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Agilent Technologies Z5623A manual Troubleshooting the Front Panel Board

Models: Z5623A

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Troubleshooting

Troubleshooting the Front Panel Board

Turn the instrument power on and check the following:

•Check the condition of each of the switching paths by issuing commands to switch each of the paths to either the transmission or reflection path. Ensure that the LCD indicates the appropriate path.

•If the LCD indicates a wrong path, the problem can lie with either the front panel board or the main switch board. Measure the RF path to determine where the problem is.

•Ensure that the front panel washers between the board and front panel assembly are present. Missing washers can cause erratic LCD behavior.

•If the LCD does not display the proper path, check to see if the RF path has indeed been switched. If the problem lies with the front panel board, replace it.

Troubleshooting the Controller and Switch Driver Boards

Turn the instrument power on. Check the condition of each of the switching paths by issuing commands to switch each of the paths to either the Reflection or Transmission path. Check each of the RF paths for connection. If an RF path is not connected to the necessary port or terminated in 50 Ω, replace the controller and switch driver board.

8 -6	Agilent Technologies Z5623A Option H48

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Agilent Technologies Z5623A Troubleshooting the Front Panel Board, Troubleshooting the Controller and Switch Driver Boards

Contents

Agilent Technologies Z5623A Option H48 Manufacturing Part Number Z5623-90016 JuneWarranty Statement DFARS/Restricted Rights NoticeSafety Notes Page Contents Calibrating the Network Analyzer Measuring Multiport Devices Contacting Agilent Instrument Description Typical Equipment Setup OverviewSpecifications Parameter Specification Guaranteed PerformanceAgilent Z5623A Option H48 Guaranteed Performance Specs Parameter Typical Performance Typical PerformanceAgilent Z5623A Option H48 Typical Performance Specs Electrical Requirements Environmental RequirementsOperating Environment Non-Operating Storage ConditionsGeneral Characteristics WeightCabinet Dimensions Miscellaneous CharacteristicsShipping Cleaning and Shipping InstructionsCleaning Installation Description Agilent Part Number Quantity Accessories Supplied with Z5623A Option H48Checking the Shipment Description Model Or Part Number Quantity Recommended Additional EquipmentRecommended Equipment Not Supplied With Test Set Familiarization with Safety Requirements Electrical PreparationsElectrical Preparations Power Cables Environmental Preparations Ventilation Clearance RequirementsExample of an Antistatic Workstation Front Panel Front Panel FeaturesTest Set Familiarization Port Connection Status LCD Rear Panel Features Rear PanelLine Fuse Equation Setting the Gpib Address of the Test SetGpib Address Switches Length Purpose Connecting and Turning on the Test SetRF Cables Connecting Network Analyzer to Test Set Detailed Equipment Connection Diagram Connecting and Turning on the Test Set Using the Network Analyzer to Preparing the Analyzer to Control the Test Set System MenuSICL/GPIB Window PNA DeskTop Interactive Control windowUser Controller Window Manual Control Window How to Send a Manual Command StepCommon Errors in Manual Commands This section explains several common errorsCommand List of Gpib CommandsTest Port Commands Connection Path Ooooo Loool Restoring the Analyzer to its Normal Configuration Disaster Recovery Malfunctioning Command WindowSymptoms Recovery ProcedureNetwork Analyzer Screen With Four Applications Running 10 Analyzer Screen After Right-Click On My Computer Icon 12 Hardware Tab In System Properties Window 13 Device Manager Window Malfunctioning Network Analyzer 15 Gpib Device Disabling MessageCalibrating the Network Performing the Calibration Calibrating the Network AnalyzerCalibration Menu on Network Analyzer Cal Type Window When It Is First Opened Electronic Calibration Window 10 Cal Wizard Window After Cal Is Complete Renaming the Calibration File 11 My Computer Window12 Root Directory of the C Drive 14 C\Program Files\Agilent Directory 16 Directory Containing Cal Files 18 Cal File Highlighted 19 Preparing to Rename the Cal File 20 The Cal File After It Has Been Renamed Name of Calibration FileMethod 1. Calibration File Is Not On Quick Recall List How to Recall a CalibrationRecalling and Examining Calibrations 22 File Recall Window Correction On/Off button How to Turn a Calibration On and OffMethod 2. Calibration File Is On Quick Recall List 25 Calibration Turned On How to Examine the Properties of a Calibration 27 Calibration Properties ButtonPerformance Verification Measurement Band KHz 1.3 GHz Setting Test LimitsEquation 5-1 How to Set Test Limits Parameter Specification Measurement Test Limit Uncertainty SetTest Strategy Insertion Loss Return LossCrosstalk Test Name File Name Setting Up Limit TestingLimit Test Files Specifying Measurement Type, Title, and Scaling Limit Testing for Insertion LossRecalling the Calibration Title... Button Title Entry Window With Insertion Loss Entered Scale Window With Default Values Setting Up the Limit Table Limit Test... ButtonEmpty Limit Table Limit Table Entries for Insertion Loss 11 Completed Limit Table for Insertion LossTurning On Limit Lines and Limit Testing 12 Turning On Limit Testing and Limit Line Display14 Save As... Button 15 Save As... Window 17 Insertion Loss Test Setup, Cal File Recalled Checking the Limit Test File18 Insertion Loss Test Setup, Limit Test File Recalled Limit Testing for Return Loss Port Active 19 Title Entry Window With Return Loss Port Active EnteredLimit Table Entries for Return Loss Port Active Segment Beginning Ending Number Type Stimulus Response22 Return Loss Port Active Limit Test On ECal Module Saving the Limit Test File Setting Up Limit Testing Limit Testing for Return Loss Port Off Recalling the Port Active Limit Test FileSpecifying the Title Limit Table Entries for Return Loss Port Off24 Completed Limit Table for Return Loss Port Off Recalling the Limit Test FileLimit Testing for Crosstalk Specifying Output Power26 Power Window with Default Values Specifying if Bandwidth and Averaging 28 The if Bandwidth... Button30 if Bandwidth Window with Value Desired for Crosstalk 32 Average Window with Default Settings 34 The Status Bar Button Setting Up Limit Testing 36 The Scale... Button Limit Table Entries for Crosstalk 38 Completed Limit Table for CrosstalkTurning On Limit Lines and Limit Testing Verifying Return Loss and Insertion Loss Specifications Measurements Using The Reflection PortMeasurements Using The Transmission Port Pass/Fail Test Results For Insertion Loss And Return Loss 40 Setup for Measuring Crosstalk of Test Set Verifying Crosstalk SpecsPass/Fail Test Results for Crosstalk Test Ports ResultMeasuring Multiport Devices Calibrating the Test System Calibrating the Test System Calibrating the Test System Advanced Topics Using an External Computer to Control the Test Set Gpib QueriesGpib Queries Query What the test set sends in responseSwitch Count Using Rocky Mountain Basic RMBUsing Quick Basic or Visual Basic LanguagesUsing Hpvee HpibEolhHpib7,,0 disable EOLUsing National Instruments Visa Using the Control Lines Connector Control Line Commands for 9-Pin ConnectorSuggested External Circuitry Control LinesSwitch Driver Circuit For Use With Control Lines Connector Adjustable Voltage Regulator Circuit Using the Control Lines Connector Service Adjustments Z5623A Option H48 Block DiagramSystem Theory A1 Power Supply TheoryTheory of Operation A4 Front Panel Display Theory A2 Controller and A3 Switch Driver Board TheoryConnector Replacement Troubleshooting Power Supply Problems TroubleshootingGeneral Troubleshooting Notes Troubleshooting the Front Panel Board Troubleshooting the Controller and Switch Driver BoardsReference Description Part Number Quantity Designator List of Replaceable PartsReplaceable Parts for Z5623A Option H48 Replaceable Parts for Z5623A Option H48 Safety and Regulatory Information Safety Information Safety Information Instrument Markings Regulatory Information Statement of Compliance with IECDeclaration of Compliance with German Noise Requirements Laermangabe Noise DeclarationRegulatory Information Contacting Agilent Contacting Agilent AmericasAsia Pacific and Japan Europe