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TROUBLESHOOTING TABLE
Problem
No Illumination at all
Insufficient
Illumination
Inoperative surgical
field illumination
6165000-795
Possible Cause
Power cable not plugged
Power switch not pressed
Defective instruments fuse
Defective power cable
Line power failure
Failure of suspension
system electronics
Light guide not properly
inserted in arm or
microscope.
Brightness level set too
low
Light guide not properly
inserted in arm or
microscope.
Defective light guide
(illumination not uniform)
Light guide not properly
inserted in microscope arm
Failure of electronics
Switch off via microswitch on
suspension system
PRIMA GN
Remedy
Plug in power cable.
Press power switch
Change instrument fuse
Change power cable
Contact in-house Technician
Contact service dept.
Insert light guide properly to get
maximum illumination.
Adjust brightness using the
brightness control knob.
Insert light guide properly to get
maximum illumination
Change light guide.
Insert light guide as far as it will
go
Illumination surgical field using
alternate illuminator and contact
service dept.
Move suspension arm of
suspension system into working
position
Printed on March, 2016
Prima GN
25
Issue 1.4
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