Managing Texas Instruments TI-92 Keyboard
Daniel Maldonado and 6 other contributors
Last updated on May 7, 2024
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Introduction
Go to step 1 ↓In this guide we will show you how to access the keyboard.
What you need
Tools
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Grab the back of the calculator with one hand and the cover with the other.
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Pull the cover off from one of the sides for easy removal.
Ask FixBot
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Orientate the calculator with the top facing towards you.
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Slide the locking tab,found on the top part of the calculator, to the unlock position.
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"Locking Tab"
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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.
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Then with the front of the calculator facing down, pull up on the back cover.
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The calculator should now be orientated with the front facing down, as shown in picture 2.
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Remove the bottom batteries by pressing the battery towards you while pulling it out from the far end.
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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.
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Now simply remove the battery.
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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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Unscrew the 19mm screw located near center of the back of the calculator.
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Remove the panel being held by the screw.
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Using the same Phillips screwdriver, unscrew the remaining three 11.8mm screws.
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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
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Now pull up on the back cover of the calculator while holding the rest of it flat on a surface.
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Here we will use the front panel, separate from the motherboard
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Remove the rubber contact lying on top of the keys.
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Tool used on this step:Tweezers$4.99
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With the rubber contact removed the keys can now be removed to be replaced, cleaned, or manipulated in other ways.
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To aid the removal of individual keys you can use the Ipod Opening Tool or preferably a pair of tweezers.
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When placing the keys back into the faceplate you have to make sure that they are going in the right direction.
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You can tell which way is up by a semicircular extrusion on the back of a key.
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The gray and blue keys have the extrusion on the upper left hole looking at the back of the key.
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The black keys on the other hand have the extrusions on the lower left hole looking at the back of the key.
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To reassemble your device, follow these instructions in reverse order.
Team
Cal Poly, Team 15-51, Garner Spring 2010 Member of Cal Poly, Team 15-51, Garner Spring 2010
CPSU-GARNER-S10S15G51
5 Members
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