Canon EOS Rebel T2i Main PCB Board Replacement
Zephosk and one other contributor
Last updated on Feb 12, 2025
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Community-Contributed Guide
An awesome member of our community made this guide. It was not created by iFixit staff.
Introduction
Go to step 1 ↓This guide shows you how to remove the main PCB board in the camera. This is useful in the event that the main PCB board is damaged and needs to be replaced, or if you need to access other parts such as the SD card board, or the imaging sensor.
When you install the new main PCB board and are reconnecting the cables, note the single round black cable that leads to the top cover. This cable connects to the right side of the board and the connector is attached to the back of the board. To reconnect it, you simply need to push the cable down into the hole on the connector.
This cable is a fiber optics cable used for the camera flash. Forgetting to reconnect this cable will likely cause the camera flash to no longer function.
The Phillips #000 screwdriver is marked as an optional tool as you can always use the JIS #000 screwdriver in its place (JIS screwdrivers won't damage Phillips head screws).
What you need
Tools
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Spudger4.9
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Pry open the rubber I/F terminal cap with your finger.
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Remove the two M1.7x2.5mm JIS #000 screws that are underneath the I/F terminal cap.
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Using a plastic pick, or another thin plastic prying tool, pop off the I/F terminal cover from the camera.
Ask FixBot
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On the left side of the camera, remove the following screw:
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One M1.7x6.0mm JIS #000 screw
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On the right side, remove the following screws:
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One M1.7x5.5mm JIS #000 screw
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One M1.7x3.5mm JIS #000 screw
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Remove the battery door.
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Open the battery door to about a 35° angle.
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Pull the battery door straight outwards.
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Remove the following screws from the bottom of the camera:
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One M1.7x6.0mm JIS #000 screw
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Two M1.7x2.5mm JIS #000 screws
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One M1.7x5.5mm JIS #000 screw
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Slide the viewfinder eyepiece vertically upwards.
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Start to pull the back cover partially off of the camera.
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Disconnect the LCD screen ribbon cable from the main PCB board.
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Use a plastic spudger to lift up the black locking tab.
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Carefully pull out the ribbon cable from its connector using a pair of angled tweezers.
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Finish pulling the back cover off of the camera body.
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Remove the following screws from the front of the camera:
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Two M1.7x5.5mm JIS #000 screws
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On the bottom of the camera, remove the following screws:
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Three M1.7x5.5mm JIS #000 screws
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Slide a spudger tool towards the tripod mount, underneath the plastic cover.
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Push the plastic cover up and over the tripod mount.
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Pull the front cover off of the camera.
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Remove the screws next to the viewfinder:
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Two M1.7x2.5mm JIS #000 screws
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One M2.0x8.9mm JIS #000 diopter screw
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Remove the following screws from the top of the camera:
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One M1.7x2.5mm JIS #000 screw
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One M1.7x5.0mm Phillips #000 screw
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Disconnect the microphone cable from the main PCB board.
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Position a flathead 2.5mm screwdriver between the main PCB board connector and the microphone connector.
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Gently wiggle the flathead screwdriver back and forth until the microphone connector comes free.
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Locate the ribbon cable which connects the top cover the main PCB board.
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Use a plastic spudger tool to carefully pry off the connector.
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Take note of where this fiber optic cable connects to the main PCB board.
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Disconnect these two cables connected to the DC PCB board.
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Use the same method as with removing the microphone cable, except with using a flathead 3.0mm screwdriver.
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Gently wiggle the flathead screwdriver back and forth until the connectors comes free.
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Gently lift the top cover up and off of the camera body, being careful that the loose cables do not snag on anything.
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Locate these three ribbon cables located on the left side of the main PCB board.
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Disconnect the ribbon cables.
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Use a plastic spudger tool to carefully push up and disconnect the imaging sensor ribbon cable.
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Locate the remaining seven ribbon cables connected to the main PCB board.
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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.
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Disconnect each ribbon cable from the main PCB board.
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Remove the following screws on the main PCB board:
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Three M1.7x2.5mm JIS #000 screws
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Two M1.7x3.5mm Phillips #000 screws
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Slide off the metal I/F terminal shield.
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Tilt the main PCB board upwards to reveal the remaining cable connection.
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Carefully disconnect the cable.
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To reassemble your device, follow these instructions in reverse order.
Attached Documents
Team
2 Guide Comments
Hi! I'm looking to replace the Main PCB Board for my Canon EOS Rebel T2i. Do you know where I might be able to find one for sale?
EBay is a pretty good place to check. You can probably just search Canon Rebel T2i motherboard to find some (or Canon 550D motherboard since it's the same camera). You might also be able to find one through just doing a Google search too. Though, with Google you might have better luck looking up the part number for the main PCB board, which is CG2-2749
