5.2 Pick up forward end of reproducer unit between thumb and forefinger of your left hand sothat tips of thumb and finger project about 1/2" below bottom of unit.
5.3 Move unit over until needle point is above starting groove and rest tips of thumb and
forefinger on record surface so as to hold needle point just off record.
5.4 Place your right hand with fingers resting lightly on underside of turntable, near edge,
and thumb on top of record, near edge; hold turntable steady and by moving thumb turn record so
that startIng arrow comes exactly below needle point.
Lower needle down gently into starting groove at this point by slowly opening thumb and
forefinger between which it is held. Do not push point into groove by sliding it sideways
across uncut record surface, but lower it straight down. When it is in place rest fingers
lightly on top of reproducer and gently press it towards each side to make sure needle point is
in groove.
5.6 Put record clamp over center pin of turntable and press it down on record firmly, but
not too heavily.
(6) Turn over mechanism by handwheel until turntable and record have revolved about half a
turn. See that needle tracks properly on record and film travels free.
(7) On synchronized feature pictures, by starting and stopping motor with starting switch run
off as much film as necessary to bring end of "Part No." leader approximately up to projector
aperture. Avoid doing this to excess', as it tends to burn up the switch contacts.
Important
Never attempt to stop or slow up a projector equipped for disc reproduction by holding on to
the turntable, as this may cause damage to the apparatus and spoil the synchronism for the
subject that is being set up. The turntable coasts about four turns after the power is shut
off.
Never remove record clamp, or put It on, while turntable is revolving.
Horn Controls
 If the equipment has 12-A upper horns and 13-A
lower horns, then after setting up the record or
film as directed in the instructions immediately before this, adjust the horns for an A, B, or
C setting, as required for the particular subject being shown (See "Rehearsing"). The following
is the procedure required:
For an equipment using 41, 42, or 43 type amplifiers, which is provided with an output control panel (Fig. 4),
the following table shows the steps on which the horn control dial switches on this panel must be placed to
give the A, B, and C settings, respectively.
| "A" Settings
|
| Controls | 1 | 2 | 3 | 4 | 5 | 6 |
| Steps | ... | ... | ... | ... | ... | ... |
| "B" Settings
|
| Controls | 1 | 2 | 3 | 4 | 5 | 6 |
| Steps | ... | ... | ... | ... | ... | ... |
| "C" Settings
|
| Controls | 1 | 2 | 3 | 4 | 5 | 6 |
| Steps | ... | ... | ... | ... | ... | ... |
(Our engineer will fill in these figures).
If the equipment employs a 46 type amplifier, horn setting is done by means of the horn control
key, which is mounted on a wall cabinet. This key has two positions, marked "A or "B" and "C". Use whichever is required.
|
