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The main motherboard controls all functions of the camera.
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Hold the camera with the lens pointing down. Press the highlighted button with your finger to release the cover.
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Pull cover over to expose the battery.
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Press the white button with your finger to release the battery.
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Once released, the battery will eject out about two inches
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Pull Touchscreen out and rotate 90 degrees. Remove the four 3 mm Phillips #000 head screws that are now exposed at the hinge.
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Remove the two 5 mm Phillips #000 head screws that near the viewfinder.
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Use a spudger and pry apart the two plastic columns surrounding the screen hinge.
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Rotate the screen forward 90 degrees and push it back into its housing against the camera.
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Use a spudger to peel rubber matting on left hand side to expose camera backplate mounting screws.
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Remove three 4 mm Phillip #000 head screws that mount the backplate to the left side of camera.
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Use tweezers to pry rubber matting on right hand side to expose backplate mounting screws.
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Remove four 4 mm Phillips #000 head screws that mount the backplate to the right side of camera.
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Turn camera upside down. Remove five 5 mm Phillips #000 head screws securing the backplate to the bottom of the camera.
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Grab the backplate and gently pull away from camera.
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Carefully pry open backplate from camera to expose LCD connector (white wire). LCD connector is attached with a metal bar to the motherboard.
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Use tweezers to gently pry metal bar connector from camera motherboard.
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Remove two 4 mm Phillips #000 head screws that mount the LCD touchscreen to the hinge on the camera.
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Grip the screen with your hand and gently pull white connecting wire through hole in backplate.
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Once the connector reaches the hole, twist the connector and pull completely through hole.
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Use spudger to lift edge of black heat tape.
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Slowly peel back black heat tape.
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Very carefully, use spudger to remove nine orangish ribbon cables.
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Using tweezers remove the two wire cables shown.
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Remove seven 5 mm Phillips #000 head screws around motherboard.
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Once the five screws are removed, remove the metal chip covered by hand.
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Slowly lift motherboard to expose the two cable wires underneath.
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Using tweezers, unattach the two wire cables holding the motherboard in.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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University of Memphis, Team S2-G5, Kim Spring 2018 crwdns2935289:0University of Memphis, Team S2-G5, Kim Spring 2018crwdne2935289:0
UM-KIM-S18S2G5
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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!
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)
Hi Tyler my Canon Camera eos 70D isn’t working anymore is it possible to replace the motherboard?
