Panasonic PT VX400NTU - Manual (Page 16)

Precautions for Use
16
- ENGLISH
Important
Information
Cautions on use
In order to get the picture quality
J
Draw curtains or blinds over windows and turn off any lights near the screen to prevent outside light or light z
from indoor lamps from shining onto the screen.
Depending on where the projector is used, heated air from an exhaust port or warm or cold air from an air z
conditioner can cause a shimmering effect on screen.
Avoid use in locations where exhaust or streams of air from projector, other devices and air conditioners flow
between the projector and the screen.
The lens of projector is affected by the heat from the luminous source. Because of this, the focusing may z
not be stable right after the power is turned on. Focusing is stabled after projecting image for 30 minutes and
longer.
Do not touch the surface of the projector lens with your bare hand.
J
If the surface of the lens becomes dirty from fingerprints or anything else, this will be magnified and projected
onto the screen.
LCD Panel
J
The display unit of this projector comprises three LCD panels. Although an LCD panel is a product of high-
precision technology, some of the pixels on the projected image may be missing or constantly lit. Please note that
this is not a malfunction.
Displaying a still image for a longer time may result in an after-image on the LCD panels. If this happens, display
the all white screen in the test pattern for an hour or more.
Optical components
J
Operating the projector in an environment with high temperature or heavy exposure to dust or tobacco smoke
will reduce the service life of the optical components, such as the LCD panel and polarizing plate, and may
necessitate their replacement within less than one year of use. For details, consult your dealer.
Lamp
J
The luminous source of the projector is a mercury lamp with high internal pressure.
A high pressure mercury lamp has following characteristics.
The brightness of the lamp will decrease by duration of usage. z
The lamp may burst with sound or shorten life by shock or chipping. z
The life of the lamp varies greatly depending on individual specificities and usage conditions. In particular, z
continuous use over 12 hours and frequent on/off switching of the power greatly deteriorate the lamp and
affect the lamp life.
In rare cases, the lamp burst shortly after the projection. z
The risk of bursting increases when the lamp is used beyond its replacement cycle. Make sure to replace the z
lamp unit consistently. (“When to replace the lamp unit” ( Æ page 68))
If the lamp bursts, gas contained inside of the lamp is released in a form of smoke. z
It is recommended to store replacement lamps for contingency. z
It is recommended to have authorized engineer or your dealer replace the lamp unit. z
<Software information regarding this product>
© Panasonic Corporation 2011
This product incorporates the following software:
(1)the software which is developed independently by or for Panasonic Corporation
(2)the software which is licensed under the GNU GENERAL PUBLIC LICENSE,
and
(3)the software which is licensed under the GNU LESSER GENERAL PUBLIC LICENSE.
For the software categorized as (2) and (3), the license is available in accordance with GNU GENERAL PUBLIC LICENSE and GNU LESSER GEN-
ERAL PUBLIC LICENSE respectively. As for the terms and conditions, please refer to the software licence of the supplied CD-ROM.
If you wish to ask any questions as to the software, please contact ([email protected]) by email.
Pursuant to at the directive 2004/108/EC, article 9(2)
Panasonic Testing Centre
Panasonic Service Europe, a division of Panasonic Marketing Europe GmbH
Winsbergring 15, 22525 Hamburg, F.R. Germany