[. . . ] BATTERY REPLACEMENT Electric Acoustic Guitar Owner's Manual This Yamaha electric-acoustic guitar incorporates a new pickup and electronics system designed to capture and deliver a real acoustic sound like that of an acoustic guitar recorded with a microphone. In order to make the most of the advanced features and performance provided by your guitar, please read this manual carefully before using the instrument. As battery power becomes depleted, the triangular icons blink alternately ( ) in the display, replace the batteries as soon as possible. q Press the release lever on the battery case in the direction indicated by the arrow in the illustration in order to unlock it, and then slide out the battery holder. Battery Holder Alkaline battery x2 w Remove the old batteries from the battery holder, and insert the two new size AA alkaline batteries. [. . . ] (The *Itmaytakeafewsecondsbeforethetunercandetectpitchesafterbeingswitched ON. Pickup Section Output Jack (with power switch function) displaysmayhavedifficultykeepingupwithirregular *Thenotenameand pitchchanges. Graduallychangethepitchandcheckwhentuning. *Thetunermayhaveadifficulttimedetectingnotesrichwithovertonesorwithvery shortsustain. *Soundoutputismutedwhenthetunerisinuse. qVOL Control: Controls the volume. *Alwayssetthevolumetoitsminimumlevelwhenconnectingordisconnectingthe cable. l Calibration (changing the reference pitch) The tuner's reference pitch can be adjusted within a range of A = 438 to 445Hz (set to 440Hz when the power is switched ON). w3-Band Equalizer: Adjusts the LOW, MID, and HIGH frequency levels. tTYPE Switch: Selects the pickup's mic simulation type (1: large diaphragm condenser mic/ 2: small diaphragm condenser mic/ 3: ribbon mic). FOCUS: This setting delivers a clear tone appropriate for use when playing with a band. uRESONANCE Control: Rotating to the right delivers more body tone, rotating to the left produces less. iBLEND Control: Controls the mix level of signals received from the pickup and the simulated mic. Rotate fully to the left for 100% pickup signal and fully to the right for 100% simulated mic signal. oA. F. R Switch: When feedback occurs, this function automatically detects the problem frequency and applies a filter to eliminate the feedback. [. . . ] May differ due to operating conditions. ) l Tuner: Chromatic type (12 semi-tones), Calibration (A= 438 to 445Hz), Accuracy range +/­ 3 cents l Accessories: Neck adjustment hex-wrench x1, Size AA alkaline battery x2, Sound hole cover x1 e Hold the A. F. R switch until " " appears in the display to cancel all notch filters. Or, switch off the power (unplug cable from output jack) to cancel all notch filters. [. . . ]