Question about Canon MP49D Calculator

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"E" error the "E" is on the calculator and I cannot use it at all. It said to hit the reset button to stop this, but that does nothing.

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Y= button coming up as invalid


well, it could just be that you have some random wrong equation that is, as the calculator is telling you, invalid, press the y= button in the top left of your calculator and scroll down through the equations and if anything is there just hit clear to delete it, one by one, happens to me a lot if i don't put the cover on my calculator. if there is nothing under your y= i would try resetting the ram, and if that doesn't work i would try a factory reset, to get to these options press the 2nd button then the + (should say "mem" in blue above the button) then scroll down to reset and press enter, all the reset options are there.

Aug 29, 2013 | Office Equipment & Supplies

2 Answers

Graph button won't graph, then it exits and put's a 4 instead ?


Hello,
It seems that wires got crossed. I suggest you reset all RAM by the follwing steps
[2nd][MEM][7:Reset][1:All Ram][2:Reset][ENTER]
Ram cleared will be displayed on screen. [CLEAR] to go to the home screen.

If that does not solve your problem, reinstall the OS. Post a question on how to install OS, if you want, or read some of the posts on TI83/84/89 about same subject.

If nothing works, I am afraid you will have to repair the calculator.

Hope it helps.

Sep 05, 2009 | Texas Instruments TI-84 Plus Silver...

1 Answer

Texas Instrument TI-83 Plus error message ERR:MEMORY and the number keys won't work


Hit the "2nd" button in the upper left hand corner of the keypad, and then the "+" button (lower right hand corner). Then either click the down arrow once and then "enter" or just hit the "2" button. (the selection should say "2: Mem Mgmt/Del...") Hit Enter again (selecting the "1: All..." selection) Scroll through the programs on her calculator and either hit the "Del" button (upper right hand corner of the keypad) to delete the programs/variables, or hit "ENTER" to archive them. The archived programs have an asterisk, " * ", in front of them. (Note: Once you delete the programs, you CAN NOT get them back) If you have variables on there "L1" "A" etc. you can delete them and use them again later, obviously.

You can bypass this whole thing and just do "2nd" "+" "7". This combination will reset the calculator and delete any programs that are unimportant to the calculator. You will be left with the "Finance..." option in the APPS menu only...nothing else. You should be able to clear up the problem either way.

Apr 26, 2009 | Office Equipment & Supplies

1 Answer

Can't set time, date or rate


for 2/2/09, enter 2.2.2009 and then hit the button with the clock symble.

Nov 03, 2008 | Sharp EL-1801P Calculator

1 Answer

Sharp el-1197p3


push and release reset button many time while you apply dry contact cleaner on the button- remove the power and return it twice.

Feb 12, 2008 | Sharp EL-1197P Calculator

3 Answers

I want two decimal points to show


I called Canon customer support. There is a tiny reset button on the lower back area of the calculator. Simply stick a small object in there to reset the calculator and you should be as good as new! Worked for me!

Dec 02, 2007 | Canon LS-100TS Calculator

7 Answers

Cannot set the date on my Canon P23-DH V calcualtor


ok, have your calculator set on "on" press the "time/clock" button once, when date appears on calculator press the "M+=" and hold until first number on date flashes, enter the date you want, when done switch your calculator from "on" to "print". date should be saved. do the same for time.

Nov 30, 2007 | Canon P23-DH Calculator

1 Answer

TI 84 Plus...Screen Black, but I can see the shadows of the background.


make sure you hit the 2nd button before hitting the contrast button. you need to hit the 2nd button everytime you hit the contrast up button

Oct 23, 2007 | Texas Instruments TI-83 Plus Calculator

2 Answers

BLACKED OUT SCREEN


try reseting it manually by taking the batteries out, works sometimes.

Sep 06, 2007 | Texas Instruments TI-83 Plus Calculator

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