Nikon Epiphot 300 Manual page 75

Inverted metallurgical mocroscope
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Symptoms
Film doesn't
advance.
Successive
double
exposure.
Film doesn't
advance.
Double
exposure.
(FX-35DX)
35 mm film
corners
vignetted.
(NFX-35)
Note: Also refer to "Troubleshooting on Photomicrography." (P. 55)
69
Causes
• Electrical contact
points dirty.
• Electrical contact
points dirty.
• DX cables not
connected.
• Film advance mode
switch not properly
set.
• Data mask in the dark
box partially intercepts
optical path.
Actions
• Clean the contact points of the dark box and its
attaching mount on the microscope with a clean, soft
cloth or a tissue paper lightly moistened with alcohol.
• Connect the DX cable from the microscope base to the
control box. Connect the other DX cable from the
microscope base to the dark box.
(P. 9, 10)
• Set the switch properly. (P. 10)
• Turn the data mask IN/OUT lever to
"OUT"

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