SE-70: The SE-70's Built In Tuner
One of the most innovative features found in the SE-70 is the built-in
chromatic tuner. Use the following procedure to activate the tuner:
1) Press UTILITY or use and optional FS-5U foot switch plugged into the
CONTROL jack on the back of the unit.
Once activated, the tuner mutes the guitar signal and you use the LCD display
to tell you what note you are playing and a graph is used to center your pitch
into tune. The tuner even features two extra pitch modes for a bass and other
types of instruments.