Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair
If you are not qualified to perform the repair of this product properly and
and refer the repair to a qualified service technician.
This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of
California to cause cancer
Health & Safety Code Section 25249.6 - Proposition 65
This product contains mercury. Disposal of this material may be regulated due to environmental considerations.
For disposal or recycling information, please contact your local authorities or the Electronics Industries
1. Safety Precautions for those who Service this Unit.
• Follow the adjustment steps in the service manual when servicing this unit. When check
ing or adjusting the emitting power of the laser diode exercise caution in order to get safe, reliable results.
1. During repair or tests, minimum distance of 13 cm from the focus lens must be kept.
2. During repair or tests, do not view laser beam for 10 seconds or longer.
The AEL (accessible emission level )of the laser power output is less than CLASS 1
but the laser component is capable of emitting radiation exceeding the limit for
A specially instructed person should do servicing operation of the apparatus.
Laser diode characteristics
DVD:640 nm to 660 nm
CD:770 nm to 810 nm
DVD : 2.48 mW(Emitting period :9 sec.)
CD : 705 W(Emitting period : unlimited)
Additional Laser Caution
Transistors Q1101 and Q1102 in PCB drive the laser diodes for DVD and CD
respectively. When Q1101 or Q1102 is shorted between their terminals,
the laser diodes for DVD or CD will radiate beam. If the top cover is removed
with no disc loaded while such short-circuit is continued, the naked eyes may
be exposed to the laser beam.
Danger of explosion if battery is incorrectly replaced.
Replaced only with the same or equivalent type recommended by the manufacture.
Discord used batteries according to the manufacture's instructions.
can adversely affect the
and reliability of the product and may void the
, you should not risk trying to do so