Omnimaga
Calculator Community => TI Calculators => General Calculator Help => Topic started by: Darl181 on February 14, 2011, 12:33:00 am
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I've had problems with various keys sticking (arrow keys, clear, a few others) and I've been trying to figure out how to fix it.
I saw an image on google a while back (of course, I can't find it now that I'm looking for it :P) and it looks like I can get to the key hardware by opening it.
I can easily get the screws out, but how do you open the case? I don't want to make some sort of stupid mistake trying to open it, and there's doubtlessly others a ton more experienced at this than I am.
It's an 84, black edition.
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I found this on google:
http://www.instructables.com/id/Ti-84-Basic-Disassembly/
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Black edition ??? I have never heard of this. Anyways make sure you get the screw out underneath the backup battery and then there are four clips holding the case together(two on each side). Use a knife or something and carefully pull apart the clips. It might take awile but eventually they will come off.
Once open be careful with the keyboard because the keys like to fall out and stuff and also you won't find a real z80, but instead TI's version one.
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Okay, thanks
So I pry it at the corners...
@z80man there's silver edition which is gray and the normal, which is black, so black edition.
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Black edition ??? I have never heard of this. Anyways make sure you get the screw out underneath the backup battery and then there are four clips holding the case together(two on each side). Use a knife or something and carefully pull apart the clips. It might take awile but eventually they will come off.
Once open be careful with the keyboard because the keys like to fall out and stuff and also you won't find a real z80, but instead TI's version one.
Black edition= TI84+ (non se is black)
Okay, thanks
So I pry it at the corners...
Yes, but be careful. Just read the instructible or google "take apart a TI 84+"
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I don't know about a BE, but for an SE, there are 5 clips holding the case together: one on top, two at the sides of the LCD, and two near the Log and * keys. It doesn't take much force; just stick something thin (a guitar pick works well) in between the two halves of the case and push them apart until the clip pops open. Once you have 4 of the 5 clips open, the case will just fall apart.
Also, for an SE, be sure to remove the keypad cover first.
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Yeah, I have a BE :(
Someday, I plan on having an SE, but I'd have to get it on ebay or something b/c of the lack of extra RAM (which I've gotten really used to)
[offtopic]It turns out that not all BE's are really black... :o
http://datamath.org/Graphing/TI-84PLUS_WM08_TL.htm
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ooh. things like this can be hard to open, and can also snap if not careful, it will require some significant amount of force in the right direction
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Yeah, I have a BE :(
Someday, I plan on having an SE, but I'd have to get it on ebay or something b/c of the lack of extra RAM (which I've gotten really used to)
[offtopic]It turns out that not all BE's are really black... :o
http://datamath.org/Graphing/TI-84PLUS_WM08_TL.htm
http://datamath.org/Graphing/TI-84PLUS_SE_OD08_PK.htm O.O
But yeah it's hard to open these calcs, even the 83+. Also you need the right screwdriver and right size, to not break the screws top.
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Yeah, in my math class they lended out those pink ones...nobody in their right mind would steal those :P
Some of them actually have 2.53. :o
Most are 83PBE's tho...there's a few 82s floating around as well
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Yeah when I went to hi school all they had were TI-82s. Students usually had a TI-80, 82 or 83+. I was the only one to have a 83+SE and very few people had a 83 non +.
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Yeah :P
Me and the teacher are the only ones with 84PBEs
It's kind of funny...he thinks a RAM clear erases everything...brilliant teacher.
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Yeah :P
Me and the teacher are the only ones with 84PBEs
It's kind of funny...he thinks a RAM clear erases everything...brilliant teacher.
Now with doorsCS7 a ram clear really does do nothing. My free ram is always 22 kb+ now!
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I use omnicalc...dcs7 is just way too large. :P
It works a good part of the time, and if that fails, there's axe backup, and when that fails, there's msd8x.
I'm prepared for this stuff and I "backup my progress often" ;)
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I find DCS size to be fine on a 84+/SE calc, because you got at least 480 KB, but in your case you don't even have that much memory on yours, so when you develop in Axe that doesn't leave you much room for other apps. X.x (especially that you got so many projects and games)
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ooh. things like this can be hard to open, and can also snap if not careful, it will require some significant amount of force in the right direction
Yep, pull hard.
Also be sure to keep track of every single little screw. I've already lost one :P
And when you take the keys out, you can wash them (they're just pieces of plastic), but (as you know) make sure you dry them!
Oh, and this is a good opportunity to switch around some stuff ;)
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What are these "clips" on the side of the case that you speak of? My 83+BE has been having problems with it turning off inexplicably and me having to bang the bottom of the calculator against a desk to turn it on again. I tried to take it apart before, but my dad looked at the screws on the back and found that they weren't screws: they were rivets, which are impossible to take apart.
Also, how do you preform a RAM restore using DoorsCS7? I didn't know that it could do that.
And additionally, regarding DCS7's size, does anyone think it would be a good idea for Kerm to provide an "abbreviated" version with the Basic libs removed, so that it only takes up 32K? I don't have much space for apps.
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Also, how do you preform a RAM restore using DoorsCS7? I didn't know that it could do that.
It can't do that. z80man is probably saying that DCS allows him to keep everything in archive, so that there's nothing in RAM that can be RAM cleared.
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What are these "clips" on the side of the case that you speak of? My 83+BE has been having problems with it turning off inexplicably and me having to bang the bottom of the calculator against a desk to turn it on again. I tried to take it apart before, but my dad looked at the screws on the back and found that they weren't screws: they were rivets, which are impossible to take apart.
You can take them off with a small flathead screwdriver. If it's the right diameter, it'll fit in the hex head well.
And by "clips" I mean when you open a calc, even after you take the screws out it's still stuck together (as protection, I guess). You have to pull hard to get it to come apart (after prying a piece open with a flat blade).
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Next question: what is good for cleaning the keys? I don't think we have the isopropyl alcohol the instructable was talking about :P
Would plain water work?
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Don't use plain water. Plain water is electrically conductive if it has any impurites at all, a recipe for disaster. Isopropyl alcohol can be purchased in the form of Iso-HEET, an antifreeze available at any gas station. I don't believe it conducts electricity, but I do know it is flammable (I know about this product because we burned it by the bottle at Scout Camp. :) )
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Yeah, I'm not exactly about to screw the stuff back on while it's still wet :P
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Just use plain water and a toothbrush or something to get grime off (assuming you're only cleaning individual keys). It works.
Make sure it's dry when you put it back together, of course (but then you should know that :D).