Agilent Technologies E8257D PSG User Manual page 86

Basic Operation
Using Security Functions
Setting the Secure Mode Level
1. Press Utility > Memory Catalog > More (1 of 2) > Security > Security Level.
2. Choose from the following selections:
None − equivalent to a factory preset, no user information is lost
Erase − equivalent to Erase All
Overwrite − equivalent to Erase and Overwrite All
Sanitize − equivalent to Erase and Sanitize All
Activating the Secure Mode
CAUTION Once you activate secure mode (by pressing Confirm), you cannot deactivate or decrease
the security level; the erasure actions for that security level execute at the next power
cycle. Once you activate secure mode, you can only increase the security level until you
cycle power. For example, you can change Erase to Overwrite, but not the reverse.
After the power cycle, the security level selection remains the same, but the secure mode
is not activated.
Press Utility > Memory Catalog > More (1 of 2) > Security > Enter Secure Mode > Confirm.
The Enter Secure Mode softkey changes to Secure Mode Activated.
If Your Instrument is Not Functioning
If the instrument is not functioning and you are unable to use the security functions, you may
physically remove the processor board, hard disk or flash drive if installed, from the instrument.
Once these assemblies are removed, proceed as follows:
For removal and replacement procedures, refer to the Agilent PSG Signal Generators Service Guide.
Processor Board
Either
• Discard the processor board and send the instrument to a repair facility. A new processor board
will be installed and the instrument will be repaired and calibrated. If the instrument is still
under warranty, you will not be charged for the new processor board.
or
• If you have another working instrument, install the processor board into that instrument and
erase the memory. Then reinstall the processor board back into the non–working instrument and
send it to a repair facility for repair and calibration. If you discover that the processor board
does not function in the working instrument, discard the processor board and note that it caused
the instrument failure on the repair order. If the instrument is still under warranty, you will not
be charged for the new processor board.
Hard Disk
Either
• Discard the hard disk and send the instrument to a repair facility. Indicate on the repair order
that the hard disk was removed and must be replaced. A new hard disk will be installed and the
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