USB Audio Controller Hardware Manual
35
Troubleshooting
Installation does not 
finish successfully when 
you connect the 
V-STUDIO 20 hardware.
It may take between several tens of 
seconds and several minutes after 
you power-on the V-STUDIO 20 
until it is recognized by your 
computer.
This is not a malfunction.
Please wait until the Found New Hardware Wizard appears.
Is the V-STUDIO 20 connected? Once again, make sure that the V-STUDIO 20 is correctly connected to your computer.
Could your computer be operating 
on its battery?
Operation may not be stable if your computer is operating on its battery. Please 
connect your computer to a power supply.
Could other USB devices be 
connected?
Perform the installation with all USB devices (other than a mouse and keyboard) 
disconnected from your computer.
Does your computer meet the USB 
specifications?
Operation may be unstable if your computer does not meet the electrical requirements 
of the USB specification.
In this case, you may be able to solve the problem by connecting a self-powered USB 
hub (a USB hub that has an internal power supply or AC adaptor).
“Found New Hardware 
Wizard” appears even 
though you installed the 
driver (Windows XP)
Could you have connected the 
V-STUDIO 20 to a different USB 
connector of your computer than 
when you installed the driver?
If your computer or USB hub has two or more USB connectors, connecting the 
V-STUDIO 20 to a different USB connector may cause the “Found New Hardware 
Wizard” to appear even though the driver has already been installed.
This is not a malfunction. 
Install the driver as described in “Installing the VS-20 Driver” (p. 11).
A numeral such as “2-” 
has appeared in front of 
the device name 
(Windows Vista)
Could you have connected the 
V-STUDIO 20 to a different USB 
port?
If you connect the V-STUDIO 20 to a different USB port, the operating system may 
automatically add a number at the beginning of the device name; this is not a problem 
for using the V-STUDIO 20. If you want to return to the device name without this 
number, you can either connect the V-STUDIO 20 to the same USB port as when you 
installed the driver, or reinstall the driver. -> 
“Installing the VS-20 Driver” (p. 11)
Problem Points to check Action
VS-20_e.book 35 ページ 2010年1月18日 月曜日 午前9時8分










