Instructables

Ti-84 Basic Disassembly

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How to disassemble your Ti-84 or Ti-84 silver.

Tools needed:
1) Torex #7 (t-7) screw driver
2) Small Phillips screw driver
 
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Step 2: Remove backup battery cover

Picture of Remove backup battery cover
Remove the back up battery cover, this will require a Phillips screw driver. After cover has been remove *take out the back up battery.*

** WARNING**
Taking out the backup battery will clear your system RAM, which means that all of your saved programs will be gone.

Step 3: Remove rear cover.

Picture of Remove rear cover.
Use your Torx screw driver to remove the 6 screws noted below.

Step 4: Remove 4 rear screws.

After removing all 4 screws take a flathead screw driver or a knife and gently pry the 2 halves of the cover apart at each corner. You will hear it pop a few times, after prying a little cover should come off with ease.

Now that you have removed the rear cover you should see a foil backing over the main circuit board, to remove this you will have to first remove the 2 screws marked below.

Step 6: Keypad

If your keypad didn't come out when you took the circuit board out it will look like this. Just take you keypad out and your Ti-84 is completely dissembled.

Step 7: Finished!

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Now your ti-84 is completely dissembled. Do with it as you please, in my case my keys were sticky so I used some isopropyl alcohol to clean them off.
Bobby7172 years ago
I needed a T6 Torx to disassemble. I had a TI 84 quit working. I ordered a used one on eBay, but the case had a name on the back and showed a lot of wear. I disassembled both to put the parts of one case into the other. Works fine.
plumboy113 years ago
Does anyone know if you can buy and replace the screen on a Ti-84 +. I work for a school district and we have 120 of them 5 years old. Some of the screens have the lcd's busted by kids. Any thoughts from anyone?
Radiosity3 years ago
Thanks for the instructions! This helped me disassemble my TI-84 Plus Silver Edition and turn it into a Gold Edition! The outcome can be seen here.
naurtomoe3 years ago
 im thinking about disassembling my ti-84 so I can custom paint it a bit...will the calculator still function properly after disassembly? I disassembled my ipod mini once and it never worked again...lol
junits154 years ago
would it be possible to swap the front cover for a TI84 Plus one?  to allow for faceplate swaps.
MadManMike (author) 6 years ago
Okay, so funny story. A week after I posted this Instructables a classmate came up to me and asked to see my calculator, he looked at it and said "I think we switched calculators during our last quiz" I looked at the one he had and sure enough there were all the programs I thought I had lost when I removed the backup battery on the one that I took apart. I took apart a classmates calculator thinking it was my own :) lol... I still laugh about it. Any way I had to share it...
HAHA well at leat you didnt break it!
 NIICE!
haha what a noob =P
nice instructable!
would it be easy to upgrade the memory, or can you do that at all?
Here,Check this out
http://usb8x.sourceforge.net/
it has instructions on how to hook a flash drive to your calc
I am not sure about upgrading the memory... I will have to look into it.
jonnyboy3236 years ago
Does anyone know how to silence a button? (When getting really into calculator games in class :-) lol)
Just use it for about a year, and then it gets silent
I think i've gotten a years use of use out of it. lol Thanks, Jonnyboy
Well, maybe it was 2 years... (I've had my 84Silver for 3 years now)
me6 years ago
why would you disassemble your calculator ?
MadManMike (author)  me6 years ago
Do you need an excuse? Like others have said my keys were sticky after spilling a mocha on it :) But I also wanted to take a look at the mainboard, I am thinking of trying to build an external display for it. -Mike
me MadManMike6 years ago
well, OK I admit that there is a lot of interesting stuff in there.
zachninme me6 years ago
His keys were sticky, so he needed to clean them.
me zachninme6 years ago
(removed by author or community request)
GorillazMiko me6 years ago
It's not an excuse.

My Guitar Hero controller buttons were stickyish, so I opened it up to clean them.
Then, that's how I made this Instructable.
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