Tektronix WFM6120 Security Instructions

Clear and Sanitize Procedures
Table 1: Volatile Memory Devices, (cont.)
Type and
minimum size Function
User
modifiable
1
Data input
method Location To clear To sanitize
SDRAM 16 M X 16 CPU RAM
No
CPU access
U422, U423, U521,
U522 on Main board
None Remove the power
source from the
instrument f
or at
least 20 seconds
SRAM 256 K X 16
PLD RAM No PLD access U511, U513, U512,
U514 on Main
board
None Remove the power
source from
the
instrument for at
least 20 seconds
1
During normal instrument operation.
Table 2: No
nvolatile Memory Devices
Type and
minimum size Function
User
modifiable
1
Data input
method Location To clear To sanitize
Flash Memory
4Mb
Audio
measurement
No Programmed
by software
during software
upgrade
Plugs into optional Digital
Audio board, IC9 on Dolby
Audio board
None Reload the
system software
per the loading
instructions
Serial EEPROM
256 X 8
Stores audio
calibration
coefficients
No Programmed
during
calibration
U421 on Analog Audio
board
Recalibrate Audio None
Serial EEPROM
256 X 8
Stores Eye
calibration
coefficients
No Programmed
during
calibration
U343 on Eye board Recalibrate Eye None
Serial EEPROM
256 X 8
Stores Composite
calibration
coefficients
No Programmed
during
calibration
U12 on Composite board Recalibrate Composite
None
Flash Memory
512 M X 16
Loads FPGAs on
power up
Contains
instrument SW,
network access
parameters, and
user-defined
presets
Yes Programmed
by software
during software
upgrade
U311, U313 on Main
board
See
Clear Presets
Procedure and Clear
IP and SNMP Address
Fields Procedure
None
PLD 8 Kb Display controller No Programmed by
flash memory
during power
up
U413 on Main board None None
Real Time Clock Stores time set by
user
Yes UI U933 on Main board
Set to GMT Set to GMT
Serial EPROM
Diagnostic logs,
Main board Pix
Mon calibration,
and factory only
Looping diagnostic
mode control
No Programmed by
software during
calibration and
diagnostics
U445 on Main board
See Clear Diagnostic
Log Procedure.
Recalibrate Pix mon
to overwrite existing
values.
None
2 WFM6120, WFM7020, and WFM7120 Declassification and Security

Tektronix WFM6120 Specifications

General

Brand	Tektronix
Model	WFM6120
Category	Monitor
Language	English