Question about Texas Instruments TI-83 Plus Calculator

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The screen comes up with a large dark square on it ,no cursor, no input is possible, all batteries are new

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  • 7,993 Answers

Hello,

Contrast too high.
Press [CLEAR] key and adjust contrast (Reduce)

Reduce the contast as follows
1.Press [2nd] key and release it
2.Press [DownArrow] and release it
3. Keep repeating the sequence until contrast is adequate.

To increase contrast Do the same but press [UpArrow] instead of [DownArrow]

Hope it helps

Posted on Sep 09, 2009

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Posted on Jan 02, 2017

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1 Answer

Integrate equations, using 0 and .123 as limits


Set Input/output to MathIO.
Press the Integrate key, to the right of CALC.
The image of integral appears with a rectangle for the function, and two small squares (one for the upper limit the other for the lower limit).

2d47a2ff-50cd-4858-8ecb-0816632bcce3.png

Type in the integrand (the expression you want to integrate) in the bigger (on your display) rectangle. Use appropriate parenthesis. To type in X press [ALPHA] )
Use the down arrow to move cursor to the square for the lower limit. Type in the lower limit. Use the Up arrow to move cursor to the upper limit square. enter the upper limit. Press [=] key. If you did not make mistakes, and your expression is not too complicated you should get your integral.

5c153709-633c-4f0b-ada7-8393326bbe63.png

Note: The screen captures are not from a Casio FX991ES. But that should not matter to you.

Feb 10, 2014 | Casio FX991ES Scientific Calculator

1 Answer

What causes a PC to lose it's cursor, then the screen goes dark


Restart the computer HOLD the keys CTRL+f11 or f12 depend of your model, mark, and restore to factory defaulty, and try it again.
God bless you

Jul 09, 2013 | Computers & Internet

1 Answer

Screen has bright circle in center and dark around edges and corners


You may want to remove back cover and wipe/clean the three large black lens.

Also go to an unused video input and examine screen; Same problem?

Let me know what you find.

Steve

Feb 29, 2012 | Sony KP-61S65 61" Rear Projection...

1 Answer

How to solve log base 2....


  1. In MthIO, pressing the log key displays a template: the log function and two squares, one smaller and below the main line, and another, bigger square/rectangle on the main line.
  2. Use the down arrow to move cursor to the smaller square end enter 2 as base.
  3. Use the up arrow to move cursor to the bigger square and enter the number whose binary log you want to calculate.
  4. Close the right parenthesis.
  5. Press the [=] sign at the bottom right of the calculator.
MthIO is the default Input/Output format of the calculator. To set it
  • Press [SHIFT][MODE] to access (Setup)
  • Select [1:MthIO]

Aug 17, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

When the screen is dark there are lines that run back and forth across the screen which is only noticable when pitcure is dark immage.


the screen bias needs to be turned down-ehind the front cover which is behind the grille there is a small black square about 3 inch square 6 little knobs sticking out 3 say in small letters screen and 3 say focus, don't adjust the focus just the screen for the coresponding color that shows up when picture is dark.best way to do this is darken the room and put it on video input with no signal if lines are white slowly
adjust 1 color after the other counterclockwise untill
lines disappear if only 1 color shows then only adjust the knob with the matching color. this is a very fine adjustment, to much will make your auto focus stop working. check it after you are done

Jun 20, 2010 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Ibook display problem


You can reset the pmu this might help to stable the display,this is only used as a last resort and not a possible solution.
  1. If the computer is on, turn it off.
  2. Reset the power manager by simultaneously pressing and then releasing Shift-Control-Option-Power on the keyboard. Do not press the fn (Function) key while using this combination of keystrokes.
  3. Wait 5 seconds.
  4. Press the Power button to restart the iBook computer.

Oct 07, 2009 | Apple iBook G4 Mac Notebook

1 Answer

Scientific notation


Hello,
I found a way to show you how to enter it on your calculator. Make sure you are in Math Input Output (MathIO). To effect that press [SHIFT][MODE][1:MathIO]. Calculator clears its screen
Press [SHIFT] then [Fraction template key] the one just below [calc]. I will show an image of the template in a picture below. Then you enter 4.6x85000 in the upper square of the template. Press the [Down Arrow] to move cursor to the lower square and key in 3570x0.0843. Then use [Arrow right] to move cursor to the level of the fraction line and press [=]. Hope it helps.

f7f325b.jpg

Oct 06, 2009 | Casio FX-115ES Scientific Calculator

1 Answer

Dark screen, no blinking cursor


press 2nd and the down button (hold down button)

Jan 14, 2009 | Texas Instruments TI-83 Plus Calculator

2 Answers

Shadowing


GOOD DAY ND GOOD LUCK;

TRY THIS, IT WILL CORRECT CONCERN:

50V500 ONLY
GHOST: May be described as "Out of Convergence" but ghost is still attached to main image.
CONDITION:
A "ghost image" appearing to the left or right of images in the picture. Can be varying shades of a primary color (red, green, or blue) as well as gray. Can easily be seen in the 4 x 3 mode, at the edges of the picture.
CORRECTION:

To correct the problem, please do as follows:
  1. Access I2C Menu. (See page 57 of the Service Manual).
  1. To enter the I2C Service Menu, with power off, (on the front control panel) press and hold the INPUT button. Then press the POWER button for two seconds. The following Service Menu will appear.
03b_ghost_image01.gif Figure 1
  1. BEFORE CONTINUING: CONFIRM THAT THE R, G and B DRIVE ARE SET AT 40.
  • Be sure to press SELECT after each change to SAVE the new Data.


  1. Using the Remote Control joy stick, scroll down to next page (see Figure 2) until LCD ADJUST is highlighted.
03b_ghost_image02.gif Figure 2
  1. Move the joy stick to the right to cursor right once. The next page will appear with the word GHOST highlighted.
  2. Cursor right again, and a white screen will appear with a BLACK SQUARE in the center, as in Figure 3. You will see LCD ADJUST, followed by “SHP” and a number (value).
03b_ghost_image03.gif
Figure 3

  1. If the unit is out of adjustment, you will see a gray ghost on either side of the black square. Move the joystick to the right or to the left until the ghost disappears. The number values will change up or down.
    • If the ghost adjustment is off with a lower value, there will be a ghost to the left of the square.
    • If the ghost adjustment is off with a higher value, there will be a ghost to the right of the square.
  2. Once you get the square to look good without ghosts, press "SELECT" to save any data values that have been changed.
  3. Press the "EXIT" button three times to return to normal picture.
  4. Adjustment is completed
  5. I HOPE THIS WAS HELPFUL, big IRISH.




Jul 26, 2008 | Hitachi 50V500 50 in. HD-Ready LCD...

4 Answers

Dark screen?


press 2nd, hold the down key until the screen lightens up.

May 07, 2008 | Texas Instruments TI-85 Calculator

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