Keysight PNA N5221B Option 220 Quick start guide

Installation Note
Keysight - Add 4-Port Capability
Upgrade Kit for
Version 6 Synthesizers
To Upgrade PNA N5221B and N5222B Option 220 to Option 420
Upgrade Kit Order Number: N5221BU- 620 and N5222BU- 620
Keysight Kit Number: N5222-60125

Notices
© Keysight Technologies, Inc.
2000-2021
No part of this manual may be
reproduced in any form or by any
means (including electronic storage
and retrieval or translation into a
foreign language) without prior
agreement and written consent from
Keysight Technologies, Inc. as
governed by United States and
international copyright laws.
Trademark1 Acknowledgments
Manual Part Number
N5222-90125
Edition
Edition 1, October 2021
Printed in USA/Malaysia
Published by:
Keysight Technologies
1400 Fountaingrove Parkway
Santa Rosa, CA 95403
Warranty
THE MATERIAL CONTAINED IN THIS
DOCUMENT IS PROVIDED “AS IS,”
AND IS SUBJECT TO BEING
CHANGED, WITHOUT NOTICE, IN
FUTURE EDITIONS. FURTHER, TO
THE MAXIMUM EXTENT PERMITTED
BY APPLICABLE LAW, KEYSIGHT
DISCLAIMS ALL WARRANTIES,
EITHER EXPRESS OR IMPLIED WITH
REGARD TO THIS MANUAL AND
ANY INFORMATION CONTAINED
HEREIN, INCLUDING BUT NOT
LIMITED TO THE IMPLIED
WARRANTIES OF
MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE.
KEYSIGHT SHALL NOT BE LIABLE
FOR ERRORS OR FOR INCIDENTAL
OR CONSEQUENTIAL DAMAGES IN
CONNECTION WITH THE
FURNISHING, USE, OR
PERFORMANCE OF THIS
DOCUMENT OR ANY INFORMATION
CONTAINED HEREIN. SHOULD
KEYSIGHT AND THE USER HAVE A
SEPARATE WRITTEN AGREEMENT
WITH WARRANTY TERMS
COVERING THE MATERIAL IN THIS
DOCUMENT THAT CONFLICT WITH
THESE TERMS, THE WARRANTY
TERMS IN THE SEPARATE
AGREEMENT WILL CONTROL.
Technology Licenses
The hardware and/or software
described in this document are
furnished under a license and may be
used or copied only in accordance
with the terms of such license.
U.S. Government Rights
The Software is “commercial
computer software,” as defined
by Federal Acquisition Regulation
(“FAR”) 2.101. Pursuant to FAR
12.212 and 27.405-3 and
Department of Defense FAR
Supplement (“DFARS”) 227.7202,
the U.S. government acquires
commercial computer software
under the same terms by which
the software is customarily
provided to the public.
Accordingly, Keysight provides
the Software to U.S. government
customers under its standard
commercial license, which is
embodied in its End User License
Agreement (EULA), a copy of
which can be found at
http://www.keysight.com/find/sweula
The license set forth in the EULA
represents the exclusive authority
by which the U.S. government
may use, modify, distribute, or
disclose the Software. The EULA
and the license set forth therein,
does not require or permit,
among other things, that
Keysight: (1) Furnish technical
information related to
commercial computer software
or commercial computer
software documentation that is
not customarily provided to the
public; or (2) Relinquish to, or
otherwise provide, the
government rights in excess of
these rights customarily provided
to the public to use, modify,
reproduce, release, perform,
display, or disclose commercial
computer software or
commercial computer software
documentation. No additional
government requirements
beyond those set forth in the
EULA shall apply, except to the
extent that those terms, rights, or
licenses are explicitly required
from all providers of commercial
computer software pursuant to
the FAR and the DFARS and are
set forth specifically in writing
elsewhere in the EULA. Keysight
shall be under no obligation to
update, revise or otherwise
modify the Software. With
respect to any technical data as
defined by FAR 2.101, pursuant
to FAR 12.211 and 27.404.2 and
DFARS 227.7102, the U.S.
government acquires no greater
than Limited Rights as defined in
FAR 27.401 or DFAR 227.7103-5
(c), as applicable in any technical
data.
Safety Notices
A CAUTION notice denotes a hazard. It
calls attention to an operating
procedure, practice, or the like that,
if not correctly performed or adhered
to, could result in damage to the
product or loss of important data. Do
not proceed beyond a CAUTION
notice until the indicated conditions
are fully understood and met.
A WARNING notice denotes a hazard.
It calls attention to an operating
procedure, practice, or the like that,
if not correctly performed or adhered
to, could result in personal injury or
death. Do not proceed beyond a
WARNING notice until the indicated
conditions are fully understood and
met.

3
Keysight Add 4-Port Capability Upgrade Kit
Upgrade Kit Number: N5222-60125
Installation Note
Description of the Upgrade
This upgrade converts your N5221B or N5222B Option 220 2-port analyzer to
a N5221B or N5222B Option 420 4-port analyzer by adding:
— an additional source
— an additional source synthesizer
—anadditionalmixerbrick
— two additional test port couplers
— two additional receiver couplers
— two additional source attenuators
— two additional receiver attenuators
—asplitter
— a modified front panel
—anadditionalcableguard
—LFEbiasteecombiners
— PC assembly, low frequency extension (LFE)
— new cables
Refer to “Overview of the Installation Procedure” on page 15.
This repair must be done at a service center or a self-maintainer service
center! Refer to “Getting Assistance from Keysight” on page 4.

4 Installation Note N5222-90125
Getting Assistance from Keysight
-
Getting Assistance from Keysight
Installing this upgrade kit requires special skills and experience. If you think
you may not be qualified to do the work, or need advice, contact Keysight.
Contacting Keysight
Assistance with test and measurements needs and information on finding a
local Keysight office are available on the Web at:
http://www.keysight.com/find/assist
If you do not have access to the Internet, please contact your Keysight field
engineer.
If You Have Problems With the Upgrade Kit Contents
Keysight stands behind the quality of the upgrade kit contents. If you have
problems with any item in the kit, refer to www.keysight.com and the Contact
Keysight ()link.
In any correspondence or telephone conversation, refer to the Keysight
product by its model number and full serial number. With this information,
the Keysight representative can determine whether your product is still
within its warranty period.

Installation Note N5222-90125 5
Getting Prepared
Getting Prepared
To successfully install this upgrade kit, you will need the following:
—Alicensekey-referto“License Key Redemption” below.
— A PDF copy or a paper copy of the PNA Service Guide - refer to
“Downloading the Online PNA Service Guide” below.
— An ESD-safe work area - refer to “Protecting Your Workspace from
Electrostatic Discharge” below.
— Correct tools - refer to “Tools Required for the Installation” on page 9.
The PNA contains extremely sensitive components that can be ruined if
mishandled. Follow instructions carefully when making cable connections,
especially wire harness connections.
The person performing the work accepts responsibility for the full cost of
the repair or replacement of damaged components.
IMPORTANT! Before you begin this upgrade:
—Verify your instrument’s firmware is: A.13.55 or greater.
—Verify your instrument’s IF Multiplexer (IF MUX) board, has P4, P204,
P404, P604, P804 connectors. If not, Keysight will purchase a new IF
MUX board. Refer to your instrument’s Service Guide, Chapter 7
bookmark “Removing and Replacing the A20 IF Multiplexer Board” in
the PDF Service Guidea.
—Verify your Synthesizer board is version H or greater. If not, refer to
Chapter A: “Synthesizer Board Upgrade (N5240-60074 (with
Tabs)/N5240-60076 (Without Tabs) Version F/G to Version H).”
a. See “Downloading the Online PNA Service Guide” on page 8.
IMPORTANT!
— This document contains references to legacy and new A21HMA26.5
Multiplier/Amplifier assemblies. Your model instrument may have
either legacy assemblies or the new parts installed.
— Toverify your instrument’s A21HMA26.5 Multiplier/Amplifier, refer
to “Verify the Model/Version of HMA26.5 Installed” on page 7.
— See also your instrument’s PDF Service Guide a.
a. See “Downloading the Online PNA Service Guide” on page 8.

6 Installation Note N5222-90125
Getting Prepared
-
— Enough time - refer to “About Installing the Upgrade” on page 10.
— Test equipment for the post-upgrade adjustments and full instrument
calibration. To view the equipment list, click the Chapter 3 bookmark “Tests
and Adjustments” in the PDF Service Guide1.
License Key Redemption
To enable the option product(s), you must request license key(s) file from the
Keysight Software Manager:
http://www.keysight.com/find/softwaremanager:
To complete the request, you will need to gather the following information:
— From the certificate
— Order number
— Certificate number
— From your instrument
— Model number
— Serial number
Using the information just gathered, you must request license key file(s) from
the Keysight Software Manager:
http://www.keysight.com/find/softwaremanager.
You will need to provide an email address, to which Keysight will promptly
email your license key(s) file. Refer to “License Key Redemption” on page 6.
Verify the License Contents
Refer to the license message you received from Keysight:
1. See “Downloading the Online PNA Service Guide” on page 8.
Ensure that you are connected to an external server, before attempting to
download your email and license key file.
If you are unfamiliar with the licensing process, refer to the
https://www.keysight.com/us/en/assets/9018-04534/installation-guides
/9018-04534.pdf (N5242-90024).
The enclosed Software Entitlement Certificate is a receipt, verifying that
you have purchased a licensed option for the PNA of your choice. You must
now use a Keysight Web page to request a license key file for the
instrument that will receive the option.

Installation Note N5222-90125 7
Getting Prepared
If the model number, serial number, or option number do not match those on
the license message you received from Keysight, you will not be able to install
the license key file. If this is the case, contact Keysight for assistance. Refer to
“Getting Assistance from Keysight” on page 4.
Verify the Model/Version of HMA26.5 Installed
This upgrade kit contains components for use with PNA models using the
legacy HMA26.5 part number 5086-7765. If your PNA has the newer HMA26.5
part number N5240-60101 installed you may discard these parts:
— A22 splitter 5067-4086
— W42 N5242-20009
— W43 N5242-20007
— W44 N5242-20008
(If you have the legacy 5087-7765 HMA26.5, please discard the N5245-20195
semi-rigid cables. Refer to Figure 1 on page 7.)
The new N5240-60101 HMA26.5 has the splitter integrated into the assembly.
Refer to Figure 1 on page 7.
Figure 1 Comparison of Legacy HMA26.5 (5087-7765) and New HMA26.5
(N5240-60101)
Depending on the type of Option upgrade that was purchased, your parts
kit may or may not include the following cable part numbers.

8 Installation Note N5222-90125
Getting Prepared
-
Downloading the Online PNA Service Guide
To view the online Service Guide for your PNA model number, use the following
steps:
Protecting Your Workspace from Electrostatic Discharge
For information, click on the Chapter 1 bookmark, “Electrostatic Discharge
Protection” in the PDF Service Guide1.
ESD Equipment Required for the Installation
1. See “Downloading the Online PNA Service Guide” on page 8.
Description Keysight Part Number
ESD grounding wrist strap 9300-1367
5-ft grounding cord for wrist strap 9300-0980
2 x 4 ft conductive table mat and 15-ft grounding wire 9300-0797
ESD heel strap (for use with conductive floors) 9300-1308
1. Go to www.keysight.com.
2. In the Search box, enter the model number of the analyzer (e.g., N5232B)
and click Search.
3. Click Support > Keysight Product Support.
4. In the Search Support area type your instrument’s model number (e.g.,
N2222B).
5. Press Enter.
6. Scroll down to the PRINT DOCUMENTATION section and click to select
Service Manual.
The Service Manual for your instrument will be displayed near the top of
the right column.
7. Click the hyperlink of the Service Guide title to download the PDF file.
8. When the PDF of the Service Guide is displayed, scroll through the
Contents section bookmarks to locate the information needed.

Installation Note N5222-90125 9
Getting Prepared
Tools Required for the Installation
Description Qty Part Number
T-6 TORX driver - set to 4 in-lbs (0.45 N.m) 1 N/A
T-10 TORX driver - set to 9 in-lbs (1.02 N.m) 1 N/A
T-20 TORX driver - set to 21 in-lbs (2.38 N.m) 1 N/A
5/16-in (8 mm) nutsetter or open end torque wrench - set to 10 in-lbs
(1.13 N.m)
1N/A
5/16-in (8 mm) nutsetter or open end wrench (to stabilize the bias tee
combiner when torquing cables)
1N/A
5/16-in (8 mm) nutsetter or open end torque wrench - set to 21 in-lbs
(2.38 N.m)
1N/A
T-6 TORX driver - set to 6 in-lbs (0.68 N.m) 1 N/A
T-20 TORX driver - set to 21 in-lbs (2.38 N.m) 1 N/A
5/16-in (8 mm) nutsetter or open end torque wrench- set to 8 in-lbs (0.9
N.m)
1N/A
3/16-in (5 mm) nutsetter or open end torque wrench - set to 6 in-lbs
(0.68 N.m)
1N/A
5/8-in (16 mm) nutsetter or open end torque wrench - set to 21 in-lbs
(2.38 N.m)
1N/A
1-in (25.4 mm) torque wrench - set to 72 in-lbs (8.15 N.m) 1 N/A
9 mm nutsetter or open end torque wrench - set to 21 in-lbs (2.38 N.m) 1 N/A
1/4-in (6 mm) open end wrench 1 N/A
Use a 5/16-in torque wrench set to 10 in-lbs on all cable connections,
except the front panel coupler to Bias-T combiner cable connections.
Torque these to 8 in-lbs.
Additional exception: Torque the front and rear panel bulkhead connectors
and these connections to 21 in-lb.

10 Installation Note N5222-90125
Getting Prepared
-
About Installing the Upgrade
Products affected N5221B and N5222B Option 220
Installation to be performed by Keysight service center or personnel qualified by Keysight
Estimated installation time 5 hours
Estimated adjustment time 3 hours
Estimated full instrument calibration time 7.5 hours

Installation Note N5222-90125 11
Items Included in the Upgrade Kit
Items Included in the Upgrade Kit
Check the contents of your kit against the following list. If any part is missing or
damaged, contact Keysight Technologies. Refer to “Getting Assistance from
Keysight” on page 4.
Table 1 Contents of Upgrade Kit N5222-60125
Ref
Desig. Description Qty Part Number
-- Installation note (this document) 1 N5222-90125
-- Software Entitlement Certificate (provided separately) 1 5964-5145
-- China RoHS Addendum 1 9320-6722
A8 26.5 GHz source (2) board 1 5087-7342
A13 13.5 GHz (source 2) synthesizer board 1 N5240-60074
A22 Splitter 1 5087-7139
A24 Mixer brick (2) 1 5087-7829
A26 Test port 3 receiver bridge 2 5087-7757
A27 Test port 4 receiver bridge
A30 Test port 3 coupler 2 5087-7813
A31 Test port 4 coupler
-- Dress panel, overlay – 4-Port (Option 405, 420, and 425) 1 N5222-80036
A35 Test port 3 source attenuator 2 33321-60077
A36 Test port 4 source attenuator
A43 Test port 3 receiver attenuator 2 33321-60078
A44 Test port 4 receiver attenuator
A72 LFE Bias-T combiner - port 3 4 5087-7403
A73 LFE Bias-T combiner - port 4
A70 LFE PC assembly - 2-port 1 N5291-60001
-- Vibration mount (between couplers 1 & 3, and 2 & 4) 2 04670-2725
-- Machine screw, M3 x 8, pan head (to attach A24 mixer brick to mounting plate, bias T
combiner brackets to test set (x4))
10 0515-0372
-- Bias T combiner brackets 2 N5242-00051
--
Machine screw, M4.0 x 10, pan head (2 each to attach the following boards to the
analyzer chassis: A13 13.5 GHz synthesizer board and A8 26.5 GHz source
board.)_05.cdr; _07.cdr
4 0515-0380

12 Installation Note N5222-90125
Items Included in the Upgrade Kit
-
-- Machine screw, M2.5 x 20, pan head (to attach A26 and A27 receiver coupler
assemblies to test set deck)
6 0515-0430
-- Machine screw, M3.0 x 14, pan head (to install A70 low band board) 4 0515-0665
-- Machine screw, M3.0 x 18, pan head 2 0515-0666
-- Machine screw, M3 x 6, pan head (to attach bias T combiners to brackets) 6 0515-1227
-- Machine screw, M3.0 x 20, pan head (to attach brackets to receiver couplers; to
attach A24 mixer brick to block)
7 0515-1410
-- Machine screw, M3.0 x 6, flat head (to attach dress panel to coupler plate) 2 0515-1946s
-- Machine screw, M2.5 x 14, pan head 2 0515-2141
-- Machine screw, M3.0 x 14, pan head 2 0515-2994
-- Cap – coaxial (SMA) 1 0960-0055
-- Bulkhead connector for test set front plate (hardware supplied with connector) 12 1250-3805
-- Nuts – flanged 2 5022-1087
-- Cable, assembly, coaxial A06/A06, 205 mm long (Connect to A70 LFE board) 2 8120-5017
-- Cable assembly, flat ribbon 2 8120-0982
-- Gel pad (between each test coupler and the test set front plate) 4 E4403-20033
-- Subpanel, test set – 4-port 1 N5221-00007
-- Dress panel, lower – 4-port 1 N5240-00009
-- Vibration mount (between couplers 1 & 3, and 2 & 4) 2 0460-2725
-- Cable guard, center jumper cables 1 N5242-00049
-- Cable clamp (12.9 mm wide) 4 1400-1391
-- Dust caps for test ports 4 1401-0214
-- Bracket for receiver coupler 2 N5242-00006
-- Bracket for attenuator 2 N5242-00007
W2 RF cable, 13.5 GHz (source 2) synthesizer board J1207
to A8 26.5 GHz source (2) board P1 – Top Cable – All Options – 4-Port
1 N5222-20090
W5 RF cable, A8 source (2) board P5 to W6 on bottom of analyzer – Top Cable 1 N5222-20062
W6 RF cable, W5 to A26 port 3 receiver coupler 1 N5222-20041
W7 RF cable, A8 source (2) board P3 to W8 on bottom of analyzer – Top Cable 1 N5222-20063
W8 RF cable, W7 to A23 port 4 receiver coupler 1 N5222-20042
Table 1 Contents of Upgrade Kit N5222-60125
Ref
Desig. Description Qty Part Number

Installation Note N5222-90125 13
Items Included in the Upgrade Kit
W14 RF cable, A29 port 1 coupler to front-panel Port 1 CPLR ARM 1 N5222-20030
W17 RF cable, A26 port 3 receiver coupler to front-panel REF 3 SOURCE OUT 1 N5222-20023
W18 RF cable, A30 port 3 coupler to front-panel Port 3 CPLR ARM 1 N5222-20015
W21 RF cable, A23 port 4 receiver coupler to front-panel REF 4 SOURCE OUT 1 N5222-20025
W22 RF cable, A31 port 4 coupler to front-panel Port 4 CPLR ARM 1 N5222-20018
W26 RF cable, A32 port 2 coupler to front-panel Port 2 CPLR ARM 1 N5222-20034
W30 RF cable, Front panel jumper 6 N5222-20091
W37 A33 reference mixer switch to A23 mixer brick (R1) 1 N5222-20101
W38 REF 3 RCVR R3 IN to A24 mixer brick (R3) 1 N5222-20024
W39 REF 4 RCVR R4 IN to A24 mixer brick (R4) 1 N5222-20027
W42 RF cable, A21 HMA26.5 to A22 splitter 1 N5222-20009
W43 RF cable, A22 splitter to A23 mixer brick 1 N5222-20007
W44 RF cable, A22 splitter to A24 mixer brick 1 N5222-20008
W50 RF cable, REF 4 RCVR R4 IN to A24 mixer brick (R4) 1 N5222-20058
W52 RF cable, A23 mixer brick (R1) to A20 IF multiplexer (P411) 1 N5242-60021
W53 RF cable, A23 mixer brick (R2) to A20 IF multiplexer (P412) 1 N5242-60022
W55 RF cable, A24 mixer brick (D) to A20 IF multiplexer (P801) 1 N5242-60024
W56 RF cable, A24 mixer brick (R4) to A20 IF multiplexer (P414) 1 N5242-60019
W57 RF cable, A24 mixer brick (R3) to A20 IF multiplexer (P413) 1 N5242-60020
W58 RF cable, A24 mixer brick (C) to A20 IF multiplexer (P601) 1 N5242-60023
W60 RF cable, A20 IF multiplexer board P203 to A12 SPAM board (J2) 1 N5242-60013
W62 RF cable, A20 IF multiplexer board P603 to A12 SPAM board (J5) 1 N5242-60015
W67 RF cable, A10 frequency reference board J7 to bottom of A13 13.5 GHz (source 2)
synthesizer board J5 (4-port only) – Top cable assembly
1 N5242-60030
W71 A25 port 1 receiver coupler to A34 port 1 source attenuator 1 N5222-20002
W76 A35 port 3 source attenuator to front-panel Port 3 SOURCE OUT 1 N5222-20019
W79 A27 port 4 receiver coupler to A36 port 4 source attenuator 1 N5222-20001
W80 A36 port 4 source attenuator to front-panel Port 4 SOURCE OUT 1 N5222-20020
W89 Port 3 RCVR C IN to A43 port 3 receiver attenuator 1 N5222-20021
Table 1 Contents of Upgrade Kit N5222-60125
Ref
Desig. Description Qty Part Number

14 Installation Note N5222-90125
Items Included in the Upgrade Kit
-
W90 A43 port 3 receiver attenuator to A24 mixer brick (C) 1 N5222-20006
W91 Port 4 RCVR D IN to A44 port 4 receiver attenuator 1 N5222-20022
W92 A44 port 4 receiver attenuator to A24 mixer brick (D) 1 N5222-20026
W162 RF cable, assembly FP, A29 port 1 test coupler to A71 port 1 Bias combiner 1 N5222-20115
W163 RF cable, assembly FP, Port 3 CPLR THRU to A72 port 3 Bias combiner 1 N5222-20121
W164 RF cable, assembly FP, A30 Port 3 test coupler to A72 port 3 bias combiner 1 N5222-20117
W165 RF cable, assembly FP, Port 4 CPLR THRU to A73 port 4 Bias combiner 1 N5222-20122
W166 RF cable, assembly FP, A31 port 4 test port coupler to A73 port 4 Bias combiner 1 N5222-20118
W168 RF cable, assembly FP, A31 port 4 test port coupler to A73 port 4 Bias combiner 1 N5222-20116
W168 RF cable, assembly REF 3 RCVR R3 IN to A24 mixer brick (R3) 1 N5222-20125
W168 Cable assembly, RF CA, A70 LFE board to Source 2 1 N5242-60079
W195 A72 bias combiner “RF IN” to conn “Port3” on LFE board 2N5240-60098
W196 A73 bias combiner “RF IN” to conn “Port4” on LFE board
- Ribbon cable, A19 test set motherboard J213 to A24 mixer brick (2) 1 N5242-60006
- Cable, DC, 2–pin to R/A SMP (Port 3 bias combiner DC to A19 Bias J543 and Port 4
bias combiner DC to A19 Bias J544.) 2 N5240-60091
Extra quantities of items such as protective plastic caps, screws, cable ties,
and cable clamps may be included in this upgrade kit. It is normal for some
of these items to remain unused after the upgrade is completed.
Table 1 Contents of Upgrade Kit N5222-60125
Ref
Desig. Description Qty Part Number

Installation Note N5222-90125 15
Installation Procedure for the Upgrade
Installation Procedure for the Upgrade
The network analyzer must be in proper working condition prior to installing
this option. Any necessary repairs must be made before proceeding with this
installation.
Overview of the Installation Procedure
“Step 1. Obtain a Keyword and Verify the Information.”
“Step 2. Remove the Outer Cover.”
“Step 3. Remove the Inner Cover.”
“Step 4. Inspect and (If Necessary) Remove the A4, A11, and A13 Synthesizer
Boards, if They Are Not Version H.”
“Step 5. Remove the Front Panel Assembly.”
“Step 6. Remove the A19 Test Set Motherboard.”
“Step 7. Disconnect A71 and A74 Bias-Tee Combiner’s LFE Cables From the
A70 Low Frequency Extension (LFE) Board and the Ends of the LFE Cables
Connected to the IF Multiplier (IF MUX) Board.”
“Step 8. Remove the A75 Low Frequency Extension (LFE) Board.”
“Step 9. Remove Some Low Frequency Extension (LFE) Cables (8120-5014
(x1), 8120-5021 (x1), N5240-60097 (x1), and N5240-60098) From the IF
Multiplexer (IF MUX) Board.”
“Step 10. Remove Some of the Mixer Brick (MXB) Cables.”
“Step 11. Remove Some Gray Cables From the A20 IF Multiplexer Board.”
“Step 13. Remove Some Bottom-Side Semi-Rigid Test Set Cables.”
“Step 12. Remove the A70 LFE Board Bracket.”
“Step 14. Remove the A23 Mixer Brick Assembly.”
“Step 15. Assemble the A24 Mixer Brick and A22 Splitter Assemblies.”
“Step 16. Install the A23/A24 Mixer Brick Block Assembly.”
“Step 17. Assemble the A26 and A27 Receiver Bridge Assemblies.”
“Step 18. Install the A26 and A27 Receiver Bridge Assemblies.”
“Step 19. Assemble A35/A36 Source and A43/A44 Receiver Attenuators.”
“Step 20. Install A35/A36 Source and A43/A44 Receiver Attenuators.”
This installation requires the removal of the analyzer’s protective
outer covers. The analyzer must be powered down and
disconnected from the mains supply before performing this
procedure.

16 Installation Note N5222-90125
Installation Procedure for the Upgrade
-
“Step 21. Assemble the A72 (Port 3) and A73 (Port 4) Bias Tee Combiner
Assemblies.”
“Step 22. Install the A72 and A73 Bias Tee Combiner Assemblies.”
“Step 23. Assemble the A29 - A32 Test Port Coupler Assemblies.”
“Step 24. Install the LED Boards and Test Port Coupler Assemblies On the
4-Port Test Set Front Plate.”
“Step 25. Install the Bulkhead Connectors in the Test Set Front Plate.”
“Step 26. Install the 4-Port Coupler Plate Assembly to the Deck.”
“Step 27. Assemble the A5 and A8 26.5 GHz Source 1 and 2 Assemblies.”
“Step 28. Install the A8 26.5 GHz Source 2 Assembly.”
“Step 29. Install the A13 13.5 GHz (Source 2) Synthesizer Board and Cables.”
“Step 30. Connect New Cables to A20 IF Multiplexer (IF MUX) Board.”
“Step 31. Reinstall A70 Low Frequency Extension (LFE) Board Bracket.”
“Step 32. Install the New Mixer Brick (MXB) Cables and Route Cables.”
“Step 33. Reconnect/Connect and Route Low Frequency Extension (LFE)
Cables (8120-5014 (x2) and 8120-5017 (x3)) and the Other Ends of the
Cables Connected to the IF Multiplexer (IF MUX) Board.”
“Step 34. Install the New A70 Low Frequency Extension (LFE) Board.”
“Step 35. Connect/Reconnect A71–A74 Bias-Tee Combiner’s Cables to A70
Low Frequency Extension (LFE) Board and the Other Ends of the New Cables
Connected to the IF Multiplier (IF MUX) Board.”
“Step 36. Install the Test Set Cables and Install Cable Clamps on Ferrite
Beads.”
“Step 37. Secure the Front Panel Bulkhead Connectors.”
“Step 38 Reinstall the A19 Test Set Motherboard.”
“Step 39. Install Cables on the A19 Test Set Motherboard.”
“Step 40. Install/Reinstall the A71–74 Bias-Tee combiner’s Gray Low
Frequency Extension (LFE) DC Bias Cables and Route Cables.”
“Step 41. Install the Other End of the Bias-Tee Combiner Cables to the Source
Synthesizer and LO Synthesizer Board Gray Cables.”
“Step 42. Replace the Front Panel’s Lower Dress Panel.”
“Step 43. Reinstall Front Panel Assembly.”
“Step 44. Install the New Lower Front Panel Overlay.”
“Step 45. Install the Front Panel Jumper Cables.”
“Step 46. DC Continuity Test the LFE Board and Test Ports.”

Installation Note N5222-90125 17
Installation Procedure for the Upgrade
“Step 47. Position the Cables and Wires to Prevent Pinching.”
“Step 48. Reinstall the Inner Cover.”
“Step 49. Reinstall the Outer Cover.”
“Step 50. Remove Option 220 License.”
“Step 51. Enable Option 420.”
“Step 52. Verify the PNA Analyzer Program is Running with the Correct
Options.”
“Step 53. Perform Post-Upgrade Adjustments and Calibration.”
“Step 54. Prepare the PNA for the User.”
Step 1. Obtain a Keyword and Verify the Information
Follow the instructions on the Software Entitlement Certificate supplied to
obtain a license key file for installation of this upgrade. Refer to “License Key
Redemption” on page 6.
Verify that the model number, serial number, and option number information
on the license key match those of the instrument on which this upgrade will be
installed.
Once the license key file has been received and the information verified, you
can proceed with the installation at step 2.
Step 2. Remove the Outer Cover
For instructions, click the Chapter 7 bookmark “Removing the Covers” in the
PDF Service Guide.
Step 3. Remove the Inner Cover
For instructions, click the Chapter 7 bookmark “Removing the Covers” in the
PDF Service Guide1.
If the model number, serial number, or option number do not match those
on your license key file, you will not be able to install the option. If this is
the case, contact Keysight for assistance before beginning the installation
of this upgrade. Refer to “Contacting Keysight” on page 4.

18 Installation Note N5222-90125
Installation Procedure for the Upgrade
-
Step 4. Inspect and (If Necessary) Remove the A4, A11, and A13
Synthesizer Boards, if They Are Not Version H
Verify that the synthesizer boards are all version H or greater.
1. If your synthesizer boards are all H or greater, on the PNA: Press Utility >
System > Service > Utilities > View EEPROM Headers.
2. Verify the LO Synthesizer, Src1 Synth, and Src2 Synth boards are all
version H or greater.
Refer to Figure 2 on page 18.
Figure 2 EERPOM Header Info Window
The N5240-60074 (with tabs) or N5240-60076 (without tabs) pretested
synthesizer boards will both show Board P/N: N5240-63074 in the
EEPROM window (as shown in Figure 2 on page 18).
If the synthesizer board part number displayed in the EEPROM Header
window is not N5240-63074 (e.g. N5242-63150), you will need to order
new synthesizer boards. Refer to “Contacting Keysight” on page 5. Refer
to “Contacting Keysight” on page 4.

Installation Note N5222-90125 19
Installation Procedure for the Upgrade
3. If all of the boards are version H or greater, proceed to “Step 5. Remove
the Front Panel Assembly”.
4. If your synthesizer boards are not H or greater, remove the synthesizer
boards for upgrading:
For instructions, click the Chapter 7 bookmark “Removing and Replacing the
A4-A13 Boards” (i.e., refer to your PNA’s serial number prefix section) in the
PDF Service Guide1.
Save all mounting hardware (except the stabilizer bracket) for reuse.
Refer to Appendix A:, “Synthesizer Board Upgrade (N5240-60074 (with
Tabs)/N5240-60076 (Without Tabs) Version F/G to Version H).”
Step 5. Remove the Front Panel Assembly
For instructions, click the Chapter 7 bookmark “Removing and Replacing the
Front Panel Assembly” in the PDF Service Guide1.
Step 6. Remove the A19 Test Set Motherboard
For instructions, click the Chapter 7 bookmark “Removing and Replacing
the A19 test set motherboard” in the PDF Service Guide1.
IMPORTANT! This step includes disconnecting and laying aside several
gray cables. Ensure that they are labeled.
1. See “Downloading the Online PNA Service Guide” on page 8.

20 Installation Note N5222-90125
Installation Procedure for the Upgrade
-
Step 7. Disconnect A71 and A74 Bias-Tee Combiner’s LFE Cables
From the A70 Low Frequency Extension (LFE) Board and the Ends of
the LFE Cables Connected to the IF Multiplier (IF MUX) Board
1. Disconnect the (8120-5014 (x2), 8120-5017 (x1), and 8120-5021 (x1)) IF
gray cables item through item as shown in Figure 3. (i.e., one end is
removed in “Step 9. Remove Some Low Frequency Extension (LFE) Cables
(8120-5014 (x1), 8120-5021 (x1), N5240-60097 (x1), and N5240-60098)
From the IF Multiplexer (IF MUX) Board” on page 22.)
Save: 8120-5014 (x2) and 8120 (x1) for reuse.
Discard: 8120-5021.
2. Disconnect the N5242-60078 Source 1 and N5242-60080 LO Source
cables from the LFE board as shown – (items and ). The other end of
the N5242-60078, N5242-60079 does not need to be disconnected from
the Source1 and LO Source boards. Refer to Figure 3 and Figure 47 on
page 73.
Figure 3 Disconnect A71 and A74 bias-T combiners new cables to the A70 LFE board
the other ends of the LFE cables to the LFE Board (8120-5014 (x2),
8120-5017 (x1), 8120-5021 (x1), N5242-60078, and N5242-60080)