Recommendations on Operation
of Multimedia Projectors
cleaned periodically. For projection lens cleaning should be used only a
soft dry cloth and a non-abrasive camera lens cleaner. Avoid
using an excessive amount of cleaning agent and do not apply the
cleaner directly to the lens. Abrasive cleaning agents, solvents and
other caustic chemicals will damage the lens!
the cleaning cloth over the lens in circular motion. When your projector is
turned off please obligatory cover the lens with the cap.
it is explicitly prohibited to turn on the
projector with the lens covered, as it may damage LCD-matrixes or DLP-chip
of your projector.
filter (if it is foreseen by the design of your projector) catches dust and the other particles in the air preventing dust formation
on the projector lens and projector mirror surfaces. If the filters become
clogged the efficiency of the cooling fans is then decreased which consequently
leads to overheating of the projector’s inner components and reduces its service
life. Bridged filters prevent cooling of the projector to the required
temperature. Projector air filters require cleaning once in 50 - 100 hours
of work (depending on a model and a manufacturer – see Operation
Manual of your projector).
can be cleaned with a brush, a vacuum cleaner (on low power obligatory),
or it can be washed from dust and dirt (only if the latter is
mentioned in your Operation Manual). Before cleaning air filters please
obligatory turn off your projector and disconnect power cable from the socket.
Once the air filter is positioned back, make sure it tightly fits.
- it is strictly prohibited to operate the projector with the air filters
removed. The DLP-chip or LCD-matrixes and the mirror will be covered with dust,
which will cause low image quality and malfunctioning of your projector. Do not
permit ingress of any objects into the projector’s fan slots. That may result in
damaging of your projector.
-it is explicitly prohibited to place the projector on a tablecloth or any other
soft fabric, as it may cause blockage of your projector’s vents. Locate the
projector in a well-ventilated area without any obstructions to intake or
It is not
recommended to operate a projector in dusty and smoke containing areas. Such
conditions do not favor high quality images. In case a projector is operated in
such areas dust is accumulating on the LCD panels / DLP-chip and the lens, and
its shadow is being projected on the screen together with the image. In case the
a.m. symptoms appear, apply to an official dealer or service center for
While choosing the video equipment it is necessary to take
into account, that a conventional VHS video recorder has the maximal resolution
of only 240 TV lines (TVL), S-VHS video recorders and video cameras - 400 TVL.
For the high quality reproduction of a video signal it is strictly recommended to acquire a DVD-player with component (Y, Pb, Pr)and/or HDMI (High Definition Multimedia Interface) output and progressive scan not lower than HDTV 720ð Standard ( we recommended 1,080ð).
projection lamp has limited life time (in average – 1,500 – 2,000 hours and
manufacturing guarantee for a lamp is usually 30 – 180 calendar days - depending
on a model and a manufacturer - from the date of purchase*) and closer to the
end its brightness is noticeably decreasing. To prolong the lamp life time it is
necessary to let it cool down properly while turning off your projector. For
that please strictly follow the projector’s shut down procedure described in
your Operation Manual . Please in any case wait until the built-in projector’
fans are stopped.
after that your projector can be disconnected from the socket.
Violation of the projector disconnection proper order considerably reduces the
lamp life time as well as may damage your projector.
strictly prohibited to turn on during the first 3 hours a projector, carried
from the cold area into the warm room.
– practically all the projection lamps are end-user replaceable.
- Place your projector only in a horizontal position. It is strictly
forbidden to establish a deviation angle of the projector more than adjusting
feet of the device allow as it may end in blowing up of the projection lamp.
4. Power Supply
into account the current local electricity supply conditions and in order to
avoid damaging of the expensive projection lamp it is highly recommended to
supply power via Uninterruptible Power Source (UPS). It should be at the minimum – line-interactive type (on-line type is advisable).
In highlands conditions (El. > than 1500m above the sea
level) power supply via UPS is compulsory - to let the supplier fulfill his
Follow these instructions to help ensure
image quality and lamp life over the life of the projector. Failure to follow
these instructions may affect the warranty.
5.*Rights of a customer on WARRANTY SERVICE are abolished in the following cases
1.Usage of the equipment claimed against by a Customer;
2. Provision of works not stipulated in the Operation Manual for that
particular model of equipment;
3. Repair of the equipment delivered on one’s own;
4. Disassembly or any other outside interference in the construction of the
device without a special permission of the Supplier’s representative;
5. Admittance to operation of the equipment of the non-trained personnel;
6. Mechanical damage of the equipment and traces of influence of the
chemicals not stated in the Operation Manual for that particular device;
7. Malfunctions caused by non-provision of the operational parameters of
power supply and necessary environmental conditions stated in the Operation
8. Malfunctions caused by force major circumstances (fire, natural disasters,
to top..< /p>