Panasonic PT-EW730Z User Manual
Chapter 1 Preparation — Precautions for use
ENGLISH - 21
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LCD panel
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The LCD panel is precision-made. Note that in rare cases, pixels of high precision 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. Note that the residual image may not disappear.
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Optical 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, deflection panel and other optical parts may be shorter even if used for less than one
year. Consult your dealer for details.
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Do not move the projector or subject it to vibration or impact while it is operating.
Doing so may shorten the life of the built-in motor.
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Lamp
The light source of the projector is a high-pressure mercury lamp.
A high-pressure mercury lamp has the following characteristics.
A high-pressure mercury lamp has the following characteristics.
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The luminance of the lamp will decrease by duration of usage.
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The lamp may burst with a loud sound or have its service life shortened because of shock, chipping, or degradation due to
cumulative runtime.
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The lamp life varies greatly depending on individual differences and usage conditions. In particular, continuous use for 12
hours or more and frequent off/on switching of the power greatly deteriorate the lamp and affects the lamp life.
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In rare cases, the lamps burst shortly after projection starts.
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The risk of bursting increases when the lamp is used beyond its replacement cycle. Make sure to replace the lamp unit
regularly.
(“When to replace the lamp unit” (x page 133), “How to replace the lamp unit” (x page 133))
(“When to replace the lamp unit” (x page 133), “How to replace the lamp unit” (x page 133))
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If the lamp bursts, gas contained inside of the lamp is released in the form of smoke.
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It is recommended that you store the Replacement Lamp Unit as a contingency.
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Computer and external device connections
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When connecting a computer or an external device, read this manual carefully regarding the use of power cords and
shielded cables as well.
Disposal
To dispose of the product, ask your local authorities or dealer for correct methods of disposal.
The lamp contains mercury. When disposing of used lamp units, contact your local authorities or dealer for correct methods of
The lamp contains mercury. When disposing of used lamp units, contact your local authorities or dealer for correct methods of
disposal.