S E T T I N G U P

Film Reproduction

To set up a sound film ready for operation, proceed as follows:

(1) See that fader is at zero and that film pick-up circuits are connected to it.

(2) On projector head, push in, as far as it will go, the small handle to which is attached the aperture sound track mask.

(3) On projector, place framing lever in central position. Move projector mechanism by turning motor flywheel, so that shutter cut-off blade is uppermost, lens is open, and intermittent has just ceased moving. Thread projector mechanism with film in usual manner but be sure that loop, between intermittent sprocket and lower sprocket of head, is such that film just comes in line with edge of head, as shown on diagram "Film Pick-Up Attachment".

(4) Thread film through film pick-up attachment as shown on diagram "Film Pick-Up Attachment". In doing this, allow for slack, between the lower sprocket of the machine and the attachment sprocket, a length of film equal to approximately two sprocket tooth intervals.

(5) It is very important to allow film loops exactly as specified in (3) and (4) ; otherwise synchronism between the sound heard from the horns and the accompanying action of the screen will not be perfect.

Some films are marked to indicate which frame goes at the picture aperture and which at the lens aperture, in starting. Cases where such markings are given form the only exception to the above rule, and the marking must then be followed.

(6) After film has been properly located on attachment sprocket, release tension pad, so that it bears on film and holds it close up against aperture plate in front of lens tube, as shown on diagram.

(7) On synchronized feature pictures, by starting and stopping motor with starting switch run off as much film as necessary to bring end of "Part No" leader approximately up to projector aperture.

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S E T T I N G U P

Disc Reproduction

To set up the record and film ready for operation, proceed as follows:

(1) See that fader is at zero and that pick-up circuits are connected to it.

(2) See that, reproducer is in its rest. Put in new needle.

(3) Select film and record to be used, and be sure to check number on record against number on film. Mark record on label to show number of times used, counting this run.

(4) On projector, place framing lever in central position. Move projector mechanism by turning flywheel on motor so that shutter cut-off blade is uppermost, lens is open, and intermittent has just ceased moving. Thread mechanism with film in usual manner, placing frame marked "START" directly in front of aperture.

On Simplex and Motiograph, this step is easier if you remember that when a frame is in front of the aperture, the lower edge of the aperture plate track will be between the eighth and ninth sprocket holes from the lower edge of the frame. Therefore, splice a white leader on the ninth hole from the "START" frame, and then when you line up this splice with the lower edge of the aperture plate track, the "START" frame will be at the aperture. (see illustration "Setting Up Film For Disc Reproduction"). On the Powers, the gate is open when threading, so that there is no difficulty.

(5) Set up record on turntable. In doing this, following method must be strictly observed so as to avoid risk of imperfect synchronism or damage to records. Motor must never be turned when adjusting record on turntable:

5.1 Hold record with both hands and lay it on turntable so that starting arrow is at about the place where needle comes. Wipe off record lightly with cleaner provided.

5.2 Pick up forward end of reproducer unit between thumb and forefinger of your left band so that tips of thumb and finger project about 1/2" below bottom of unit(See illustration, "Method of Setting Record At Starting Point")

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S E T T I N G U P

Disc Reproduction

5.3 Move unit over until needle point is above starting groove and rest tips of thumb and forefinger on record surface so as to hold needle point just off record.

5.4 Place your right hand with fingers resting lightly on underside of turntable, near edge, and thumb on top of record, near edge; hold turntable steady and by moving thumb turn record so that starting arrow comes exactly below needle point.

5.5 Lower needle down gently into starting groove at this point by slowly opening thumb and forefinger between which it is held. Do not push point into groove by sliding it sideways across uncut record surface, but lower it straight down. When it is in place rest fingers lightly on top of reproducer and gently press it towards each side to make sure needle point is in groove.

5.6 Put record clamp over center pin of turntable and press it down on record firmly, but not too heavily.

(6) Turn motor flywheel by hand until turntable and record have revolved about half a turn. See that needle tracks properly on record and film travels free.

(7) On synchronized. feature pictures, by starting and stopping motor with starting switch run off as much film as necessary to bring end of "Part No." leader approximately up to projector aperture.

Important

Never attempt to stop or slow up a projector equipped for disc reproduction by holding on to the turntable, as this will cause damage to the apparatus and spoil the synchronism for the subject that is being set up. The turntable coasts about four turns after the power is shut off.

Never remove record clamp, or put it on, while turntable is revolving.

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S E T T I N G U P

Horn Controls

If the equipment is of the rack mounted type with a 200-A output control panel, after setting up the record or film as directed in the instructions immediately before this, adjust the horn controls on the output control panel for the A, B, or C setting, as required for the particular subject being shown (See "Rehearsing"). The following table shows the steps on which the horn control dial switches on this panel must be placed to give the A, B, and C settings, respectively.

"A" Settings

"B" Settings

"C" Settings

(Our engineer will fill in these figures).

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