Canon EOS Rebel T3 Shutter Assembly Replacement

ID: 180760

Description: This guide shows you how to replace the shutter...

Pry open the rubber I/F terminal cap with your finger.
Remove the two M1.7x4.5mm JIS #000 screws that are underneath the I/F terminal cap.
Using a plastic pick, or another thin plastic prying tool, pop off the I/F terminal cover from the camera.

Carefully lift the back cover partially off of the camera.
There are two ribbon cables still connecting the back cover to the camera.
Disconnect the right most ribbon cables from the main PCB board.
Use a plastic spudger to lift up the black locking tab.
Pull out the ribbon cable from its connector using a pair of angled tweezers.
With this ribbon cable disconnected, you will be able to move the back cover slightly farther away from the camera, giving you more room to remove the remaining ribbon cable.
Remove the left ribbon cable using the same two steps as with the other ribbon cable.

Slide a spudger tool towards the tripod mount, underneath the plastic cover.
Push the plastic cover up and over the tripod mount.
Pull the front cover off of the camera.
Electric Shock Warning: With the front cover off, the high voltage capacitor on the DC PCB board is now exposed. It is recommended that you use a capacitor discharge tool to ensure the capacitor is fully discharged before proceeding further.

Disconnect the microphone cable from the main PCB board.
Position a flathead 2.5mm screwdriver between the main PCB board connector and the microphone connector.
Gently wiggle the flathead screwdriver back and forth until the microphone connector comes free.
If you do not have a flathead 2.5mm screwdriver, another similarly sized flathead screwdriver should work.

Gently lift up the top cover.
There are still several cables connecting the top cover to the camera. Be careful to not pull on these cables while lifting up the top cover.
Set the top cover down, making sure not to pull on the cables still attached.

Use caution while handling ribbon cables and ribbon cables connects to avoid damaging them.
Locate the two ribbon cables on the main PCB board which are marked in the picture.
Disconnect the ribbon cables.
These ribbon cables features a hole in them which can assist with disconnecting them. Use either a pair of tweezers or another tool with a thin point to pull out the ribbon cables utilizing this hole.
Use a plastic spudger tool to carefully push up and disconnect the imaging sensor ribbon cable.

Locate the remaining four ribbon cables connected to the main PCB board.
Gently push up on the plastic lock tabs to unlock each of the ribbon cable connectors. Be especially careful with the wide lock tab, as it is particularly fragile.
Disconnect each ribbon cable from the main PCB board.
Use the same method from the previous step to remove these cables.

Tilt the main PCB board upwards to reveal the remaining cable connection.
Grab the two cables going into the connector, grabbing them as close to the connector as you can.
Carefully pull the connector straight out.

Using a plastic spudger tool, carefully push up and disconnect the ribbon cable from the image sensor.
Remove the following screws from the image sensor:
Two M1.7x1.6mm JIS #000 screws
Three M1.7x5.5mm Phillips #000 screws

Gently lift the image sensor straight up and away from the camera.
Use extreme care while handling the image sensor, especially if you place on reinstalling the same image sensor back into the camera. The use of an anti-static wrist band is highly recommended. Avoid touching the front of the sensor with your fingers or any tools.
When placing the image sensor down, place it with the sensor facing upwards. You may also want to place a container over the image sensor to prevent any dust from settling on it.
If there is any dust or smudges on the sensor, you may consider performing a wet clean on the sensor while it is removed from the camera if you are planning on reinstalling it. Be sure to use a proper sensor cleaning kit and to follow their cleaning instructions.

Under where the three M1.7x5.5mm Phillips #000 screws were, you will notice figure eight-shaped washers.
Use a pair of tweezers to remove the washers.
Caution: Keep very careful track of where each washer was removed from. Some washers may contain a stack of two washers. Each washer is a different thickness (down to 0.01mm) and reinstalling them in the wrong spot will result in out of focus images.
You may want to use a digital caliper to measure each washer as you remove them, and record down the washer's thickness and which spot you removed it from.

On the bottom of the camera, remove the following screws from the tripod socket plate:
Two M2.0x3.5mm JIS #000 screws
Two M2.0x5.0mm Phillips #000 screws
Pull off the tripod socket plate.

On the back of the camera, remove the following screws holding the metal bracket in place:
Four M1.7x5.5mm Phillips #000 screws
Three M1.7x5.0mm Phillips #000 screws
One M2.0x4.3mm JIS #000 screw
Pull off the metal bracket, being careful not to damage any of the ribbon cables.

Electric Shock Warning: If you have not already done so, use a capacitor discharge tool on the high voltage capacitor located on the DC PCB board before proceeding.
On the DC PCB board, peel off the tape covering the shutter assembly power cable.
Using a plastic spudger tool, lift up the black locking tab on the ribbon cable connector.
Disconnect the ribbon cable and tuck the end of it away where it'll be safe while soldering.
Place polyimide tape on the PCB board around the shutter assembly power cables. This is to help protect the components on the PCB board while desoldering the cables.
Using a soldering iron and desoldering wick, desolder the two shutter assembly power cables from the DC PCB board. The wires should be red and black.
iFixit desoldering guide

On the shutter assembly, remove the following screws:
One M1.7x4.5mm Phillips #000 screw
One M1.7x7.0mm Phillips #000 screw
Also remove the metal tab that is held on by the screw.
Carefully lift off the shutter assembly.
When reinstalling the shutter assembly, make sure the metal spring gets hooked over the lever for the mirror.

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