Question about Texas Instruments TI-85 Calculator

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Some lines on the screen are missing

I recently moved down south summertime. when i started up my ti some lines are missing on the screen, dont know what the heat did to it, i opened it up and everything seemed ok, no cables loose, any suggestions?

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Tere are problems with your´s calculator display you need to take apart screws and carefull apart display, and then clean with isopropilic alcohol, arm display again and probe befor cover them, it´s ok close the cover if not repeat till the problem was solved

Posted on Jul 30, 2008

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1 Answer

Sin(30)=


The sine of 30 radians is about -0.988 while the sine of 30 degrees is 0.5 .


To change the angular setting, press MODE, down-arrow to the "Radian Degree" line, highlight Degree, press ENTER, then 2nd QUIT to exit the mode screen.

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Binompdf ( says n:......p:.....x:..... How can I enable this guided input on my TI-84?


In the older versions of the OS, the command binompdf( displays a command line where the user is expected to enter the arguments respecting the syntax of the command. In the more recent versions of the OS (the most recent is 2.55 MP) the user enters the input over three lines.
I suggest you upgrade the OS of your calculator to the latest version available on the education.ti.com website.
To upgrade, insert fresh AA batteries (or just good batteries), run TI connect on your computer, connect the calculator to the computer and click the update button on TI connect main screen. It will download and update the OS.

Jun 25, 2012 | Texas Instruments TI-84 Plus Calculator

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My TI-84 Plus Silver Edition Calculator is missing pixels or lines in the middle of the screen. If I press 2nd then + sign, i get menu to reset, but three lines are not visible. This happens in the...


this happand when you dont use the Calculator long time
try the 2nd and Arrow up make the screen dark for 15 to 30 min
keep puse any key until will pass the 30 min
if it will not help than it could be the screen or the connection on the mainboard

Oct 13, 2010 | Texas Instruments TI-84 Plus Silver...

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HOW CAN I GET INTO THE ASK MODE ON MY CALCULATOR


  1. Press [2nd][WINDOW] to access the Table setup screen.
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Has it been dropped recently? The screen may have cracked from impact. Press the Reset button on the back using a ball point pen.

Nov 16, 2008 | Texas Instruments TI-84 Plus Silver...

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Texas instruments ti-86 screen problem


The TI-86 uses a very small, very thin ribbon cable to connect the display board to the LCD. The cable is about 2.5 " wide and about 4" long, and is only slightly thicker than a piece of paper but has about 40+ leads buried inside. Over time the leads will break at the folds (there are at least two folds in this cable to fit it down inside the case). There is no cheap solution to fix this problem. You might have some "Mr. Fix-it" try to fix it, but he will tell you to throw it away after he renders it completely inoperable. The calculator uses two Torx bit screws at the bottom of the case (T-6 size) so you will have to get the correct screwdriver to open the case. Save your money, sanity and time and use it till you can't stand the missing lines and throw it out. Even the data cable looks like it is glued down so if it lifts off after being cooked or frozen a couple of dozen times in the back of your car you can't fix this.

Mar 28, 2008 | Texas Instruments TI-86 Calculator

1 Answer

My TI-83 is all messed up


Sorry to hear that you are having problems with your TI-83. The TI-83 is a discontinued calculator, so I really don't think that it can be repaired/replaced.

See TI's website below for more information:

http://epsstore.ti.com/OA_HTML/csksxvm.jsp?nSetId=71440&nUsePub=NO&jttst0=6_23871,23871,-1,0,&jtfm0=&etfm1=&jfn=ZGEE602C53EA628B70E47DD2DD6878A5ABD632AD5834DE8ADC18D66ABBC9F888CBF7FB517A0B05B0984776B37370A28975B2

Feb 24, 2008 | Texas Instruments TI-83 Plus Calculator

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TI-85 Display Has Missing Lines


have u ever modded it? it can (and probably will)damage the screen (graphics driver)

Oct 26, 2007 | Texas Instruments TI-85 Calculator

1 Answer

Ti 86


Hi I got a problem with Ti-86 which is a line of the screen pixel missing. I tried to increase and decrease the intensity of the screen (2nd and up, down). Also tried to go to MODE function. I have tried those for several times. It works great. The line of those missing screen pixel came back. I don't know why. Just try it.

Sep 12, 2007 | Texas Instruments TI-86 Calculator

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