Troubleshooting - Boss GT-5 Owner's Manual

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.
No Sound / Volume Too Low
Are the connection cables broken?
Try using a different set of connection cables.
Is the GT-5 correctly connected to the other devices?
Check connections with the other devices (page 10).
Is the connected amp/mixer turned off, or the volume
lowered?
Check the settings of your amp/mixer system.
Is the INPUT VOLUME knob lowered?
Adjust the INPUT VOLUME knob to an appropriate
position (page 11).
Is the OUTPUT Level knob lowered?
Adjust the OUTPUT Level knob to an appropriate posi-
tion (page 12).
Is Tuner/Bypass set to On?
When the volume is set to "MUTE" in the Tuner/Bypass
mode, even the direct sound will not be output by setting
the Tuner/Bypass to "On" (page 16).
Is each effect set correctly?
Use the "Meter function" (page 30) to check the output
level of each effect. If there is an effect for which the meter
does not move, check the settings for that effect (page 21).
Is "Master Level" specified as a control assign Target?
Move the controller to which it is assigned.
Sound Is Distorted
(the overload indicator lights frequently)
Have you adjusted the input volume knob?
Adjust the INPUT VOLUME knob to an appropriate
setting (page 11).
Even though you have set an effect to ON, the
Effect Select button goes out and the effect
gets switched OFF after a Write procedure has
completed.
If Assign Hold (page 33) has been set to ON, the ON/OFF
status of the effect set for the target of the Control Assign
(page 24) will take on the value of the source, so it may
differ from the status before the Write procedure.
To solve this, you can either set Assign Hold to OFF or
select Assign OFF for the relevant Control Assign.
Patch Number Does Not Change
Is something other than the Play page (page 11) shown in
the display?
On the GT-5, Patches can be selected only when the Play
page is displayed. Press [EXIT] to return to the Play page.
Parameters Specified with Control Assign Can't
Be Controlled
When using the expression pedal
When using the control pedal
Check that the effect that includes the parameter to be
controlled is set to Effect On.
When a foot switch is connected to the EXP/CTL jack
Make sure that the function of the jack to which the foot
switch is assigned is set to "Assignable" (page 30).
When using MIDI to control parameters
Make sure that the MIDI channels of both devices match
(page 58).
Make sure that the controller numbers you are using
match (page 24).
MIDI Messages Are Not Received
Are the MIDI cables broken?
Try another set of MIDI cables.
Is the GT-5 correctly connected to the other MIDI device?
Check connections with the other MIDI device.
Do the MIDI channel settings of both devices match?
Make sure that the MIDI channels of both devices match
(page 58).
When you send messages from the GT-5, make sure the GT-
5 is set to the settings appropriate for sending data.
Check the On/Off status for transmission of Program
Change messages and the settings for the Controller
Numbers to be transmitted (page 58).
Section 5 Appendix — 77