RCA SelectaVision VideoDisc SFT 100 Service Data page 75

Sty
1.
CED-1 Addendum-2
MECHANICAL ADJUSTMENTS
(continued)
Turntable
Height
Adjust
Screw
Fig. 3-9. Turntable Height Adjust Screw
lus Cleaner Adjust
Remove stylus cartridge from pickup arm assembly and store
in safe place to prevent damage to stylus.
Insert caddy in player.
Slowly remove loaded caddy observing action of left receiver
pad and sweeper actuating cam (item 12) and stylus lifter in
arm assembly, Figs. 3-10 & 2-13.
As caddy is being removed and it just clears the slope of the
highest portion of actuating Cam (item 12), sweeper switch 57
should be actuated (turned on) causing stylus lifter (in pickup
arm assembly) to lower. If this does not occur position switch
S7 so that it does occur.
Continue removing caddy slowly — as caddy just clears the
idle slope of actuating Cam (item 12), tne sweeper arm should
trip to clean the stylus. If the sweeper arm does not trip at this
point adjust screw (item 13) to make it happen.
As caddy clears actuating Cam, just after sweeper arm trips,
the stylus lifter should raise.
NOTE: Switch S7 controls stylus lifter action during this
function and adjustment of actuating Cam adjust-
ment screw (item 13) controls tripping of sweeper
Stylus Stylus Stylus
Sweeper Sweeper Lifter
Actuating Actuating Switch
Cam Adjust $7
Fig. 3-10. Sweeper Actuating Сат
Spine Sense Switches S6 & $8
Spine sense switches S6 & S8 should be in the "ON" state any-
time a disc and spine are present in the player. If necessary, bend
forward slightly the tab portion of the switches which contact the
spine, Fig. 3-11.
TER ff T
Fig. 3-11. Spine Sense Switches
Spindle Pulldown Adjust
Adjust spindle pulldown lever link (item 37) so that spindle retain-
ing yoke assembly (item 28) bottoms out, just touches turntable as
loaded caddy is being inserted into the player. Clockwise rotation
of lever link (item 37) pulls yoke assembly toward turntable, Figs.
3-12 & 2-13.
Pulldown
Actuating
Cam
Pulldown
^dlust
Spindle
Pulldown
Link
Fig. 3-12. Spindle Pulldown Link
Transducer Adjustment
Remove transducer cover and actuator link. Transducer hold-
down screws should be sufficiently loose to allow transducer to
slide freely (Fig. 3-13).
1. Push transducer against actuating spring as far as it will
travel. Tighten one screw until transducer is locked in posi-
tion. Loosen screw slowly until the spring is just able to push
the transducer to its full travel in the opposite direction.
2. Without changing position of the screw adjusted in step 1.
repeat the same process for the remaining screw. (See
Lubrication page 3-4).
Fig. 3-13. Transducer Assembly
Turntable Motor Speed Adjust
1. Turn motor mount screw (screw located farthest from turnta-
ble center Fig. 2-7) clockwise until it bottoms out (just begins
to tighten).
2. Adjust same motor mount screw counterclockwise 1 turn
4/2 turn, until turntable drive belt rides exact center of motor
drive pulley. 3-3