Rocktron Velocity VH 160 R - Manual (Page 10)

3) If the note being played is flat, the FLAT Arrow, will be flashing as shown below. This shows by “how
much” the guitar is out of tune from the note being played (in standard 440Hz tuning).
4) Tune the string “up” until the center green LED is lit. As you are tuning the string up, the FLAT Arrow
will decrease the flashing speed as you approach the IN-TUNE LED. Once this Green IN-TUNE LED is
lit, the note is in tune.
5) If the note being played is sharp, the SHARP Arrow, will be flashing as shown below.
5) Tune the string “down” until the center green LED is lit. As you are tuning the string down, the SHARP
Arrow will decrease the flashing speed as you approach the IN-TUNE LED. Once this Green IN-TUNE
LED is lit, the note is in tune.
6) To tune the string to a sharp or flat note, such as D# or Eflat tune the string up or down until the dot
between the D and E (as shown below) is lit. The illustration below shows the string in Tune to D# (Eflat).
7) Follow instructions 3-5 (above) to accurately tune the string to D# (Eflat)