Simplex X-L: Difference between revisions

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* Thread the film as illustrated. Thread the intermittent sprocket (Item 9) first and check for correct frame position at the framing aperture (Item 13). When correct, close the intermittent show pads (Item 5). Secure the gate by pushing the gate into the trap until the spring-loaded gate latching pin (Item 12) engages. Form two-finger loops above and below the gate as illustrated, and close the pad roller assemblies (Items 2 & 6).
* Thread the film as illustrated. Thread the intermittent sprocket (Item 9) first and check for correct frame position at the framing aperture (Item 13). When correct, close the intermittent show pads (Item 5). Secure the gate by pushing the gate into the trap until the spring-loaded gate latching pin (Item 12) engages. Form two-finger loops above and below the gate as illustrated, and close the pad roller assemblies (Items 2 & 6).


* Rotate the motor flywheel by hand to advance a few frames of film. ''Do not'' "inch" the mechanism by momentarily switching the drive motor on and off; in the event of a threading error, film may be damaged. Run fingers over each sprocket (Items 1, 7 and 9) to insure that the sprocket teeth are centered in the film perforations, and the film is centered between the flanges of the pad rollers. Check again the position of the film in the framing aperture (Item 13). With the intermittent sprocket in its "rest" position, a correct frame image in the framing aperture insures correct frame positioning in the picture aperture (Item 11). Use the framing knob (Item 8) or handle to correct misframes.
* Rotate the motor flywheel by hand to advance a few frames of film. Run fingers over each sprocket (Items 1, 7 and 9) to insure that the sprocket teeth are centered in the film perforations, and the film is centered between the flanges of the pad rollers. Check again the position of the film in the framing aperture (Item 13). With the intermittent sprocket in its "rest" position, a correct frame image in the framing aperture insures correct frame positioning in the picture aperture (Item 11). Use the framing knob (Item 8) or handle to correct misframes.
 
[[File:Simplex intermittent sprocket.JPG|thumb|300px| Intermittent sprocket on a Simplex XL projector. Observe its range of motion and set to the center of its travel before threading. See [[Framing]] for more details.]]


* Thread the soundhead.
* Thread the soundhead.