BOSSCO MD-2 Manual de usuario
Owner’s Manual
DCAC
AC & BATTERY
POWERED
FET
2
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.
Copyright © 2001 BOSS CORPORATION
Allrightsreserved.Nopartofthispublicationmaybereproducedinanyformwithout
the written permission of BOSS CORPORATION.
3
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.
4
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.
1
34
5
6
2
5
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).”
6
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
7
Connections
fig.03
AC adaptor
PSA-series (option)
Electric guitar
Guitar Amplifier
OUT 9V DC/200mA
8
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.
9
Operating the Unit
fig.05
1.
When you have made the necessary
connections, set the knobs as shown in
the illustration.
2.
Depress the pedal switch to turn the
effect on. (Make sure the CHECK indi-
cator lights.)
3.
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.
4.
Adjust the tone using the TONE knob.
5.
Adjust the degree of low-end boost
with the BOTTOM knob.
6.
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
10
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
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
housing, and remove the snap cord con-
nected to it.
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.
Thumbscrew Pedal
Spring Base
Coil Spring
Guide Bush
Hole
Battery Housing
Battery Snap
Cord
Battery
Snap
9V Battery
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