I just replaced the batteries in my TI-83 calculator. When I turn the calculator on, the screen is completely black. I've tried to lighten the screen by hitting the 2nd button and the arrow keys, but nothing happens. How can I get the screen back to normal?
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Adjust the contrast. Turn the calculator on. Press and release the 2ND key. Press and hold the down-arrow key to lighten the screen. If you go too far, press and release the 2ND key, then press and hold the up-arrow key.
If you cannot see anything on the screen, the contrast may need to be adjusted. To darken the screen, press 2nd and release, and then press and hold up arrow until the display is sufficiently dark. To lighten the screen, press and release 2nd, and then press and hold down arrow until the display is sufficiently light.
Hi, The screen contrast of the TI83Plus/TI84Plus/TI84PLUS SE can be
adjusted to suit the user. Sometimes after the batterie have been
replaced the screen contrast is reset to the factory defaults. To adjust it to your liking.
Press the [2nd] key and release it.
Press and hold the Down Arrow key to lighten the screen or the UP arrow to darken it.
In your case, the screen is too dark, so in step 2 above you press and hold the Down arrow until the screen lightens enough. Hope it helps.
Solution 11900: Troubleshooting a TI Graphing Calculator That Will Not Turn On.
For the TI-83 Plus Family, TI-84 Plus Family: Caution: The resets described in these troubleshooting steps will cause a loss of applications, programs and data. If at all possible please create a backup using TI Connect™ first.
Try a new set of AAA batteries.
Adjust the contrast by pressing and releasing the [2nd] key followed by pressing and releasing the up arrow; repeat as necessary. To adjust or lighten the display, use the down arrow.
Remove one of the AAA batteries. Press and hold the [CLEAR] key. While holding [CLEAR], reinsert the AAA battery and then turn the calculator on. The calculator should display the message "RAM Cleared". Release the [CLEAR] key and then press it one more time to remove the message.
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.
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.