Operational; Electrical - Nikon ECLIPSE 50i Instructions Manual

Problem
Field of view is too dark.

Operational

6.2
Problem
Image is not in focus
although the objective is
raised to the highest
position.
Images in left and right
eyepieces are not
coincident.
Eyes are fatigued.

Electrical

6.3
Problem
There is no power even
though the power switch
is on.
Lamp does not light.
Lamp burns out quickly.
Power does not turn on,
even though the
cytodiagnostic unit (if
used) power switch is
on.
Magnification of the
cytodiagnostic unit (if
used) does not change
even if the hand switch
is depressed.
Illumination brightness
is unaltered even if
magnification is changed
(when cytodiagnostic
unit is attached to the
55i).
Chapter 6 Troubleshooting
6.2 Operational
Possible causes
Condenser aperture diaphragm is
stopped down too far.
Field diaphragm image is not focused
on the specimen surface.
Optical path switching lever is not set
to the 100% eyepiece.
Possible causes
Stage is attached incorrectly.
Interpupillary adjustment has not
been performed.
Diopter adjustment has not been
performed.
Brightness is inadequate.
Possible causes
Power cord is not connected, or is
connected improperly.
Lamp has burned out.
Lamp type is incorrect.
Cables are not connected, or are
connected improperly.
The 55i (if used) power switch is not
set to on.
Hand switch cable or signal cable
(55i) is not connected, or is
connected improperly.
Signal cable is not connected, or is
connected improperly.
Brightness control knob is set to
maximum.
Preset switch is depressed.
75
Remedy
This should normally be set to 70 to 80%
of the objective N.A.
Focus and center the condenser.
Switch to the 100% eyepiece.
Remedy
Attach it correctly.
Make adjustments.
Make adjustments.
Use the brightness control knob or ND
filters to adjust brightness.
Remedy
Connect it properly.
Replace the lamp with a specified one.
Replace the lamp with a specified one.
Connect cables properly, and push them in
as far as possible (see p. 60).
Turn on the 55i power switch (press "|").
Connect the cable properly and push it in
as far as possible (see p. 60).
Connect the signal cable properly and push
it in as far as possible (see p. 60).
Set the brightness control knob to a level
below maximum.
Press the preset switch so that the switch
comes out.
6