Roland GT-PRO Owner's Manual download pdf (Page 145)

145

Troubleshooting

❏ Do the MIDI channel settings of both devices match?

→ Make sure that the MIDI channels of both devices match

(p. 73).

❏ When you send messages from the GT-PRO, make sure

the GT-PRO is set to the settings appropriate for

sending data.

→ Check the on/off status for transmission of program

change messages (p. 74) and the settings for the

controller numbers to be transmitted (p. 74) .

❏ Is the GT-PRO connected via USB?

→ The MIDI messages that the GT-PRO can transmit and

receive using a MIDI connection are different from those

when the GT-PRO is connected via USB. For more

detailed information, refer to “Notes Regarding the

MIDI Messages That Can Be Transmitted and Received”

(p. 73).

→ When the GT-PRO is connected to a computer via USB,

MIDI messages arriving at the MIDI IN connector cannot

be routed on to the computer. Likewise, MIDI messages

from the computer cannot be passed through and output

from the MIDI OUT connector.

Problems related to the USB Driver

An “Unknown driver found” dialog box appears,

and you are unable to install the driver

“Find new hardware wizard” does

not execute automatically

“Find new hardware wizard” ends

before the process is completed

❏ It may take about 15 seconds (or more) after the USB

cable is connected for the GT-PRO to be detected.

❏ Is the USB cable connected correctly?

→ Make sure that the GT-PRO and your computer are

correctly connected via a USB cable.

❏ Is USB enabled on your computer?

→ Refer to the operation manual for your computer, and

make sure that USB is enabled.

❏ Does your computer meet the USB specifications?

→ If you are using a computer that does not fulfill the

electrical requirements of the USB specifications,

operation may be unstable. In this case, you may be able

to solve the problem by connecting a USB hub.

❏ Does “Unknown device” appear for “Other device” or

“Universal serial bus controller”?

→ Use the following procedure to delete “Other device”

(Universal Serial Bus Controller) “Unknown device”,

and then restart your computer.

1. In the Windows Control Panel, double-click System.

The “System Properties” dialog box will appear.

2. Click the “Device Manager” tab.

3. Double-click “Other device” or “Universal Serial Bus

Controller” to display a list of devices.

4. From the list, select the unknown device and click

[Delete].

5. In the dialog box that asks you to confirm the deletion,

click [OK].

6. Verify that “Other device” or “Unknown device” is not

displayed in the list, and click [Close] to close the

dialog box.

“Found unknown device” appears

even though you installed the driver

❏ If your computer or USB hub has two or more USB

connectors, and you connect the GT-PRO to a USB

connector to which the GT-PRO has never been

connected before, the “Unknown device” dialog box

may appear even on a computer onto which you have

already installed the driver.

→ Refer to “Driver installation and settings (Windows)” (p.

110), and install the driver once again. This is not a

malfunction.

Driver is not installed correctly

→ As described in “Deleting the Special Driver” (p. 151),

delete the USB audio device driver that is installed in

your computer, and then install the GT-PRO driver once

again as described in “Driver installation and settings

(Windows)” (p. 110) Also check whether there is an

“Unknown device” in “Other devices” or “Universal

Serial Bus Controller.” If you find one, delete it.

Problems common to Windows and Macintosh

Problems occurring only in Windows

Problems occurring only in Macintosh

1 2 ... 140 141 142 143 144 145 146 147 148 149 150 ... 163 164

Comments to this Manuals

No comments

Roland GT-PRO Owner's Manual Page 145

Comments to this Manuals

Related products and manuals for Supplementary music equipment Roland GT-PRO