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If nothing is working at all on your calculator and nothing you have tried has worked, you may need to replace the motherboard. If the screen is cracked or damaged, you will need to replace it. This guide will show you how to replace both the motherboard and the screen, because they are attached and cannot be easily separated.
Neye ihtiyacın var
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Insert your index finger in the open slot below the keys.
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Apply a firm upward force until the bottom two tabs located near the bottom of the plate come off.
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Push firmly down on the tab located on the back of the calculator near the center.
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Pull the tab up, lifting it off of the calculator and exposing the batteries.
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Using the Phillips #00 Screwdriver, unscrew the 15 mm screw holding the backup battery cover, located above the main battery area.
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Unscrew the six 8.5 mm screws located on the perimeter of the back cover using the Precision T6 Torx Screwdriver.
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Wedge the large plastic opening tool in the gap at the bottom between the top and bottom covers.
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Apply a gentle downward force to separate the top cover from the bottom cover.
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Wedge the large plastic opening tool in the gaps along each side to unhook the side clips.
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Pull the bottom cover apart from the top cover.
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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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5Kılavuz Yorumları
Where can I buy the screen/motherboard?
Did you find out where to purchase the screen/motherboard? Having trouble finding it online.
Thanks.
any update on where to fin a motherboard/screen? i found a youtube video which showed how to replace the screen flex, by soldering on new wires, and have read that the only way to get parts is from another calculator, can anyone confirm this?
Yeah - I can't find one to buy either. Your instructions look great though.
I don’t believe you can buy the motherboard anywhere. However you can salvage them out of other damaged calculators.