Boss Audio Systems GT-6B User Manual

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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?
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
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).