Introducción

In this guide we will be replacing the backup battery for the TI-92.

The first step to any repair operation is to remove the front cover.
  • 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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Orientate the calculator with the top facing towards you.
  • 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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  • "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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  • Before removing the backup battery make sure your AA batteries are installed so that there is no loss of information.

  • Using a #00 Philip Screwdriver remove the 19mm screw located near the center of the back of the calculator on the panel with words "Test Access"

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  • Remove the screw and lift the panel to access battery.

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  • The backup battery can now be seen underneath a small metal cover held by a screw.

  • Using the same screwdriver, unscrew the 4.6mm screw located under the panel and left of the backup battery.

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  • Remove the metal cover keeping the backup battery in place.

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  • Use an Ipod Opening Tool or a similar tool to pull up on the right side of the backup battery.

  • The battery should pop out of position.

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  • After the battery has been tilted out of its socket, simply remove it with your hands.

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Conclusión

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

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Equipo

Cal Poly, Team 15-51, Garner Spring 2010 Miembro de Cal Poly, Team 15-51, Garner Spring 2010

CPSU-GARNER-S10S15G51

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