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manual abstract
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-15’s batteries are not yet installed. Be sure to read “Changing the Batteries” and then follow the instructions to install the batteries. Copyright © 2002 BOSS CORPORATION All rights reserved. No part of this publication may be reproduced in any form without the written permission of BOSS CORPORATION. ¦ Features • Backlit meter allows tuning even in dark environments. • Also features an “AUTO mode,” which automatically determines the note name or string number, and a “MANUAL mode,” where you can specify note names and string numbers (which comes in handy after you’ve restrung your instrument). • Includes “CHROMATIC mode,” which permits tuning to any of the twelve semitone steps by note name over the entire chromatic scale, and a “GUITAR/BASS mode” for tuning to guitar and bass string numbers. • Compatible with seven-string guitars and six-string basses. • Includes a Flat Tuning function, which lowers all pitches from one semitone to five semitones (two and a half steps). • Open Tuning function makes it easy to achieve DROP D, OPEN D/E/G/A, and DADGAD tunings. • OCTAVE ADJUST mode makes the octave adjustments required to maintain the correct pitch when playing the frets. • SOUND mode plays the reference tone. • Accu-Pitch function produces a beeping tone to signal that the tuning is correct. • AC adaptor jack for use with AC adaptor. • Auto Power Off function helps prevent battery drain (only when batteries are used). ¦ Panel Descriptions ¦ Display ¦ Note About AUTO and MANUAL Modes Normally, you will be using “AUTO mode,” in which note names and string numbers are indicated automatically. However, after restringing an instrument, or when using the Open Tuning function, it is more convenient to use “MANUAL mode,” in which you specify the note names and string numbers using the [NOTE] button in advance. Pressing the [AUTO/MANUAL] button toggles the mode between “AUTO” and “MANU.” The current mode is indicated in the display. ¦ Regarding CHROMATIC and GUITAR/BASS Modes ¦ How to Use the Tuner 1. Connect the instrument to be tuned to the INPUT jack. The built-in mic is used for tuning acoustic instruments. When using the mic, make sure that nothing is connected to the INPUT or OUTPUT jacks, and place the TU-15 near the instrument. * 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. 2. Slide the POWER switch to [ON]. The reference pitch is indicated in the display. To change the reference pitch, press the [PITCH] button one or more times until the pitch you want to set as the reference pitch appears in the display (the factory default setting is 440 Hz). If the power has been turned off by the Auto Power Off function, slide the POWER switch to [OFF], then to [ON] again. 3. Switch to AUTO mode. Normally, “AUTO mode” is used. In this mode, note names and string numbers are indicated automatically. If “MANU” appears in the display, press the [AUTO/MANUAL] button so that “AUTO” is shown. 4. Play a single note on the instrument. The note name/string number for the note that is playing appears in the display. The meter and Tuning Guide show how far the note is from the correct pitch. 5. Tune the instrument. With the intended note name/string number appearing in the display, tune the instrument so that both “ ” and “ ” of the Tuning Guide are lit, and the meter needle points to 0 (center position). When a stable pitch is achieved, the tuner makes a beeping sound, informing you that the tuning is completed (with the Accu-Pitch function). ¦ Flat Tuning This lowers the actual pitch of all notes below the regular tuning (from one to five semitones, or two and a half steps), and can be accomplished simply without changing the regular display. Press the [FLAT] button and select the number of semitones the actual pitch is to be lowered relative to the note appearing in the display. No flat symbols appear when regular tuning is selected; “ ” indicates the pitch is lower by one semitone, “ ” a whole tone, and so on, with “ ” marks indicating a drop of five semitones. +50 CENT CENT -50 0 Meter & Display [GUITAR/BASS] Button [CHROMATIC] Button [SOUND] Button Power Switch [POWER] Switches the power on and off. Whenever the TU-15 has remained totally idle for approximately thirty minutes, while running on battery power, the power is automatically switched off. To turn the power back on, first slide the POWER switch to [OFF], then to [ON] again. Backlight Switch [LIGHT] Switches the backlighting on and off. Speaker AC Adaptor Jack Connect the AC adaptor (the optional BOSS PSA series) he...