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Chapter 5 Appendices
Troubleshooting
If there is no sound or other operational problems occur, first check through the following solutions. If this does not resolve the
problem, then contact your dealer or a nearby Roland service station.
The volume fluctuates from one string
to another
❏ Are the “SENSITIVITY” settings correct for each
string?
→ Adjust the settings as required. (p. 11)
❏ Is the GUITAR/BASS switch on the rear panel set
correctly?
→ Switch to GUITAR if you are using a guitar; if using a
bass, switch this to BASS. (p. 10)
Pitch doesn’t rise when using Pitch Glide
(or the expression pedal Pitch function)
❏ Functions that vary pitch continuously may experience
a limited range of change during rising pitch due to the
register.
→ If a limitation is encountered, use with a narrower width
of change. (p. 22)
Pitch doesn’t change smoothly
❏ Is “BEND RANGE” (p. 23) set to “Chromatic Type 1–
3”?
→ Set BEND RANGE to anything other than Chromatic
Type for patches that require continuous changes in
pitch. (p. 23)
❏ Is data being sent in the Poly mode (p. 14) ?
→ When transmitting in the Poly mode, pitch changes
during chord performances are in semitone steps. Play
with single notes, or use the Mono mode to send data.
❏ Is the Bend Data Thin function (p. 31) in use?
→ Using this function may result in a slight loss of
smoothness when pitch changes, even during normal
play. Do not use the Bend Data Thin function when it is
not needed.
❏ Is BEND RANGE MAX (p. 32) or BEND RANGE (p. 23)
set to anything other than 24?
→ With BEND RANGE MAX set to anything other than 24,
if Glide Up/Down 5–8 or Pitch Bend 3 or 6 is used in
Assign (p. 19), then changing the pitch by an octave
causes retriggering.
Set BEND RANGE MAX and BEND RANGE to 24.
❏ Is “BEND RANGE” (p. 23) set to “1” or “2”?
→ When matching with sending and receiving, use as large
a value as possible.
The sound doesn’t vary when the
settings are changed
❏ Is the setting being changed one of the parameters that
can be made independently for each string, and is the
setting affecting only a particular string?
→ Use [TUNER (STRING)] to select “ALL.”
No sound from the external sound
module
❏ Do the MIDI channels for sending and receiving
match?
→ Make sure the MIDI channels match. (p. 14)
❏ The volume level of the external sound module may
have been lowered by a MIDI Volume message
(Control Change No. 7) sent from the GI-20.
→ Raise the volume on the GK-2A/GK-2B.
❏ Make sure the volume on the GK-2A/GK-2B or the
expression pedal has not been turned down too low.
→ Use the controls to increase the volume.
❏ Is “STRING MUTE” (p. 26) set to “On”?
→ If “STRING MUTE” is set to “On”, note messages cannot
be transmitted. Please change it to “Off.”
❏ The value of Bank Select in “PRG CHANGE” (p. 25) is
set to the value that does not match the sound module.
→ Check the Patch setting on the GI-20 and the
specifications of the Bank Select on the sound module.
The external sound module plays only one
string (some strings can’t be heard)
❏ Is the GI-20 using the Mono mode to send data to a
sound module which cannot simultaneously receive
data on six MIDI channels?
→ For such sound module, send data in the Poly mode.
(p. 14)
