In case there is any trouble, please check according to the following table for reference. If it still cannot
work, please contact the repair department of an authorized distributor.
T
ROUBLE
P
OSSIBLE
CAUSE
R
EMEDY
No illumination
The cable isn't connected correctly
with the power socket
Connect the power cable correctly
The main power switch is on "O"
position
Place the switch on "I" position
The plug on the power box is loosen
Insert the plug firmly
The plug on the lamp cap is loosen
The bulb has burnt out
Change the bulb
The fuse has blown
Change the fuse
The bulb is not assembled properly
Assemble the bulb properly
The filter lever is in the middle
position or in the position of gray filter
Set the filter lever to the correct
position
The brightness adjustment knob is at
minimum
Set the brightness adjustment
knob
Slit is too dark
Voltage selector is wrongly set
Set the voltage selector correctly
The coat of the reflecting mirror is
oxidized
Change the reflecting mirror
Too much dust on the reflecting
surface
Clean the surface with the brush
Fuse has blown
Voltage selector is wrongly set
Set the voltage selector properly
The fuse doesn't comply with the
specification
Replace it with a suitable fuse
Slit width closes automatically
The slit width control knob is too loose
Adjust the tightness of the control
knob
Fixation bulb is off
The output plug is loose
Insert the output plug firmly
SL300L / SL400L - Slit lamp microscope > V2 - 03-2018
42
U
SER
MANUAL
> VIII. T
ROUBLESHOOTING
GUIDE
Summary of Contents for SL 300
Page 1: ...www essilor instruments com User manual...
Page 4: ...I INTRODUCTION...
Page 8: ...II SAFETY AND PRECAUTIONS...
Page 13: ...III NOMENCLATURE...
Page 16: ...IV ASSEMBLY...
Page 24: ...V OPERATION PROCEDURES...
Page 30: ...VI CLEANING...
Page 33: ...VII MAINTENANCE...
Page 36: ...VIII TROUBLESHOOTING GUIDE...
Page 38: ...IX APPENDIX...