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InFocus LP435Z Power Supply Replacement

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  1. InFocus LP435Z Power Supply Replacement, External Shell: étape 1, image 1 de 2 InFocus LP435Z Power Supply Replacement, External Shell: étape 1, image 2 de 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.

  2. InFocus LP435Z Power Supply Replacement: étape 2, image 1 de 2 InFocus LP435Z Power Supply Replacement: étape 2, image 2 de 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.

  3. InFocus LP435Z Power Supply Replacement: étape 3, image 1 de 2 InFocus LP435Z Power Supply Replacement: étape 3, image 2 de 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.

  4. InFocus LP435Z Power Supply Replacement: étape 4, image 1 de 3 InFocus LP435Z Power Supply Replacement: étape 4, image 2 de 3 InFocus LP435Z Power Supply Replacement: étape 4, image 3 de 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.

  5. InFocus LP435Z Power Supply Replacement: étape 5, image 1 de 2 InFocus LP435Z Power Supply Replacement: étape 5, image 2 de 2
    • Lift away the top case plate and set it aside.

  6. InFocus LP435Z Power Supply Replacement, Power Supply: étape 6, image 1 de 1
    • Remove the four T10 Torx 8.5 mm screws holding the DLP board in place.

  7. InFocus LP435Z Power Supply Replacement: étape 7, image 1 de 1
    • Unplug the small ribbon cable attaching the DLP board to the motherboard.

  8. InFocus LP435Z Power Supply Replacement: étape 8, image 1 de 2 InFocus LP435Z Power Supply Replacement: étape 8, image 2 de 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.

  9. InFocus LP435Z Power Supply Replacement: étape 9, image 1 de 1
    • Remove the 2 remaining T10 Torx 8mm screws securing the motherboard to the power supply.

  10. InFocus LP435Z Power Supply Replacement: étape 10, image 1 de 1
    • Remove all other cables connected to the motherboard.

    • Remove the Speaker Cable

  11. InFocus LP435Z Power Supply Replacement: étape 11, image 1 de 1
    • Remove Secondary Fan Cable

  12. InFocus LP435Z Power Supply Replacement: étape 12, image 1 de 1
    • Flip up the DLP board, leaving it attached to the large ribbon cable.

    • Remove DLP Power Cable.

  13. InFocus LP435Z Power Supply Replacement: étape 13, image 1 de 2 InFocus LP435Z Power Supply Replacement: étape 13, image 2 de 2
    • Pry out the DLP support piece by gently wiggling it side to side while applying a steady pull. It will slide out.

  14. InFocus LP435Z Power Supply Replacement: étape 14, image 1 de 3 InFocus LP435Z Power Supply Replacement: étape 14, image 2 de 3 InFocus LP435Z Power Supply Replacement: étape 14, image 3 de 3
    • Remove the two 1/4" screws using the nut driver.

    • The second screw is located behind the right side of the 100 pin connector.

    • Gently pry up the motherboard from the connector on top of the power supply.

  15. InFocus LP435Z Power Supply Replacement: étape 15, image 1 de 2 InFocus LP435Z Power Supply Replacement: étape 15, image 2 de 2
    • Disconnect the lamp power supply cables from the top of the lamp housing, by gently pulling the two wires in opposite directions.

  16. InFocus LP435Z Power Supply Replacement: étape 16, image 1 de 3 InFocus LP435Z Power Supply Replacement: étape 16, image 2 de 3 InFocus LP435Z Power Supply Replacement: étape 16, image 3 de 3
    • Use your thumbs to pry the sides of the external shell away from the power supply so it can be lifted out.

  17. InFocus LP435Z Power Supply Replacement: étape 17, image 1 de 3 InFocus LP435Z Power Supply Replacement: étape 17, image 2 de 3 InFocus LP435Z Power Supply Replacement: étape 17, image 3 de 3
    • Rotate the power supply so that the main fan enclosure faces to the right, with the motherboard mounting pegs on top.

    • Remove the two #2 Phillips 7mm screws on the side of the power supply.

    • Remove two more #2 Phillips 7mm screws on the opposite side of the power supply.

    • Rotate the power supply so the fan faces towards you, and remove a fifth #2 Phillips 7mm screw from just under the foam pad.

  18. InFocus LP435Z Power Supply Replacement: étape 18, image 1 de 2 InFocus LP435Z Power Supply Replacement: étape 18, image 2 de 2
    • Use a plastic prying tool to push the white molex connector through the fan enclosure.

  19. InFocus LP435Z Power Supply Replacement: étape 19, image 1 de 2 InFocus LP435Z Power Supply Replacement: étape 19, image 2 de 2
    • Flip the power supply over so that the motherboard mounting pegs are on the bottom.

    • Carefully open the power supply, and be mindful of the cable that will be pulled taut that needs to be disconnected.

    • It may be easier to disconnect this cable if you orient the power supply with the speaker down, so you can reach in more easily.

  20. InFocus LP435Z Power Supply Replacement: étape 20, image 1 de 1
    • The base of the power supply should now be free.

Conclusion

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

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Andrew Kennedy

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Cal Poly, Team 20-3, Maness Winter 2013 Membre de l'équipe Cal Poly, Team 20-3, Maness Winter 2013

CPSU-MANESS-W13S20G3

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