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I have a EL 9300 that has had the aaa Bateries removed for six years , And now with New batteries installed It won't power Up folling the start up steps in the Manual. Is there some trick to starting it up Rusty

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Posted on Jan 02, 2017

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SOURCE: How can I revive my TI89 after two years of not using it?

It could be that you need to replace the backup battery located behind a little door with a screw in the battery compartment. If this doesn't work, try resetting your calculator by leaving backup and AAA batteries out for about 8 hours and reassembling it. Hopefulyy this will work. Good luck

Posted on Aug 06, 2009

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SOURCE: Won t turn on

Hello,
To answer the question you asked. No the backup battery does not affect the main batteries. It is there to keep the memory electrically refreshed when calculator is turned off. You will know that the backup is depleted or almost depleted if the screen displays RAM CLEARED, everytime you turn the calculator ON.

Now to the calculator not turning ON. IF THERE ARE NO HARWARE PROBLEMs with your calculator (of this I cannot judge for I am no prophet) , it may be that the screen is too light and you cannot see what it displays. If that is the case, you can darken it as follows.
1. Press [2nd] key and release it.
2. Press [ArrowUp] key and release it.
3. Repeat Steps 1 and 2 in sequence, until screen darkins enough. You may have to repeat the sequence several times.

Hope it helps.

Posted on Oct 14, 2009

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SOURCE: Screen went blank replaced AAA batteries starts up

Hello,

You may have to force the calculator to boot up. Details are in the article . Read the part on Ti83Plus family.
The article contains links to additional articles.
Hope it helps.

Posted on Oct 29, 2009

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My ti 83 will turn on when i press the clear thing but when i try to put something in nothing happens


Hi imagenius1,

You need to free up some memory. Try clearing your RAM memory. Your calculator should operate properly afterward.

Press [2nd] [MEM] [7] [1] [2]

If the steps above did not reset the memory to your Ti 83 family calculator try the procedures below.

Please be prepared to re-install the calculator's OS if you run through this process.

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  1. Remove one of the AAA batteries. Press and hold the [DEL] key. While holding [DEL], reinsert the AAA battery and then turn the calculator on. The calculator should display "Waiting...Please install calculator software now". Follow the instructions for the TI-83 family or TI-84 Plus family to reinstall the calculator operating system.



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  3. Remove all of the batteries including the round lithium battery for 5 minutes. After the 5 minute period, reinsert all of the batteries and turn the calculator on. Adjust the contrast if necessary.

  4. If the above process did not reset your calculator. Try re-doing (Procedure 1) and, extend the time in step 4, by 5 minutes to 10 minutes before you put all the batteries back in the calculator.

(Procedure 2).


For a straight Ti 83 without the Plus or, Silver Edition label try the procedure below.


  1. Try a new set of AAA batteries.



  2. Remove one of the AAA batteries. Press and hold the [ON] key for 20 seconds. Reinsert the AAA battery and then turn the calculator on.


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