SAFETY INSTRUCTIONS
PRECAUTIONS DURING SERVICINGThe leakage-current should be less than 0.5mA rms AC.
The resistance measurement should be done between
1. Parts identifide by the ( )symbol parts are critical
for safety. Replace only with parts number specified.accessible exposed metal parts and power cord plug
prongs with the power switch (if included) "ON". The
2. In addition to safety, other parts and assemblies are
specified for conformance with such regulations asresistance should be more than 2.2M Ohms.
those applying to spurious radiation.PRECAUTIONS IN REPAIRING
These must also be replaced only with specifideWhen repairing or adjusting the unit, please note the
replacements.following points.
Examples :RF converters, tuner units, antenna1. Do not put excessive pressure on the mechanical
selectswitches, RF cables, noise blocking capacitors,part (operation part), including the pick-up block, as
noise blocking filters, etc.extremely high mechanical precision is required in
3. Use specified internal wiring. Note especially :these parts.
1) Wires covered with PVC tubing2. When the base is removed for repair adjustment,
2) Double insulated wiresmake sure that there are no metal obiects in the
3) High voltage leads
narrow gap between the P. C. board or the mecha
4. Use specified insulating materials for hazardous liveparts and the base
parts. Note especially:3. The Micro-Computer and the CD signal processing
1) Insulation TapeICs can be damaged by static electricity or leakage
2) PVC tubingfrom a soldering iron during repairing. While
3) Spacers(insulating barriers)soldering, please take the precautions against
4) Insulation sheets for transistorsleakage as in the illustration.
5) Plastic screws for fixing micro switches
5. When replacing AC primary side components
(transformers, power cords, noise blocking
capacitors, etc.), wrap ends of wires securely about
the terminals before soldering.
GND
6. Make sure that wires to do not contact heat4. Do not loosen any screws in the pick-up block.
producing parts (heat sinks, oxide metal film
When handing the pick-up block, please refer to the
resistors, fusible resistors, etc.).points to NOTE when replacing the pick-up block.
7. Check that replaced wires do not contact sharp5. Keep safety for hazardous invisible Laser Radiation,
edged or pointed parts.DO NOT watch the Laser Beam (Objective lens)
8. Also check areas surrounding repaired locations.directly.
9. Make sure that foreign objects (screws, solder6. Models for some countries, laser warning labels are
droplets, etc.) do not remain inside the set.affixed on the unit and inside of the unit, as shown
MAKE YOUR CONTRIBUTION TO PROTECTbelow. Read it carefully for your safety, when
repairing or adjusting the unit.
THE ENVIRONMENT
Used batteries with the ISO symbol for recycling
as well as small accumulators (rechargeable
batteries), mini-batteries (cells) and starter
batteries should not be thrown into the garbage
can.
Please leave them at an appropriate depot. All other house-
hold 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
between accessible metal parts (such as chassis,
ground terminal, microphone jacks, signal input/output
connectors, etc.) and the earth ground through a
resister of 1500 ohms paralleled with a 0.15
capacitor, under the unit's normal working conditions.
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ACEC
