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Agilent Technologies N5161A User Manual

Agilent Technologies N5161A
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Agilent Technologies
Agilent Technologies
N5161A/62A/81A/82A/83A
MXG Signal Generators
Service Guide
NOTICE: In August 2014, Agilent
Technologies’ former Test and Measurement
business became Keysight Technologies. This
document is provided as a courtesy but is no
longer kept current and thus will contain
historical references to Agilent. For more
information, go to www.keysight.com.
深圳德标仪器 135-1095-0799

Table of Contents

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Agilent Technologies N5161A Specifications

General IconGeneral
BrandAgilent Technologies
ModelN5161A
CategoryPortable Generator
LanguageEnglish

Summary

Notices

Warranty

Provides warranty terms and conditions for the document.

Technology Licenses

Outlines terms for hardware and software licensing.

Restricted Rights Legend

Details U.S. Government restricted rights for software and technical data.

Safety Notices

Explains CAUTION and WARNING notices used in the document.

Troubleshooting

Before Troubleshooting

Covers initial warnings and preparation before troubleshooting.

ESD Information

Details protection from electrostatic discharge and handling components.

Contacting Agilent Technologies

Information on how and what to provide when contacting Agilent for support.

Returning a Signal Generator for Service

Instructions for returning the instrument for service.

Overall Block Description

A1 Power Supply

Describes the main power supply unit and its operation.

A2 Vector Module (N5162A/82A Only)

Details the baseband generator assembly for digital modulation.

A3 RF Assembly (N5161A/62A/81A/82A Only)

Explains the RF assembly combining reference, synthesizer, and output circuits.

Reference Circuitry

Describes the 10 MHz VCTCXO oscillator and its output signals.

Synthesizer Circuitry

Output Power Leveling Circuitry (Automatic Leveling Control Circuitry)

Details the ALC loop for maintaining leveled output power.

A3 RF Assembly (N5183A Only)

Describes the A3 RF assembly for N5183A, covering frequency range and features.

Reference Circuitry

Describes the 10 MHz VCTCXO oscillator and its output signals.

ALC On Operation

ALC Off Operation

Describes the open-loop operation of the Automatic Leveling Control.

Power Search Mode Operation

Explains the power search mode for modulation.

Attenuator Option 1E1

Details the attenuator option for extending power range.

Generating Frequencies > 3.2 GHz

Explains frequency generation above 3.2 GHz using doublers.

Front Panel Hardkeys and Softkeys

LCD Display

Provides information about the signal generator's display.

Documentation Overview

Lists available documentation like Installation Guide, User's Guide, etc.

Getting Started with Troubleshooting

Before Troubleshooting

Covers initial warnings and preparation before troubleshooting.

ESD Information

Details protection from electrostatic discharge and handling components.

Contacting Agilent Technologies

Information on how and what to provide when contacting Agilent for support.

Returning a Signal Generator for Service

Instructions for returning the instrument for service.

Self Test Overview

Running Self Test

Provides instructions on how to perform a complete self-test.

Self Test Failure

Guides on interpreting self-test failures and identifying faulty assemblies.

Accessing the MXG Web-Enabled Page

Instructions for accessing the instrument via a web browser.

Self Tests Do Not Run or Self Tests Run Slowly

Boot-up Routine

Describes the sequence of operations during instrument startup.

Troubleshooting Self Test 1105

Specific troubleshooting steps for self-test failure 1105.

Troubleshooting Assembly Level Problems

General procedures for troubleshooting individual instrument assemblies.

A1 Power Supply

A2 Vector Module Troubleshooting (N5162A/82A Only)

Steps to troubleshoot the A2 Vector Module.

A3 RF Assembly Troubleshooting

Specific troubleshooting for the A3 RF assembly.

A4 Internal Memory Card Troubleshooting (N5162A/82A Only)

Troubleshooting steps for the A4 Internal Memory Card.

A5 CPU Assembly Troubleshooting

A6 DC-AC Inverter Interface Board (N5181A/82A/83A)

Troubleshooting the A6 DC-AC Inverter Interface Board.

A7 Micro Deck (N5183A)

Troubleshooting the A7 Micro Deck for N5183A.

LEDs

Troubleshooting using LEDs on the A7 Micro Deck.

A8 Floating BNC Bypass Troubleshooting (N5183A)

A9 Interface Board Troubleshooting (N5161A/62A)

Troubleshooting the A9 Interface Board.

No Output Power or Output Power is Unleveled (N5183A)

Troubleshooting steps for no or unleveled output power.

Low Output Power or No Output Power < 3.2 GHz (N5183A)

Troubleshooting low or no output power below 3.2 GHz.

Low Output Power or No Output Power >= 3.2 GHz (N5183A)

Checking A3 RF Assembly Output Signals < 3.2 GHz (N5183A)

Checking output signals from A3 RF Assembly below 3.2 GHz.

Checking Attenuator Output Signals >= 3.2 GHz (N5183A)

Checking attenuator output signals above 3.2 GHz.

Checking ALC Operation < 3.2 GHz (N5183A)

Verifying ALC operation below 3.2 GHz.

Amplitude Modulation Problems (N5183A)

Pulse Modulation Problems (N5183A)

Troubleshooting issues with pulse modulation.

LCD Display Appears to be Inoperative (Dark)

Steps to take if the LCD display is dark or inoperative.

The Signal Generator Does Not Power On

Troubleshooting steps when the signal generator does not power on.

The Green Front Panel Power Switch LED or Yellow Standby LED is Not Working

All Front Panel LEDs are Not Functioning

Troubleshooting when all front panel LEDs are not functioning.

Front Panel Hardkeys or Softkeys are Not Functioning (N5181A/82A/83A)

Troubleshooting non-functional front panel keys.

The RPG Knob is Not Functioning (N5181A/82A/83A)

Troubleshooting steps for a non-functional RPG knob.

Blank or Missing Pixels (N5181A/82A/83A)

The Screen Saver is Not Functioning (N5181A/82A/83A)

Troubleshooting steps if the screen saver is not functioning.

Boot Time Diagnostics Mode (N5161A/62A Only)

Procedure for accessing boot time diagnostics mode on specific models.

Exceptions - Auto-reboot, ERROR LED Blinking (N5161A/62A Only)

Handling exceptions like auto-reboot and ERROR LED blinking.

No GPIB Activity

Error Messages

Information on error messages and where to find more details.

Troubleshooting Unlocks

Steps to troubleshoot phase lock loop unlock messages.

508 Frac-N Loop Unlock

Troubleshooting specific Frac-N loop unlock issues.

512 Reference Unlocked

515 Reference Missing

Troubleshooting steps for a 515 reference missing message.

532 PCI Bridge FPGA DCM Unlocked

Troubleshooting steps for PCI Bridge FPGA DCM unlocked message.

533 RF Analog FPGA DCM Unlocked

Troubleshooting steps for RF Analog FPGA DCM unlocked message.

Troubleshooting Unlevels

Troubleshooting the RF Path (N5161A/62A/81A/82A)

Troubleshooting steps for issues in the RF path.

Troubleshooting the 6 GHz Electronic Attenuator (N5161A/62A/81A/82A)

Troubleshooting the 6 GHz electronic attenuator.

Troubleshooting Harmonic Spurious

Troubleshooting harmonic spurious signals.

Troubleshooting Harmonic Spurious by Fundamental Frequency

To Verify Harmonic Performance at the RF Output

Procedure to verify harmonic performance at the RF output.

Troubleshooting Non-Harmonic Spurious

Troubleshooting non-harmonic spurious signals.

Troubleshooting Performance Test Problems

Manual Performance Test Problems

Locating faulty assemblies based on manual performance test failures.

Troubleshooting Adjustment Test Problems (N5183A Only)

Troubleshooting specific adjustment failures for N5183A.

Automated Performance Test Problems

Locating faulty assemblies based on automated performance test failures.

FM Distortion

Digital Modulation Quality (N5162A/82A only)

Troubleshooting digital modulation quality issues.

DCFM Carrier Offset

Troubleshooting DCFM carrier offset.

Amplitude Switching Speed

Troubleshooting amplitude switching speed.

Replaceable Parts

Ordering Information

Steps to order replacement parts.

Order Parts Fast

Information on ordering parts quickly via the support website.

Shipping a Defective Assembly Back to Agilent Technologies

Procedures for returning defective assemblies.

Frequency and Hardware Options

Lists available frequency and hardware options for the signal generators.

Assemblies and Hardware Options

Front Panel Assemblies (N5161A/62A only)

Shows front panel assemblies for N5161A/62A models.

Front Panel Assemblies (N5181A/82A/83A only)

Shows front panel assemblies for N5181A/82A/83A models.

Assemblies from a Top View

Illustrates the location of assemblies when viewed from the top.

Assemblies from a Bottom View

Illustrates the location of assemblies when viewed from the bottom.

Cables

Cables from a Top View

Illustrates cable connections when viewed from the top.

Cables from a Bottom View

Illustrates cable connections when viewed from the bottom.

Hardware

Lists part numbers for hardware and other instrument parts.

Front Panel View

Illustrates and lists parts for the front panel view.

Disassembled Rear Panel View

Rear Panel Views

Illustrates rear panel views for different models.

Main Chassis with Inside Covers

Illustrates and lists parts for the main chassis and inside covers.

Outer Instrument Cover and Associated Parts

Lists parts for the outer instrument cover and associated items.

Miscellaneous

Lists part numbers for miscellaneous items.

Documentation

Electrostatic Discharge (ESD) Protective Supplies

Lists part numbers for ESD protective supplies.

Abbreviations Used in Part Descriptions

Defines reference designators, abbreviations, and option numbers used in parts.

Assembly Replacement

Before You Replace an Assembly

Covers important precautions and firmware requirements before assembly replacement.

After Replacing or Repairing an Assembly

Outlines post-replacement procedures and required performance tests.

Assemblies You Can Replace

Lists all replaceable assemblies with their corresponding page numbers.

Outer Cover

Provides removal and replacement procedures for the outer cover.

Inner Top Cover

Inner Bottom Cover

Provides removal and replacement procedures for the inner bottom cover.

Front-Panel

Provides removal and replacement procedures for the front panel.

USB Board

Provides removal and replacement procedures for the USB board.

LCD Display (N5181A/82A/83A only)

A6 DC-AC Inverter Interface Board (N5181A/82A/83A only)

Provides removal and replacement procedures for the A6 DC-AC Inverter Interface Board.

A9 Interface Board (N5161A/62A only)

Provides removal and replacement procedures for the A9 Interface Board.

Key Pad (N5181A/82A/83A only)

Provides removal and replacement procedures for the Key Pad.

Power Switch

Rear Panel (N5161A/81A)

Provides removal and replacement procedures for the rear panel of N5161A/81A.

Rear Panel (N5162A/82A)

Provides removal and replacement procedures for the rear panel of N5162A/82A.

Rear Panel (N5183A)

Provides removal and replacement procedures for the rear panel of N5183A.

A1 Power Supply

A2 Vector Module (N5162A with Option 012 and N5182A Option 1EM with Option 012)

Provides removal and replacement procedures for A2 Vector Module with specific options.

A2 Vector Module (N5162A/82A without Option 012)

Provides removal and replacement procedures for A2 Vector Module without specific options.

A3 RF Assembly - Standard (N5181A/82A)

A3 RF Assembly - N5161A and N5181A Option 1EM

Provides removal and replacement procedures for A3 RF Assembly with specific options.

A3 RF Assembly (N5183A only)

Provides removal and replacement procedures for A3 RF Assembly for N5183A.

A3BT1 Battery

Provides removal and replacement procedures for the A3BT1 Battery.

A4 Internal Memory Card (N5162A/82A only)

A5 CPU

Provides removal and replacement procedures for the A5 CPU.

A7 Micro-Deck (N5183A only - Standard)

Provides removal and replacement procedures for A7 Micro-Deck standard N5183A.

A7 Micro-Deck (N5183A only - Option 1EM)

Provides removal and replacement procedures for A7 Micro-Deck Option 1EM N5183A.

A8 Floating BNC Bypass (N5183A only)

RF Connector (N5183A only - Standard)

Provides removal and replacement procedures for RF Connector on N5183A.

B1 thru B4 Fans

Provides removal and replacement procedures for B1 through B4 Fans.

Post-Repair Procedures and Performance Verification

Post Repair Procedures

Covers essential procedures after assembly replacement and before verification.

Assembly Installation and Removal Overview

Provides an overview of hardware assembly installation and removal softkeys.

Assembly Removal and Installation Procedure

Outlines the high-level process for replacing an assembly.

Service Procedure

Details service procedures, firmware upgrades, and backup/restore steps.

Post-Repair Overview

Manual Performance Tests

Lists recommended manual performance verification tests after repair.

If a manual performance verification test fails:

Steps to take if a manual performance test fails.

I/Q Calibration (N5162A/82A only)

Procedure for performing I/Q calibration on specific models.

Running Self Test

Instructions for running the complete self-test diagnostics.

Self Test Failure

Viewing Test Results

How to view detailed results of self-tests.

Relative Frequency Range and Accuracy Verification (N5161A/62A/81A/82A Only)

Procedure to verify frequency accuracy relative to the timebase.

Frequency Counter Procedure (N5161A/62A/81A/82A)

Steps for using a frequency counter for accuracy tests.

Spectrum Analyzer Procedure (N5161A/62A/81A/82A)

Steps for using a spectrum analyzer for accuracy tests.

Leveled Output Power Verification (N5161A/62A/81A/82A Only)

N5161A/81A Output Power Test Procedure

Specific procedure for testing output power on N5161A/81A models.

N5162A/82A Output Power Test Procedure

Specific procedure for testing output power on N5162A/82A models.

Leveled Output Power Limits

Table showing leveled output power limits across frequencies.

Leveled Output Power Limits (Continued)

Continued table of leveled output power limits across frequencies.

Adjustments (N5183A Only)

Automated Performance Verification Tests

Lists automated tests to confirm warranted specifications.

Table 4-5 Automated Performance Verification Tests

Table detailing automated performance verification tests by model.

Table 4-5 Automated Performance Verification Tests (Continued)

Continued table detailing automated performance verification tests.

Performance Verification

Overview of procedures to verify signal generator electrical performance.

Safety and Regulatory

General Safety Considerations

Provides general safety guidelines applicable to signal generators.

Lithium Battery Disposal

Information on the proper disposal of lithium batteries.

Assistance

Contact information for product maintenance and customer assistance.

Certification

Certifies product specifications met at shipment and calibration traceability.

Instrument History

How to Use this Chapter

Explains how to use this chapter to document changes in N518xA signal generators.

September 2009

Details changes and firmware releases from September 2009.

January 2009 (N5161A/62A/81A/82A/83A only)

Details changes and firmware releases from January 2009.

August 2008 (N5161A/62A/81A/82A/83A only)

Details changes and firmware releases from August 2008.

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