IMPORTANT SAFETY INSTRUCTIONSTASCAM US-1641 13 – InstallationTASCAM US-1641 1Updating the firmware for the US-1641TASCAM may release updates for the software that runson the microchip inside the US-1641. This is commonlycalled “firmware”. When your US-1641 is plugged into thecomputer, the US-1641 Control Panel shows what firmwareversion the unit is currently running. Visit TASCAM’swebsite (http://www.tascam.com) to see if a newer versionof the firmware is available. If so, you can download afirmware updater program for you computer that willupdate your US-1641’s firmware.Preparation Step 1:Install the latest driver on your PC or Mac computer.Preparation Step 2:Connect the US-1641 (for which firmware will be updated)to the computer via a USB cable.The firmware updater varies with the firmware versionof the unit.For PC (Windows XP) usersConnect the US-1641 to the computer via a USBcable.Run the firmware updater file (for PC) for theversion to which you wish to update.The system displays the following screen:Click the write firmware button.*1�2�3�When the update process is complete, the systemdisplays the following screen:Disconnect the USB cable from the US-1641.The system displays the following screen:Click the Exit button to complete the update opera-tion.For Mac (OS X) usersConnect the US-1641 to the computer via a USBcable.Run the firmware updater file (for Mac) for theversion to which you wish to update.Follow the steps for Windows PCs as describedabove. The screens displayed may appear slightlydifferent from those shown above, but their contentis essentially the same.4�5�6�1�2�3�