Author: cvsoft
Posted: 11 Dec 2012 11:25:25 pm (GMT -5)
On the TI-81, the screen is cleared when calculations are performed; That is normal.
Edit: a picture of the screen showing the contrast level would be nice, if possible.
Corrosion frequently goes past the battery compartment, which is basically why my TI-81 almost went to the trash instead of eBay. When it does, nothing external (that I've heard of) can fix it. I'd recommend taking a look at my repair guide and disassembling the 81. Don't pick away at any corrosion, and the clearest pictures possible would be greatly appreciated. I've never heard of a failure like this one, so as much information as possible here would help other people with the same problem.
Don't disassemble it completely; stop once you remove the metal RF shield under the back cover. And if you note any inconsistencies between the repair guide and your TI-81, PM me and I'll get it fixed.
Posted: 11 Dec 2012 11:25:25 pm (GMT -5)
On the TI-81, the screen is cleared when calculations are performed; That is normal.
Edit: a picture of the screen showing the contrast level would be nice, if possible.
Corrosion frequently goes past the battery compartment, which is basically why my TI-81 almost went to the trash instead of eBay. When it does, nothing external (that I've heard of) can fix it. I'd recommend taking a look at my repair guide and disassembling the 81. Don't pick away at any corrosion, and the clearest pictures possible would be greatly appreciated. I've never heard of a failure like this one, so as much information as possible here would help other people with the same problem.
Don't disassemble it completely; stop once you remove the metal RF shield under the back cover. And if you note any inconsistencies between the repair guide and your TI-81, PM me and I'll get it fixed.