Rocktron Reaction Tuner - Manual (Page 9)

Tuning Instructions:
Step 1 - plug the guitar/bass into the tuner - see “connec-
tions” section.
Step 2 - play a note on your guitar. Pluck your E string,
if needed, adjust your tuning machine on your instrument
until the letter “E” appears in the NOTE Display window.
Step 3 - if your note is flat - the “FLAT” LED will light
and flash. The speed of the flash will show you by how
much your string is flat. If the Flat LED is flashing
rapidly, tune your string up. During this process the LED
will begin flashing slower.
Step 4 - if your note is sharp - the “SHARP” LED will
light and flash. The speed of the flash will show you by
how much your string is sharp. If the Sharp LED is
flashing rapidly, tune your string down. During this
process the LED will begin flashing slower.
Step 5 - Continue with step 3 or step 4 until the flat or
sharp LED stops flashing and the blue “IN TUNE” LED
lights. At this point the string is in tune.
Step 6 - Continue steps 2-5 but using your other strings
on your guitar or bass.