Anritsu MS27102A Maintenance Manual
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Anritsu MS27102A Maintenance Manual

Anritsu MS27102A Maintenance Manual

Remote spectrum monitor 9 khz to 6 ghz
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Maintenance Manual
Remote Spectrum Monitor
MS27102A, 9 kHz to 6 GHz
Anritsu Company
Part Number: 10580-00420
490 Jarvis Drive
Revision: A
Morgan Hill, CA 95037-2809
Published: October 2015
USA
Copyright 2015 Anritsu Company

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  • Page 1 Maintenance Manual Remote Spectrum Monitor MS27102A, 9 kHz to 6 GHz Anritsu Company Part Number: 10580-00420 490 Jarvis Drive Revision: A Morgan Hill, CA 95037-2809 Published: October 2015 Copyright 2015 Anritsu Company...
  • Page 2 NI is a trademark of the National Instruments Corporation. NOTICE Anritsu Company has prepared this manual for use by Anritsu Company personnel and customers as a guide for the proper installation, operation and maintenance of Anritsu Company equipment and computer programs. The drawings, specifications, and information contained herein are the property of Anritsu Company, and any unauthorized use or disclosure of these drawings, specifications, and information is prohibited;...
  • Page 3 Some or all of the following five symbols may or may not be used on all Anritsu equipment. In addition, there may be other labels attached to products that are not shown in the diagrams in this manual.
  • Page 4 Avoid touching the test port center conductors unless you are properly grounded and have eliminated the possibility of static discharge. Repair of damage that is found to be caused by electrostatic discharge is not covered under warranty. Safety-2 PN: 10580-00420 Rev. A MS27102A MM...

  • Page 5: Table Of Contents

    Test Records for 1-Port MS27102A Verification........
  • Page 6 Contents-2 PN: 10580-00420 Rev. A MS27102A MM...

  • Page 7: Chapter 1-General Information

    Chapter 1 — General Information Introduction This manual provides maintenance instructions for the Anritsu Remote Spectrum Monitor, Model MS27102A. This manual includes: • General information including: • List of recommended equipment to perform maintenance and verification testing (Table 1-1) • Replaceable parts list...

  • Page 8: Recommended Test Equipment

    1-3 Recommended Test Equipment General Information Recommended Test Equipment Table 1-1 lists recommended test equipment for use in testing and maintaining the spectrum monitor. Table 1-1. Recommended Test Equipment for MS27102A Maintenance and Verification Recommended Equipment Critical Specification Manufacturer/Model Synthesized Signal Generator Frequency: 0.1 Hz to 6 GHz,...

  • Page 9: Replaceable Parts

    O-ring. This allows the input power cables to be connected to this part, and then connected to the IP67 chassis. 3-553-557 CAT6 Module, without internal jumper. This is the internal RJ45 connector allowing an external Ethernet cable to connect to the IP67 chassis. MS27102A MM PN: 10580-00420 Rev. A...
  • Page 10 1-4 Replaceable Parts General Information PN: 10580-00420 Rev. A MS27102A MM...

  • Page 11: Chapter 2-Ms27102A Verification

    Chapter 2 — MS27102A Verification Frequency Accuracy Verification The following test is used to verify the frequency accuracy of the MS27102A. This procedure is the same whether the MS27102A is a 1- or 2-port instrument (Option 402). Equipment Required • Anritsu MG3692x Synthesized Signal Source •...

  • Page 12: Amplitude Accuracy Verification, 1-Port Instruments

    6. Connect the other output of the 1870A power splitter to the 34NN50A and 44-10 attenuator. 7. Connect the MS27102A RF input to the output of the power splitter, including the 10 dB attenuator. 8. Set the MS27102A Sweep Mode to No FFT.
  • Page 13 12. Set the MS27102A Input Attenuation to 0 dB. 13. Ensure no power is being inputted to the MS27102A. 14. Set the MS27102A Pre-Amp to On by placing a check mark in the box next to the Pre-Amp setting. 15. Set the MS27102A Center Frequency to 100.5 kHz.

  • Page 14: Displayed Average Noise Level (Danl), 1-Port Instruments

    Displayed Average Noise Level (DANL), 1-Port Instruments The following test is used to verify the Displayed Average Noise Level (DANL) of the 1-port MS27102A (instruments without Option 402). If the MS27102A has two ports (Option 402), follow the DANL verification procedure in Chapter 3.
  • Page 15 Procedure (With Pre Amp On) 1. Connect the 50 ohm Termination to the MS27102A RF In connector. 2. Turn on the MS27102A, Preset the instrument and allow it to warm up for 10 minutes. 3. Set the MS27102A Sweep Mode to FFT.
  • Page 16 2-3 Displayed Average Noise Level (DANL), 1-Port Instruments MS27102A Verification PN: 10580-00420 Rev. A MS27102A MM...

  • Page 17: Chapter 3-Ms27102A Option Verification

    6. Connect the other output of the 1870A power splitter to the 34NN50A and 44-10 attenuator. 7. Connect Port 1 of the MS27102A RF input to output of the power splitter including the 10 dB attenuator. 8. Preset the MS27102A.
  • Page 18 6. Connect the other output of the 1870A power splitter to the 34NN50A and 44-10 attenuator. 7. Connect Port 1 of the MS27102A RF input to output of the power splitter including the 10 dB attenuator. 8. Preset the MS27102A.

  • Page 19: Displayed Average Noise Level (Danl), 2-Port Instruments (Option 402)

    13. Set the MS27102A Input Attenuation to 0 dB. 14. Ensure no power is being inputted to the MS27102A. 15. Set the MS27102A Pre-Amp to On by placing a check mark in the box next to the Pre-Amp setting. 16. Set the MS27102A Center Frequency to 100.5 kHz.
  • Page 20 Procedure (With Pre Amp On) 1. Connect the 50 ohm Termination to Port 1 on the MS27102A. 2. Turn on the MS27102A. Preset the instrument and allow it to warm up for 10 minutes. 3. Set the MS27102A Sweep Mode to FFT.

  • Page 21: Chapter 4-Assembly Replacement

    S20.20-1999 or ANSI/ESD S20.20-2007 is mandatory to avoid ESD damage when handling subassemblies or components found in the instrument. This procedure provides instructions for opening the MS27102A case. With the case opened, the internal assemblies can be removed and replaced, as detailed in the following sections.

  • Page 22: Main Pcb Assembly Replacement

    4-2 Main PCB Assembly Replacement Assembly Replacement Main PCB Assembly Replacement This section describes the removal and replacement of the Main PCB which is attached to the MS27102A Bottom Case. 1. Open the case as described in Section 4-1 “Opening the MS27102A Case”.
  • Page 23 Removing the 9 Screws Connecting PCB Assemblies to the Case 5. After the screws are removed, the entire Main PCB and MUX PCB (if installed) can be removed from the bottom case. 6. Installation is the reverse of removal. MS27102A MM PN: 10580-00420 Rev. A...

  • Page 24: Mux Pcb Replacement (Instruments With Option 402)

    This section describes the removal of the MUX PCB from the Main PCB. 1. Open the case as described in Section 4-1 “Opening the MS27102A Case”. 2. Remove the Main and MUX PCB assembly from the bottom case as described in Section 4-2 “Main PCB...

  • Page 25: Ms27102A N Connector Port Replacement

    Case”. 2. Disconnect the semi-rigid cable from the Port connector being replaced. 3. Using the Anritsu T4461 (M25 Tool) and a 1/4 wrench, rotate the housing of the N to SMA adapter counter clockwise until the N connector is removed..
  • Page 26 4-4 MS27102A N Connector Port Replacement Assembly Replacement PN: 10580-00420 Rev. A MS27102A MM...

  • Page 27: Chapter 5-Troubleshooting

    Off and the default IP address set to 10.0.0.2. To communicate with the MS27102A in this state, connect the MS27102A directly to a PC with an Ethernet crossover cable, then set the PC to have a static IP setting of 10.0.0.1 and see if the MS27102A can be detected by entering the IP address of 10.0.0.2 into a browser window.
  • Page 28 5-3 Level Accuracy Problems Troubleshooting PN: 10580-00420 Rev. A MS27102A MM...

  • Page 29: Appendix A-Test Records

    Appendix A — Test Records This appendix provides test records that can be used to record the performance of the MS27102A. Anritsu recommends that you make a copy of the following test record pages and document the measurements each time a Performance Verification is performed. Continuing to document this process each time it is performed provides a detailed history of instrument performance, which can allow you to observe trends.

  • Page 30: Test Records For 1-Port Ms27102A Verification

    A-1 Test Records for 1-Port MS27102A Verification Test Records Test Records for 1-Port MS27102A Verification MS27102A Firmware Rev: _____________ Operator: ____________________ Date: _____________ Serial Number: _______________ Options: ___________________________________________________ Table A-1. MS27102A Frequency Accuracy Frequency Measured Value Deviation Specification 1 GHz ±...
  • Page 31 0 dB -50± 2.5 dB 5.9 GHz -50 dBm -60 dBm 0 dB -50± 2.5 dB Table A-5. MS27102A DANL with Pre Amp Off Measured Value at Calculated for Start Freq Stop Freq 100 kHz RBW 1 Hz RBW Specification ≤...

  • Page 32: Test Records For 2-Port Ms27102A Verification (Option 402

    A-2 Test Records for 2-Port MS27102A Verification (Option 402) Test Records Test Records for 2-Port MS27102A Verification (Option 402) MS27102A Firmware Rev: _____________ Operator: ____________________ Date: _____________ Serial Number: _______________ Options: ___________________________________________________ Table A-7. MS27102A Frequency Accuracy Frequency Measured Value...
  • Page 33 0 dB -50± 2.5 dB 5.9 GHz -50 dBm -60 dBm 0 dB -50± 3.0 dB Table A-11. MS27102A DANL For Units with Option 402 with Pre Amp Off (Two Ports) Port 1 Port 2 Measured Port 1 Measured Port 2...
  • Page 34 A-2 Test Records for 2-Port MS27102A Verification (Option 402) Test Records PN: 10580-00420 Rev. A MS27102A MM...
  • Page 36 Anritsu Company 490 Jarvis Drive Anritsu utilizes recycled paper and environmentally conscious inks and toner. Morgan Hill, CA 95037-2809 http://www.anritsu.com...

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