Technics SL-PS900 Service Manual

oe
Removal
of
the
optical
pickup
Procedure
4-29-10
|
1:
Remove
the
3
screws
(O~®).
342-1314
|
2:
Unsolder
the
2
terminals
of
spindle
1516-19
motor.
3. Remove the FPC board from the
optical pickup.
Connector (CNIO!) Sree (1)
Caution:
To
prevent
the
breakdown
of
the
laser
diode,
antistatic
shorting
pin
is
inserted
into
the
FPC
board.
FPC board
Shorting pin
Ref. No.
21
Procedure
1-2--9-10
12-13-14
15-16-19
—21
Removal of the spindle motor
1. Loosen the screw (@) by using a 1.27mm allen
wrench and remove the turntable.
2. Remove the 2 screws (Q, ©).
Caution:
1. Turntable height adjustment is necessary any time
the turntable or spindle motor is replaced.
2. The (+)-terminal of the spindle motor is indicated
by the red mark. '
Adjustment of. turntable height
1.
Insert
a
0:9mm
clearance
gauge
(RZZ0297)
between
the
turntable
and
loading
base
as
shown
in
the
figure.
2.
Tighten
the
turntable
set-screw
by
using
a
1.27mm
allen
wrench.
Caution:
Refer
to
turntable
height
adjustment
(See
page
16).
aia
e
Removal
of
the
optical
pickup
Procedure
1-29-10
12-13-14
—15—16-19
Unsolder the
20 terminals
Brush
terminal
Optical pickup
1. Remove the 2 screws (QO, @).
2. Unsolder the 2 terminals and the 2 screws (@, ©).
Caution:
Take
care
not
to
touch
the
brush
terminal.
Refer to the handling precautions for
optical pickup and instructions for
traverse oil (See page 8).
Turn table 0.9mm
clearance gauge
peerereten 0.9 mm (RZZ0297)
Spindle motor
ah
“NO
1
Procedure
1-2-9-10
11-1214
—15—23
Remove the 7 screws (Q~@).
Yoke, magnet & clamper
Test disc
. Attach the front panel ass’y to the unit.
.
Rotate
the
pulley
gear
in
the
direction
of
arrow
until the traverse unit comes up.
.
Place
the
test
disc
and
secure
it
by
using
the
yoke,
magnet and clamper.
. Power switch toON.
.
While
pushing
the
open/close
det.
switch
($751)
in
the
direction
of
arrow,
push
the
play
switch.
. When checking the soldered surface of servo
P.C.B. and replacing the parts, do as shown.
| SL-PS900
eWhen checking the soldered surface of the main
P.C.B.
and
replacing
the
parts,
do
as
shown
below.
Cautions:
1.
Connect
the
main
P.C.B.
ground
terminal
(LINE
OUT
terminal)
to
the
chassis
with
a
lead
wire.
2.
Connect
the
operation
P.C.B.
ground
terminal
to
the
chassis
with
a lead
wire.
Operation P.C.B.
4.
Connect
the
3
flat
cables
(CN401,
CN40?,
CON403).
5.
Fix
the
loading
unit
by
tape.
Power switch

Technics SL-PS900 Specifications

General

Brand	Technics
Model	SL-PS900
Category	CD Player
Language	English