89
BEFORE REQUESTING SERVICE
Color video monitor is
not clear.
• Image contrast is not good. Adjust contrast (contrast control). 97
• Image is dark. Adjust brightness (brightness control). 97
Adjust light intensity (Illumination Level
switch).
75
Darken room and thoroughly dilate
patient's pupil.
78
• Image color is abnormal. Adjust hue (hue control). 97
Periphery of captured
image is dark.
• Alignment is incorrect. Adjust alignment. 77
• Focusing is incorrect. Adjust focus. 80
• Patient’s pupil is not large enough. Darken room and thoroughly dilate
patient's pupil.
78
Captured image is
flared all over. (The
whole is covered by
light.)
• Alignment is incorrect. Adjust alignment. 77
• Focusing is incorrect. Adjust focus. 80
• Opacity in patient's eye. Flare cannot be removed.
----
Captured image is
whitened.
• Patient winked the moment the
photograph was taken.
Take another picture.
----
Captured image has a
dim white spot.
• Objective lens is stained. Clean lens. 98
• Eyelashes were in the patient's eye the
moment the photograph was taken.
(Dim light was seen at screen bottom
the moment the alignment was done.)
Let patient open eye wider and take the
picture again. If not wide enough, open
the eyelid (i.e., Take picture holding
eyelid open).
81
Photographic image is
dark all over.
• Flash level is insufficient. Adjust flash level (Flash level switch). 75
• Xenon set screws are loose. Refasten screws to terminal for the
xenon PCB.
94
• Xenon lamp has served its life. Change xenon lamp. 94
Illumination lamp does
not turn on.
• Power save function is on (flickering
power lamp).
Press Photography switch and cancel
power save function.
41
• Lamp terminal is loose. Refasten lamp terminal. 93
• Fuse is burnt. Change fuse. 96
• The lamp is burnt. Change lamp. 93
Internal fixation target
cannot be seen.
• Alignment is incorrect. Adjust alignment. 77
• Fuse is burnt. Change fuse. 96
• Internal fixation target is set to the
nose/ear side.
Press the fixation target selector switch
to move it to the center.
74
( ) scale is off monitor
center.
• Internal fixation target is set to
periphery.
Change fixation position to center
(Periphery fixation switch (Reset)).
74
Split lines cannot be
seen.
• Split line is set to OFF. Turn split line ON (Split switch). 56
• Diopter compensation lens selector is
not set to (0).
Return diopter compensation lens
selector to (0).
76
• Patient's pupil is not large enough. Darken room and thoroughly dilate
patient's eye.
78
Xenon lamp does not
turn on.
• Power save function is on (flickering
power lamp).
Press Photography switch and cancel
power save function.
41
• Xenon lamp has served its life. Change xenon lamp. 94
Cannot get patient's
pupil center.
• Patient's face position is incorrect.
(The chin and forehead are not
correctly on the rests, or the patient
faces sideways.)
Have patient keep their position
correctly.
73
• Patient's face height is incorrect. Adjust face height (Chinrest handle). 73
Nothing is recorded in
external recording
device.
• Anomaly in external recording device. Check power supply, settings, etc. ----
• Cable connections are incorrect. Check and correct cable connections.
24
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