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Troubleshooting
Is the driver installed correctly?
If you’re using Windows, you’ll need to install a driver in order to play back audio/
MIDI data via the UA-101.
Refer to:
Are you running numerous software programs?
An error message may appear if numerous software programs are running
simultaneously. If this occurs, close the software you are not using.
In Windows, a program is still running if it remains in the taskbar even after you
close its window; close any unneeded software shown in the taskbar.
Is the UA-101’s sample rate set to a rate other than 192 kHz?
If the UA-101’s sample rate select switch is set to 192 kHz, the digital output
connector and the digital input connector are not available.
Are your input/output devices connected correctly?
In order to play back audio/MIDI using the UA-101, you must make the
appropriate input/output device settings. For details on making these settings,
refer to
If you are using the 192 kHz sample rate on Windows XP, the UA-101 may not
appear in the Sounds tab of the Sounds and Audio Devices Properties dialog box. If
so, please update your system to Windows XP Service Pack 1.
Could the UA-101 have been connected when you started up the computer?
Start up the computer with the UA-101 disconnected, and then connect the UA-101.
Depending on the type of computer you are using, starting up the computer when
the UA-101 is already connected may cause operation to be unstable. In this case,
start up your computer and then connect the UA-101.
Does the USB connector of your computer support USB 2.0 (Hi-Speed)?
If your computer has correctly recognized the UA-101 in Hi-Speed USB mode, the
USB indicator will light red. If this indicator is lit green, the UA-101 has been
recognized in Full-Speed USB mode.
If the indicator is blinking, the UA-101 has not been recognized correctly.
Refer to:
When blinking red
Hi-Speed USB mode
It is possible that the USB connector of your computer does
not support USB 2.0. Please refer to the owner’s manual for
your computer for details about its USB connectors.
When blinking green
Full-Speed USB mode
In Full-Speed USB mode, only sample rates of 44.1 kHz and
48 kHz are supported.
It may be that the sample rate select switch is set to a rate oth-
er than 44.1/48 kHz.
UA-101_e.book 49 ページ 2007年8月6日 月曜日 午後1時23分