Introdução

The mainboard controls all of the software on the Nikon D40. A faulty mainboard can cause problems that will require a new board. This guide will show you how to replace the camera's mainboard.

  1. Remove the two visible 6.0 mm Philips #0 screws on the left and right sides of the viewfinder. These screws are highlighted in red.
    • Remove the two visible 6.0 mm Philips #0 screws on the left and right sides of the viewfinder. These screws are highlighted in red.

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  2. Remove the four 6.0 mm Philips #0 screws on the left and right sides of the camera.
    • Remove the four 6.0 mm Philips #0 screws on the left and right sides of the camera.

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    • Remove the four highlighted 3.0 mm Philips #0 screws on the bottom of the camera.

    Worth mentioning, the top circled screw was a 6mm on my camera. The other 3 were 3mm.

    Mark Brown - Responder

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    • While pulling the bottom down, remove the back of the camera.

    • Be careful not to pull too hard on the back as it is connected via a ribbon cable. Be sure to disconnect this cable on the main board.

    • To disconnect the ribbon cable pull the small black tab upward and pull gently on the cable.

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    • Remove the solder connecting the red wire to the mainboard.

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    • Desolder the 4 smaller wires near the bottom of the mainboard.

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    • Use the plastic opening tool to release the ribbon cables attached to the mainboard.

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    • Remove the five 3.0mm Philips #1 screws holding the mainboard down.

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    • Lift the mainboard up to reveal the final connection.

    • Carefully detach the white cable from the board.

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Conclusão

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

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Joe Leija

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Cal Poly, Team 6-19, Maness Winter 2014 Membro de Cal Poly, Team 6-19, Maness Winter 2014

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What is the ordering of the small wires on the bottom? It is hard to put back together from the photos. Thanks!

Joseph Ruskiewicz - Responder

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