background image

Troubleshooting 

 

IMAGE QUALITY 

 

PROBLEM CAUSE 

SOLUTION 

No image. 

Nosepiece not positioned properly. 
Image too bright. 

Turn until clicks into place.  
Reduce the intensity of the light. 

Poor resolution. 

Dirty objective. 
Dirty eyepiece. 
Slide upside down. 
 
Wrong cover slip used with slide.  
Light too bright. 
 
Dirty condenser. 

Clean objective. 
Clean eyepiece. 
Replace the slide with the cover slip 
facing upwards. 
Use 0.17mm thick cover slips. 
Reduce light intensity or adjust the 
diaphragm aperture. 
Clean condenser. 

Spots in field of view 

Dirty eyepiece. 
Dirty slide. 
Dirty condenser. 

Clean eyepiece. 
Clean preparation. 
Clean condenser. 

Uneven illumination of field. Nosepiece not positioned properly. 

Diaphragm aperture not sufficiently 
open. 

Turn until clicks into place. 
Adjust appropriately. 

 
MECHANICAL 
 

PROBLEM CAUSE 

SOLUTION 

Does not stay in focus. 

The head is sliding down on its own.  

Adjust the tension of the coarse focus 
knob.  

Does not focus.  

The stopper on the ascending 
movement of the stage needs 
adjusting. 

Readjust the stopper. 

 
 
Moving the microscope 

 

  Avoid moving the microscope if possible.  

 

  Carry the microscope in both hands, with one hand holding the arm (12), and the other supporting the 

base (14).  

 

  Keep the microscope in an upright position. 

 
Repairs 

 
If the microscope needs repairing, or revision by authorised personnel, we would recommend that it be 
stored in its polystyrene box and returned to the distributor. Attach a note with a description of the problem, 
or details of the required revision.  
 

Warrantee 

 
All MOTIC microscopes are warranted against any manufacturing defect for a 5 year period. Damage 
occurring by any unauthorised repair work, or occurring through misuse or modification of the microscope will 
not be included under the conditions of the warrantee. Bulbs and fuses are not under warrantee.  
 
The warrantee service is provided by MOTIC, or its authorised distributors. Defective products will be 
repaired without charge when returned to MOTIC, or one of its distributors. Transport costs will be covered 
by the purchaser. 
 

OWING TO POSSIBLE MODIFICATIONS AND IMPROVEMENTS IN THEIR MANUFACTURE, CHANGES 
MAY OCCUR TO MICROSCOPES WITHOUT PRIOR NOTICE.  
 

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