Roland GT-PRO Owner's Manual download pdf (Page 144)

144

Troubleshooting

Oscillating sound occurs

❏ Is the value for any gain- or volume-related effects

parameter set too high?

→ Lower these values.

❏ Is the SYS: Input Select (p. 96) set to “USB In?”

→ When set to “USB In,” audio signals may, depending on

the software settings, end up looping. You can use the

following methods to prevent this from happening.

• Stop playback with the software, and set Soft Thru to

Off.

• Switch the software's audio input off.

• Change SYS: Input Select to “Guitar In.”

No change in preamp tone even after

switching patches

❍ Has the GT-PRO been set to “System” (p. 98) in

Preamp mode?

→ When the GT-PRO is set to “System” in Preamp mode,

the preamp settings do not change when patches are

switched.

To make different preamp settings for individual

patches, choose the “Patch” setting in Preamp mode.

Unable to change parameters with the

knobs or PATCH/VALUE dial

❍ Are you using the Internal Pedal System (p. 70) in

Assign?

→ When the Assign Source is set to “Internal Pedal” or

“Wave Pedal,” the effect parameter set as the Assign

Target changes automatically.

If you want to be able to change the parameters

manually with the knobs and PATCH/VALUE dial, first

switch off Assign to deactivate the Internal Pedal

System.

❍ Is “INPUT LEVEL” (p. 69) set as the Assign Source in

Assign?

→ When “INPUT LEVEL” is set for the Assign Source, the

effect parameter set as the Assign Target changes

automatically according to the level of the input from the

guitar (the playing dynamics).

If you want to be able to change the parameters

manually with the knobs and PATCH/VALUE dial, first

switch off Assign.

Other Problems

Patch does not change

❏ Is something other than the Play screen shown in the

display?

→ On the GT-PRO, patches can be selected only when the

Play screen is displayed. Press [EXIT] to return to the

Play screen (p. 16).

Parameters specified with Assign can’t

be controlled

❏ Could the effect be switched off?

→ To control a parameter using the expression pedal or

foot switch, make sure the effect that contains the

parameter you intend to control is switched on.

❏ Is something other than “Assignable” selected for the

CTL 1, 2, 3, 4 function setting?

→ When operating the foot switches connected to the CTL

1/2 and CTL 3/4 jacks, set the CTL 1, 2, 3, 4 function (p.

62) to “Assignable.”

❏ Is something other than “Assignable” selected for the

EXP 1, 2 function setting?

→ When operating the EXP pedal connected to the EXP

PEDAL 1 and EXP PEDAL 2 jacks, set the EXP 1, 2

function (p. 63) to “Assignable.”

❏ Is something other than “Assignable” selected for the

CC#7, CC#8, CC#1 function setting?

→ When operating the the FC-200 or other external MIDI

device, set the CC#7, CC#80, CC#1 function (p. 64) to

“Assignable.”

❏ Do the MIDI channel settings of both devices match?

→ Make sure that the MIDI channels of both devices match

(p. 73).

❏ Do the controller number settings of both devices

match?

→ Make sure that the controller number of both devices

match (p. 69).

MIDI messages are not transmitted/

received

❏ Are the MIDI cables broken?

→ Try another set of MIDI cables.

❏ Is the GT-PRO correctly connected to the other MIDI

device?

→ Check connections with the other MIDI device.

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Roland GT-PRO Owner's Manual Page 144

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