Olympus BX51 Manuale di istruzioni - Pagina 26

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Problem

e) Visibility is poor.

· Image is not poor.

· Contrast is poor.

· Details are indistinct.

· Image glares.

f ) One side of image is blurred.

g) Image appears to waver.

h) Field of view becomes only slightly

brighter when the voltage is raised.

2. Electrical System

a) Bulb intermittently lights and goes

out.

b) Bulb burns out almost immediately. Wrong type of bulb is being used.

c) Brightness does not change when

you turn light intensity adjustment

knob.

d) All voltage indicator LEDs light and

voltage cannot be varied with light

intensity adjustment knob.

e) Lamp voltage cannot be varied

with light intensity adjustment

knob.

3. Coarse/Fine Adjustment

a) Coarse adjustment knob is hard

to turn.

b) Stage drifts down by itself or focus

is lost during observation.

Cause

Immersion oil contains bubbles.

Recommended immersion oil is not

used.

Dirt/dust on specimen.

Dirt/dust on condenser.

Inappropriate object side or cover glass

thickness.

Objective is not correctly engaged in light

path.

Revolving nosepiece is not correctly

mounted.

Stage is not correctly mounted.

Specimen is not correctly mounted on

stage.

Revolving nosepiece is not corrected

mounted.

Objective is not correctly engaged in

light path.

Condenser is not properly centered.

Condenser is lowered too far.

Bulb is nearly burned out.

A connector is not properly connected.

Light intensity preset button is set to ON. Press button to OFF.

Bulb is not installed.

Bulb is burned out.

Lamp socket is not connected.

Bulb is burned out.

Tension adjustment ring is tightened ex-

cessively.

You are trying to raise stage without

coarse adjustment knob while pre-focus-

ing lever is kept locked.

Tension adjustment ring is too loose.

Remedy

Remove the bubbles.

Use the provided immersion oil.

Clean it.

Replace with glass of recommended

thickness.

Make sure that revolving nosepiece

clicks into place correctly.

Push slide dovetail all the way until it

is stopped.

Re-attach it.

Place specimen correctly on top of

stage and secure it with slide holder.

Push slide dovetail all the way until it

is stopped.

Make sure that revolving nosepiece

clicks into place correctly.

Center the condenser.

Adjust the condenser height position.

Replace bulb.

Check all connectors.

Use correct bulb type.

Install bulb.

Replace bulb.

Connect lamp socket correctly.

Replace bulb.

Loose ring.

Unlock pre-focusing lever.

Tighten ring.

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