How do you erase the NVRAM?
You can erase all information in nonvolatile RAM by holding down both the WAVEFORM and TRIGGER major menu buttons when you turn on the oscilloscope. Release the buttons after you hear to sets of beeps. When the power-on sequence is complete, the message "Teksecure Erase Memory Status: Erased, Instrument ID, on-time, and number of power-ups retained" will appear on the display.
When NVRAM is erased in this manner, the oscilloscope writes the hexadecimal value DEAD over all nonvolatile RAM locations for settings, traces, and saved-trace descriptions.
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