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The TI-83 Plus is a graphing calculator released in 1999 as an upgrade to the TI-83.

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Calculator wont turn on

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

Help PLEASE!!!

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Eric Brasuell, help us out. It would be great if you can tell us what you already tried. That way we will not suggest stuff that does not work for you.

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I put new batteries in, and checked to see that the small cell battery was good, and it was. I took ALL of the batteries out, waited 5 minutes, then put them back in. I took only one battery out, then put it back in while holding the clear button, then again with the delete. That was basically what I could find on the Texas Instruments website, and other support websites.

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I'm willing to bet the internal battery is shot, as is in mine. I'm sure you have swapped the main batteries 4 AAA's if I remember correctly. If you look directly above those you will see a little screw and should be able to replace the internal battery. I don't have the exact version, as I have a TI84 Plus, but I remember the battery compartment being very similar.

Update:

It could be than that the logic board final went kaput. :( I know my buddies went out in a similar fashion. His started having screen graphic issues, than would die soon after replacing the batteries. Have you tried calling Texas instruments to see if maybe they have any other possibilities? Sorry that unless I have the device, and take a look at some of the terminals, I can't think of any possibilities.

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ti83 plus power board contacts wear out. take the calc apart and put a layer of solder on it.

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Is there some kind of tester that TI sells that can diagnose problems. I have 5 TI 83's that won't turn on. I haven't tried changing out the internal battery, but have read on another site that the internal battery will not show as a symptom of DOA. Think I will get at least one internal just to rule out that symptom anyway.

Tom

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there is no tester. you need to use a voltmeter or part swapping. Easiest way is to solder the power contacts together with a wire to see if the screen gets power.

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Hello I need help!!! My TI-83 Plus after changing the batteries and the internal battery, is still giving me a problem.. When I power it on all I see is one horizontal line at the bottom and then it starts to fade and I see nothing at all.

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Same as other answers. There is internal corrosion on the flex cable or power pads. Opening and soldering is required for repair.

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So how do you fix it? After opening and all?

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I have the same problem

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I fix calculators. Usually the power contact corrodes inside the case. And screen flex cables corrode. Ill post a fix sometime, otherwise there r online guides. No power problems cant be diagnosed with a tester. Open it up

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I'm pretty sure u could boot without emergency battery

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What if I was getting data from another calculator but at the end my didn't want to turn on

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I have a problem with my calculator except that its from a different company and a lot older. Its the Casio fx-991W and i found it just now and it ain't working and when i checked the back, it had no batteries but there is a way, we can turn it on even without batteries. Would anyone help me on this one?

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And I am pretty sure it works....its just that it is not working!

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I have H+O Technology Calculator,It does turn on but it only shows black dots all over the screen,Please help me as I have exams in 2 weeks,also this is the only calculator I have,Thanks

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I have replaced the 4 AAA batteries and the internal battery, but the screen will turn on and then immediately turn off. Help!

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Eric Brasuell さん、ありがとうございました!
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