SL 20i
TROUBLESHOOTING TABLE
16
Chart of Common Errors
ISSUE
PROBABLE CAUSE
POSSIBLE SOLUTION
Lamp won’t turn on.
Incorrect input power supplied to
the SL 20i Slit Lamp.
Check the outlet to ensure proper power is
being supplied.
Defective Power Cord.
Replace the Power Cord.
Bulb may be blown out.
Replace Bulb.
Defective Power Supply.
Replace the Power Supply.
Slit Lamp won’t move. Base Lock Screw may be tightened.
Rough base
Movement.
Bearings may be damaged.
Replace the base bearing Assembly including
Shaft and Sleeve.
Replace the base bearing Assembly including
Shaft and Sleeve.
Shaft may be damaged.
Fixation light does not
light up.
Fixation Light Harness not plugged
into the Power Supply Assembly.
Ensure the Fixation Light Harness is properly
seated in the Power Supply Assembly.
Defective Power Supply.
Replace the Power Supply.
Light too dim.
Incorrect wattage for bulb being used.
Bulb not installed properly.
Check bulb and ensure notch lines up with
bulb housing.
Double slit visible in
microscope.
Microscope not focused on focusing
rod before use.
Install focusing rod and check to ensure
microscope is focused on it.
Bulb not installed properly.
Check bulb and ensure notch lines up with
bulb housing.
8126700-795
SL 20i
Issue 1.0
Printed on June,2019
Loosen the Base Lock Screw.
Replace with the proper Bulb.
The following is a checklist of items that need to be assessed in order to determine if the SL 20i Slit Lamp
requires servicing.
•
Check the outside of the Slit Lamp for any damage or missing components.
•
Inspect the power cord for damage.
•
Test the lamp by turning the lamp on and turning the light all the way to it’s brightest setting, and
all the way down to its lowest setting.
•
Check to ensure all switches are functioning properly.
•
Check the filters by cycling through all the options.
•
Check the Slit Wheel by cycling through all the options.
•
Check the base movement.
The following chart outlines some common issues with the SL 20i Slit Lamp and some steps you can
take to correct the issue. If problems persist, please contact the LABOMED as listed in the
Introduction
section of this manual.
