Keysight N5225-60143 Installation Notes
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Keysight N5225-60143 Installation Notes

Keysight N5225-60143 Installation Notes

4-port upgrade kit n5224/5/7b and n5244/5/7b models pna direct digital synthesizer (dds)
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Keysight 4-Port
N5224/5/7B and N5244/5/7B Models
PNA Direct Digital Synthesizer (DDS)
Upgrade Kit
This manual provides documentation for the following models:
To Upgrade 4-Port B models to 4-Port B models with Option 4S7
N5224BU-4S7 (for N5224B), N5225BU-4S7 (for N5225B), N5227BU-4S7
(for N5275B), N5244BU-4S7 (For N5244B), N5245BU-4S7 (For N5245B),
and N5247BU-4S7 (For N5247B)
Upgrade Kit Number: N5225-60143
Installation Note

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Summary of Contents for Keysight N5225-60143

  • Page 1 This manual provides documentation for the following models: To Upgrade 4-Port B models to 4-Port B models with Option 4S7 N5224BU-4S7 (for N5224B), N5225BU-4S7 (for N5225B), N5227BU-4S7 (for N5275B), N5244BU-4S7 (For N5244B), N5245BU-4S7 (For N5245B), and N5247BU-4S7 (For N5247B) Upgrade Kit Number: N5225-60143 Installation Note...
  • Page 2 DOCUMENT OR ANY INFORMATION WARNING notice until the reproduce, release, perform, CONTAINED HEREIN. SHOULD indicated conditions are fully display, or disclose commercial KEYSIGHT AND THE USER HAVE A understood and met. computer software or SEPARATE WRITTEN AGREEMENT...
  • Page 3 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...
  • Page 4 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...
  • Page 5 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.
  • Page 6 For information, click on the Chapter 1 bookmark, "Electrostatic Discharge Protection" in the PDF of your instrument’s Service Guide on www.keysight.com 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 7 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...
  • Page 8 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 This section applies to multiple models and upgrade kits.
  • Page 9 Description of this 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 10: Table Of Contents

    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.

  • Page 11: Step 1. Remove The Inner And Outer Covers

    Description of this Upgrade Step 1. Remove the Inner and Outer covers Step 1. Remove the Inner and Outer covers For instructions, click the Chapter 7 bookmark “Removing the Covers” in the PDF Service Guide Step 2. Remove Some Bottom Cables Carefully, turn the instrument so it is bottom side up on a flat surface.

  • Page 12: Step 3. Remove Some Top Cables

    Description of this Upgrade Step 3. Remove Some Top Cables Step 3. 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...

  • Page 13: Step 4. Remove The Left And Right Inner Bracket's #4 Card Guides

    Description of this Upgrade Step 4. Remove the Left and Right Inner Bracket’s #4 Card Guides Step 4. 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.

  • Page 14: Step 5. Install The Center Bracket

    Description of this Upgrade Step 5. Install the Center Bracket Step 5. Install the Center Bracket Refer to Figure 2 for this step. ① 1. Remove (x2) 0515-0372 screws from motherboard/chassis (item Discard as these will not be reused. ➁ 2.

  • Page 15: Step 6. Reinstall Bottom Cables

    Description of this Upgrade Step 6. Reinstall Bottom Cables Step 6. 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.

  • Page 16: Step 7. Reinstall Top Assemblies Reinstall The A5 Through A16

    Description of this Upgrade Step 7. Reinstall Top Assemblies Reinstall the A5 through A16 (Except A15 Direct Digital Synthesis (DDS) Assembly) and Cables Figure 3 Install Bottom End of Top Cable (N5240-20125) Step 7. 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.

  • Page 17: Step 8. Install *New* A15 Direct Digital Synthesizer (Dds) Assembly"

    Description of this Upgrade Step 8. Install *NEW* A15 Direct Digital Synthesizer (DDS) Assembly Step 8. Install *NEW* A15 Direct Digital Synthesizer (DDS) Assembly Refer to Figure Figure 5 on page 18, and Figure 6 on page 19 for this procedure.
  • Page 18 Description of this Upgrade Step 8. Install *NEW* A15 Direct Digital Synthesizer (DDS) Assembly Figure 5 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) Installation Note N5225-90143...

  • Page 19: Step 9. Install *New* And Reused Direct Digital Synthesis (Dds) Assembly Cables

    Description of this Upgrade Step 9. Install *NEW* and Reused Direct Digital Synthesis (DDS) Assembly Cables Step 9. Install *NEW* and Reused Direct Digital Synthesis (DDS) Assembly Cables 1. Connect the following new cables in the order listed. Torque screws to 9 in-lbs.
  • Page 20 Description of this Upgrade Step 9. Install *NEW* and Reused Direct Digital Synthesis (DDS) Assembly Cables 2. Connect the following new and reused cables in the order listed. Refer to Figure 6 on page ① — —W69 (8120-5063) (reuse) Rear-panel REF IN to A15 DD synthesizer assembly J9 ➁...
  • Page 21 Description of this Upgrade Step 9. Install *NEW* and Reused Direct Digital Synthesis (DDS) Assembly Cables ➁ — —W99 (N5227/47B)/W129 (N5244/5B)/W149 (N5224/5B) (N5247-60023) (reuse) A24 IF multiplexer board P603 to A16 SPAM board J2 ③ — —W61 (N5242-60014) (reuse) A24 IF multiplexer board P403 to A16 SPAM board J4 ➃...

  • Page 22: Step 10. Route Gray Cables

    Description of this Upgrade Step 10. Route Gray Cables Step 10. Route Gray Cables — Route gray cables as shown in Figure 9 Figure 10 on page Figure 9 Route Flexible Gray Cables as Indicated (1400-0249, N5242-60012, N5247-60023, N5242-60014, 5247-60024, N5242-60016, and N5240-60115) Installation Note N5225-90143...
  • Page 23 Description of this Upgrade Step 10. Route Gray Cables Figure 10 Route Flexible Gray Cables as Indicated (1400-0249, Noise Receiver Board). Applies to Option 029 Only. These cables were reinstalled in “Step 7. Reinstall Top Assemblies Reinstall the A5 through A16 (Except A15 Direct Digital Synthesis (DDS) Assembly) and Cables”...

  • Page 24: Step 11. Add Back Plate And Cable To Rear Panel (Option 422/423 With And Without 029 Only)

    Description of this Upgrade Step 11. Add Back Plate and Cable to Rear Panel (Option 422/423 With and Without 029 Only) Step 11. Add Back Plate and Cable to Rear Panel (Option 422/423 With and Without 029 Only) For this step refer to Figure 11 on page 24 and to ‘Figure 12 on page...
  • Page 25 Description of this Upgrade Step 11. Add Back Plate and Cable to Rear Panel (Option 422/423 With and Without 029 Only) Figure 12 Install Semirigid Cable (N5240-20127) (1) Connect the other end of the N5240-20127 cable to the back plate. Torque to 21 in-lbs.

  • Page 26: Step 12. Install "Src3 J13" Label On Rear Panel (Option 422/423 With And Without Option 029 Only)

    Description of this Upgrade Step 12. Install "SRC3 J13" Label on Rear Panel (Option 422/423 With and Without Option 029 Only) Step 12. Install "SRC3 J13" Label on Rear Panel (Option 422/423 With and Without Option 029 Only) For this step, refer to Figure 1.

  • Page 27: Step 14. Boot The Instrument

    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 Step 15.

  • Page 28: Step 17. Perform Post-Upgrade Adjustments And Calibration

    Else, all adjustments must be run per the instrument’s Service Guide on www.keysight.com. EEPROM Check (Option 029 Only) This section verifies the A9 noise receiver board has the correct model number information installed.

  • Page 29: Step 18. Prepare The Pna For The User

    Description of this Upgrade Step 18. Prepare the PNA for the User Keysight. Refer to “Getting Assistance from 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 N7840A performance test software or the instrument’s...
  • Page 30 This information is subject to change without notice. © Keysight Technologies 2007-2020 Edition 1, July 2020 www.keysight.com...

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