NEC NP70CM Guide

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1
Ceiling Mount Unit
Installation and Adjustment Manual
Thank you for your purchase of this NEC ceiling mount unit.
Please readthis installation and adjustment manual carefully to ensure proper use.
The Ceiling Mount Unit NP70CM is exclusivelyfor Projector NEC PX700W, PX750U, PX800X
and cannot be used for other projectors.
Special skills are required to install the projector. This work
should never be performed by the customer.
To the Dealer andInstaller
To ensure customer safety, we ask that the installation work to
be started after careful attention is paid to the strength of the
mounting location to ensure it will withstand the weight of the
projector and mounting hardware.
CONTENTS
Please heed the following .....................................................1, 2
Warning…………………………………………………………...2, 3
Packaged Parts......................................................................4
Mounting the Projector ..........................................................5
Specifications ........................................................................7

2
Pleaseheed the following
Symbol
In this “Installation and Adjustment Manual”, to ensure the safe and proper use of the product,
prevent harm to yourself and others and damage to property, various symbols are used. The
symbols and meanings are as follows. Please read this manual after ensuring the contents are well
understood.
Warning
Caution
Improper handling and ignoring this indication may result in
bodily harm such as death, serious injury and so on.
Improper handling and ignoring this indication may result in
bodily injury and damage to surrounding contents.
Examples of symbols:
Symbol alerts to cautions (including warnings).
Concrete cautions are specified in figures.
Symbol expresses prohibited actions
Concrete prohibitions are specified in figures.
Symbol expresses compulsory actions.
Concrete instructions are specified in figures.
W a r ning
• Wheninstalling the projector and adjusting the projection position, be sure to do so
as explained in this manual. The projector may fall and cause injury if installed and
adjusted improperly.
• To prevent the projector from falling, install it in a location and fasten it so as to ensure
sufficient strength to support the combined weight (about 28 kg) of the projector (about
21kg), the ceiling mount unit (about 7 kg) and so on for an extended period as well as
to withstand earthquakes. Insufficient strength or fastening may result in the projector
falling and causing injury.
Be sure to observe the following precautions:
* Use M6 (1/4 inch) for the ceiling fixation bolts or screws.
* Use an outlet for the power source of the projector. Do not directly connect to the
lamp line because this is dangerous. Also, use an accessible outlet so that you can
connect and disconnect the power plug.
• Mounting on a wooden ceiling
Ensure the load is mounted on a robust constructional material. If the strength of the
constructional material is insufficient, please reinforce it. Do not mount on ceiling
finishing material, furring strip etc.
• Mounting on a concrete ceiling
Use a commercial anchor bolt M6 (1/4 inch), anchor nuts and similar, which will bear
the load of the projector.

3
Warning
• Do not install in places subject to constant vibration. Extended vibration may cause
loosening of the screws and result in the Ceiling Mount Unit and projector falling and
causing injury. Also, it may cause breakdown of the projector.
• To ensure safety,be sureto tighten the bolts, screws and adjustingknobs securely
Failure to do so mayresult in the projector falling and causing injury.
• Donot modify anyparts. Doing somayresultin the projector andthe CeilingMount
Unit falling and causing injury.
• Do not use broken parts. Doing so may result in the projector and the Ceiling Mount
Unit falling and causing injury. If a part should break, consult your dealer.
• Do not look into the mirror when the projector isturned on. Doing socould damage
your eyesight.
• Do not hang from the projector and the Ceiling Mount Unit. Doing somay result in the
projector and the Ceiling Mount Unit falling and causinginjury. Beespecially careful
of children.
• Donot use adhesive for the locking screws,lubricating agent, oiland so onfor the
Ceiling adapter. Doing somaycause the material of the Ceiling adapter to deteriorate
and result in the projector falling and causing injury.
Caution
• Do not obstruct the projector’s ventilation holes. Doing so will prevent the dissipation
of heat and may result in fire. In particular, do not use the projector in the following
ways:
Installing the projector in a place such aswall and so on where ventilation is poor,
covering it, etc.
• Donot install the projector in front of the outlets of anairconditioner or heater or in a
place exposed to significant vibrations. Doing so may result in fires and electric shock.
• Do not install the projector in humid or dusty places or those exposed to greasy
smoke or steam (such as near cooking equipment or humidifiers). Doing so may result
When installing the projector, leave sufficient space between it and surrounding objects.
Failure to do so will prevent the dissipation of heat and may result in fires.
Please:
Avoid rooms with significant dust, humidity, greasy smoke, or tobacco smoke.
Dirt will adhere to the optical parts such as mirrors, which will cause image quality to
deteriorate.
• Avoid places in which the screen is exposed to direct sunlight or illuminated light.
When surrounding light directly hits the screen, the image appears washed out and is difficult to
view.
• Avoid locations exposed to particularly high or low temperatures.
Doing so may result in breakdown. (For the ambient operating temperature, seethe user’s
manual included with the projector.)

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Rev. A