FP 75 E
Issue: 08/2012
38
5 .2
Threading for Projection Operation
For 35 mm film with sound
Take-off friction
Feed sprocket
Bottom sprocket
Reverse
Scan
Sound
Device
Take-up friction
Film
Gate
Bottom sprocket 35 mm
• Put the full reel on the upper reel shaft or prepare
the platter system.
• - Open the sprocket pad shoe.
- Thread the film in the combined feed sprocket
(all perforations engage in the sprocket teeth).
- Close the pad shoe.
• Thread the film into the film gate and close the
film pressure skate.
One whole frame must be centered vertically in
front of the aperture opening.
There is a small light inside the aperture to assist
in centring.
Assure the film is centered horizontally between
the ceramic discs.
A film loop of about 4 frames - 16 perforations
must be left both just above and just below the
gate!
If the loops are too big the film will touch station-
ary parts and be scratched .
If the loops are too small the film may break, the
image may jump, or the sound may warble .
• - Open the sprocket pad shoe.
- Thread the film into the combined holdback/
bottom sprocket (all perforations engage in the
sprocket teeth).
- Close the pad shoe.
- Verify the loop below gate is still OK.
• Thread the film through the guide rollers to the
sound head (35 mm film), the sound pressure
roller may be lifted to ease threading
• - Open the 35 mm sprocket pad shoe.
- Thread the film into the holdback/bottom
sprocket (all perforations engage in the
sprocket teeth).
- Close the pad shoe.
- Verify the loop below the gate is still OK.
• Thread the film via the guide rollers to the take-up
friction and wind-up the film several times around
the take-up reel or lead the film to “take-up” level
of platter system.
ATTENTION
If the projector was switched off with a threaded film the film loops and the film position
must be checked again.
Содержание FP 75 E
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Страница 21: ...FP 75 E Installation Mounting Issue 08 2012 11 2 3 2 Important Hints for Installation Projector Dimensions ...
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Страница 68: ...FP 75 E Issue 08 2012 58 Figure 1 1A 1B 1C 1D 2A 2B 2D 2C Figure 2 Figure 3 3A 3B ...
Страница 69: ...FP 75 E Parts and Wearing Parts Issue 08 2012 59 4A 4B Figure 4 Figure 5 5A 6A Figure 6 6A 6A 6B 6C 6C ...