Tektronix 4 Series Installation and maintenance instructions

4 Series Mixed Signal Oscilloscopes
Declassification and Security Instructions
MSO44, MSO46
Warning: The servicing instructions are for use by qualified personnel only. To avoid personal injury, do not perform any servicing unless you are
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Table of Contents
Preface..........................................................................................................................................................................................4
Reference.............................................................................................................................................................................. 4
Supported products................................................................................................................................................................4
Terms..................................................................................................................................................................................... 4
Clear and sanitize procedures...................................................................................................................................................... 5
Non-volatile and volatile memory device table terminology................................................................................................... 5
Memory devices.....................................................................................................................................................................5
Media and data export devices.............................................................................................................................................. 7
How to sanitize a working instrument.................................................................................................................................... 8
How to sanitize a non-functional instrument................................................................................................................................. 9
Repair charges............................................................................................................................................................................13
Table of Contents
4 Series Mixed Signal Oscilloscopes Declassification and Security Instructions MSO44, MSO46 3

Preface
This document helps customers with data security concerns to clear or sanitize 4 Series MSO instruments without factory-installed Option
4-SEC.
This series of instruments contain a processor system with non-removable mass storage.
These products have data storage (memory) devices and data export interfaces (USB and Ethernet). These instructions describe how to
clear or sanitize the memory devices and disable the data output interfaces. The instructions also describe how to sanitize an instrument
that is not functioning.
Reference
The procedures in this document are written to meet the requirements specified in:
• National Industrial Security Program Operating Manual (NISPOM), DoD 5220.22–M, Chapter 8
• Defense Security Service Manual for the Certification and Accreditation of Classified Systems under the NISPOM
Supported products
Tektronix 4 Series Mixed Signal Oscilloscope products are covered by this document.
Terms
The following terms may be used in this document:
•Clear. This eradicates data on media/memory before reusing it in a secured area. All reusable memory is cleared to deny access to
previously stored information by standard means of access.
•Erase. This is equivalent to clear.
•Media. Storage/data export device. A device that stores or exports data from the instrument, such as a USB flash drive or USB port.
•Sanitize. This removes the data from media/memory so that the data cannot be recovered using any known technology. This is
typically used when the device is moved (temporarily or permanently) from a secured area to a nonsecured area.
•Scrub. This is equivalent to sanitize.
•Remove. This is a physical means to clear the data by removing the memory device from the instrument. Instructions are available in
the product service manual.
•User-Accessible. The user can directly retrieve the memory device contents.
•User-Modifiable. The memory device can be written to by the user during normal instrument operation, using the instrument user
interface or remote control.
•Volatile memory. Memory that loses data when the instrument is powered off.
•Nonvolatile memory. Memory that retains data when the instrument is powered off.
•Power off. Some instruments have a “Standby” mode, in which power is still supplied to the instrument. For clearing data, putting the
instrument in Standby mode does not qualify as powering off. For these products, you must either push a rear-panel OFF switch or
remove the power source from the instrument.
•Instrument Declassification. A term that refers to procedures that must be undertaken before an instrument can be removed from a
secure environment. Declassification procedures include memory sanitization, memory removal, and sometimes both.
Preface
4 Series Mixed Signal Oscilloscopes Declassification and Security Instructions MSO44, MSO46 4

Clear and sanitize procedures
Non-volatile and volatile memory device table terminology
The tables in this section use the following terms:
•User data. Describes the type of information stored in the device. Refers to waveforms or other measurement information representing
signals connected to the instrument by users.
•User settings. Describes the type of information stored in the device. Refers to instrument settings that can be changed by the user.
•Both. Describes the type of information stored in the device. It means that both user data and user settings are stored in the device.
•None. Describes the type of information stored in the device. It means that neither user data or user settings are stored in the device.
•Directly. Describes how data is modified. It means that the user can modify the data.
•Indirectly. Describes how data is modified. It means that the instrument system resources modifies the data and that the user cannot
modify the data.
Memory devices
The following tables list the volatile and non-volatile memory devices in the instrument.
Volatile memory devices
These are the memory capacities at the time of publishing this document, but are subject to change.
Type and
size
Function Type of
user info
stored
Backed-
up by
battery
Method of
modification
Data input
method
Location User
acce-
ssible
To clear To sanitize
SDRAM 4
GB (All
models)
Host
processor
memory
User data No Indirectly Written by
processor
system
Processor
board
No Unplug the
instrument for at
least 30
seconds
Unplug the
instrument for at
least 30
seconds
SDRAM
MSO44: 4
GB
MSO46: 8
GB
Holds active
acquisition
data
User data No Indirectly Application
software
operations
Module
socket
(SODIMM)
on the
Acquisition
board
No Unplug the
instrument for at
least 30
seconds
Unplug the
instrument for at
least 30
seconds
SDRAM
512 MB
Holds video
graphics
data
User data No Indirectly Application
software
operations
Acquisition
board
No Unplug the
instrument for at
least 30
seconds
Unplug the
instrument for at
least 30
seconds
CMOS
RAM 7
bytes
Holds clock
and boots
configuration
data
None Yes Indirectly boot
operations
Processor
board
No Cannot be
cleared
Unplug the
instrument for a
minimum of 30
seconds
FPGA <30
MB
Interface
between
compute
system and
acquisition
system
None No None Written by
processor
system
Acquisition
board
No Unplug the
instrument for a
minimum of 30
seconds
Unplug the
instrument for a
minimum of 30
seconds
Clear and sanitize procedures
4 Series Mixed Signal Oscilloscopes Declassification and Security Instructions MSO44, MSO46 5

Non-volatile memory devices
These are the memory capacities at the time of publishing this document, but are subject to change.
Type and
size
Function Type of user
info stored
Method of
modification
Data input
method
Location User
acce-
ssible
To clear To sanitize
Primary
e.MMC 32
GB
Stores Host
instrument
Linux operating
system,
application
software, and
instrument
settings
None Indirect Written by
processor
system,
software
operations
Processor
board
No Not applicable,
does not contain
user data or
settings. Clearing
would disable
instrument
functionality
Not applicable,
does not contain
user data or
settings.
Sanitizing would
disable instrument
functionality
Secondary
e.MMC 32
GB
Stores user
data including
waveforms,
measurement
results and
instrument
settings
Waveforms,
measurement
results,
instrument
settings
Direct Application
software
operations
and file
operations
Processor
board
Yes Run TekSecure Run TekSecure
EEPROM 2
Kbit
Stores factory
data,maintenan
ce data
None Indirect Factory
operations
Acquisitio
n board
Yes Not applicable,
does not contain
user data or
settings. Clearing
would disable
instrument
functionality
Not applicable,
does not contain
user data or
settings.
Sanitizing would
disable instrument
functionality
EEPROM 1
Kb Two to
four pieces
depending
on model
Stores the
SODIMM
memory
configuration
data (SPD)
None None Factory
operations
Module
socket
(SODIMM
) on
acquisition
board
No Not applicable,
does not contain
user data or
settings. Clearing
would disable
instrument
functionality
Not applicable,
does not contain
user data or
settings.
Sanitizing would
disable instrument
functionality
Flash
Memory 32
KB
Stores power
management
controller
firmware
None Indirect Application
software
operations
Internal to
the
MC9S08
microcontr
oller on
the
acquisition
board
No Not applicable,
does not contain
user data or
settings. Clearing
would disable
instrument
functionality
Not applicable,
does not contain
user data or
settings.
Sanitizing would
disable instrument
functionality
Flash
Memory 64
KB
Stores analog
board
microcontroller
firmware
None Indirect Application
software
operations
Internal to
the KL14
microcontr
oller on
the
Acquisitio
n board
No Not applicable,
does not contain
user data or
settings. Clearing
would disable
instrument
functionality
Not applicable,
does not contain
user data or
settings.
Sanitizing would
disable instrument
functionality
Clear and sanitize procedures
4 Series Mixed Signal Oscilloscopes Declassification and Security Instructions MSO44, MSO46 6

Media and data export devices
The following table lists the data export devices in the instrument.
Type Function Method of
modification
Data input method Location User accessible
USB Host ports User storage and
recall of reference
waveforms, screen
images, and
instrument setups,
and installation of
firmware updates
using removable USB
flash drives
Directly User writeable Three USB Host
ports on front of the
instrument; two USB
Host ports on the
back of the
instrument
Yes
USB Device port Remote control and
data transfer to a PC
Directly Remote control using
USBTMC
USB Device port on
back of the
instrument
Yes
Ethernet Transfer data and
remote control of
instrument.
Directly Remote control using
LXI, VISA, or Socket
Server
Ethernet port on back
of instrument
Yes
Clear and sanitize procedures
4 Series Mixed Signal Oscilloscopes Declassification and Security Instructions MSO44, MSO46 7

How to sanitize a working instrument
Sanitize means that all data in non-volatile memory is changed or overwritten such that the original data is no longer in memory, and that
the data cannot be recovered using any known technology. You typically do a sanitize operation when you:
• Turn the instrument over to another person or department
• Move an instrument (temporarily or permanently) from a secured area to a nonsecured area
• Send an instrument to Tektronix for calibration and/or repair
Sanitizing is done through commands on the instrument. To sanitize the instrument:
1. Remove any USB memory devices from the instrument, and store or destroy the USB memory devices in accordance with your
organization’s guidelines.
2. Clear the Network Configuration password (if set):
a. Enter the instrument’s IP address into a Web browser on a PC that has network access to the instrument.
b. Click the Security for Network Config link on the left side of the screen.
c. Click Submit:
• If a password was set for this function, you are requested to enter the password. If the password is accepted, the password is
set to blank (the default setting of the access password fields).
• If a password was not set for this function, the screen displays the message that the password was successfully changed (to a
blank password).
3. Clear the network mDNS Hostname and description:
a. Enter the instrument’s IP address into a Web browser on a PC that has network access to the instrument.
b. Click the Network Configuration link on the left side of the screen.
c. Delete any existing text in both of the Host Settings fields.
d. Click the Host Settings Submit button. A message appears stating that the field is empty, and will be configured to the original
factory default value.
e. Click OK. The message closes and the fields are restored to their original factory settings.
4. Clear the Ethernet port settings:
a. Disconnect the Ethernet cable from the instrument.
b. Open the Utility > I/O menu.
c. Clear all information from the Host Name, Domain Name, and Service Name fields.
d. Click the Network Address Manual button.
e. Manually change the Instrument IP Address, Subnet Mask, Gateway IP Address, and DNS IP Address information to
00.00.00.00.
f. Tap Apply Changes. It will take several moments for the changes to take effect.
g. Tap outside the menu to close the menu.
Note: You can also clear the instrument Address settings by accessing the instrument’s web-based interface. Connect the
instrument to your network, enter the instrument’s IP address into a Web browser on a PC that is connected to the same
network as the instrument, click the Network Configuration link on the left side of the screen, select the Manual TCP/IP
Mode box, clear all information from all fields, and click the Submit button for the Address Settings.
5. Open the Utility > Security menu and clear the password used to access enabling/disabling ports and software updates. See the Help
system for information on the Security menu functions.
6. Tap TekSecure Erase Memory to clear/reset internal memory.
7. Push the Default Setup button before powering off the instrument.
Clear and sanitize procedures
4 Series Mixed Signal Oscilloscopes Declassification and Security Instructions MSO44, MSO46 8

How to sanitize a non-functional instrument
Do the following to sanitize your instrument if it is not functioning and must be returned to Tektronix for repair:
1. Remove all external USB memory devices and store or destroy the USB memory devices in accordance with your organization’s
guidelines.
2. Follow the instructions in Processor board removal instructions on page 9 to get access to and remove the Processor board, which
contains user data and settings. Store or destroy the Processor board in accordance with your organization’s guidelines.
3. Reassemble the instrument without the Processor board and return it to Tektronix. The instrument will then be repaired and calibrated
as necessary.
In North America, contact the Tektronix Customer Care Center (1-800-833-9200) for assistance with returning the instrument to a repair
center. Worldwide, visit www.tektronix.com to find contacts in your area.
Processor board removal instructions
Use these procedures to remove the Processor board when you need to sanitize a nonfunctional instrument before returning the
instrument to Tektronix for repair. Refer to your company's internal policies regarding handling or disposal of the Processor board. A new
Processor board is installed and the instrument is repaired and adjusted as necessary.
Warning: Before doing this procedure, disconnect the power cord from the line voltage source. Failure to do so could cause
serious injury or death.
CAUTION: To avoid damaging other circuits in the instrument, perform the following procedure in a static-safe environment with
proper electrostatic discharge controls in place.
CAUTION: Do not lay the instrument on its front while disassembling the instrument. All disassembly steps can be done with the
instrument positioned as instructed in the steps. Laying the instrument on its front can damage the controls.
Access the chassis
1. Position the instrument in the normal operating position.
2. Remove the handle from the instrument:
a. Use a Torx T-10 screwdriver to remove two screws from each end of the handle.
b. Remove the handle, external handle hubs, and screws aside.
3. Remove the metal grill from the rear of the instrument:
a. Use a Torx T-10 screwdriver to remove the ten (10) screws located on the grill.
b. Remove the grill.
4. Remove the internal handle hubs:
a. Use a Torx T-10 screwdriver to remove the eight (8) Torx T-10 screws from the internal hub assemblies (four screws on each hub).
b. Remove the internal handle hub assemblies and set aside. Keep the hub assemblies together for each side.
5. Remove the feet from the bottom of the instrument:
a. Position the instrument so the bottom is facing up.
b. Open the feet.
c. Use a Torx T-10 screwdriver to remove the four (4) Torx T-10 screwdriver to screws from each foot.
How to sanitize a non-functional instrument
4 Series Mixed Signal Oscilloscopes Declassification and Security Instructions MSO44, MSO46 9

d. Remove the feet and set aside.
6. Remove the rear plastic case from the instrument:
a. Use a Torx T-10 screwdriver to remove the six (6) screws from the back of the instrument case.
b. Lift the rear plastic case off the back of the instrument, and set it aside.
7. Separate the rear metal chassis from the front chassis (with the instrument still in the bottom-up position):
a. Use a Torx T-10 screwdriver to remove the 25 screws securing the rear chassis to the front chassis. There are 24 screws around
the chassis edges, and one (1) screw beneath the HDMI connector.
b. Remove the three (3) nuts and washers from the BNC connectors.
c. Gently pry apart the rear chassis assembly. The rear chassis is held in position mostly by the friction of the three BNC connectors.
d. Continue prying the chassis apart until you have the two halves separated and can access the cables.
e. Disconnect the two power cable connectors.
How to sanitize a non-functional instrument
4 Series Mixed Signal Oscilloscopes Declassification and Security Instructions MSO44, MSO46 10