Hitachi CP-X2511N Service Manual page 24

CP-X2511N(C15I-25N2) / CP-X3011N(C15I-30N2) / CP-X4011N(C15I-40N2) / CP-X2011N(C15-20N2) / ED-X45N(C15-20N2)
4. Cleaning the panels and optical filters
(1) Turn on the projector and lit on the lamp.
(2) Blow the dust off panels and optical filters using an air blower.
• Focusing on the dust makes it easy to check the dust on screen.
• The separated dust is blown away by the air cooling system of the projector.
• Pay attention not to damage panels and optical filters.
(3) If you cannot remove the dust on LCD panels using an air blower, wipe the surface of LCD panels with a swab.
CP-X2511N
Never touch or wipe the surface of the
optical filter for B color attached on the
dichroic optics unit when cleaning the LCD panels.
CP-X3011N
Never touch or wipe the surfaces of the
optical filters for B color attached on the
dichroic optics unit, and for G color attached
on the LCD prism assembly when cleaning
the LCD panels.
CP-X4011N
Never touch or wipe the surfaces of the
optical filters for B color on the both sides of
B panel, and for G color attached on the
LCD prism assembly when cleaning the LCD
panels.
[ Cross section of LCD prism ]
Never touch or wipe this surface of the optical filter
mentioned below when cleaning the LCD panel.
CP-X3011N: Optical filter for G color
CP-X4011N: Optical filters for B and G color
5. Re-assembly
(1) Turn off the set and unplug the power cord.
(2) Remove an insulator from S801.
(3) Screw down the PWB assembly MAIN, the earth metal, the F-guard earth metal and CNGD1 cable in place,
and connect the panel flexible cables and the speaker cables to the PWB assembly MAIN.
(4) Re-assemble the set.
(5) While re-assembling, please clean the air filter by using a vacuum cleaner.
WARNING
LCD panel
Optical filter for G of the LCD prism assembly
24
Optical filter for B the
dichroic optics unit
Optical filter for B of
the LCD prism assembly