Yamaha SGV Owner's Manual - Page 8

Setting the Intonation Adjust the intonation by comparing the note fingered at the 12th fret with the harmonic tone at the 12th fret. Tune so that both pitches are the same. It is recommended that you use good quality strobe tuning scope for this function. * Please use the supplied Allen wrench to adjust the octave adjustment screw. • If the pitch of the note played on the 12th fret is sharp compared to the harmonic tone → Turn the octave adjustment screw to the right (clockwise). (Move the saddle further away from the neck.) • If the pitch of the note played on the 12th fret is flat compared to the harmonic tone → Turn the octave adjustment screw to the left (counter-clockwise). (Move the saddle closer to the neck) If the pitch at the 12th fret is flat compared to the harmonic tone → Turn to the left (counter-clockwise) If the pitch at the 12th fret is sharp compared to the harmonic tone → Turn to the right (clock- wise) Octave adjustment screw 8