Akai AX-890 User Manual

Ill.
MAIN
COMPONENTS
REPLACEMENT
3-1.
REMOVAL
OF
THE
TRAVERSE
MECHA.
1)
Remove
the
BOTTOM
COVER
(refer
to
page
6).
2)
Short
the
circuit
on
the
PICK
UP
BLOCK
with
solder
as
shown
in
Fig.
3-1.
PICK UP
BLOCK
Bottom view
SHORT POINT
\ Shorted
S— with
solder
PCB
Fig. 3-1
’
3)
Disconnect
the
three
connectors
carefully
(two
connectors
are
on
the
PICK
UP
PCB
and
the
other
is
on
the
MOTOR
PCB
of
the
TRAVERSE
MECHA.).
TRAVERSE MECHA
CONNECTOR
Fig. 3-2
4)
Remove
the
four
retaining
screws,
then
remove
the
PICK
UP
BLOCK.
5)
Proceed
in
the
reverse
order
for
installation
but
never
unsolder
the
shorted
part
before
connecting
the
three
connectors.
Note:
To
protect
the
laser
diode
from
damage
caused
by
high
voltage
static
electricity,
a
part
of
the
PCB
on
the
PICK
UP
BLOCK
has
to
be
shorted
before
disconnecting
the
connectors.
After
replacement,
be
sure
to
connect
the
two
connectors
and
then
remove
the
solder
at
the
shorted
part
before
turning
the
power
ON.
raceme
SERVICE
MANUAL
3-2.REPLACEMENT
OF
THE
SLED
MOTOR
1)
Remove
the
TRAVERSE
MECHA
(refer
to
section
3-1).
2)
Unsolder
the
leads
of
the
SLED
and
SPINDLE
MOTORs
then
remove
the
MOTOR
PCB.
" MOTOR PCB
SLED MOTOR SLED MOTOR
RETAINING SCREW @)
Fig. 3-3
3)
Remove
the
SLED
MOTOR
RETAINING
®
SCREWS,
then
replace
the
SLED
MOTOR.
4)
Reassemble
in
the
reverse
order.
About the SPINDLE MOTOR:
Replacement
of
the
SPINDLE
MOTOR
itself
is
not
recommended
because
the
adjustment
of
the
TURN
TABLE
height
is
quite
critical
and
requires
the
use
of
a
special jig.
3-3.
REPLACEMENT
OF
THE
PICK
UP
BLOCK
1)
Remove
the
TRAVERSE
MECHA
(refer
to
section
3-1).
2)
Push
the
@
stopper
in
the
right
direction
and
pull
the
SLIDE
SHAFT
in
the
forward
direction
to
remove
the
PICK
UP
BLOCK,
then
replace
the
PICK
UP
BLOCK.
PICK UP BLOCK
(A) STOPPER
Fig. 3-4
3) Reassemble in the reverse order.

Akai AX-890 Specifications

General

Brand	Akai
Model	AX-890
Category	Stereo System
Language	English