Installation Of Small Iris (Information For Service Personnel - NEC NC1500c Installation Manual

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NC1500C
2.6
Installation of Small Iris
(Information for Service Personnel)
If it is requested by the customer to reduce the projector's lamp luminance because it is too
bright even when set to the minimum level, you may reduce it as follows. This operation will
also improve the contrast ratio.
Preparatory operation:
• Make sure that the main power switch of the customer's projector is turned off.
• Get the supplied small iris ready. (Included in the standard set of accessories)
Installation step
Remove the lens side cover.
[1]
Remove the hexagonal fasteners (2
places) on the side and remove the cover
with lifting it a little.
Remove the iris plate of the
[2]
engine block.
Untighten the four clamping screws to
remove the iris plate.
Remove the iris screws.
[3]
Iris plate is provided with a default iris.
Remove 3 screws from the iris.
Mount the small iris.
[4]
Use 3 screws you have removed at Step
[3] to mount the small iris among
accessories with overlapping it over the
iris.
2. Setting Up Your Projector
D-25

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