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Repairing Buttons on Casio fx-300ES Calculator

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  1. Repairing Buttons on Casio fx-300ES Calculator, Repairing Buttons on Casio fx-300ES Calculator: Schritt 1, Bild 1 von 2 Repairing Buttons on Casio fx-300ES Calculator, Repairing Buttons on Casio fx-300ES Calculator: Schritt 1, Bild 2 von 2
    • Remove the six 5 mm screws on the back of the calculator.

  2. Repairing Buttons on Casio fx-300ES Calculator: Schritt 2, Bild 1 von 2 Repairing Buttons on Casio fx-300ES Calculator: Schritt 2, Bild 2 von 2
    • Carefully remove the back plate to reveal the circuit board and the battery.

    "the" circuit board and battery.

    Timothy Wong - Antwort

  3. Repairing Buttons on Casio fx-300ES Calculator: Schritt 3, Bild 1 von 3 Repairing Buttons on Casio fx-300ES Calculator: Schritt 3, Bild 2 von 3 Repairing Buttons on Casio fx-300ES Calculator: Schritt 3, Bild 3 von 3
    • Remove the four 4 mm screws from the circuit board.

    remove "all" four screws from ...

    Timothy Wong - Antwort

  4. Repairing Buttons on Casio fx-300ES Calculator: Schritt 4, Bild 1 von 1
    • Be aware of the placement of the blue, black, red, and yellow wires because they will fall out when the next step is taken.

  5. Repairing Buttons on Casio fx-300ES Calculator: Schritt 5, Bild 1 von 3 Repairing Buttons on Casio fx-300ES Calculator: Schritt 5, Bild 2 von 3 Repairing Buttons on Casio fx-300ES Calculator: Schritt 5, Bild 3 von 3
    • Carefully lift the circuit board while leaving the grey rubber piece face down.

    • Simply flip the circuit board and the screen over but do not remove them fully.

    • Make sure the calculator is face down.

    • Buttons are loose do not flip calculator over.

    flip up "the" circuit board

    Timothy Wong - Antwort

  6. Repairing Buttons on Casio fx-300ES Calculator: Schritt 6, Bild 1 von 3 Repairing Buttons on Casio fx-300ES Calculator: Schritt 6, Bild 2 von 3 Repairing Buttons on Casio fx-300ES Calculator: Schritt 6, Bild 3 von 3
    • Now lift the grey rubber piece off to reveal the individual buttons.

    • Buttons are loose make sure they do not come off with the rubber piece.

    to "the" stuck button(s).

    Timothy Wong - Antwort

  7. Repairing Buttons on Casio fx-300ES Calculator: Schritt 7, Bild 1 von 3 Repairing Buttons on Casio fx-300ES Calculator: Schritt 7, Bild 2 von 3 Repairing Buttons on Casio fx-300ES Calculator: Schritt 7, Bild 3 von 3
    • To remove the buttons you can use your screwdriver and lightly flip them out of their individual spaces.

    • You can now access all the buttons and make any alterations needed.

  8. Repairing Buttons on Casio fx-300ES Calculator: Schritt 8, Bild 1 von 1
    • Refer to this picture if any buttons get misplaced or fall out.

Abschluss

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

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Team

Cal Poly, Team 28-2, Green Spring 2015 Mitglied von Cal Poly, Team 28-2, Green Spring 2015

CPSU-GREEN-S15S28G2

4 Mitglieder

2 Anleitungen geschrieben

4 Kommentare

Great photos make sure to replace the stock photos with those you take. Maybe retake photos with white background.

Kathryn Webb - Antwort

my answer key button not working. when i press button it shows the X10 so what can i do plzz give tips for repairing

ayush shukla - Antwort

Halp my board is stuck to the front plate sith super glue from previous owner.

[deleted] - Antwort

I repaired my Casio fx-300w, a similar calculator with similar buttons. My mother, who gave it to me, spilled coffee once when using it in her office. I got rid of the sticky coffee gunk formed nearly 12 years ago.

Matthew Yang - Antwort

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