Nikon D40 Mainboard Replacement

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Mar 17, 2014 - 02:33:23

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Introduction

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.

What you need

Step 1 Back Cover

Nikon D40 Mainboard Replacement, Back Cover: step 1, image 1 of 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.

Step 2

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.

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.