TASCAM US-2000 17Please read this chapter if you are unable to use the unitproperly even after setting it up following the procedures inthis manual.If you are still unable to resolve your problems pleasecontact TASCAM customer support with the followinginformation about the operating environment and detailsabout the trouble.Operating environmentComputer manufacturer:•Model:•CPU:•Installed memory:•OS:•DAW:•Antivirus software use:•Wireless LAN use:•Installation is failing.ªInstallation completed, but the computerdoes not recognize it.If some trouble is causing installation to fail, or installationcompletes but the computer does not recognize the unit,check the following.1) Is the unit’s USB indicator lit?If the USB indicator is not lit, confirm that the USBcable is properly connected.NOTEAlways use the included USB cable.2) Change the USB portSince the unit may not properly function with someUSB ports, try connecting to a different (built-in) USBport, and reinstall the driver.NOTETry again after disconnecting other USB devices.•(Keyboards and mice can be left connected.)Do not use a USB hub. Always connect the unit•directly to a USB port on the computer (built-in).3) Stop other software that is running in the backgroundSince antivirus software and other software that runs inthe background can interfere with installation, stop thembefore beginning installation.See page 10 of this manual for how to install and uninstallthe driver.There is no sound even when audio isªplaying back.The audio output must be set on the computer.Please confirm the following while the unit is connected tothe computer.If you make the following settings, sound will be outputthrough this unit, but no sound will be output by thecomputer’s speakers or headphone jack.Windows XPShut down all applications, and open the “Control1Panel” from the “Start Menu.”Open “Sounds and Audio Devices”2NOTEIf you cannot find the above item, click “Sounds, Speech,and Audio Devices” and it will appear.Click the “Audio” tab, and set the “Default device3 :”for “Sound playback” and “Sound recording” to“TASCAM US-2000.”Windows VistaShut down all applications, and open the “Control1Panel” from the “Start” menu.Open “Sound.”2NOTEIf the above item does not appear, click “Hardware andSound” and it will appear.Click the “Playback” tab, right-click “Speakers3US-2000” and click the “Set Default” button.Mac OS XShut down all applications and open “System1Preferences” from the Apple menu.Open “Sound.”2From the “Output” tab, select “US-2000: Output.”3After completing the settings, restart the computer andcheck the playback sound.Depending on the application you are using, it might also benecessary to make other device settings in addition to thoseabove.In particular, since DAW (Digital Audio Workstation)software operates using audio engines that are differentfrom the OS settings, confirm the DAW driver settings firstafter installing the driver for this unit.Please see the manual for the application that you are usingfor detailed setting procedures.For the bundled Cubase LE4 software, see the manual onthe included CD-ROM.The sound breaks up or there is noise.ªThe load on the computer causes sound to break up andnoise to occur.Methods to reduce the load on the computer are introducedbelow.1) If a wireless LAN, antivirus software and other softwarethat run in the background are operating, they regularlyput burdens on the computer, which can cause sound to7 – Troubleshooting