Siemens 2000 Service Manual page 11

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2. Thread film end p (Fig. 6) emerging from film channel between loop stab i-
lizer i and pressure roller h, around sound drum I, over filter roller m and
under sprocket n.
3. Close sprocket contact lever g.
4. Take film end over guide roller rand under guide roller q (Fi g. 6) to take-up
reel and thread film in reel.
5. Press release button o (Fig. 7) to enable pressure roller h (Figs. 6, 7).
6. Pull film loop below lens holder downward so that film lies smoothly be-
tween sound drum I and loop stabilizer i (Figs. 6, 7). If lower loop is too
small, pull more film down through film channel and enlarge upper loop by
pu lling more film from supply reel.
7. Check running of film by briefly switch ing on projector us in g the automatic
inching button .
Threading film for silent projection
With si lent projection, the film is not passed through the sound head as in th e
case of sound film projection. The film is threaded around lower sp rock e t n
(Fig. 6) so that sprocket teeth mesh with sprocke t holes in film by pr ess ing
down pressure roller h (Fig. 6) and locking in axial direction.
Fig. 7 Optical/magnetic sound head
Roller plate with magnetic head assembly
10
a selector for the various
sound tracks
b inscription plate with
symbols explaining
positions of selector a
c magnetic head for 2.5 mm
track
d erase head
e sound head lens
f slit image adjusting
screw
g sprocket contact lever
h pressure roller
loop stabilizer
spindle of p ressure roller h
sound drum
m filter roller
n lower sprocket
o release button