In Case Of Difficulty - TI -82 Manual Book

In Case of Difficulty

If you have difficulty operating the calculator, the following suggestions may help
you to correct the problem.
Handling a Difficulty
1. If an error occurs, follow the procedure on page 1.22. Refer to the more
detailed explanations about specific errors beginning on page B.6, if
necessary.
2. If you cannot see anything on the display, follow the instructions on
page 1.3 to adjust the contrast.
3. If the cursor is a checker-board pattern, memory is full. Press y
ã ä
MEM
4. If the dotted bar busy indicator is displayed, a graph or program is
paused and the TI.82 is waiting for input.
5. If the calculator does not appear to be working at all, be sure the
batteries are installed properly and that they are fresh.
B-4 Reference Information
and delete some items from memory.
Delete...