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  1. crwdns2882210:0crwdne2882210:0 crwdns2882211:0crwdne2882211:0

    : step 1, image 1 of 3 : step 1, image 2 of 3 : step 1, image 3 of 3
    • Insert the key cap puller into the cracks around the keycap.

    • Twist the tool around the bottom of the keycap.

    • Hold the keyboard down, and pull on the keycap slowly.

    • Pull up as straight as possible.

    • Force required to pull a keycap may vary from soft to heavy.

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    : step 2, image 1 of 3 : step 2, image 2 of 3 : step 2, image 3 of 3
    • Proceed to remove the surrounding keycaps.

  3. crwdns2882210:0crwdne2882210:0 crwdns2882211:0crwdne2882211:0

    : step 3, image 1 of 3 : step 3, image 2 of 3 : step 3, image 3 of 3
    • Flip the keyboard over so that the bottom is facing upward.

    • Slip an opening pick beneath the warranty sticker.

    • Proceed to pull the sticker off to reveal the hole.

  4. crwdns2882210:0crwdne2882210:0 crwdns2882211:0crwdne2882211:0

    : step 4, image 1 of 3 : step 4, image 2 of 3 : step 4, image 3 of 3
    • Use a Phillips #1 Screwdriver to remove the 10 mm screw.

  5. crwdns2882210:0crwdne2882210:0 crwdns2882211:0crwdne2882211:0

    : step 5, image 1 of 3 : step 5, image 2 of 3 : step 5, image 3 of 3
    • Slip an opening tool into the cracks at the indicated points.

    • Pry open carefully.

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    : step 6, image 1 of 3 : step 6, image 2 of 3 : step 6, image 3 of 3
    • Flip the keyboard so that the keys are facing upward.

    • Grab the sides of the top case and pull up gently.

  7. crwdns2882210:0crwdne2882210:0 crwdns2882211:0crwdne2882211:0

    : step 7, image 1 of 3 : step 7, image 2 of 3 : step 7, image 3 of 3
    • Separate the plate from the bottom case slightly.

    • Reach within and remove the daughterboard cable.

  8. crwdns2882210:0crwdne2882210:0 crwdns2882211:0crwdne2882211:0

    : step 8, image 1 of 3 : step 8, image 2 of 3 : step 8, image 3 of 3
    • Turn the plate over.

    • Locate the pins for the key switch.

    • All the key switches are labeled with their ASCII designation.

  9. crwdns2882210:0crwdne2882210:0 crwdns2882211:0crwdne2882211:0

    : step 9, image 1 of 3 : step 9, image 2 of 3 : step 9, image 3 of 3
    • Desolder the pins with a soldering iron and a desoldering pump.

    • Repeat until the pins freely move inside the wells without heat.

    • Placing the soldering iron too close to the PCB may damage it.

  10. crwdns2882210:0crwdne2882210:0 crwdns2882211:0crwdne2882211:0

    : step 10, image 1 of 3 : step 10, image 2 of 3 : step 10, image 3 of 3
    • Wedge two opening tools under the key switch.

    • Pull up gently.

    • If the key switch appears to be immovable, consider repeating step 9.

  11. crwdns2882210:0crwdne2882210:0 crwdns2882211:0crwdne2882211:0

    : step 11, image 1 of 3 : step 11, image 2 of 3 : step 11, image 3 of 3
    • Insert a new key switch into the well with pins corresponding to that of the PCBs.

  12. crwdns2882210:0crwdne2882210:0 crwdns2882211:0crwdne2882211:0

    : step 12, image 1 of 3 : step 12, image 2 of 3 : step 12, image 3 of 3
    • Solder the pins onto the PCB ensuring the solder stays within the wells of the pins.

    • Ensure the pins do not freely move after soldering.

    • Ensure that there is no solder connecting the two pins, as this can possibly cause a short circuit.

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crwdns2878480:0crwdne2878480:0

Kenny Nguyen

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York University, Team S1-G40, Allen Summer 2020 crwdns2886886:0York University, Team S1-G40, Allen Summer 2020crwdne2886886:0

YORK-ALLEN-SU20S1G40

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