Roland V-Synth owner manual Problems Related to the USB Driver Macintosh, 148

Troubleshooting

10.A dialog box will ask you to confirm deletion of the device. Verify the contents of the dialog box, and click [OK]. Delete each unwanted occurrence of “Composite USB Device,” “USB Device,” or “USB composite device” indications with an “!” or “?” symbol.

11.Turn off the power of the V-Synth, then delete the driver.

12.Restart Windows. Then install the driver once again.

*If the problem still occurs after you have taken the above measures, please refer also to the Readme file for the USB driver. The Readme file is on the CD-ROM.

Problems Related to the USB Driver (Macintosh)

Problem	Cause	Action
A message of “Drivers need-	It is possible that the V-Synth’s USB MIDI driver has	Correctly install the USB MIDI driver as described in
ed for the USB device “V-	not been correctly installed in your computer.	Readme file on the included CD-ROM.
Synth” are not available.	It is possible that there is a conflict with the driver	We are aware of a problem that causes the V-Synth to
Would you like to look for	(function extension) of another USB device.	not be recognized correctly if a driver for I-O Data Cor-
these drivers over the inter-		poration’s USB CD-R drive is installed. In this case, dis-
net?” is displayed		able “ISD 200 BOTBridge” or other driver file by
		moving it out of the Extensions folder, located within
		the system folder.
When the computer returns	The V-Synth’s USB MIDI driver does not support the	Do not use the Sleep functionality of Mac OS. When
from the Sleep state, an indi-	Sleep functionality of Mac OS.	you use the V-Synth, open the “Energy Saver” control
cation of “MIDI off line!” ap-		panel and specify “Never” as the period of inactivity
pears		before the system goes to sleep.

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