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Acer Chromebook CB5-312T-K 8Z9 Secondary Circuit Board Replacement

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  1. Acer Chromebook CB5-312T-K 8Z9 Secondary Circuit Board  Replacement, Acer Chromebook CB5-312T-K 8Z9 Back Cover: crwdns2935265:01crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Acer Chromebook CB5-312T-K 8Z9 Secondary Circuit Board  Replacement, Acer Chromebook CB5-312T-K 8Z9 Back Cover: crwdns2935265:01crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • First begin by flipping the laptop on its back and having the back cover face you directly.

    • Then unscrew the ten Phillips head screws that hold down the back cover using a Phillips #0 Screw Driver.  

  2. Acer Chromebook CB5-312T-K 8Z9 Secondary Circuit Board  Replacement: crwdns2935265:02crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Using a plastic spudger, open the back cover and remove it from the laptop.

  3. Acer Chromebook CB5-312T-K 8Z9 Secondary Circuit Board  Replacement, Secondary Circuit Board: crwdns2935265:03crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Acer Chromebook CB5-312T-K 8Z9 Secondary Circuit Board  Replacement, Secondary Circuit Board: crwdns2935265:03crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Acer Chromebook CB5-312T-K 8Z9 Secondary Circuit Board  Replacement, Secondary Circuit Board: crwdns2935265:03crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Identify the port that is connected to the speaker.

    • Using tweezers, separate the cable from the port.

  4. Acer Chromebook CB5-312T-K 8Z9 Secondary Circuit Board  Replacement: crwdns2935265:04crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Acer Chromebook CB5-312T-K 8Z9 Secondary Circuit Board  Replacement: crwdns2935265:04crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Find and remove the blue tape from the circuit board.

  5. Acer Chromebook CB5-312T-K 8Z9 Secondary Circuit Board  Replacement: crwdns2935265:05crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Acer Chromebook CB5-312T-K 8Z9 Secondary Circuit Board  Replacement: crwdns2935265:05crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Acer Chromebook CB5-312T-K 8Z9 Secondary Circuit Board  Replacement: crwdns2935265:05crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Remove the black tape from the port.

    • Using tweezers, separate the cable from the port.

  6. Acer Chromebook CB5-312T-K 8Z9 Secondary Circuit Board  Replacement: crwdns2935265:06crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Acer Chromebook CB5-312T-K 8Z9 Secondary Circuit Board  Replacement: crwdns2935265:06crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Acer Chromebook CB5-312T-K 8Z9 Secondary Circuit Board  Replacement: crwdns2935265:06crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Identify the two Phillips screws.

    • Remove the two screws holding down the board with a J1 Phillips screwdriver.

    • Gently lift the board from the Chromebook.

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

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Cole O'Neal

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University of North Texas, Team S1-G4, Thompson Fall 2017 crwdns2935289:0University of North Texas, Team S1-G4, Thompson Fall 2017crwdne2935289:0

UNT-THOMPSON-F17S1G4

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Any ideas about where to purchase this part? I am almost certain that it is the problem with my sound. Also, I can get to it no problem, but I am struggling finding a replacement part.

littlemas2 - crwdns2934203:0crwdne2934203:0

I have looked on numerous pages on google, both with the part number and with the Chromebook model number and have yet to be able to find a supplier.

littlemas2 -

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