Question about Aurora Electronics PR620 Calculator

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P. on screen with error up the top

How do I clear this so that I can use the calculator again?

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Hi & thanks. There is a small 'M' on the top center right of the 'number' screen. How do I get this to go away? Remove the battery? Thanks again & regards, -louis


This M does no harm. It merely reminds you that you stored something in memory. You can try pressing the AC (Clear All) button. Alternatively, store 0 in all the memories. If I am not mistaken you have 3 memories. Try
0 STO 1 to clear Memory 1
0 STO 2 to clear Memory 2
0 STO 3 to clear Memory 3.

Jun 29, 2011 | Texas Instruments BA Real Estate...

1 Answer

I have a TI84 plus texas instruments i have removed both the batteries in order to reset the unit but it still has not resetted the unit. All I am getting all zeros on the screen


First try removing all four AAA batteries and the small lithium backup battery (above the four AAA batteries). Leave all batteries out for five minutes, then replace them and try to start the calculator. If this doesn't work...

Replace all but 1 AAA battery. Press and hold the "CLEAR" button on the calculator. While holding the "CLEAR" button down, replace the missing AAA battery. While still holding the "CLEAR" button, turn the calculator on. The display should read "RAM Cleared". Release the "CLEAR" button and press again to remove the message.

If that doesn't work, remove 1 AAA battery again. Repeat the preceding instructions with the "DEL" key: With the battery removed, press and hold the "DEL" key. With the "DEL" key held down, replace the battery and turn the calculator on. The screen should say "Waiting... Please install calculator software now." Release the "DEL" key. Download this program onto your computer (from Texas Instruments). Connect the calculator to the computer using the USB cable provided with purchase. Run the TI OSDownloader program and follow the on-screen instructions to re-install the calculator's operating system.

Apr 30, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

The screen is black on my calculator and i want to know what i can do to fix it.


Hi,

This could be a contrast issue. Look for blue contrast markers on the up and down arrow keys on the top-right of the device.

1. Press "Alpha" (top left of device below screen)
2. Press the down arrow key on the right towards the top of the device

Repeat these steps until the screen becomes clear again (you must press "Alpha" for each contrast adjustment).

If down doesn't work, try up several times instead.

Mar 02, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

The top half of my screen split into four "windows." I can't get it to go away, no matter what I do. I can still do basic math equations at the bottom of the screen, however.


It is possoàible that you activated the split screen feature. IF THAT IS THE CASE, you can deactivate it.
  1. Press the MODE key.
  2. Use Down Arrow to move focus to the 8th (the bottom) line.
  3. Use the left or right arrow to highlight FULL, and press ENTER
  4. Press 2nd key then QUIT.
  5. Main screen will be whole again.
If that does not work, reset calculator to the Default configuration.
  • Press 2nd key then + to access MEMory management.
  • Select 7:Reset
  • Under RAM menu, select 2:Defaults
  • Press 2:Reset
  • Calculator returns with Defaults set.
  • Press the CLEAR key to clear the message.

Mar 02, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

Cant get Y values when i type in X values in table


Hi there,

Well first of all you can try to reset your calculator, just follow the below steps to know how to reset it -

1. Turn off your TI-83 Plus.
2. Open the battery panel on the back of the calculator and remove one of the AAA batteries. Keep this battery handy, as you'll need it again.
3. Press the "Clear" button, and keep it held down.
4. Put the battery back in and turn on the calculator, with the "Clear" button still held down. When the calculator's screen displays the message "RAM Cleared," release the "Clear" button.
5. Remove one of the calculator's batteries again. This time, hold down the "Del" key.
6. Reinsert the battery and turn on the calculator. Release the "Del" key when the screen reads "Waiting...Please install calculator software now."
7. Use the TI Connectivity cable to connect your calculator to your computer. Run the TI Connect software to reinstall the calculator's operating system. If you don't have an up-to-date copy of TI Connect, see Resources.
8. Turn off the calculator and disconnect the TI Connectivity cable. Remove the AAA batteries, as well as the small, circular lithium battery.
9. Wait five minutes before putting the batteries back in. Turn on your calculator.
Hope it helps ..........

Good Luck!!

Thanks

Jan 06, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

My TI-84 Plus calculator won't work. It won't switch off by itself. When the batteries are reinserted, it says that all RAM has been cleared. When i press the 'ON' button again, the screen clears. but...


The Ram cleared message is normal after you change batteries. When you see this message you press the CLEAR button to erase it. You do not press the ON button again because the calculator is already ON. If you want to turn calculator OFF you press [2nd][ON] (OFF).

On certain calculators, pressing the ON button when calculator is already ON is interpreted as INTERRUPT the current command.

Jan 04, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

When turned on, my TI-84 Plus says that the RAM is cleared. I pressed on again but you can't do anything after that.


Hello,
If it is always saying RAM Cleared when you turn it on, it may be due to a depleted backup battery. Once you change it, you will not get the message again.
Anyway, you are not supposed to press ON again when calculator is turned on. Just press [CLEAR] to erase the message and have access tho the main calculator screen.
Good luck.

Oct 25, 2009 | Texas Instruments TI-84 Plus Calculator

2 Answers

Cannot graph invalid dim error


This error show up when you are graphing out of the plot menu. If you are not graphing data points from list menu, you need to turn the plots off. In the y= screen, you will see the words plot 1, plot 2, etc across the top of the screen. If one of the plots is highlighted (black box over the words), you need to turn it off. This can be done by arrowing up and highlighting the box and pressing enter. When you arrow back down, the plot should be off and you will be able to enter an equation in the y= lines and graph.

If you are graphing from the plot menu, this error lets you know that one of the lists you are graphing is longer than the other.

Another way to fix the problem is to reset the calculator by pressing 2nd button then plus sign then 7 then 1 then 2. This will reset the calculator however if you are graphing from lists, your data will be erased. Hope this helps.

Oct 02, 2009 | Texas Instruments TI-83 Plus Calculator

1 Answer

DATA ERROR 40!


Hello
Here is what the manual says. It might help you decide what to do next.
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Mar 16, 2009 | Casio Algebra FX 2.0 Calculator

1 Answer

Calculator not working


i found this somewhere else on this website
and it worked for my broken ti-83plus which had same odd startup symptoms.

Remove one of the AAA batteries.
Press and hold CLEAR while reinstalling the AAA battery.
Continue holding CLEAR button and press ON.
Release buttons and press CLEAR again.
Calculator should be normal mode now. ;0)

Sep 14, 2007 | Texas Instruments TI-83 Plus Calculator

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