[. . . ] NOMENCLATURE/THE CONTROLS ELECTRIC ACOUSTIC GUITAR Owner's Manual Thank you for choosing a Yamaha electric-acoustic guitar. [. . . ] Pushing the knob down and into the guitar when not in use retains the instrument's clean lines and also helps prevent mistaken operation. Push the knob again to adjust the volume. * Make sue that the knob is pushed down before storing the guitar in the case. Bass Side Sub Pickup Treble Side Sub Pickup * Pickup locations shown in the illustration above are only approximations and not exact representations of their locations. q Master Volume Control (VOL. ) The 3 mixed pickup levels are sent to the VOL. , which adjusts the overall sound output level. * Make sure that the VOL. level will produce no sound if all pickup level controls are set to "0". 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. * Be sure to remove the battery if the instrument will not be used for an extended period of time in order to prevent possible damage due to battery leakage. * Always dispose batteries in accordance with local laws and regulations. w Pickup Level Controls MAIN : Controls the volume of the main pickup. The Main Pickup delivers a balanced sound output of the acoustic guitar's basic tonal elements. Mixing in the dynamics and harmonic overtones produced by the sub pickup outputs can be used to achieve a wide range of tonal variations. [. . . ] With the Sound Hole Cover in place, feedback is effectively reduced. * Remove the sound hole cover before storing instruments with lacquer finishes (L 36 models, etc. ). [. . . ]