How to Disassemble a Canon A620


It's fairly common for dust or other foreign particles to become lodged behind the lens of a camera or within gears. It is also frustrating when your camera is dropped, damaging its inner workings. While these unfortunate incidents occur easily, disassembling your camera to correct errors yourself is not easy. As a camera is an electrical device, with many small pieces and a complicated structure, it is important to follow each step carefully and closely to ensure your own safety and the integrity of your Canon A620.

Things You'll Need

  • Can of compressed air
  • Analog voltmeter
  • Phillips-head and flat-head pocket or mini screwdrivers
  • Tweezers
  • Scratch paper
  • Pencil
  • Remove the batteries from the camera to avoid keeping the camera charged, which would increase the chances of electrical shock.

  • Remove the filter adapter from the camera lens by pressing the eject button on the bottom right side of the lens.

  • Remove each of the screws from the outside of the camera, using the Phillips-head mini screwdriver. Because there are many screws and they vary in length, it is recommended that you devise a system to keep track of where each screw came from.

  • Take off the back casing by freeing it from the top latches that secure it. This may require lifting the front casing away from the latches a bit.

  • Remove the front casing from the camera and set it aside. Do not directly touch the circuit board, because of the risk of electrical shock.

  • Take off the top section of the camera with the shutter and zoom dial. Orange ribbon cables are located underneath the top section. Take care to handle them as little as possible by gently using tweezers to move them instead of your fingers.

  • Remove the bottom plate of the camera by removing the screws, to remove the LCD unit. Gently unplug the blue and yellow cables from the connector.

  • Remove the ribbon cable located on the front of the camera, in the bottom right-hand corner. Remove the cable gently, using tweezers.

  • Remove remaining screws securing the LCD unit, and pull the unit away.

  • Remove the remaining screws holding the metal casing together, and loosen the flash unit.

  • Discharge the flash capacitor. The flash capacitor, which looks like a battery, contains electrical energy, and there is danger of electrical shock. To continue with camera disassembly, the flash capacitor must be safely discharged by locating the + and - symbols at the flash capacitor solder joints and applying the analog voltmeter.

  • Set the analog voltmeter to the range closest to 50 volts. Do not allow the probes to touch any other parts of the camera. Apply the red probe to the + lead and the black to the - lead, and hold until the voltage reads zero. This could take a couple of minutes.

    Do not reload camera batteries after this point for any reason, as batteries will recharge the flash capacitor.

  • Remove the cover above the lens assembly by removing the spring that secures it. The back cover of the lens assembly is secured with a few latches. Gently remove the back cover, wriggling it free so as not to break the latches. Once it is removed, gears parts may fall loose. Set the cover aside.

  • Disassemble the lens assembly further. The lens assembly is made up of several cylinders. Remove each of the cylinders, remembering the order in which they were layered.

Tips & Warnings

  • Disassembling your camera allows dust and other particles to enter the mechanism. Before reassembling the device, use the air can to gently blow away dust and debris.
  • There is risk for electrical shock if the camera, especially the flash capacitor, is disassembled improperly or without an analog voltmeter.


  • Photo Credit Jupiterimages/ Images
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