RCA 400 User Manual

8. Run the film over the guide roller, under the
rubber pressure roller, clockwise around the sound
drum, and over the tension roller.
9. Thread the film to the left of and under the
lower sprocket.
10. Next run the film under the snubber roller
to the lower reel.
11. Insert the end of the film in the slot in the
hub of the lower reel, or attach it to the hub with a
piece of adhesive tape.
12. Rotate the reel clockwise by hand to take
up film slack. Lift the reel slightly to equalize
belt tension. This will prevent the reel from rolling
backwards when it is released.
Operating
Sound Pictures
When sound pictures are to be projected proceed
as follows:
1. Turn the ON-OFF switch on the amplifier to
the ON position.
NOTE: The sound lamp lights within 15-30
seconds after the ON—OFF switch has
been turned ON. It can be observed through
the observation window (see figure 2) in
its housing.
2. Turn the VOLUME control to "0", and the
TONE control to "5" on the "Senior" model, or to
NORMAL on the "Junior" model.
3. Turn the PROJ-OFF switch to PROJ, then
turn the SPEED SELECTOR downward to SOUND.
4. Turn the LAMP-OFF switch to LAMP, in
that order.
5. Focus by rotating the projection lens until
the picture is clear and distinct. Titles or other
printed portions of the picture make excellent sub-
jects on which to focus.
6. Turn the VOLUME control clockwise until
the desired volume is obtained.
7. Frame the picture, if necessary, by turning
the FRAMING knob until one complete picture
shows on the screen.
8. Adjust the TONE control for the most pleas-
ing effect.
9. When the last picture has appeared on the
screen, and before all the film has passed through
the projector, return the LAMP—OFF switch to
the OFF position.
11. Finally, return the PROJ-OFF switch to
the OFF position.
NOTE: Occasionally, damaged film may
prevent the intermittent pull-down claw
from properly engaging the sprocket holes
in the film. This may result in the loss of
the lower loop. When this happens, the pic-
ture on the screen is blurred. The difficulty
can be remedied immediately, without stop-
ping the machine, by placing a finger above
the film as it emerges from the lower end of
the picture gate and quickly pulling down
on the film until the finger strikes the
finger stop (see figure 1).
The THREADING LAMP, on the "Senior" model,
can be turned on with the THREADING LAMP
switch when light is needed during a show, thus
eliminating the necessity for turning on the room
lights. The cover of this lamp can be rotated to
direct the light where required.
Silent Pictures
Proceed as for showing a sound picture, with
the following exceptions:
1. Turn the speed selector upward towards
SILENT. This decreases the speed of the projector
to that appropriate to silent pictures.
2. Leave the ON-OFF switch on the amplifier
in the OFF position. Omit any adjustment of volume
or tone, unless the public address feature is to be
used. If it is, consult the section on "Public
Address and Record Playing" in this manual.
Rewinding
Film should be rewound immediately after pro-
jection. Rewinding is done quickly with the projec-
tor as follows:
1. Bring the end of the film from the lower reel
directly to the hub of the upper reel, without twist-
ing the film, and attach it. Give the upper reel a
few turns counterclockwise by hand to take up film
slack.
2. Turn
REWIND.
the REWIND-OPERATE lever to
10. Turn the VOLUME control to
as the sound ceases.
'0" as soon
3. Put the PROJ-OFF switch in the PROJ posi-
tion and let the projector run until the film is re-
wound.
4. Turn the speed selector downwards toward
SOUND.
When two or more reels are to be shown, it may
be desirable to postpone rewinding until all the
reels have been shown, since this shortens the
delay between successive reels. As a result, the

RCA 400 Specifications

General

Power Supply	9V Battery
Type	Multimeter
Display Type	LCD
Dimensions	138mm x 69mm x 31mm
Weight	Approx. 170g (including battery)