malfunction, or electric shock.

........................................................................................................ 009 Do not excessively twist or bend the

power cord, nor place heavy objects on it. Doing so can damage the cord, producing severed elements and short circuits. Damaged cords are fire and shock hazards!

........................................................................................................ 010 This unit, either alone or in combination

with an amplifier and headphones or speakers, may be capable of producing sound levels that could cause permanent hearing loss. Do not operate for a long period of time at a high volume level, or at a level that is uncom- fortable. If you experience any hearing loss or ringing in the ears, you should immediately stop using the unit, and consult an audiologist.

........................................................................................................ 015 Do not force the units power-supply cord

to share an outlet with an unreasonable number of other devices. Be especially careful when using extension cordsthe total power used by all devices you have connected to the extension cords outlet must never exceed the power rating (watts/amperes) for the extension cord. Excessive loads can cause the insulation on the cord to heat up and eventually melt through.

........................................................................................................

Used for instructions intended to alert the user to the risk of injury or material damage should the unit be used improperly.

* Material damage refers to damage or other adverse effects caused with respect to the home and all its furnishings, as well to domestic animals or pets.

Used for instructions intended to alert the user to the risk of death or severe injury should the unit be used improperly.

The symbol alerts the user to things that must be carried out. The specific thing that must be done is indicated by the design contained within the circle. In the case of the symbol at left, it means that the power- cord plug must be unplugged from the outlet.

The symbol alerts the user to important instructions or warnings.The specific meaning of the symbol is determined by the design contained within the triangle. In the case of the symbol at left, it is used for general cautions, warnings, or alerts to danger.

The symbol alerts the user to items that must never be carried out (are forbidden). The specific thing that must not be done is indicated by the design contained within the circle. In the case of the symbol at left, it means that the unit must never be disassembled.

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ME-20B_e.book 3

011 Do not allow any objects (e.g., flammable

material, coins, pins); or liquids of any kind (water, soft drinks, etc.) to penetrate the unit.

......................................................................................................... 012c Immediately turn the power off, remove

the AC adaptor from the outlet, and request servicing by your retailer, the nearest Roland Service Center, or an authorized Roland distributor, as listed on the Information page when: The AC adaptor or the power-supply cord has

been damaged; or If smoke or unusual odor occurs Objects have fallen into, or liquid has been spilled

onto the unit; or The unit has been exposed to rain (or otherwise

has become wet); or The unit does not appear to operate normally or

exhibits a marked change in performance. ......................................................................................................... 016 Before using the unit in a foreign country,

consult with your retailer, the nearest Roland Service Center, or an authorized Roland distributor, as listed on the Information page.

......................................................................................................... 019 Batteries must never be recharged,

heated, taken apart, or thrown into fire or water.

.........................................................................................................

101b The unit and the AC adaptor should be

located so their location or position does not interfere with their proper ventilation.

......................................................................................................... 102d Always grasp only the output plug or the

body of the AC adaptor when plugging into, or unplugging from, this unit or an outlet.

......................................................................................................... 103b At regular intervals, you should unplug

the AC adaptor and clean it by using a dry cloth to wipe all dust and other accumulations away from its prongs. Also, disconnect the power plug from the power outlet whenever the unit is to remain unused for an extended period of time. Any accumulation of dust between the power plug and the power outlet can result in poor insulation and lead to fire.

.........................................................................................................

104 Try to prevent cords and cables from

becoming entangled. Also, all cords and cables should be placed so they are out of the reach of children.

........................................................................................................ 106 Never climb on top of, nor place heavy

objects on the unit.

........................................................................................................ 107d Never handle the AC adaptor body, or its

output plugs, with wet hands when plugging into, or unplugging from, an outlet or this unit.

........................................................................................................ 108b Before moving the unit, disconnect the

AC adaptor and all cords coming from external devices.

........................................................................................................ 109b Before cleaning the unit, turn off the

power and unplug the AC adaptor from the outlet (p. 12).

........................................................................................................ 110b Whenever you suspect the possibility of

lightning in your area, disconnect the AC adaptor from the outlet.

........................................................................................................ 111: Selection If used improperly, batteries may

explode or leak and cause damage or injury. In the interest of safety, please read and observe the following precau- tions (p. 11). Carefully follow the installation instruc-

tions for batteries, and make sure you observe the correct polarity.

Avoid using new batteries together with used ones. In addition, avoid mixing different types of batteries.

Remove the batteries whenever the unit is to remain unused for an extended period of time.

If a battery has leaked, use a soft piece of cloth or paper towel to wipe all remnants of the discharge from the battery compartment. Then install new batteries. To avoid inflammation of the skin, make sure that none of the battery discharge gets onto your hands or skin. Exercise the utmost caution so that none of the discharge gets near your eyes. Immediately rinse the affected area with running water if any of the discharge has entered the eyes.

Never keep batteries together with metallic objects such as ballpoint pens, necklaces, hairpins, etc.

........................................................................................................ 112 Used batteries must be disposed of in

compliance with whatever regulations for their safe disposal that may be observed in the region in which you live.

........................................................................................................

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IMPORTANT NOTES

In addition to the items listed under "USING THE UNIT SAFELY" on page 23, please read and observe the following:

Power Supply: Use of Batteries 301 Do not connect this unit to same electrical outlet

that is being used by an electrical appliance that is controlled by an inverter (such as a refrigerator, washing machine, microwave oven, or air condi- tioner), or that contains a motor. Depending on the way in which the electrical appliance is used, power supply noise may cause this unit to malfunction or may produce audible noise. If it is not practical to use a separate electrical outlet, connect a power supply noise filter between this unit and the electrical outlet.

302 The AC adaptor will begin to generate heat after

long hours of consecutive use. This is normal, and is not a cause for concern.

303a The use of an AC adaptor is recommended as the

units power consumption is relatively high. For battery operation, we recommend the use of alkaline batteries.

304b Batteries should always be installed or replaced

before connecting any other devices. This way, you can prevent malfunction and/or damage to speakers or other devices.

306b Batteries are supplied with the unit. The life of

these batteries may be limited, however, since their primary purpose was to enable testing.

307 Before connecting this unit to other devices, turn

off the power to all units. This will help prevent malfunctions and/or damage to speakers or other devices.

Placement 351 Using the unit near power amplifiers (or other

equipment containing large power transformers) may induce hum. To alleviate the problem, change the orientation of this unit; or move it farther away from the source of interference.

352a This device may interfere with radio and

television reception. Do not use this device in the vicinity of such receivers.

352b Noise may be produced if wireless communica-

tions 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.

355b 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.

360 Depending on the material and temperature of the

surface on which you place the unit, its rubber feet may discolor or mar the surface. You can place a piece of felt or cloth under the rubber feet to prevent this from happening. If you do so, please make sure that the unit will not slip or move accidentally.

Maintenance 401a For everyday cleaning wipe the unit with a soft,

dry cloth or one that has been slightly dampened with water. To remove stubborn dirt, use a cloth impregnated with a mild, non-abrasive detergent. Afterwards, be sure to wipe the unit thoroughly with a soft, dry cloth.

402 Never use benzine, thinners, alcohol or solvents of

any kind, to avoid the possibility of discoloration and/or deformation.

Repairs and Data 452 Please be aware that all data contained in the

units memory may be lost when the unit is sent for repairs. Important data should always be written down on paper (when possible). During repairs, due care is taken to avoid the loss of data. However, in certain cases (such as when circuitry related to memory itself is out of order), we regret that it may not be possible to restore the data, and BOSS/Roland assumes no liability concerning such loss of data.

Additional Precautions 551 Please be aware that the contents of memory can

be irretrievably lost as a result of a malfunction, or the improper operation of the unit. To protect yourself against the risk of loosing important data, we recommend that you periodically written down a important data onto paper.

552 Unfortunately, it may be impossible to restore the

contents of data that was stored in the units memory once it has been lost. BOSS/Roland Corporation assumes no liability concerning such loss of data.

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IMPORTANT NOTES

ME-20B_e.book 5

553 Use a reasonable amount of care when using the

units buttons, sliders, or other controls; and when using its jacks and connectors. Rough handling can lead to malfunctions.

556 When connecting / disconnecting all cables, grasp

the connector itselfnever pull on the cable. This way you will avoid causing shorts, or damage to the cables internal elements.

558a To avoid disturbing your neighbors, try to keep

the units volume at reasonable levels. You may prefer to use headphones, so you do not need to be concerned about those around you (especially when it is late at night).

559a 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 equiv- alent packaging materials.

562 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.

Printing Conventions and icons in This Manual Text or numerals enclosed in square brackets [ ]

Indicate buttons. [WRITE] WRITE button

Indicates information that you should be aware of when using the ME-20B.

Indicates supplementary information about an operation.

Indicates information about a convenient operation.

(p.**)

Indicates a reference page.

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ME-20B_e.book 6

Contents

Main Features ....................1

IMPORTANT NOTES ............4

Names of Things and What They Do .............................7

Front Panel.....................................7 Rear Panel ...................................10

Installing Batteries ...........11

Connections .....................12 Turning On the Power ..................13 Turning Off the Power ..................13

Tuning the Bass (Bypass/Tuner) ...............14

Introduction to Effects and Parameters ......................16

About the Effect Connection Sequence .....................................16 BASS ENHANCE.........................16 SFX ..............................................17 COMP/DRIVE (Compressor/Drive).....................18 DELAY/MOD................................19 EQ (Equalizer)..............................20 WAH.............................................21 NS (Noise Suppressor) ................21

THRESHOLD ...................................21

MASTER LEVEL..........................21

Creating Sounds Easily (EZ EDIT)..........................22

Saving and Calling Up Tones (Memory Mode) .............. 23

Manual Mode and Memory Mode .. 23 Switching Between Manual and Memory Mode.............................. 23 Patches and Banks...................... 23 Saving Tones (Write)................... 24 Calling Up and Using Saved Sounds (Patch Change) ........................... 25

Switching Numbers......................... 25 Switching Banks............................... 25

Changing Patch Settings (Patch Edit Mode)....................... 26

Other Functions............... 27 Using Footswitch Pedals ............. 27

Connecting a Footswitch Pedal ..... 27

Returning the ME-20B to Its Factory Settings (Factory Reset).............. 29 Adjusting the Expression Pedal... 30

Patch List ........................ 31

Factory Settings .............. 32

Blank Chart..................... 34

Troubleshooting .............. 36

Specifications .................. 37

Index.............................. 38

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ME-20B_e.book 7

Names of Things and What They Do

Front Panel

fig.ME-20B-front-panel.eps_70

1. Parameter Knobs These adjust parameters selected with the effect buttons and EZ EDIT button. You can check a parameters current value by holding down its effect select button and turning the knob (this displays the value without adjusting it).

3

4

7 8 10

11 12

13 14

15 16

1 2

5

6

9

You can change how the knobs respond when turned.

1. Switch to Manual mode (p. 23).

2. Hold down the [EDIT/EXIT] button and press Number Pedal 1.

One of the following appears in the display. n0: The value changes immediately as the knob is turned (factory setting). n1: The value changes once the knob is turned past the position

corresponding to the currently set value. 3. Press [ ] [ ] to change the value of the setting as desired.

4. Press [WRITE]. The setting is saved, and the ME-20B returns to Manual mode.

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Names of Things and What They Do

ME-20B_e.book 8

2. Effect Select Indicators Show effects you can set using the parameter knobs.

3. Effect Select Buttons Press these buttons to select the effect whose settings you want to change.

4. EZ EDIT Indicator Shows whether EZ EDIT is on or off.

5. EZ EDIT Button Press this to use EZ EDIT (p. 22).

6. Display Shows the values of parameter settings , bank numbers, and other information.

7. EDIT/EXIT Button Press this to edit patches in Memory mode (or exit editing).

8. WRITE Button Press this to save the current sound in User memory.

3

4

7 8 10

11 12

13 14

15 16

1 2

5

6

9

8

Names of Things and What They Do

ME-20B_e.book 9

9. / Buttons Use these to adjust parameters in the various operating modes. Manual mode: NS THRESHOLD Memory mode: Bank (NS THRESHOLD when editing patches) TUNER: Reference pitch

10. WAH Indicator Shows whether the wah effect is on or off.

11. BASS ENHANCE Indicator Shows whether the bass enhance is on or off.

12. BASS ENHANCE Button Switches the bass enhance on and off.

13. MASTER LEVEL Knob Adjusts the volume of the output.

14. Expression Pedal Controls the volume level (volume pedal). Firmly depressing the front end of the pedal switches WAH ON/OFF. When the wah effect is on, the pedal functions as a wah pedal. When WAH is on: Functions as a wah pedal. When WAH is off: Functions as a volume pedal.

When operating the expression pedal, be careful not to get your fingers pinched between the movable part and the panel. In households with small children, an adult should provide supervision and guidance until the child is capable of following all the rules essential for the safe operation of the unit.

15. Pedal Indicators Show whether the corresponding effect is on or off. In Memory mode, they indicate the current patch number.

16. Effect/Number Pedals Switch the corresponding effects on and off. When the ME-20B is in Memory mode, these switch correspondingly numbered patches.

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Names of Things and What They Do

ME-20B_e.book 10

Rear Panel fig.ME-20B-rear-panel.eps_70

1. SECURITY LOCK ( ) http://www.kensington.com/

2. INPUT Jack Connect your bass here.

* The INPUT jack doubles as a power switch. Inserting a plug into the INPUT jack turns on the power; the power is switched off when the plug is disconnected. Be sure to unplug the cable from this jack when the ME-20B is not in use.

3. AUX IN Jack Connect a CD or MP3 player here to practice with sounds from these devices.

* You cannot adjust the volume of the AUX input. Adjust the volume on the connected device.

* Do not use a cable that contains a resistor to connect external devices to the AUX IN jack. Use of such cables may make sounds from connected devices inaudible.

* No effects are applied to the AUX input signal.

4. OUTPUT L /MONO, R Jacks Connect an amp or mixer here.

5. PHONES (Headphones) Jack Connect stereo headphones here.

6. FOOT SW (Footswitch) Jack Connect an optional footswitch (such as the FS-6) here. The footswitch functions differently in Manual mode and Memory mode. When in Manual mode: Switches the BASS ENHANCE on/off.

Switches the Bypass/Tuner on/off. When in Memory mode: Bank up, Bank down

7. DC IN (AC Adaptor) Jack Connect the optional AC adaptor (PSA series) here.

* Use only the specified AC adaptor (PSA series).

3 4 71 2 5 6

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ME-20B_e.book 11

Installing Batteries

Insert the batteries as shown in figure, being careful to orient the batteries correctly.

fig.replace-battery.eps_38

When the batteries run down, bt appears in the display. When this occurs, install with new batteries.

When turning the unit over, place some newspapers, magazines, or other suitable material under the four corners or at both ends to prevent damage to the buttons and controls. Also, try to position the unit so no buttons or controls can get damaged.

When turning the unit over, handle it with care to avoid dropping it or allowing it to fall or tip over.

Make sure the + and - ends of the batteries are oriented correctly. Use six AA-type dry cells when replacing the batteries. Avoid using new and used batteries together or combinations of different types of

batteries. Doing so may result in fluid leakage. Batteries are supplied with the unit. Since the primary purpose of these batteries is to

confirm operation of the unit, their battery life may be limited.

Continuous usage time under battery power is about 13 hours with alkaline batteries and about 3.5 hours with manganese batteries. (This may vary according to usage conditions.)

11

ME-20B_e.book 12

Connections

fig.ME-20B-connect-e.eps_70

* When using an AC adaptor, be sure to use only the specified type (PSA series). Using an adaptor other than the specified type may cause malfunction.

* To prevent malfunction and/or damage to speakers or other devices, always turn down the volume and turn off the power to all devices before making any connections.

* The INPUT jack doubles as a power switch. Inserting a plug in the INPUT jack turns on the power; the power is switched off when the plug is disconnected. Be sure to unplug the cable from this jack when the ME-20B is not in use.

* Some connection cables contain resistors. When connection cables with resistors are used, the sound level may be extremely low, or impossible to hear. For information on cable specifications, contact the manufacturer of the cable.

* When youre using a single bass amp, connect it to the L/MONO jack.

For more information about connecting a footswitch pedal to the footswitch jack, refer to Using Footswitch Pedals (p. 27).

Footswitch (FS-6, etc.)

Phones Jack

CD/MP3 player

Bass AmpBass

Stereo Headphones

AC adaptor (PSA series)

12

Connections

ME-20B_e.book 13

Turn on power to the various devices in the order specified. Turning on devices in the wrong order may cause malfunction and/or damage to speakers and other devices.

Turning On the Power 1. Completely turn down the volume on all devices and connect the external

devices.

* Dont insert the plug into the INPUT jack yet.

2. Insert the plug into the INPUT jack.

* Inserting a plug into the INPUT jack switches on the power.

3. Turn on the power to the CD or MP3 player or other input device.

4. Lastly, turn on the power to the bass amp or other output device.

5. Following this, adjust the volume of each device.

* This unit is equipped with a protection circuit. A brief interval (a few seconds) after power-

up is required before the unit will operate normally.

Turning Off the Power 1. Completely turn down the volume of all devices.

2. First, turn off the power to the bass amp and other output devices.

3. Turn off the power to the CD or MP3 player or other input device.

4. Pull out the plug from the INPUT jack.

* Disconnecting the plug from the INPUT jack switches off the power.

13

ME-20B_e.book 14

Tuning the Bass (Bypass/Tuner)

The ME-20B features a built-in chromatic auto-tuner that allows you to tune your bass easily without changing any of your connections. Additionally, in Tuner mode, the sound output is the same as the input sound, with no effects applied (bypass). You can use the expression pedal to turn down the volume, making it unnecessary for you to turn down your bass amps volume each time you tune.

1. Press the Number 1 and 2 pedals simultaneously to switch to Tuner mode. The tuner appears in the display, and any deviation from the pitch is indicated by the Tuning guide. fig.7seg-tuner1.eps

2. If necessary, you can change the reference pitch. Press [ ] [ ] and the current reference pitch is indicated in the display for a brief length of time. By continuing with this operation, you can change the reference pitch, in one Hertz units, to any value from 435 Hz to 445 Hz. The setting is saved automatically, so there is no need to make this setting each time you tune.

* The reference pitch was set to 440 Hz (Display: 40) when the unit was shipped from the factory.

3. Play a single note on the string to be tuned; play the string open. The name of the note closest to the pitch of the string played appears in the display.

* Use your hand or other means to mute the other strings. You may be unable to tune the string accurately if other strings are vibrating during tuning.

Display 3545

Pitch (Hz) 435445

1 27

Tuning guide

14

Tuning the Bass (Bypass/Tuner)

ME-20B_e.book 15

fig.7seg-tuner3.eps

4. First do a rough tuning so that the name of the note for the string appears in

the display.

(General Tuning)

5. Tune each string more accurately until both of the tuning guides are lit.

* The larger the difference between the pitch of the string youre playing and the correct pitch for the note shown in the display, the faster the tuning guide flashes. As you get closer to the correct pitch, the pace of the tuning guides flashing slows down. fig.7seg-tuner3.eps

6. Repeat Steps 35 to tune the other strings.

One useful technique that makes tuning less confusing is to start slightly under the target pitch and then tune upwards little by little until the string is in tune.

7. Press the Number 1 and 2 pedals simultaneously to return to the previous mode.

You can also return to the previous mode by pressing [EDIT/EXIT].

Lo-B 4th 3rd 2nd 1st Hi-C

B E A D G C

(C) (C ) (D) (D ) (E) (F)

(F ) (G) (G ) (A) (A ) (B)

Too high

Tuned

Too low

15

ME-20B_e.book 16

Introduction to Effects and Parameters

About the Effect Connection Sequence The optimal sequence for connecting effects is determined automatically based on the effect settings.

BASS ENHANCE This effect makes the bass frequencies more prominent in response to changes in the input level.

To adjust the amount of effect thats applied when the effect is on, hold down

[BASS ENHANCE] and press [ ] or [ ].

DEFRETTER OCTAVECOMPRESSOR OVERDRIVE / DISTORTION

SYNTH1 / SYNTH2

(COMP / DRIVE) (COMP / DRIVE) (COMP / DRIVE)

EQ T.WAH UP /

T.WAH DOWN / T.WAH EDGE

NOISE SUPPRESSOR

(DELAY / MOD)

099ms DELAY / 100700ms DELAY /

PHASER / FLANGER / CHORUS /

CHO+DELAY / REVERB

FOOT VOLUME

(SFX)

(SFX)

BASS ENHANCE

WAH

(SFX)

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Introduction to Effects and Parameters

ME-20B_e.book 17

SFX These effects change the characteristics of the bass sound itself.

SFX Type List

fig.FX-SFX.eps_50

fig.FX-SFX2.eps_90

TYPE Descriptions

1. T.WAH UP The filter shifts to higher frequencies in response to the input.

2. T.WAH DOWN The filter shifts to lower frequencies in response to the input.

3: T.WAH EDGE Gives a filter with a stronger effect.

4: DEFRETTER This effect changes the sound to a fretless bass tone.

5: OCTAVE This effect adds a bass note lowered by one octave, adding greater body to the sound.

Descriptions 1. T.WAH UP Adjusts the sensitivi- ty for the tone change. Turning this further to the right (clock- wise) creates a greater change in tone even when the strings are picked lightly. .

Adjusts the filter fre- quency at which applica- tion of the effect begins. Turning this further to the right raises the fre- quency at which the ef- fect is applied.

Adjusts the amount of effect applied. Turning this to the right (clockwise) pro- duces a stronger tone which emphasizes the wah effect more.

2. T.WAH DOWN

3: T.WAH EDGE

4: DEFRETTER Adjusts the amount of the fretless effect applied to the input sound.

Adjusts the tone. Turning this to the left (counter- clockwise) creates a milder tone; turning it to the right produces a sharper tone.

Adjusts the defretter volume level.

5: OCTAVE Adjusts the volume of the direct sound. Turning the knob to the right increases the volume.

Adjusts the tone of the oc- tave sound. Turning this to the left creates a milder tone; turning it to the right produces a sharper tone.

Adjusts the volume of the octave sound.

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Introduction to Effects and Parameters

ME-20B_e.book 18

COMP/DRIVE (Compressor/Drive) These effects adjust the signal level to produce more even dynamics and add distortion.

COMP/DRIVE Type List

fig.FX-COMP.eps_50

fig.FX-COMP2.eps_90

TYPE Descriptions

1: COMPRESSOR This effect evens out the input signal levels, thus evening out the sound.

2: OVERDRIVE This creates a sweet, mild distortion like that from a tube amp.

3: DISTORTION This is a sharp distortion that provides rich sustain.

4: OD+DIRECT (Overdrive+Direct)

This mixes the direct and overdrive sounds, producing a distortion with greater body.

5: SYNTH 1 This is a synth bass sound with light filtering applied.

6: SYNTH 2 This is a synth bass sound with heavy filtering applied.

Descriptions 1: COMPRESSOR Adjusts the sustain. Turning this to the right (clockwise) cre- ates a long sustain; turning this to the left (counterclockwise) produces a limiter ef- fect.

Adjusts the tone. Turning this to the left creates a warmer tone; turning it to the right produces a brighter tone.

Adjusts the volume.

2: OVERDRIVE Adjusts the amount of effect applied. Turning this to the right boosts the dis- tortion and increases the volume.

3: DISTORTION

4: OD+DIRECT

5: SYNTH1 Adjusts the amount of filtering applied.

Adjusts the frequency at which the harmon- ics are cut (the cutoff frequency).

6: SYNTH2

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Introduction to Effects and Parameters

ME-20B_e.book 19

DELAY/MOD These are spatial effects that let you do things like add delayed sound to the input sound, add body to the sound, or add modulation to the sound. DELAY/MOD Type List

fig.FX-DELAY.eps_50

fig.FX-DELAY2.eps_90

TYPE Descriptions 1: 099 ms DELAY Delay sound with a delay time from 0 to 99 ms. 2: 100700 ms DELAY Delay sound with a delay time from 100 to 700 ms. 3: PHASER This creates a sound with a shifting phase, adding a twisting warp effect to the sound. 4: FLANGER This effect adds a subtle type of motion that creates a sound similar to the ascent/

descent sounds of a jet plane. 5: CHORUS This effect adds a subtle wavering to the sound, transforming it into a beautiful

sound with breadth and body. 6: CHO+DELAY An effect combining chorus and delay.

The delay time can be set within the range of 100 ms to 700 ms. * The chorus setting is fixed.

7: REVERB An effect that adds reverberation to the sound.

Descriptions 1: 099 ms DELAY The delay time can be set in increments of 1 ms.

Adjusts the number of repeats of the de- lay sound. Turning the knob to the right increases the number of times the delay is repeated.

Adjusts the volume of the effect sound.

2: 100700 ms DELAY

The delay time can be set in increments of 10 ms. In the display, the value is shown as the number of 10 ms units (1070).

3: PHASER Adjusts the period of the undulation cycle. Turning the knob to the right increases the rate.

Adjusts the depth of the undulation. Turning the knob to the right in- creases the depth.

Adjusts the intensity of the unique charac- teristics.4: FLANGER

5: CHORUS Adjusts the period of the wavering cycle. Turning the knob to the right increases the rate.

Adjusts the depth of the wavering sound. Turn- ing the knob to the right increases the depth.

Adjusts the volume of the effect sound.

6: CHO+DELAY The delay time can be set in increments of 10 ms. In the display, the value is shown as the number of 10 ms units (1070).

Adjusts the number of repeats of the delay sound. Turning the knob to the right increases the number of times the de- lay is repeated.

7: REVERB Adjusts the length (reverb time) of the reverberation.

Adjusts the tone quality of the rever- beration. Turning the knob to the right cre- ates a brighter sound.

19

Introduction to Effects and Parameters

ME-20B_e.book 20

EQ (Equalizer) This effect adjusts the tone quality. Turning the knob to the right (clockwise) boosts the volume in the corresponding frequency range; turning it counterclockwise cuts the volume. Placing all parameter knobs at the center produces a flat response.

fig.FX-EQ.eps_50

fig.FX-EQ2.eps_90

Descriptions Adjusts the tone quality of the low- frequency range.

Adjusts the tone quality of the low- mid-frequency range.

Adjusts the tone quality of the high- mid-frequency range.

Adjusts the tone quality of the high- frequency range.

20

Introduction to Effects and Parameters

ME-20B_e.book 21

WAH This effect creates a wah effect using the pedal controller. Stepping down on the pedal creates a brighter sound, while releasing the pedal produces a muffled sound. When the wah effect is on, the pedal functions as a wah pedal. When WAH is on: Functions as a wah pedal. When WAH is off: Functions as a volume pedal.

NS (Noise Suppressor) This effect suppresses noise and hum from the pickups.

THRESHOLD

This adjusts the effect in response to the level of noise. Increase the value when there is a considerable amount of noise. Decrease the value when there isnt that much noise. A value of 0 switches off the noise suppressor.

* Setting the value higher than necessary may result in no output of sounds when the bass

volume is low.

* Adjust this value until the decay of the bass sound is as natural as possible.

MASTER LEVEL

This adjusts the level of the output from the ME-20B.

* Raising the MASTER LEVEL knob too much may result in sound distortion.

* When the effects are all off, input and output are at the same levels as when the MASTER

LEVEL knob is at the center position.

* The setting of the MASTER LEVEL knob is stored in memory for each patch (p. 23).

21

ME-20B_e.book 22

Creating Sounds Easily (EZ EDIT)

EZ EDIT is a feature for creating sounds quickly and easily. You can make adjust a combination of effect parameters with just a single knob.

fig.ME-20B-ezedit1.eps_55

1. Press [EZ EDIT].

2. Press the effect pedal to switch the effect ON/OFF setting.

3. Change the sound by turning the knob for the effect whose settings you want

to change.

4. Switch the sounds as needed by repeating Steps 2 and 3.

EZ EDIT Setting List NO. SFX COMP/DRIVE DELAY/MOD EQ

1 T.WAH UP LIGHT LIGHT COMP CHORUS FLAT 2 T.WAH UP DEEP DEEP COMP DEEP PHASER SLAP 3 T.WAH DOWN LIGHT MILD OVERDRIVE SLOW PHASER MELODY 4 T.WAH DOWN DEEP HARD OVERDRIVE LIGHT FLANGER BASS BOOST 5 T.WAH EDGE LIGHT MILD DISTORTION DEEP FLANGER MILD TONE 6 T.WAH EDGE DEEP HARD DISTORTION REVERB BRIGHT TONE 7 BRIGHT DEFRETTER DIR + OVERDRIVE DOUBLING - 8 WARM DEFRETTER SAW SYNTH MEDIUM DELAY (360ms) - 9 OCTAVE LIGHT FILTER SYNTH 1 MEDIUM DELAY (500ms) - 10 OCTAVE DEEP FILTER SYNTH 2 CHORUS + DELAY -

2

13

22

ME-20B_e.book 23

Saving and Calling Up Tones (Memory Mode)

Manual Mode and Memory Mode When the power is turned on, the ME-20B starts up in Manual mode. In this mode, you can use the pedals to switch effects on or off, and you can manipulate the knobs to directly obtain the sound you want. The ME-20B also features a Memory mode, which you can use in live performances and other situations where you want to be able to switch settings instantly to suit the particular circumstances.

Switching Between Manual and Memory Mode fig.ME-20B-manual-mode1-e.eps_26

When in Manual mode, simultaneously press Number Pedals 2 and 3 to switch to Memory mode. The MEMORY indicator lights.

When in Memory mode, simultaneously press the Number Pedals 2 and 3 to switch to Manual mode. The MEMORY indicator disappears.

Patches and Banks fig.ME-20B-patch.eps-e_75A collection of sound parameters that can be handled

together is called a patch. In Memory mode, you can call up patches to switch the sound instantly. On the ME-20B, you can create up to 30 patches. These are grouped together into units called banks. A single bank contains three patches, which correspond to the respective number pedals.

Press simultaneously

Lit

Bank 10

Patch

Bank 3

Patch

Bank 2

Patch

Bank 1

Patch Patch Patch

23

Saving and Calling Up Tones (Memory Mode)

ME-20B_e.book 24

Saving Tones (Write) The steps you need to follow in order to save the patches youve created using the panels knobs and pedals in User memory is called the Write procedure. You can carry out the Write procedure in both Manual mode and Memory mode. Carrying out the Write procedure results in the loss of any settings previously existing in the targeted patch location (the save destination).

fig.ME-20B-write.eps_55

1. Press [WRITE].

The bank shown in the display and the pedal indicator flash to show the currently selected patch bank and number are indicated.

2. Select the save destination.

Press [ ] [ ] to select the bank. Press a number pedal (13) to select the number.

* To stop the Write procedure, press [EDIT/EXIT] to return to the previous mode.

3. Press [WRITE] once more.

The sound is stored, and the ME-20B returns to Memory mode. The display shows the bank, and the pedal indicators show the numbers.

2

1,32

24

Saving and Calling Up Tones (Memory Mode)

ME-20B_e.book 25

Calling Up and Using Saved Sounds (Patch Change) To switch patches, use [ ] [ ] and the number pedals (13).

* When you initially switch to Memory mode after turning on the power, Bank 1, Number 1 is always selected. fig.ME-20B-patch-change.eps_35

Switching Numbers When a number pedal (1) is pressed, the pedal indicator (2) lights up, the patch with that number in the currently selected bank is called up, and the sound is switched instantly.

fig.ME-20B-bank-change.eps_35

Switching Banks The bank is switched each time [ ] [ ] (1) is pressed, and the currently selected bank flashes in the display (2); sounds are not yet switched at this point.

* With the ME-20B in this state, pressing any of the number pedals (3) instantly switches the sound to the sound of the patch assigned to the currently selected bank/number. You can switch banks with the number pedals. In Memory mode, if you continue depressing the number pedal for the currently selected patch for two seconds, the pedal indicator flashes, and the functions of the number pedals change as shown below.

Number Pedal 1: Bank Number Pedal 2: Bank Number Pedal 3: Restores original pedal functions

You can switch banks using a footswitch pedal. For more information, refer to Using Footswitch Pedals (p. 27).

(1)

(2)

(3)

(1) (2)

25

Saving and Calling Up Tones (Memory Mode)

ME-20B_e.book 26

Changing Patch Settings (Patch Edit Mode) In Memory mode, switching effects on or off or adjusting NS THRESHOLD is not possible. To make these changes, you put the unit in Patch Edit mode.

fig.ME-20B-patch-edit.eps_55

1. Call up to the patch whose settings you want to edit (p. 25).

2. Press [EDIT/EXIT]. Ed appears in the display and the MEMORY indicator starts to flash, indicating that the unit is now in Patch Edit mode. As in Manual mode, with the ME-20B in this state, the number pedals switch the effects on and off, while [ ] [ ] control NS THRESHOLD, allowing you to set all the parameters.

3. Use the knobs, pedals, and buttons to change settings as desired.

4. Press [EDIT/EXIT] to return to Memory mode.

5. If you want to save your new settings, carry out the Write procedure (p. 24). Changed settings are not saved until the Write procedure is performed. Switching to a different patch before saving a patch causes its changed content to be lost, so the next time the patch is selected, its previous settings are called up.

1

1 2,4 5

26

ME-20B_e.book 27

Other Functions

Using Footswitch Pedals With an optional footswitch pedal (such as the BOSS FS-5U or FS-6) connected to the ME-20B, you can use the footswitch for the following operations.

In Manual mode: Switches the BASS ENHANCE on/off. Switches the Bypass/Tuner on/off.

In Memory mode: Bank up, Bank down

To prevent malfunction and/or damage to speakers or other devices, always turn down the volume and turn off the power to all devices before making any connections. Disconnecting or connecting plugs during startup may switch BASS ENHANCE or Tuner on or off.

Connecting a Footswitch Pedal When Connecting an FS-5U

fig.FS-5U1-e.eps_80/fig.FS-5U2-e.eps_80/fig.FS-6-e.eps_80

BASS ENHANCE On/Off

Bank up

If using an FS-5U switch, set the POLARITY switch as

shown in the following.

27

Other Functions

ME-20B_e.book 28

When Connecting Two FS-5Us or an FS-6 * Using a special Roland PCS-31 connection cable (optional), you can connect two FS-5Us.

B A

PCS-31

BASS ENHANCE On/Off

Bypass/Tuner On/Off

BASS ENHANCE On/Off

Bypass/Tuner On/Off

Bank down Bank up Bank down Bank up

If using an FS-6 switch, set the MODE and POLARITY switches as shown below.

Red White

If using an FS-5U switch, set the POLARITY switch as

shown in the following.

28

Other Functions

ME-20B_e.book 29

Returning the ME-20B to Its Factory Settings (Factory Reset) You can restore the settings stored in the ME-20B (User memory, tuner reference pitch, and knob response method (p. 7)) to their original settings when the unit was shipped from the factory. This is referred to as Factory Reset. To perform a Factory Reset, carry out the following steps.

fig.ME-20B-factory-reset.eps_55

1. Switch to Manual mode (p. 23).

2. Hold down [EDIT/EXIT] and press Number Pedal 2.

FA appears in the display.

3. Press [WRITE].

The MEMORY indicator flashes and the unit goes into standby.

* To cancel the Factory Reset, press [EDIT/EXIT] again to return to the original mode.

4. Press [WRITE].

The Factory Reset is carried out. When the Factory Reset is complete, the display goes dark and the unit returns to

Manual mode.

Never turn off the power while a Factory Reset is in progress.

2 3,4

29

Other Functions

ME-20B_e.book 30

Adjusting the Expression Pedal Although the ME-20Bs expression pedal has been set for optimal operation at the factory, extended use and certain operating environments can result in the pedal going out of adjustment. If you encounter problems, such as the expression pedals ON/OFF switch not functioning or the volume pedal not fully cutting off the sound, you can use the following procedure to readjust the pedal.

When operating the expression pedal, be careful not to get your fingers pinched between the movable part and the panel. In places with small children, an adult should provide supervision and guidance until the child is capable of following all the rules essential for the safe operation of the unit. fig.ME-20B-exp-pedal-adjust.eps_72

1. Switch to Manual mode (p. 23). 2. Hold down [EDIT/EXIT] and press Number Pedal 3.

Pd appears in the display and then changes to UP. 3. Press the heel of the expression pedal to the base, then press [WRITE].

dn appears in the display. 4. Depress the toe of the expression pedal until its all the way down, and press [WRITE].

15 appears in the display. * This is set to 5 when shipped from the factory.

5. Adjust the firmness of the switch action. Press [ ] [ ] to set the value (19). The lower the value, the less force is needed in pressing the pedal to switch it on and off.

6. Press [WRITE]. The setting is saved in memory and the unit returns to Manual mode.

* If the display flashes in Steps 2 and 3, depress the pedal again, and then press [WRITE].

2 45

6 4

30

ME-20B_e.book 31

Patch List

BANK NO. Description

1

1 Compressed sound suitable for picking.

2 Expansive sound with chorus and delay.

3 Fat overdrive sound.

2

1 Funk sound, great for slap bass.

2 Fretless sound, perfect for finger picking and use of rear pickup.

3 Flanger sound that works well with picking.

3

1 Bright sound, suitable for slap bass.

2 Chorus and octave sound, suited for finger-picked solos.

3 Fat synth bass sound.

4

1 Chorus sound suitable for slap solos.

2 Overdrive sound featuring sound pressure punch.

3 Laid-back sound featuring overdrive with phaser.

5

1 Bright sound suitable for finger picking.

2 Psychedelic sound combining distortion, phaser, and wah.

3 Synth bass sound, doubled an octave below.

6

1 Sound using a defretter to simulate a wooden bass sound. Recommend to play with palm muting.

2 Natural overdrive sound.

3 Flanging sound, good for solos.

7

1 Slap sound, good for funk rock.

2 Drive sound with heavy whirling phaser effect.

3 Conventional distortion sound.

8

1 Mild tone that works well with finger picking.

2 Funk sound featuring a light, floating feel, good for slap play.

3 70s funk sound using synth bass.

9

1 60s soul sound.

2 Funk sound suitable for finger picking.

3 Wild distortion sound, good for playing solos.

10

1 Deep, dense sound using octave effect plus reverb.

2 Delay sound suitable for playing rhythm.

3 Wah sound, good for slap.

31

ME-20B_e.book 32

Factory Settings

* Numerals enclosed in brackets ( ) indicate the BASS ENHANCE level.

When the BASS ENHANCE is off, the BASS ENHANCE level is set to 25.

BANK NO. BASS ENHANCE

SFX COMP/DRIVE

SW TYPE SENS TONE LEVEL SW TYPE SUSTAIN/ DRIVE/ SENS

TONE/ CUT- OFF

LEVEL

1 1 ON (25) OFF 1 25 25 25 ON 1 35 30 21 2 OFF OFF 5 25 25 25 OFF 1 25 25 25 3 OFF OFF 1 25 25 25 ON 2 35 40 20

2 1 OFF ON 1 25 25 44 ON 1 36 30 20 2 OFF ON 4 35 20 25 OFF 1 25 25 25 3 OFF OFF 1 25 25 25 ON 1 20 20 25

3 1 OFF OFF 1 25 25 25 ON 1 30 38 20 2 ON (30) ON 5 25 25 20 ON 1 20 30 18 3 OFF OFF 1 25 25 25 ON 5 0 18 23

4 1 ON (15) OFF 1 25 25 25 ON 1 32 24 19 2 OFF OFF 1 25 25 25 ON 4 35 50 10 3 OFF OFF 1 25 25 25 ON 2 29 35 20

5 1 ON (25) OFF 1 25 25 25 ON 1 20 45 20 2 OFF OFF 1 25 25 25 ON 3 40 33 18 3 OFF ON 5 10 25 15 ON 6 45 46 20

6 1 OFF ON 4 40 10 18 OFF 1 28 3 20 2 OFF OFF 1 25 25 25 ON 2 0 30 24 3 OFF OFF 1 25 25 25 ON 3 4 30 23

7 1 ON (30) OFF 1 25 25 25 ON 1 20 20 20 2 OFF OFF 1 25 25 25 ON 4 35 50 10 3 OFF OFF 1 25 25 25 ON 3 35 39 18

8 1 OFF OFF 1 25 25 25 OFF 1 25 25 25 2 ON (25) ON 2 32 39 50 OFF 1 25 25 25 3 OFF OFF 1 25 25 25 ON 6 31 19 20

9 1 OFF OFF 1 25 25 25 ON 1 30 10 18 2 ON (25) ON 3 45 25 35 ON 1 15 11 20 3 OFF OFF 1 25 25 25 ON 3 30 31 20

10 1 OFF ON 5 25 15 20 OFF 1 25 25 25 2 ON (20) OFF 1 25 25 25 ON 1 33 30 15 3 OFF OFF 1 25 25 25 ON 1 30 33 20

32

Factory Settings

ME-20B_e.book 33

Type List

DELAY/MOD EQ WAH NS MASTER LEVELSW TYPE TIME/

RATE

FEED- BACK/ DEPTH

LEVEL LOW LOW- MID

HIGH- MID HIGH SW THRESH-

OLD

OFF 5 25 25 25 25 25 30 34 OFF 15 25 ON 6 40 10 18 25 22 30 25 OFF 15 25 OFF 5 25 25 25 35 10 35 33 OFF 15 25 OFF 5 25 25 25 25 25 19 25 OFF 15 25 ON 6 28 13 20 25 25 30 25 OFF 15 25 ON 4 20 30 20 25 21 30 25 OFF 15 25 OFF 5 25 25 25 36 10 25 45 OFF 15 25 ON 5 26 45 25 25 30 30 25 OFF 15 25 ON 5 26 44 50 19 0 0 50 OFF 15 25 ON 5 25 24 50 25 25 34 25 OFF 15 25 OFF 5 25 25 25 25 25 35 25 OFF 15 25 ON 3 25 30 25 25 25 32 30 OFF 15 25 OFF 5 25 25 25 20 20 40 29 OFF 15 25 ON 3 25 29 9 35 28 25 33 ON 15 25 OFF 5 25 25 25 40 5 25 25 OFF 15 25 OFF 5 25 25 25 40 7 39 25 OFF 15 25 OFF 5 25 25 25 25 15 30 40 OFF 15 25 ON 4 25 45 23 30 20 32 35 OFF 15 25 OFF 5 25 25 25 30 20 30 40 OFF 15 25 ON 3 5 35 20 30 20 35 16 OFF 15 25 OFF 5 25 25 25 40 25 33 34 OFF 15 25 OFF 5 25 25 25 20 35 30 15 OFF 15 25 ON 1 35 29 25 25 25 25 25 OFF 15 25 OFF 5 25 25 25 30 25 30 25 OFF 15 25 OFF 5 25 25 25 25 35 10 11 OFF 15 25 OFF 5 25 25 25 25 25 35 40 OFF 15 25 ON 2 25 15 30 25 25 35 45 OFF 15 25 ON 7 40 35 40 25 30 25 20 OFF 15 25 ON 2 41 0 39 25 10 43 5 OFF 15 25 OFF 5 25 25 25 25 36 25 25 ON 15 25

NO. SFX COMP/DRIVE DELAY/MOD 1 T.WAH UP COMPRESSOR 0-99ms DELAY 2 T.WAH DOWN OVERDRIVE 100-700ms DELAY 3 T.WAH EDGE DISTORTION PHASER 4 DEFRETTER OD+DIRECT FLANGER 5 OCTAVE SYNTH 1 CHORUS 6 - SYNTH 2 CHO+DELAY 7 - - REVERB

33

ME-20B_e.book 34

Blank Chart

BANK NO. BASS ENHANCE

SFX COMP/DRIVE

SW TYPE SENS TONE LEVEL SW TYPE SUSTAIN/ DRIVE/ SENS

TONE/ CUT- OFF

LEVEL

1 1 2 3

2 1 2 3

3 1 2 3

4 1 2 3

5 1 2 3

6 1 2 3

7 1 2 3

8 1 2 3

9 1 2 3

10 1 2 3

34

Blank Chart

ME-20B_e.book 35

Type List

DELAY/MOD EQ WAH NS MASTER LEVELSW TYPE TIME/

RATE

FEED- BACK/ DEPTH

LEVEL LOW LOW- MID

HIGH- MID HIGH SW THRESH-

OLD

NO. SFX COMP/DRIVE DELAY/MOD 1 T.WAH UP COMPRESSOR 0-99ms DELAY 2 T.WAH DOWN OVERDRIVE 100-700ms DELAY 3 T.WAH EDGE DISTORTION PHASER 4 DEFRETTER OD+DIRECT FLANGER 5 OCTAVE SYNTH 1 CHORUS 6 - SYNTH 2 CHO+DELAY 7 - - REVERB

35

ME-20B_e.book 36

Troubleshooting

bt Appears in the Display Batteries are run down. Replace with new

batteries (p. 11).

Power does not turn on Is the correct AC adaptor (PSA series; sold

separately) properly connected?

Check once more to confirm the adaptor is connected (p. 12). Never use any AC adaptor other than the adaptor specified.

Has the battery run down?

Replace with new batteries (p. 11). * The batteries included with the ME-20B are

intended only for confirming that the unit is functional.

* This unit consumes a large amount of current, so the use of an AC adaptor is recommended. If using batteries, use alkaline-type batteries.

* To reduce battery consumption, be sure to disconnect the plug connected to the INPUT jack whenever the unit is not in use.

Is the plug properly connected to the INPUT jack?

Check the connection once again (p. 12). * The power will not turn on without a plug

connected to the INPUT jack.

No Sound/Volume is Low Are the other devices properly connected?

Check the connection once again (p. 12).

Can you hear sound through the headphones when headphones are connected?

If you can hear sound, there may be a short in the cable used to connect the bass amp or other device, or a mistake in an external devices settings. Check the connecting cables and external devices once more.

Could the MASTER LEVEL knob be turned down?

Use the MASTER LEVEL knob to raise the output volume.

Is the volume turned down?

Check the volume levels on any connected bass amp or mixer. Check LEVEL and other volume parameters to make sure no volume setting is too low.

Could the level have been lowered with the expression pedal?

When the pedal is set to function as a volume pedal, sounds are not output when the toe of the expression pedal is in the raised position.

Is the ME-20B in Tuner mode?

In Tuner mode, the bypassed sound is output, and the expression pedal functions as a volume pedal. In this case, sounds are not output when the toe of the pedal is in the raised position.

Could you be using a cable with an embedded resistor to connect a CD or MP3 player to the AUX IN jack?

Use of a cable that contains a resistor may make sound from connected devices inaudible.

Patches Cannot Be Switched Is the ME-20B in Memory mode?

In Memory mode, the display indicates the bank, the pedal indicators show the current patch, and the effect-select indicators light. Conditions other than these mean the ME-20B is in another mode, so patches cannot be changed. First switch the ME-20B to Memory mode, then continue (p. 23).

The Expression Pedal Switch Cannot Be Turned On or Off The Volume Pedal Cannot Reduce the Volume Completely Could the expression pedal be out of

adjustment?

Although the units expression pedal has been set for optimal operation at the factory, extended use and certain operating environments can result in the pedal going out of adjustment. Adjust the expression pedal (p. 30).

36

ME-20B_e.book 37

Specifications

ME-20B: Bass Multiple Effects

AD Conversion 24-bit + AF method (*)

DA Conversion 24-bit

Sampling Frequency 44.1 kHz

Patches 30 (user)

Nominal Input Level INPUT: -10 dBu AUX IN: -18 dBu

Input Impedance INPUT: 1 M AUX IN: 22 k

Nominal Output Level -10 dBu

Output Impedance 2 k

Display 7 segments, 2 characters LED

Control SFX/1 Pedal COMP/2 Pedal DELAY/3 Pedal Expression Pedal

Jacks INPUT jack (1/4 phone type) AUX IN jack (Stereo miniature phone type) OUTPUT jacks L/MONO, R (1/4phone type) PHONES jack (Stereo 1/4 phone type) FOOT SW jack (1/4 TRS phone type) AC Adaptor jack

Power Supply DC 9 V: Dry batteries (R6/LR6 (AA) type) x 6,

AC Adaptor (PSA series: Optional)

Current Draw 90 mA

* Expected battery life under continuous use: Alkaline: 13 hours, Carbon: 3.5 hours These figures will vary depending on the actual conditions of use.

Dimensions 294 (W) x 179 (D) x 54 (H) mm 11-5/8 (W) x 7-1/16 (D) x 2-1/8 (H) inches Maximum height: 294 (W) x 179 (D) x 74 (H) mm 11-5/8 (W) x 7-1/16 (D) x 2-15/16 (H) inches

Weight 1.6 kg / 3 lbs 9 oz (including batteries)

Accessories Owners Manual Dry Batteries (Alkaline: LR6 (AA) type) x 6 Roland Service (Information Sheet)

Options AC Adaptor: BOSS PSA series Footswitch: BOSS FS-6, FS-5U Connection Cable: PCS-31 (Roland) (Stereo 1/4 phone plug-1/4 phone plug x 2)

* 0 dBu = 0.775 Vrms

* In the interest of product improvement, the specifications and/or appearance of this unit are subject to change without prior notice.

(*) AF method (Adaptive Focus method) This is a proprietary method from Roland/ BOSS that vastly improves the signal-to-noise (S/N) ratio of the A/D and D/A converters.

37

ME-20B_e.book 38

Index

Numerics 099 ms DELAY ........................... 19 100700 ms DELAY ...................... 19 A AUX IN ...................................... 10 B Bank ..................................... 23, 25 BASS ENHANCE ..................... 9, 16 Bypass ........................................ 14 C CHO+DELAY ............................. 19 CHORUS .................................... 19 COMP ........................................ 18 COMPRESSOR ............................ 18 D DC IN ......................................... 10 DEFRETTER ............................... 17 DELAY ....................................... 19 Display ......................................... 8 DISTORTION .............................. 18 DRIVE ........................................ 18 E Effect .......................................... 16 Effect Select ................................... 8 Effect/Number Pedal ..................... 9 EQ ............................................. 20 Equalizer .................................... 20 EDIT/EXIT ................................... 8 Expression Pedal ..................... 9, 30 EZ EDIT ................................. 8, 22 F Factory Reset ............................... 29 FLANGER .................................. 19 FOOT SW ................................... 10 Footswitch .................................. 10 Footswitch Pedal ......................... 27 H Headphones ................................ 10

I INPUT ....................................... 10 M Manual mode ............. 910, 23, 27 MASTER LEVEL ......................... 21 Memory mode ............ 910, 23, 27 MOD ......................................... 19 N Noise Suppressor ........................ 21 NS ............................................. 21 O OCTAVE .................................... 17 OD+DIRECT .............................. 18 OUTPUT .................................... 10 OVERDRIVE .............................. 18 P Parameter ............................... 7, 16 Patch ......................................... 23 Patch Change .............................. 25 Patch Edit Mode .......................... 26 Pedal Indicator .............................. 9 PHASER .................................... 19 PHONES .................................... 10 R REVERB ..................................... 19 S Saving .................................. 2324 SFX ............................................ 17 SYNTH ...................................... 18 T T.WAH DOWN .......................... 17 T.WAH EDGE ............................ 17 T.WAH UP ................................. 17 THRESHOLD ............................. 21 Tuner ......................................... 14 Tuning ....................................... 14 W WAH ..................................... 9, 21 Write ..................................... 8, 24

38

For EU Countries

GR

SK

CZ

SI

LV

LT

EE

PL

HU

FI

SE

NO

DK

NL

PT

ES

IT

DE

FR

UK

ME-20B_e.book 39

This product complies with the requirements of European Directive 89/336/EEC.

For EU Countries

For Canada

This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.

Cet appareil numrique de la classe B respecte toutes les exigences du Rglement sur le matriel brouilleur du Canada.

NOTICE

AVIS

For the USA

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 th