Panasonic PT-VMZ50 Operating Instructions Manual page 22

rDo not touch the surface of the projector lens with your bare hands.
If the surface of the lens becomes dirty from fingerprints or anything else, this will be magnified and projected onto
the screen.
It is recommended to attach the supplied lens cap to the projection lens when you do not use the projector.
rLCD panel
The LCD panel is precision-made. Note that in rare cases, pixels could be missing or always lit. Note that such
phenomena do not indicate malfunction.
If still images are projected for a long time, a residual image may remain on the LCD panel. In this case, project
the all white screen for over an hour. Note that the residual image may not disappear.
rOptical parts
When the operating environment temperature is high or in environments where lots of dust, cigarette smoke, etc.
is present, the replacement cycle of the LCD panel, polarizing plate and other optical parts may be shorter even if
used for less than one year. Consult your dealer for details.
rLight source
The light source of the projector uses lasers, and has the following characteristics.
f 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.
f 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.
rComputer 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.
22 - ENGLISH
Chapter 1 Preparation - Precautions for use