Roland GR-20 Owner's Manual page 32

Chapter 6 Appendices
Troubleshooting
During Normal Performance
Using the GR-20 Alone
Ө Playing your guitar does not produce a synth sound
Ф Could the OUTPUT LEVEL have been lowered?
~> Use the rear panel [OUTPUT LEVEL] knob to raise the
level appropriately (p. 12).
€ Could the volume of the GK pickup be turned down?
7* Raise the volume of the GK pickup to an appropriate
level.
@ 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.
€ Could the expression pedal be released?
=> Depress the expression pedal.
€ Could the LEVEL be turned down?
-> Try turning the [LEVEL] knob (p. 20).
Volume is uneven among the strings
€ Was the "GK SENS" setting adjusted correctly for each
string?
7» Perform the adjustment (р. 12).
When using Pitch Glide (or the pitch function of the
expression pedal), the pitch does not rise all the way
Ф Depending on the tone or the region of pitch, the range
of upward change may be restricted for functions that
modify the pitch continuously.
7* Use a narrower range of change (p. 22, р. 23).
When using the GR-20's pedal effects or expression
pedal, the result is different for each patch
€ The effect produced using the expression pedal is
different for each sound (patch).
7* Check the effect of each patch beforehand.
Menem a a
Ө internal effects not applied to the guitar sound
€ Тһе GR-20's internal effects can only be applied to the
synth sound. They cannot be applied to the normal
guitar sound.
— By using the guitar out jack you can apply an external
guitar effects processor only to the guitar sound. (If
you want the synth sound and guitar sound to share а
single amp, use the MIX IN jacks as well.) (p. 17)
Q 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 effects) will change in a
different way than the pitch of your guitar; it does not
indicate a malfunction.
@ You sometimes hear a thin, modulated noise in an
extremely high frequency range
Ф This isa phenomenon known as "aliasing noise,"
unique to digital sound generators. You may hear this
when playing a slide or when using the glide function.
This does not indicate a malfunction.
@ The pitch changes in half-steps when bending or ete.
% 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.
When Using the GR-20 with
other MIDI devices
Ө The external sound module connected to the MIDI OUT
connector does not sound
Ф Do the MIDI channels of the transmitting and
receiving devices match?
7? Match the MIDI channels (p. 29).
* Could you have turned down the volume using the
volume control of the GK pickup or the expression
pedal?
— Raise the controller or volume.
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