Bell and Howell 1598, User Manual

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P a n chromatic TQIII & TQIII Specialist User Manual
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12
Special features
25 Reverse motion. At any time during a presentation the film may be reversed by turning the
switch anticlockwise to one of the two "reverse" positions. It you do not wish the audience to see
the action backwards, but just to repeat a scene, use the arrowed position of the bar; if, however,
backward action is a part of your presentation, use the position with the lamp symbol. (In reverse,
the lamp is always run at the reduced "economy" voltage and the sound is automatically cut off.)
26 Still pictures. The action of the film can be "frozen" at any time, to allow detailed study of a
single frame, by moving the run/still/lever 26a to the rear. Automatically, the light reaching the
film is reduced to prevent overheating of the stationary frame. if you have been projecting at the
"economy “setting of the lamp switch, you can increase the brightness of a still picture by
advancing the switch bar to the full brightness setting. It is advisable to readjust focus when
showing stills. To revert to normal projection, see Stage 28.
27 Animation, This Bell & Howell invention allows a succession of still pictures to be shown, and
examined frame by frame, at your own choice of speed. Set the run/still/lever 26a to the rear for
still projection as described in Stage 26. To change from one stationary frame to the next, tap the
animation lever 27a. If, however, you wish to move on for a few frames before showing another
Still picture press 27a down until the next frame to be examined/s on the screen, and then release
it.
28 After showing a still or using animation, there is no need to switch the lamp off before reverting
to normal running. Just move the run/still/ever forward to the running position and then readjust
the focus setting. Your presentation will be more polished if you turn the volume control to "0"
before normal projection is resumed and then advance it again to fade in the sound after the film
has started to move.
After the show
29 At the end of the presentation, leave the main power switch at "on" for about a minute so that
the fan has time to cool the lamp. While this is being done, fold the locks on the two spool
spindles to their angled positions. Press the release buttons of the front (29a) and rear (29b) spool
arms and lower the arms as far as they will go. Turn the tilt control fully to the left. If you have
been using an external loudspeaker or separate amplifier, disconnect the plug from the socket at
the back of the projector.
30 Press the main power switch to "off" and disconnect the power lead from the mains supply.
Coil the lead on its bobbin in such a way that the moulded power plug is not strained.
31 Lower the side cover so that the two "ears" 310 enter the recesses 31 bin the base of the
projector and then push it closed at the top until the two clips can be fastened.