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はじめに

This guide explains how to safely remove and replace the lens of the Hitachi CP-X440 projector. This may be necessary if the lens is damaged or broken. It is also suggested to replace the lens if the image quality begins to decrease significantly. This is evident when the images are very dim or there are visible distortions.

Some steps require handling a circuit board and wires, so proceed carefully. This procedure is simple but may be time-intensive and tedious.

Before beginning, make sure the device is unplugged from any power source.

必要な工具と部品

手順1 Motherboard

Hitachi CP-X440 Lens Replacement, Motherboard: 手順 1、 1の画像 1

Turn the projector upside down so the bottom is facing up.
Using a Phillips #1 screwdriver remove the six black 2 mm screws.
The screws are deep in the holes, so be careful when removing them as they can easily fall off the screwdriver tip.

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手順2

Flip the projector right-side up and navigate to the back panel.
Remove the three black 10 mm screws on the back panel with a Phillips #1 screwdriver.
Remove the two silver 10 mm screws on the power switch panel with a Phillips #1 screwdriver.

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手順3

Now turn the projector so the front is facing you.
Gently remove the lid from the bottom of the projector so the green circuit board is exposed.

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手順4

Gently remove the cables from their white connectors on the circuit board.

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手順5

Gently pull out the three orange ribbons from their white connectors on the circuit board.
You can use a spudger tool to pry them out of place.

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手順6

Remove the five silver 5 mm screws on the circuit board with a Phillips #2 screwdriver.

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手順7

Remove the motherboard so the projector is exposed.

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手順8 Lens

Hitachi CP-X440 Lens Replacement, Lens: 手順 8、 3の画像 1

Hitachi CP-X440 Lens Replacement, Lens: 手順 8、 3の画像 2

Hitachi CP-X440 Lens Replacement, Lens: 手順 8、 3の画像 3

As you look at the the device overhead, you will see three pieces of orange ribbon.
Attached to the orange ribbon will be a stabilizer over the lamp.
On each side, unscrew the two 1 cm screws with a Phillips #0 Screwdriver.
Then remove the piece holding the orange ribbons, called the stabilizer from this point on.

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手順9

Hitachi CP-X440 Lens Replacement: 手順 9、 3の画像 3

Once the stabilizer is removed, set it to the side.
Use a Phillips #0 screwdriver to remove the two 1 cm screws on both sides of the lens.
The lens element should be easily lifted out of the device.

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手順10

Once the lens element is safely removed, you will see 4 tiny 1/2 centimeter screws surrounding the lens.
Use a Phillips #000 screwdriver to unscrew each screw. This will allow you to easily remove the lens.

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