Kowa VX-10a, Instruction Manual, Page: 45 / 64

6. Troubleshooting
T
roubleshooting
6
P6-2
Irregularity Check item Remedy
LCD monitor does not
operate.
Mydriatic color or mydriatic fluorescein
mode selected.
Switch to non-mydriatic mode.
Is External video input selected by
Monitor select button?
Turn off External video input.
The field angle knob wrongly
positioned and fixed. Align the field angle knob with a position
of 50°.
Observation lamp OFF. Make sure the observation lamp is ON.
Nothing seen when looking
into viewfinder.
Non-mydriatic mode selected. Switch to mydriatic or fluorescein mode.
LCD monitoring mode selected. Cancel the LCD monitoring mode.
The field angle knob wrongly positioned
and fixed. Align the field angle knob with a position
of 50°.
Luminous lines for focusing
detection/luminous spots
for aligning the position de-
tection does not appear.
Fundus camera wrongly set.
Properly adjust the fundus camera’s
alignment.
Off selected on F.D. switch/W.D. switch. Turn the switch ON.
Is Anterior segment button on?
Turn off Anterior segment button.
When Anterior segment button is on, de-
tecting luminous dots turn off.
Diopter lens inserted.
Remove diopter lens.
When the dioptic lens is inserted, detect-
ing luminous dots turn off.
External fixation light does
not come ON.
Fixation lamp for photographing
posterior pole or optic disk selected.
Select the external fixation lamp.
Improperly fixed.
Fasten by hand the external fixation
lamp at its bottom.
Jack pulled off from the chin rest’s bot-
tom.
Fully insert the jack.
Timer’s counting does not
sound. OFF selected in initial setting of “timer’s
counting sound in operation.” Set it to ON.
See “5-3 Changing initial settings.”
Buzzing does not stop.
Optional green filter inserted in fluores-
cein mode.
In case of fluorescein photography, re-
move the green filter.
In case of red-free photography, select
the mydriatic color mode.
Err 1 appearing on panel’s
indicator. Power switch was repeatedly turned
ON/OFF.
After turning OFF the power, wait for ten
seconds before turning it ON again. If “Err
1” should still appear, stop the equip-
ment and contact your Kowa dealer
where you purchased it.
Err 2 indicated on panel's
indicator Power switch was repeatedly turned
ON/OFF.
After turning OFF the power, wait for ten
seconds before turning it ON again. If
Err 2 should still appear, stop the equip-
ment and contact your Kowa dealer
where you purchased it.