BOSSCO MD-2 Manuel utilisateur

Owner’s Manual

DCAC

AC & BATTERY

POWERED

FET

Thank you, and congratulations on your choice of BOSS MD-2 Mega Distortion.

Before using this unit, carefully read the sections entitled: “USING THE UNIT SAFELY”

and “IMPORTANT NOTES” (separate sheet). These sections provide important informa-

tion 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 man-

ual should be read in its entirety. The manual should be saved and kept on hand as a con-

venient reference.

* A battery is supplied with the unit. The life of this battery may be limited, however, since its

primary purpose was to enable testing.

Allrightsreserved.Nopartofthispublicationmaybereproducedinanyformwithout

the written permission of BOSS CORPORATION.

Features

●

This new distortion unit delivers straight, powerful distortion sounds.

●

Two knobs, “GAIN BOOST” and “DIST,” allow you to create a wide variety of distor-

tion sounds, from mild to extreme.

●

You can use the “BOTTOM” knob to get sound with more emphasis on the low end.

Panel Description

fig.01

1. AC Adaptor Jack

Accepts connection of an AC Adaptor (op-

tionally available BOSS PSA-Series). By

using an AC Adaptor, you can play with-

out being concerned about how much bat-

tery power you have left.

* 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 adaptor's 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.

* 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).

* As soon as you connect the AC adaptor, the

unit is turned on.

Panel Description

2. CHECK Indicator

This indicator shows whether an effect is

ON/OFF, and also doubles as the Battery

Checkindicator.Theindicatorlightswhen

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 immedi-

ately. For instructions on how to replace the

battery, please refer to “Changing the Battery

(p. 10).”

* The CHECK indicator is designed for

providing information about effects—such as

their on/off status. It does not indicate

whether the power is on or off.

3. OUTPUT Jack

The OUTPUT jack is used to connect the

unit to an amplifier or another device.

4. INPUT Jack

This jack accepts input signals (coming

from a guitar, some other musical instru-

ment, 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.

5. Pedal Switch

This switch turns the effects ON/OFF.

6. 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 (p.10).”

Panel Description

fig.02

7. LEVEL Knob

This knob adjusts the level of the effect

sounds.

8. BOTTOM Knob

Adjusts the amount of boost in the low

end. The lower frequencies are empha-

sized more as the knob is turned clockwise.

9. TONE Knob

This controls the tone.

Rotating the knob counterclockwise will

make the sound milder, while rotating it

clockwise will make the sound sharper.

10. DIST (Distortion) Knob

This adjusts the amount of distortion.

Rotating it clockwise increases the effect,

whereas counterclockwise rotation reduc-

es the effect.

11. GAIN BOOST Knob

Adds even more distortion, in addition to

that obtained with the DIST knob setting.

The further clockwise you turn the knob,

the more powerful the distortion gets, cre-

ating sounds that are really expansive.

98 10 117

Connections

fig.03

AC adaptor

PSA-series (option)

Electric guitar

Guitar Amplifier

OUT 9V DC/200mA

Connections

* 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 (p. 7), 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.

Operating the Unit

fig.05

When you have made the necessary

connections, set the knobs as shown in

the illustration.

Depress the pedal switch to turn the

effect on. (Make sure the CHECK indi-

cator lights.)

Adjust the depth of the Distortion

effect using the DIST knob and GAIN

BOOST knob.

* Turning both knobs all the way up will result

in increased noise.

Adjust the tone using the TONE knob.

Adjust the degree of low-end boost

with the BOTTOM knob.

Adjust the LEVEL knob so that the

level of the sound obtained when the

effect is on is equal to that obtained

when it is off.

4536

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 re-

placed.

Replace the battery following the steps be-

low.

fig.09

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.

Remove the old battery from the battery

housing, and remove the snap cord con-

nected to it.

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 -).

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.

Finally, insert the thumbscrew into the

guide bush hole and fasten it securely.

Thumbscrew Pedal

Spring Base

Coil Spring

Guide Bush

Hole

Battery Housing

Battery Snap

Cord

Battery

Snap

9V Battery

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