Technics SL-PS900 Service Manual

SL-PS900
Mi
HANDLING
PRECAUTIONS
FOR
OPTICAL
PICKUP
The
laser
diode
in
the
optical
pickup
may
break
down
due
to
potential
difference
caused
by
static
electricity
of
clothes
or
human
body.
So,
be
careful
of
electrostatic
breakdown
during
repair
of
the
optical
pickup.
pencanes
5
1.
Handling of optical pickup
Do not subject the optical pickup to static electricity
as it is extremely sensitive to electrical shock.
2. To prevent the breakdown of the laser diode, an
antistatic shorting pin is inserted into the flexible
board (FPC board).
When removing or connecting the short pin, finish
the job in as short time as possible.
3. Take care not to apply excessive stress to the
flexible board (FPC board).
4. Do not turn the variable resistor (laser power
adjustment). It has already been adjusted.
¢ Grounding for electrostatic breakdown
prevention
1. Human body grounding
Use the anti-static wrist strap to discharge the
Static electricity from your body.
2. Work table grounding
Put a conductive material (sheet) or steel sheet on
the area where the optical pickup is placed, and
ground the sheet.
Caution:
The static electricity of your clothes will not be
grounded through the wrist strap. So, take care not
to
let your clothes touch the optical pickup.
Shorting pin
were cen ay
Clip
wesw eee
Be sure to short this position
(Use the shorting pin or clip.)
Optical pickup
FPC board
(Handle it carefully)
Variable resistor (Do not turn)
Wrist strap
(Anti-static bracelet)
MQ
tron plate or some metals
to conduct electricity
li INSTRUCTIONS FOR TRAVERSE OIL (Part No. $2Z0L31)
The container contains 6g (approx. 3mi) of oil.
One application (one shaft) uses 0.05mi of oil.
How to Use
(1)
(2)
(3)
(4)
Remove the guide shaft in the traverse deck from
the optical pickup and clean off any dust from the
guide shaft.
Apply
one
drop
of
the
SZZOL31
to
the
tip
of
the
guide
shaft.
Hold
the
guide
shaft
so
that
its
oiled
end
touches
the
optical
pickup
and
insert
it
into
the
bearing
while
rotating
it slowly.
After
securing
the
guide
shaft,
move
the
optical
pickup
by
hand
several
times
to
the
left
and
right
to
distribute
the
oil
on
the
guide
shaft.
St
Optical pickup
Guide shaft

Technics SL-PS900 Specifications

General

Brand	Technics
Model	SL-PS900
Category	CD Player
Language	English