User manual BOSS TU-88

[. . . ] 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. Be sure to read the section "Changing the Battery, " and then follow the instructions to install the battery. [. . . ] The Auto Power Off feature will be enabled the next time you turn on the power in the usual way. 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. Once the connections have been completed, turn on power to your amp or other amplification system last. By turning on devices in the wrong order, you risk causing malfunction and/or damage to speakers and other devices. When a reference tone is being sounded, the note name or string number is displayed. Flat Feature You can tune an instrument to a pitch lower than regular tuning. You can set this within the range of (one semitone lower) through (five semitones or two and a half steps lower). Meter This shows the difference in pitch from the indicated note name or string number. Reference Pitch The frequency of the A4 ptich (the middle A on a piano keybord) that is used in tuning for performances is called the "reference pitch. " Accu-Pitch function This indicates whether the Accu-Pitch feature is on (displayed) or off (not shown). Sixteenth note 6: Clave-based pattern 3-2 Tuning Guide These show how close you are to the target pitch. 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. Whenever this operation is carried out, the Accu-Pitch feature is switched on or off. when the Accu-Pitch feature is enabled , Accu-Pitch appears in the display. [. . . ] 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 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. * In the interest of product improvement, the specifications and/or appearance of this unit are subject to change without prior notice. [. . . ]