Hitachi CP-X2520 Service Manual page 21

6-5 Air filter
Cleaning and replacing the air filter
The air filter unit of this projector consists of a filter cover, two kinds of filters, and
a filter frame. The new double large filters system is expected to function longer.
However, please check and clean it periodically to keep ventilation needed for
normal operation of the projector.
When the indicators or a message prompts you to clean the air filter, comply with
it as soon as possible. Replace the filters when they are damaged or too soiled.
When you replace the lamp, please replace the air filter. An air filter of specified
type will come together with a replacement lamp for this projector.
1.
Turn the projector off, and unplug the power cord.
Allow the projector to sufficiently cool down.
2.
Use a vacuum cleaner on and around the filter cover.
3. Pick and pull up the filter cover knobs to take it off.
4.
Use a vacuum cleaner for the filter vent of the
projector.
5. Take the fine meshed filter out while holding the
filter cover. It is recommended to leave the coarse
meshed filter in the filter cover as it is.
6.
Use a vacuum cleaner on both sides of the fine
meshed filter while holding it so it will not be
sucked in. Use a vacuum cleaner for the inside of
the filter cover to clean up the coarse meshed filter.
If the filters are damaged or heavily soiled, replace
them with new ones.
7.
Put the fine meshed filter on the coarse meshed
one, turning its stitched side up.
8. Put the filter unit back into the projector.
9.
Turn the projector on and reset the filter time using the FILTER TIME item in
the EASY MENU.
(1) Press the MENU button to display a menu.
(2) Point at the FILTER TIME using the ▼/▲ button, then press the ► button.
A dialog will appear.
(3) Press the ► button to select "OK" on the dialog. It performs resetting the
filter time.
WARNING
is not plugged in, then allow the projector to cool sufficiently. Taking care of the
air filter in a high temperature state of the projector could cause an electric shock,
a burn or malfunction to the projector.
►Use only the air filter of the specified type. Do not use the projector without the
air filter or the filter cover. It could result in a fire or malfunction to the projector.
►Clean the air filter periodically. If the air filter becomes clogged by dust or the
like, internal temperatures rise and could cause a fire, a burn or malfunction to
the projector.
NOTE
• Please replace the air filter when it is damaged or too soiled.
• When you replace the projection lamp, please replace the air filter. An air filter
of specified type will come together with a replacement lamp for this projector.
• Please reset the filter time only when you have cleaned or replaced the air
filter, for a suitable indication about the air filter.
• The projector may display the message such as "CHECK THE AIR FLOW" or
turn off the projector, to prevent the internal heat level rising.
CP-X2520 ( M2-25ED ) / CP-X3020 ( M2-30ED )
►Before taking care of the air filter, make sure the power cable
2
Filter cover
3
Filter cover knobs
4
Intake vent
7
Filter (coarse meshed)
Filter (fine meshed)
Stitched
side
21