Trouble Shooting Table - Nikon OPTIPHOT-POL Instructions Manual

VII.
TROUBLE SHOOTING TABLE
Although nowhere you can find any disorder or derangement in the instrument, if you
encounter some difficulty or dissatisfaction, recheck the use, referring to the table below:
1. Optical
Failures Causes
,
Actions
• Optical path in trinocular tube
' Changing-over to the limit
not fully changed-over (Refer to P. 9)
• Centering nosepiece not in click-
)
Revolve it to click-stop position
stop position (Objective not
centered in optical path)
ppearance
• Lamp bulb not centered ) Centering (Refer to P. 8) • Condenser not centered ) Centering by using field
diaphragm (Refer to P. 10)
osed
' Open it properly
Cleaning
ce, slide) • Improper use of condenser
' Correct use (Refer to P. 11)
ectly
) Correct positioning (Refer to P. 8)
ctly
) Correct attaching (Referto P. 6)
• Bertrand lens in the optical path
)
Flip out (Refer to P. 13 & 19)
) Swing out (Refer to P. 19)
e "AP") • Top lens of condenser incorrectly
, Swing in to the limit
• 1/4
A
& tint plate, compensator or
' Correct setting
ositioned
or dust in
• Dirt or dust on the lens ) Cleaning
(Condenser, objective, eyepiece, field lens)
• Dirt or dust on the slide
) Cleaning
ser
) Correct positioning
(Refer to P. 10)
• No coverglass attached to slide
) Correct use (Refer to P. 13)
or NCG objective used with coverglass
tion or
• Too thick or thin coverglass
)
Use specified thickness (0.17mm)
coverglass (Refer to P. 13)
dry
) Cleaning
40x)
• Dirt or dust on the lens (condenser,---> Cleaning
objective, eyepiece, slide)
• No immersion oil used on immersion----+ Use immersion oil
system objective
(Refer to P. 13)
) Remove bubbles
used
) Use Nikon immersion oil