Question about Texas Instruments TI-83 Plus Calculator

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Blakck screen i recently reaquired my ti 83 plus from a friend who was borowing it... and whenever i go to turn it on the screen acts as if the contrast is turned all the way up... however adjusting the contrast does nothing... but i remember a certain serise of key strokes that would basicly wipe the calculator completely back to square one and put it into a dignostic check of some sort.. however it has been years since i have even held a ti 83 being that i went to ti 89 titanium which also has the same comand... it is related to holding a key or two while replaceing the batteries... can you infrom me of how to do that because i am at a loss as to how to gain calculator functionality and i may soon need it for my algebra class in case the teacher wants a calculator with a fresh memory

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Re: blakck screen

Make sure to replace the "battery backup" too the little lithium ion battery

Try Adjusting contrast:
Hold down "[2nd]" key press up or down arrow repeatedly to lighten or darken contrast.

First attempt reseting:
Step 1: Remove all the batteries
Step 2: Hold "Clear" key down
Step 3: Still holding "Clear" key reinstall batteries
Step 4: Still holding "Clear" key press "On" key until home screen is displayed.

Second shot reseting:
remove all batteries including lithium ion (backup battery), wait 3 hours and reinstall batteries.

Third Shot reseting:
Step 1: Remove a battery
Step 2: Hold down "DEL" key reinstall battery
Step 3: Possible msg pops up saying "Waiting ... Please install software" IGNORE msg and take out battery again
Step 4: Reinstall battery do not hold down "DEL" key

reseting will cause the handheld to loose all of its stored memory.

Hope that helps!

Posted on Jan 30, 2008

Re: blakck screen

The lithium battery is missing howeer there is further evidence of atempted dissasembly and im now on a man hunt on who killed my calculator... but thanks ill have to remember how to perform the hard restart...

Posted on Feb 09, 2008

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