Troubleshooting; Error Messages; Problems When Using The Gt-Pro; Problems With The Sound - Boss GT-PRO Owner's Manual

Troubleshooting

Error Messages

If you attempt an incorrect operation or if an operation could
not be executed, the display will indicate an error message.
Refer to this list and take the appropriate action.
fig.12-0510d
●
The memory backup battery inside the GT-PRO has run
down. (This message will appear when the power is
turned on.)
❍ Replace the battery as soon as possible. For battery
replacement, please contact a nearby Roland service
center or your dealer.
fig.12-0520d
●
There is a problem with the MIDI cable connection.
❍ Check to make sure the cable has not been pulled out or
is not shorted.
fig.12-0530d
●
More MIDI messages were received in a short time than
could be processed correctly.

Problems when using the GT-PRO

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.

Problems with the sound

No sound / volume too low
❏
Are the connection cables broken?
→ Try using a different set of connection cables.
❏
Is the GT-PRO correctly connected to the other
devices?
→ Check connections with the other devices (p. 15).
❏
Is the connected amp/mixer turned off, or the volume
lowered?
→ Check the settings of your amp/mixer system.
❏
Is the OUTPUT MAIN/SUB knobs lowered?
→ Adjust the OUTPUT MAIN/SUB knobs to an
appropriate position (p. 17).
❏
Is Output Channel set correctly?
→ When Output Channel (p. 95) is set to "PATCH," the
output destination set with Master Output (p. 55) is
used.
❏
Is Tuner set to On?
→ When the volume is set to "Mute" in the Tuner mode,
even the direct sound will not be output by setting the
Tuner to "On" (p. 102).
❏
Is each effect set correctly?
→ Use the "Meter function" (p. 100) 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.
❏
Is "USB/DGT: Out Lev" set to a low value?
→ Adjust the setting to an appropriate value (p. 89).
❏
Is "FV: Level" or "MST: Patch Level" specified as an
assign Target?
→ Move the controller to which it is assigned.
❏
Is the power to the external device connected to the
SEND/RETURN jack off, or is the volume of the device
turned down?
→ Check the settings for the connected device.
Sound from devices connected to the INPUT
jack is not heard in the headphones
❏
The output from the PHONES jack is a mix of the output
from the MAIN OUT and SUB OUT.
→ Try adjusting both the MAIN and SUB volume knobs.
❏
Is the USB: Dir Monitor (p. 90) set to OFF?
→ Set to ON.
The volume level of the instrument connected to
INPUT and RETURN are too low
❏
Could you be using a connection cable that contains a
resistor?
→ Use a connection cable that does not contain a resistor.
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