Bedienungsanleitung Mitsubishi WL7050U (Seite 57 von 68) (Englisch)

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EN-57

You can replace the lens on this projector. The lens

can be replaced with the separately sold option lens

according to the usage environment of the projector.

For details of the speciﬁcation of the option lens,

contact your local dealer.

• Beforeyoureplacethelens,besuretoturnoffthe

projector and unplug the power cord from the wall

outlet.

• Beforeyoureplacethelens,besuretoresetthe

lens position to the center (the factory default

position).

When the lens position is moved from the center,

reset to the center position (the factory default

position) using the lens shift reset (see page 33).

The lens replacement may fail when the lens

position is moved from the center.

• Theprojectorandlensarecomposedofprecision

parts. Do not subject them to shock or excessive

force.

• Duringreplacement,donottouchthelenssurface

with your hands.

• Takesufcientcarenottoattachanydirtoroil

on the lens surface, and not to scratch the lens

surface.

• Donotreplacethelensinadustyplace.Dirtor

dust entering the projector causes a degradation of

an image quality.

• Donotleavethelensremovedfromtheprojector

for a long period of time. Dirt or dust entering the

projector causes a degradation of an image quality.

• Donottouchthesignalcontactofthelenswith

your ﬁnger. When dirt or dust adheres, it may cause

a contact failure.

Removing the lens

1. Remove the lens ring by turning it counterclockwise

slightly.

Lens ring

2. Turn the lens counterclockwise until it stops while

pressing the lens release button on the top of the

cabinet as far as it will go, and then remove the

lens by pulling it out slowly.

•Donotdropthelenswhenremovingit.

Lens release button

Lens

Mounting the lens (option lens)

1. Remove the lens protective cap from the lens.

Lens

Protective cap

• Don’tattachtheprotectivecaptothelensafter

mounting the lens to the projector.

2. Insert the lens slowly as far as it will go with the red

mark on the lens pointed upward in the center.

Red mark

3. Turn the lens clockwise slowly until you hear it

click.

• Donotpressthelensreleasebuttonwhen

mounting the lens.

• Afteryoumountthelens,turnitcounterclockwise

and check that it isn’t removed.

4. Insert the lens ring with the part A pointed up and

then turn it clockwise.

Lens ring

Part A

Important:

• Donottransporttheprojectorwiththeoptionlens

mounted. The projector may be damaged.

• Withtheoptionlensmounted,thebrightness,

resolution, and color uniformity in the projected

image may differ from those with the standard lens.

• Withtheoptionlensmounted,theadjustableangle

in the keystone adjustment differs from that with

the standard lens.

• Inthekeystoneadjustmentwiththeoptionlens

mounted, the proper aspect ratio may not be

obtained.

• Whentheoptionlensismounted,projectedimages

may become distorted, have decreased resolution,

or have shadows at their corners if the projection

screen is set close to the top or bottom edge or

right or left edge of the effective projection area.

Replacing the lens

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