C.E.C. ST630 - Page 4

When
the
tonearm
is
moved
to
the
position
where
the
tracking
error
angle
is
disappeared,
the
shutter
plate
will
obstruct
the
light
to
the
sensor.
The
current
will
become
lower,
the
voltage
will
become
lower
too,
and
then
servo-controlled
motor
will
stop
rotation.
3.
DISASSEMBLY
INSTRUCTIONS
(A)
TOOLS
REQUIRED
FOR
DISASSEMBLY
Phillips-head
screwdrivers:
for
M2
and
M3
Slotted-head
screwdrivers:
for
the
width
2.5~4
and
5~7.5
mm
(B)
REMOVE
CABINET
TOP
(1)
AS
FOLLOWS:
1.
In
case
that
the
tonearm
starts
moving
normally,
1-1.
Press
the
POWER
Button
(5)
so
that
the
power
will
be
switched
off,
and
remove
the
turntable
platter
and
mat
(Fig.
1).
Figure
1
1-2.
Place
the
turntable
upside
down
on
a
suitable
bench.
1-3.
Remove
the
seven
Screws
(207)
which
mount
the
Cabinet
bottom
(15)
(Fig.
2).
0?) Red screws clamping Qo)
y plate Assy @)
&;
Cam for PITCH
ADJUSTMENT OF STYLUS
SETDOWN POSITION
Figure 2
1-4. Reverse the turntable.
1-5. Remove the screw (206) which mounts the Cover(10) to
the Cabinet top (1).
14. Remove the Cover (10) from the Cabinet top by drawing
it (Fig. 3).
Press
the
POWER
button
so
that
the
power
will
be
1-7.
switched
on
and
remove
the
tonearm
to
the
position
— 3—
where the Cover (10) was mounted, pressing the START
button.
Press the POWER button to switch the unit off.
Remove the three Screws (207) which mount the
Cabinet top (Fig. 4) and lift the Cabinet top.
Figure 4
Fig ure 3
2. In case that the tonearm does not start moving with
trouble,
2-1. If the tonearm is above or on the turntable platter, turn
the Pulley (33) counterclockwise through the hole
referring to Fig. 5 with the slotted-head screwdriver
(width 2.5 ~ 4mm) until tonearm moves to its rest
position.
2-2. Remove the turntable platter and mat.
2-3. Follow the same steps as described above 1-2, 1-3, 1-4,
1-5 and 1-6.
2-4. Move the tonearm to the position where the Cover (10)
was mounted, turning the Pulley (33) clockwise (Fig.
5).
2-5. Follow the same step as above 1-9.
NOTE: If the tonearm does not move by turning the
Pulley (33) (Fig. 5), an additional force by
finger should be added to the bended part of
tonearm in the desired direction.
Figure 5
(C)
REMOVE
THE
PLATE
ASSY
(47)
AS
FOLLOWS:
1.
After
removing
the
cabinet
top,
remove
Position
PWB
Assy
(69)
referring
to
Fig.
6.
2. Remove the Belt (34) between Servo-controlled Motor (76)
and Pulley (33).
3.
Remove
the
Bearing
Assy
(30)
referring
to
Fig.
7.
Figure 6