AmScope M620A Manuale d'uso - Pagina 17

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M620 Series

Common Issues (Continued)

Symptom

Cause

The color of the image is

The brightness adjustment knob is not in the right position

not accurate

No filter is used or filter is in use

The objective touches the

The cover slip is not standard sized

cover slip

The limit-stop is set too high or not engaged

Unable to move the slide

The slide is not secured correctly

smoothly

The mechanical stage is not properly secured

Focus knob does not turn

The tension knob is too tight

Stage declines by itself

The tension knob is too lose

The focusing knob won't

Limit-stop is engaged

raise the stage

The bulb/light source

The bulb is close to burning out

flickers

The microscope does not

The microscope is unplugged

light up

Remedy

OPTICAL ISSUES

Adjust the brightness knob to a higher or lower setting for color

clarity

Remove color filter if natural light is desired, or insert desired

filter

MECHANICAL ISSUES

Replace the cover slip with the appropriate 0.17mm thickness slip

Be careful to avoid contact between objective and the slide when

the limit stop is not engaged. To reengage, focus the sample, then

lock the limit stop into place to set max height at a safe but us-

able distance.

Adjust the slide to use the stage clips and secure the sample

Tighten the mechanical stage screws to better secure the stage

Loosen it by adjusting the tension ring inside the coarse focus

knob counterclockwise (close to the arm of the microscope on

the left of the microscope)

Tighten it by adjusting the tension ring inside the coarse focus

knob clockwise (close to the arm of the microscope on the left

of the microscope)

Disengage the limit stop on the rear of the stage of the micro-

scope

ELECTRICAL ISSUES

Please contact us in regards to this issue. LED lights do not burn

out, so there may be another electrical issue

Insert the plug into the wall socket to achieve electrical illumina-

tion

Troubleshooting