Texas Instruments TI-92 Instruction Manual

Installing Texas Instruments TI-92 Motherboard
In this guide we will show how to access the motherboard and how to separate it from other internal
components.
Need to place picture
Installing Texas Instruments TI-92 Motherboard
© 2010 iFixit — CC BY-NC-SA www.iFixit.com Page 1 of 7

Step 1 - Back 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.
Step 2
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.
Installing Texas Instruments TI-92 Motherboard
© 2010 iFixit — CC BY-NC-SA www.iFixit.com Page 2 of 7

Step 3
"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.
Step 4 - Batteries
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.
Installing Texas Instruments TI-92 Motherboard
© 2010 iFixit — CC BY-NC-SA www.iFixit.com Page 3 of 7

Step 5 - repair Back Case
Using a Philips Screwdriver #00 unscrew the twelve
11.8mm screws shown in the picture and located on the
back of the calculator.
Step 6
Unscrew the 19mm screw located near center of the
back of the calculator.
Remove the panel being held by the screw.
Installing Texas Instruments TI-92 Motherboard
© 2010 iFixit — CC BY-NC-SA www.iFixit.com Page 4 of 7

Step 7
Using the same Phillips screwdriver, unscrew the
remaining three 11.8mm screws.
Step 8
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.
Installing Texas Instruments TI-92 Motherboard
© 2010 iFixit — CC BY-NC-SA www.iFixit.com Page 5 of 7

Step 9
Pull out the rectangular module when it is finally loose
enough.
Step 10
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.
Installing Texas Instruments TI-92 Motherboard
© 2010 iFixit — CC BY-NC-SA www.iFixit.com Page 6 of 7

Step 11 - Motherboard
Pull the motherboard up while holding the rest of the
calculator firmly in place
The motherboard has now separated from the rest of
the calculator
To reassemble your device, follow these instructions in reverse order.
This document was last generated on Dec 14, 2010.
Installing Texas Instruments TI-92 Motherboard
© 2010 iFixit — CC BY-NC-SA www.iFixit.com Page 7 of 7