40
Agilent E8663B Analog Signal Generator User’s Guide
Basic Operation
Using Security Functions
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 cannot use the security functions, the storage media must be
physically removed from the instrument. This requires removal of the processor board, which should then
be rendered unusable and discarded. The instrument can then be sent to a repair facility for new parts,
repair, and calibration.
Refer to the
E8663B Analog Signal Generator Service Guide
for disassembly procedures.
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.
Using the Secure Display
This function prevents unauthorized personnel from reading the instrument display and tampering with
the current configuration through the front panel. The display is blanked, except for the message
***
SECURE DISPLAY ACTIVATED ***
, and the front panel keys are disabled. Once this function is activated,
the power must be cycled to re- enable the display and front panel keys.
To apply this function, press
Utility
>
Display
>
More (1 of 2)
>
Activate Secure Display
>
Confirm Secure Display