Nikon D40 Mainboard Replacement Repair Guide

Difficulty

Difficult

Steps

Time Required

                          30 minutes

Sections

Back Cover
4 steps
Mainboard
5 steps

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Introduction

What you need

Step 1

              Back Cover

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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Step 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.

Step 3

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

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

Step 4

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.

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.

Step 5

              Mainboard

Remove the solder connecting the red wire to the mainboard.

Remove the solder connecting the red wire to the mainboard.

Step 6

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

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

Step 7

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

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

Step 8

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

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

Step 9

Lift the mainboard up to reveal the final connection.
Carefully detach the white cable from the board.

Lift the mainboard up to reveal the final connection.

Carefully detach the white cable from the board.

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

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                    Joe Leija

Member since: 01/21/2014

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Team

                       Cal Poly, Team 6-19, Maness Winter 2014                        

                                                  Member of Cal Poly, Team 6-19, Maness Winter 2014 



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                                            7 Guides authored

Joseph Ruskiewicz - Jan 1, 2017

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

Introduction#

What you need#

Team#

Introduction

What you need

Team