Instructions For Film Projection - Siemens 2000 Service Manual

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Instructions for film projection
PREPARATION
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Set up projector, plug in and switch on.
Adjust size of frame by choice of correct focal length for lens .
Align frame.
Adjust speed.
Switch off projector.
Set up loudspeaker and plug in.
Connect microphone and pickup.
Thread film.
Switch on projector, set selector a (Fig. 7) for the various sound tracks to
required position.
Switch on amplifier and adjust reproduction.
Switch on lamp current.
Adjust focus .
Adjust frame-line.
Check film speed.
For optical sound film projection the film speed must be exactly 24 frames
per sec. The correct speed is obtained when the inner ring of the strobo-
scopic disk appears to remain stationary when illuminated by the pilot lamp.
For silent and magnetic sound film projection lower film speeds are
admissible.
If a 750-watt lamp is used, the film speed must be at least 20 frames per sec.
15. Check volume control.
16. Feed film in reverse.
17. Switch off projector.
18. Switch off amplifier.
Do not make any other adjustments on projector
PROJECTION
1. Switch on amplifier
2. Switch on pilot light.
3. Switch off room lighting.
4. Switch on projector and turn main knob slowly clockwise until ammeter
reads figure specified for particular lamp used.
5. Adjust volume.
6. Readjust tone control.
7. When film transportation, film speed and volume are found correct, switch
off pilo t lamp.
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