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Technics SL-PJ28 - Page 6

Technics SL-PJ28
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How
to
check
the
main
P.C.B.
Procedure
172-18
1.
Remove
the
4
screws
(0~@).
5S.
Place
the
loading
unit
sideways
as
shown
in
the
figure
right.
6.
After
placing
the
unit
as
shown
right,
perform
check
and
adjustment
of
the
foil
on
the
servo
P.C.B.
«When
checking
the
soidered
surface
of
the
main
P.C.B.
and
replacing
the
parts,
do
as
shown.
Cautions:
1.
Connect
the
main
P.C.B.
ground
terminal
(LINE
OUT
terminal)
to
the
chassis
with
a
lead
wire.
OPEN/CLOSE
switch
.
Attach
the
front
panel
ass’y
to
the
unit.
.
Turn
on
the
power
switch
and
press
the
OPEN/CLOSE
switch
to
open
the
disc
tray.
4,
Load
the
test
disc
and
press
the
OPEN/CLOSE
switch
again
to
close
the
disc
tray.
U3
won
Loading
unit
Bi
Installation
of
the
disc
tray
Traverse
unit
Lock
lever
1.
Move
the
lock
lever
in
the
direction
of
arrow
@,
and
then
move
the
conversion
lever
in
the
direc-
tion
of
arrow
2.
(The
traverse
unit
will
move
upward.)
2.
Use
the
two
screws
to
mount
the
tray
guide
shaft
to
the
loading
unit.
-
-
Driving
gear
(2)
Disc
tray
7.
Move
the
driving
gear
(2)
fully
in
the
direction
of
arrow
©.
8.
While
continuing
to
support
the
disc
tray
with
your
hand,
slide
the
driving
gear
(2)
as
far
as
it
will
go
in
the
direction
of
arrow
©.
(Althought
it
will
only
stide
a
smal!
amount,
this
will
allow
the
loading
gear
to
mesh
together
with
the
gear
of
the
disc
tray.)
10.
[
si-ps28_
Disc
tray
.
Use
the
screw
to
mount
the
disc
tray
to
the
guide
shaft
holder.
.
Move
the
driving
gear
(2)
fully
in
the
direction
of
arrow
@.
.
Move
the
disc.
tray
fully
in
the
direction
of
arrow
.
Tilt
the
disc
tray
downward
in
the
direction
of
arrow
©.
Traverse
unit
Convers:
lever
Driving
gear
(2)
.
Move
the
conversion
lever
in
the
direction
of
arrow
(The
traverse
unit
will
move
downward.)
Move
the
disc
tray
fully
in
the
direction
of
arrow
6).
(When
doing
this,
confirm
that
the
driving
gear
(2)
slides
in
the
direction
of
arrow
@.)

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