Troubleshooting; Chart Of Common Errors - Labomed SL 20i User Manual

TROUBLESHOOTING TABLE
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.

Chart of Common Errors

ISSUE
Lamp won't turn on.
Slit Lamp won't move.
Rough base
Movement.
Fixation light does not
light up.
Light too dim.
Double slit visible in
microscope.
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.
8126700-795
PROBABLE CAUSE
Incorrect input power supplied to
the SL 20i Slit Lamp.
Defective Power Cord.
Bulb may be blown out.
Defective Power Supply.
Base Lock Screw may be tightened.
Bearings may be damaged.
Shaft may be damaged.
Fixation Light Harness not plugged
into the Power Supply Assembly.
Defective Power Supply.
Incorrect wattage for bulb being used.
Bulb not installed properly.
Microscope not focused on focusing
rod before use.
Bulb not installed properly.
SL 20i
POSSIBLE SOLUTION
Check the outlet to ensure proper power is
being supplied.
Replace the Power Cord.
Replace Bulb.
Replace the Power Supply.
Loosen the Base Lock Screw.
Replace the base bearing Assembly including
Shaft and Sleeve.
Replace the base bearing Assembly including
Shaft and Sleeve.
Ensure the Fixation Light Harness is properly
seated in the Power Supply Assembly.
Replace the Power Supply.
Replace with the proper Bulb.
Check bulb and ensure notch lines up with
bulb housing.
Install focusing rod and check to ensure
microscope is focused on it.
Check bulb and ensure notch lines up with
bulb housing.
Issue 1.0
Printed on June,2019
SL 20i
16