Repairing Buttons on Casio fx-300ES Calculator
Введение
Перейти к шагу 1Is a button on your calculator hard to push or stuck in place? This inconvenience can be easily fixed with this guide. You will be removing components of your calculator in order to reveal the buttons and then carefully making the necessary changes. In no time you will have your calculator up and running again.
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Remove the six 5 mm screws on the back of the calculator.
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Carefully remove the back plate to reveal the circuit board and the battery.
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Remove the four 4 mm screws from the circuit board.
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Carefully lift the circuit board while leaving the grey rubber piece face down.
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Simply flip the circuit board and the screen over but do not remove them fully.
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Now lift the grey rubber piece off to reveal the individual buttons.
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To remove the buttons you can use your screwdriver and lightly flip them out of their individual spaces.
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You can now access all the buttons and make any alterations needed.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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Команду
Cal Poly, Team 28-2, Green Spring 2015 Участник Cal Poly, Team 28-2, Green Spring 2015
CPSU-GREEN-S15S28G2
4 членов
Автор 2 руководств
5 Комментариев
Great photos make sure to replace the stock photos with those you take. Maybe retake photos with white background.
my answer key button not working. when i press button it shows the X10 so what can i do plzz give tips for repairing
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.
