iFixit - Answers With Device "Texas Instruments TI-83 Plus"

Texas Instruments TI-83 Plus: One of the button rows doesn’t work

Thu, 16 Oct 2025 07:42:33 -0700

The 2nd to bottom row of buttons, specifically Sto→, 1, 2, 3, and +, isn’t working. They were working fine until one day they stopped working. I use the calculator a lot so I would appreciate any answers because it’s $100 to buy a new one.

Texas Instruments TI-83 Plus: Why Do I have to put preasure on the screen?

Tue, 15 Jul 2025 21:31:32 -0700

I have to put pressure on the screen for the pixels not to be super dim to the point of barely being seen.

⟐ Answered July 15, 2025 at 21:31 MST

Texas Instruments TI-83 Plus: Calculator wont turn on

Wed, 15 Jan 2025 19:14:29 -0700

I tried everything that I could find on the troubleshooting, but nothing works.

Help PLEASE!!!

⟐ Answered January 15, 2025 at 19:14 MST

Texas Instruments TI-83 Plus: Top screen cable appears slightly disconnected

Fri, 13 Sep 2024 10:22:52 -0700

My TI-83+ recently ran into the infamous glitchy screen issue, and I after checking the bottom screen cable using a multimeter to the best of my abilities, I am pretty sure that the top cable is the problem. Upon closer inspection, it looks like the top cable is slightly disconnected on one side, see images:

(The lines of melted cable are from my poor attempt at solving the issue using a cheap soldering iron, under the assumption that the problem was with the adhesive.)

Is it possible that my screen problems are due to this slight misalignment if the screen cable, and if so, how do I solve the issue?

Edit: After further thought, I think only the black part, which I assume to be the adhesive is misaligned. My question still stands though.

⟐ Answer accepted September 13, 2024 at 10:22 MST

Texas Instruments TI-83 Plus: How do you make the screen stay dark by default?

Thu, 08 Feb 2024 08:19:10 -0700

My screen is dark by default, I was trained to reset my calculator after each equation or session. When I do this, my screen's contrast turns faint and I have to adjust. Is there a way I can make it stay dark without having to reconfigure?

⟐ Answer accepted February 08, 2024 at 8:19 MST

Texas Instruments TI-83 Plus: TI-83 Plus keeps going blank when it get's to the bottom of the screen

Sat, 04 Nov 2023 11:05:25 -0700

I have a TI-83 Plus Silver Edition that I just recently purchased because my other one was having this issue, and now this new one is having the same issue. What happens is I'll be typing stuff in and once the numbers get to the bottom of the screen, it just shuts off and I have to press 2nd on to fully shut it off before I can get the screen to show up again. I just gave it new batteries, including a new cell battery and I tried resetting it. Sometimes with this new calculator the screen will just randomly go blank before I've even reached the bottom of the screen.

Basically, either the screen shuts off or it turns really dark and a bunch of black lines appear when I reach the bottom of the screen. Does anyone know how to fix this? I bought it used, maybe somethings worn out idk.

Texas Instruments TI-83 Plus: dead pixel line on screen

Sun, 05 Nov 2023 11:45:19 -0700

i just recently got my self a calculator from US,it has a dead pixel line. Anyway i can fix it?

⟐ Answer edited November 05, 2023 at 11:45 MST

Texas Instruments TI-83 Plus: Repair/Replace Battery Compartment Spring

Wed, 14 Dec 2022 12:21:49 -0700

One of the springs within the battery compartment broke. Is it possible to replace the spring/spring assembly?

⟐ Commented December 14, 2022 at 12:21 MST

Texas Instruments TI-83 Plus: How can my calculator be fixed after water damage?

Mon, 05 Sep 2022 02:50:46 -0700

I have a Texas instrument 83 calculator that I bought in September, I have used it for only three month. Fortunaly around December, My water bottle got opened in my backpack and soaked my calculator. I try to dry the outside of my calculator and just let it dry inside for few days but after that I was not able to use it because it won’t turn on. I don’t if there is any damage water can cause inside the calculator. Is there anything that I can possibly do to have my calculator work again. Any place I can go. Please let me know ASAP. My email is ElroiKibret2015@gmail.com.

Thank you!!

⟐ Commented September 05, 2022 at 2:50 MST

Texas Instruments TI-83 Plus: My calculator keeps rejecting files.

Sun, 04 Sep 2022 00:46:05 -0700

So I have a TI-83 Plus calculator that is using a SilverLink Cable and it will not work with TI Connect. Every time I transfer a file, it keeps saying "Error in xmit". HOW DO I FIX!!!!!!

⟐ Answer edited September 04, 2022 at 0:46 MST

Texas Instruments TI-83 Plus: How do I fix nothing working but contrast?

Sat, 21 May 2022 10:08:50 -0700

When the calculator turns on, the only function working is changing the contrast. You can put the contrast up and down, but you can't see anything being entered at any contrast. It seemed like it was the buttons, so I cleaned it, but it didn't seem to work.

⟐ Commented May 21, 2022 at 10:08 MST

Texas Instruments TI-83 Plus: checkerboard cursor is displayed when I turn it on.

Fri, 17 Sep 2021 06:54:31 -0700

do i need to reset , calculator has been with me since 2016, i might need a new one but it does not let me get past the checkerboard curso screen . its a dark checkerboard screen everytime i turn it on. help please

Texas Instruments TI-83 Plus: The c7 capacitor on the the pcb seems to be damaged.

Mon, 24 May 2021 20:13:07 -0700

I took apart my TI-83 plus to see what was wrong with it, and I found out that the c7 capacitor does not work properly. Does anyone know what the c7 capacitor is so I can replace it?

⟐ Commented May 24, 2021 at 20:13 MST

Texas Instruments TI-83 Plus: Calculator no longer working after opening it up

Fri, 27 Nov 2020 12:42:20 -0700

Hello I tried to clean the keyboards of my calculator by taking apart according to YouTube but when I put it back together the screen just goes in and out sometimes and shows a lot of lines but nothing clear. I remember I had to pull back the thin metal or aluminum sheet to get to the keys but I put it back. Should there be anything specific to look at when I open it to see why it’s doing that?

⟐ Answer accepted November 27, 2020 at 12:42 MST

Texas Instruments TI-83 Plus: Can Battery corrosion damage be fixed?

Wed, 02 Sep 2020 12:33:45 -0700

The batteries corroded and now it won't turn on even with new batteries. I tried to clean it but I didn't really know what to do,

⟐ Commented September 02, 2020 at 12:33 MST

Texas Instruments TI-83 Plus: New Batteries, TI-83 will not turn on No Pixels

Sat, 28 Mar 2020 23:02:06 -0700

TI-83 has fully charged AAA bastteries. Will not turn on. No pixels. Where is the location of the neared TI Repair center located in Tucson AQrizona. Please advise as soon as possible. Thanks in advance.

⟐ Marked as duplicate March 28, 2020 at 23:02 MST

Texas Instruments TI-83 Plus: New Batteries, TI-83 will not turn on

Sat, 28 Mar 2020 23:02:06 -0700

TI-83 Plus will not turn on when new batteries have been inserted. No corossion, Batteries all at 1.54 volts. What is wrong and can it be repaired?

⟐ Marked as duplicate March 28, 2020 at 23:02 MST

Texas Instruments TI-83 Plus: Is it possible to increase archive capacity

Fri, 06 Mar 2020 10:24:57 -0700

If I were to obtain a higher capacity version of the eeprom that is used for archive memory (same chip series, same manufacturer, higher capacity variant), and removed the original eeprom chip and soldered the new one on instead, would the TI-83+ be capable of :

a. Using it as archive memory at all?

b. Utilizing the full capacity of the eeprom?

c. Even running the OS properly?

⟐ Answer accepted March 06, 2020 at 10:24 MST

Texas Instruments TI-83 Plus: Where can I get a replacement for my IO port

Fri, 08 May 2020 04:08:40 -0700

Someone tried to jam an ordinary headphone jack in there and ended up splitting the entire jack into pieces, i am unable to connect with the cable i just bought (and was hoping that it might still work but wasn’t expecting much). Where can i buy a new part for it? I can do the soldering myself but just need a new part.

⟐ Answer edited May 08, 2020 at 4:08 MST

Texas Instruments TI-83 Plus: My screen is dimming when lots of pixels are dark, how do I fix it?

Wed, 04 Dec 2019 11:15:12 -0700

The screen on my TI-83 keeps becoming dim when I rapidly type numbers, or go into certain things like the finance app. I think it's because there are too many pixels that are black that it seems to refuse to show up. Is there a way to fix it without opening it up, or do I have to order a replacement screen?

⟐ Answer accepted December 04, 2019 at 11:15 MST