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Troubleshooting
If the GR-55 is not producing sounds or if you think it is not operating properly, rst check the following points. If checking these points fails to resolve
the problem, consult your dealer or the nearest Roland service center.
During normal performance using the GR-55 alone
Problem Items to check Action Page
No sound/Low volume
Is the [OUTPUT LEVEL] knob turned
down completely?
Adjust the knob to an appropriate setting. p.16
Could the volume of the GK pickup be
turned down?
Raise the volume of the GK pickup to an appropriate level. p.16
Could the select switch of the GK
pickup be set to “GUITAR”?
Set the switch of the GK pickup to GK (or SYNTH) or MIX. p.22
Could the expression pedal be
released?
Depress the expression pedal. p.20
Could the PATCH LEVEL be turned
down?
Try raising the PATCH LEVEL in the EZ EDIT or other screen. p.18
Is there a short in any connecting
cable?
Try replacing the connecting cable. —
Are the GR-55 and other devices
connected properly?
Check the connections with the other devices. p.8
Is the power to the connected amp or
mixer not turned on, or is the volume
turned down?
Check the settings for the connected device. —
Is the tuner on?
The direct sound is not output when the tuner is on if the volume setting
during tuning is set to “MUTE ON.”
p.13
If there are no sounds through USB,
are the [SYSTEM] - USB settings
correct?
Adjust the settings to the appropriate values. p.80
Is the [SYSTEM] - USB - DIRECT MON
switched o?
Set this to ON. p.80
Unwanted synthesizer sound is
heard when you play softly
Check the setting for “VELOCITY”
under “GK SETTING.”
If you raise the LOW VELOCITY CUT value, unwanted triggering will be
reduced; softly played notes will be less likely to sound.
p.75
Synthesizer sound is inconsistent
in volume
Adjust the “PLAY FEEL” parameter.
The “5” setting gives you a completely xed velocity and sound regardless
of your playing strength (picking).
p.75
Volume is uneven among the
strings
Was the “GK SENS” setting adjusted
correctly for each string?
Perform the adjustment. p.10, p.11
Is the GK pickup attached correctly?
Refer to the manual of your GK pickup, and attach the GK pickup correctly.
On the Roland website, the “GK-3/3B Installation Tips” page provides an
explanation and photos on how to attach a GK pickup. Be sure to take a
look!
http://www.roland.com/GK/
—
When using the GR-55’s pedal
eects or expression pedal, the
result is dierent for each patch
The eect produced using the
expression pedal is dierent for each
sound (patch).
Check the eect of each patch beforehand. —
The pitch of the synth sound does
not change in the same way as the
pitch of the guitar
The pitch of some tones (such as
percussion instruments and sound
eects) will change in a dierent way
than the pitch of your guitar.
It does not indicate a malfunction. —
The pitch changes in half-steps
when bending or etc.
On some sounds (patches) such
as piano or organ, the pitch will
not change smoothly, but change
only in semitone steps. This is done
intentionally in order to make the
instrument sound more realistic.
It does not indicate a malfunction. —
Oscillation occurs
In the eect settings, could a gain
value or volume-related parameter be
set too high?
Decrease the value. p.41
Cannot change parameters with
pedals or buttons
Are you using INTERNAL PEDAL with
Control Assign?
When INTERNAL PEDAL or WAVE PEDAL is used for the assign source, the
eect parameters set as the assign targets change automatically.
If you want to change parameters with the knobs or PATCH/VALUE dial, rst
switch o Control Assign and cancel the INTERNAL PEDAL setting.
p.57
Patches not switching
Is some screen other than the Play
screen shown in the display?
With the GR-55, you cannot switch patches in any screen other than the
Play screen. Press the [EXIT] button one or more times to return to the Play
screen.
p.20
Unable to control parameters set
with Assign as expected
Are the eects switched o?
Check to make sure the eects incorporating the parameters being
controlled are on.
p.38
Are the MIDI channels matched?
When carrying out operations using MIDI, check to conrm that both
devices are set to the same MIDI channel.
p.79
Are the controller numbers (CC#)
matched?
Check to conrm that the controller numbers you are using are the same. p.79