LED REPLACEMENT
To prolong the life of the bulb you should always turn off the unit when not in use. The
replacement LED part number can be found underneath the microscope on the metal base
plate. The SILVER150 Series models use a 70mW LED.
To replace the LED, you must first turn the power off and unplug the microscope’s electrical
cord from the electrical socket and remove any slides on the stage. Use the small allen
wrench (0,9mm) that was included with the microscope to loosen (Loosen, but do not
completely remove the screws to prevent loss) the set screws that hold the illuminator
housing onto the base of the microscope. Remove the illuminator housing to expose the LED.
Simply pull the LED straight up to remove it from the light socket. Align the 2 metal socket
pins with the holes at the bottom of the new LED and push the LED onto the socket. Re-in-
stall the illuminator housing.
CA
UTION
PROBLEM
CORRECTION
No Illumination
Is the power plug connected to an active A.C. outlet?
Is the on/off power switch working properly?
Illumination “hot spots” and uneven
brightness in the field of view
Is the Abbe condenser in the correct position?
Dust or hairs seem to be moving
in the image
The iris diaphragm is not open wide enough. Slowly open the diaphragm to increase the size of the opening
allowing for additional illumination.
Once the specimen is in focus,
it moves out of focus
Gravity is causing the stage to drift downward, causing loss of focus. The focusing tension should be increased to
act as a brake to prevent this downward drift. The SILVER150 Series is outfitted with a tension collar on the coarse
focusing shaft to allow tension on the slip-clutch system to be increased or decreased.
Is the nosepiece and objective clicked into proper position?
Image appears “washed out”
or weak
Slightly close the diaphragm to a smaller aperture.
Objective lens is dirty.
See “Care and Cleaning” Section.
Eyepiece is dirty.
See “Care and Cleaning” Section.
Turn the light intensity control to a brighter setting
Check the bulb. Try a new bulb if you have one.
SILVER
250
SERIES
| 13
MICROSCOPE COMPONENTS
COMMON PROBLEMS IN MICROSCOPY
CA
UTION
NEVER DISASSEMBLE MECHANICAL OR OPTICAL COMPONENTS. THIS SERVICING SHOULD ONLY BE DONE BY AN
AUTHORIZED MOTIC TECHNICIAN. THE WARRANTY WILL BE NULL AND VOID IF THE MECHANICAL OR OPTICAL COM-
PONENTS ARE DISASSEMBLED BY A NON-MOTIC DEALER.
SILVER
LINE
