User manual YAMAHA BK20AE

[. . . ] 70 hours (with the preamp switched ON and the tuner used 2 minutes every 1 hour) TuningSystem: Chromatic type (12 semitones), A4=440Hz AutoOFFFunction: Tuner automatically switches OFF after 2 minutes. Input: Built in pickup PitchAccuracyRange: +/­ 3 cents · Hexagonal wrench for neck adjustment x1 · S-006P (6F22) dry cell battery x1 · Sound hole cover x1 PRECAUTIONS l l l Always set the VOLUME control to "0" when plugging in or unplugging the connection cable. The battery check indicator (BATT. ) will light briefly when a guitar cable is inserted or removed from the output jack. [. . . ] The battery check indicator (BATT. ) will light briefly when a guitar cable is inserted or removed from the output jack. This is normal and does not indicate a malfunction. The built-in preamplifier is automatically turned on when a guitar cable is inserted into the output jack. When not using the instrument, or when playing it without amplification, be sure to remove the guitar cable from the output jack so that the preamplifier power is turned off. Also, even when the power is switched off, the system consumes a small amount of power for the tuner standby mode. If the instrument is not going to be used for an extended period of time, we recommend that the battery be removed in order to avoid power consumption or leakage. Accessories BATTERY REPLACEMENT Be sure to replace the battery as soon as possible when the battery check indicator lights in order to avoid reduced sound quality. q Press the release lever on the battery holder in the direction indicated by the arrow in the illustration in order to unlock it. *ItmaytakeafewsecondsbeforethetunercandetectpitchesafterbeingswitchedON. *The note name and displays may have difficulty keeping up with irregular pitchchanges. Graduallychangethepitchandcheckwhentuning. *Thetunermayhavedifficultydetectingnotesrichwithovertonesorwithveryshortsustain. *Thebatterycheckindicatormaylightmomentarilywhenthetunerbuttonispressed. Thisisnotasignhowever, thatthebatterypowerislow. Thebatterycheckindicator lightscontinuouslywhenbatterypowerislow. Pleasechangethebatteryatthistime. w BATT. (BatteryCheck)Indicator This indicator will light when the battery needs to be replaced. Please replace the battery as soon as possible when the BATT. indicator lights. *ThebatterycheckindicatormaylightmomentarilywhentheTUNERswitchis pressed. Thisisnotasignhowever, thatthebatterypowerislow. e 3BandEqualizer LOW : Boosts or cuts the level of the low frequencies. [. . . ] Please replace the battery as soon as possible when the BATT. indicator lights. *ThebatterycheckindicatormaylightmomentarilywhentheTUNERswitchis pressed. Thisisnotasignhowever, thatthebatterypowerislow. e 3BandEqualizer LOW : Boosts or cuts the level of the low frequencies. MID : Boosts or cuts the level of the middle frequencies. [. . . ]