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InFocus LP435Z DLP Board Replacement

InFocus LP435Z DLP Board Replacement

Andrew Kennedy

Andrew Kennedy and 7 other contributors

Last updated on January 28, 2014

15 - 30 minutes
Moderate
Featured Guide

Introduction

Go to step 1

The Digital Light Processing (DLP) board is what converts the video input from an outside source (like a computer) into a format the projector can display. If this board is damaged or faulty, a whole host of image projection issues can occur that will not be fixed by cleaning the lens or replacing the lamp.

What you need

Tools

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  1. InFocus LP435Z DLP Board Replacement, External Shell: step 1, image 1 of 2 InFocus LP435Z DLP Board Replacement, External Shell: step 1, image 2 of 2

    • Place the projector on its back (buttons down) with the lens facing away from you.

    • Remove the two 84mm screws in the upper left and right corners of the projector using the Phillips #2 screwdriver.

    • Remove the remaining three 8.5mm screws using the Phillips #1 screwdriver.

    Edit

  2. InFocus LP435Z DLP Board Replacement: step 2, image 1 of 2 InFocus LP435Z DLP Board Replacement: step 2, image 2 of 2

    • Use the plastic opening tools to push down the clips holding the lamp cover in place, and remove it.

    • There is no lamp assembly in the projector used in this guide, yours may appear different.

    Edit

  3. InFocus LP435Z DLP Board Replacement: step 3, image 1 of 2 InFocus LP435Z DLP Board Replacement: step 3, image 2 of 2

    • Remove the two 8.5mm rear screws holding the rear case plate to the projector using the Phillips #1 screwdriver.

    • Pull the rear plate straight off and set it aside.

    Edit

  5. InFocus LP435Z DLP Board Replacement: step 4, image 1 of 3 InFocus LP435Z DLP Board Replacement: step 4, image 2 of 3 InFocus LP435Z DLP Board Replacement: step 4, image 3 of 3

    • Flip the projector over and turn around so that the lens faces you.

    • Twist the gray zoom adjustment ring clockwise and extend the lens all the way out, and then slide the zoom adjustment ring all the way towards the end of the lens as far as it will go.

    • Slide the front case plate towards the loosened zoom adjustment ring, until the top plate of the projector is freed from underneath the lip of the front case plate.

    • The front case plate will not come all the way off due to the zoom adjustment ring obstructing it. It will merely slide forward a bit.

    Edit

  6. InFocus LP435Z DLP Board Replacement: step 5, image 1 of 2 InFocus LP435Z DLP Board Replacement: step 5, image 2 of 2

    • Lift away the top case plate and set it aside.

    Edit

  7. InFocus LP435Z DLP Board Replacement, DLP Board: step 6, image 1 of 1

    • Remove the four T10 Torx 8.5 mm screws holding the DLP board in place.

    Edit

  8. InFocus LP435Z DLP Board Replacement: step 7, image 1 of 1

    • Unplug the small ribbon cable attaching the DLP board to the motherboard.

    Edit

  9. InFocus LP435Z DLP Board Replacement: step 8, image 1 of 2 InFocus LP435Z DLP Board Replacement: step 8, image 2 of 2

    • Detach the DLP board from where it is connected to the motherboard by a large 100 pin connector.

    • Pry up gently while wiggling from left to right if needed.

    • The ribbon cable on the other side of the board could break if pulled too hard.

    Edit

  10. InFocus LP435Z DLP Board Replacement: step 9, image 1 of 2 InFocus LP435Z DLP Board Replacement: step 9, image 2 of 2

    • Remove the black plastic retaining clip reinforcing the large ribbon cable connector by prying it from the left edge.

    • Gently pry the large ribbon cable connector from the DLP board, and remove the board.

    • Using too much force could damage the connector.

    Edit
Conclusion

To reassemble your device, follow these instructions in reverse order.

3 other people completed this guide.

Author

with 7 other contributors

Andrew Kennedy

Member since: 01/29/13

186 Reputation

6 Guides authored

Badges: 10

+7 more badges

Team

Cal Poly, Team 20-3, Maness Winter 2013 Member of Cal Poly, Team 20-3, Maness Winter 2013

CPSU-MANESS-W13S20G3

4 Members

6 Guides authored

One Comment

I Andrew

Recently I bought an INFOCUS LP435Z, it was with the inverted image, when I wanted to use the buttons to enter the menu, to modify the image inversion, none of the buttons reacted.

You will have an idea of what is due and how to solve it? Could it be that with the option of active blocking? I do not have the unlock key, how could I check it?

Thank you very much for your answer.

Regards

Maximiliano - Reply

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