Edirol UA-1EX Owner's Manual page 56

Are the power conservation settings of your computer turned off?
If power conservation settings are turned on for your computer, disable these settings. (For details on
how to disable them, refer to the owner's manual of your computer.)
Is there enough free space on your hard disk?
Delete unneeded files to increase the amount of free space.
After deleting the file(s), empty the recycling bin.
Is the UA-1EX's ADVANCED (mode select) switch set appropriately?
Set the UA-1EX's ADVANCED (mode select) switch to the appropriate position, then reinstall the
driver.
Is the USB connector enabled on your computer?
Refer to the owner's manual for your computer, and verify that the USB connector of your computer
is enabled. The driver cannot be installed unless the USB connector is enabled.
Does your computer or USB hub have a sufficient power supply?
If you are using bus power, the UA-1EX cannot be connected if insufficient power is being supplied to
it. Check whether the following cases might apply.
• If you are using a notebook computer running on its battery, operation may be unstable with some
computers. If this is the case, connect your computer to its AC adaptor.
• The power conservation mode of your computer may be limiting the power it supplies to the USB
connector. Re-examine the settings of your computer.
• The UA-1EX cannot be used with some bus-powered hubs (hubs that do not have their own power
supply). Use a self-powered hub (a hub that has its own power supply).
Does your computer meet the USB specification?
Operation may be unstable if you are using a computer that does not electrically meet the USB
specification. If so, you may be able to solve the problem by connecting a USB hub that has its own
power supply.
Can't install/uninstall the driver
Did you log onto Windows as a user with administrative privileges?
In order to install/uninstall/reinstall the UA-1EX driver in Windows, you must log onto Windows as
a user with administrative privileges, such as Administrator.
Did you make the "Driver Signing Options" setting?
You must set "Driver Signing Options" in order to install/reinstall the driver. (p. 16)
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