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Maintenance and Care
Optional Filter Instructions
Filter prevents dust from accumulating on the optical elements inside the projector. Should the filter becomes
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. This projector is available with an electrically operated filter (supplied)
which helps you to replace the filter easily. The projector monitors the condition of the filter at all time and
replaces a filter with a new one automatically when it detects the clogging.
If the projector reaches a time set in the timer setting
(pp.60-61), a Filter replacement icon (Fig.1) appears on the
screen and the WARNING FILTER indicator on the top panel
lights up (p.79). When you see this icon, replace the filter as
soon as possible (pp.31, 56). If the filter is out of scroll and
the projector reaches a time set in the timer setting, Fig.
2 appears on the screen, indicating that the filter cartridge
replacement is necessary.
When the filter scroll is counted down to 1, the Last scroll
icon (Fig.3) appears on the screen, indicating that there is
one scroll left in the filter cartridge (p.61).
If the projector detects that the filter is clogged and no scroll
is left in the filter cartridge, a Filter cartridge replacement
icon (Fig. 4) appears on the screen and the WARNING
FILTER indicator on the top panel lights up (p.79). When you
see this icon, replace the filter cartridge (p.63) and reset the
Filter counter (p.64) and the Scroll counter (p.64).
When the filter is being scrolled by the remote control (p.31)
or the Filter control function in the setting menu (p.56), a
Filter replacement icon and "Please wait... " message (Fig.5)
appear on the screen and the WARNING FILTER indicator
blinks slow (approx. 2 seconds ON, 2 seconds OFF) (p.77).
The WARNING FILTER indicator blinks fast when the
projector detects an abnormal condition, the filter cartridge
is not installed properly, or the filter scroll is not working
properly (p.79).
Note:
62
Fig.1 Filter replacement icon
Fig.2
Fig.3 Last scroll icon
Fig.4 Filter cartridge replacement icon
Fig.5 Filter replacement icon and
"Please wait... " message.
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DS
750 User Manual
020-000210-01 Rev.1 (06-2009)
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