[. . . ] SPECIFICATIONS ELECTRIC ACOUSTIC GUITAR Owner's Manual Thank you for choosing a Yamaha electric-acoustic guitar. [. . . ] e Remove the old battery from the battery case, and insert the new battery making sure that the (+) and (­) terminals of the battery are positioned as shown in the illustration. r Slide the battery case back into the battery holder and press firmly so that the battery case locks into place. q w, r w OP EN Battery case EN OP e DC9V S-006P (6F22) r Sound Hole Cover (Accessory) Output Jack (with power switch function) Catch USING THE SOUND HOLE COVER wq e Feedback often occurs when controls are boosted on the electric acoustic guitar to match the volume of other instruments when playing in a band. When the instrument is used under the conditions described above, the Sound Hole Cover should be inserted into the sound hole. With the Sound Hole Cover in place, feedback is effectively reduced. THE CONTROLS q VOL. (Volume) Control Adjusts the overall output volume level. * Make sure that the VOL. is turned to "0" before connecting or disconnecting. w BATT. (Battery Check) Indicator This indicator will light when the battery needs to be replaced. indicator lights. USING THE TUNER The guitar is equipped with an A4=440Hz standard pitch tuner. [. . . ] * The tuner may have difficulty detecting notes rich with overtones or with very short sustain. t Tuner Switch Switches the tuner ON/OFF. y Tuner Display Displays tuner information. [. . . ]