Panasonic SLPR300 - CD RECORDER, Руководство по обслуживанию

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3. Handle the flexible cable carefully as it may break when subjected
to strong force.
4. It is not possible to adjust the semi-fixed resistor that adjusts the
laser power. Do not turn it
7. Precautions for Service
[Handling of Traverse Unit and Laser Pickup]
1. Do not touch any peripheral element of the pickup or the actuator.
2. The traverse unit and the pickup are precision devices and
therefore must not be subjected to strong shock.
3. Do not use a tester to examine the laser diode. (The diode can
easily be destroyed by the internal power supply of the tester.)
4. To replace the traverse unit, pull out the metal short pin for
protection from charging.
5. When replacing the pickup, after mounting a new pickup, remove
the solder on the short land which is provided at the center of the
flexible wire to open the circuit.
6. Half-fixed resistors for laser power adjustment are adjusted in
pairs at shipment to match the characteristics of the optical block.
Do not change the setting of these half-fixed resistors for laser
power adjustment.
7. New pickup is shorted by soldering the land which is provided at
the part n of the flexible board on the underside of it.
After completing the rapair, remove the solder to open the circuit.
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