Failures
Causes
.
Actions
Image moves
• Specimen rises from stagesurface
• Place it stable
while being
• Revolving nosepiece not in c1ick-
, Revolve it to click-stop position
focused
stop position
• Condenser not correctly centered
• Correct centering (Refer to P.l0)
• Optical path in trinocular tube
, Changing-over to the limit
not fully changed-over
(Refer to P. 9)
Image tinged
• Daylight fi Iter not used
• Use daylight filter
yellow
2. Manipulation
Failures
Causes
.
Actions
No focused
• Upside down of slide
' Turn over the slide
image obtained
• Too thick coverglass
• Use specified thickness (O.17mm)
with high pow-
coverglass (Refer to P. 13)
er objectives
High power ob-
• Upside down of slide
• Turn over the slide
jective touches
• Too thick coverglass ' Use specified thickness (O.17mm)
the slide, when
coverglass (Refer to P. 13)
changed-over
• Eyepiece diopter not adjusted' Diopter adjustment
from low power
(Especially when changing-over
(Refer to P 9)
low power objective 1X or 2X)
Insufficient
• Eyepiece diopter not adjusted• Diopter adjustment
parfocality of
(Refer to P 9)
objective
(when changed-over)
Movement of
• Slide holder not tightly fixed
) Fix it tightly
image not
smooth by
moving the
slide
Travel of stage
• Improper attaching of slide
) Shift the attaching position
limited to one
holder
half length of
slide
No fusion of
• Interpupillary distance not
) Adjustment (Refer to P. 9)
binocular
adjusted
images
Fatigue of
• Incorrect diopter adjustment
) Correct adjustment(Refer to P.9)
observing eyes
• Inadequate brightness of illumination~ Change power voltage
22
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