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This guide shows the step by step process of how to disassemble a TI-89 Titanium calculator in order to replace the power button. This guide may also be followed in order to replace any of the other buttons on the calculator. This process requires few tools and should only take thirty minutes. Please be careful during the disassembly to not damage the internals of the calculator.
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Remove the six T6 screws from the back of the calculator.
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Unscrew the Phillips screw on the internal battery cover.
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Using a spudger or similar prying tool carefully pop the back of the calculator off.
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Remove the six Phillips head screws from the circuit board.
Mine also had a aluminum shielding. No particular impact on the repair. ust removed it by unscrewing two lower screws.
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It would be great if you always included a high res photo of the circuit board of both sides. I don’t usually repair my products, but I come to iFixit often to know what the inside of my devices looks like.
To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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Michigan Tech, Team S5-G3, Galliah Fall 2017 crwdns2935289:0Michigan Tech, Team S5-G3, Galliah Fall 2017crwdne2935289:0
MTU-GALLIAH-F17S5G3
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Thank you, fixed my sticky keys / juice spill damage.
