Utility
TDS3000B Serie s User Manual
3-73
Backlight Time-Out. Press this button to adjust the backlight time-out
delay. This feature automatic ally 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 confi dential 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:
H Replaces all waveforms in all reference memories with null
sample values
H Replaces the current front-panel setup and all stored setups with
the factory setup
H Calculates the checksums of all waveform memory and setup
memory locations to verify successful completion of waveform
and setup erasure
H Displays a confirmation or warning message if the checksum
calculation is succe ssful or unsuccessful
After you execute t he 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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