NEC NC900C Installation Manual page 5

3. Turn off the projector, unplug the power cable and have
the projector serviced by a qualified service personnel
under the following conditions:
• When the power cable or plug is damaged or frayed.
• If liquid has been spilled into the projector, or if it has
been exposed to rain or water.
• If the projector does not operate normally when you
follow the instructions described in this user's
manual.
• If the projector has been dropped or the cabinet has
been damaged.
• If the projector exhibits a distinct change in perfor-
mance, indicating a need for service.
4. Keep any items such as magnifying glass out of the light
path of the projector. The light being projected from the
lens is extensive, therefore any kind of abnormal objects
that can redirect light coming out of the lens, can cause
unpredictable outcome such as fire or injury to the eyes.
5. When using a LAN cable:
For safety, do not connect to the connector for peripheral
device wiring that might have excessive Voltage.
6. Do not look into the lens while the projector is on. Serious
damage to your eyes could result.
7. Do not try to touch the air outlets on the projector during
normal projector operation as it is hot.
Cleaning
1. Turn off the projector and unplug the power cable before
cleaning the cabinet or replacing the lamp.
2. Clean the cabinet periodically with a cloth. If heavily
soiled, use a mild detergent. Never use strong deter-
gents or solvents such as alcohol or thinner.
3. Use a blower or lens paper to clean the lens, and be
careful not to scratch or mar the lens.
4. Do not touch the projector or the power plug with wet
hand. Doing so can cause electrical shock or fire.
CAUTION:
1. Do not unplug the power cable from the wall outlet or
projector when the projector is powered on.
Doing so can damage the projector.
• While projecting images
• While cooling after the projector has been turned off.
(The POWER button LED blinks in green while the fan
is rotating, and "cooling..." is displayed on the LCD
screen. The cooling fan continues to work for 90
seconds.)
2. Do not turn of the AC power for 90 seconds after the
lamp is turned on and while the POWER indicator is
blinking green. Doing so could cause premature lamp
failure.
3. Use of a wall outlet with a 20 A or more circuit breaker
is recommended.
Caution on Carrying the Projector/Handling the Optional
Lens
When shipping the projector with the lens, remove the lens
before shipping the projector. Always attach the dust
cap to the lens whenever it is not mounted on the projector.
The lens and the lens shift mechanism may encounter dam-
age caused by improper handling during transportation.
Backing up authentication data
• In order to backup the authentication data needed to
receive cinema video signals, a secondary battery is used
inside the projector. If you have not used the projector at
all for 6 months or more, the battery will lose power and the
authentication data will not be able to be backed up.
Always put the projector into standby mode for at least 48
hours once every 6 months to recharge the battery.
Handling the Battery
• Take care when handling the battery, as it could cause fire,
injury, or damage to surrounding objects.
- Do not short out, dismantle, or place batteries in a fire.
- Do not use the battery other than as designated.
- Ensure that you have the batteries' polarity (+/-) aligned
correctly.
• Dispose of used batteries according to your local
regulations.
• There is a battery mounted on the electronic circuit board
within the main unit. When disposing of the main unit, do
not dismantle the device or remove the internal circuit
board, and contact the shop where you purchased the
product or your local government agency.
Important Information
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