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Technics SL-P2000

Technics SL-P2000
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Removal
of
the
loading
motor
ass’y
Procedure
1-3-—-10-14
—16—-17-19
Loading
motor
ass'y
1.
Remove
the
belt.
2.
Remove
the
2
screws(@,
@).
3.
Release
the
2
claws
and
then
remove
the
loading
motor
ass’y.
Procedure
1-3-4-6
2.
Remove
the
3
screws(
@~
@).
3.
Remove
the
main
P.C.B.
in
the
direction
of
arrow.
FL
drive
P.C.B.
Ground
terminal
Cc
4.
Attach
the
loading
unit
to
the
unit.
5.
Connect
the
3
flat
cables(CN401,
CN402,
CN403)to
the
corresponding
terminals
on the
main
P.C.B.
6.
Connect
the
main
P.C.B.
ground
terminal(LINE
OUT
terminal)to
the
rear
panel
ass’y
with
a
lead
wire.
7.
When
checking
the
soldered
surface
of
the
main
P.C.B.
and
replacing
the
parts,
do
as
shown.
¢
When
checking
the
soldered
surface
of
the
servo
P.C.B.
and
replacing
the
parts,
do
as
shown.
SL-P2000
3.
Attach
the
front
panel
ass’y
to
the
unit.
4.
When
checking
the
soldered
surface
of
the
power
supply
P.C.B.
and
replacing
the
parts,
do
as
shown.
1.
Remove
the
7
screws(@~
@).
2.
Remove
the
power
supply
P.C.B..
Mi
HANDLING
P.C.B.
WITH
DUAL
DC
POWER
SUPPLY
OF
DIGITAL
LINEAR
SERVO
CIRCUIT
To
make
the
SL-P2000
more
refined,
the
digital
servo
circuit
uses
a
dual
DC
power
supply
for
its
driverstage.
For
this
reason,
the
present
circuit
diagram
and
printed
circuit
board
used
in
the
SL-PS700
and
SL-PS900
have
been
modified.
Caution:
The
new
servo
P.C.B.
(marked
with
©
and
white
line)
for
the
SL-P2000
cannot
be
replaced
by
the
present
servo
P.C.B.
used
in
the
SL-PS700
and
SL-PS900.
Refer
to
“How
to
distinguish
New
P.C.B.”.
(How
to
distinguish
P.C.B.
on
next
page.)
The
present
servo
P.C.B.
(without
the
@
mark
and
white
line),
if
improperly
used
for
the
SL-P2000,
may
cause
a
short-circuit
between
P.
Vee
(—)
and
GND.
e
Changes
in
the
Circuit
The
new
digital
linear
servo
P.C.B.
is
similar
in
shape
to
the
present
digital
linear
servo
P.C.B.,
with
the
circuit
modified
as
follows.
(New
Servo
Circuit)
DUAL
DC
POWER
SUPPLY
TYPE
SERVO
CIRCUIT
(used
in
SL-P2000
93
New
Moiel)
(Present
Servo
Circuit)
SINGLE
DC
POWER
SUPPLY
TYPE
SERVO
CIRCUIT
(used
in
Present
Model)
Ex:
SL-PS900
SERVO
P.C.B.
NEW
SERVO
P.C.B.
Each
ground
line
(GND)
is
separated.
<
ae
,
—
To
Main
P.C.B.
—,
(=
=
To
Nain
1c103
P.C.B.
Fin
AN8377
—_
@—-—-@-—)

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