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Texas Instruments TI-80 Back Casing Replacement

Introduction

This guide demonstrates and describes proper removal and replacement of the back casing. It is needed to access other parts for repair or replacement.

What you need

  1. Texas Instruments TI-80 Back Casing Replacement, Batteries: step 1, image 1 of 1

    • Locate battery cover on the back of the case.

    • Slide battery cover to the right reveal the batteries.

    Edit

  3. Texas Instruments TI-80 Back Casing Replacement: step 2, image 1 of 1

    • Remove battery cover.

    • Slide the red lock down.

    • Slide the metal tab to the right of the top battery.

    • Remove the 3-Volt Lithium Coin Cell Battery.

    • Slide the red lock up.

    • Slide the metal tab to the right of the bottom battery.

    • Remove the 3-Volt Lithium Coin Cell Battery.

    Edit

  4. Texas Instruments TI-80 Back Casing Replacement, Back Case: step 3, image 1 of 3 Texas Instruments TI-80 Back Casing Replacement, Back Case: step 3, image 2 of 3 Texas Instruments TI-80 Back Casing Replacement, Back Case: step 3, image 3 of 3

    • Using a Torx, T-6 star-bit screwdriver, unscrew four 7.38 mm screws from battery housing.

    • Unscrew four 7.15 mm screws from back casing.

    • Using the blue plastic opener tool along the seam of the case, pry off front casing.

    • Start prying from the bottom of the calculator as the casing hooks into the top.

    Edit
Conclusion

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

Author

with 4 other contributors

Calvin

Member since: 01/08/15

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Team

Eastern Washington University, Team 1-1, Carnegie Winter 2015 Member of Eastern Washington University, Team 1-1, Carnegie Winter 2015

EWU-CARNEGIE-W15S1G1

4 Members

8 Guides authored

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