Utility
TDS3000 Series User Manual
3–63
Backlight Time-Out. Press this button to adjust the backlight time-out
delay. This feature automatically turns the backlight off after a
period of time if the oscilloscope is not being used. Use the general
purpose knob to set the backlight time-out delay to a fixed time or to
∞ (time-out off). Push any button to turn the backlight back on after
an automatic time-out.
Backlight time-out operates only when you use battery power.
Tek Secure. If you have acquired confidential data on your oscillo-
scope, you may want to execute the Tek Secure function before you
return the oscilloscope to general use. The Tek Secure function does
the following tasks:
Replaces all waveforms in all reference memories with null
sample values
Replaces the current front-panel setup and all stored setups with
the factory setup
Calculates the checksums of all waveform memory and setup
memory locations to verify successful completion of waveform
and setup erasure
Displays a confirmation or warning message if the checksum
calculation is successful or unsuccessful
After you execute the Tek Secure function, you must turn off the
oscilloscope power and then turn the power back on to complete the
process.
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