Nikon Eclipse Ti Series - Chapter 5 Troubleshooting Tables; Viewfield vignetting; Contrast not obtained when using the DIC method; Poor viewing or contrast

NF,:
Troubleshooting
Tablek
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vJ"'"ipliiàié
ànv
or
tn"
rorro*ing'piour'"..,
check
the
folowing
rabte
for
possible causes
before
requesting
service.
|f
the
prob|em
is
nol
|isted
below,
or if the
problem
cannot
be
resolved
by the
suggested
countermeasure,
unplug
the
power
cord
and
conlact
Nikon'
Viewfield
vignetting
Contrast
not obtained
when
using
the
DIC
method
Poor
viewing
or contrast
Rotate
to
clickstop
Position'
Botatg
to clickstop
Position.
Move
the
prism completely
into
the
optical
oath.
Set
to clickstop
Position.
Install
the
revolving
nosepiece
on the
groove.
Inserî
the
polarizèr
into ihe
optical
Path.
lnsert
ths
analyz6r
inio the
optical
path'
Sèlsct
a condenser
cassette
suitéd
to the
condsnser
lens being
used.
Sslect
a
condgnser
cassette
suited
to the
objgctive's
indication
Move
the
prism
complgtely
into lhe
oplical
path.
Use a Drism
suited
to
the objective.
Datermine
the crossed
Nichols
(dark cross)
position again.
Select
a condenser
cassette
suited
to
the
condenser
lens being
used.
Select
a
condsnser
cassette
suited
to lhe
obj€clive's
indication.
Use
a
prism
suited
to the
objscliv6.
Gently
wiPe
away
tho
dirt.
(Becau6e
this is
a mlarized
intelgrence
microscop€'
dirt
Doses
more
of a
problem
lhan
usual.)
While
observing
the
odt
Pupil
ol the
obiective
through
the
Bertrand
lens'
turn
ths
revolving
nosepièce
slightly.
ll the bubble
movgs
with
the
nosepiEce,
the
bubble
is
on the
obisclive
side.
ll the
bubble
remains
stationary
the
bubble
is
on the
condenser
side.
WiDe
the
immersion
oil
ffom
the
lens and
then
apply
it again'
.
lf vou
encoqntgf
a
problem
other lhan
thos€
disclss9d
above,
or if lhe
action
recommended
in ihe
labls
above
lails
to conèct
t,ìe
póblem, refsr
io th€
mìcroscope
instruction
manual'
Optical
path
s\ritchover
dial
not in clickstop
oosiîion.
The
condenser
turrsl
is
in an
intermediate
Dosition.
The objective
DIC
Prism
is
in an
intermediate
Position.
The
analyzer
is in an
intermediate
Position'
Tha rgvolving
nosepiece
is
not installed
properly.
The
polarizer
is not in
the optical
Path.
The analyzer
is not in
the
optical
Path
Wrong
condensar
cassette
is s€lected.
The
objeetive
DIC
prism is not
in th€ optical
oath.
Wrong
combination
of
objeclive
and
obisctive
DIC
Prism.
Wrong
condenaer
direction.
Wrong
condenser
cassene
is selectgd.
Wrong
combination
of
obiectiw
and
obiective
DIC
prism.
There
is
dirt on
the objective,
condenser,
or
soeclmen,
Air bubble
in the
immersion
oil
on the
lens'
17