User manual ROLAND NF-1

[. . . ] Green Indicator: Auto CHROMATIC mode Red indicator: Manual GUITAR mode (for tuning a single specified guitar/bass string) Needle Meter Indicators These show the current note's name (C-B), natural or sharp status (#), the guitar/bass string number, the master reference pitch (438-445), and a warning when the battery is low. Rarely, the meter's needle may drift out of calibration, causing the needle to point slightly off from the 0 position even when the Tuning Guide's and indicators light simultaneously. This can occur over time as the unit is transported, or if the unit is handled in a rough fashion. During normal use, the meter's needle almost never drifts out of calibration. [. . . ] Tuning Guide The tuning indicator lights to show how close you are to the target pitch. Lights: pitch is flat (low) lights: pitch is sharp (high) light simultaneously: in tune (± 3 cents) (Sound button) Use this to turn the reference tone's sound on and off. Hold down [PITCH] and turn the power on. Confirm whether or not the needle is pointing at the 0 position. 0 mm precision screwdriver) to turn the meter adjustment control until the needle points to 0. After completing calibration, press [POWER] to switch off the power. When using battery power, if the NF-1 remains in the state described below for approximately thirty minutes after it was turned on, the power will automatically be switched off. Batteries Compartment (bottom of the unit) Insert two AAA size batteries. You can temporarily deactivate the Auto Power Off feature when you power up the NF-1. To do so, simultaneously hold down [ ] and [ ] while you press [POWER] to turn on the power. The Auto Power Off feature will be enabled the next time you turn on the power in the usual way. replace the batteries as soon as possible. * When turning the unit upside-down, place it on a soft cloth or the like so as to prevent damage to the panel. If you're tuning an acoustic instrument, use the built-in mic instead. To use the mic, make sure that nothing is connected to the INPUT or OUTPUT jacks, and place the NF-1 near the instrument. Press [ ] or [ ] to light the indicator for the string number you want to tune. Play the selected string number on your instrument. Play the string open, without fretting it. Open the battery compartment (located on the bottom of the unit) by sliding the cover toward OPEN. Remove the old batteries from the battery compartment. Insert two of the same type of fresh AAA batteries. * Make sure the "+" and "-" ends of the batteries are oriented correctly. [. . . ] * Do not mix fresh batteries with used ones, or mix batteries of different types. Slide the cover of the battery compartment back into place. Adjust the string's tuning so that both and on the Tuning Guide are lit and the meter's needle points to 0 (the 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. [. . . ]