Troubleshooting
Humphrey Field Analyzer II-
i
series User Manual 2660021145640 A
M-2
Troubleshooting Table
Not all potential situations are listed in Table M.1, nor are all of the possible solutions. However, it
can be a useful resource for figuring out the cause(s) for many
commonly encountered issues.
Table M.1 Troubleshooting Table
Problem Possible Cause or Solution
Startup Difficulties
HFA II-
i
will not turn on • Check power cord connections to HFA II-
i
, power table and wall outlet (1- 24).
• Check power switch on power table (1- 31 ).
• Check fuse in HFA II-
i
(near power switch) and power table (15-6, 15-7).
HFA II-
i
turns on but Main Menu screen never
appears
• If black screen is present and patient response button drawing is visible, press
patient response button to verify error code - write down the error code - then turn
HFA II-
i
off then on again - if this continues, call Customer Service and mention the
error code.
• If this happens after installation of new software: Turn off HFA II-
i
, re-install
software starting with disk #1 in floppy drive - turn power on to HFA II-
i
and follow
directions.
• Check brightness knob on right side of touch screen (1- 2 3 ).
• Check to see if patient response button is being pr
essed down in holder.
Calibration screen displayed at start-up • Patient response button stuck in down position (15-11).
- follow directions on screen or recycle power
- lift patient response button out of holder; replace in proper position.
Touch Screen
Too dark or too light • Adjust brightness - knob is to right of touch screen on rear of unit (1-23)
Wrong button activated when pressed • Make sure finger is perpendicular to the touch screen (2-4)
• Try using pencil eraser to make selection
• Perform touch screen calibration (15-11)
Slow response or no response • Touch and remove finger from touch screen in a quicker motion (2-4)
(Remember: button activates w
hen finger is released.)
Out of calibration at start up • Perform touch screen calibration (15-11)
• Hold patient response button down at start up to reach touch screen
calibration procedure (15-11)
Patient Response Button
Does not beep when pressed • Turn Switch Beep on - Additional Setup menu (2-30)
• Check patient response button connection to HFA II-
i
(1- 2 3 )
• Verify patient is properly pressing and
releasing response button (3-24)
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