Roland v-synth xt 业主指南
195
Troubleshooting
Appendices
Deleting Incorrect Device Information
Use the following procedure to re-install the driver.
1.
Turn off the power of your computer, and start up Windows with all USB cables disconnected (except for
keyboard and mouse).
2.
After Windows restarts, use a USB cable to connect the V-Synth XT to your computer.
3.
Turn on the power of V-Synth XT.
4.
Click the Windows Start button, and from the menu that appears, choose Settings | Control Panel.
5.
Double-click the System icon. The System Properties dialog box will appear.
6.
Click the Device Manager tab.
In Windows XP, select the System Properties Hardware tab, and click Device Manager.
7.
Check whether “Roland V-Synth XT” with an “!” or “?” symbol is displayed below “Other Devices,” “Sound,
Video, and Game Controllers,” or “Universal Serial Bus Controller.” If you find any such indication, select it
and click [Delete].
8.
A dialog box will ask you to confirm deletion of the device. Verify the contents of the dialog box, and then click
[OK]. In the same way, delete all occurrences of “Roland V-Synth XT” that have an “!” or “?” symbol.
9.
Check whether “Composite USB Device,” “USB Device,” or “USB Composite Device” with an “!” or “?”
symbol is displayed below “Other Devices,” “Sound, Video, and Game Controllers,” or “Universal Serial Bus
Controller.” If you find any such indication, you need to determine whether it has appeared because the V-
Synth XT has been detected incorrectly, or because there is a problem with some other device. To determine
this, switch off the power of the V-Synth XT.
* If the “Composite USB Device” (or other) indication disappears when you turn off the power of the V-Synth XT, then it is the V-
Synth XT that has been incorrectly detected. Return to step 2 and continue the procedure, and when you reach step 8, delete the
information that was detected incorrectly. If the indication does not disappear when you turn off the power of the V-Synth XT,
then this indication refers to a different device. Do not delete it.
information that was detected incorrectly. If the indication does not disappear when you turn off the power of the V-Synth XT,
then this indication refers to a different device. Do not delete it.
“Composite USB Device,” “USB Device,” or “USB Compatible Device” may sometimes indicate a device other than the V-Synth
XT. Be careful not to accidentally delete the registration for another device. If you delete the registration for another device, you
will have to reinstall the driver for that device.
XT. Be careful not to accidentally delete the registration for another device. If you delete the registration for another device, you
will have to reinstall the driver for that device.
“Found unknown device” ap-
pears even though you in-
stalled the driver
pears even though you in-
stalled the driver
If your computer or USB hub has two or more USB con-
nectors, and you connect the V-Synth XT to a USB con-
nector to which the V-Synth XT has never been
connected before, the “Unknown device” dialog box
may appear even on a computer onto which you have
already installed the driver.
nectors, and you connect the V-Synth XT to a USB con-
nector to which the V-Synth XT 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 Readme file on the included CD-ROM, and in-
stall the driver once again. This is not a malfunction.
If the “Found unknown device” dialog box appears
even though the V-Synth XT is connected to the same
USB connector as before, it is possible that the comput-
er has detected the V-Synth XT incorrectly. As de-
scribed in
stall the driver once again. This is not a malfunction.
If the “Found unknown device” dialog box appears
even though the V-Synth XT is connected to the same
USB connector as before, it is possible that the comput-
er has detected the V-Synth XT incorrectly. As de-
scribed in
(p. 195), delete the incorrect device information, then
re-install the driver.
re-install the driver.
An “Unknown driver found”
dialog box appears, and you
are unable to install the driver
Device Manager shows “?”,
“!”, or “USB Composite De-
vice”
Driver is not installed correct-
ly
dialog box appears, and you
are unable to install the driver
Device Manager shows “?”,
“!”, or “USB Composite De-
vice”
Driver is not installed correct-
ly
It is possible that the computer has detected the V-
Synth XT incorrectly.
Synth XT incorrectly.
As described in
then re-install the driver.
Can’t install/delete/use the
driver in Windows XP/2000
driver in Windows XP/2000
Did you log on to Windows as a user with administra-
tive privileges?
tive privileges?
In order to install/delete/re-install the driver in Win-
dows XP/2000, you must be logged into Windows as a
user with administrative privileges, such as Adminis-
trator. For details, please contact the system adminis-
trator for your computer system.
dows XP/2000, you must be logged into Windows as a
user with administrative privileges, such as Adminis-
trator. For details, please contact the system adminis-
trator for your computer system.
Did you make “Driver Signing Options”?
In order to install/re-install the driver, you must make
“Driver Signing Options.”
“Driver Signing Options.”
Windows XP/2000 displays a
“Hardware Installation” or
“Digital Signature Not Found”
dialog box
“Hardware Installation” or
“Digital Signature Not Found”
dialog box
Did you make “Driver Signing Options”?
In order to install/re-install the driver, you must make
the settings described in “Driver Signing Options.”
the settings described in “Driver Signing Options.”
Problem
Cause
Action
V-SYNTH_XT_e2 195 ページ ２００５年３月２３日 水曜日 午後４時３９分