23
BX61
Problem
Cause Remedy Page
Correction collar on correction collar
equipped objective is not properly ad-
justed.
e) Visibility is poor.
· Image is not sharp.
· Contrast is poor.
· Details are indistinct.
· Image glares.
While focusing, turn the correction col-
lar to find the best position.
21
Front lens of objective is dirty. Clean objective. 3
Immersion oil is not being used with an
oil immersion objective.
Use immersion oil.
21
Immersion oil contains bubbles. Remove the bubbles. 21
Recommended immersion oil is not
used.
Use the provided immersion oil.
21
Dirt/dust on specimen. Clean it.
3
Dirt/dust on condenser
Inappropriate object side or cover glass
thickness.
Replace with glass of recommended
thickness.
13
f ) One side of image is blurred. Revolving nosepiece is not correctly
mounted.
Push slide dovetail all the way until it
is stopped.
–
Stage is not correctly mounted. Re-attach it. 15
Objective is not correctly engaged in light
path.
Make sure that revolving nosepiece
clicks into place correctly.
–
Specimen is not correctly mounted on
stage.
Place specimen correctly on to of
stage and secure it with slide holder.
13
g) Image appears to waver. Revolving nosepiece is not corrected
mounted.
Push slide dovetail all the way until it
is stopped.
–
Objective is not correctly engaged in
light path.
Make sure that revolving nosepiece
clicks into place correctly.
–
Condenser is not properly centered. Center the condenser. 19
h) Field of view becomes only slightly
brighter when the voltage is raised.
Condenser is not properly centered. Center the condenser. 19
Condenser is lowered too far. Adjust the condenser height position. 19
2. Electrical System
a) Bulb intermittently lights and goes
out.
Bulb is nearly burned out. Replace bulb. 31
A connector is not properly connected.
Check all connectors.
–
b) Bulb burns out almost immediately. Wrong type of bulb is being used. Use correct bulb type. 31
c) All voltage indicator LEDs light and
voltage cannot be varied by press-
ing light intensity adjustment but-
ton.
Bulb is not installed. Install bulb. 31
Bulb is burned out. Replace bulb. 31
Lamp housing is not connected. Connect lamp housing correctly. –
d) Brightness does not change when
you press light intensity adjustment
button.
Bulb is burned out. Replace bulb.
31
3. Focusing Block
a) Image cannot be focused. When adjusting stage height, you forgot
to reattach upper stopper screw.
Re-attach upper stopper screw.
15
b) Stage rises too high and destroys
specimen.
Substage is not installed properly. Re-attach substage.
11
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