Introduction

Use this repair guide to replace a broken LCD screen on your Canon PowerShot SD850 IS.

  1. Using your fingernail, slide the light gray tab towards edge of camera.
    • Using your fingernail, slide the light gray tab towards edge of camera.

    • Slide the light gray door and pull up to open the door.

      • In the camera shown in the photos, there is not a Memory Card or Battery.

    • Both Battery and Memory Card slots should be visible.

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  2. Use your fingernail and slide the small brown tab towards the edge of the camera.
    • Use your fingernail and slide the small brown tab towards the edge of the camera.

    • The battery will pop up.

    • Pull battery straight out of battery holder.

    • When putting the battery back in, make sure it the battery is oriented so the terminals connect.

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    • Remove the following 4 screws:

      • Two 2.8 mm Phillips #00 at the bottom of the camera.

      • Two 2.75 mm Phillips #00 on the opposite side of the wrist strap.

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    • Open the A/V OUT DIGITAL flap on the side of the wrist strap.

    • Remove the 2.75 mm Phillips #00 under the A/V OUT DIGITAL flap on the side of the wrist strap.

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    • On the bottom of the camera, use your fingernail to slide the light gray tab towards the edge of the camera.

    • Slide light gray door and pull up to open the door.

    • Remove the 8.35 mm Phillips #00 next to the brown tab that holds the battery.

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    • Gently pull the front cover straight out from the camera. This will expose the wiring on the front of the camera.

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    • Remove the 2.75 mm Phillips #00 next to A/V OUT DIGITAL.

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    • Slide the back casing (with the screen protector) off to reveal the LCD and back wiring.

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    • Remove the 1.75 mm Phillips #00 located at the top left of the LCD screen.

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    • Remove the two 3.4 mm Phillips #00 located at the bottom of the camera.

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    • Remove the two metal frames that hold the LCD panel in place.

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    • The LCD screen should now only be attached by two LCD data cables.

      • Lift the screen from the left side and use a spudger or a small flat head screwdriver to flip the black portion of the connector upward to unlock it.

      • Carefully slide the data cable out of the connector.

    When reassembling the camera, the tab that gets flipped up to release the cable will not lock back down into place after the cable is reinserted.

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    • The LCD should still be connected by the backlight cable.

      • To remove the backlight cable, use a spudger or a small flat head screwdriver to unlock the backlight cable.

      • Carefully slide out the backlight cable.

    • The LCD screen can now be fully detached from the camera body.

    How to unlock the backlight cable is not at all clear. This also leads to a problem with how to reinsert and lock the cable while putting the camera back together.

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    • The LCD screen and housing are now in three pieces:

      • LCD screen

      • LCD screen frame

      • LCD back housing

    • The LCD screen itself can now be removed and fixed/replaced.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

One other person completed this guide.

Peter Tran

Member since: 10/06/2010

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Cal Poly, Team 20-7, Maness Fall 2010 Member of Cal Poly, Team 20-7, Maness Fall 2010

CPSU-MANESS-F10S20G7

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