Boss Audio Systems Stereo Receiver TU 12BW User Manual

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.  
Owners 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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