Repairing Casio Exilim EX-Z850 Motherboard

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This repair guide will cover how to replace the motherboard.

Image #1

Add Note Edit Step 1 — Motherboard  ¶ 

  • Remove the four screws on the side with the speaker.

Image #1

Add Note Edit Step 2  ¶ 

  • Remove the four back screws on the bottom of the camera.

  • Note: Bottom screws are longer than the top ones, so label accordingly for easy reassembly.

Image #1

Add Note Edit Step 3  ¶ 

  • Remove the four screws on the side opposite of the speaker.

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Add Note Edit Step 4  ¶ 

  • Once all screws have been removed, gently pry open bottom casing.

  • With tweezers, carefully remove ribbon from LCD screen.

  • Set bottom casing aside.

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Add Note Edit Step 5  ¶ 

  • Pry apart the top casing using tweezers.

  • Set the top casing aside.

  • Note: Bottom left screw on board is orange and the longest.

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Add Note Edit Step 6  ¶ 

  • Use tweezers or prongs to pry the LCD screen off from the opening.

  • Note: The bottom of the LCD screen is attached to the frame by a few pieces of black tape.

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Add Note Edit Step 7  ¶ 

  • Lift up the LCD screen, slowly move it to the other side.

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Add Note Edit Step 8  ¶ 

  • Pry off the LCD casing.

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Add Note Edit Step 9  ¶ 

  • Flip open the connector holding the ribbon.

  • Pull out the LCD screen with the ribbon from the camera.

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Add Note Edit Step 10  ¶ 

  • Remove two screws on the side where the battery is located.

  • Remove the lanyard loop after the screws come off.

  • Slowly pull the side casing so it becomes dislocated from the top of the camera frame.

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Add Note Edit Step 11  ¶ 

  • On the front of the camera near the flash flip the connector holding the ribbon.

  • Remove the ribbon from the connector.

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Add Note Edit Step 12  ¶ 

  • Carefully remove the L shaped frame from the camera.

  • At the bottom of the camera the L shaped frame is being held in by two plastic bumps and a metal tab.

  • Pop the frame off the bumps and tabs.

  • Note: There is a yellow and orange wire soldered onto the camera. Be careful not to pull them off.

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Add Note Edit Step 13  ¶ 

  • On the logic board next to the lens is a connector with a ribbon.

  • Flip the connector and remove the ribbon.

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Add Note Edit Step 14  ¶ 

  • Remove the frame on the back side of the camera where the LCD screen was.

  • Remove the two screws connecting the frame with the camera.

  • Slowly pry off the frame from the camera.

  • After removing the frame a plastic piece with two yellow button connections should fall off.

  • Note: This plastic piece is soldered to two wires a yellow and orange one.

Image #1

Add Note Edit Step 15  ¶ 

  • On the back of the camera where the LCD screen was, remove 3 screws located behind the lens.

Image #1

Add Note Edit Step 16  ¶ 

  • Remove the large orange ribbon previously held in by screws from the camera.

Image #1

Add Note Edit Step 17  ¶ 

  • On the backside of the camera where the indicator lamp is located remove the two screws.

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Add Note Edit Step 18  ¶ 

  • On the side of the indicator lamp remove a screw.

  • On the front side of the indicator lamp remove the a screw.

  • This should remove the indicator lamp from the lens.

Image #1 Image #2

Add Note Edit Step 19  ¶ 

  • Desolder the lens from the logic board.

  • Desolder the wire from the logic board.

  • The logic board is now detached from the rest of the camera.

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