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Keysight N5227BU-420 Manual
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Keysight N5227BU-420 Manual

Keysight N5227BU-420 Manual

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Keysight
Low Frequency
Extension (LFE)
For Version 6 &
Version 7
Synthesizers
To Upgrade PNA N5227B
Option 419 to Option 420
Upgrade Kit Order
Number: N5227BU-420
Kit Number: N5227-60118
This is Installation Note is for upgrading the N5227B Microwave Network Analyzers from Option 419 to Option 420.
INSTALLATION GUIDE
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Summary of Contents for Keysight N5227BU-420

  • Page 1 Version 7 Synthesizers To Upgrade PNA N5227B Option 419 to Option 420 Upgrade Kit Order Number: N5227BU-420 Kit Number: N5227-60118 This is Installation Note is for upgrading the N5227B Microwave Network Analyzers from Option 419 to Option 420. INSTALLATION GUIDE...

  • Page 2: Safety Notices

    DOCUMENT OR ANY INFORMATION reproduce, release, perform, CONTAINED HEREIN. SHOULD display, or disclose commercial KEYSIGHT AND THE USER HAVE A computer software or SEPARATE WRITTEN AGREEMENT commercial computer software WITH WARRANTY TERMS COVERING THE MATERIAL IN THIS...
  • Page 5 Keysight Low Frequency Extension (LFE) Upgrade Kit Upgrade Kit Number: N5227-60118 Installation Note Description of the Upgrade This upgrade converts your standard 4-port configurable test set analyzer (N5227B Option 419) to an low frequency extension (LFE) analyzer with bias tees by adding: —...

  • Page 6: 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...

  • Page 7: Getting Prepared

    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 Guide and to “Contacting Keysight”...
  • Page 8 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.
  • Page 9 1. Go to www.keysight.com. 2. In the Search box, enter the model number of the analyzer (e.g., N5225B) and click Search. 3. Click Support > Keysight Product Support. 4. In the Search Support area type your instrument’s model number (e.g., N2225B).

  • Page 10: Tools Required For The Installation

    Protecting Your Workspace from Electrostatic Discharge For information, click on the Chapter 1 bookmark, “Electrostatic Discharge Protection” in the PDF Service Guide 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...
  • Page 11 Getting Prepared About Installing the Upgrade Products affected N5227B Option 419 Installation to be performed by Keysight service center or personnel qualified by Keysight Estimated installation time 5 hours Estimated adjustment time 2.5 hours Estimated full instrument 8 hours calibration time...
  • Page 12 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 This upgrade kit contains cables for Version 6 synthesizers and Version 7 direct digital synthesizer (DDS) assemblies.
  • Page 13 Items Included in the Upgrade Kit Table 1 Contents of Upgrade Kit N5227-60118 Description Part Number Desig. Cable, coax, 205 mm 8120-5017 Cable, ribbon assy, motherboard (MB/IF MUX/LFE/TSMB) N5240-60089 Cable, DC, 2 pin to R/A SMP N5240-60091 W181 Cable, assy–RF, CPLR THRU – Bias T combiner, Port 1 N5247-20167 W182 Cable, assy-RF, Bias T combiner- FP, Port 1...
  • Page 14 Items Included in the Upgrade Kit a. Version 6 synthesizers use these cables. If you have a Version 7 direct digital synthesizer (DDS) assembly installed, these cables may be be discarded. b. Version 7 direct digital synthesizer (DDS) assemblies use these cables. If you have a Version 6 synthesizers installed, these cables may be discarded.

  • Page 15: Overview Of The Installation Procedure

    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. This installation requires the removal of the analyzer’s protective outer covers.
  • Page 16 Installation Procedure for the Upgrade “Step 17. Connect A71 and A74 Bias-Tee Combiner’s New Cables to the A70 Low Frequency Extension (LFE) Board and the Other Ends of the New Cables Connected to the IF Multiplier (IF MUX).” “Step 18. Install the New Bias Tee Combiner’s Semirigid Test Set Cables, the Blue Cables, and Install Cable Clamps Onto the Ferrite Beads.”...
  • Page 17 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, you will not be able to install the option. If this is the case, contact Keysight for assistance before “Contacting Keysight” on beginning the installation of this upgrade.
  • 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 “Contacting boards. Refer to “Contacting Keysight” on page 5. Refer to Keysight” on page 6 Verify that the synthesizer boards are all version H or greater.
  • Page 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 boards are not version H or greater, remove the synthesizer boards for upgrading: IMPORTANT! This step includes disconnecting and laying aside several gray cables.
  • Page 20 Installation Procedure for the Upgrade 2. Remove the following semi-rigid cable, but keep it for re-installation later. To see an image showing the location of the cable, click the Chapter 6 bookmark “Bottom RF Cables, Standard 2-Port Configuration, Option (S/N Prefixes <6021)” or “Bottom RF Cables, 4-Port, Option 419 (S/N Prefixes ≥6021)”...
  • Page 21 Installation Procedure for the Upgrade Step 8. Remove the A24 IF Multiplexer (IF MUX) Board IMPORTANT! This step includes disconnecting and laying aside several gray cables. Ensure that they are labeled. For instructions, click the Chapter 7 bookmark “Removing and Replacing the A24 IF Multiplexer Board”...
  • Page 22 Installation Procedure for the Upgrade Step 9. Assemble and Install the A71–A74 Bias Tee Combiner Assemblies Refer to Figure 3 for this step of the procedure. New parts are listed in Table 1 on page 1. Assemble the Bias T combiners 5087-7403 (x4) to brackets N5247-20149 ...
  • Page 23 Installation Procedure for the Upgrade Refer to Figure 4 for this step of the procedure. New parts are listed in Table 1 on page 2. Install the N5240-60097 (x4) cables onto the bias tee combiners using 5023-3299 clamps (x4) and clamp screws 0515-2141 screws (x4) (items ...
  • Page 24 Installation Procedure for the Upgrade Refer to Figure 5 for this step of the procedure. New parts are listed in Table 1 on page  3. Install the cables N5240-60091 (x4) onto the bias tee combiners (item Figure 5 Install DC cables to the bias tee combiners (N5240-60091 (x4)) Installation Note N5227-90118...
  • Page 25 Installation Procedure for the Upgrade 4. Install the Bias T combiners A71-A74 to using 0515-0372 (x4) screws. Torque screws to 9 in-lbs. Refer to Figure Figure 6 Install the A71-A74 Bias T Combiners to brackets (5087-7403, N5247-20149, and 0515-0372) Installation Note N5227-90118...
  • Page 26 Installation Procedure for the Upgrade Step 10. Connect the A18 Motherboard/IF Multiplexer (IF MUX)/Low Frequency Extension (LFE)/Test Set Motherboard (TSMB) Ribbon Cable (N5240-60089) Refer to Figure 7 for this step of the procedure. New parts are listed in Table 1 on page 1.
  • Page 27 Installation Procedure for the Upgrade Step 11. Reinstall the A24 IF Multiplexer (IF MUX) Board and Connect the Motherboard / IF Multiplexer / Low Frequency Extension (LFE)/ Test set motherboard (MB/IF MUX/LFE/TSMB) ribbon cable (N5240-60089) and the IF MUX Rear Panel Hardware ...
  • Page 28 Installation Procedure for the Upgrade 3. Reinstall the IF MUX board rear panel connectors using the washers and nuts removed in “Step 8. Remove the A24 IF Multiplexer (IF MUX) Board”   on page 21 (items ). Refer to Figure 4.
  • Page 29 Installation Procedure for the Upgrade 5. Connect N5240-60089 Motherboard / IF Multiplexer / Low Frequency Extension (LFE)/ Test set motherboard (MB/IF MUX/LFE/TSMB) ribbon  cable to IF MUX J1 and fold—to relieve tension—as shown (item ). Refer Figure 10 on page 6.
  • Page 30 Installation Procedure for the Upgrade Step 12. Reinstall the Handler, Power and Other I/O Assemblies Reinstall the handler, power, and other I/O assemblies and fold cables out of   the way of the LFE board to be plugged in (items through ).
  • Page 31 Installation Procedure for the Upgrade Step 13. Reinstall the Mixer Brick (MXB) Cables  Reinstall the other end of the mixer brick (MXB) cables (item ) and all of the  IF multiplexer (IF MUX) gray cables (IF MUX board as shown (items through ...
  • Page 32 Installation Procedure for the Upgrade Step 14. Attach Lower Bracket (N5240-00011) to IF Multiplexer (IF MUX) Board Shield Attach N5240-00011 lower bracket to IF MUX board using 0515-0372 screws (x4). Torque to 9 in-lbs. Refer to Figure 13 for this step of the procedure. New parts are listed in Table 1 on page 12.
  • Page 33 Installation Procedure for the Upgrade Step 15. Connect and Route New LFE Cables (8120-5014 (x2), 8120-5017 (x1), and 8120-5021 (x1)) and the Other Ends of the New Cables Connected to the IF Multiplexer (IF MUX) Board  1. Route existing cables as shown to avoid pinching (item ).
  • Page 34 Installation Procedure for the Upgrade 2. Connect and route the 8120-5014 (x2) and 8120-5017 (x3) cables and connect the N5240-60089 MB/IF MUX/ Low Frequency Extension  (LFE)/TSMB ribbon cable as shown on the IF MUX board (items through  ). You will connect the other ends of the IF gray cables later on the process.
  • Page 35 Installation Procedure for the Upgrade Figure 16 Routing the gray cables and MB/IF MUX/ Low Frequency Extension (LFE)/TSMB ribbon cable (N5240-60089) on the IF MUX board (8120-5014 (x2), and 8120-5017 (x3)). Installation Note N5227-90118...
  • Page 36 Installation Procedure for the Upgrade Step 16. Install the A70 Low Frequency Extension (LFE) Board 1. Install the LFE A70 board using the standoffs as a guide. 2. Connect N5240-60089 Motherboard / IF Multiplexer / LFT/ LFE/ Test set motherboard (MB/IF MUX/LFT/LFE/TSMB) ribbon cable to LFE board J1 ...
  • Page 37 Installation Procedure for the Upgrade Step 17. Connect A71 and A74 Bias-Tee Combiner’s New Cables to the A70 Low Frequency Extension (LFE) Board and the Other Ends of the New Cables Connected to the IF Multiplier (IF MUX)  1. Connect the (8120-5014 (x2), 8120-5017 (x3)) IF gray cables item ...
  • Page 38 Installation Procedure for the Upgrade Figure 18 Version 6 Synthesizers: Connect the other ends of the IF gray cables and connect the Source 1, Source 2, and LO Source cables as shown (8120-5014 (x2), 8120-5017 (x3), N5245-60027, N5242-60079, and N5242-60080) Installation Note N5227-90118...
  • Page 39 Installation Procedure for the Upgrade Figure 19 Version 7 Synthesizers: Connect the other ends of the IF gray cables and connect the Source 1, Source 2, and LO Source cables as shown (8120-5014 (x2), 8120-5017 (x3), N5245-60027, N5242-60079, and N5242-60080) Installation Note N5227-90118...
  • Page 40 Installation Procedure for the Upgrade 3. Fold and route Power I/O and Handler I/O cables. Refer to Figure Figure 20 Reinstall and route the ribbon cables (8121-2919 and N5242-60005) 8121-2919 Installation Note N5227-90118...
  • Page 41 Installation Procedure for the Upgrade Step 18. Install the New Bias Tee Combiner’s Semirigid Test Set Cables, the Blue Cables, and Install Cable Clamps Onto the Ferrite Beads 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.
  • Page 42 Installation Procedure for the Upgrade  — —W186 (N5247-20171) A35 test port coupler to A73 port 4 bias-T combiner, Port 4  — —W187 (N5247-20163) A74 port 2 bias-t combiner, Port 2 to front panel CPLR THRU — Refer to Figure 22 on page ...
  • Page 43 Installation Procedure for the Upgrade Figure 21 Install A73 port 1 and A73 port 2 bias-T semirigid cables (N5247-20163 and N5247-20171) Installation Note N5227-90118...
  • Page 44 Installation Procedure for the Upgrade Figure 22 Install A74 port 2 and A73 port 4 bias-T semirigid cables (N5247-20165 and N5247-20169) Installation Note N5227-90118...
  • Page 45 Installation Procedure for the Upgrade Figure 23 Install A71 port 1 bias-T semirigid cables (N5247-20162) Installation Note N5227-90118...
  • Page 46 Installation Procedure for the Upgrade Figure 24 Install A72 port 3 bias-T semirigid cables (N5247-20170) Installation Note N5227-90118...
  • Page 47 Installation Procedure for the Upgrade Figure 25 Install A71 port 1 and A72 port 3 bias-T semirigid cables (N5247-20164 and N5247-20167) Installation Note N5227-90118...
  • Page 48 Installation Procedure for the Upgrade Install New Blue Bias-Tee Combiner Cables and Clamps From the A71–A74 Bias Tees “RF-IN” to the A70 LFE Board “Port1”–”Port4” Connectors, and Cable Clamps to Blue N5240-60091 Ferrite Beaded Cables  2. Install the N5240-60097 (x4) blue cables and route cables (items ...
  • Page 49 Installation Procedure for the Upgrade Install Cable Clamps Onto the Ferrite Beads   3. Install clamps onto N5240-60097 cables (items through ). Refer to Figure 27 through Figure 30 on page 52 Figure 27 Connect N5240-60097 from Port 2 A74 Bias Tee Combiner to “Port2” on A70 LFE Board (N5240-60097 (x1), 1400-1334 (x1), and 1400-1391 (x1)) “Port1”...
  • Page 50 Installation Procedure for the Upgrade Figure 28 Connect N5240-60097 from Port 4 A73 Bias Tee Combiner to BC4 on A70 LFE Board (N5240-60091 (x1), N5240-60097 (x1), 1400-1334 (x1), and 1400-1391 (x1)) “Port4” on LFE. Installation Note N5227-90118...
  • Page 51 Installation Procedure for the Upgrade Figure 29 Connect N5240-60097 from Port 3 A72 Bias Tee Combiner to BC3 on A70 LFE Board (N5240-60091 (x1), N5240-60097 (x1), 1400-1334 (x1), and 1400-1391 (x1)) “Port3” on LFE. Installation Note N5227-90118...
  • Page 52 Installation Procedure for the Upgrade Figure 30 Connect N5240-60097 from Port 1 A71 Bias Tee Combiner to BC1 on A70 LFE Board (N5240-60091 (x1), N5240-60097 (x1), 1400-1334 (x1), and 1400-1391 (x1)) “Port1” on LFE. Step 19. Reinstall the A19 Test Set Motherboard For instructions, click the Chapter 7 bookmark “Removing and Replacing the A19 Test Set Motherboard”...
  • Page 53 Installation Procedure for the Upgrade Install the A71, A72, A73, and A74 bias-Tee Combiner’s Gray Low Frequency Extension (LFE) DC bias Cables To see an image showing the location of these cables, refer to Figure 31 on page 54. See also the Chapter 6 bookmarks “Bottom Ribbon Cables and Wire Harnesses, 4-port, Option 420 (S/N Prefixes <6021)”...
  • Page 54 Installation Procedure for the Upgrade Figure 31 Install N5240-60091 DC combiner cables (x2) to A71 and A72 Bias-Tees J541 J543 J542 J542 Installation Note N5227-90118...
  • Page 55 Installation Procedure for the Upgrade Route Cables As Shown 5. Route bias cables as shown. — Separate cables as much as possible. — It is OK to cross the cables. — Avoid running cables parallel or next to each other. —...
  • Page 56 Installation Procedure for the Upgrade Step 21. Install the Other End of the Bias-Tee Combiner Cables to the Source Synthesizer and LO Synthesizer Board Gray Cables This upgrade kit contains cables for Version 6 synthesizers and Version 7 direct digital synthesizer (DDS) assemblies. Please refer to your instrument’s Service Guide, if you are unclear which assembly you have installed.
  • Page 57 Installation Procedure for the Upgrade Figure 32 Version 6 Synthesizers: Connect the other end of the N5242-60079, N5242-60080, and N5245-60027 cables Installation Note N5227-90118...
  • Page 58 Installation Procedure for the Upgrade Figure 33 Version 7 Synthesizers: Connect the other end of the N5240-60112, N5240-60113, and N5240-60114 cables Installation Note N5227-90118...
  • Page 59 Installation Procedure for the Upgrade Step 22. Remove the Old Lower Front Panel Overlay Refer to Figure 34 for this step of the procedure. Although this figure shows a 4-port PNA, the concept is the same for a 2-port PNA. New parts are listed in Table 1 on page 1.
  • Page 60 Installation Procedure for the Upgrade Step 23. Reinstall Front Panel Assembly For instructions on reinstalling the front panel assembly, click the Chapter 7 bookmark “Removing and Replacing the Front Panel Assembly” in the PDF Service Guide — Be sure to install the two new screws (0515-1946) in the front panel, next to test ports 3 and 4.
  • Page 61 Installation Procedure for the Upgrade Step 25. DC Continuity Test the LFE Board and Test Ports The DC continuity test verifies that the LFE board is installed correctly and does not have any opens or shorts in the DC path. 1.
  • Page 62 2. Right click the on the desired option and click Delete. 3. In the Keysight License Manager dialog box that appears, press or click Yes to confirm delete. 4. A message displays stating that the option removal was successful.
  • Page 63 4. Disconnect the USB flash drive from the PNA. 5. On the analyzer, click or press to open the KLM software from your PNA’s Windows taskbar by pressing Start > More Programs > Keysight License Manager folder > Keysight License Manager and verify the options are correct.
  • Page 64 Installation Procedure for the Upgrade Step 33. 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.
  • Page 65 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.
  • Page 66 Installation Procedure for the Upgrade 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 analyzer’s internal performance test software. To view information on the performance test software, click the Chapter 3 bookmark “Tests and Adjustments”...
  • Page 67 If you do not have the following equipment, do not attempt to the process in the Appendix, because you may damage the board and or your instrument. Stop and return the instrument to Keysight for repair. Refer to “Getting Assistance from Keysight” on page This process requires the following: —...
  • Page 68 1. If you have already removed your synthesizer board, proceed to step Else, to remove your synthesizer board, refer to the Service Guide for your instrument that can be downloaded from www.keysight.com. 2. Remove resistor R71. Refer to Figure 1 on page 3.
  • Page 69 Synthesizer Board Upgrade (N5240-60074 (with Tabs)/N5240-60076 (Without Tabs) Version F/G to Version H) Procedure μ 7. Replace with capacitor 22 F (0161-4279). Refer to Figure 1 on page Ω Figure 1 Remove old resistor and capacitor and replace with resistor 1 k (0699-3947) μ...
  • Page 70 Figure 2 on page c. In the window that opens: Enter the password (i.e., “tsunami”). d. In the Keysight PNA EEPROM Editor window that opens: Scroll down to the FW Revision: box and select the “F” or “G” and replace by typing “H”.
  • Page 71 Synthesizer Board Upgrade (N5240-60074 (with Tabs)/N5240-60076 (Without Tabs) Version F/G to Version H) Procedure Figure 2 EEPROM Header Info Window Appendix - Synthesizer Board A– 5...
  • Page 72 Synthesizer Board Upgrade (N5240-60074 (with Tabs)/N5240-60076 (Without Tabs) Version F/G to Version H) Procedure Figure 3 EEPROM Editor Window A– 6 Appendix - Synthesizer Board...
  • Page 73 Installation Note Xxxxx-xxxxx...
  • Page 74 This information is subject to change without notice. © Keysight Technologies 2009-2022 Edition 1, October 2022 N5227-90118 www.keysight.com...

This manual is also suitable for:

N5227-60118