33
Chapter 6 Appendices
Troubleshooting
During Normal Performance
Using the GR-20 Alone
●
Playing your guitar does not produce a synth sound
◆
Could the OUTPUT LEVEL have been lowered?
→
Use the rear panel [OUTPUT LEVEL] knob to raise the
◆
Could the volume of the GK pickup be turned down?
→
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?
→
Perform the adjustment (p. 12).
●
When using Pitch Glide (or the pitch function of the
expression pedal), the pitch does not rise all the way
◆
Depending on the tone or the region of pitch, the range of
upward change may be restricted for functions that
modify the pitch continuously.
→
Use a narrower range of change (p. 22, p. 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).
→
Check the effect of each patch beforehand.
●
Internal effects not applied to the guitar sound
◆
The 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 a single
amp, use the MIX IN jacks as well.) (p. 17)
●
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
◆
This is a 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 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.
●
Synth sound is delayed when you play from a bass
guitar
→
The GR-20 analyzes the output of the divided pickups,
and produces the synth sound after the pitch and
loudness have been detected.
Due to the laws of physics, lower pitches take more time
to analyze. This means that with a bass guitar, and its
inherently lower pitches, you should expect that it may
take longer for the synth sound to begin.
GR-20_e.book 33 ページ ２００７年７月２日 月曜日 午後１２時５３分
