Yamaha PianoCraft DRX-730 Owner's Manual page 4

Caution: Read this before operating your unit.
1. To assure the finest performance, please read this manual
carefully. Keep it in a safe place for future reference.
2. Install this sound system in a well ventilated, cool, dry, clean
place – away from direct sunlight, heat sources, vibration,
dust, moisture, and/or cold. Allow ventilation space of at
least 10 cm on the top, 10 cm on the left and right, and 10 cm
on the back of this unit.
3. Locate this unit away from other electrical appliances,
motors, or transformers to avoid humming sounds.
4. Do not expose this unit to sudden temperature changes
from cold to hot, and do not locate this unit in an
environment with high humidity (i.e., a room with a
humidifier) to prevent condensation inside this unit, which
may cause an electrical shock, fire, damage to this unit,
and/or personal injury.
5. Avoid installing this unit where foreign objects may fall onto
this unit and/or this unit may be exposed to liquid dripping
or splashing. On the top of this unit, do not place:
— Other components, as they may cause damage and/or
discoloration on the surface of this unit.
— Burning objects (i.e., candles), as they may cause fire,
damage to this unit, and/or personal injury.
— Containers with liquid in them, as they may fall and
liquid may cause electrical shock to the user and/or
damage to this unit.
6. Do not cover this unit with a newspaper, tablecloth, curtain,
etc., in order not to obstruct heat radiation. If the
temperature inside this unit rises, it may cause fire, damage
to this unit, and/or personal injury.
7. Do not plug in this unit to a wall outlet until all connections
are complete.
8. Do not operate this unit upside-down. It may overheat,
possibly causing damage.
9. Do not use force on switches, knobs and/or cords.
10. When disconnecting the power cable from the wall outlet,
grasp the plug; do not pull the cable.
11. Do not clean this unit with chemical solvents; this might
damage the finish.
12. Only voltage specified on this unit must be used. Using this
unit with a higher voltage than specified is dangerous and
may cause fire, damage to this unit, and/or personal injury.
Yamaha will not be held responsible for any damage
resulting from use of this unit with a voltage other than
specified.
13. To prevent damage by lightning, keep the power cord
disconnected from a wall outlet or the unit during a
lightning storm.
14. Do not attempt to modify or fix this unit. Contact qualified
Yamaha service personnel when any service is needed. The
cabinet should never be opened for any reasons.
15. When not planning to use this unit for long periods of time
(i.e., vacation), disconnect the AC power plug from the wall
outlet.
16. Install this unit near the AC outlet and where the AC power
plug can be reached easily.
17. Be sure to read the "Troubleshooting" section in the owner's
manual on common operating errors before concluding that
this unit is faulty.
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18. Before moving this unit, press STANDBY/ON to set the unit
in standby mode, then disconnect the AC power plug from
the AC wall outlet.
19. The batteries shall not be exposed to excessive heat such as
sunshine, fire or like.
20. Excessive sound pressure from earphones and headphones
can cause hearing loss.
This unit is not disconnected from the AC power source as
long as it is connected to the wall outlet, even if this unit itself
is turned off. This state is called the standby mode. In this
state, this unit is designed to consume a very small quantity of
power.
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DANGER
This unit emits visible laser radiation when open. Avoid direct
eye exposure to beam. When this unit is plugged into the wall
outlet, do not place your eyes close to the opening of the disc
tray and other openings to look into inside.
The laser component in this product is capable of emitting
radiation exceeding the limit for Class 1.
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LASER SAFETY
This unit employs a laser. Due to possible eye injury, only a
qualified service person should remove the cover or attempt to
service this device.
LASER
Type Semiconductor laser AlGaInP
Wave length 655 nm (DVD)
790 nm (VCD/CD)
Output Power 5 mW (DVD)
7 mW (VCD/CD)
Beam divergence 20 degree
WARNING
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR
MOISTURE.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.