Keysight 4-Port N5224/5/7B and N5244/5/7B Models PNA Direct Digital Synthesizer (DDS) For Version 7 Dual-Source Synthesizer Upgrade Kit
←
→
Page content transcription
If your browser does not render page correctly, please read the page content below
Keysight 4-Port
N5224/5/7B and N5244/5/7B Models
PNA Direct Digital Synthesizer (DDS)
For Version 7 Dual-Source Synthesizer
Upgrade Kit
This manual provides documentation for the following models:
To Upgrade 4-Port B models to 4-Port B models with DDS
N5224BU-4S7 (for N5224B), N5225BU-4S7 (for N5225B), N5227BU-4S7
(for N5227B), N5244BU-4S7 (For N5244B), N5245BU-4S7 (For N5245B),
and N5247BU-4S7 (For N5247B)
Upgrade Kit Number: N5225-60143
Installation Note
Notices WITH WARRANTY TERMS
COVERING THE MATERIAL IN THIS
commercial computer software
documentation. No additional
DOCUMENT THAT CONFLICT WITH government requirements
© Keysight Technologies, Inc. THESE TERMS, THE WARRANTY
2007-2021 beyond those set forth in the
TERMS IN THE SEPARATE
EULA shall apply, except to the
No part of this manual may be AGREEMENT WILL CONTROL.
extent that those terms, rights, or
reproduced in any form or by any
means (including electronic storage
Technology Licenses licenses are explicitly required
from all providers of commercial
and retrieval or translation into a The hardware and/or software
foreign language) without prior computer software pursuant to
described in this document are
agreement and written consent from the FAR and the DFARS and are
furnished under a license and may be
Keysight Technologies, Inc. as set forth specifically in writing
used or copied only in accordance
governed by United States and with the terms of such license. elsewhere in the EULA. Keysight
international copyright laws. shall be under no obligation to
U.S. Government Rights update, revise or otherwise
Trademark Acknowledgments modify the Software. With
The Software is “commercial
respect to any technical data as
computer software,” as defined
defined by FAR 2.101, pursuant
Manual Part Number by Federal Acquisition Regulation
to FAR 12.211 and 27.404.2 and
(“FAR”) 2.101. Pursuant to FAR
DFARS 227.7102, the U.S.
N5225-90143 12.212 and 27.405-3 and
government acquires no greater
Department of Defense FAR
Edition Supplement (“DFARS”) 227.7202,
than Limited Rights as defined in
FAR 27.401 or DFAR 227.7103-5
Edition 1, January 2021 the U.S. government acquires
(c), as applicable in any technical
commercial computer software
data.
Supersedes: December 2020 under the same terms by which
Printed in USA/Malaysia
the software is customarily Safety Notices
provided to the public.
Published by: Accordingly, Keysight provides
Keysight Technologies the Software to U.S. government
1400 Fountaingrove Parkway customers under its standard
Santa Rosa, CA 95403 commercial license, which is
embodied in its End User License A CAUTION notice denotes a
Warranty Agreement (EULA), a copy of hazard. It calls attention to an
THE MATERIAL CONTAINED IN THIS which can be found at operating procedure, practice, or
DOCUMENT IS PROVIDED “AS IS,” http://www.keysight.com/find/sweula the like that, if not correctly
AND IS SUBJECT TO BEING The license set forth in the EULA performed or adhered to, could
CHANGED, WITHOUT NOTICE, IN represents the exclusive authority result in damage to the product
FUTURE EDITIONS. FURTHER, TO by which the U.S. government or loss of important data. Do not
THE MAXIMUM EXTENT PERMITTED may use, modify, distribute, or proceed beyond a CAUTION
BY APPLICABLE LAW, KEYSIGHT disclose the Software. The EULA
DISCLAIMS ALL WARRANTIES,
notice until the indicated
and the license set forth therein, conditions are fully understood
EITHER EXPRESS OR IMPLIED WITH
does not require or permit, and met.
REGARD TO THIS MANUAL AND
ANY INFORMATION CONTAINED among other things, that
HEREIN, INCLUDING BUT NOT Keysight: (1) Furnish technical
LIMITED TO THE IMPLIED information related to
WARRANTIES OF commercial computer software
MERCHANTABILITY AND FITNESS or commercial computer
A WARNING notice denotes a
FOR A PARTICULAR PURPOSE. software documentation that is
KEYSIGHT SHALL NOT BE LIABLE
hazard. It calls attention to an
not customarily provided to the
FOR ERRORS OR FOR INCIDENTAL operating procedure, practice, or
public; or (2) Relinquish to, or
OR CONSEQUENTIAL DAMAGES IN the like that, if not correctly
otherwise provide, the
CONNECTION WITH THE performed or adhered to, could
government rights in excess of
FURNISHING, USE, OR result in personal injury or death.
these rights customarily provided
PERFORMANCE OF THIS Do not proceed beyond a
DOCUMENT OR ANY INFORMATION to the public to use, modify,
WARNING notice until the
CONTAINED HEREIN. SHOULD reproduce, release, perform,
indicated conditions are fully
KEYSIGHT AND THE USER HAVE A display, or disclose commercial
understood and met.
SEPARATE WRITTEN AGREEMENT computer software or
Keysight Add Direct Digital Synthesizer (DDS) 4-Port Upgrade Kit
Upgrade Kit Numbers: N5225-60143
Installation Note
Description of this Upgrade
This upgrade adds direct digital synthesis capability to your microwave
network analyzer. This is done by removing the existing frequency reference,
13.5 GHz synthesizer boards (x3), and installing a new direct digital synthesizer
assembly.
Refer to “Overview of the Installation Procedure” on page 10.
This upgrade adds the following items to your N5224/5/7B or N5244/5/7B
network analyzer:
— direct digital synthesizer (DDS) assembly
— new left outer and inner panels
— new cables
This repair must be done at a service center or a self-maintainer service
center! Refer to “Getting Assistance from Keysight” on page 4.
3
- Description of this Upgrade
Getting Assistance from Keysight
Getting Assistance from Keysight
By internet or phone, get assistance with all your test and measurement needs.
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.
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.
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.
4 Installation Note N5225-90143
Description of this Upgrade
Getting Prepared
Getting Prepared
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.
To successfully install this upgrade kit, you will need the following:
— A PDF copy or a paper copy of the PNA Service Guide - refer to
“Downloading the Online PNA Service Guide” on page 5 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 7.
— Enough time - refer to “About Installing the Upgrade” on page 7.
— 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.
Downloading the Online PNA Service Guide
To view the 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: N5247B)
and click Search.
3. Click Services & Support > Document Library > Manuals or under Refine
Your Results:
4. Click Manuals > 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.
1. See “Downloading the Online PNA Service Guide” on page 5.
Installation Note N5225-90143 5
- Description of this Upgrade
Getting Prepared
Protecting Your Workspace from Electrostatic Discharge
For information, click on the Chapter 1 bookmark, "Electrostatic Discharge
Protection" in the PDF of your instrument’s Service Guide on
www.keysight.com1.
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
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. See “Downloading the Online PNA Service Guide” on page 5.
6 Installation Note N5225-90143
Description of this Upgrade
Tools Required for the Installation
Tools Required for the Installation
Description Qty
T-10 TORX driver - set to 9 in-lbs (1.02 N.m) 1
T-20 TORX driver - set to 21 in-lbs (2.38 N.m) 1
5/16-in (8 mm) nutsetter or open end torque wrench - set to 10 in-lbs (1.13 N.m) 1
5/16-in (8 mm) nutsetter or open end torque wrench - set to 21 in-lbs (2.38 N.m) 1
T-6 TORX driver - set to 6 in-lbs (0.68 N.m) 1
5/8-in (16 mm) nutsetter or open end torque wrench - set to 21 in-lbs (2.38 N.m) 1
Needle nose pliers 1
Flat head screwdriver 1
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
9 mm nutsetter or open end torque wrench set to 21 in-lb.
About Installing the Upgrade
Products affected All N5224/5/7B, N5244/5/7B 4-port microwave network
analyzers
Installation to be performed by Keysight service center, personnel qualified by Keysight, or
customer
Estimated installation time 3 hours
Estimated adjustment time 3 hours
Estimated full instrument calibration time 4.5 hours
Installation Note N5225-90143 7
- Description of this Upgrade
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 “Description of this
Upgrade” on page 3.
This section applies to multiple models and upgrade kits. Please refer to
the model and upgrade kit for your instrument’s upgrade.
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 N5225-60143 Option 4S7 (DDS)
Ref Qty
Description Part Number
Desg.
- Installation Note (this document) 1 N5225-90143
- China RoHS Addendum 1 9320-6722
A15 Direct digital synthesizer (DDS) assembly (Assembly contains four synthesizers) 1 N5240-60102
A55 Solid State Drive Assembly for 2.2 GHz CPU and Win10 in N52xxB 1 N5242-60135
Screw-Machine W/Crest-Cup-Con-Washer Pan-HD Torx-T10 M3X0.510mm-LG 4 0515-0374
- SST-300 Passivated – (x2 bracket-center, stabilizer (all options), x2 short and rear
panel bracket)
Screw-Machine W/Crest-Cup-Con-Washer Pan-HD Torx-T10 M3X0.5 8mm-LG 4 0515-0380
-
SST-300 Passivated – (x2 secure DDS to chassis)
- Microwave Plug SMA Male Straight 50-Ohm 1 1250-4261
W1 Cable assy-RF, A15 13.5 GHz (SRC 1) direct digital synthesizer (J4)-SRC 1 RF IN 1 N5240-20124
W51/ Cable assy -RF, A15 13.5 GHz (LO) direct digital synthesizer (J5)-HMA RF IN N5240-20125
1
W61
W2 Cable assy -RF, A15 13.5 GHz (SRC 2) direct digital synthesizer (J6)-SRC 2 RF IN 1 N5240-20126
W201 Cable assy –RF, A15 DD synthesizer (J7) to rear panel (J13) – (Option 422/423 only) 1 N5240-20127
- Bracket, rear plate (Option 422/423 only) 1 N5240-00015
- Bracket-center, stabilizer, long 1 N5240-20136
W200 Cable assy, RF CA, SYNTH J11-SPAM J3 1 N5240-60115
W208 A70/A75 LFE board to A15 DD Synth Source 1 J12 to A70 LFE J20 1 N5240-60112
W209 A70/A75 LFE board to A15 DD Synth Source 2 J14 to A70 LFE J21 1 N5240-60114
W210 A70/A75 LFE board to A15 DD Synth LO J13 to A70 LFE J18 1 N5240-60113
8 Installation Note N5225-90143
Description of this Upgrade
Installation Procedure for the Upgrade
Table 1 Contents of Upgrade Kit N5225-60143 Option 4S7 (DDS)
Ref Qty
Description Part Number
Desg.
- Label, SRC3 J13 – Rear panel – (Option 422/423 Only) 1 N5240-80042
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.
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.
Installation Note N5225-90143 9
- Description of this Upgrade
Overview of the Installation Procedure
Overview of the Installation Procedure
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.
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.
All instruments:
“Step 1. Verify PNA and Erase Flash” on page 11
“Step 2. Remove the Inner and Outer covers” on page 13
“Step 3. Remove Some Cables (All Models) and Some Bottom Assemblies
(Options 405, 420, and 425 Only)” on page 13
“Step 4. Remove Some Top Cables” on page 17
“Step 5. Remove the Left and Right Inner Bracket’s #4 Card Guides” on
page 19
“Step 6. Install the Center Bracket” on page 20
“Step 7. Reinstall Bottom Cables” on page 21
“Step 8. Reinstall Top Assemblies Reinstall the A5 through A16 (Except A15
Direct Digital Synthesis (DDS) Assembly) and Cables” on page 22
“Step 9. Install *NEW* A15 Direct Digital Synthesizer (DDS) Assembly” on
page 23
“Step 10. Install *NEW* and Reused Direct Digital Synthesis (DDS) Assembly
Cables” on page 25
“Step 11. Route Gray Cables” on page 30
“Step 12. Add Back Plate and Cable to Rear Panel (Option 422/423 With and
Without 029 Only)” on page 32
“Step 13. Install "SRC3 J13" Label on Rear Panel (Option 422/423 With and
Without Option 029 Only)” on page 34
“Step 14. Remove and Replace the A55 Solid State Drive (SSD)” on page 34
“Step 15. Boot the Instrument” on page 35
“Step 16. Reinstall the Inner and Outer Covers” on page 35
“Step 17. Verify the PNA Analyzer Program is Running with the Correct
Options” on page 35
“Step 18. Perform Post-Upgrade Adjustments and Calibration” on page 36
10 Installation Note N5225-90143Description of this Upgrade
Step 1. Verify PNA and Erase Flash
“Step 19. Prepare the PNA for the User” on page 38
Step 1. Verify PNA and Erase Flash
This section verifies the PNA boots normally and if OK, deletes the flash in
preparation for installing and calibrating the new synthesizer assembly. Refer
to Figure 1 on page 12.
1. Turn on your PNA.
2. Verify it boots up without errors.
If there are errors, refer to your instrument’s Chapter 4 "Troubleshooting"
in the PDF Service Guide1.
3. If your PNA boots up normally.
4. Open the SCPI Parser Console: System > System Setup… > Remote
Interface… > then click Show SCPI Parser Console
1. See “Downloading the Online PNA Service Guide” on page 5.
Installation Note N5225-90143 11- Description of this Upgrade
Step 1. Verify PNA and Erase Flash
Figure 1 Open SCPI Parser Console
12 Installation Note N5225-90143Description of this Upgrade
Step 2. Remove the Inner and Outer covers
5. In the SCPI parser window: Enter the following command to erase the
flash ROM:
DIAGnostic:FLASH:ERASe
For assistance with sending SCPI commands, refer to the PNA Help file on
www.keysight.com.
6. Enter the following query to verify the flash was erased:
DIAGnostic:FLASH:CATalog?
7. If the does not return any data, then power down the PNA and continue to
the next step.
8. If the DIAG:FLASH:CAT? returns any data, repeat steps 5 and 6.
9. If you repeat steps 5 and 6. and still have data being returned, then refer to
“Contacting Keysight” on page 4.
Step 2. Remove the Inner and Outer covers
For instructions, click the Chapter 7 bookmark “Removing the Covers” in the
PDF Service Guide1.
Step 3. Remove Some Cables (All Models) and Some Bottom
Assemblies (Options 405, 420, and 425 Only)
Carefully, turn the instrument so it is bottom side up on a flat surface.
This section contains two sub-steps. Choose the ones that are applicable for
your model’s options:
— “Step 2a. Remove Some Cables (All Models)” on page 14
— “Step 2b. Remove/Reinstall Some Bottom Assemblies and Old/New
Cables (LFE Models, With Options 405, 420, and 425)” on page 14
Be careful not to damage the center pins of the semi-rigid 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.
1. See “Downloading the Online PNA Service Guide” on page 5.
Installation Note N5225-90143 13- Description of this Upgrade
Step 3. Remove Some Cables (All Models) and Some Bottom Assemblies (Options 405,
420, and 425 Only)
Step 2a. Remove Some Cables (All Models)
1. Place the analyzer bottom-side up on a flat surface.
2. Remove the following cables. To see an image showing the location of
these cables, click the Chapter 6 bookmark “Bottom RF Cables, Standard
4-Port Configuration [for your option]” in the PDF Service Guide1.
3. These cables may be discarded - they will not be reinstalled.
Remove one end of W51 (N5224/5B and N5244/5B)/W61 N5227B and
N5247B. The top-side end is disconnected in the “Step 4. Remove Some
Top Cables” on page 17.
— N5224/5B and N5244/5B: W51 (N5245-20101) A15 13.5 GHz (LO)
synthesizer board J1207 to A25 HMA26.5
— N5227B and N5247B: W61 (N5247-20110) A15 13.5 GHz (LO)
synthesizer board J1207 to A25 HMA26.5
N5224/5B and N5244/5B: This same W51 reference designator is assigned
to the S7 (DDS) upgrade cable N5240-20125.
N5227B and N5247B: This same W61 reference designator is assigned to
the S7 (DDS) upgrade cable N5240-20125.
Step 2b. Remove/Reinstall Some Bottom Assemblies and Old/New
Cables (LFE Models, With Options 405, 420, and 425)
IMPORTANT! If your box does not have of the LFE options installed, Option
405, 420, or 425, skip this sub-step.
This step contains the following sub-steps:
— “A. Remove the A19 Test Set Motherboard” on page 14
— “B. Remove Some LFE Board Flexible Cables” on page 15
— “C. Install Some *New* LFE Cables” on page 16
— “D. Reinstall Test Set Motherboard” on page 16
A. Remove the A19 Test Set Motherboard
Refer to your Service Guide’s "Removing and Replacing the A19 Test Set
Motherboard" section. Set aside all hardware for reuse.
14 Installation Note N5225-90143Description of this Upgrade
Step 3. Remove Some Cables (All Models) and Some Bottom Assemblies (Options 405,
420, and 425 Only)
B. Remove Some LFE Board Flexible Cables
Remove the cables as shown in Figure 1 on page 15. The top-side end of the
cables is removed later. These cables can be discarded.
Figure 1 Remove One End of LFE Bottom-side Cables (N5245-60027, N6242-60079,
N5242-60080)
Installation Note N5225-90143 15- Description of this Upgrade
Step 3. Remove Some Cables (All Models) and Some Bottom Assemblies (Options 405,
420, and 425 Only)
C. Install Some *New* LFE Cables
Reinstall the following LFE cables as shown in Figure 2 on page 16. The
top-side end of the cables is installed later.
Figure 2 Install the bottom-side end of the *NEW* LFE Cables (N5240-60112,
N5240-60113, N5240-60114)
D. Reinstall Test Set Motherboard
Refer to your Service Guide’s "Removing and Replacing the A19 Test Set
Motherboard" section. Reuse the hardware that was set aside.
16 Installation Note N5225-90143Description of this Upgrade
Step 4. Remove Some Top Cables
Step 4. Remove Some Top Cables
Carefully turn the PNA so it is top-side up for this step.
Refer to your Service Guide’s "Removing and Replacing the A4–17 Boards"
section. Set aside all hardware for reuse.
Exceptions (See also, note below):
IMPORTANT! A4 13.5 GHz source 1 synthesizer, A14 frequency reference,
A15 13.5 GHz (LO) synthesizer, and A17 13.5 GHz source 2 synthesizer
boards will not be reused. Set these aside as spares for your other PNAs or
recycle.
The following cables are not reused:
— W1 (N5222-20066) A4 13.5 GHz synthesizer board (source) (1) J1207 to A5
26.5 GHz source (1) board P1
— W2 (N5222-20090) A17 13.5 GHz source (2) synthesizer J1207 to A10
source (2) P1. (On 2-port models, W2 is included only with Opt. 224.)
— W74 (N5242-60027) (N5224/5B and N5244/5B Only) A14 frequency
reference board J4 to A16 SPAM board J3
— W84 (N5242-60027) (N5227B and N5247B Only) A14 frequency reference
board J4 to A16 SPAM board J3
— W75 (N5242-60028) (N5224/5B and N5244/5B Only) A14 frequency
reference board J5 to bottom of A15 13.5 GHz (LO) synthesizer board J5
— W85 (N5242-60028) (N5227B and N5247B Only) A14 frequency reference
board J5 to bottom of A15 13.5 GHz (LO) synthesizer board J5
— W76 (N5242-60029) (N5224/5B and N5244/5B only) A14 frequency
reference board J6 to bottom of A5 13.5 GHz (source 1) synthesizer board
J5
— W86 (N5242-60029) (N5227B and N5247B only) A14 frequency reference
board J6 to bottom of A5 13.5 GHz (source 1) synthesizer board J5
— W77 (N5242-60030) (N5224/5B and N5244/5B only) A14 frequency
reference board J7 to A13 13.5 GHz (source 2) synthesizer board J5. (On
2-port models, W77 is included only with Option 224.)
— W87 (N5242-60030) (N5227B and N5247B only) A14 frequency reference
board J7 to A13 13.5 GHz (source 2) synthesizer board J5. (On 2-port
models, W87 is included only with Option 224.)
Installation Note N5225-90143 17- Description of this Upgrade
Step 4. Remove Some Top Cables
All models with Options 405, 420, 425 only: The following cables will have the
other bottom cable–end was removed previously in “Step 2b.
Remove/Reinstall Some Bottom Assemblies and Old/New Cables (LFE
Models, With Options 405, 420, and 425)” on page 14:
These cables can be discarded.
— W191 (N5245-60027) A4 Source 1 Synth J102 to A70 LFE J20
— W192 (N5242-60079) A17 Source 2 Synth J102 to A70 LFE J21
— W193 (N5242-60080) A15 LO Synth J102 to A70 LFE J18
18 Installation Note N5225-90143Description of this Upgrade
Step 5. Remove the Left and Right Inner Bracket’s #4 Card Guides
Step 5. Remove the Left and Right Inner Bracket’s #4 Card Guides
See also your Service Guide’s "Removing and Replacing the Fans" section. Set
aside all hardware for reuse.
Remove the #4 card guide from the left Panel. Refer to Figure 3 on page 19.
1. Remove x1 card guide (items ➁ and ④) left panel/bracket (item ①) using
needle nose pliers and if necessary a flat head screw-driver. Save the card
guides for reuse.
2. Repeat the process and remove the corresponding card guide number ④
from the right inner panel (not shown, but see item ➂).
3. Left side bracket can be recycled (discarded).
Optional: Remove and retain card guide number ④ as a spare. Else
recycle/discard.
Figure 3 Left Inner Bracket Card Guide Removal (N5242-40002)
Installation Note N5225-90143 19- Description of this Upgrade
Step 6. Install the Center Bracket
Step 6. Install the Center Bracket
Refer to Figure 4 for this step.
1. Remove (x2) 0515-0372 screws from motherboard/chassis (item ①).
Discard as these will not be reused.
2. Install center support bracket N5240-20136 (item ➁).
3. Secure the center support bracket with (x2) 0515-0374 screws (item ➂).
Figure 4 Install Center Bracket (N5242-20136, 0515-0374 (x2))
20 Installation Note N5225-90143Description of this Upgrade
Step 7. Reinstall Bottom Cables
Step 7. Reinstall Bottom Cables
Carefully turn your instrument over so the bottom side is up.
Follow instructions carefully when making cable connections, especially
wire harness connections. Incorrect connections can destroy components,
resulting in additional customer costs.
Be careful not to damage the center pins of the semi-rigid cables. Some
flexing of the cables may be necessary but do not over-bend them.
To avoid damage when connecting and torquing the bias T combiner
semirigid cables, always use a wrench to hold the bias T combiner
connectors.
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
9 mm nutsetter or open end torque wrench set to 21 in-lb.
Install the New Test Set Semi-rigid Cables
To see an image showing the location of these cables, refer to Figure 5 on
page 22. See also the Chapter 6 bookmarks “Bottom RF Cables, 4-Port
Configuration [for your option]” in the PDF Service Guide. New parts are listed
in Table on page 8.
Install the following new cable:
Refer to Figure 5 on page 22.
— ①—W51(N5224/5B & N5244/5B)/W61 (N5227B & N5247B)
(N5240-20125) A15 13.5 GHz (LO) DD synthesizer assembly J5 to A21
HMA26.5 RF IN (The top-side end will be connected in “Step 9. Install
*NEW* A15 Direct Digital Synthesizer (DDS) Assembly” on page 23.)
Installation Note N5225-90143 21- Description of this Upgrade
Step 8. Reinstall Top Assemblies Reinstall the A5 through A16 (Except A15 Direct
Digital Synthesis (DDS) Assembly) and Cables
Figure 5 Install Bottom End of Top Cable (N5240-20125)
Step 8. Reinstall Top Assemblies Reinstall the A5 through A16
(Except A15 Direct Digital Synthesis (DDS) Assembly) and Cables
Carefully turn the PNA so it is top-side up for this step.
Refer to your Service Guide’s "Removing and Replacing the A4–A16 Boards"
section. Reuse hardware set aside in removal procedure.
22 Installation Note N5225-90143Description of this Upgrade
Step 9. Install *NEW* A15 Direct Digital Synthesizer (DDS) Assembly
Step 9. Install *NEW* A15 Direct Digital Synthesizer (DDS) Assembly
Refer to Figure 6, Figure 7 on page 24, and Figure 9 on page 26 for this
procedure.
1. Install DDS assembly N5240-60102 into instrument. Ensure assembly is
fully seated.
2. Secure using 0515-0380 (x2) screws. Torque to 21 in-lbs.
Figure 6 Install A15 DDS (N5240-60102) –
(Noise Receiver Board Shown (Option 029 Only))
Installation Note N5225-90143 23- Description of this Upgrade
Step 9. Install *NEW* A15 Direct Digital Synthesizer (DDS) Assembly
Figure 7 A5 through A16 Boards Installed. Including A15 DDS Assembly
(N5240-60102) – 4-Port is Shown (i.e., A10, A12, A13 Boards and Related
Cables Are Installed in 4-Ports Only; A9 Noise Receiver Board Requires Option
029)
24 Installation Note N5225-90143Description of this Upgrade
Step 10. Install *NEW* and Reused Direct Digital Synthesis (DDS) Assembly Cables
Step 10. Install *NEW* and Reused Direct Digital Synthesis (DDS)
Assembly Cables
1. Connect new LFE cables in the order shown in Figure 8 on page 25. The
bottom-side end of the cable was installed in “C. Install Some *New* LFE
Cables” on page 16.
Figure 8 Install New LFE Assembly Top Cables (N5240-60112, N5240-60113, and
N5240-60114)
2. Connect the following new cables in the order listed. Torque screws to
9 in-lbs.
Refer to Figure 9 on page 26.
— ①—W51(N5224/5B & N5244/5B)/W61 (N5227B & N5247B)
(N5240-20125) A15 13.5 GHz (LO) synthesizer assembly J5 to A21
HMA26.5 RF IN (One end was connected in “Step 7. Reinstall
Bottom Cables” on page 21)
— ➁—W1 (N5240-20124) A15 13.5 GHz (SRC 1) DD synthesizer
assembly J4 to A5 26.5 GHz source (1) board Source 1 RF IN
— ➂—W2 (N5240-20126) A15 13.5 GHz (SRC 2) direct digital
synthesizer (J6)-SRC 2 RF IN
Installation Note N5225-90143 25- Description of this Upgrade
Step 10. Install *NEW* and Reused Direct Digital Synthesis (DDS) Assembly Cables
— ④—W201 (N5240-20127) A15 (SRC3) direct digital synthesizer J13
to SPAM J3 – (Option 422/423 with and without Option 029 Only)
Torque all cables to 10-lbs.
Figure 9 Install New DDS Assembly Top Cables (N5240-20124, N5240-20125, and
N5240-20126 (i.e., N5240-20127 Applies to Option 422/423 Only – See also,
Figure 14))
Torque all
cables to
10 in-lbs.
26 Installation Note N5225-90143Description of this Upgrade
Step 10. Install *NEW* and Reused Direct Digital Synthesis (DDS) Assembly Cables
3. Connect the following new and reused cables in the order listed.
Refer to Figure 9 on page 26.
— ①—W69 (8120-5063) (reuse) Rear-panel REF IN to A15 DD
synthesizer assembly J9
— ➁—W68 (8120-5063) (reuse) A15 DD synthesizer assembly J10 to
rear-panel REF OUT
— ③—W200 (N5240-60115) SRC DD synthesizer assembly J16 to
SPAM J3
Figure 10 Install Following Flexible Cables to DDS Assembly – Top (8120-5063 (x2) and
N5240-60115)
Installation Note N5225-90143 27- Description of this Upgrade
Step 10. Install *NEW* and Reused Direct Digital Synthesis (DDS) Assembly Cables
4. Connect the other end of the following new and reused cables in the order
listed.
Refer to Figure 10-1 on page 29. Some models have different reference
designators for the same semirigid cable part number.
N5224/5 and N5244/5B Models:
— ①—W69 (N5242-60012) (reuse) A24 IF multiplexer board P3 to A16
SPAM board J1
— ➁—W70 (N5242-60013) (reuse) A24 IF multiplexer board P203 to
A16 SPAM board J2
— ③—W71 (N5242-60014) (reuse) A24 IF multiplexer board P403 to
A16 SPAM board J4
— ➃—W72 (N5242-60015) (reuse) A24 IF multiplexer board P603 to
A16 SPAM board J5
— ➄—W73 (N5242-60016) (reuse) A24 IF multiplexer board P803 to
A16 SPAM board J6
— ➅—W200 (N5240-60115) A15 SRC DD Synthesizer assembly J16 to
SPAM J3
N5227B and N5247B
— ①—W79 (N5242-60012) (reuse) A24 IF multiplexer board P3 to A16
SPAM board J1
— ➁—W80 (N5242-60013) (reuse) A24 IF multiplexer board P203 to
A16 SPAM board J2
— ③—W81 (N5242-60014) (reuse) A24 IF multiplexer board P403 to
A16 SPAM board J4
— ➃—W182 (N5242-60015) (reuse) A24 IF multiplexer board P603 to
A16 SPAM board J5
— ➄—W83 (N5242-60016) (reuse) A24 IF multiplexer board P803 to
A16 SPAM board J6
— ➅—W200 (N5240-600115) A15 SRC DD Synthesizer assembly J16
to SPAM J3
28 Installation Note N5225-90143Description of this Upgrade
Step 10. Install *NEW* and Reused Direct Digital Synthesis (DDS) Assembly Cables
Figure 10-1 Install Other End of Bottom Flexible IF Multiplexer and Top Flexible Gray
Cables to SPAM Board (N5242-60012, N5242-60013, N5242-60014,
N5242-60015, N5242-60016, and N5240-60115)
DDS assy
Installation Note N5225-90143 29- Description of this Upgrade
Step 11. Route Gray Cables
Step 11. Route Gray Cables
— Route gray cables as shown in Figure 11 and Figure 12 on page 31.
Figure 11 Route Flexible Gray Cables as Indicated (1400-0249, N5242-60012,
N5242-60013, N5242-60014, N5242-60015, N5242-60016, and
N5240-60115)
30 Installation Note N5225-90143Description of this Upgrade
Step 11. Route Gray Cables
Figure 12 Route Flexible Gray Cables as Indicated (1400-0249, Noise Receiver Board).
Applies to Option 029 Only. These cables were reinstalled in “Step 8. Reinstall
Top Assemblies Reinstall the A5 through A16 (Except A15 Direct Digital
Synthesis (DDS) Assembly) and Cables” on page 22.
Installation Note N5225-90143 31- Description of this Upgrade
Step 12. Add Back Plate and Cable to Rear Panel (Option 422/423 With and Without
029 Only)
Step 12. Add Back Plate and Cable to Rear Panel (Option 422/423
With and Without 029 Only)
For this step refer to Figure 13 on page 32 and to ‘Figure 14 on page 33. See
also, Figure 9 on page 26.
1. Remove the plastic cap that covers the rear panel hole where the back
plate and N5240-20127 cable installs.
2. Connect back plate (N5240-00015) to the PNA’s rear panel (item (1) in
Figure 13), using (x2) 0515-0374 screws. Torque to 9 in-lbs.
3. Connect the one end of the N5240-20127 cable to the inside of the back
plate (item (2) in Figure 13 and item (2) in Figure 14 on page 33). Torque to
21 in-lbs.
4. Connect the other end of the cable (N5240-20127) to A11 DD synthesizer
J7 (item (1) in Figure 14 on page 33).
Figure 13 Install Back Plate to Rear Panel (N5240-00015, (x2) 0515-0374)
(1) Install small plate
N5240-00015 using x2
0515-0374 screws.
Torque to 9 in-lbs.
(2) Connect N5240-20127 cable to
back plate. See also, Figure 14 on
page 33.
Torque hex-nuts to 21 in-lbs.
32 Installation Note N5225-90143Description of this Upgrade
Step 12. Add Back Plate and Cable to Rear Panel (Option 422/423 With and Without
029 Only)
Figure 14 Install Semirigid Cable (N5240-20127). See also, Figure 9 on page 26.
(1)
(2)
(1) Connect the other end of the N5240-20127 cable to the back plate.
Torque to 21 in-lbs.
(2) Connect the N5240-20127 cable to the DD synthesizer J7. Torque to
10 in-lbs.
Installation Note N5225-90143 33- Description of this Upgrade
Step 13. Install "SRC3 J13" Label on Rear Panel (Option 422/423 With and Without
Option 029 Only)
Step 13. Install "SRC3 J13" Label on Rear Panel (Option 422/423
With and Without Option 029 Only)
For this step, refer to Figure 15.
1. Verify that rear panel surface is clean.
2. Install SRC3 J13 label to the rear panel.
3. Add SMA load (1250-4261). Torque to 8 in/lbs.
Figure 15 Install "SRC3 J13" Label on Rear Panel (N5240-80042)
Step 14. Remove and Replace the A55 Solid State Drive (SSD)
Skip this step, if your PNA already has a 256 GB SSD (W1312-60470)
installed and with A.14.00 firmware or greater installed.
For instructions, click the Chapter 7 bookmark “Removing and Replacing the
A55 Solid State Drive (SSD)” in the PDF Service Guide1.
1. See “Downloading the Online PNA Service Guide” on page 5.
34 Installation Note N5225-90143Description of this Upgrade
Step 15. Boot the Instrument
Step 15. Boot the Instrument
1. Power up the instrument and allow it to run for a couple of minutes to
stabilize. This may require several reboots.
2. If the instrument stabilizes without errors, continue to the next step.
Else, if the unit still has initialization errors which look like problems that
cannot be resolved, contact the Keysight Technologies. Refer to “Getting
Assistance from Keysight” on page 4.
Step 16. Reinstall the Inner and Outer Covers
For instructions, click the Chapter 7 bookmark “Removing the Covers” in the
PDF Service Guide1.
Step 17. Verify the PNA Analyzer Program is Running with the
Correct Options
If if the option(s) have not been enabled or if your older options have not
been removed, contact Keysight Technologies. Refer to “Getting
Assistance from Keysight” on page 4.
1. Start the Network Analyzer program.
2. Once the Network Analyzer program is running:
— Press Help > About NA and verify that the correct options are listed
in the PNA application.
3. After successful installation of all upgrades, some features require some
adjustments to ensure the instrument meets its specified performance.
Refer to the following Web site: http://na.support.keysight.com/pna.
1. See “Downloading the Online PNA Service Guide” on page 5.
Installation Note N5225-90143 35- Description of this Upgrade
Step 18. Perform Post-Upgrade Adjustments and Calibration
Step 18. Perform Post-Upgrade Adjustments and Calibration
Adjustments
The following adjustments must be made due to the hardware changes of the
analyzer.
IMPORTANT!
The 10 MHz reference crystal oscillator is the most accurate after running
for three hours. The 10 MHz Frequency Reference Adjustment can be run
after the PNA has warmed up for 90 minutes, and the other adjustments
can be completed in the order presented, but then the 10 MHz Frequency
Reference Adjustment should be repeated after the PNA has been able to
warm up for three hours.
— EE default adjustment (Only, if the synthesizer board is changed)
— synthesizer Bandwidth adjustment (Only, if the synthesizer board is
changed)
— source adjustment
— IF gain adjustment
— receiver adjustment
— receiver characterization
— IF response adjustment (Option S93090xA, S93092A, S93093A, or S93094A
Only)
— Noise Adjustment (Option 029 with S93029A/B Only)
These adjustments are described in the PNA Service Guide and in the PNA
on-line HELP. A list of equipment required to perform these adjustments is also
found in the service guide1.
After the specified adjustments have been performed, the analyzer should
operate and phase lock over its entire frequency range.
Else, all adjustments must be run per the instrument’s Service Guide on
www.keysight.com.
EEPROM Backup
The analyzer uses arrays of correction constants to enable the analyzer to
produce accurate, leveled source signals and receive clean test signals. These
constants are stored in non-volatile EEPROM memory and in flash memory
files.
1. See “Downloading the Online PNA Service Guide” on page 5.
36 Installation Note N5225-90143Description of this Upgrade
Step 18. Perform Post-Upgrade Adjustments and Calibration
The adjustments listed here generate new correction constants. The analyzer
must have a backup of this new data in case any of the data becomes
corrupted.
To store the backup data, perform these steps:
— Navigate to the EEPROM Backup Utility, located at:
— Windows 7 -- C:\Program Files (x86)\Keysight\Network
Analyzer\Service\eebackup.exe
— Windows 10 -- C:\Program Files\Keysight\Network
Analyzer\Service\eebackup.exe
— Run the program.
— Click Backup EEPROM.
— Click Backup TSMB Mem.
— Click Backup Synth Mem. (Applies to Version 7 Synthesizers Only)
— Click Exit when the program has finished.
Figure 16 EEPROM Backup Menu
Operator’s Check
Perform the Operator’s Check to check the basic functionality of the analyzer.
For instructions, refer to the “Tests & Adjustments” chapter of the Service
Guide.
If you experience difficulty with the basic functioning of the analyzer, contact
Keysight. Refer to “Getting Assistance from Keysight” on page 4.
Installation Note N5225-90143 37- Description of this Upgrade
Step 19. Prepare the PNA for the User
Calibration
Although the analyzer functions, its performance relative to its specifications
has not been verified. It is recommended that a full instrument calibration be
performed using the N7840A performance test software or the instrument’s
embedded performance tests. Refer to the analyzer’s service guide for
information on the performance test software.
Step 19. Prepare the PNA for the User
1. If necessary, reinstall front jumper cables.
2. Install the cable guards, pushing them over the front jumper cables until
the cushioning material touches the front panel of the PNA.
3. Install the dust caps on the test ports.
4. If necessary, install labels included in kit as required (e.g., KCC, two
person Caution, and SRC3 J13).
5. Clean the analyzer, as needed, using a damp cloth.
38 Installation Note N5225-90143Installation Note Xxxxx-xxxxx 3
This information is subject to change without notice. © Keysight Technologies 2007-2021 Edition 1, January 2021 www.keysight.com
You can also read
