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*SAFETY
INSTRUCTIONS
PRECAUTIONS
DURING
SERVICING
1. Parts identified by the .' (%) symbol are critical for
safety. Replace them only with the parts number speci-
fied.
2.\n 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 selec-
tor 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
barriers)
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 termi-
nals before soldering.
oho I*
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, soider drop-
lets, etc.) do not remain inside the set.
MAKE
YOUR
CONTRIBUTION
TO
PRO-
TECT THE ENVIRONMENT
Used batteries with the ISO symbol
for recy-
LAY.
cling as well as small accumulators
(recharge-
able batteries), mini-batteries (cells) and starter
batteries should not be thrown into the garbage can.
Please
leave
them
at an
appropriate
depot.
All other
household batteries can be thrown out with the household
waste.
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
be-
tween
accessible
metal
parts (such as chassis, ground
terminal,
microphone
jacks,
signal
input/output
connec-
tors, etc.) and the earth ground through a resister 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 2.2 M Ohms.
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 ex-
tremely 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 nar-
row 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 illustra-
tion.
2"
GNO
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,
UK and AUSTRALIA]
CLASS 1.
LASER PRODUCT
KLASSE 1 LASER PRODUKT
LUOKAN 1 LASER LAITE
KLASS 1
Label affixed on the rear pane! of the unit
CAUTION ; evwvisiace LASER RADIATION WHEN OPEN
AND INTERLOCKS DEFEATED
AVOID EXPOSURE TO BEAM
ADVARSEL ; usyaiiG LASERSTRALING VED AB.
NING NAR SIKKE RHE DSAF BRY DERE ERUOE
AF FUNK TION
UNDGA UDSA TTELSE FOR STRALING
VARO | avarracssa
34 SUOJALUKITUS
OnTET-
TAESSA OLET AL TTANA NAKYMATIOMALLE LASERSATE!
UYLLE
ALA KATSO SATEESEEN'
VARNING | OS¥AtG LASERSTRALNING NAR DENNA
DEL AR OPPNAD OCH SPARREN AR URKOPPLAD
BETRAKTA EJ STRALEN
SERVICE MANUAL ———————__-—______
3
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