Texas Instruments TI-73VSC Guidebook - Page 9

Preparing to Use Your TI-73, Installing the AAA Batteries Installing the AAA Batteries

Page 9 highlights

Chapter 1: Operating the TIN73 3 Preparing to Use Your TIN73 Before using your TIN73, you must install the batteries, turn on the calculator, and adjust the contrast. You may reset (clear) the calculator memory and defaults, if desired. Installing the AAA Batteries Install four AAA batteries in the battery compartment on the back of the calculator. Arrange the batteries according to the polarity (+ and -) diagram in the battery compartment. For more information about installing batteries, see Appendix C: BatteryàService and Warranty Information. Turning the TIN73 On and Off To turn on the TIN73, press ^. To turn off the TIN73 manually, press the yellow - key and then press ^ (indicated in this book as - ž). When you press - ž, all settings and memory contents are retained by Constant Memoryè. Any error condition is cleared. To prolong battery life, the APDè (Automatic Power Down) feature turns the TIN73 off automatically after a few minutes without any activity. When you turn on the calculator: • The Home screen is displayed if you previously turned off the calculator by pressing - ž. It appears as it did when you last used it; all errors are cleared. – or – • The calculator displays the last screen (including the display, cursor, and any errors) that was displayed before Automatic Power Down turned off the calculator.

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Chapter 1: Operating the TI
N
73
3
Preparing to Use Your
TI
N
73
Before using your TI
N
73, you must install the batteries, turn on
the calculator, and adjust the contrast. You may reset (clear)
the calculator memory and defaults, if desired.
Installing the AAA Batteries
Installing the AAA Batteries
Install four AAA batteries in the battery compartment on the
back of the calculator. Arrange the batteries according to the
polarity (+ and -) diagram in the battery compartment. For
more information about installing batteries, see Appendix C:
Battery
à
Service and Warranty Information.
Turning the
Turning the
TI
TI
N
73
73
On and Off
On and Off
To turn on the TI
N
73, press
^
.
To turn off the TI
N
73 manually,
press the yellow
-
key and
then press
^
(indicated in this
book as
-
±
).
When you press
-
±
, all settings and memory contents are
retained by Constant Memory
L
. Any error condition is
cleared. To prolong battery life, the APD
L
(Automatic Power
Down) feature turns the TI
N
73 off automatically after a few
minutes without any activity.
When you turn on the calculator:
The Home screen is displayed if you previously turned off
the calculator by pressing
-
±
. It appears as it did
when you last used it; all errors are cleared.
± or ±
The calculator displays the last screen (including the
display, cursor, and any errors) that was displayed before
Automatic Power Down turned off the calculator.