Specifications

6-4
Analog Optical Alignment - Projector
Place a white card at the front of the
lens close to the position of the film
sound track. Adjust the position of the
exciter lamp until the image of the
filament is centered both vertically and
horizontally as shown.
You may find that obtaining an image of
the filament is difficult in some
projectors. Place a piece of tissue paper
over the lens to assist in seeing the
image of the filament. Some projectors
do not use adjusting screws to change
the position of the lamp; shims are
sometimes used for positioning.
Loosely install the stereo solar cell
bracket on the projector. Position the
bracket carefully until the surface of the
cell is 1 mm from the film plane surface.
Note that if this distance is exceeded,
there will be crosstalk between the two
optical stereo tracks. Check the image of
the slit on the cell. The image should be
a thin sharp line. The slit image should
be as long as the cell, and positioned
three-quarters of the way up the cell.
Try to get the best compromise among
all of these conditions and then tighten
the cell bracket mounting screws.
Confirm that the cell wiring and
connections are correct. Shielded cables
must be used. The inner conductors
must be wired to the CP500 OPTICAL
input connectors exactly as shown on
the wiring diagram fold-out.
NOTE
:
The solar cell associated with the
right channel is closest to the edge of the
film.