Sony CCD-TR78 Operation Manual (primary manual) Operation Manual page 40

Maintenance Information and Precautions
Removing Dust from inside the Viewfinder
— CCD-TR78/TR88 only
(1) Remove the screw with a screwdriver (not supplied). Then, while sliding the RELEASE knob,
turn the eyecup in the direction of the arrow and pull it out.
(2) Clean the surface with a commercially available blower.
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To Reattach the Eyecup
(1) Align the groove on th eyecup with the • mark on the barrel.
(2) Turn the eyecup in the direction of the arrow. Then, replace the screw.
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Caution
Do not remove any other screws. You may remove only the screw to remove the eyecup.
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CCD-TR78/TR88/TR98 3-810-917-13.E