Question about Texas Instruments TI-89 Calculator

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TI-89 menus (f1,f2,f3,etc.) a couple words are unreadable

The menus in home's f1 for example "open" is dotted and unreadable, they look like chopped up words

Does anyone have a solution for this?

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Part of the display control has failed disabling sections of the display. You might check with TI to see if they have a fair repair price, this is not likely to be one you can solve.
The only possibility would be to disassemble the case to gain access to the display. If TI doesn't repair them at a fair cost, you might try to remove the LCD display from its mounting or, if it seems practical, to stress the display from the side. The contacting of an LCD is done with a silicone rubber strip with embedded fine wires that carry the control signals from the printed circuit board to lightly plated corresponding contacts on the glass of the LCD. The positioning of this strip is extremely critical and is dependent on precise pressure on the silicone strip. Yours may have 'slipped' but the error could be cause by poor positioning at the factory that has just now revealed itself. The difference between contact and no contact at the junction of the strip and plated glass area could be a couple thousandths of an inch. You may make it worse instead of better but if it is unreadable anyhow, it really doesn't matter.   

Posted on Feb 02, 2009

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My calculator is blocked: the first window with all the apps is always displayed. i can't move from an application to another and when i get off/on the piles, the calculator get on and the same bug is...


The fact that the icons show on first screen is not a bug. It is a configuration setting.

Just in case some keys answer to a keypress.
Press the diamond key and the HOME key to get to the HOME screen. In Home screen press the MODE key. Use the Function keys (F1,F2,F3) to move to the last page of the configuration where you find the option Apps Desktop and toggle it to OFF. Press ENTER to save.
If that does not work (because the arrow keys) do not answer, try to RESET the calculator: Press [2nd][MEM] to open memory management then press F1 key to RESET. Try ressetting all RAM.
If more keys refuse to respond then maybe you should contact TI-cares at education.ti.com

Sep 09, 2011 | Texas Instruments TI-89 Calculator

Tip

Troubleshooting KitchenAid oven, range and microwave error codes


Here list of Kitchen Aid range and oven codes.
4 Digit Failure Codes
F1 - E0 EEPROM communication error
F1 - E1 EEPROM checksum error
F1 - E2 UL A/D error
F1 - E4 Model ID error
F1 - E5 Calibration shifted
F1 - E6 Latch signal mismatch error
F1 - E9 Stack overflow
F1 - E3 Wiring harness cavity size does not match stored value
F2 - E0 Shorted touch pad
F2 - E1 Keypad cable connection error
F2 - E5 Cancel key drive line open
F2 - E6 Cancel key drive line open
F3 - E0 Oven temperature sensor (RTD) opened (upper oven on double oven models)
F3 - E1 Oven temperature sensor (RTD) shorted (upper oven on double oven models)
F3 - E2 Oven temperature is too high (Cook mode)
F3 - E3 Oven temperature is too high (Clean mode)
F3 - E4 Oven temperature sensor (RTD) opened (lower oven on double oven models)
F3 - E5 Oven temperature sensor (RTD) shorted (lower oven on double oven models)
F3 - E6 Drawer sensor open
F3 - E7 Warming drawer sensor shorted
F4 - E1 Meat probe malfunction - shorted
F5 - E0 Door Switch
F5 - E1 Self clean latch will not lock
F5 - E2 Latch during CLEAN error
F5 - E5 Self clean temperature not reached within 45 minutes.
F5 - E6 Door is open, but latch is locked
F5 - E7 Self clean latch will not unlock
F6 - E0 Return line not connected
F7 - E1 Common switch wire defective
Two digit codes:
F0 ERC Board failure
F1 ERC Board failure
F2 Oven temperature is too high
F3 Oven temperature sensor open
F4 Oven temperature sensor shorted
F5 ERC Board failure
F7 Function key stuck on ERC
F8 ERC Board failure
F9 Oven door lock failure
Microwave and Microwave combo error codes:
F1 - E3 or F1 - E4 Electronic control malfunction
F2 - E0 or F2 - E1 Keypad connection error
F2 - E3 Keypad held down too long, or keypad is shorted.
If you get an error code, try first resetting the code:
1. Disconnect power for about two minutes.
2. Connect back power.
3. If code re-appears, test and eventually replace faulty part.

on Apr 24, 2015 | Kitchen Ranges

1 Answer

I need instructions on how to use the hot keys and function buttons


F1

  • Almost always used as the help key, almost every program will open the help screen when this key is pressed.
  • Windows Key + F1 would open the Microsoft Windows help and support center.
  • Open the Task Pane.

F2

  • In Windows commonly used to rename a highlighted icon or file.
  • Alt + Ctrl + F2 opens a new document in Microsoft Word.
  • Ctrl + F2 displays the print preview window in Microsoft Word.

F3

  • Often opens a search feature for many programs including Microsoft Windows.
  • Shift + F3 will change the text in Microsoft Word from upper to lower case or a capital letter at the beginning of every word.

F4

  • Open find window.
  • Repeat the last action performed (Word 2000+)
  • Alt + F4 will close the program currently active in Microsoft Windows.
  • Ctrl + F4 will close the open window within the current active window in Microsoft Windows.

F5

  • In all modern Internet browsers pressing F5 will refresh or reload the page or document window.
  • Open the find, replace, and go to window in Microsoft Word.
  • Starts a slideshow in PowerPoint.

Jan 15, 2011 | Computers & Internet

1 Answer

Advise uses of all F Keys.?.


Hi,

F1

Almost always used as the help key, almost every program will open the help screen when this key is pressed.

Windows Key + F1 would open the Microsoft Windows help and support center.

Open the Task Pane.


F2

In Windows commonly used to rename a highlighted icon or file.

Alt + Ctrl + F2 opens a new document in Microsoft Word.

Ctrl + F2 displays the print preview window in Microsoft Word.


F3

Often opens a search feature for many programs including Microsoft Windows.

Shift + F3 will change the text in Microsoft Word from upper to lower case or a capital letter at the beginning of every word.


F4

Open find window.

Repeat the last action performed (Word 2000+)

Alt + F4 will close the program currently active in Microsoft Windows.

Ctrl + F4 will close the open window within the current active window in Microsoft Windows.


F5

In all modern Internet browsers pressing F5 will refresh or reload the page or document window.

Open the find, replace, and go to window in Microsoft Word.

Starts a slideshow in PowerPoint.


Sep 30, 2010 | Logitech EX110 Mouse

2 Answers

I am trying to drive a prediction equation. but the book gives directions to aTI-84 and I have a TI-89. I have these steps "STAT, EDIT, L1, L2,STAT, CALC,LinReg(ax+b), ENTER" I have no clue how to make...


I assume you know how to enter data in your calculator. The keystrokes in the following pertain to TI92/92Plus/ Voyage 200 PLT. The main differences with the TI89/Ti89 Titanium is that the function keys F6,F7,F8 are not accessed directly but by the key sequences [2nd][F1], [2nd][F2], and [2nd][F3] respectively

1. CLEAN THE SLATE (so to speak) and ENTER DATA

In Home folder run F6: NewProb to reset the configuration.
Press Apps, and select 6: data/Matrix editor. Select a new data set
84e1901.jpg

Give it a name: here testing.

2133d3f.jpg

Press OK/ENTER, The data entry screen opens, enter your values.
0ab1602.jpg

When you finish press F2.PlotSetUp.

2. Statistical plot setup and scatter plot drawing

b142867.jpg.

Press F1:define to configure Plot1. Choose Scatter, then choose a mark for the data point. I select 5:Dot. and press [ENTER
0ee40be.jpg

Select the data column X=c1, Y=c2

65437f9.jpg

Press ENTER to save configuration. Press [CTRL] [GRAPH] On my TI92 the CTRL key is the [Diamond] key. On the following graph I changed the mark to a cross to see the data point better. I also played with the window dimension. You can also do that with ZoomStat. The graph remind me of a parabola (I know I chose the exact values)

7de9410.jpg

3. STATISTICAL CALC. AND REGRESSION ANALYSES.

Now we have to find the equation that fits these data best.
You press APPS 6:Data/ Matrix editor but you select current to return to your data set. You are taken to the data entry editor (Figure 3 above). In that screen Press F5:Calc to edit the type of statistics you want

On first line select the type of regression model : Linear Regression, QuadReg quadratic regression (or anything else available) X is from column1, Y is from column 2. Store RegEQ The regression equation in say Y1(x)

7c9f572.jpg

Press ENTER to save to get the Regression Equation. Here it is
As you can see I cheated: a perfect parabola. R^2 =1.

c46b604.jpg

And here the best fit represented on same graph as the statistical data

7097bac.jpg

Usually you have to try different regression models, until you find the one that fits best the experimental data.

Jul 26, 2010 | Texas Instruments TI-89 Calculator

1 Answer

I am having trouble figuring out why my ti 89 has trouble figuring out integrals. for example i know that the integral of x^2 is x^3/3+c but my ti 89 gives me the answer in a decimal of fraction form. i do...


The calculator does not give a result of an integration with a constant. The form of the result will depend ob the EXACT/APPROXIMATE mode you have selected.
In the following screen capture, your integral has been evaluated with mode set to EXACT,AUTO, and APPROXIMATE. Pay attention to the syntax.

60131ab.jpg

To set the computational mode to EXACT, press the MODE button use the Function keys F1,F2 or F3 to move from page to page, point to EXACT/APPROX and use the right arrow key to unfold the submenu, then the Up or Down arrow to select AUTO, EXACT or APPROXIMATE and press ENTER to SAVE Configuration.
If the integral cannot be found in EXACT mode, the calculator will echo the command without calculating the integral.

Apr 26, 2010 | Texas Instruments TI-89 Calculator

1 Answer

Some of the characters are fuzzy on the display, not allowing me to access them. How can I fix this?


As you know, the calculator uses a system of menus activated by the F1, F2, F3, etc. keys. However when a submenu menu option is not available in the context of a problem, it will show on the display as a greyed out option (fuzzy) and it cannot be chosen.

Mar 07, 2010 | Texas Instruments TI-89 Calculator

1 Answer

Graphing Problems


In home folder (main calculator screen) press [Diamond][F2:Window]] to access Window configuration screen.
Press [F1] ( not mecessary now because the F1 page is open by default). In the F1 page of configuration screen set Xmin=-10,
Xmax=10
Ymin=-10
Ymax=10
Xscale=1.
Yscale=1.

OR
Press [Diamond][F2:Window][F2][6:ZoomStd] (Zoom Standard) to set all values as above.

If a graph is active (axes displayed, or part of a curve is showing) press [F2:Zoom][6:ZoomStd]

Feb 15, 2010 | Texas Instruments TI-89 Calculator

1 Answer

Texas Instruments TI-89 calculator/unreadable pixelated words


If to much memory is being used up the calculator will behave like that. Sometimes if you download programs (mainly ASM) that didn't work with your hardware version (mainly 2) you can get this types of problems. I would be willing to work with you more on this by email if you like.
raklein62@yahoo.com
Plus I can download instructions that will help you operate your calculator that can be overlooked in the manual or any datadump.

Aug 25, 2009 | Texas Instruments TI-89 Calculator

2 Answers

Can't input values for xres in graph window.


Go to the graph app (diamond + f3)
to the graph apps settings (f1 , then 9: Format)
turn off discontinuity detection
go to the window setupt (diamond + f2)
change xres to 2.0

Jul 16, 2008 | Texas Instruments TI-89 Calculator

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