Sansui SR-2020 - Page 4

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3.
ADJUSTMENT
OF
AUTO
MECHANISM
(See
Fig.
3-1,
3-2, 3-3 and 3-4)
. The adjusting screw “‘A” in Fig. 3-1 is the one
to adjust the position of AUTO-UP (lifting off
of the tone arm from the disk automatically).
The adjusting screw ‘‘B” is the one to adjust the
position of AUTO-IN (setting of the tone arm
on the disk automatically).
. To begin with, when the tone arm is located at
the position as shown with line in Fig. 3-1, the
adjusting screw “A” will appear in the adjusting
hole.
When the screw is turned clockwise, the action
of AUTO-RETURN will become sooner. To the
contrary, when it is turned counterclockwise,
the action of AUTO-RETURN will become later.
Make adjustment of the screw in such a way
that auto-returning operation is carried out at
the middle way of the lead-out groove.
adjusting screw “A”
\
adjusting hole ys
-
adjusting screw “B
finishing groove
lead-out
groove
lead-over
groove
modulated groove lead-in groove
Fig. 3-2
. When the tone arm is moved to the position
shown with dotted line, the adjusting screw
“B” will appear from adjusting hole.
When the screw is turned counterclockwise, the
timing of AUTO-IN will become sooner. To the
contrary, when it is turned clockwise, the tim-
ing of AUTO-IN will become later. Adjust it in
such a way that the tip of the stylus will touch
the middle way of the lead-in groove.
. The adjusting screws @), @ias shown in Fig. 3-3
are the screws to adjust the position of AUTO-IN
to the disk sizes of 17 cm, 25 cm individually.
Take for instance, in case if the position of
AUTO-IN at the time of 17 cm is deviated,
even if it is all right in case of AUTO-IN at
30 em, turn the adjustment screw@yin Fig. 3-3
and adjust it.
When
the
timing
of
AUTO-IN
is
sooner,
turn
it
counterclockwise.
To the contrary, if it is later, turn it clockwise
and adjust it in such a way that it will touch the
central position of the lead-in groove.
. Carry out the paint locking to the abovemen-
tioned screws after adjustment.
sefect arm (B)
select arm (A)
1 S 2 fa -
a adjusting screw(2} (17 cmaiisk]}
Fig. 3-3
Adjusting Screw “A” Adjusting Screw “B”
(For Auto-up position} (For Auto-in position|
7-3