Introduction
For this guide you will remove all of the internal components in order to replace the buttons.
What you need
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Remove the calculator's protective cover.
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Place the calculator face down.
Ask FixBot
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Using a Phillips #1 screwdriver, remove the six 6mm screws from the back of the case and place them to the side.
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Start from the notches on the top edge and use your fingers or a prying tool to carefully pry the back cover from the calculator.
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Use a Phillips #00 screwdriver to remove the two 7.5 mm screws holding the battery cover to the case.
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Use your finger to move the battery cover to the side.
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Use the flat side of a spudger to remove the battery by lifting the bottom edge.
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After removing the battery, use a Phillips #00 screwdriver to take out the 4.5mm screw directly to the right of the solar panel.
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Next, use a Phillips #00 screwdriver to remove the two screws located on each side of the striped ribbon between the two green circuit boards.
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Carefully chisel off the 11 circular pieces that connect the lower circuit board to the calculator.
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Lift the top edge of the solar panel with a finger and slide it away from the circuit board to disconnect it from the calculator.
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Carefully pry the screen out of the calculator with a prying tool or spudger.
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Pry the lower circuit board from the calculator by inserting a prying tool between the base of the calculator and the circuit board.
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Grab one of the top corners of the gray rubber button pad and peel it off of the buttons.
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Tool used on this step:Tweezers$4.99
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Locate the button that needs replacement and lift it out of the calculator with tweezers.
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To reassemble your device, follow these instructions in reverse order.
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Team
Cal Poly, Team 11-52, Amido Spring 2014 Member of Cal Poly, Team 11-52, Amido Spring 2014
CPSU-AMIDO-S14S11G52
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