Update Procedure - Firmware; Installing Mha (Master Hearing Aid) Wave Files; Ac40 Stand Alone Unit, Print Logo Update - Interacoustics AC40 Service Manual

AC40 Service Manual

Update procedure - Firmware

New firmware will be available on the Interacoustics web site and the firmware is packaged in a zip archive.
After archiving the firmware follow the instructions below.
1. Unzip the firmware archive on a new FAT32 formatted USB stick.
2. Insert the USB in the unpowered AC40 instrument.
3. Turn on the instrument and wait for the Tone test.
4. Enter "Common Setting" using the Setup/Tests Button.
5. Press the function key named "Install", and follow the instructions on the instrument display.
6. Wait for the instrument to return to the Tone test.
WARNING: The instrument will restart several times.
WARNING: Don't turn off the instrument while updating.

Installing MHA (Master Hearing Aid) wave files:

MHA/HIS wave files can be installed the following way:
1. Zip the selected wave files into a file named "update_mha.mywavefiles.bin" (make sure the file extension is
bin and not zip)
2. Copy the files to a newly FAT32 formated USB memory stick
3. Insert the stick into one of the USB connections on the AC40.
4. Go to Common Setup and press "Install"
5. Wait for the installation to complete.
6. Restart the AC40.

AC40 Stand Alone Unit, Print Logo Update

AC40 direct printout allows results to be printed directly after testing (via a supported USB printer – please contact
Interacoustics customer service for a list of supported PC printers if in doubt). The printout logo can be configured
via the audiometer itself (see below) or via the Diagnostic Suite (in the General Setup a logo impage can be
downloaded to the instrument from the PC).
1. Open up the "Paint" program
2. Open up "Image Properties", by pushing the Ctrl + E keys
3. Set the "Width" to 945 and the "Height" to 190 as shown. Click on "OK"
4. Edit the Image and the Company data to fit inside the set area
5. Save the created file as "PrintLogo.bmp"
6. Zip the "PrintLogo.bmp" file to the following name "update_user.logo.bin"
The "update_user.logo.bin" file is now ready to be used
7. Find a USB thumb drive with at least 32MB in total size and insert it into your PC
8. Go to My Computer and right click on the USB thumb drive and select 'Format' **Note-this will erase
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