Calibrating the Meter's Needle
Rarely, the meter's needle may drift out of calibration, causing the needle to point
slightly off from the 0 position even when the Tuning Guide's
and
indicators
light simultaneously. This can occur over time as the unit is transported, or if the unit is
handled in a rough fashion. If this occurs, you can recalibrate the needle using the
following procedure.
Owner’s Manual
Thank you, and congratulations on your choice of the BOSS TU-12BW Chromatic Tuner.
Before using this unit, carefully read the sections entitled: “USING THE UNIT SAFELY” and
“IMPORTANT NOTES” (supplied on a separate sheet).
During normal use, the meter's needle almost never drifts out of
calibration. To adjust it, be sure to use a small Phillips screwdriver (a 2.3
mm precision screwdriver).
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.
As shipped, the TU-12BW’s batteries are not yet installed. Be sure to read the section
“Changing the Batteries,“ and then follow the instructions to install the batteries.
Copyright © 2008 BOSS CORPORATION
1. Hold down [PITCH] and turn the power on.
Confirm whether or not the needle is pointing at the 0 position.
2. If the needle is not pointing to 0, carefully turn the adjustment screw
with a small, precision phillips screwdriver (2.3 mm) until the needle
points to 0.
All rights reserved. No part of this publication may be reproduced in any form
without the written permission of BOSS CORPORATION.
3. After completing calibration, press [POWER] to switch off the power.
fig.01??????
AUTO/MANUAL
Indicators
This changes the tuning mode.
These show the current note's name (C-B),
natural or sharp status (#), the master reference
pitch (438-445), and a warning when the
battery is low.
ꢀ Useful Features
Green Indicator: AUTO CHROMATIC mode
Red indicator: MANUAL mode
Preventing Battery Drain If You Forget to Switch Off the
Power (Auto Power Off Feature)
(for tuning a single specified pitch)
Needle Meter
When the TU-12BW is turned on and powered by batteries, the power is turned off
automatically if approximately 30 minutes passes without any button being
pressed.
DC IN jack
Connect the AC adaptor
(optional BOSS PSA series) here.
Deactivating the Auto Power Off Feature
INPUT jack
Connect devices such as the
included piezo mic or a digital
instrument you want to tune here.
You can temporarily deactivate the Auto Power Off feature when you power up the
TU-12BW. To do so, simultaneously hold down [ ] and [ ] while you press
[POWER] to turn on the power.
The Auto Power Off feature is always enabled when you switch on the power in the
usual way.
QUICK RESPONSE
This changes the meter
response speed.
Using a Tone to Indicate Tuning is Completed
(Accu-Pitch Feature)
(Sound button)
Tuning Guide
The tuning indicator lights to show how close you
are to the target pitch.
Use this to turn the reference tone's
sound on and off.
(Down)/ (Up)
These change various settings.
When the Accu-Pitch feature is on, a beeping sound is played when the pitch of the
instrument you’re tuning stabilizes within a range of three cents above or below
the correct pitch. This sound tells you that the pitch is in tune.
lights: pitch is flat (low)
PITCH
lights: pitch is sharp (high)
This changes the settings for the reference
pitch.
light simultaneously: in tune ( 3 cents)
Switching the Accu-Pitch Feature On and Off
1. Hold down [ ] (Sound) and press [POWER] to switch on the power.
POWER
Switches the power on and off.
If no sound is heard from the unit as it's powered up, it means that the Accu-Pitch
feature has been deactivated. To enable the Accu-Pitch feature, perform the same
operation again; if you hear a beeping sound when the power comes on, it means
that Accu-Pitch has been enabled.
Built-in Mic
Speaker
This allows you to tune an acoustic instrument
when it's not convenient to use the included
piezo mic. For the best results with the built-in
mic, move the TU-12BW as close to the instrument
as possible while tuning.
This plays the reference tone
and the Accu-Pitch sound.
Memory Features
Batteries Compartment
(bottom of the unit)
Once batteries are installed in the TU-12BW, the settings described below are
retained in memory even after the power is switched off.
Insert two of the same type of AAA batteries.
Meter Adjustment Control (bottom of the unit)
Removing the batteries returns all settings to their factory defaults.
Setting
Tuning mode setting (AUTO or MANUAL)
Reference pitch
Original factory settings
AUTO
ꢀ Normal Tuning (AUTO CHROMATIC Mode)
1. Connect the plug of the included piezo mic to the INPUT jack and
mount the piezo mic on the instrument you want to tune.
440Hz
Note name selected in Sound mode
Accu-Pitch feature settings
C4
To carry out tuning using the built-in microphone, connect nothing to the INPUT
jack and place the TU-12BW close to the instrument. If you have a digital wind
controller or an instrument with a built-in mic or pickup, plug its output into the
INPUT jack.
ON (enabled)
OFF (disable)
Quick Response feature settings
ꢀ Changing the Batteries
2. Press [POWER] to switch the power on.
The BATT. indicator flashes when the batteries begin to
run down.
3. Press [AUTO/MANUAL] to enable the "AUTO" setting (lighting the
green indicator).
Replace the batteries as soon as possible.
*
When turning the unit upside-down, place it on a soft cloth or
the like so as to prevent damage to the panel.
In AUTO CHROMATIC Mode, the TU-12BW automatically displays a note's pitch (the
note name) as you play it on the instrument. Most of the time, AUTO is the most
convenient mode to use.
1. Open the battery compartment (located
on the bottom of the unit) by sliding the
cover toward OPEN.
When you want to practice producing a specific pitch, you may want to
use MANUAL mode; in this mode, only the pitch that you specify is
detected and displayed.
2. Remove the old batteries from the battery compartment.
3. Insert two of the same type of fresh AAA batteries.
4. Play a single note on the instrument.
While the note is sounding, the name for the note's current pitch is displayed.
The meter and Tuning Guide show how far the note is from the correct pitch.
*
*
Make sure the “+” and “-” ends of the batteries are oriented correctly.
Do not mix fresh batteries with used ones, or mix batteries of different types. Doing so can result in
fluid leakage.
5. Tune the instrument.
With the intended note name displayed, tune the instrument so that
on the Tuning Guide light simultaneously and the meter's needle points to 0 (the
center position).
When the Accu-Pitch feature is on, the tuner makes a beeping sound when the note
is stabilized at the correct pitch, informing you that the note is in tune.
and
4. Slide the cover of the battery compartment back into place.
ꢀ Specifications
Tuning Range E0 (20.6Hz) –
Expected battery Approximately 15 hours
C8 (4,186.0Hz)
life under
This figure will vary depending on the
ꢀ Training for a Specific Pitch
continuous use actual conditions of use.
(carbon)
(Tuning in MANUAL Mode)
Reference Pitch A4 (438–445Hz)
Dimensions
Weight
147.5 (W) x 54.0 (D) x 23.9 (H) mm
5-13/16 (W) x 2-1/8 (D) x 1 (H) inches
1. Connect the plug of the included piezo mic to the INPUT jack and
mount the piezo mic on the instrument you want to tune.
Tuning
1 cent
205 g, 8 oz (including batteries)
Accuracy
To carry out tuning using the built-in microphone, connect nothing to the INPUT
jack and place the TU-12BW close to the instrument. If you have a digital wind
controller or an instrument with a built-in mic or pickup, plug its output into the
INPUT jack.
Power Supply Dry battery R03 (carbon)
or LR03 (alkaline); (AAA)
type x 2; DC 3 V
Accessories
Dry battery (R03 (AAA) type) x 2 (carbon),
piezo microphone, Owner’s Manual, Soft
Case, Holder, Leaflet (“USING THE UNIT
SAFELY” and “IMPORTANT NOTES”), Infor-
mation
AC adaptor DC 9V (PSA
series; optional)
2. Press [POWER] to switch the power on.
Current Draw 12 mA
3. Press [AUTO/MANUAL] to enable the "MANUAL" setting (lighting the
red indicator).
*
In the interest of product improvement, the specifications and/or appearance of this unit are subject to
change without prior notice.
4. Press [ ] or [ ] to display the note name for the specific pitch you
want to practice and/or tune.
5. Play a single note on the instrument.
The meter and Tuning Guide show how far the note is from the correct pitch.
6. Tune the instrument.
With the intended note name displayed, adjust the instrument's tuning so that
both
and
on the Tuning Guide are lit and the meter's needle points to 0
(center position).
When the Accu-Pitch feature is on, the tuner makes a beeping sound when the note
is stabilized at the correct pitch, informing you that the note is in tune.
ꢀ TU-12BW Settings
Changing the Reference Pitch for Tuning
1. Hold down [PITCH] and press [ ] or [ ] to choose the reference
pitch you want.
The indicator flashes. Choose the reference pitch you want by getting it to flash.
2. Release [PITCH] to set the selected reference pitch.
This setting is saved in memory when the TU-12BW is powered off.
Tuning While Listening to the Reference Tone (Sound Mode)
1. Choose the tuning mode you want to use (AUTO or MANUAL).
2. Press [ ] (Sound) to play the reference tone.
3. Press [ ] or [ ] to light the indicator for the note name you'd like to
use as a reference.
The sound of the note name shown by the indicator is played.
Pressing [ ] and [ ], you can play reference tones in half-step increments
over five octaves (C2 to C7).
4. Tune the instrument to the reference tone.
When you're using Sound mode, tuning cannot be performed using the
built-in mic (the built-in mic is disabled).
5. Press [ ] (Sound) to stop playing the reference tone.
Changing the Meter Response Speed (Quick Response Feature)
The Quick Response feature increases the speed of the meter's response to the incoming
pitch. You may find this handy for some advanced music practice applications.
1. Press [QUICK RESPONSE] to turn the Quick Response feature on/off.
Quick Response is activated when the red indicator lights.
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