Tektronix 2 Series Installation and maintenance instructions

2 Series Mixed Signal Oscilloscope
MSO22, MSO24
Declassification and Security Instructions
Warning: The servicing instructions are for use by qualified personnel only. To avoid personal injury, do not perform any servicing unless you are qualified
to do so. Refer to all safety summaries prior to performing service.
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Revision A. Published July, 2022.

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Tektronix, Inc.
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USA
For product information, sales, service, and technical support:
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• Worldwide, visit to www.tek.com find contacts in your area.

Table of Contents
Preface..........................................................................................................................................................................................4
Clear and sanitize procedures...................................................................................................................................................... 5
Memory devices.....................................................................................................................................................................5
Volatile memory devices................................................................................................................................................. 5
Non-volatile memory devices..........................................................................................................................................6
How to sanitize an instrument....................................................................................................................................................... 7
Main board removal instructions............................................................................................................................................ 7
Repair charges............................................................................................................................................................................ 11
Table of Contents
2 Series Mixed Signal Oscilloscope MSO22, MSO24 Declassification and Security Instructions 3

Preface
This document helps customers with data security concerns to clear or sanitize 2 Series MSO instruments. Instruments in this series
contain a processor system with a non-removable mass storage.
These products have data storage (memory) devices and data export interfaces (USB and Ethernet). The following instructions explain
how to sanitize the instrument.
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 2 Series Mixed Signal Oscilloscope products are covered by this document.
Terms
The following terms may be used in this document:
•Clear: This removes data from media/memory before reusing it in a secured area. All reusable memory is cleared to deny access to
previously stored information by a 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 non-secured area.
•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
2 Series Mixed Signal Oscilloscope MSO22, MSO24 Declassification and Security Instructions 4

Clear and sanitize procedures
Memory devices
The following tables list the volatile and nonvolatile memory devices in the standard instrument and listed options. Detailed procedures to
clear or sanitize these devices, if any, are given following each table.
Terminology
The following terms are used in the tables in this section:
•User data – Describes the type of information stored in the device. Refers to waveforms or other measurement data 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 nor 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 modify the data and that the user cannot
modify the data.
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
modificatio
n
Data input
method
Location User
accessible
To clear To sanitize
SDRAM 2
GB (All
models)
System
memory
Both No Indirectly Written by
processor
system and
application
software
operations
Main board No Unplug the
instrument
and remove
all battery
packs for at
least 30
seconds
Unplug the
instrument
and remove
all battery
packs for at
least 30
seconds
CMOS RAM
13 bytes
Holds clock
and boot
configuratio
n data
None Yes Indirectly Boot
operations
Main board No Cannot be
cleared
Remove the
Main board
FPGA <20
MB
Acquisition
system
None No None Written by
processor
Main board No Unplug the
instrument
and remove
all battery
packs for at
least 30
seconds
Unplug the
instrument
and remove
all battery
packs for at
least 30
seconds
Clear and sanitize procedures
2 Series Mixed Signal Oscilloscope MSO22, MSO24 Declassification and Security Instructions 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
accessible
To clear To sanitize
eMMC 4 GB
or 8 GB
Stores
application
software and
user data
Both Directly Application
software
operations
and file
operations
Main board Yes Run
TekSecure
Remove the
Main board
Clear and sanitize procedures
2 Series Mixed Signal Oscilloscope MSO22, MSO24 Declassification and Security Instructions 6

How to sanitize an instrument
Do the following to sanitize your instrument if it 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 the Main board removal instructions to get access to and remove the Main board, which contains user data
and settings. Store or destroy the Main board in accordance with your organization’s guidelines.
3. Reassemble the instrument without the Main 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 HTTP://www.tek.com to find contacts in your area.
Main board removal instructions
Use this procedure to remove the Main board when you need to sanitize an instrument before returning it to Tektronix for repair. Refer to
your company's internal policies regarding handling or disposal of the Main board. A new Main board will be installed by Tektronix service
and the instrument is repaired and adjusted as necessary.
1. Disconnect the AC power adapter from the instrument.
2. If installed, remove all batteries from the instrument.
3. If installed, remove the battery pack from the instrument.
4. Place the instrument on a worksurface with the display facing up.
5. Remove the seven knobs from the front of the instrument.
How to sanitize an instrument
2 Series Mixed Signal Oscilloscope MSO22, MSO24 Declassification and Security Instructions 7

6. Flip the instrument cover so the display is facing down.
7. Remove the rectangular label from the back of the instrument. Stick the label on the back of the instrument so that it is out of the way
and not covering any screws.
8. Using a T-10 screwdriver, remove the 16 PT thread forming screws from the back of the instrument.
9. Remove the back cover of the instrument and set it aside.
How to sanitize an instrument
2 Series Mixed Signal Oscilloscope MSO22, MSO24 Declassification and Security Instructions 8

The large circuit board visible inside the instrument is the Main board.
10. Disconnect the power cable from the Main board by pressing on the tab near the wire-end of the connector and sliding the connector
away from the board.
11. Disconnect the display cable from the Main board by flipping up the latch on the backside of the connector and sliding the cable out.
Use the illustration printed on the Main board near the connector for reference.
12. Disconnect the touch screen cable from the Main board by flipping up the latch on the cable-side of the connector and sliding the
cable out of the connector.
13. Disconnect the front panel cable from the Main board by flipping up the latch on the cable-side of the connector and sliding the cable
out of the connector. This cable includes hook features, so the cable must be lifted out of the connector while sliding it out.
How to sanitize an instrument
2 Series Mixed Signal Oscilloscope MSO22, MSO24 Declassification and Security Instructions 9

14. Disconnect the two fan cables from the Main board by pressing on the tab on the connector and sliding the connector away from the
board.
15. Remove the 24 screws from the Main board.
16. Slowly work around the edges of the Main board and lift the board straight out of the enclosure.
17. Reattach the back cover using the PT thread forming screws from the instrument.
How to sanitize an instrument
2 Series Mixed Signal Oscilloscope MSO22, MSO24 Declassification and Security Instructions 10