Texas Instruments TI-73VSC Guidebook - Page 337
In Case of Difficulty
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Appendix B: Reference Information 331 In Case of Difficulty If Suggested Action You cannot see anything on the display. Press - $ to darken or - # to lighten the display contrast. The LOW BATTERY message is displayed on the Home screen. Replace the batteries as described in Appendix C: BatteryàService and Warranty Information. A checkerboard cursor (Ø) is displayed. Either you have entered the maximum number of characters in a prompt or memory is full. If memory is full, press - Ÿ 4:Delete, and then delete some items from memory (See Chapter 13: Memory Management). The busy indicator A calculation, graph, or program has been ( © ) is displayed in the paused; the TIN73 is waiting for input. Press top right corner. b to continue, or press ^ to break. An error message is Refer to the section in this chapter entitled displayed. Error Messages. Press b to clear. The TIN73 does not Press - l as many times as needed to appear to be working exit any menu and to return to the Home properly. screen. or Be sure that the batteries are installed properly and that they are fresh. The difficulty persists. Refer to Appendix C: BatteryàService and Warranty Information for information on how to contact Customer Support to discuss the problem or to obtain service.