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Use of controls or adjustments or performance of procedures other
than those specified herein may result in hazardous radiation exposure.
Danger:
The serviceman should not remove the cover of drive unit and should not service because the drive
unit is a nonserviceable parts. Please check that the labels.
Never touch the internal parts in order to avoid EXPOSURE TO VISIBLE LASER RADIATION.
Unplug the AC power cord to the equipment when opening the top cover.
When the power switch is On, do not place your eyes close to the front panel opening door or the
other openings to look into the interior unit.
LASER Specification
Class I level A LASER Product (Class 1 level A LASER Product)
Wave Length: 647 - 677 nm (at DVD)
775 - 815 nm (at CD)
Laser Power: No hazardous radiation is emitted with the safety protection.
1.2. PRECAUTION OF LASER DIODE
CAUTION:
This unit utilizes a class III a laser. Visible laser radiation is emitted from
the optical pickup lens when the unit is turned on:
1. Do not look directly into the pickup lens.
2. Do not use optical instruments to look at the pickup lens.
3. Do not adjust the preset variable resistor on the optical pickup.
4. Do not disassemble the optical pickup unit.
5. If the optical pickup is replaced, use the manufactures specified
replacement pickup only.
6. Use of control or adjustment or performance of procedures other than
those specified herein may result in hazardous radiation exposure.
2. PREVENTION OF ELECTRO-STATIC DISCHARGE
(ESD) TO ELECTROSTATICALLY SENSITIVE (ES)
DEVICES
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such
components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES
devices are integrated circuits, some field-effect transistorsand semiconductor "chip" components.
The following techniques should be used to help reduce the incidence of component damage caused
by electrostatic discharge (ESD).
1. Immediately before handling any semiconductor component or
semiconductor-equipped assembly, drain off any ESD on your body by
touching a known earth ground. Alternatively, obtain and wear a
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