Texas Instruments TI-82 User Manual - Page 26
Turning the TI-82 On and Off - 82 used calculators
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Turning the TI-82 On and Off To turn the TI.82 on, press the É key. To turn it off, press and release y and then press M. After about five minutes without any activity, APDé (Automatic Power Down™) turns the TI.82 off automatically. Turning the Calculator On Press É to turn the TI.82 on. ¦ If you pressed y ãOFFä to turn the calculator off, the display shows the Home screen as it was when you last used it, and errors are cleared. ¦ If APD turned the calculator off, the TI.82, including the display, cursor, and any error conditions, will be exactly as you left it. Turning the Calculator Off Press and release y and then press ãOFFä to turn the TI.82 off. ¦ Any error condition is cleared. ¦ All settings and memory contents are retained by Constant Memoryé. APD™ (Automatic Power Down™) To prolong the life of the batteries, APD turns the TI.82 off automatically after several minutes without any activity. When you press É, the TI.82 will be exactly as you left it. ¦ The display, cursor, and any error conditions are exactly as you left them. ¦ All settings and memory contents are retained by Constant Memory. Batteries The TI.82 uses four AAA alkaline batteries and has a user-replaceable backup lithium battery. To replace batteries without losing any information stored in memory, follow the directions on page B.2. 1-2 Operating the TI.82
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