Function Keys

About the PT2000 and TopGun

Function Keys

There are four function keys, <F1> through <F4>, at the top of the keypad. Alpha mode changes these keys to <F5> through <F8>. Actions assigned to the function keys are determined by the active program.

Action Keys

There are four action keys: <I/O>, <Alpha>, <BKSP>, and <ENTER>.

Note: If the portable does not power on when the <I/O> key is pressed, replace the alkaline batteries or recharge the battery pack (refer to Appendix E).

<I/O>: Press this key to turn the portable on and off. When turned on, the portable beeps and returns to its previous location when it last shut off. The portable does not beep when the <I/O> key is pressed to turn the unit off. The <Alpha> key has no effect on the <I/O> key.

<Alpha>: Press the <Alpha> key to toggle between normal and alpha modes. In normal mode, a press of a key either inserts the nonletter character printed on or above the key or performs an action (for example, clearing the entry or scrolling through the display). In alpha mode, a press of a key inserts the letter printed on it.

The following example uses two keys to illustrate the difference between alpha mode and normal mode:

Result of Keypress

Key

Normal Mode

Alpha Mode

%

H

8

P

12

PT2000™ & TopGun™

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PSC TopGun, PT2000 manual Function Keys, Action Keys