Hitachi CP-X440 Power Supply Unit Replacement

Introdução

This guide will show you how to replace the power supply unit in the HITACHI CP-X440. All of the following necessary tools will be listed in the guide for your reference.

Before starting, make sure device is unplugged from power source. There are many wires involved in this replacement so there's a chance for getting hurt if the projector is turned on.

O que você precisa

Passo 1 Motherboard

Hitachi CP-X440 Power Supply Unit Replacement, Motherboard: passo 1, imagem 1 %32

Turn the projector upside down so the bottom is facing up.
Remove the 6 black 2 cm screws with a Phillips #1 Screwdriver.
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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Passo 2

Flip the projector right-side up and navigate to the back panel.
Remove the 3 black, 1 cm screws on the back panel with a Phillips #1 Screwdriver.
Remove the two silver 1 cm screws on the power switch panel with a Phillips #1 Screwdriver.

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Passo 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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Passo 4

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

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Passo 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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Passo 6

Remove the 5 silver 0.5 cm screws on the circuit board with a Phillips #2 Screwdriver.

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Passo 7

Remove the motherboard so the projector is exposed.

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Passo 8 Power Supply Unit

Hitachi CP-X440 Power Supply Unit Replacement, Power Supply Unit: passo 8, imagem 1 %32

Hitachi CP-X440 Power Supply Unit Replacement, Power Supply Unit: passo 8, imagem 2 %32

First remove the sliver plastic protective piece from on top of the power supply unit.
Remove the black pin holder by using the spudger.

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Passo 9

Hitachi CP-X440 Power Supply Unit Replacement: passo 9, imagem 3 %32

Next unscrew all of the 1 cm screws that are holding the power supply unit to the projector.

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Passo 10

Next, remove the wires that are attached to the projector from the power supply unit.

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Passo 11

Hitachi CP-X440 Power Supply Unit Replacement: passo 11, imagem 3 %32

Remove the black wire by using the Phillips head #2 screw driver to unscrew the 1 cm screw.
Once the screw is out, pull on the metal bracket which should come free, and then pull the wire up so it is released.

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Passo 12

Hitachi CP-X440 Power Supply Unit Replacement: passo 12, imagem 3 %32

Remove the black wire by using the Phillips head #2 screw driver to unscrew the 1 cm silver screw.
Once the screw is out, pull on the metal bracket which should come free. Then pull the wire up so it is released.
The third picture marks where the base of the second picture's screw is located.