Tune Your Guitar - Zoom GFX-4 Operation Manual

Operation Guide 4
The GFX-4 has a built-in auto-chromatic tuner for guitars. To use the tuner function, the built-in effects must be bypassed
(temporarily turned off) or the unit must be muted (original sound and effect sound turned off).
Set the GFX-4 to bypass
1
(mute)
When the GFX-4 is in program mode, press
and release the foot switch of the currently
selected patch (the switch whose LED is lit).
Pressing and immediately releasing the foot switch sets
the unit to the bypass condition, and the indication "BP
440" is shown on the display.
Pressing and holding the foot switch for more than 1
second sets the unit to the mute condition, and the
indication "MT 440" is shown on the display.
While the GFX-4 is in bypass mode, the expression
pedal cannot be used as a volume pedal for the
guitar OUTPUT MONO jack.
14
ZOOM GFX-4
Using the Tuner (Bypass/Mute) Function
When GFX-4 is in manual
mode, press and
immediately release
BANK L switch.
When GFX-4 is in manual
mode, press BANK L
switch for about 1
second.
2

Tune your guitar

Play the open string you want to tune, and watch the
GROUP/BANK indicator.
The GFX-4 automatically detects the pitch and the indicator shows
the note which is closest to the current pitch.
For tuning, always play a
single note. If you play a
chord, the pitch will not be
detected correctly.