Akai AX-890 User Manual

*& SAFETY INSTRUCTIONS
PRECAUTIONS
DURING
SERVICING
_
1.
Parts
identified
by
the
A\
(*)
symbol
are
critical
for
safety.
Replace
them
only
with
the
parts
number
specified.
2.
In
addition
to
safety,
other
parts
and
assemblies
are
specified
for
conformance
with
such
regulations
as
those
applying
to
spurious
radiation.
These
must
also
be
replaced
only
with
the
specified
replacements.
Examples:
RF
converters,
tuner
units,
antenna
selector
switches,
RF
cables,
noise
blocking
capacitors,
noise
blocking
filters,
etc.
3.
Use
specified
internal
wiring.
Note
especially:
1) Wires covered with PVC tubing
2) Double insulated wires
3) High voltage leads
4.
Use
specified
insulating
materials
for
hazardous
live
parts.
Note
especially:
1) Insulation Tape
2) PVC tubing
3) Spacers (insulating barrier)
4) Insulation sheets for transistors
5)
Plastic
screws
for
fixing
micro
switches
__
5.
When
replacing
AC
primary
side
components
(trans-
formers,
power
cords,
noise
blocking
capacitors,
etc.),
wrap
the
ends
of
the
wires
securely
around
the
terminals
before
soldering.
Yo
b=
Ie
6.
Make
sure
that
wires
do
not
contact
heat
producing
parts
(heat
sinks,
oxide
metal
film
resistors,
fusible
resistors,
etc.).
7.
Check
that
replaced
wires
do
not
contact
sharp
edged
or
pointed
parts.
8.
Also
check
areas
surrounding
repaired
locations.
9.
Make
sure
that
foreign
objects
(screws,
solder
droplets,
ete.)
do
not
remain
inside
the
set.
SAFETY
CHECK
AFTER
SERVICING
After
servicing,
make
measurements
of
leakage-current
or
resistance
in
order
to
determine
that
exposed
parts
are
acceptably
insulated
from
the
supply
circuit.
The
leakage-
current
measurement
should
be
done
between
accessible
metal
parts
(such
as
chassis,
ground
terminal,
microphone
jacks,
signal
input/output
connectors,
etc.)
and
the
earth
ground
through
a
resistor
of
1500
ohms
paralleled
with
a
0.15
uF
capacitor,
under
the
unit's
normal
working
conditions.
The
leakage-current
should
be
less
than
0.5
mA
rms
AC.
The
resistance
measurement
should
be
done
between
accessible
exposed
metal
parts
and
power
cord
plug
prongs
with
the
power
switch
(if
included)
“ON”.
The
resistance
should
be
more
than
2.2M
Ohms.
nen
SERVICE
MANUAL
MAKE
YOUR
CONTRIBUTION
TO
PROTECT
THE ENVIRONMENT
Used
batteries
with
the
ISO
symbol
for
recycling
as
well
as
small
accumulators
(rechargeable
batteries),
KY
mini-batteries
(cells)
and
starter
batteries
should
not
be
thrown
into
the
garbage
can.
&
Please
leave
them
at
an
appropriate
depot.
PRECAUTIONS
IN
REPAIRING
When
repairing
or
adjusing
the
unit,
please
note
the
following
points.
1.
Do
not
put
excessive
pressure
on
the
mechanical
part
(operation
part),
including
the
pick-up
block,
as
extremely
high
mechanical
precision
is
required
in
these
parts.
2.
When
the
base
is
removed
for
repair
or
adjustment,
make
sure
that
there
are
no
metal
obiects
in
the
narrow
gap
between
the
P.C.
board
or
the
mecha
parts
and
the
base.
3.
The
Micro-Computer
and
the
CD
signal
processing
ICs
can
be
damaged
by
static
electricity
or
leakage
from
a
soldering
iron
during
repairing.
While
soldering,
please
take
the
precautions
against
leakage
as
in
the
illustration.
4.
Do
not
loosen
any
screws
in
the
pick-up
block.
When
handling
the
pick-up
block,
please
refer
to
the
points
to
NOTE
when
replacing
the
pick
up
block.
5.
To
avoid
hazardous
invisible
Laser
Radiation,
DO
NOT
look
at
the
Laser
Beam
(Objective
lens)
directly.
6.
On
models
for
some
countries,
laser
warning
labels
are
affixed
on
the
unit
and
inside
of
the
unit,
as
shown
below.
For
your
safety,
read
these
labels
carefully
when
repairing
or
adjusting
the
unit.
[EUROPE,
SCANDINAVIA,
U.K.
and
AUSTRALIA]
CLASS 1. LASER PRODUCT
KLASSE 1 LASER fave
LUOKAN 1 LASER LAITE
KLASS 1 LASER APPARAT
Label affixed on the rear panel of the unit.
CAUTION ; invisiat€ LASER RADIATION WHEN OPEN
ANOINTERLOCKS
DEFEATED
AVOID
EXPOSURE
TOBEAM.
ADVARSEL ; usYNUG LASEASTRALING VED. AB-
NING
NAR
SIKKERHEOSAFBRYOERE
ER
UDE
AF
FUNK
TION
UNDGA UDSATTELSE FOR STAALING.
VARO
|
AVATTAESSA
JA
SUQUALUKITUS
OFITET-
eon
OLET
ALTTINA
NAKYMATTOMALLE
LASERSATE)-
ree KATSO SATEESEEN '
VARNING , OSYNUG LASERSTRALNING NAR DENNA
NAD OCH SPARREN AR URKOPPLAD
DEL
GETRAKTA EJ STRALEN
Label
affixed
on
the
reverse
side
of
the
rear
panel
of
the
unit
(except
[U
fu]
model).

Akai AX-890 Specifications

General

Brand	Akai
Model	AX-890
Category	Stereo System
Language	English