Zeiss humphrey HFA II-i series, Field Service Manual

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FA2i-023 Page 3
Repair of Corrupted Calibration Data disk
1. Boot up instrument
2. Insert Calibration Backup Disk into the instrument floppy drive.
3. From the HFA2i instrument
Diagnostic menu select SAVE to save Calibration Data onto the
original Calibration Backup Disk.
4. Take out the disk and follow instructions 2-14 of the Verification of Calibration Backup Disk
procedure above.
5. Initial and date the disk label.
6. Return the Calibration Backup Data disk to the holder in the cable compartment of the instrument.
7. Turn off instrument and reboot.
8. Verify the configuration settings are correct.
Manufacturing Verification of Calibration Backup Disk File Implementation
Instruments that have been manufactured with the new Calibration Backup Disk verification process start
with the following serial numbers:
720i-5838 740i-11446 745i-4559 750i-9393
Correction of Writing Corrupted Backup Data Disks
The next HFA2i software release will have provisions that will reduce or eliminate the possibility of writing
corrupted data to the Calibration Backup disk. This bulletin will be revised at that time.