Anritsu MG3702XA Series Maintenance Manual
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Anritsu MG3702XA Series Maintenance Manual

Rf/microwave signal generators
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Maintenance Manual
Series MG3702XA RF/Microwave
Signal Generators
Fast Switching Microwave Signal Generator
100 µsec Switching Speed
10 MHz to 20 GHz
Anritsu Company
Part Number: 10370-10372
490 Jarvis Drive
Revision: B
Morgan Hill, CA 95037-2809
Published: July 2015
USA
Copyright 2015 Anritsu Company
http://www.anritsu.com

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Summary of Contents for Anritsu MG3702XA Series

  • Page 1 Series MG3702XA RF/Microwave Signal Generators Fast Switching Microwave Signal Generator 100 µsec Switching Speed 10 MHz to 20 GHz Anritsu Company Part Number: 10370-10372 490 Jarvis Drive Revision: B Morgan Hill, CA 95037-2809 Published: July 2015 Copyright 2015 Anritsu Company http://www.anritsu.com...
  • Page 2 LIMITATION OF WARRANTY The foregoing warranty does not apply to Anritsu connectors that have failed due to normal wear. Also, the warranty does not apply to defects resulting from improper or inadequate maintenance, unauthorized modification or misuse, or operation outside of the environmental specifications of the product.
  • Page 3 EULA. d. Termination. Without prejudice to any other rights, Anritsu may terminate this EULA if you fail to comply with the terms and conditions of this EULA. In such event, you must destroy all copies of the SOFTWARE PRODUCT.
  • Page 6 This product and its manuals may require an Export License or approval by the government of the product country of origin for re-export from your country. Before you export this product or any of its manuals, please contact Anritsu Company to confirm whether or not these items are export-controlled.
  • Page 7 Parliament and Council Directive 2002/96/EC (the “WEEE Directive”) in the European Union. For Products placed on the EU market after August 13, 2005, please contact your local Anritsu representative at the end of the product’s useful life to arrange disposal in accordance with your initial contract and the local law.
  • Page 8 TG-8 PN: 10370-10372 Rev. B MG3702xA MM...
  • Page 9 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 10 For Safety Warning Always refer to the operation manual when working near locations at which the alert mark, shown on the left, is attached. If the operation, etc., is performed without heeding the advice in the operation manual, there is a risk of personal injury.

  • Page 11: Table Of Contents

    1-11 Communicating with Anritsu Customer Service ........
  • Page 12 Table of Contents (Continued) Frequency Synthesis ............2-7 A7 PCB .
  • Page 13 Table of Contents (Continued) Adjustments after Subassembly Replacement ........4-2 Calibration File Updates .
  • Page 14 Table of Contents (Continued) Main Power Supply, Auxiliary Power Supply or Regulator PCB ..... . . 6-15 Preliminary............. 6-15 Main Power Supply .

  • Page 15: Chapter 1-General Information

    Interface Bus (GPIB), Ethernet, or USB network ports. A complete instrument description with performance specifications can be found in the MG3702xA technical data sheet, Anritsu part number: 11410-00429, which is also available online. Updated versions of this manual and the technical data sheet may be downloaded from the Anritsu Internet site at: http://www.anritsu.com.

  • Page 16: Online Manual

    Options The options available for the Anritsu MG3702xA series signal generators are described in the technical data sheet (PN: 11410-00429) which is located in Appendix B of the print manual and online at the Anritsu web site (http://www.anritsu.com). For convenience, below is the options list as of July 2011: Table 1-1.

  • Page 17: Determining Existing Options On Your Signal Generator

    You can determine what options are installed by viewing the serial number and options label on the rear of the unit. Options may be retrofitted to instruments (typically) at any time. Contact Anritsu Customer Service (1-800-anritsu) for information on option retrofitting.

  • Page 18: Troubleshooting

    The MG3702xA is tested with Trend Micro antivirus software, but stability is not guaranteed with all antivirus software. Anritsu recommends connecting the instrument only to a secure network. The user assumes the responsibility to provide virus protection because this is not supplied with the instrument.

  • Page 19: Hard Disk Drive Data Backup

    1-10 Preventive Maintenance Hard Disk Drive Data Backup Anritsu recommends that you make a backup copy of your critical data stored on the MG3702xA’s hard disk drive as often as possible. Anritsu reserves the right to reformat or replace the MG3702xA hard disk drive as part of the repair.

  • Page 20: Communicating With Anritsu Customer Service

    All Anritsu instruments are assigned a six or seven digit serial number which appears on the rear panel and is also found in one or more software menus. Specially modified instruments for specific customer requirements are often created and are identified with an “SM”...
  • Page 21 PN9450-00 Lock Control Module PN9342-00 Phase Detector Module PN9530-00 Crystal Oscillator Module Agilent Phase Noise Station: Anritsu K222B Insertable F-F Anritsu 34NKF50 N Male to K Female Adapter Anritsu K241C Power Splitter Anritsu SC3855 3670K50-2 KM-KM flex cable Agilent E5052B Signal Source Analyzer...
  • Page 22 Anritsu PN: K220B Conversion loss: 10dBm (typical) K(m) to K(m) Attenuator Frequency range: DC to 40 GHz Anritsu part number SC7879 K set C, P of attenuators (41KC-3, 41KC-6, Attenuation: 3, 6, 10, and 20 dB 41KC-10, 41KC-20) calibrated (sizes and counts are determined...
  • Page 23 Chapter 1 — General Information 1-12 Test Equipment List Table 1-2. Test Equipment List (4 of 4) Instrument Critical Specification Manufacturer/Model Usage USB memory stick with 1 <1 GB available space Any common source C, P GB of available space (Used to save calibration data).
  • Page 24 1-12 Test Equipment List Chapter 1 — General Information 1-10 PN: 10370-10372 Rev. B MG3702xA MM...

  • Page 25: Chapter 2-Functional Description

    Chapter 2 — Functional Description Introduction This chapter provides brief functional descriptions of the major subsystems that are contained in each model of the MG3702xA. In addition, the operation of the frequency synthesis, automatic level control (ALC), and RF deck subsystems is described so that the instrument operator may better understand the overall operation of the MG3702xA.
  • Page 26 2-2 Major Subsystems Chapter 2 — Functional Description Figure 2-1. Block Diagram of MG3702xA System (1 of 2) PN: 10370-10372 Rev. B MG3702xA MM...
  • Page 27 Chapter 2 — Functional Description 2-2 Major Subsystems Figure 2-1. Block Diagram of MG3702xA System (2 of 2) MG3702xA MM PN: 10370-10372 Rev. B...

  • Page 28: Front Panel Assembly

    2-2 Major Subsystems Chapter 2 — Functional Description Front Panel Assembly This circuit subsystem shown in Figure 2-2 on page 2-12 consists of the front panel, the front panel rotary data knob, the front panel control PCB, and the liquid crystal display (LCD). The subsystem interfaces the front panel LCD, light emitting diodes (LEDs), and keys to the CPU via the dedicated data and address bus.

  • Page 29: Rf Deck

    Chapter 2 — Functional Description 2-2 Major Subsystems The external ALC circuits have provisions for leveling with either an external crystal detector or power meter. The output polarity of the detector or power meter may either be positive or negative. Auxiliary Control (A4 PCB) Precision +10 and –10 volt references are created for the DVM, Ramp Generator, and Horizontal Output circuits, all of which are generated by this PCB.
  • Page 30 2-2 Major Subsystems Chapter 2 — Functional Description Table 2-1. A3 PCB Outputs Output Application A7 and A9 PCBs and optional step attenuator +15VA/-15VA RF components and A6 PCB +15VB/-15VB Optional external frequency multiplication modules +15V_MMW/-15V_MMW RF components +15VC for All +5V power +5VA Not currently used...

  • Page 31: Instrument Inputs/Outputs

    Chapter 2 — Functional Description 2-3 Frequency Synthesis Instrument Inputs/Outputs The A10 rear panel PCBs and the A2 microprocessor PCB contain the interface circuits for the majority of the rear panel input and output connectors as shown in Table 2-2 and in Figure 2-2 on page 2-12.

  • Page 32: A9 Pcb

    2-3 Frequency Synthesis Chapter 2 — Functional Description 1. With no external reference attached, the oscillator frequency is set by the Reference Tuning DAC, the value of which is determined by a calibration procedure and stored in the onboard flash memory.

  • Page 33: Alc/Pulse Modulation

    Chapter 2 — Functional Description 2-4 ALC/Pulse Modulation RF Outputs 10 MHz to 20 GHz Refer to the block diagrams shown in Figure 2-3 on page 2-13 Figure 2-4 on page 2-14 for the following descriptions. The MG3702xA uses VCOs and multipliers capable of generating RF signals in the frequency range of 2.0 GHz to 20 GHz.

  • Page 34: Pulse Generator Operation

    2-5 RF Deck Assemblies Chapter 2 — Functional Description External Leveling In the external leveling mode, an external detector or power meter monitors the RF output level of the MG3702xA instead of the internal level detector. The signal from the external detector goes to the A6 ALC PCB assembly from the rear panel input.

  • Page 35: Rf Signal Flow

    Chapter 2 — Functional Description 2-5 RF Deck Assemblies RF Signal Flow The RF signal from the VCO oscillator and Multiplier is routed to the level control circuits located on the switched filter assembly and then, via PIN switches, to switched low-pass filters. The PIN switch drive current signals are generated on the A6 ALC PCB and routed to the switch control input on the switched filter assembly.
  • Page 36 2-5 RF Deck Assemblies Chapter 2 — Functional Description Controller / CPU / Display Rear Panel Hard Disk Display, Keypad and Drive Rotary Knob Rear Panel Inputs Outputs A10 A 10 MHz Ref In To A7 Ref./Coarse Loop A2 CPU Assembly From A7 Ref./ 10 MHz Ref Out Coarse Loop...
  • Page 37 Chapter 2 — Functional Description 2-5 RF Deck Assemblies Figure 2-3. Block Diagram of Frequency Synthesis Section for MG3702xA MG3702xA MM PN: 10370-10372 Rev. B 2-13...
  • Page 38 2-5 RF Deck Assemblies Chapter 2 — Functional Description Figure 2-4. Block Diagram of A4, A6, and RF Deck Assembly for MG3702xA 2-14 PN: 10370-10372 Rev. B MG3702xA MM...
  • Page 39 Chapter 2 — Functional Description 2-5 RF Deck Assemblies Figure 2-5. Block Diagram of RF deck with Options 002, 004 and 015 for MG3702xA MG3702xA MM PN: 10370-10372 Rev. B 2-15...
  • Page 40 2-5 RF Deck Assemblies Chapter 2 — Functional Description Figure 2-6. Block Diagram of RF deck with Options 002 and 015 for MG3702xA 2-16 PN: 10370-10372 Rev. B MG3702xA MM...
  • Page 41 Chapter 2 — Functional Description 2-5 RF Deck Assemblies Figure 2-7. Block Diagram of RF deck with Options 002 and 004 for MG3702xA MG3702xA MM PN: 10370-10372 Rev. B 2-17...
  • Page 42 2-5 RF Deck Assemblies Chapter 2 — Functional Description 2-18 PN: 10370-10372 Rev. B MG3702xA MM...

  • Page 43: Chapter 3-Performance Verification

    Chapter 3 — Performance Verification Introduction This chapter contains tests that can be used to verify the performance of the series MG3702xA Synthesized Signal Generators to specifications. These tests support all instrument models having any version of firmware and instrument models with the following options: •...

  • Page 44: Test Equipment List

    PN9450-00 Lock Control Module PN9342-00 Phase Detector Module PN9530-00 Crystal Oscillator Module Agilent Phase Noise Station: Anritsu K222B Insertable F-F Anritsu 34NKF50 N Male to K Female Adapter Anritsu K241C Power Splitter Anritsu SC3855 3670K50-2 KM-KM flex cable Agilent E5052B Signal Source Analyzer...
  • Page 45 Conversion loss: 10dBm (typical) Anritsu PN: K220B K(m) to K(m) Attenuator Frequency range: DC to 40 GHz Anritsu part number SC7879 K set C, P of attenuators (41KC-3, 41KC-6, Attenuation: 3, 6, 10, and 20 dB 41KC-10, 41KC-20) calibrated (sizes and counts are determined...

  • Page 46: Measurement Uncertainty

    Critical Specification Manufacturer/Model Usage BNC to SMA adapter Any common source K(m) to K(m) flex cables or K(m) to K(m) flex cables Anritsu SC3855 3670K50-2 K(m) C, P semi-rigid cables to K(m) flex cable Semi-rigid cables Anritsu K120mm-60CM custom semi-rigid cable...

  • Page 47: Internal Time Base Aging Rate Test (Optional)

    Chapter 3 — Performance Verification 3-6 Internal Time Base Aging Rate Test (Optional) Internal Time Base Aging Rate Test (Optional) For the following test, refer to the test record table in Appendix “Section 3-6 Internal Time Base Aging Rate Test (Optional)”.

  • Page 48: Spurious Signals Tests

    3-7 Spurious Signals Tests Chapter 3 — Performance Verification 3. On the keypad, press 2 to ENABLE the external frequency measurement option. (Pressing 3 will DISABLE the option.) 4. Confirm that the external frequency measurement option is enabled and the unit is locked by observing an asterisk (*) in row 1, column 35 of the display.

  • Page 49: Harmonics And Harmonically Related Signals Test

    “MG3702xA Technical Data Sheet” for the maximum specified power levels. For the electronic version, refer to the MG3702xA Technical Data Sheet, PN: 11410-00429 on the Anritsu Internet site, http://www.anritsu.com. 3. Set up the spectrum analyzer as follows: a. Press the AMPLITUDE key. Press REF LVL and enter the current power level setting (L0) of the MG3702xA.

  • Page 50: Non-Harmonic Signals Test

    Set L0 to +10 dBm or to the maximum specified power level, whichever is less. Refer to Appendix “MG3702xA Technical Data Sheet” for the maximum specified power levels. For the electronic version, refer to the MG3702xA Technical Data Sheet, PN: 11410-00429 on the Anritsu Internet site, http://www.anritsu.com. PN: 10370-10372 Rev. B MG3702xA MM...
  • Page 51 “MG3702xA Technical Data Sheet” for the maximum specified power levels. For the electronic version, refer to the MG3702xA Technical Data Sheet, PN: 11410-00429 on the Anritsu Internet site, http://www.anritsu.com. 2. Set up the spectrum analyzer as follows: a. Press the AMPLITUDE key.
  • Page 52 3-7 Spurious Signals Tests Chapter 3 — Performance Verification b. Press REF LVL and enter the current power level setting (L1) of the MG3702xA. c. Press the FREQUENCY key. d. Press Center Freq. e. Enter the current spectrum analyzer center frequency from the test record. f.

  • Page 53: Ssb Phase Noise Test

    “Section 3-8 SSB Phase Noise Test: Agilent Test Equipment”. Required Equipment Table 3-2. Recommended Equipment List Part Number Quantity Description Vendor K222B Insertable F-F Anritsu 34NKF50 N Male to K Female Adapter Anritsu K241C Power Splitter Anritsu SC3855 3670K50-2 KM-KM flex cable Anritsu E5052B...
  • Page 54 3-8 SSB Phase Noise Test Chapter 3 — Performance Verification E5052B Signal Source Analyzer with E5053A Down Converter MG3702xA MG37022A Signal Generator Standby Operate Splitter Figure 3-3. Equipment Setup for Single Sideband Phase Noise Test with E5052B and E5053A Agilent E5052B and E5053A Setup 1.
  • Page 55 Chapter 3 — Performance Verification 3-8 SSB Phase Noise Test If the test frequencies are from 10 MHz to 5 GHz: a. Press Downconverter. This will present a choice between RF Input and Downconverter. b. Select RF input. c. Press E5052B. This selects the direct measurement into the E5052B. d.
  • Page 56 3-8 SSB Phase Noise Test Chapter 3 — Performance Verification Figure 3-4. E5052B Display 11. Press Trace/View. a. Press Spurious. b. Press Power (dBc). Now white spikes may appear on the screen indicating spurs as shown in Figure 3-4. c. Press Spurious List and a new screen will appear. d.
  • Page 57 Chapter 3 — Performance Verification 3-8 SSB Phase Noise Test 13. Close the Spurious List window. 14. Press Trace/View again. a. Press Spurious If this soft key is not visible, touch the down arrow at the bottom right of the screen to locate. b.

  • Page 58: Procedure Using Aeroflex Equipment

    The following test can be used to verify that the MG3702xA meets its single sideband phase noise specifications. For this test, an Anritsu MG3694A or B (with Options 3 and 4) signal generator is required to act as a local oscillator (LO).
  • Page 59 Chapter 3 — Performance Verification 3-8 SSB Phase Noise Test 5. On the PN9000 system, connect the Fc. 100 MHz OUTPUT of the crystal oscillator module to the 2nd LO INPUT of the phase detector module. 6. On the PN9000 system, connect the TUNE VOLTAGE OUTPUT of the lock control module to the Fc. TUNE INPUT of the crystal oscillator module.
  • Page 60 3-8 SSB Phase Noise Test Chapter 3 — Performance Verification PN9000 System Setup 1. Select the Measure/Graph menu on the PN9000: a. Set Log. F = 10 Hz b. Set Log. F = 1 MHz c. Set Level max = –40 dB d.
  • Page 61 Chapter 3 — Performance Verification 3-8 SSB Phase Noise Test 8. Select the Calib/Fcounter menu: a. Select Freq IF and press <Enter>. A frequency close to the difference of the RF and LO frequencies is displayed in the menu item. b.
  • Page 62 3-8 SSB Phase Noise Test Chapter 3 — Performance Verification • 1 kHz • 10 kHz • 100 kHz • 1 MHz 5. Record any power line and fan rotation spurious emissions above the specified limits in the test record. 6.

  • Page 63: Power Level Accuracy And Flatness Tests

    2. Connect the power sensor to the RF Output of the MG3702xA (use a fixed attenuator when measuring power levels above +19 dBm). 3. Connect the special AUX I/O interface cable (Anritsu PN: 806-97) to the MG3702xA rear panel AUX I/O connector. Connect the cable BNC connectors as follows: a.

  • Page 64: Power Level Log Conformity

    3-9 Power Level Accuracy and Flatness Tests Chapter 3 — Performance Verification Power Level Log Conformity For the following test, refer to the test record table in Appendix “Section 3-9 Power Level Accuracy and Flatness Tests”,“Power Level Log Conformity”. The log conformity test verifies the dynamic range and level accuracy of the Automatic Level Control (ALC) loop.
  • Page 65 Chapter 3 — Performance Verification 3-9 Power Level Accuracy and Flatness Tests Attenuation set to 0 dB Figure 3-9. Ensuring 0dB attenuation setting 3. Press Frequency to open the current frequency parameter for editing. 4. Press Edit Frequency and set F0 to the CW frequency indicated in the test record. 5.

  • Page 66: Power Level Accuracy (Models Without Option 002)

    Caution levels above +19 dBm. 3. Connect the special AUX I/O interface cable (Anritsu Part No. 806-97) to the MG3702xA rear panel AUX I/O connector. Connect the cable BNC connectors as follows: a. Connect the cable labeled SEQ SYNC to the power meter rear panel INPUT 1 DIGITAL connector.

  • Page 67: Power Level Accuracy (Models With Option 002)

    Chapter 3 — Performance Verification 3-9 Power Level Accuracy and Flatness Tests a. Preset the instrument by pressing the green PRESET button. After preset, the CW menu is displayed. Test Procedure 1. Set up the MG3702xA as follows: a. Press Frequency to open the current frequency parameter for editing. b.
  • Page 68 4. Using a BNC tee, connect the 10 MHz reference output from the measuring receiver to the MG3702xA and the local oscillator 10 MHz REF IN connectors. Test Setup Using Anritsu T2579 Mixer Box Use the following setup when using a T2579 box. See...
  • Page 69 Chapter 3 — Performance Verification 3-9 Power Level Accuracy and Flatness Tests 10 MHz Reference In 10 MHz 10 MHz ML2530A Calibration Receiver REF IN REF OUT MG37022A Signal Generator MG3694B Synthesizer 10 MHz to 40 GHz Standby Operate MG3692A (LO) MG3702xA (DUT) ML2530A Input...
  • Page 70 3-9 Power Level Accuracy and Flatness Tests Chapter 3 — Performance Verification b. Set F1 to the LO CW frequency indicated in the test record. c. Ensure Set L1 is set to +13 dB When measuring frequencies above 2400 MHz, the measuring receiver, LO, and MG3702xA, should Note be connected to the mixer.

  • Page 71: Power Level Flatness

    1. Calibrate the power meter with the appropriate power sensor. 2. Connect the power sensor to the RF Output of the MG3702xA. 3. Connect the special AUX I/O interface cable (Anritsu Part No. 806-97) to the MG3702xA rear panel AUX I/O connector. Connect the cable BNC connectors as follows: a.
  • Page 72 3-9 Power Level Accuracy and Flatness Tests Chapter 3 — Performance Verification c. Configure the power sensor’s calibration factor source by pressing: Sensor | CalFactor | SOURCE until V/GHZ is displayed. d. Setup the minimum V/GHz range by pressing: Setup| Start F e.

  • Page 73: Maximum Leveled Power

    3. Connect the power sensor to the RF Output of the MG3702xA (use a fixed attenuator when measuring power levels above +19 dBm). 4. Connect the special AUX I/O interface cable (Anritsu PN: 806-97) to the MG3702xA rear panel AUX I/O connector. Connect the cable BNC connectors as follows: MG3702xA MM PN: 10370-10372 Rev.
  • Page 74 3-9 Power Level Accuracy and Flatness Tests Chapter 3 — Performance Verification a. Connect the cable labeled “SEQ SYNC” to the power meter rear panel INPUT 1 DIGITAL connector. b. Connect the cable labeled “HORIZ OUT” to the power meter rear panel INPUT 2 ANALOG connector.
  • Page 75 Chapter 3 — Performance Verification 3-9 Power Level Accuracy and Flatness Tests b. Press Edit F2, enter the upper frequency of the MG3702xA under test using the next frequency range value in the test record. c. Press Dwell time and set to 250ms. d.

  • Page 76: 3-10 Pulse Modulation Tests

    3-10 Pulse Modulation Tests Chapter 3 — Performance Verification 3-10 Pulse Modulation Tests Pulse modulation tests are performed only if Option 26 or 37 is installed. For the following test, refer to the test record table in Appendix “Section 3-10 Pulse Modulation Tests”.

  • Page 77: Pulse Rise Time, Fall Time And Overshoot

    Chapter 3 — Performance Verification 3-10 Pulse Modulation Tests i. Select the left module as the source. j. Select Close to close the open window. k. Turn off channel 1 on the oscilloscope by pressing the 1 key above the module (LED off). Pulse Rise Time, Fall Time and Overshoot The following procedure describes the measurement of rise time, fall time, and overshoot of the MG3702xA's pulse modulated RF output.
  • Page 78 3-10 Pulse Modulation Tests Chapter 3 — Performance Verification e. Set the scale and offset voltages so that the positive peak of the pulse is centered and the amplitude is optimally displayed (typically a scale of 20mV/div and offset of 50 mV). Select Close to close the window.

  • Page 79: Pulse Power Accuracy

    Chapter 3 — Performance Verification 3-10 Pulse Modulation Tests Pulse Power Accuracy The following procedure describes the measurement of the pulse power accuracy of the MG3702xA's pulse modulated RF Output. The accuracy is tested with a 1 µs and a 0.5 µs pulse width. Test Setup 1.

  • Page 80: External Pulse Power Accuracy

    3-10 Pulse Modulation Tests Chapter 3 — Performance Verification b. Select Time Delay and scale so that only the positive peak portion of the pulse fills the display (typically set the scale to 90 ns/div and the delay time to 4.1 µs for a 1 µs pulse or set the scale to 40 µs/div and the delay time to 4.1 µs for a 500 µs pulse).
  • Page 81 Chapter 3 — Performance Verification 3-10 Pulse Modulation Tests 2. Using the 2.4 mm (f) to K (f) adapters, connect a 6 dB fixed attenuator to the oscilloscope's Channel 1 and Trigger inputs. 3. Connect a RF coaxial cable to the 6 dB attenuator at the oscilloscope's Channel 1 input. 4.
  • Page 82 3-10 Pulse Modulation Tests Chapter 3 — Performance Verification g. Connect a fixed attenuator with the proper attenuation value to the MG3702xA RF Output (refer to Table 3-6), then connect the RF coaxial cable from the Channel 1 input of the oscilloscope to the fixed attenuator.

  • Page 83: Pulse On/Off Ratio

    Chapter 3 — Performance Verification 3-10 Pulse Modulation Tests Pulse On/Off Ratio The following procedure lets you measure the pulse on/off ratio of the MG3702xA's pulse modulated RF output. 6 dB EXT REF Agilent 8565EC Input Spectrum Analyzer 10 MHz Attenuator REF Out MG37022A...
  • Page 84 3-10 Pulse Modulation Tests Chapter 3 — Performance Verification c. Press the SPAN key and enter 100 kHz. d. Press the MKR key, then select MARKER DELTA to set the marker reference. 3. On the MG3702xA's External Pulse Status menu, select On/Off to turn the pulse mode on. The signal level may drift slowly after the pulse mode is turned on.

  • Page 85: Chapter 4-Adjustment

    3) or as a result of replacement of subassemblies or RF components. The adjustment procedures in this chapter support operating firmware version 1.7.0 and above. Note Anritsu recommends that you upgrade your instrument operating firmware to the latest available version prior to calibration. Test Equipment List Table 4-1 provides a partial list of the test equipment for these adjustment procedures.

  • Page 86: Adjustments After Subassembly Replacement

    4-4 Adjustments after Subassembly Replacement Chapter 4 — Adjustment Adjustments after Subassembly Replacement Table 4-2 lists the calibrations that should be performed following the replacement of applicable MG3702xA subassemblies or RF components. Table 4-2. Adjustment and Verifications Required after Subassembly Replacement (1 of 3) Subassembly/RF Component Replaced Perform the Following Adjustments and Verifications Front Panel Assembly...
  • Page 87 Chapter 4 — Adjustment 4-4 Adjustments after Subassembly Replacement Table 4-2. Adjustment and Verifications Required after Subassembly Replacement (2 of 3) Subassembly/RF Component Replaced Perform the Following Adjustments and Verifications A12 Switched Filter Section 4-7 “Frequency Reference Adjustment” Section 4-8 “Level Detector Tables and Level Flatness Adjustment” Section 4-9 “Level SWF Band Adjustment”...

  • Page 88: Calibration File Updates

    4-5 Calibration File Updates Chapter 4 — Adjustment Table 4-2. Adjustment and Verifications Required after Subassembly Replacement (3 of 3) Subassembly/RF Component Replaced Perform the Following Adjustments and Verifications Step Attenuator, 20 GHz Section 4-7 “Frequency Reference Adjustment” Section 4-8 “Level Detector Tables and Level Flatness Adjustment” Section 4-9 “Level SWF Band Adjustment”...

  • Page 89: Utility Dvm Adjustment

    Chapter 4 — Adjustment 4-6 Utility DVM Adjustment Table 4-3. Adjustment List (2 of 2) Updated by Manual Calibration or Calibration Adjustments Calibration Files Levels Calibration Station AlcBandwidth.xml Manual Calibration AlcBandwidth.log Manual Calibration Level SWF Band Cal AlcLimiter.xml Manual Calibration AlcLimiter.log Manual Calibration AlcBreakpoint.xml...

  • Page 90: Frequency Reference Adjustment

    4-7 Frequency Reference Adjustment Chapter 4 — Adjustment Frequency Reference Adjustment This adjustment improves the frequency accuracy of the MG3702XA. Required Equipment: • Absolute Time Corp. Model 300, 10 MHz Frequency Reference Equipment Setup Connect the equipment as shown in Figure 4-1.

  • Page 91: Level Detector Tables And Level Flatness Adjustment

    • Level Cal Software, p/n 57877, revision 2.00 or higher • Anritsu ML2438A Power Meter • Anritsu MA2474D Power Sensor • Anritsu 41KC-10 10 dB Attenuator • ML2530A Calibration Receiver • T2579 Mixer Fixture • Mini-Circuits Filter, Model BLP-1.9, Qty 2 •...

  • Page 92: Level Swf Band Adjustment

    4-9 Level SWF Band Adjustment Chapter 4 — Adjustment 4. Enter Tester ID. 5. Choose Run Test. 6. Choose Level Calibration | Verification Wildfire | Next. 7. The software will auto detect the options installed and the MG3702xA serial number. 8.

  • Page 93: 4-10 Level Alc Adjustment

    4-10 Level ALC Adjustment This adjustment updates the ALC Calibration table. Required Equipment • Anritsu ML2438A Power Meter • Anritsu MA2474D Power Sensor • Anritsu 41KC-10 10 dB Attenuator Equipment Setup Connect the equipment as shown in Figure 4-3 MG3702xA...

  • Page 94: Touch Screen Accuracy Adjustment

    4-11 Touch Screen Accuracy Adjustment Chapter 4 — Adjustment Note this power level and then decrease the DAC value until the power level is 1 dB below the noted maximum power. 15. Press Next. 16. Adjust the DAC value so the power meter reads 10 dB below the desired level. 17.
  • Page 95 Chapter 4 — Adjustment 4-11 Touch Screen Accuracy Adjustment After initiating the touch-screen calibration, the calibration routine will count down and automatically Note start the calibration sequence. 2. Press the Touch Screen Calibration Config… button shown in Figure 4-4 and follow the on-screen instructions found on the control panel (Figure 4-5) to start the automatic calibration function.
  • Page 96 4-11 Touch Screen Accuracy Adjustment Chapter 4 — Adjustment Figure 4-6. Touch Screen Control Panel 6. Now test the calibration by dragging the target around the screen as instructed. Figure 4-7. Touch Screen Calibration The calibration process has an automatic time-out feature to ensure that you are able to exit the Note calibration in the event of a problem.

  • Page 97: Chapter 5-Troubleshooting

    Chapter 5 — Troubleshooting Troubleshooting procedures presented in the this chapter may require the removal of the Note instrument’s covers to gain access to the test points on the printed circuit boards and other subassemblies. Danger Hazardous voltages are exposed inside the MG3702xA whenever the power supply enclosure is open and the AC line power is connected.

  • Page 98: Test Equipment List

    Note assembly. The complex nature of this product may necessitate returning the MG3702xA to an Anritsu Service Center for some repairs and associated adjustments (calibrations). Test Equipment List The test equipment for the troubleshooting procedures presented in this chapter is listed in...
  • Page 99 Chapter 5 — Troubleshooting 5-3 Error Messages 2. To view the failure details, press the tab related to the failure (such as Frequency). 3. Highlight the failed test and activate the check mark under both Enabled and Verbose columns. 4. Select Selected Test Log to view the failure details. You may chose to rerun only certain tests at this point.

  • Page 100: Normal Operation Error And Warning/Status Messages

    5-3 Error Messages Chapter 5 — Troubleshooting Normal Operation Error and Warning/Status Messages When an abnormal condition is detected during operation, the MG3702xA displays an error message to indicate that the output is abnormal or that a signal input or data entry is invalid. It also displays warning messages to alert you of conditions that could cause an inaccurate signal generator output.

  • Page 101: No Error Message

    Chapter 5 — Troubleshooting 5-4 No Error Message The error “Unleveled” is often caused by an operator choosing a power setting that is above the Appendix Note capabilities of the instrument at the frequency chosen (and options installed). Refer to “MG3702xA Technical Data Sheet”...
  • Page 102 5-5 Troubleshooting Tables Chapter 5 — Troubleshooting Diplexer Option 015 Output Option 004 (With Option Switched Option 002 Step Coupler 004) Filter Attenuator RF Osc, Fine Loop Output RF Osc, Fine Loop Synth. Controller ALC, Pulse, A10A RF Control A10B Rear Panel Auxilliary PCB Board...
  • Page 103 Chapter 5 — Troubleshooting 5-5 Troubleshooting Tables A1 Mother Board Power Supply Mounting Screws A9 Mounting Screws A7 Mounting Screws Swtiched Filter Mounting Screws Option 004 DDC Mtg Screws RF Train Bracket Mounting Screws Option 009 Rear Panel Output Figure 5-3. Bottom View of the MG3702xA Showing Connector and Test Point Locations MG3702xA MM PN: 10370-10372 Rev.
  • Page 104 5-5 Troubleshooting Tables Chapter 5 — Troubleshooting 2/A7, 3/A7, 4/A2 IIC_SCLK,IIC_SDAT CPU_2 +3.3VA CPU_1 SEL_SPR 4/F2 SEL_AUX 2/F5 SEL_SYNTH 3/F2 SEL_ALC 2/F2 SEL_O 2/A5,2/A2,3/A3,4/A3 2/F5,2/F2,3/F2,4/F2 ASTB 2/A5,2/A2,3/A3,4/A3 2/F5,2/F2,3/F2,4/F2 2/A5,2/A2,3/A3,4/A3 2/B5,2/B2,3/A3,4/A3 INT_4 2/B5,2/B2,3/B3,4/B3 4/F2 INT_3 2/B5,2/B2,3/B3,4/B3 2/F5 INT_2 2/B5,2/B2,3/B3,4/B3 2/F2 INT_1 2/B5,2/B2,3/B3,4/B3 3/F2 IO_ALC...
  • Page 105 Chapter 5 — Troubleshooting 5-5 Troubleshooting Tables CPU_3 DISC_DRIVE HDRSTJ PIDE_D7 PIDE_D8 PIDE_D6 PIDE_D9 PIDE_D5 PIDE_D10 PIDE_D4 PIDE_D11 PIDE_D3 PIDE_D12 PIDE_D2 PIDE_D13 PIDE_D1 PIDE_D14 PIDE_D0 PIDE_D15 PIDE_DRQ PIDE_IOWJ PIDE_IORJ PIDE_RDY PIDE_AKJ PIDE_INTRQ PIDE_A1 CBLID_P PIDE_A0 PIDE_A2 PIDE_CS1J PIDE_CS3J DASP_P +5VA PRI_MSTR 3-552-58 3-552-58...
  • Page 106 5-5 Troubleshooting Tables Chapter 5 — Troubleshooting IIC_SCLK,IIC_SDAT 1/A4,3/A7,4/A2 AUX_2 AUX_1 POWER_SUPPLY +5V_SB 1/H3 PS_INHIBIT 1/B2,2/A2,3/A3,4/A3 1/H3 PWRFAIL +5VA 1/B2,2/A2,3/A3,4/A3 1/H3 1/B2,2/A2,3/A3,4/A3 1/B2,2/B2,3/A3,4/A3 1/B2,2/B2,3/B3,4/B3 +15VB 1/B2,2/B2,3/B3,4/B3 1/B2,2/B2,3/B3,4/B3 1/C2,2/B2,3/B3,4/B3 +3.3VA 1/C2,2/B2,3/B3,4/B3 -15VB 1/C2,2/B2,3/B3,4/B3 1/C2,2/B2,3/B3,4/B3 1/C2,2/B2,3/B3,4/B3 1/C2,2/C2,3/B3,4/B3 +24VB 1/C2,2/C2,3/C3,4/C3 1/C2,2/C2,3/C3,4/C3 1/C2,2/C2,3/C3,4/C3 +5VA 1/D2,2/C2,3/C3,4/C3 +10VB 1/D2,2/C2,3/C3,4/C3...
  • Page 107 Chapter 5 — Troubleshooting 5-5 Troubleshooting Tables IIC_SCLK,IIC_SDAT 1/A4,3/A7,4/A2 ALC_2 ALC_1 1/B2,2/A5,3/A3,4/A3 +5VA 1/B2,2/A5,3/A3,4/A3 1/B2,2/A5,3/A3,4/A3 1/B2,2/B5,3/A3,4/A3 1/B2,2/B5,3/B3,4/B3 +15VB 1/B2,2/B5,3/B3,4/B3 1/B2,2/B5,3/B3,4/B3 1/C2,2/B5,3/B3,4/B3 1/C2,2/B5,3/B3,4/B3 -15VB 1/C2,2/B5,3/B3,4/B3 1/C2,2/B5,3/B3,4/B3 1/C2,2/B5,3/B3,4/B3 1/C2,2/C5,3/B3,4/B3 +24VB 1/C2,2/C5,3/C3,4/C3 1/C2,2/C5,3/C3,4/C3 1/C2,2/C5,3/C3,4/C3 1/D2,2/C5,3/C3,4/C3 +10VB 1/D2,2/C5,3/C3,4/C3 1/D2,2/C5,3/C3,4/C3 1/D2,2/C5,3/C3,4/C3 IIC_SCLK IIC_SDAT 1/D2,2/C5,3/C3,4/C3 1/D2,2/C5,3/C3,4/C3 1/D2,2/D5,3/D3,4/D3 1/D2,2/D5,3/D3,4/D3 1/D2,2/D5,3/D3,4/D3...
  • Page 108 5-5 Troubleshooting Tables Chapter 5 — Troubleshooting 1/A4,2/A7,4/A2 IIC_SCLK,IIC_SDAT OUTPUT/FINE COARSE/REF +5VA +5VA +15VB +15VB -15VB -15VB +24VB +24VB +10VB +10VB IIC_SCLK IIC_SCLK IIC_SDAT IIC_SDAT VCO_POL 3/C1 +8VB +8VB +8VA +8VA +3.3VA +3.3VA LVDS_VCO+ 3/E0 LVDS_VCO- 3/E0 +12VS OL_10_20_A DVM_SYN 3/E0 2/E4 OL_10_20_B...
  • Page 109 Chapter 5 — Troubleshooting 5-5 Troubleshooting Tables 1/A4,2/A7,4/A2 IIC_SCLK,IIC_SDAT SYNTH_2 SYNTH_1 1/B2,2/A5,2/A2,4/A3 +5VA 1/B2,2/A5,2/A2,4/A3 1/B2,2/A5,2/A2,4/A3 1/B2,2/B5,2/B2,4/A3 1/B2,2/B5,2/B2,4/B3 +15VB 1/B2,2/B5,2/B2,4/B3 1/B2,2/B5,2/B2,4/B3 1/C2,2/B5,2/B2,4/B3 1/C2,2/B5,2/B2,4/B3 -15VB 1/C2,2/B5,2/B2,4/B3 1/C2,2/B5,2/B2,4/B3 1/C2,2/B5,2/B2,4/B3 1/C2,2/C5,2/C2,4/B3 +24VB 1/C2,2/C5,2/C2,4/C3 1/C2,2/C5,2/C2,4/C3 1/C2,2/C5,2/C2,4/C3 1/D2,2/C5,2/C2,4/C3 +10VB 1/D2,2/C5,2/C2,4/C3 1/D2,2/C5,2/C2,4/C3 1/D2,2/C5,2/C2,4/C3 IIC_SCLK IIC_SDAT 1/D2,2/C5,2/C2,4/C3 VCO_POL 3/C4 1/D2,2/C5,2/C2,4/C3 1/D2,2/D5,2/D2,4/D3...
  • Page 110 5-5 Troubleshooting Tables Chapter 5 — Troubleshooting 1/A4,2/A7,3/A7 IIC_SCLK,IIC_SDAT SPARE_1 SPARE_2 1/B2,2/A5,2/A2,3/A3 +5VA 1/B2,2/A5,2/A2,3/A3 1/B2,2/A5,2/A2,3/A3 1/B2,2/B5,2/B2,3/A3 1/B2,2/B5,2/B2,3/B3 +15VB 1/B2,2/B5,2/B2,3/B3 1/B2,2/B5,2/B2,3/B3 1/C2,2/B5,2/B2,3/B3 1/C2,2/B5,2/B2,3/B3 -15VB 1/C2,2/B5,2/B2,3/B3 1/C2,2/B5,2/B2,3/B3 1/C2,2/B5,2/B2,3/B3 1/C2,2/C5,2/C2,3/B3 +24VB 1/C2,2/C5,2/C2,3/C3 1/C2,2/C5,2/C2,3/C3 1/C2,2/C5,2/C2,3/C3 1/D2,2/C5,2/C2,3/C3 +10VB 1/D2,2/C5,2/C2,3/C3 1/D2,2/C5,2/C2,3/C3 1/D2,2/C5,2/C2,3/C3 IIC_SCLK IIC_SDAT 1/D2,2/C5,2/C2,3/C3 1/D2,2/C5,2/C2,3/C3 1/D2,2/D5,2/D2,3/D3 1/D2,2/D5,2/D2,3/D3 +8VB...
  • Page 111 Chapter 5 — Troubleshooting 5-5 Troubleshooting Tables COUPLER +15VB -15VB +12VF 2/H6,4/B4 +12F_RTN 2/H6,4/B4 551-937 551-937 UPFAN EXT_MMW_BIAS +12VF 2/H6,4/A6 +12F_RTN 2/H6,4/A6 -15V_MMW 551-937 +15V_MMW EN_VCO 3/F4,3/F0 10M_DIPLEX 10MHZ_DIPLX 2/G1 551-1058 551-937 A13-2 SWITCHED_DOUBLER_FRONT 2G_DIPLEX 2GHZ_DIPLX SDM_32-40GHZ 2/F0,4/E7 2/G0 SDM_25-32GHZ 2/F0,4/E7 551-937 SDM_ID...

  • Page 112: Checking Dc Voltages

    6. Replace the standby and main power supplies. • If the instrument powers up, the problem is cleared. • If the instrument fails to power up, contact your local Anritsu service center for assistance. Table 5-4. Malfunctions Not Displaying an Error Message 2...
  • Page 113 • If the LEDs do not toggle or if both LEDs are lit, the problem may be caused by a CPU malfunction. Replace the A2 PCB. 5. If the instrument fails to power up, contact your local Anritsu service center for assistance. Table 5-5.
  • Page 114 Verify that the fan filters are not blocked. d. Check the condition of the RF output connector. 2. If none of the above problems are found, contact your local Anritsu service center for assistance. Table 5-9. Error Messages after Entering the Synthesizer Application Description: The unit stops the boot up process right after it enters into the MG3702xA application because the unit fails the short self test.
  • Page 115 3. Replace the A4 PCB, perform a manual DVM calibration and run self-test. • If no error message is displayed, the problem is cleared. • If any of the error messages, 100 and 101, are displayed, contact your local Anritsu service center for assistance.
  • Page 116 1. Replace the A6 PCB, and run self-test. • If no error message is displayed, the problem is cleared. • If error message 121 or 122 are displayed, contact your local Anritsu service center for assistance. 5-20 PN: 10370-10372 Rev. B...
  • Page 117 1. Press the OUTPUT key on the front panel to turn the RF output ON. 2. Run self-test again. If error 144 is still displayed, contact your local Anritsu service center for assistance. Table 5-17. Error Message 148 100 MHz reference circuitry failed Description: Indicates that the 100 MHz signal from the A7 board not operating or connected to the input clock signal for A8 FPGA.
  • Page 118 4.). • If no error message is displayed, the problem is cleared. • If error message 163 or 164 is displayed, contact your local Anritsu service center for assistance. Table 5-22. Error Messages 165, 166 and 167 All of these errors are associated with the A8 RAM.
  • Page 119 1. 1. Replace the A6 board, and run self-test. • If no error message is displayed, the problem is cleared. • If error messages 168, 169 or 170 are displayed, contact your local Anritsu service center for assistance. Table 5-24. Error message 171 Processor Battery Description: Indicates the RTC battery voltage on the A2 board is out of tolerance.
  • Page 120 5-5 Troubleshooting Tables Chapter 5 — Troubleshooting 5-24 PN: 10370-10372 Rev. B MG3702xA MM...

  • Page 121: Chapter 6-Removal And Replacement Procedures

    When replacing RF components with SMA, K or V connectors it is important to torque these to the proper value. In the MG3702xA unit that setting is 8 in/lbs. You can purchase a Anritsu torque wrench which is set to 8 in/lb. The Anritsu part number is 01-201.

  • Page 122: Replaceable Parts

    Chapter 6 — Removal and Replacement Procedures Replaceable Parts Anritsu maintains an exchange assembly program for selected MG3702xA subassemblies and RF components. If one of these subassemblies malfunctions, the defective instrument can be exchanged. All exchange subassemblies and RF components are warranted for 90 days from the date of shipment, or for the balance of the original equipment warranty, whichever is longer.

  • Page 123: Calibration And Verification After Subassembly Replacement

    015 installed. a. Alternate Anritsu part numbers are backward compatible. b. The front panel is an integrated unit consisting of the casting, display, keypad parts, and knob. Order the front panel assembly and the Model ID plate when any of the front panel items is failing. The RF Out connector is a separate item and should be ordered separately.
  • Page 124 6-3 Calibration and Verification after Subassembly Replacement Chapter 6 — Removal and Replacement Table 6-2. Adjustment and Verifications Required after Subassembly Replacement (2 of 4) Subassembly/RF Component Replaced Perform the Following Adjustments and Verifications A2 Microprocessor PCB Section 4-6 “Utility DVM Adjustment” Section 4-7 “Frequency Reference Adjustment”...
  • Page 125 Chapter 6 — Removal and Replacement Procedures 6-3 Calibration and Verification after Subassembly Table 6-2. Adjustment and Verifications Required after Subassembly Replacement (3 of 4) Subassembly/RF Component Replaced Perform the Following Adjustments and Verifications A16 40 GHz Diplex Switch Section 4-7 “Frequency Reference Adjustment” Section 4-8 “Level Detector Tables and Level Flatness Adjustment”...

  • Page 126: Removing The Instrument Covers

    The screws with green heads have metric threads. When it becomes necessary to replace any of Warning these screws, always use the exact replacement green-headed screws to avoid damage to the instrument. Anritsu PN: 905-8 (long); Z-951102 (short). 1. Using a Phillips screwdriver, remove the screws and the front handle assemblies from the instrument (see Figure 6-1).
  • Page 127 Chapter 6 — Removal and Replacement Procedures 6-4 Removing the Instrument Covers 7. To replace the instrument covers, reverse the procedure used to remove them. Note It is necessary to remove the side covers only if the front panel must be removed in a later step. Metric Threaded Screws (Green Colored Heads) Figure 6-1.

  • Page 128: Front Panel And Rf Output Connector

    6-5 Front Panel and RF Output Connector Chapter 6 — Removal and Replacement Procedures Top Panel Screws Side Panel Side Panel Screw Screw Bottom Panel Screws Figure 6-2. Rear Panel Retaining Screw Locations Front Panel and RF Output Connector This section provides instructions for removing and replacing the front panel assembly of the MG3702xA. The front panel assembly contains the A1 front panel PCB.
  • Page 129 Chapter 6 — Removal and Replacement Procedures 6-5 Front Panel and RF Output Connector Detach Cables from Front Panel (2 each) Output Connector Retaining Nut (5/8”) Torque with 8 in/lb 5/16” wrench Figure 6-3. Front Panel Removal 5. Carefully pull the front panel assembly forward until it is clear of the RF OUTPUT connector. Set front panel aside.

  • Page 130: A2 Cpu Assembly And Hard Drive

    If possible, save the existing calibration data onto a flash drive by doing the following: 1. Insert USB flash drive into unit. 2. Copy the C:\Anritsu\MG37020A\Calibration directory to the USB flash drive. 3. Remove the Options.dat and SerialNumber.dat file from the USB flash drive.
  • Page 131 Chapter 6 — Removal and Replacement Procedures 6-6 A2 CPU Assembly and Hard Drive Remove A2 Screws and Cover A2 Processor (RTC) Battery Remove 2 ribbon cables from A2 PCB Lift tabs to release A2 PCB Figure 6-4. A2 Microprocessor PCB Removal MG3702xA MM PN: 10370-10372 Rev.

  • Page 132: Battery Replacement Procedure

    Assembly then a full calibration and verification needs to be performed. Battery Replacement Procedure Figure 6-6 below for the location of the processor battery (Anritsu part number 3-633-43 for CR2032 coin battery) 1. Lift the tab over the battery to remove.

  • Page 133: A7 Or A9 Pcb

    Chapter 6 — Removal and Replacement Procedures 6-7 A7 or A9 PCB 2. After replacement of the battery, enter the correct date and time in the Control Panel menu of Windows. A2 CPU RTC Battery CPU/Heatsink detached for clarity Figure 6-6. A2 Battery Replacement 3.

  • Page 134: A4, A6, A8 Pcbs

    6-8 A4, A6, A8 PCBs Chapter 6 — Removal and Replacement Procedures A4, A6, A8 PCBs These PCBs are secured by a locking catch on each end of the board. Figure 6-7 shows the locked and unlocked positions of the catch. The PCB is unlocked when the circular tab is pushed inward. Preliminary Remove the front handles, rear feet, and chassis top and bottom covers as described in Section...

  • Page 135: Main Power Supply, Auxiliary Power Supply Or Regulator Pcb

    Chapter 6 — Removal and Replacement Procedures 6-9 Main Power Supply, Auxiliary Power Supply or Main Power Supply, Auxiliary Power Supply or Regulator PCB The main supply, auxiliary (standby) supply and voltage regulator PCBs are found under the power supply cover as shown in Figure 6-8.
  • Page 136 6-9 Main Power Supply, Auxiliary Power Supply or Regulator PCB Chapter 6 — Removal and Replacement Main Power Supply Screws Main Power Supply Standby (Auxilliary) Power Supply A3 Regulator PCB Figure 6-8. Power Supply Replacement 6-16 PN: 10370-10372 Rev. B MG3702xA MM...

  • Page 137: 6-10 Rear Panel Bnc Interface Pcb

    Chapter 6 — Removal and Replacement Procedures 6-10 Rear Panel BNC Interface PCB 6-10 Rear Panel BNC Interface PCB Preliminary Remove the front handles, rear feet, and chassis covers as described in Section 6-4. Procedure Refer to Figure 6-9. To replace the rear panel BNC interface: 1.

  • Page 138: Rear Panel Digital Interface Pcb

    6-11 Rear Panel Digital Interface PCB Chapter 6 — Removal and Replacement Procedures 6-11 Rear Panel Digital Interface PCB Preliminary Remove the front handles, rear feet, and chassis covers as described in Section 6-4. Procedure To replace this PCB, the entire power supply enclosure must be removed. To remove the power supply enclosure, perform the following steps: 1.

  • Page 139: 6-12 Cooling Fans

    Chapter 6 — Removal and Replacement Procedures 6-12 Cooling Fans 6-12 Cooling Fans The power supply fan and the main system fan are held in place by anti-vibration mounts, using no screws. The smaller A2 CPU fan is mounted using anti vibration rubber grommets and screws. Main System Fan Refer to Figure...

  • Page 140: Power Supply Fan

    6-12 Cooling Fans Chapter 6 — Removal and Replacement Procedures Power Supply Fan Replacing the power supply fan requires removing the power supply cover. Danger Hazardous voltages are exposed inside the MG3702xA whenever the power supply enclosure is open and the AC line power is connected. Turn off the instrument and remove the line cord before removing the power supply cover.

  • Page 141: A2 Cpu Cooling Fan

    Chapter 6 — Removal and Replacement Procedures 6-12 Cooling Fans Fan Vibration Isolator (790-581) Qty 4 Remove connector housing so Power fan wires can be passed through the rubber islolator on power supply wall Supply Red Wire Fan Wiring Detail Mate with P2 on A3 PC Board Black Wire Figure 6-12.
  • Page 142 6-12 Cooling Fans Chapter 6 — Removal and Replacement Procedures Vibration Isolator 3-790-285 (4 each) Fan Connector Mated to A1-P7 Fan Mounting Screw 3-905-2645P (4 each) Blue Wire Fan Connector Wiring Red Wire Figure 6-13. A2 CPU Fan Replacement 6-22 PN: 10370-10372 Rev.

  • Page 143: 6-13 Rf Components

    When tightening component and cable RF connections, use a torque wrench Caution (Anritsu part number 01-201). Failure to use a torque wrench can cause damage to RF connectors. Use extreme caution when plugging the step attenuator cable into the motherboard connector. If Caution inserted incorrectly, the step attenuator may be destroyed.
  • Page 144 6-13 RF Components Chapter 6 — Removal and Replacement Procedures 6-24 PN: 10370-10372 Rev. B MG3702xA MM...

  • Page 145: Appendix A-Test Records

    Appendix A — Test Records Introduction This appendix provides tables for recording the results of the performance verification tests (Chapter 3) and the calibration procedures (Chapter 4). They jointly provide the means for maintaining an accurate and complete record of instrument performance. Some test records are customized to cover particular MG3702xA options.

  • Page 146: Harmonics And Harmonically Related Signals Test (Without Option 15

    Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-7 Harmonics and Harmonically Related Signals Test (without Option 15) All MG3702xA Models without Option 15 Power level: The power level changes based on frequency, model and options installed. Set L1 to the lesser of +10 dBm or to the maximum specified power level.

  • Page 147: Harmonics And Harmonically Related Signals Test (With Option 15

    Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-7 Harmonics and Harmonically Related Signals Test (with Option 15) All MG3702xA Models with Option 15 Power level: The power level changes based on frequency, model and options installed. Set L0 to the lesser of +10 dBm or to the maximum specified power level.

  • Page 148: Non-Harmonic Signals Test (Part 1

    Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-7 Non-Harmonic Signals Test (Part 1) (1 of 3) MG3702xA Spectrum Spectrum Spectrum MG3702xA Output Analyzer Start Analyzer Stop Analyzer Test Frequency Power Frequency Frequency Result Spec.
  • Page 149 Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-7 Non-Harmonic Signals Test (Part 1) (2 of 3) MG3702xA Spectrum Spectrum Spectrum MG3702xA Output Analyzer Start Analyzer Stop Analyzer Test Frequency Power Frequency Frequency Result Spec.
  • Page 150 Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-7 Non-Harmonic Signals Test (Part 1) (3 of 3) MG3702xA Spectrum Spectrum Spectrum MG3702xA Output Analyzer Start Analyzer Stop Analyzer Test Frequency Power Frequency Frequency Result Spec.

  • Page 151: Non-Harmonic Signals Test (Part 2

    Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-7 Non-Harmonic Signals Test (Part 2) Non-Harmonic Test Procedure: Part 2 (with option 004 installed) 1.100000 10 dBm 1.100000 1 MHz 30 kHz –40 1.100000 10 dBm 1.500000 1 MHz...

  • Page 152: Ssb Phase Noise Test: Agilent Test Equipment

    Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-8 SSB Phase Noise Test: Agilent Test Equipment Power Line and Fan Rotation Emissions All MG3702xA Models (1 of 2) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) Test Frequency: 15 MHz (Models with Option 004)

  • Page 153: Ssb Phase Noise Test: Agilent Test Equipment

    Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-8 SSB Phase Noise Test: Agilent Test Equipment Power Line and Fan Rotation Emissions All MG3702xA Models (2 of 2) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) <...
  • Page 154 Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-8 SSB Phase Noise Test: Agilent Test Equipment All MG3702xA Models Single Sideband Phase Noise (1 of 3) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) Test Frequency: 15 MHz (Models with Option 004) 10 Hz...
  • Page 155 Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-8 SSB Phase Noise Test: Agilent Test Equipment All MG3702xA Models Single Sideband Phase Noise (2 of 3) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) 100 Hz –104...
  • Page 156 Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-8 SSB Phase Noise Test: Agilent Test Equipment All MG3702xA Models Single Sideband Phase Noise (3 of 3) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) Test Frequency: 6.0 GHz 10 Hz...
  • Page 157 Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-8 SSB Phase Noise Test: AeroFlex Test Equipment All MG3702xA Models (1 of 3) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) Test Frequency: 15 MHz (Models with Option 004) 10 Hz –101...
  • Page 158 Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-8 SSB Phase Noise Test: AeroFlex Test Equipment All MG3702xA Models (2 of 3) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) 100 Hz –104 2.38...
  • Page 159 Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-8 SSB Phase Noise Test: AeroFlex Test Equipment All MG3702xA Models (3 of 3) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) Test Frequency: 6.0 GHz 10 Hz –50...
  • Page 160 Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-8 SSB Phase Noise Test: AeroFlex Test Equipment Power Line and Fan Rotation Emissions All MG3702xA Models (1 of 2) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) Test Frequency: 15 MHz (Models with Option 004)
  • Page 161 Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-8 SSB Phase Noise Test: AeroFlex Test Equipment Power Line and Fan Rotation Emissions All MG3702xA Models (2 of 2) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) <...

  • Page 162: Power Level Accuracy And Flatness Tests

    Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-9 Power Level Accuracy and Flatness Tests Power Level Log Conformity All MG3702xA Models (1 of 2) Set F0 to 2.199 GHz (Option 4) Set F0 to 2.201 GHz (Option 4) or skip if Opt.

  • Page 163: Power Level Accuracy And Flatness Tests

    Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-9 Power Level Accuracy and Flatness Tests Power Level Log Conformity All MG3702xA Models (2 of 2) Set F0 to 2.199 GHz (Option 4) Set F0 to 2.201 GHz (Option 4) or skip if Opt.

  • Page 164: Power Level Accuracy And Flatness Tests

    Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-9 Power Level Accuracy and Flatness Tests Power Level Accuracy (Models without Option 002) (1 of 2) Measured Measured Measured Specification Measurement Set L0 Power (dBm) Power (dBm) Power (dBm) (dBm)
  • Page 165 Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-9 Power Level Accuracy and Flatness Tests Power Level Accuracy (Models without Option 002) (2 of 2) Measured Measured Measured Specification Measurement Set L0 Power (dBm) Power (dBm) Power (dBm) (dBm)
  • Page 166 Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-9 Power Level Accuracy and Flatness Tests Power Level Accuracy (Models with Option 002) (1 of 6) Measured Power Measured Power Measured Power Spec Measurement Setting (dBm) (dBm)
  • Page 167 Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-9 Power Level Accuracy and Flatness Tests Power Level Accuracy (Models with Option 002) (2 of 6) Measured Power Measured Power Measured Power Spec Measurement Setting (dBm) (dBm)
  • Page 168 Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-9 Power Level Accuracy and Flatness Tests Power Level Accuracy (Models with Option 002) (3 of 6) Measured Power Measured Power Measured Power Spec Measurement Setting (dBm) (dBm)
  • Page 169 Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-9 Power Level Accuracy and Flatness Tests Power Level Accuracy (Models with Option 002) (4 of 6) Measured Power Measured Power Measured Power Spec Measurement Setting (dBm) (dBm)
  • Page 170 Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-9 Power Level Accuracy and Flatness Tests Power Level Accuracy (Models with Option 002) (5 of 6) Measured Power Measured Power Measured Power Spec Measurement Setting (dBm) (dBm)
  • Page 171 Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-9 Power Level Accuracy and Flatness Tests Power Level Accuracy (Models with Option 002) (6 of 6) Measured Power Measured Power Measured Power Spec Measurement Setting (dBm) (dBm)

  • Page 172: Power Level Flatness

    Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-9 Power Level Flatness All MG3702xA Models without Option 002 Set L0 to +17 dBm Maximum Minimum Variation Variation Measurement Power # Of Power Power (Max–Min) Spec.

  • Page 173: Maximum Leveled Power

    Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-9 Maximum Leveled Power All MG3702xA Models without Option 015 and with or without Option 004 Set L0 to +30 dBm Minimum Specification Specification Measured without with Measurement...

  • Page 174: Pulse Modulation Tests

    Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: Section 3-10 Pulse Modulation Tests All MG3702xA Models with Option 026 Pulse Rise and Fall Times DUT Frequency Measurement (GHz) Rise Time (ns) Fall Time (ns) Specification (ns) Uncertainty (±...

  • Page 175: Adjustments After Subassembly Replacement

    Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: External Pulse Power Accuracy (Pulse Width 1 s) DUT Frequency Specification Measurement (GHz) (Volts) (Volts) (dB) (dB) Uncertainty (dB) pulse accuracy 0.050 000 001 ±0.5 1.200 000 001 ±0.5 1.900 000 001 ±0.5...
  • Page 176 Appendix A — Test Records Model Number: Firmware Revision: Date: Serial Number: Options: Operator: A-32 PN: 10370-10372 Rev. B MG3702xA MM...

  • Page 177: Appendix B-Performance Specifications

    The latest version of the MG3702xA RF/Microwave Signal Generators Technical Data Sheet, Anritsu PN: 11410-00429, can be downloaded from the Anritsu Internet site: http://www.anritsu.com The data sheet provides performance specifications for all of the various models in the MG3702xA series. MG3702xA MM PN: 10370-10372 Rev. B...
  • Page 178 B-1 MG3702xA Technical Data Sheet Appendix B — Performance Specifications PN: 10370-10372 Rev. B MG3702xA MM...

  • Page 179: Index

    Numerics to A Index Numerics adjustment ......4-2, 6-4 100 MHz reference block diagram ......2-2 A7 PCB .
  • Page 180 C to P adjustment ......4-2, 6-4 adjustment ......4-5 block diagram .
  • Page 181 processor battery error 171 ......5-3, 5-23 replacement ......6-10 progamming manual .
  • Page 182 Index-4 PN: 10370-10372 Rev. B MG3702xA MM...
  • Page 184 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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