Hitachi CP-X440 Power Supply Unit Replacement

Written By: noah wright

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Hitachi CP-X440 Power Supply Unit Replacement

Difficulty

Difficult

Steps

Time Required

1 hour

Introduction

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.

Tools

Step 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.

Step 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.

Step 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.

Step 4

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

Step 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.

Step 6

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

Step 7

Remove the motherboard so the projector is exposed.

Step 8

Remove the silver plastic protective piece from the top of the power supply unit.
Remove the black pin holder by using the spudger.

Step 9

Remove the 10 mm screws that are holding the power supply unit to the projector.

Step 10

Remove the wires that are attached to the projector from the power supply unit.

Step 11

Remove the black wire by using the Phillips #2 screwdriver to remove the 10 mm screw.
Pull on the metal bracket which should come free, and then pull the wire up so it is released.

Step 12

Remove the black wire by using the Phillips #2 screwdriver to remove the 10 mm silver screw.
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.