Boss Audio Systems GT-6B - Manual (Page 74)

74
Appendices
Troubleshooting
If there is no sound, or if the GT-6B does not function as you
expect, first check the following points. If the measures in
this checklist do not resolve your problem, you should
contact your dealer or the nearest Roland Service Center.
No sound / Volume is weak
❍ Are the connection cables broken?
→ Try exchanging the connection cable.
❍ Is the GT-6B correctly connected to the other devices?
→ Check connections with the other devices (p. 12).
❍ Is the connected amp/mixer turned off, or the volume
lowered?
→ Check the settings of the connected device.
❍ Is the EFFECT LEVEL knob lowered?
→ Adjust the EFFECT LEVEL knob to an appropriate
position (p. 17).
❍ Is Tuner/Bypass set to ON?
→ The direct sound is not output by setting the Tuner/
Bypass to “On” (p. 56).
❍ Is each effect set correctly?
→ Use the “Meter function” (p. 59) to check the output level
of each effect. If there is an effect for which the meter is
not moving, check the settings for that effect.
❍ Is “FV: Level” or “MST: Effect Level” specified as a Pedal
Assign Target?
→ Carry out the operation in accordance with the source.(p.
50)
The volume level of the instrument
connected to INPUT jack is too low:
❍ Could you be using a connection cable that contains a
resistor?
→ Use a connection cable that does not contain a resistor.
I Can’t Change Patches
❍ Is something other than the Play screen shown in the
display?
→ On the GT-6B, patches can be selected only when the
Play screen is displayed. Press [EXIT] to return to the
Play screen (p. 10).
Parameters specified with control
assign can’t be controlled as intended
❍ Is the effect switched off?
→ To control a parameter using the expression pedal or
CTL pedal, make sure the effect that contains the
parameter you intend to control is switched on.
❍ Is something other than “Assignable” selected for the
SUB CTL 1,2 function setting?
→ When operating a foot switch connected to the SUB
EXP/SUB CTL 1, 2 jack, set the SUB CTL 1, 2 function to
“Assignable.” (p. 63)
❍ Do the MIDI channel settings of both devices match
(when using MIDI)?
→ Make sure that the MIDI channels of both devices match
(p. 65).
* When “Omni On” is selected in Omni mode, messages on all
MIDI channels are received, regardless of the MIDI channel
settings (p. 65).
→ Make sure that the controller numbers of both devices
match (p. 66).
Volume level does not change with
Foot Volume
❍ Is “OFF” selected in Bypass EXP Mode (p. 55) and Noise
Suppressor (p. 44)?
→ If “OFF” is set in Bypass EXP Mode, note the following:
• When all effects are set to OFF, the analog bypass sound
is output, and the volume cannot be controlled with Foot
Volume (p. 44).
• When CHORUS or REV/DLY are the only effects being
used, analog bypass sound is output for the direct
sound, so only the effect sound is controlled with the
FOOT VOLUME (p. 44).