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vu.
TROUBLE SHOOTING TABLE
Although
nowhere the user can find any disorder or derangement in the instrument,
if he
encounters some difficulty
or dissatisfaction, recheck the use, referring to the table below:
1. Optical
Failures
Causes
)
Actions
• Optical path in trinocular tube
l
Changing-over to the limit
not fully changed-over (Refer to P. 8)
• Centering nosepiece not in click-
l
Revolve it to click-stop position
stop position (Objective not
centered in optical path)
appearance
• Condenser not centered ) Centering by using field
diaphragm (Refer to P. 9)
osed
l
Open it properly
) Cleaning
iece, slide)
• Improper use of condenser
) Correct use (Refer to P. 10)
path
) Flip out (Refer to P. 12 & 18)
l
Swing out (Refer to P. 18)
e "AP")
• Top lens of condenser incorrectly
l
Swing in to the limit
• 1/4
A.
& tint plate, compensator
l
Correct setting
positioned
or dust in
• Dirt or dust on the lens
l
Cleaning
(Condenser, objective, eyepiece,
field lens)
• Dirt or dust on the slide
l
Cleaning
ser
Correct positioning
(Refer to P. 9)
• No coverglass attached to slide
l
Correct use (Refer to P. 12)
or NCG objective used with coverglass
ution or
• Too thick or thin coverglass
) Use specified thickness (0.17mm)
coverglass (Refer to P. 12)
dry
) Cleaning
40X)
• Dirt or dust on the lens (condenser,
l
Cleaning
• No immersion oil used on immersion-------
Use immersion oil
system objective
(Refer to P. 12)
l
Remove bubbles
used
l
Use Nikon immersion oil
l
Open properly (Refer to P. 11)
d
• Dirt or dust on the entrance lens
l
Cleaning
20
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