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TDS 620A, 640A, & 644A User Manual
Help
The on-line help system provides brief information about each of the digitizing
oscilloscope controls.
To use the on-line help system:
Press HELP to provide on-screen information on any front panel button, knob
or menu item (see Figure 3-36).
When you press that button, the instrument changes mode to support on-line
help. Press HELP again to return to regular operating mode. Whenever the
oscilloscope is in help mode, pressing any button (except HELP or SHIFT),
turning any knob, or pressing any menu item displays help text on the screen
that discusses that control.
The menu selections that were displayed when HELP was first pressed re-
main on the screen. On-line help is available for each menu selection dis-
played at the time the HELP button was first pressed. If you are in help mode
and want to see help on selections from non-displayed menus, you first exit
help mode, display the menu you want information on, and press HELP again
to re-enter help mode.
Figure 3-36: Initial Help Screen
Operation