Ana içeriğe geç

Bu kılavuzda güncel değişiklikler var. En son onaylanmamış sürüme geçin.

Repairing Buttons on Casio fx-300ES Calculator

Neye ihtiyacın var

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

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

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

  4. Repairing Buttons on Casio fx-300ES Calculator: adım 4, 1 resimden 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: adım 5, 3 resimden 1. Repairing Buttons on Casio fx-300ES Calculator: adım 5, 3 resimden 2. Repairing Buttons on Casio fx-300ES Calculator: adım 5, 3 resimden 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.

  6. Repairing Buttons on Casio fx-300ES Calculator: adım 6, 3 resimden 1. Repairing Buttons on Casio fx-300ES Calculator: adım 6, 3 resimden 2. Repairing Buttons on Casio fx-300ES Calculator: adım 6, 3 resimden 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.

  7. Repairing Buttons on Casio fx-300ES Calculator: adım 7, 3 resimden 1. Repairing Buttons on Casio fx-300ES Calculator: adım 7, 3 resimden 2. Repairing Buttons on Casio fx-300ES Calculator: adım 7, 3 resimden 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: adım 8, 1 resimden 1.
    • Refer to this picture if any buttons get misplaced or fall out.

Sonuç

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

4 farklı kişi bu kılavuzu tamamladı.

Daniel Riedeman

Üyelik tarihi: 04/09/15

219 İtibar

1 Kılavuz yazıldı

Ekip

Cal Poly, Team 28-2, Green Spring 2015 Cal Poly, Team 28-2, Green Spring 2015 üyesi

CPSU-GREEN-S15S28G2

4 Üyeler

2 adet Kılavuz yazıldı

4 Yorum

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

Kathryn Webb - Yanıt

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 - Yanıt

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

[deleted] - Yanıt

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 - Yanıt

Yorum Ekle

İstatistikleri Görüntüle:

Son 24 Saat: 7

Son 7 gün: 23

Son 30 gün: 97

Her zaman: 24,710