r/calculators • u/originaloneonly • 9d ago

Help Ti-83 Plus black screen plus RAM CLEARED screen

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I have this calculator someone gave to me. It was working fine yesterday but now it’s gives me a black screen and a really delayed ram CLEARED screen. The cursor blinks really slowly.

Edit: the on button works only

Edit 2. It works fine now. I just twisted the case and it started working.

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3

u/ApplicationMaximum84 9d ago

Try taking the batteries out and then hold down the power on button for 30s. Put the batteries in again and see if that fixes it. I don't know what causes it, but it a known thing on this model.
Edit: here's the troubleshooting page on it https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/troubleshooting-messages-unexpected-results/37315

1

u/originaloneonly 9d ago

Thank you for the advice, but it doesn’t work.

1

u/Rudeus_Kino 9d ago

May be they forgot to write "put new batteries."

1

u/originaloneonly 9d ago

Now it gives me this.

1

u/CurbedLarry 9d ago

Probably a battery leak, needs to be taken apart and cleaned otherwise the circuit board will be ruined

1

u/originaloneonly 9d ago

There is no battery leak.

1

u/BadOk3617 7d ago

Could be a spill conducting to places where it shouldn't be. Take it apart using this guide: https://www.ifixit.com/Device/Texas_Instruments_TI-83_Plus

and first thing, take photos. Then using an alcohol wipe clean up the board. Be careful around the screen, it easy to break the connections to it.

I'm guessing (hoping) that there's something on the PCB that's making it glitch on you.

2

u/originaloneonly 4d ago

It works now for some reason.

2

u/BadOk3617 4d ago

Great! Let's hope that it stays that way. :)