What is on the other side of that board? In order to activate a switch like that it usually needs a carbon impregnated or coated silicon button.. Any metal piece would work. Aluminum foil will work.
SOURCE: Help!!a Black screen appears when I turn on my calculator
http://oakroadsystems.com/math/ti83oops.htm#Lines
ok guys, after about 10 years of not using my ti-83, i put the new batteries in and got the black screen you are all talking about.. came to this site.. saw no solutions.. kept looking.
I've fixed my calculator, but my brain won't tell me exactly how.. but i followed those instructions..
you CAN see what is on your screen if you tilt it under the light ... just fiddle around until you can see faint writing on your screen under the black.
Press window
i have these entries in my calculator
xmin=-10
xmax=10
xscl=1
ymin=-10
ymax=10
yscl=5
xres=2
then go and press second and the down arrow to lighten your screen. it should work.
SOURCE: replacing batteries on a ti-30xa
Hi,
After the batteries are installed you
need to reset the board. There is a little reset area that needs to be
shorted to get the calculator back to normal. Look closely at the
circuit board- You'll see a little circle next to the word reset. Its
near the middle of the board. Wet your finger- press it on the circle.
It should short.Blow it dry.
Please do rate the solution if the issue is resolved or post a comment for further assistance.
Thank you for using fixya have a nice day:-)
SOURCE: replaced battery but unable to
there is reset button beside the battery or you have another option is to push all the buttons of your watch to reset and you can now set the time, date and other that had to be set manually..
SOURCE: My calculator wouldn't turn on
Having gone over two months without a response to my query, I assume my suggestion to adjust the contrast solved the problem.
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