AC40 Service Manual Page 66
everything on your USB thumb drive*
Ensure that ‘FAT32 is selected as your File System- Leave other settings as listed9.
Click Start-depending on the size of your thumb drive these may take a while. When the format is complete 10.
you will receive a pop-up indicating it has formatted successfully
Copy “update_user.logo.bin” file onto the formatted thumbdrive11.
It is very important that this file and only this file is present on the USB thumb drive12.
With the audiometer turned off insert the thumb drive into any available USB port13.
Turn on the instrument and push the Temp/Setup Button from the Tone test screen14.
Enter “Common Settings” using the Setup/Tests Button15.
For the question “Do you want to install” press the “Yes” button16.
After installation is completed, press the “Back” button to get to the testing screen17.