7
B. To replace bottom bulb .... gently lay microscope on side. Remove cover plate located on bottom of base
by removing four Phillips screws adjacent to corners and one Phillips screw at front of plate. Do not
remove Phillips screw at center of plate. Slowly swing plate aside, making sure your don’t yank loose
the wire attaching plate to the base. Gently grasping bulb with a cloth, depress bulb in socket and then
turn counter-clockwise to release bulb. Gently grasp new bulb, using a cloth, depress into socket and
turn clockwise. Carefully replace base plate and resecure with Phillips screws.
C. To replace fuse…locate the fuse at the right rear side of microscope base. To remove from holder,
insert a 6mm screwdriver blade into slot located in rear of fuse holder cap. Slightly depress and rotate
screwdriver ¼ turn in direction of arrow, release pressure on screwdriver to release the fuse. Pull cap
and fuse out of fuse holder. Insert proper fuse into fuse cap. Insert fuse cap into fuse holder. Using
screwdriver, rotate fuse cap assembly in opposite direction of arrow until guide slot engages, depress
fuse cap and rotate ¼ turn to lock fuse into fuse holder.
TROUBLESHOOTING
PROBLEM
REASON FOR PROBLEM
SOLUTION
Light fails to operate.
Outlet inoperative.
Have qualified service technician
repair outlet.
AC power cord not connected.
Plug into outlet.
Lamp burned out.
Replace lamp.
Fuse blown.
Replace fuse.
Image does not remain in focus
Head of microscope drops from
its own weight.
Adjust tension control.
Poor resolution
(image not sharp)
Clear glass objective lens
protector dirty
Clean glass protector.
Eyepiece lens dirty.
Clean eyepiece lenses.
Spots in field of view.
Eyepiece lens dirty.
Clean eyepiece lenses. ***
***Spots in field of view can also result from dirt on inside of eyepiece. It is recommended that you have
service technician clean inside of lens.
OPTIONAL ACCESSORIES AND PARTS:
#605-400
WF5X Eyepieces, paired
#615-400
WF15X Eyepieces, paired
#620-400
WF20X Eyepieces, paired
#800-101
117v 15 watt replacement bulb
(bottom light for 117v version)
#800-411
12v 10 watt replacement bulb
(top light for 117v version & top/bottom light for 220v version)
#800-907
12 watt fluorescent bulb for #907
#801-050
Fuse for 220v version, 0.5 amp
#801-100
Fuse for 117v version, 1.0 amp
#907
Fluorescent add-on ring light (requires ring light adaptor #931-409)
#931-409
Ring light adaptor, O.D. 54.5mm
(permits mounting of auxiliary ring light on objective pod)
#940-410
Frosted glass stage plate, 80mm
#941-410
Black/white plastic contrast plate, 80mm
#965-400-05
Eyepiece reticle, 5mm/100 divisions, O.D. 22.8 mm
#965-400-10
Eyepiece reticle, 10mm/100 divisions, O.D. 22.8 mm
#975-001
Carrying case, anodized aluminum, fabric lining, accessory pockets, Velcro straps, keyed lock.
Note: Only “TBL” models fit this case. No case is available for “1105/1107” models.
