Tools Featured in this Teardown

Introduction

This guide outlines the steps in tearing down your camera to its basic components.

This teardown is not a repair guide. To repair your Canon PowerShot S400, use our service manual.

Unless stated otherwise, use a Phillips #00 screwdriver to remove all screws. On the backside of the camera, remove the 4.75 mm screw that sits at the top right corner.
  • Unless stated otherwise, use a Phillips #00 screwdriver to remove all screws.

  • On the backside of the camera, remove the 4.75 mm screw that sits at the top right corner.

  • Remove the four 4.75 mm screws that sit at the bottom of the camera.

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On the side of the camera, remove the two 4.75 mm screws that sit near the USB digital terminal.
  • On the side of the camera, remove the two 4.75 mm screws that sit near the USB digital terminal.

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On the side of the camera, remove the four 4.75 mm screws that sit near the wrist strap mount. Remove the two small metal plates, which the four screws held in place. Remove the two small metal plates, which the four screws held in place.
  • On the side of the camera, remove the four 4.75 mm screws that sit near the wrist strap mount.

  • Remove the two small metal plates, which the four screws held in place.

Remove the two small metal plates, which the four screws hold in place.

Mel Moss - Reply

When removing the casing, do not drop the small black plastic piece. This piece sits in a small gap above the lens, to the left of the flash, and underneath the camera case. Remove the small black plastic piece and set it aside.
  • When removing the casing, do not drop the small black plastic piece. This piece sits in a small gap above the lens, to the left of the flash, and underneath the camera case.

  • Remove the small black plastic piece and set it aside.

  • If necessary, use tweezers to remove the small black plastic piece.

  • Detach the front case and back case.

Suggest adding an image to show which piece the guide is referring to. It is difficult to understand without the camera.

Change the following directions to: "If necessary, use a tweezers to carefully remove the small black plastic piece."

Mel Moss - Reply

Do not remove the metal plate this step refers to. Removal at this step may damage the ribbon cable. Wait until the next step to remove the plate.
  • Do not remove the metal plate this step refers to. Removal at this step may damage the ribbon cable. Wait until the next step to remove the plate.

  • Remove the 3.5 mm screw that sits on the metal plate at the bottom of the camera.

  • Remove the two other 3.5 mm screws that sit on the side, to the left of the screw you just removed.

  • In the image, we have already removed some of the screws.

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A ribbon cable attaches to the metal plate and to the main circuit board, on the front of the camera. Gently release the black latch. Remove the ribbon cable and metal plate assembly.
  • A ribbon cable attaches to the metal plate and to the main circuit board, on the front of the camera.

  • Gently release the black latch.

  • Remove the ribbon cable and metal plate assembly.

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On the backside of the camera, remove the 3.5 mm screw that sits to the left of the viewfinder and above the LCD screen. Remove the second 3.5 mm screw that sits directly above the LCD screen.
  • On the backside of the camera, remove the 3.5 mm screw that sits to the left of the viewfinder and above the LCD screen.

  • Remove the second 3.5 mm screw that sits directly above the LCD screen.

  • Gently detach the ribbon cable.

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Locate the ribbon cable on the main circuit board, which sits below the lens.
  • Locate the ribbon cable on the main circuit board, which sits below the lens.

  • Gently release the black latch on the ribbon cable connector and detach the ribbon cable.

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Remove the LCD screen and set it aside. Remove the LCD screen and set it aside.
  • Remove the LCD screen and set it aside.

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On the main circuit board, gently release the black latches of the four ribbon cables.
  • On the main circuit board, gently release the black latches of the four ribbon cables.

  • Gently detach the ribbon cables.

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Detach the white-capped and green-capped wires, which sit near the flash. Detach the white-capped and green-capped wires, which sit near the flash.
  • Detach the white-capped and green-capped wires, which sit near the flash.

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Using a spudger, gently detach the shutter button assembly from the camera.
  • Using a spudger, gently detach the shutter button assembly from the camera.

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Remove the four 3.5 mm screws that hold the main circuit board.
  • Remove the four 3.5 mm screws that hold the main circuit board.

  • In the image, we have already removed some of the screws.

  • Do not remove the main circuit board yet.

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Do not completely remove the main circuit board from the camera. A soldered ribbon cable still attaches the board to the camera. Complete removal would break the soldering points. In a hinge-like motion, gently lift the bottom of the main circuit board, which is the side without the soldering points.
  • Do not completely remove the main circuit board from the camera. A soldered ribbon cable still attaches the board to the camera. Complete removal would break the soldering points.

  • In a hinge-like motion, gently lift the bottom of the main circuit board, which is the side without the soldering points.

  • Gently detach the white ribbon cable from the underside of the main circuit board.

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Do not attempt this next step unless you have soldering experience and feel comfortable desoldering. Otherwise you may damage the camera. Gently desolder the two ribbon cables attached to the motherboard.
  • Do not attempt this next step unless you have soldering experience and feel comfortable desoldering. Otherwise you may damage the camera.

  • Gently desolder the two ribbon cables attached to the motherboard.

  • Remove the motherboard.

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This step exposes the flash capacitor, a black cylindrical object, that is a part of the flash assembly. The capacitor can cause electrical shock. Working with the lens-flash assembly, remove the three 3.45mm screws located on the metal plate.
  • This step exposes the flash capacitor, a black cylindrical object, that is a part of the flash assembly. The capacitor can cause electrical shock.

  • Working with the lens-flash assembly, remove the three 3.45mm screws located on the metal plate.

  • Separate the flash assembly from the lens assembly.

  • Set aside the flash assembly.

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A ribbon cable prevents complete separation of the viewfinder and the lens assembly.
  • A ribbon cable prevents complete separation of the viewfinder and the lens assembly.

  • Remove the three 2.5mm screws connecting the viewfinder to the rest of the lens assembly.

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Remove the three 2.5mm screws underneath the flex circuit.
  • Remove the three 2.5mm screws underneath the flex circuit.

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Remove the small 1.5mm screw attaching the metal plate to the lens assembly.
  • Remove the small 1.5mm screw attaching the metal plate to the lens assembly.

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Displayed here are all of the components of the camera.
  • Displayed here are all of the components of the camera.

  • To reassemble the camera, follow all of the steps in reverse order.

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Justin

Member since: 01/17/2011

130 Reputation

1 Guide authored

Team

Cal Poly, Team 5-19, Amido Winter 2011 Member of Cal Poly, Team 5-19, Amido Winter 2011

CPSU-AMIDO-W11S5G19

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One Comment

FYI My S400 would not start sometimes. If I banged it in the palm of my hand occasionally it would then work. I was also having terrible trouble with batteries not working and showing low charge when they had been charged.. I opened it up as a last resort. On the front left side below the shutter button there was a small ribbon cable that under a magnifying glass I could see was slightly out of line. I reseated it and the camera has acted flawlessly since.

dwoodusa90069 - Reply

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