Canon Eos 70D Camera Motherboard Replacement Repair Guide

Difficulty

Difficult

Steps

Time Required

                          40 minutes - 1 hour

Sections

Battery
3 steps
LCD Touchscreen
7 steps
Camera Motherboard
5 steps

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Introduction

What you need

Step 1

              Battery

Hold the camera with the lens pointing down. Press the highlighted button with your finger to release the cover.
Pull cover over to expose the battery.

Hold the camera with the lens pointing down. Press the highlighted button with your finger to release the cover.

Pull cover over to expose the battery.

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Step 2

Press the white button with your finger to release the battery.
Once released, the battery will eject out about two inches

Press the white button with your finger to release the battery.

Once released, the battery will eject out about two inches

Step 3

Pull battery out of the camera.

Pull battery out of the camera.

Step 4

              LCD Touchscreen

Pull Touchscreen out and rotate 90 degrees. Remove the four 3 mm Phillips #000 head screws that are now exposed at the hinge.
Remove the two 5 mm Phillips #000 head screws that near the viewfinder.
Use a spudger and pry apart the two plastic columns surrounding the screen hinge.
The screen will not be removed at this step.
Rotate the screen forward 90 degrees and push it back into its housing against the camera.

Pull Touchscreen out and rotate 90 degrees. Remove the four 3 mm Phillips #000 head screws that are now exposed at the hinge.

Remove the two 5 mm Phillips #000 head screws that near the viewfinder.

Use a spudger and pry apart the two plastic columns surrounding the screen hinge.

The screen will not be removed at this step.

Rotate the screen forward 90 degrees and push it back into its housing against the camera.

Step 5

Use a spudger to peel rubber matting on left hand side to expose camera backplate mounting screws.
Remove three 4 mm Phillip #000 head screws that mount the backplate to the left side of camera.

Use a spudger to peel rubber matting on left hand side to expose camera backplate mounting screws.

Remove three 4 mm Phillip #000 head screws that mount the backplate to the left side of camera.

Step 6

Use tweezers to pry rubber matting on right hand side to expose backplate mounting screws.
Remove four 4 mm Phillips #000 head screws that mount the backplate to the right side of camera.

Use tweezers to pry rubber matting on right hand side to expose backplate mounting screws.

Remove four 4 mm Phillips #000 head screws that mount the backplate to the right side of camera.

Step 7

Turn camera upside down. Remove five 5 mm Phillips #000 head screws securing the backplate to the bottom of the camera.
Grab the backplate and gently pull away from camera.
The backplate will still be attached by the wires running to the LCD touchscreen.
The screen will still be attached to the camera and won’t be removed until step 10.

Turn camera upside down. Remove five 5 mm Phillips #000 head screws securing the backplate to the bottom of the camera.

Grab the backplate and gently pull away from camera.

The backplate will still be attached by the wires running to the LCD touchscreen.

The screen will still be attached to the camera and won’t be removed until step 10.

Step 8

Carefully pry open backplate from camera to expose LCD connector (white wire). LCD connector is attached with a metal bar to the motherboard.
Use tweezers to gently pry metal bar connector from camera motherboard.

Carefully pry open backplate from camera to expose LCD connector (white wire). LCD connector is attached with a metal bar to the motherboard.

Use tweezers to gently pry metal bar connector from camera motherboard.

Step 9

Remove two 4 mm Phillips #000 head screws that mount the LCD touchscreen to the hinge on the camera.

Remove two 4 mm Phillips #000 head screws that mount the LCD touchscreen to the hinge on the camera.

Step 10

Grip the screen with your hand and gently pull white connecting wire through hole in backplate.
Once the connector reaches the hole, twist the connector and pull completely through hole.
You must twist the connector in order to fit through hole.

Grip the screen with your hand and gently pull white connecting wire through hole in backplate.

Once the connector reaches the hole, twist the connector and pull completely through hole.

You must twist the connector in order to fit through hole.

Step 11

              Camera Motherboard

Use spudger to lift edge of black heat tape.
Slowly peel back black heat tape.

Use spudger to lift edge of black heat tape.

Slowly peel back black heat tape.

Step 12

Very carefully, use spudger to remove nine orangish ribbon cables.
Using tweezers remove the two wire cables shown.
Slowly remove ribbon cables because they can tear very easily.

Very carefully, use spudger to remove nine orangish ribbon cables.

Using tweezers remove the two wire cables shown.

Slowly remove ribbon cables because they can tear very easily.

Step 13

Remove seven 5 mm Phillips #000 head screws around motherboard.
Once the five screws are removed, remove the metal chip covered by hand.
This will leave the mother board exposed, attached by two cable wires underneath.

Remove seven 5 mm Phillips #000 head screws around motherboard.

Once the five screws are removed, remove the metal chip covered by hand.

This will leave the mother board exposed, attached by two cable wires underneath.

Step 14

Slowly lift motherboard to expose the two cable wires underneath.
Using tweezers, unattach the two wire cables holding the motherboard in.

Slowly lift motherboard to expose the two cable wires underneath.

Using tweezers, unattach the two wire cables holding the motherboard in.

Step 15

Carefully remove motherboard.

Carefully remove motherboard.

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

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                                                                                      12 other people completed this guide.

Author

                                      with 3 other contributors

                    Tyler Baker

Member since: 03/21/2018

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Team

                       University of Memphis, Team S2-G5, Kim Spring 2018                        

                                                  Member of University of Memphis, Team S2-G5, Kim Spring 2018 



                    UM-KIM-S18S2G5                     


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                                            11 Guides authored

marcuscleveland85 - Jun 10, 2019

Great write up and illustrations. I’m in the process of repairing a 70D and this will be a great help.

Thank you and keep up the good work!

Stephen Lay - Jul 10, 2019

Hi, do you know if after replacing the main board it is necessary to configure the camera with some software ? (I heard of spt software)

Charlie Laguna - Sep 9, 2020

Hi Tyler my Canon Camera eos 70D isn’t working anymore is it possible to replace the motherboard?

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What you need#

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Featured Student Guide

Introduction

What you need

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