Zeiss Humphrey II-i series - Page 564

Troubleshooting
Humphrey Field Analyzer II- i series User Manual 2660021145640 A
M-6
Blind spot monitor reports many fixation losses • Size V blind spot check size may be too easy to see at blind spot (9-9).
- Consider using Gaze Track only and turn off Blind Spot.
Blue stimulus is on but bowl is not yellow • Blue stimulus color was chosen instead of Blue-
Yellow parameter (4-9).
- Blue Yellow parameter set to ON will give yellow bowl and Blue Size V stimulus.
Illumination from yellow lamp at top of bowl
a
nnoying to patient
.• Blue-Yellow visor not extended during testing procedure (9-5).
Testing Problems
Test completes immediately after START button
is pressed
• SIMULATION set to ON (2-30).
- Go to Additional Setup screen, set SIMULATION to OFF.
• Instrument motorboard was out of calibr
ation and PROCEED was selected.
Full field test stops before complete • Trial lens holder in up position for peripheral portion of test.
- test peripheral field without a trial lens and put holder down (3-6).
Hard Disk Problems
Message indicates hard disk failure • Refer to “How to Handle Hard Disk Failures” for step-by-step instructions (11-10).
Patient names exist in d
atabase without test
data
• Test results not saved with patient information.
- Use CLEANUP HARD DISK DATABASE feature to remove (11-23).
USB Media Problems
Message indicates “Unrecognized format” error,
USB device does not show up on the HFA, or a
USB media error is indicated.
• The USB storage device is incorrectly forma
tted. Format the USB storage device in
FAT (FAT16) or FAT32. NTFS or exFAT (FAT64) cannot be used.
• The USB device may be incompatible with the HFA.
Floppy Disk Problems
Floppy disk cannot be used by HFA II- i • Disk may not be properly formatted (10-17).
- Use INITIALIZE DISK feature (all pr
evious data will be erased).
• Disk may be the wrong format (10-17).
- Make sure you use only pre-formatted Hig
h Density (HD) 1.44 MB floppy disks.
- Do not use Super High Density (2.88 MB) disks.
Floppy disk error is indicated • Disk may be damaged or corrupted (15-12).
- Use REBUILD REMOVABLE ME
DIA DATABASE feature (11-21).
Data Transfer Problems
Transfer of files between HFA I, HFA II and HFA II
-
i series via serial cable does not work
• Check cable attachments (10-19).
• RS-232 port settings are incorrect (10-22, 10-23, 10-23, HFA I Manual).
Tests missing after data transfer • Tests were ineligible to be transferred (10-19).
Table M.1 Troubleshooting Table
Problem Possible Cause or Solution