Canon LV 7490 - Manual (Page 61)

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Maintenance and Cleaning
Maintenance and Cleaning
RECOMMENDATION
We recommend avoiding dusty/smoky
environments when you operate the
projector. Usage in these environments
may cause poor image quality.
When using the projector under dusty or
smoky conditions, dust may accumulate
on a lens, LCD panels, or optical elements
inside the projector degrading the quality of a
projected image. When the symptoms above
are noticed, contact your authorized dealer or
service center for proper cleaning.
Be sure to reset the Filter counter after replacing
the filter.
Press the MENU button to display the
On-Screen Menu. Use the Point ▲▼
buttons to select Setting and then press the
Point ► button or the OK button.
Use the Point ▲▼ buttons to select Filter
counter and then press the Point ► or the
OK button. Use the Point ► button or the
OK button to select Filter counter reset and
then press the OK button. Filter counter
Reset? appears. Select Yes to continue.
Resetting the Filter Counter
Filter counter reset
Filter counter Reset?
appears.
Select Yes, then
another confirmation
box appears.
Select Yes again
to reset the Filter
counter.
Another confirmation dialog box appears,
select Yes to reset the Filter counter.
Replacing the Filters
Turn off the projector and unplug the AC
power cord from the AC outlet.
Turn over the projector and pull out the filter
cover (bottom); pull up the handle and take
out the whole filter (bottom.)
Press up the latches and pull out the filter
cover (side); pull out the handle and take
out the side filter.
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Filter prevents dust from accumulating on the optical elements inside the projector. Should the filter
become clogged with dust particles, it will reduce cooling fans’ effectiveness and may result in internal
heat buildup and adversely affect the life of the projector. If a “Filter warning” icon appears on the
screen, replace the filters immediately. Replace the filters by following the steps below.
Put new filters back into the position. Make
sure that the filters are fully inserted to the
projector.
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CAUTION
– Do not operate the projector with the
filters removed. Dust may accumulate
on the optical elements degrading
picture quality.
– Do not put anything into the air vents.
Doing so may result in malfunction of
the projector.
– Do not wash the filters with water or
any other liquid matter. Otherwise the
filters may be damaged.
Filter cover (bottom)
Filter cover (side)
Connect the AC power cord to the projector
and turn on the projector.
Latches (press up)
Handle (pull out)
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Handle (pull up)
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