Boss AC-3 Bedienungsanleitung

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NameExplanation

1

DC IN jack

Accepts connection of an AC Adaptor (PSA series; sold separately). By using an AC

Adaptor, you can play without being concerned about how much battery power you

have left.

* We recommend that you keep batteries installed in the unit even though you’ll be

powering it with the AC adaptor. That way, you’ll be able to continue a performance

even if the cord of the AC adaptor gets accidently disconnected from the unit.

* Use only the specied AC adaptor (PSA-series).

* If the AC adaptor is connected while power is on, the power supply is drawn from the

AC adaptor.

2

CHECK indicator

This indicator shows whether an eect is ON/OFF, and doubles as the Battery Check

indicator. The indicator lights when an eect is ON.

* If this indicator goes dim or no longer lights while an eect is ON, the battery is near

exhaustion and should be replaced immediately.

&“Changing the Battery”

3

LINE OUT jack

This output jack is used for connecting to mixers, recorders, and other devices that accept

line-level input.

When a cable is also connected to the G.AMP OUT jack, the eect sound is output from

the LINE OUT jack when the eect is switched on, while the output is muted when the

eect is switched o.

&“Connections”

Before using this unit, carefully read the sections entitled: “USING THE UNIT SAFELY” and “IMPORTANT NOTES” (supplied on a separate sheet).

After reading, keep the document(s) where it will be available for immediate reference.

Panel Descriptions

Owner’s Manual

NameExplanation

4

G.AMP OUT jack

This output jack is used for connecting to guitar amps and other eects processors.

The eect sound or direct sound is output from here depending on whether the eect is

switched on or o.

When a cable is simultaneously connected to the LINE OUT jack, the output from the

G.AMP OUT jack is muted when the eect is switched on, while the direct sound is output

when the eect is switched o.

&“Connections”

5

INPUT jack

This jack accepts input signals (coming from an electric guitar, some other musical

instrument, or another eects unit).

* The INPUT jack doubles as power switch. Power to the unit is turned on when you plug

into the INPUT jack; the power is turned o when the cable is unplugged.

When not using the eects unit, be sure to disconnect the plug from the INPUT jack.

6

Pedal switchThis switch turns the eects on/o.

7

Thumbscrew

When this screw is loosened, the pedal will open, allowing you to change the battery.

&“Changing the Battery”

8

[REVERB] knobAdjusts the amount of reverb applied to the sound.

9

[LEVEL] knobAdjusts the volume of the eect sound.

10

[BODY] knob

Adjusts the resonance of the sound produced by the guitar body, altering the

characteristic mellowness and breadth of the acoustic guitar sound.

11

[TOP] knob

Adjusts the sense of attack and the harmonic content of the upper range.

* If the sound is distorted, adjust by turning the [TOP] knob to the left (counterclockwise).

* Distortion can also be suppressed by turning the [LEVEL] knob to the left.

12

[MODE] knob

Provides for selection of the tone. The knob can be used to select any of four tones.

STANDARDThis tone is that of the popular Dreadnought acoustic guitar body style.

JUMBO

This setting provides a tone characteristic of an oversized guitar body, a

tone featuring a rich bass response along with a beautiful high end.

ENHANCE

Providing a sharper attack than the standard tone, this tone does not

become masked by the sounds of other instruments, even in bands and

ensembles.

PIEZO

This setting provides the tone of a round-back acoustic guitar, with

subdued body resonance and a unique attack.

Precautions When Connecting

5To prevent malfunction and equipment failure, always turn down the volume,

and turn o all the units before making any connections.

5Once the connections have been completed, turn on power to your various

devices in the order specied. 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 o the power to your guitar amp rst.

5Before turning the unit on/o, always be sure to turn the volume down. Even

with the volume turned down, you might hear some sound when switching the

unit on/o. However, this is normal and does not indicate a malfunction.

Changing the Battery

1. Hold down the pedal and loosen the

thumbscrew, then open the pedal

upward.

* The pedal can be opened without detaching

the thumbscrew completely.

2. Remove the old battery from the battery

housing

, and remove the battery

snap connected to it.

3. Connect the battery snap 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, and

then close the pedal.

* Carefully avoid getting the battery snap cord

caught in the pedal, coil spring,

and battery housing.

5. Insert the thumbscrew into the guide bush hole

and tighten it securely.

Main Specications

Nominal Input Level-20 dBu

Input Impedance1 MΩ

Nominal Output Level-20 dBu

Output Impedance1 kΩ

Recommended Load

Impedance

10 kΩ or greater

Power Supply

Alkaline battery (9 V, 6LR61)

AC adaptor (PSA series: sold separately)

Current Draw

70 mA

* Expected battery life under continuous use:

Alkaline: 3.5 hours

These gures will vary depending on the

actual conditions of use.

Dimensions

73 (W) x 129 (D) x 59 (H) mm

2-7/8 (W) x 5-1/8 (D) x 2-3/8 (H) inches

Weight425 g /15 oz (including Battery)

Accessories

Leaet (“USING THE UNIT SAFELY,” “IMPORTANT

NOTES,” and “Information”)

Alkaline battery (9 V, 6LR61)

Options (sold separately)

AC adaptor: PSA series

* 0 dBu = 0.775 Vrms

* This document explains the specications of the product at the time that the

document was issued. For the latest information, refer to the Roland website.

Use of Battery

5The battery that was supplied with the unit is for temporary use, intended

primarily for testing the unit’s operation. We suggest replacing this with an

alkaline dry cell.

5If you handle batteries improperly, you risk explosion and uid 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” (supplied on a separate

sheet).

9 V Battery

English

Connections

When Connecting to a Guitar Amp

Guitar Amplier

Electric Guitar

AC adaptor

PSA series

(sold separately)

2

3

4

6

7

8

9

11

10

12

Guitar AmplierMultiple Eects, etc.

When Connecting to a PA System, Recorder, or Similar Equipment

PA system

Recorder

When Connecting Both to a Guitar Amp and PA System (or Recorder or Similar Equipment)

With Eect On

The CHECK indicator lights, the output from the AC-3:

G.AMP OUT jack is muted, and the eect sound is output

from the LINE OUT jack.

With Eect O

The CHECK indicator is o, the guitar sound (with eect

o) is output from the AC-3: G.AMP OUT jack, and the

output from the LINE OUT jack is muted.

PA system

Recorder

Eect sound

Mute

Guitar AmplierMultiple Eects, etc.

PA system

Recorder

Guitar sound

(Direct sound)

Guitar AmplierMultiple Eects, etc.

Mute

The following shows the correspondence between output jack connection status and the sound output.

Output from LINE OUTOutput from G.AMP OUT

Eects OnEects OEects OnEects O

Only G.AMP OUT Connected––

Eect Sound

(for Guitar Amp)

Direct Sound

Only LINE OUT Connected

Eect Sound

(Line)

Direct Sound––

Both LINE OUT and

G.AMP OUT Connected

Eect Sound

(Line)

MuteMuteDirect Sound

© 2018 Roland Corporation

02

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