Panasonic PT-MZ670, Руководство по эксплуатации

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Chapter 1 Preparation — Precautions for use
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Cautions on use
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To get a good picture quality
In order to view a beautiful image in higher contrast, prepare an appropriate environment. Draw curtains or blinds
over windows and turn off any lights near the screen to prevent outside light or light from indoor lamps from
shining onto the screen.
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Do not touch the surface of the projection lens with your bare hands.
If the surface of the projection lens becomes dirty from fingerprints or anything else, this will be magnified and
projected onto the screen.
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LCD panel
The LCD panel is manufactured by a technology with extremely high precision, but there may be missing pixels or
pixels that is constantly illuminated in a rare case. Note that these phenomenon are not malfunction.
Also, a residual image may remain in the image of the LCD panel when a still image is projected for long time, and
in such case, project a full white image for 1 hour or longer. Note that the residual image may not be completely
erased.
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Optical parts
The replacement cycle for the optical parts such as the LCD panel or polarization plate may become shorter even
if it is used for less than one year when the ambient temperature is high or in an environment with large amount of
dust or cigarette smoke. For details, consult your dealer.
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Light source
The light source of the projector uses lasers, and has the following characteristics.
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Depending on the operating environment temperature, the luminance of the light source will decrease.
The higher the temperature becomes, the more the luminance of the light source decreases.
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The luminance of the light source will decrease by duration of usage.
If brightness is noticeably reduced and the light source does not turn on, ask your dealer to clean inside the
projector or replace the light source unit.
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Computer and external device connections
When connecting a computer or an external device, read this manual carefully regarding the use of power cords
and shielded cables as well.