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TROUBLE SHOOTING
TROUBLE SHOOTING
TROUBLE SHOOTING GUIDE
If there seems to be a malfunction, first check the cause by following the steps on the check list shown
below. If the problem cannot be resolved or the malfunction seems to be caused by something other
than the items listed below, contact TOPCON at the address on the back cover.
Problem
Example of possible causes
Measures
Reference
page
Nothing is displayed
on the monitor.
The power cord plug has come
out of the outlet.
Securely insert the plug into the
outlet.
The power cord has come out of
the instrument.
Attach the power cord to the
instrument.
The Power Save condition is
selected.
Reset the instrument to the
normal condition.
The fuse has blown out.
Replace the fuse with a new one.
The monitor is difficult
to view.
The screen adjustment is not
correct.
Adjust the monitor screen by
turning the brightness volume.
The photography
image is not clear.
The lens of the photography
window is dirty.
Clean the lens.
Photographing is
impossible in the
AUTO mode.
The MANUAL mode is selected.
Select the AUTO mode.
The lens of the photography
window is dirty.
Clean the lens.
The patient's eye condition is
poor.
Take a picture in the MANUAL
mode.
An error message
flickers on the screen.
The lamp house cover comes off.
Set the lamp house cover.
No image is
displayed.
The xenon lamp is dead.
Replace the xenon lamp with a
new one.
The instrument does
not move.
The locking knob is tightened.
Loosen
the
locking
knob
sufficiently.