Keysight N5227BU-660 Installation and operation manual

Installation Note
Keysight - Add 4-Port Capability
Upgrade Kit
For Version 7 Synthesizers
(For Models With Direct Digital Synthesis (Only))
To Upgrade PNA N5227B Option 200 to Option 400 Upgrade Kit
Order Numbers: N5227BU- 660
Keysight Kit Number: N5227-60121

Notices
© Keysight Technologies, Inc.
2009–2020
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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.
Trademark Acknowledgments
Manual Part Number
N5227-90121
Edition
Edition 1, October 2020
Printed in USA/Malaysia
Published by:
Keysight Technologies
1400 Fountaingrove Parkway
Santa Rosa, CA 95403
Warranty
THE MATERIAL CONTAINED IN THIS
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The Software is “commercial
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12.212 and 27.405-3 and
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Supplement (“DFARS”) 227.7202,
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(c), as applicable in any technical
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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: N5227-60121
Installation Note
Description of the Upgrade
This upgrade converts your N5227B Option 200 2-port analyzer to an N5227B
Option 400 4-port analyzer by adding:
— an additional 26.5 GHz source board
— a direct digital synthesizer (DDS) – dual-source assembly
— two additional 40 GHz doublers
— two additional 70 GHz doublers
—anadditionalmixerbrick
— two additional receiver couplers and brackets
— two additional test port couplers
—asplitter
— a 3 dB pad
— a modified front panel
—manyadditionalnewcables
Refer to “Overview of the Installation Procedure” on page 13.
If you had an A model PNA-X with Option 219/419 with Option H85 that
was upgraded to a B model, please refer to Options 217/417. If you had an
A model PNA-X with Option 224/423 with Option H85 that was upgraded
to a B model then refer to Option 222/422.
This repair must be done at a service center or a self-maintainer service
center! Refer to “Getting Assistance from Keysight” on page 4.
This upgrade kit is for upgrading 2-port Option 200 models with (x2) direct
digital synthesis (DDS) to a 4-port Option 400 with DDS only.

4 Installation Note N5227-90121
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 N5227-90121 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 8.
— Enough time - refer to “About Installing the Upgrade” on page 8.
— 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:
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.
1. See “Downloading the Online PNA Service Guide” on page 7.
If you are unfamiliar with the licensing process, refer to the
http://literature.cdn.keysight.com/litweb/pdf/N5242-90024.pdf.
Ensure that you are connected to an external server, before attempting to
download your email and license key file.
—Refer to
http://literature.cdn.keysight.com/litweb/pdf/N5242-90024.pdf.
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.

6 Installation Note N5227-90121
Getting Prepared
-
— From the certificate
— Order number
— Certificate number
— From your instrument
(Instrument information is available in the network analyzer - on the
toolbar, click Help, then click About Network Analyzer.)
— Model number
— Serial number
Using the information just gathered, you must request license key(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 file. Refer to “License Key Redemption” on page 5.
Verify the License Contents
Refer to the license message you received from Keysight:
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 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:
— A26 splitter 5067-4086
— W62 N5247-20111
— W63 N5245-20023
— W64 N5245-20022
(If you have the legacy 5087-7765 HMA26.5, please discard the N5247-20185
semi-rigid cable. 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.

Installation Note N5227-90121 7
Getting Prepared
Figure 1 Comparison of Legacy HMA26.5 (5087-7765) and New HMA26.5
(N5240-60101)
Downloading the Online PNA Service Guide
To view the online Service Guide for your PNA model number, use the following
steps:
1. Go to www.keysight.com.
2. In the Search box, enter the model number of the analyzer (Ex: N5227B)
and click Search.
3. Click Technical Support > Manuals.
4. Click Service Manual.
5. Click the service guide title to download the PDF file.
6. When the PDF of the Service Guide is displayed, scroll through the
Contents section bookmarks to locate the information needed.
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
Description Keysight Part Number
ESD grounding wrist strap 9300-1367
5-ft grounding cord for wrist strap 9300-0980

8 Installation Note N5227-90121
Getting Prepared
-
Tools Required for the Installation
About Installing the Upgrade
2 x 4 ft conductive table mat and 15-ft grounding wire 9300-0797
ESD heel strap (for use with conductive floors) 9300-1308
Description Qty Part Number
T-6 TORX driver - set to 4 in-lbs (0.45 N.m) 1 N/A
T-8 TORX driver - set to 6 in-lbs (0.68 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
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
9 mm nutsetter or open end torque wrench - set to 21 in-lbs (2.38 N.m) 1 N/A
1-in (25.4 mm) torque wrench - set to 72 in-lbs (8.15 N.m) 1 N/A
Use a 5/16-in torque wrench set to 10 in-lbs on all cable connections
except the front and rear panel bulkhead connectors. On these, use a 5/16
inch nutsetter or open end torque wrench set to 21 in-lb.
Products affected N5227B Option 200 with DDS single-source installed
Installation to be performed by Keysight service center or personnel qualified by Keysight
Estimated installation time 5 hours
Estimated adjustment time 0.5 hours
Estimated full instrument calibration time 4.5 hours
Description Keysight Part Number

Installation Note N5227-90121 9
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 N5227-60121
Ref
Desig. Description Qty Part Number
- Installation note (this document) 1 N5227-90121
- Software Entitlement Certificate 1 5964-5145
- China RoHS Addendum for kits 1 9320-6722
A10 26.5 GHz source (2) board 1 5087-7780
A12 40 GHz doubler assembly port 3 2 5087-7346
A13 40 GHz doubler assembly port 4
A15 Direct digital synthesizer (DDS) assembly, (dual-source) – (Replaces A11
single-source DDS assembly.)
1 N5240-60102
A26aSplitter 15067-4086
A28 Mixer brick (2) 1 5087-7337
A30 Receiver coupler, test port 3 2 5087-7744
A31 Receiver coupler, test port 4
A34 Coupler, test port 3 2 5087-7778
A35 Coupler, test port 4
A61 70 GHz doubler assembly, test port 3 25087-7336
A62 70 GHz doubler assembly, test port 4
A69 3-dB attenuator 1 08490-60037
- Dress Panel, lower 4-port 1 N5240-00009
- Pad (secured to each receiver coupler) 2 0403-0179
- Vibration mount (between couplers 1 & 3, and 2 & 4) 2 0460-2725
-
Machine screw, M3.0 x 8, pan head (to attach receiver coupler assembly brackets to
deck; to attach receiver coupler assemblies to brackets underneath and to attach
reference couplers (A34 and A35) front plate assembly to deck)
4 0515-0372
-Machine screw, M3 x 10, pan head (to attach cable bracket mount (N5247-00006) to
test set deck) 2 0515-0374
-Machine screw, M3 x 16, pan head (to attach 2 70 GHz doublers to mounts) 6 0515-0375

10 Installation Note N5227-90121
Items Included in the Upgrade Kit
-
-
Machine screw, M4.0 x 10, pan head (to attach the following boards to the analyzer
chassis: A17 13.5 GHz synthesizer board, A10 26.5 GHz source board, A12 40 GHz
doubler assembly port 3, and A13 40 GHz doubler assembly port 4.)
7 0515-0380
- Machine screw, M2.0 x 6, pan head (to attach 2 receiver couplers to brackets) 8 0515-0658
- Machine screw, M3.0 x 18, pan head (to attach bracket to A10 26.5 GHz source) 1 0515-0666
- Machine screw, M3.0 x 35, pan head (to attach A28 mixer brick to block) 3 0515-1038
-Machine screw, M3.0 x 6, 90-DEG-Flat head (to attach front panel near ports 3 and
4) 2 0515-1946
- Machine screw, M2.5 x 16, pan head (to attach splitter to mixer brick) 2 0515-2007
- Machine screw, M3.0 x 20, flat head (to attach bracket to A10 26.5 GHz source) 2 0515-2078
- Protective cap, black plastic 4 1401-0214
- Microwave Plug SMA Male Straight 50-Ohm 1 1801-0118
- Mounting nuts (for port 3 & 4 test port couplers) 2 5022-1087
- Front panel overlay (label), 4-port 1 N5227-80024
- Test set front plate, 4-port 1 N5247-00009
- Gap pad (between each test coupler and the test set front plate) 4 E4403-20033
- Cable clamp 5 1400-1334
- Cable tie wrap 5 1400-0249
- Bracket, rear, bottom side - for semi rigid cables 1 N5247-00006
- Bracket for receiver coupler assembly 2 N5247-00005
- Bracket for receiver coupler, port 3 1 N5247-00012
- Bracket for receiver coupler, port 4 1 N5247-00011
- Bracket for A10 26.5 GHz source (2) board 1 N5247-20136
W2 RF cable, A11 13.5 GHz (SRC 2) direct digital synthesizer (J6)-SRC 2 RF IN P1 1 N5240-20126
W7 RF cable, A10 source (2) P5 to A12 port 3 40 GHz doubler P1 1 N5245-20034
W8 RF cable, A10 source (2) P3 to A13 port 4 40 GHz doubler P1 1 N5247-20125
W9 RF cable, A10 source (2) P4 to A12 port 3 40 GHz doubler P4 1 N5245-20032
W10 RF cable, A12 port 3 40 GHz doubler P3 to A13 port 4 40 GHz doubler P4 1 N5245-20033
W15 RF cable, A12 port 3 40 GHz doubler P6 to W16 1 N5247-20114
W16 RF cable, A61 port 3 70 GHz doubler to W15 1 N5227-20042
Table 1 Contents of Upgrade Kit N5227-60121
Ref
Desig. Description Qty Part Number

Installation Note N5227-90121 11
Items Included in the Upgrade Kit
W17 RF cable, A12 port 3 40 GHz doubler P2 to W18 1 N5247-20086
W18 RF cable, A61 port 3 70 GHz doubler to W17 1 N5247-20084
W19 RF cable, A13 port 4 40 GHz doubler P6 to W20 1 N5247-20114
W20 RF cable, A62 port 4 70 GHz doubler to W19 1 N5227-20043
W21 RF cable, A13 port 4 40 GHz doubler P2 to W22 1 N5247-20086
W22 RF cable, A62 port 4 70 GHz doubler to W21 1 N5247-20068
W28 RF cable, A61 port 3 70 GHz doubler to A30 port 3 receiver coupler 1 N5247-20045
W29 RF cable, A62 port 4 70 GHz doubler to A31 port 4 receiver coupler 1 N5247-20044
W58 RF cable, 2.4 mm cap for A28 mixer brick 1 N5247-20138
W62aRF cable, A25 HMA26.5 to A26 splitter 1N5247-20111
W63aRF cable, A26 splitter to A27 mixer brick 1N5245-20023
W64aRF cable, A26 splitter to A28 mixer brick 1N5245-20022
W67 RF cable, A12 port 3 40 GHz doubler P5 to W68 1 N5247-20096
W68 RF cable, rear-panel port RF2 OUT (J12) to W67 1 N5247-20088
W72 RF cable, A27 mixer brick (R1) to A24 IF multiplexer (P411) 1 N5242-60021
W73 RF cable, A27 mixer brick (R2) to A24 IF multiplexer (P412) 1 N5242-60022
W75 RF cable, A28 mixer brick (D) to A24 IF multiplexer (P801) 1 N5242-60024
W76 RF cable, A28 mixer brick (R4) to A24 IF multiplexer (P414) 1 N5242-60019
W77 RF cable, A28 mixer brick (R3) to A24 IF multiplexer (P413) 1 N5242-60020
W78 RF cable, A28 mixer brick (C) to A24 IF multiplexer (P601) 1 N5242-60023
W80 RF cable, A24 IF multiplexer board P203 to A16 SPAM board J2 1 N5242-60013
W82 RF cable, A24 IF multiplexer board P603 to A16 SPAM board J5 1 N5242-60015
W93 RF cable, A61 port 3 70 GHz dblr J2 to A12 40 GHz dblr J401 1 N5247-60010
W94 RF cable, A61 port 3 70 GHz dblr J4 to A12 40 GHz dblr J500 1 N5247-60011
W95 RF cable, A62 port 4 70 GHz doubler (J2) to A13 40 GHz doubler (J401) 1 N5247-60012
W96 RF cable, A62 port 4 70 GHz dblr J4 to A13 40 GHz dblr J500 1 N5247-60013
W127 RF cable, A29 port 1 receiver coupler to 3 dB pad on A27 mixer brick (R) 1 N5227-20002
W128 RF cable, A30 port 3 receiver coupler to A28 mixer brick (R3) 1 N5227-20009
W129 RF cable, A31 port 4 receiver coupler to A69 3 dB pad on A28 mixer brick (R4) 1 N5227-20010
Table 1 Contents of Upgrade Kit N5227-60121
Ref
Desig. Description Qty Part Number

12 Installation Note N5227-90121
Items Included in the Upgrade Kit
-
W130 RF cable, A32 port 2 receiver coupler to A27 mixer brick (R2) 1 N5227-20001
W131 RF cable, A29 port 1 receiver coupler to A33 port 1 coupler 1 N5227-20015
W132 RF cable, A30 port 3 receiver coupler to A34 port 3 coupler 1 N5227-20016
W133 RF cable, A31 port 4 receiver coupler to A35 port 4 coupler 1 N5227-20017
W134 RF cable, A32 port 2 receiver coupler to A36 port 2 coupler 1 N5227-20018
W135 RF cable, A33 port 1 coupler to A27 mixer brick (A) 1 N5227-20011
W136 RF cable, A34 port 3 coupler to A28 mixer brick (C) 1 N5227-20014
W137 RF cable, A35 port 4 coupler to A28 mixer brick (D) 1 N5227-20013
W138 RF cable, A36 port 2 coupler to A27 mixer brick (B) 1 N5227-20012
W204aRF cable, A25 HMA26.5 (top) to A28 mixer brick (top) 1N5247-20185
- Ribbon cable, A23 test set motherboard J5 to A61 port 3 70 GHz doubler J1 2N5247-60018
- Ribbon cable, A23 test set motherboard J3 to A62 port 4 70 GHz doubler J1
- Ribbon cable, A23 test set motherboard J552 to A28 mixer brick (2) J52 1 N5247-60015
a. The A26 splitter (5067-4086) and N5247-20111, N5245-20022, N5245-20023, N5247-20110, and N5247-20146
cables are only used with a legacy HMA26.5 p/n: 5087-7765. The N5240-20125 and N5247-20185 cables are used only with
the new N5240-60101 HMA-26.5. Discard any cables that are not used.If you are unclear which HMA26.5 assembly your PNA
has installed, refer to Chapter 7 Repairs and Figure 1 on page 7 and for details on A26 splitter and cabling , refer to your
option-model in Chapter 6 “2-Port Configurations, Serial Number Prefixes <6021” and “4-Port Configurations, Serial Number
Prefixes <6021”.
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 N5227-60121
Ref
Desig. Description Qty Part Number

Installation Note N5227-90121 13
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. Remove the Front Panel Jumper Cables and Cable Guards.”
“Step 5. Remove the Front Panel Assembly.”
“Step 6. Remove the A23 Test Set Motherboard.”
“Step 7. Remove the Testset Stabilizer Bracket from the A24 IF Multiplexer
Board.”
“Step 8. Remove Some Bottom-Side (Test Set) Cables.”
“Step 9. Remove the A60 70 GHz Doubler Assembly From the Test Set Deck.”
“Step 10. Assemble the A61 70 GHz Doubler on the Doubler Mount.”
“Step 11. Reinstall the A60/A61 70 GHz Doubler Assembly.”
“Step 12. Remove the A63 70 GHz Doubler Assembly From the Test Set
Deck.”
“Step 13. Assemble the A62 70 GHz Doubler on the Doubler Mount.”
“Step 14. Reinstall the A62/A63 70 GHz Doubler Assembly.”
“Step 15. Remove the Old A15 (Single-Source) Direct Digital Synthesizer
(DDS) Assembly and Cables.”
“Step 16. Install Bracket to A10 Source Assembly.”
“Step 17. Assemble the A10 26.5 GHz Source 2 Assembly.”
“Step 18. Assemble and Install the A12 40 GHz Doubler Assembly.”
“Step 19. Install the A12 40 GHz Doubler Cables.”
“Step 20. Assemble and Install the A13 40 GHz Doubler Assembly.”
“Step 21. Install the A13 40 GHz Doubler Cables.”
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.

14 Installation Note N5227-90121
Installation Procedure for the Upgrade
-
“Step 22. Install the A10 26.5 GHz Source 2 Assembly and Cables.”
“Step 23. Install the *NEW* A15 (Dual-Source) Direct Digital Synthesizer
(DDS) Assembly and Cables.”
“Step 24. Install the Cable Bracket Mount.”
“Step 25. Remove the A27 Mixer Brick Assembly.”
“Step 26. Assemble the A28 Mixer Brick Assembly.”
“Step 27. Install the A27/A28 Mixer Brick Assemblies.”
“Step 28. Assemble the A30 and A31 Receiver Coupler Assemblies.”
“Step 29. Install the A30 and A31 Receiver Coupler Brackets.”
“Step 30. Install the A30 and A31 Receiver Coupler Assemblies.”
“Step 31. Assemble the A33 - A36 Test Port Coupler Assemblies.”
“Step 32. Remove and Disassemble the 2-Port Test Set Front Plate.”
“Step 33. Install the LED Boards and Test Port Coupler Assemblies to the
4-Port Test Set Front Plate.”
“Step 34. Install the 4-Port Coupler Plate Assembly to the Deck.”
“Step 35. Install Some Bottom-Side (Test Set) Cables.”
“Step 36. Install Cables on IF Multiplexer Board.”
“Step 37. Reinstall the Testset Stabilizer Bracket on the A24 IF Multiplexer
Board.”
“Step 38. Reinstall the A23 Test Set Motherboard.”
“Step 39. Install Cables on the A23 Test Set Motherboard.”
“Step 40. Replace the Front Panel’s Lower Dress Panel.”
“Step 41. Reinstall Front Panel Assembly.”
“Step 42. Install the Overlay.”
“Step 43. Position the Cables and Wires to Prevent Pinching.”
“Step 44. Reinstall the Inner Cover.”
“Step 45. Reinstall the Outer Cover.”
“Step 46. Enable Option 400.”
“Step 47. Perform Post-Upgrade Adjustments and Calibration.”
“Step 48. Prepare the PNA for the User.”

Installation Note N5227-90121 15
Installation Procedure for the Upgrade
Step 1. Obtain a Keyword and Verify the Information
Follow the instructions on the Software Entitlement Certificate supplied to
obtain a license key for installation of this upgrade. Refer to “License Key
Redemption” on page 5.
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.
If the model number, serial number, or option number do not match those on
your license key, 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.
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.
Step 4. Remove the Front Panel Jumper Cables and Cable Guards
1. Pull the two cable guards off of the front panel jumper cables. Save them
for reinstallation later.
2. Remove all front panel jumper cables. Keep for reinstallation later.
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 A23 Test Set Motherboard
For instructions, click the Chapter 7 bookmark “Removing and Replacing the
A23 Test Set Motherboard” 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.

16 Installation Note N5227-90121
Installation Procedure for the Upgrade
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Step 7. Remove the Testset Stabilizer Bracket from the A24 IF
Multiplexer Board
Remove the stabilizer bracket as shown in Figure 2.
Figure 2 Testset Stabilizer Bracket on A24 IF MUX Board

Installation Note N5227-90121 17
Installation Procedure for the Upgrade
Step 8. Remove Some Bottom-Side (Test Set) Cables
1. Place the analyzer bottom-side up on a flat surface.
2. Remove all bottom-side gray flexible cables and silver semi-rigid cables
except those that connect to the rear panel or to the top-side of the PNA.
Do not discard the cables (exception: see steps 3 and 4 below) that are
removed because some will be reused later in the procedure. To see an
image showing the location of cables, click the Chapter 6 bookmark
“Bottom RF Cables, 2-Port, Option 200, S/N Prefixes ≥6021” in the PDF
Service Guide1.
3. Remove and discard the following semi-rigid cables:
— W134 (N5227-20005) A32 port 2 receiver coupler to A36 port 2 coupler
— W131 (N5227-20004) A29 port 1 receiver coupler to A33 port 1 coupler
— W135 (N5227-20007) A33 port 1 coupler to A27 mixer brick (A)
— W127 (N5227-20003) A29 port 1 receiver coupler to A27 mixer brick (R)
— W130 (N5227-20006) A32 port 2 receiver coupler to A27 mixer brick (R)
— W138 (N5227-20008) A36 port 2 coupler to A27 mixer brick (B)
— W62 (N5247-20100) A25 HMA26.5 to A27 mixer brick
4. Remove and save the following semi-rigid cables for reinstallation later:
— W12 (N5227-20041) A60 port 1 70 GHz doubler to W11
— W24 (N5247-20061) A63 port 2 70 GHz doubler to W23
— W26 (N5247-20051) A63 port 2 70 GHz doubler to W25
— W14 (N5247-20072) A60 port 1 70 GHz doubler to W13
5. Remove and discard the following gray flexible cables:
— W72 (N5242-60025) A27 mixer brick (R1) to A24 IF multiplexer (P601)
— W73 (N5242-60026) A27 mixer brick (R2) to A24 IF multiplexer (P801)
— W99 (N5247-60023) A16 SPAM board (J2) to A24 IF multiplexer (P603)
Be careful not to damage the center pins of the semirigid cables. Some
flexing of the cables may be necessary but do not over-bend them.
Leave the gray flexible cables, the wire harnesses, and the ribbon cables
connected where possible. Any that are removed should be labeled for
reconnection later.
Remove and save the cable guards for the front panel jumpers.
When removing a cable, also remove the plastic cable clamp, if present. It
is normal for some of the cable clamp’s adhesive to remain.

18 Installation Note N5227-90121
Installation Procedure for the Upgrade
-
— W100 (N5247-60024) A16 SPAM board (J5) to A24 IF multiplexer (P203)
6. Leave any remaining gray flexible cables, the wire harnesses, and the
ribbon cables connected where possible. Any that are removed should be
labeled for reconnection later.
Step 9. Remove the A60 70 GHz Doubler Assembly From the Test Set
Deck
Remove the 70 GHz doubler 1 assembly from the test set deck. For
instructions, click the Chapter 7 bookmark, “Removing and Replacing the
A60-A63 70 GHz Doublers” in the PDF Service Guide1. Keep all parts for
reinstallation later.
Step 10. Assemble the A61 70 GHz Doubler on the Doubler Mount
1. Follow the instruction in Figure 3 to install the A61 70 GHz doubler 3 on
the doubler mount. New parts are listed in Table 1 on page 9 of this
document.
Figure 3 Installing A61 Doubler 3 on the Doubler Mount (5087-7336, 0515-0375)

Installation Note N5227-90121 19
Installation Procedure for the Upgrade
2. Connect the cables to the A61 70 GHz doubler 3 in the order shown in
Figure 4. The other ends of the cables will be connected later.
Figure 4 A61 70 GHz Doubler Assembly (N5247-60010, N5247-60011, N5247-60018,
1400-0249)
Step 11. Reinstall the A60/A61 70 GHz Doubler Assembly
Reinstall the A60 70 GHz doubler 1 cables, and then reinstall the A60/A61
70 GHz doubler assembly on the test set deck, reusing the existing screws. For
instructions, click the Chapter 7 bookmark, “Removing and Replacing the
A60-A63 70 GHz Doublers” in the PDF Service Guide1.
Step 12. Remove the A63 70 GHz Doubler Assembly From the Test
Set Deck
Remove the A63 70 GHz doubler 2 assembly from the test set deck. For
instructions, click the Chapter 7 bookmark, “Removing and Replacing the
A60-A63 70 GHz Doublers” in the PDF Service Guide1. Keep all parts for
reinstallation later.
1. See “Downloading the Online PNA Service Guide” on page 7.

20 Installation Note N5227-90121
Installation Procedure for the Upgrade
-
Step 13. Assemble the A62 70 GHz Doubler on the Doubler Mount
1. Follow the instruction in Figure 5 to install the A62 70 GHz doubler 4 on
the doubler mount. New parts are listed in Table 1 on page 9 of this
document.
Figure 5 Installing A62 Doubler 4 on the Doubler Mount (5087-7338, 0515-0375)