Hitachi CP-X505 Service Manual page 29

6-7 Lens
• Before replacing the projector lens, be sure to read this manual, the "User's Manual-Safety Guide" and the
"Optional Lens User's Manual" of the LCD projector for use with this lens.
• Do not place the lens in a location subject to direct sunlight or other strong lighting or near heat-radiating
equipment.
• Do not subject the lens to shocks.
• Be sure to unplug the LCD projector before replacing the lens.
• Do not touch the fan of the LCD projector during operation.
• Before replacing the lens, be sure to turn off and unplug the LCD projector, and allow at least 45 minutes
for the projector to fully cool.
• When attaching, take care so that dust not enter inside.
• When replacing the lens, do not touch the LCD panels or polarizing plates of the LCD projector or subject
them to shocks.
• When replacing the lens, be careful not to damage the connectors or wires inside the LCD projector.
• After replacing the lens, part of the lens may stick out from the LCD projector.
• Do not touch the lens directly with your hands or fi ngers.
This can dirty the lens and cause deterioration in image quality.
• The lens is a precision optical device. Carefully handle the lens without subjecting it to shocks or vibrations.
• When resting the lens on a surface, place the lens face down on a soft cloth.
• Select Lens type in OPTION-SERVICE-LENS TYPE Menu after changing the Lens.
Replacing the Lens
1.Remove the front cover.
(1) Remove the 2 screws marked
the lens knob cover.
(2) Remove the 2 screws marked
the projector.
(3)Turn the lens shift dial, and lower the projection lens to the
lowest position.
(4) Remove the front cover.
CP-X505(EDX35N)
WARNING
CAUTION
ATTENTION
(triangle) from the inside of
Lens knob cover
(triangle) from the front of
Front cover
2.Insert your finger from the side, turn the lens to the left
and remove while pulling up on the lens lock lever, as
shown in the illustration.
Caution when removing lens
Be sure not to touch the prism
behind the lens.
3.Attach the replacement projection lens.
(1) Attach the lens blinder to the rear of the projection lens while
holding open the lens blinder hole.
(2) Line up the notched tab on the lens mount with the hole
on the upper-left part of the holder, and insert the lens.
(3) Turn the lens to the right until it "clicks" into place to ensure
that the lens is locked in place.
4.Reattach the front cover to complete lens replacement.
(1) Reattach the included front cover.
(2) Re-fasten the 2 screws marked
removed in step 1.(2).
(3) Re-fasten the 2 screws marked
removed in step 1.(1).
29
Lens lock lever detail
Lens lock lever
Finger
Projection lens with lens
blinder attached.
Lens mount tab detail
Hole on upper-left of holder
Notched tab on lens mount
The other two tabs are not notched.
(triangle) that were
(triangle) that were