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Texas Instruments TI-92 Back Case Disassembly

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In this guide we will be showing how to remove the TI-92's back case to get to inner components.

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  1. Texas Instruments TI-92 Back Case Disassembly, Back Cover: crwdns2935265:01crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Texas Instruments TI-92 Back Case Disassembly, Back Cover: crwdns2935265:01crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Texas Instruments TI-92 Back Case Disassembly, Back Cover: crwdns2935265:01crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • The first step to any repair operation is to remove the front cover.

    • Grab the back of the calculator with one hand and the cover with the other.

    • Pull the cover off from one of the sides for easy removal.

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  2. Texas Instruments TI-92 Back Case Disassembly: crwdns2935265:02crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Texas Instruments TI-92 Back Case Disassembly: crwdns2935265:02crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Orientate the calculator with the top facing towards you.

    • Slide the locking tab,found on the top part of the calculator, to the unlock position.

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  3. Texas Instruments TI-92 Back Case Disassembly: crwdns2935265:03crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Texas Instruments TI-92 Back Case Disassembly: crwdns2935265:03crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • "Locking Tab"

    • To remove the back cover, slide the cover away from the locking tab towards the bottom of the calculator until the cover no longer slides.

    • Then with the front of the calculator facing down, pull up on the back cover.

    • The calculator should now be orientated with the front facing down, as shown in picture 2.

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  4. Texas Instruments TI-92 Back Case Disassembly, Batteries: crwdns2935265:04crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Texas Instruments TI-92 Back Case Disassembly, Batteries: crwdns2935265:04crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Texas Instruments TI-92 Back Case Disassembly, Batteries: crwdns2935265:04crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • The Batteries are now exposed and the calculator is face down with the back towards you.

    • Remove the bottom batteries by pressing the battery towards you while pulling it out from the far end.

    • If you can not do the previous step with your finger try using a flat ended tool such as an Ipod opening tool.

    • After the bottom battery has been removed push or slide the other(top) battery towards you until it is fully exposed in the battery slot.

    • Now simply remove the battery.

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  6. Texas Instruments TI-92 Back Case Disassembly, Texas Instruments TI-92 Back Case Disassembly: crwdns2935265:05crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Texas Instruments TI-92 Back Case Disassembly, Texas Instruments TI-92 Back Case Disassembly: crwdns2935265:05crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Texas Instruments TI-92 Back Case Disassembly, Texas Instruments TI-92 Back Case Disassembly: crwdns2935265:05crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Using a Philips Screwdriver #00 unscrew the twelve 11.8mm screws shown in the picture and located on the back of the calculator.

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  7. Texas Instruments TI-92 Back Case Disassembly: crwdns2935265:06crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Unscrew the 19mm screw located near center of the back of the calculator.

    • Remove the panel being held by the screw.

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  8. Texas Instruments TI-92 Back Case Disassembly: crwdns2935265:07crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Using the same Phillips screwdriver, unscrew the remaining three 11.8mm screws.

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  9. Texas Instruments TI-92 Back Case Disassembly: crwdns2935265:08crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Texas Instruments TI-92 Back Case Disassembly: crwdns2935265:08crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Using the Ipod Opening Tool pull up on both sides of the rectangular module while keeping the rest of the calculator flat on a surface face down

    • You may get a lot of resistance from the module. Do not use too much force as you risk damage. Use small amounts of force to work the module out.

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  10. Texas Instruments TI-92 Back Case Disassembly: crwdns2935265:09crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Texas Instruments TI-92 Back Case Disassembly: crwdns2935265:09crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Pull out the rectangular module when it is finally loose enough.

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  11. Texas Instruments TI-92 Back Case Disassembly: crwdns2935265:010crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Texas Instruments TI-92 Back Case Disassembly: crwdns2935265:010crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Now pull up on the back cover of the calculator while holding the rest of it flat on a surface.

    • Be careful not to tilt the front of the calculator at this point. The keyboard buttons are now unsupported and will fall out of place.

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

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Daniel Maldonado

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Cal Poly, Team 15-51, Garner Spring 2010 crwdns2935289:0Cal Poly, Team 15-51, Garner Spring 2010crwdne2935289:0

CPSU-GARNER-S10S15G51

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