Nikon Coolpix L18 Logic Board Replacement

Written By: Aaron
  • Comments: 4
Nikon Coolpix L18 Logic Board Replacement

Difficulty

Difficult

Steps

19

Time Required

15 - 20 minutes

Introduction

In this guide, we will give you step-by-step instructions on how to remove the logic board so that it can be replaced or repaired.

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    • Remove the memory stick from the camera.

    • Remove the batteries from the camera.

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    • Remove all six 4.3mm silver screws along the perimeter of the camera using the Phillips #00 screwdriver.

    • There is one screw hidden under the AV cover that also needs to be removed.

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    • Pry the back cover from the left side of the camera. Remove the cover gently.

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    • Pry back the front cover of the camera starting from the right side.

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    • This is where energy for the flash is stored. Even with batteries removed, if you touch these connections, you can be shocked, depending on if the flash capacitor has a stored charge. It may not have a stored charge, but work around this assuming it does.

    • Newer cameras of decent quality usually have a bleeder resistor to drain the flash capacitor. This may not work anymore and the flash capacitor may still have a charge.

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    • Remove the tape on the right side of the LCD screen.

    • Gently lift the LCD screen from its base.

    • Don't tug on the screen because it is still connected to the motherboard.

    Be very careful not to touch the flash capacitor on far left when lifting the LCD!! It WILL shock you.

    Mark Fraylick -

    Getting the LCD ribbon back "in" is my problem -- hints or suggestions?

    richardkujawa -

    I can't get a feel for how the black clip holds the ribbon - insert the new one at an angle?

    richardkujawa -

    I practiced a few times with the "bad screen" and managed to figure this out. Unfortunately I can't explain how I did it... if some other person can explain how to make the ribbon connection/clip re-install more predictable I think it'd help anyone else who tries the repair.

    richardkujawa -

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    • Lift the black latch connecting the LCD ribbon to the motherboard.

    • Gently pull the LCD ribbon out.

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    • Remove the 6 Phillips #00 screws anchoring the LCD base to the motherboard.

    • Remove the LCD base plate.

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    • Lift the black latch connecting the LCD ribbon to the motherboard.

    • Gently pull the lens ribbon out.

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    • Desolder the connection of the motherboard to the lens ribbon using a soldering iron and desoldering wick.

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    • Lift up the black and copper covering on the left side of the camera.

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    • Pull the wiring at the top right of the camera away from the lens with tweezers.

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    • Remove the cross-hair shaped wire cap to the left of the lens.

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    • Remove the 3 screws holding the lens to the camera frame.

    • Two 3.8mm black Phillips #00 screws on the sides of the lens.

    • One 4.6mm silver Phillips #00 screw on the bottom of the lens.

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    • There is a screw behind flash tube holding lens. Remove it, then gently pull the lens out. Be sure that the lens's ribbon clears the motherboard.

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    • Remove the tape on the top of the logic board.

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    • Remove the 4 Phillips #00 screws holding the top of the logic board onto the camera frame.

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    • Desolder the joint of the top and back of the logic board using a soldering iron and desoldering wick.

    • You will need to have soldering equipment to complete this step.

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    • Move the top of the logic board to the side, exposing the top of the frame.

    • Desolder the two connections on the top right of the logic board using a soldering iron and desolering wick.

    • You will need to have soldering equipment to complete this step.

Conclusion

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

Author

Aaron

Member since: 07/10/10

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