Keysight N5241BU-205 Installation Note
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Keysight N5241BU-205 Installation Note

Keysight N5241BU-205 Installation Note

Add low frequency extension (lfe) capability upgrade kit, to upgrade pna-x n5241b, n5242b or n5249b option 201 to option 205
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Keysight
Add Low Frequency Extension (LFE) Capability
Upgrade Kit
To Upgrade PNA-X N5241B, N5242B or
N5249B Option 201 to Option 205
Upgrade Kit Order Number: N5241BU- 205, N5242BU- 205, and
N5249BU- 205
Keysight Kit Number: N5242-60125
Installation Note

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Summary of Contents for Keysight N5241BU-205

  • Page 1 Keysight Add Low Frequency Extension (LFE) Capability Upgrade Kit To Upgrade PNA-X N5241B, N5242B or N5249B Option 201 to Option 205 Upgrade Kit Order Number: N5241BU- 205, N5242BU- 205, and N5249BU- 205 Keysight Kit Number: N5242-60125 Installation Note...

  • Page 2: Safety Notices

    PERFORMANCE OF THIS to the public to use, modify, 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...

  • Page 3: Description Of The Upgrade

    Keysight Add LFE Capability Upgrade Kit Upgrade Kit Number: N5242-60125 Installation Note Description of the Upgrade The following may apply to your "B" model PNA: In June 2013, the N5241A/AS and N5242A/AS analyzers underwent significant hardware changes. Some components that have 2.4 mm connectors (bias tees, couplers, and some semi-rigid cables) were replaced with components that have 3.5 mm connectors.

  • Page 4: 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 5: Getting Prepared

    ) board, has P3, P203, — IF MUX P403, P603, P803 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 Verify your Synthesizer board is version H or greater.
  • Page 6 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...

  • Page 7: Protecting Your Workspace From Electrostatic Discharge

    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: N5242B) and click Search.
  • Page 8 Description of the Upgrade Getting Prepared Description Part Number 5/8-in (16 mm) nutsetter or open end torque wrench - set to 21 in-lbs (2.38 N.m) 1-in (25.4 mm) torque wrench - set to 72 in-lbs (8.15 N.m) 1/4-in (6 mm) open end wrench 9 mm nutsetter or open end torque wrench - set to 21 in-lbs) (2.38 N.m) Use a 5/16-in torque wrench set to 10 in-lbs on all cable connections...

  • Page 9: About Installing The Upgrade

    Getting Prepared About Installing the Upgrade Products affected N5241B and N5242B Option 201 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 calibration time...

  • Page 10: Items Included In The Upgrade Kit

    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...
  • Page 11 Description of the Upgrade Items Included in the Upgrade Kit Table 1 Contents of Upgrade Kit N5242-60125 Description Part Number Desig. Nameplate N5242B Option LFE N5242-80035 Nameplate N5249B Option LFE N5249-80004 W161 Cable, assy-RF, Port 1CPLR THRU to A71 port 1 bias T combiner N5222-20119 W167 Cable, assy-RF, Port 2 CPLR THRU to A74 port 2 bias T combiner...

  • Page 12: Overview Of The Installation Procedure

    Description of the Upgrade 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 13 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”...
  • Page 14 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 “Contacting Keysight” on page Verify that the synthesizer boards are all version H or greater.
  • Page 15 Description of the Upgrade Installation Procedure for the Upgrade Figure 1 EERPOM Header Info Window 3. If all of the boards are version H or greater, proceed to “Step 5. Remove the Front Panel Assembly”. Else, you need to remove the synthesizer boards and proceed to step 4. 4.

  • Page 16: Step 5. Remove The Front Panel Assembly

    Description of the Upgrade Installation Procedure for the Upgrade 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 Guide Step 6. Remove Some Bottom (Test Set) Cables Leave the gray flexible cables, the wire harnesses, and the ribbon cables connected where possible.
  • Page 17 3.5 mm parts during a previous repair. Please verify your coupler type before ordering new 3.5 mm couplers. To order new couplers, refer to “Contacting Keysight” on page If your analyzer’s serial number prefix is MY/SG/US5321 and above: Your analyzer was shipped with 3.5 mm components, so it is not necessary to replace the couplers.
  • Page 18 Description of the Upgrade Installation Procedure for the Upgrade Step 9. Remove the A20 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 A20 IF Multiplexer Board”...
  • Page 19 Description of the Upgrade Installation Procedure for the Upgrade Figure 2 Assemble Bias T Combiners to brackets (5087-7403, N5242-00050, N5242-00051, and 0515-1227) Installation Note N5242-90125...
  • Page 20 Description of the Upgrade Installation Procedure for the Upgrade Refer to Figure 3 for this step of the procedure. New parts are listed in Table on page 2. Install the N5240-60097 (x1) cables as shown. Note the orientation of the ➀...
  • Page 21 Description of the Upgrade Installation Procedure for the Upgrade Refer to Figure 4 for this step of the procedure. New parts are listed in Table on page ➀ 6. Install the N5240-60091 (x2) DC cables as shown (item Figure 4 Install DC cables to the bias tees (N5240-60091) Installation Note N5242-90125...
  • Page 22 Description of the Upgrade Installation Procedure for the Upgrade 7. Install the A71-A74 Bias T combiners onto bracket using 0515-0372 (x6) ➀ screws (item ). Refer to Figure ➁ 8. Install the 0515-1227 (x2) screws onto bracket (item ). Refer to Figure Figure 5 Install A71-A74 Bias T Combiners to brackets (0515-0372 and 0515-1227)
  • Page 23 Description of the Upgrade Installation Procedure for the Upgrade Step 12. Connect the A18 Motherboard/IF Multiplexer (IF MUX)/Low Frequency Extension (LFE)/Test Set Motherboard (TSMB) Ribbon Cable (N5240-60089) 1. Remove the N5242-60004 Motherboard/IF MUX/Test set motherboard (MB)/IF MUX/TSMB) ribbon cable from the A18 system motherboard connector J1 and discard this cable.
  • Page 24 Description of the Upgrade Installation Procedure for the Upgrade Step 13. Reinstall the A20 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 Connect the IF MUX Rear Panel Hardware ➀...
  • Page 25 Description of the Upgrade Installation Procedure for the Upgrade 3. Reinstall the IF MUX board rear panel connectors using the washers and nuts removed in “Step 9. Remove the A20 IF Multiplexer (IF MUX) Board” ➀ ➁ on page 18 (items ).
  • Page 26 Description of the Upgrade Installation Procedure for the Upgrade 5. Connect the N5240-60089 Motherboard/IF Multiplexer/Low Frequency Extension/Test set motherboard (i.e., MB/IF MUX/LFE/TSMB) ribbon cable ➀ to IF MUX J1 and fold as shown (item ). Refer to Figure 9 on page 6.
  • Page 27 Description of the Upgrade Installation Procedure for the Upgrade Step 14. Reinstall the handler, Power and Other I/O Assemblies Reinstall the handler, power, and other I/O assemblies and fold cables out of ➀ ➂ the way of the LFE board to be plugged in (items through ).
  • Page 28 Description of the Upgrade Installation Procedure for the Upgrade Step 15. Reinstall the Mixer Brick (MXB) Cables ➀ Reconnect the other end of the mixer brick (MXB) cable (item ) and all of the ➁ IF multiplexer (IF MUX) gray cables (IF MUX board as shown (items through ➄...
  • Page 29 Description of the Upgrade Installation Procedure for the Upgrade Step 16. Attach Lower Bracket (N5240-00011) to 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 Figure 12 Attach lower bracket to IF MUX board (N5240-00011 and 0515-0372) 1.
  • Page 30 Description of the Upgrade Installation Procedure for the Upgrade Step 17. Connect and Route New LFE Cables (8120-5014 (x2), 8120-5017 (x1), and 8120-5021 (x1)) to the on the IF Multiplexer (IF MUX) Board 1. Connect and route the 8120-5014 (x2), 8120-5017 (x1), 8120-5021 (x1), and N5240-60089 cables as shown on the IF multiplexer (IF MUX) board ➀...
  • Page 31 Description of the Upgrade Installation Procedure for the Upgrade 2. Route the reconnected IF mixer brick (MXB) and IF multiplexer (IF MUX) gray cables that were reconnected in “Step 15. Reinstall the Mixer Brick (MXB) Cables” on page 28. Refer to Figure Figure 14 Routing the reconnected IF MXB and IF MUX Gray Cables on the IF MUX...
  • Page 32 Description of the Upgrade Installation Procedure for the Upgrade Figure 15 Routing the new low frequency extension (LFE) Gray Cables on the IF MUX board (8120-5014 (x2), 8120-5017 (x3), and 8120-5021 (x1)) Installation Note N5242-90125...
  • Page 33 Description of the Upgrade Installation Procedure for the Upgrade Step 18. Install A75 Low Frequency Extension (LFE) Board 1. Install the LFE A75 board using the standoffs as a guide. 2. Connect Motherboard / IF Multiplexer / LFT/ LFE/ Test set motherboard ➀...
  • Page 34 Description of the Upgrade Installation Procedure for the Upgrade Step 19. Connect A71 and A74 Bias Tee Combiner New Cables to A75 Low Frequency Extension (LFE) Board and the Other Ends of the New Cables Connected to the IF Multiplier (IF MUX) Board ➀...
  • Page 35 Description of the Upgrade Installation Procedure for the Upgrade 3. Route Power I/O and Handler I/O cables. Refer to Figure Figure 18 Route Power I/O and Handler I/O cables Installation Note N5242-90125...
  • Page 36 Description of the Upgrade Installation Procedure for the Upgrade Step 20. Install the New Bias Tee Combiner’s Semirigid Test Set Cables and the Blue Cables, and Install Cable Clamps on the Ferrite Beads Follow instructions carefully when making cable connections, especially wire harness connections.
  • Page 37 Description of the Upgrade Installation Procedure for the Upgrade Install the New Semirigid Test Set Cables 1. Install the following cables in the order listed. Unless otherwise indicated, use a 5/16-in torque wrench set to 10 in-lbs to tighten all cable connectors.
  • Page 38 Description of the Upgrade Installation Procedure for the Upgrade Figure 20 Install A71 port 1 bias-T combiner semirigid cables (N5222-20119 and N5222-20123) Installation Note N5242-90125...
  • Page 39 Description of the Upgrade Installation Procedure for the Upgrade Install New Blue Bias-Tee Combiner Cables N5240-60097 (x1) and N5240-60098 (x1) Gray Cables From the A71 and A74 Bias Tees "RF-IN" to the A75 LFE Board "Port1" and "Port2" Connectors, and Cable Clamps Onto Ferrite Beads For the following steps, refer to Figure 21 on page...
  • Page 40 Description of the Upgrade Installation Procedure for the Upgrade Figure 21 Connect N5240-60097 and N5240-60098 from A71 and A74 Bias Tee Combiners to A75 LFE Board (N5240-60097 (x1), N5240-60098 (x1), 1400-1391 (x2)) Step 21. Reinstall the A19 Test Set Motherboard 1.
  • Page 41 Description of the Upgrade Installation Procedure for the Upgrade Step 22. Install the A71 and 74 bias-Tee combiner’s Gray Low Frequency Extension (LFE) DC bias Cables and Route Cables This step contains the following: — “Install the A71 and A74 Bias-Tee Gray DC Bias Tee Combiner Low Frequency Extension (LFE) DC Cables to the Rear Panel”...
  • Page 42 Description of the Upgrade Installation Procedure for the Upgrade Route the Bias Cables 4. 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 43 Description of the Upgrade Installation Procedure for the Upgrade Step 23. Install the Other End of the Bias-Tee Combiner Cables to the Source Synthesizer and LO Synthesizer Board Gray Cables Refer to Figure 23. New parts are listed in Table 1 on page 1.
  • Page 44 Description of the Upgrade Installation Procedure for the Upgrade Step 24. Remove the Old Lower Front Panel Overlay and Nameplate Refer to Figure 24 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 45 Description of the Upgrade Installation Procedure for the Upgrade Step 25. Reinstall the 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 —...
  • Page 46 Description of the Upgrade Installation Procedure for the Upgrade Step 26. 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 47 — A keyboard and mouse must be connected to the network analyzer. Option 201 License Removal Procedure 1. To start the Keysight License Manager 6, press Start > Keysight License Manager > Keysight License Manager . A Keysight License Manager dialog box will appear.
  • Page 48 — A keyboard and mouse must be connected to the network analyzer. Option Enable Procedure 1. Locate the email(s) from Keysight which contain license file attachments. These emails are the result of “Step 1. Obtain a Keyword and Verify the Information”...
  • Page 49 Description of the Upgrade Installation Procedure for the Upgrade Figure 25 Editing a Keysight License File Using a Text Editor. Note: This figure may not contain your specific features and is an example only. In this example N5242B-422 is the incorrect feature. N5242B-423 is the correct feature.
  • Page 50 Keysight” on page 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. Step 34. Perform Post-Upgrade Adjustments and Calibration Adjustments The following adjustments must be made due to the hardware changes of the analyzer.
  • Page 51 PDF Service Guide If you experience difficulty with the basic functioning of the analyzer, contact Keysight. Refer to “Contacting Keysight” on page 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.
  • Page 52 Description of the Upgrade Installation Procedure for the Upgrade Installation Note N5242-90125...
  • Page 53 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 54 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 55 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 56 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 57 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...
  • Page 58 Synthesizer Board Upgrade (N5240-60074 (with Tabs)/N5240-60076 (Without Tabs) Version F/G to Version H) Procedure Figure 3 EEPROM Editor Window Appendix - Synthesizer Board...
  • Page 60 This information is subject to change without notice. © Keysight Technologies 2009-2020 Edition 1, February 2020 www.keysight.com...

This manual is also suitable for:

N5249bu-205N5242bu-205

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