Boss TU-3S User Manual

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

English

Owner’s Manual

* 5 1 0 0 0 5 0 1 9 8 - 0 2 *

日本語

UNIT SAFELY” and “IMPORTANT NOTES” (supplied on a separate sheet). 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

 High Brightness mode enhances meter visibility outdoors.  Accu-Pitch Sign function uses the motion of the meter’s lights

to show when tuning is completed.

 Guitar/Bass mode lets you tune by string number, with support

for 7-string guitars and 6-string basses.

 Flat tuning is supported with Guitar Flat mode, which allows for

“down” tunings up to six semitones below standard pitch.

How to Use the Tuner

1. Connect the AC adaptor (sold separately).

This switches on the power and the CHECK indicator lights.

2. Connect the guitar or bass you want to tune to the

INPUT jack.

3. Play a single note on your guitar or bass, and tune it.

The note name or string number closest to the tone being played appears in the display. Tune the instrument so that both Tuning Guide indicators are lit and the center of the meter is lit green. (Cent display) The meter will light farther toward the left as the pitch gets flatter, or farther toward the right as the pitch gets sharper.

* When the Accu-Pitch Sign function is on, the meter lights stream

toward the center of the display when stable tunin g at the correct pitch is reached.

* The meter behavior described here is when the CENT display is selected

(the factory setting). The behavior is different when you've selected the STREAM display.

Convenient Functions

 Having the Meter Indicate Completion of

Tuning (Accu-Pitch Sign function)

When the Accu-Pitch Sign function is on, the meter lights stream toward the center of the display when stable tuning at the correct pitch is reached.

1. While holding down the STREAM/CENT button, turn on

the power (connect the AC adaptor).

2. Press the STREAM/CENT button again to toggle the

Accu-Pitch Sign function on/off.

On: The meter lights stream to the center from the left and right. Off: The meter lights up at the left and right.

* After making the sett ing, you will need to turn on the power again. * This setting remains stored even after the power is turned off.

Changing the Reference Pitch



You can adjust the reference pitch over a range of 436-445 Hz. (440 Hz is the factory default.)

1. Press the MODE button and STREAM/CENT button

simultaneously.

The lowest digit of the current reference pitch (e.g., “0” when set to 440 Hz) blinks in the Note Name/String indicator.

2. Press the MODE button or STREAM/CENT button to

change the reference pitch.

MODE button: Raises the reference pitch by 1 Hz. STREAM/CENT button: Lowers the reference pitch by 1 Hz.

* If you allow several seconds to elapse without pressing the MODE

button or STREAM/CENT button, the TU-3S will return to normal operation.

* When you turn on the power, the current reference pitch will be

displayed f or several seconds.

* This setting remains stored even after the power is turned off.

Changing the Meter’s Brightness



(High Brightness mode)

By switching the meter to High Brightness mode, you can increase its visibility when performing outdoors. To switch to High Brightness mode, hold down the STREAM/CENT button for two seconds or longer. To return to normal brightness, hold down the STREAM/CENT for two seconds or longer once again.

* Normal brightness is automatically selected when you turn on the

power.

Panel Descriptions

Parallel DC Cord (PCS-20A: optional)

To PSA adaptor compatible devices such as compact effect units

1 2 3

Guitar Amplifier

* If you connect other effect units, you must connect them after the TU-

3S. If the TU-3S is connected after other effect units, you won't be able to tune correctly.

1. CHECK Indicator

This indicator lights when the TU-3S is active.

2. Tuning Guide Indicator

Indicates when the proper tuning is reached.

Pitch is flat Pitch is in tune Pitch is sharp

3. Meter

Indicates the tuning of the input sound’s pitch.

4. STREAM/CENT button

Switches the meter’s display pattern.

* This setting remains stored even after the po wer is turned off.

CENT display

The meter lights farther toward the left as the pitch gets flatter, or farther toward the right as the pitch gets sharper. When the pitch is correct, the center of the meter lights green.

* The center of the meter and the tuning guide indicator remain lit for

several seconds after you’ve selected this setting.

STREAM display

The meter lights stream toward the left if the input pitch is flat, or toward the right if the input pitch is sharp. The lights flow more slowly as the pitch discrepancy decreases, and stop flowing when the pitch is exact.

* The meter lights stream toward the left for several seconds after you've

selected this setting.

5. Note Name/String Number Indicator

Indicates the note name, string number, or reference pitch.

Note indicator

6. MODE Button

The tuning mode changes each time you press the MODE button. The meter lights at the position of the currently selected mode.

* When you turn on the power, the cu rrent tuning mode will be displayed

for several se conds.

* This setting remains stored even after the po wer is turned off.

In this example, the Tuning mode is set to GUITAR.

Bass at

( –3)

Bass

Mode Explanation Indicator Status

Chromatic

Chromatic flat

Guitar

Guitar flat

Bass

Bass flat

Guitar at

Lets you tune all twelve chromatic steps of the octave.

Lets you tune one semitone lower (b) or two semitones lower (2).

Lets you tune by guitar string numbers.

Lets you tune one semitone lower (b) or anywhere from two to six semitones lower (2-6).

Lets you tune by bass string numbers.

Lets you tune one semitone lower (b) two semitones lower (2), or three semitones lower (3).

7. INPUT Jack

Connect the guitar or bass guitar to be tuned here.

8. OUTPUT Jack

Connect an effects processor, guitar amp, or other such device here.

* The tuner is always on while the AC adaptor is connected. The sound

from the OUTPUT jack will not be muted.

9. DC OUT Jack

When an AC adapter is used, you can connect a PCS-20A parallel DC cord (optional) to supply power to effects processors and other PSA adaptor-compatible gear.

10.DC IN Jack

Accepts connection of an AC Adaptor (PSA series: optional).

* Use only the specified AC adaptor (PSA series), and connect it to an AC

outlet of the correct voltage. Do not use any other AC adaptor, since this may cause malfunction.

Parallel DC Cord (accessory)

910

Guitar

( –6)

AC Adaptor

(PSA series: optional)

5 6

Electric Guitar (Electric Bass)

(Dot LED lit)

Chromatic

Chromatic at

( , 2)

The note name is displayed.

The guitar string number is d isplayed. (7th string is displayed as “7.”)

The bass string number is displayed. (Hi-C string is displayed as “C,” Lo-B string is displayed as “b.”)

Precautions When Connecting

* 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.

* 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 manufactur er of the cable.

* 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.

* 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.

Attaching the Rubber Foot

You can attach the rubber foot (included) if necessary.

DC IN

* When turning the unit over, be careful so as to protect the buttons and

switches from damage.

Specifications

TU-3S: Chromatic Tuner

Tuning Range C0 (16.35 Hz)–C8 (4,186 Hz) Reference Pitch A4 = 436-445 Hz (1 Hz step) Tuning Accuracy ±1 cent Nominal Input Level -20 dBu Input Impedance 1 MΩ Nominal Output Level -20 dBu Output Impedance 1 kΩ Recommended Load

Impedance Power Supply AC Adaptor (sold separately)

Current Draw

Dimensions

Weight

Accessories

Options

10 kΩ or greater

35 mA (DC 9 V) 95 mA (DC 9 V,

73 (W) x 84 (D) x 56 (H) mm 2-7/8 (W) x 3-5/16 (D) x 2-1/4 (H) inches

220 g 8 oz

Owner’s Manual, Leafle t (“USING THE UNIT SAFELY,” “IMPORTANT NOTE,” and “Information”), Parallel DC cord, Rubber foot

AC adaptor: PSA series Parallel DC cord: PCS-20A

when High Brightness mode is on

)