Agilent Technologies Infinium DCA 86100A, Service Manual

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General Information
Memory Declassification Procedure
Memory Declassification Procedure
Some test equipment users have a need to “declassify” or “sanitize” their instruments for security
purposes. This involves following a procedure that clears all user data from the instrument´s
memory. The result is a sanitized instrument that can be removed from a secure area without any
chance of classified data being recovered from it.
Follow the procedure below to ensure that your DCA no longer contains any user configurations
or data.
1 Turn instrument off and replace the hard drive, refer to “To Replace the A9 Hard Drive” on page
7-39 .
2 Press the “Default Setup” key two times to clear SRAM (NV RAM) on Scope Interface Board and
Acquisition Board Sequencer Memory. This sets the current state and prior state to default
(known) settings.
3 To clear A13 Acquisition assembly “FIFO Channel Memory”, A14 Counter Assembly (86100C
only) “Sequencer Memory”, GPIB address, and QuickMeasure Config, follow the Step a through
Step h below:
N O T E Although the FIFO memory cannot be retrieved by the instrument after the unit has been turned
off, it is stored in memory nonetheless. The following process stores “noise” into all four channels
of FIFO memory.
a Install modules (any measurement module) into both left and right slots. Do NOT connect any
signal to the inputs of the channels.
b Enable all four channels by pressing the numbered Channel key above the modules.
c Change # Points/Waveform = 4096 (max). This sets up the DCA to overwrite all waveform
memory.
d Click Setup->Acquisition.
e Click Manual and enter 4096.
f Enter Pattern Lock Mode (86100C only).
g Click the Pattern Lock button.
N O T E This will result in a fail, this is expected.
h Click Cancel.
4 Reset Remote Interface (GPIB) Address
a Clicking Utilities, Remote Interface.
b Enter 7.
c Close the window.
5 Set QuickMeasure Configuration to default.
a Click Measure, QuickMeasureConfig.
b Click the “Apply Default Setup to Quick Measure” checkbox.