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10.
Troubleshooting
●
If any problems occur, check with the following table
before calling for repair.
10-1. Main unit
Phenomenon
Check point
Cause and action
The power lamp does not
light when Retinomax is
turned on.
The monitor screen does
not turn on.
Is Retinomax used for a long
period of time?
The battery pack is not
charged when purchased. It
may be fully discharged if
Retinomax is not used for a
long time. Charge the battery
pack.
The power switches off
automatically.
Has the main unit been left
inoperative for more than 3
minutes?
The power switches off
automatically if the instrument
is left inoperative for 3
minutes.
Is the remaining battery
charge sufficient?
When the remaining battery
charge is insufficient, the
power switches off
automatically
(See “4
-7-2 Battery Low
Indication”
)
Is the battery charging
contacts dirty?
Turn the power off, and clean
the pins both on the main unit
and the station sides.
The battery pack cannot
be installed in the main
unit.
Is the battery pack in the
correct orientation?
Check to make sure the battery
pack is correctly installed. (See
“3
-2-1 Installing and Removing
the Main Unit
Battery Pack”)
Refractive measurement
cannot be made.
Refractive
measurements vary
widely.
Is the measurement out of
range?
Is there foreign matter in
the pupil that obstructs
light?
Check in the retroillumination
mode.
(See “5
-6 Retro illumination
Mode”)
