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Agilent Technologies 35670-90066 manual To adjust the ADC gain, offset and reference

Models: 35670-90066

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Agilent 35670A	Adjusting the Analyzer
	To adjust the ADC gain, offset and reference

To adjust the ADC gain, offset and reference

This procedure adjusts the second-pass gain, the first-pass offset, and the reference voltage for the ADC on the A5 Analog assembly. This prevents nonlinear Analog-to-Digital Converter (ADC) operation near the Digital-to-Analog Converter (DAC) transition levels.

Equipment Required: Oscilloscope

1:1 Oscilloscope Probe

Capacitive Load

BNC-to-BNC Cable

•Set the power switch to off ( O ).

•Connect the capacitive load (from the service kit) to the oscilloscope input. Connect the 1:1 oscilloscope probe to the capacitive load. Attach the probe to A5 TP400 and the probe ground clip to the instrument chassis.

•Connect the oscilloscope’s external trigger connector to the analyzer’s SOURCE connector using a BNC cable.

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Agilent Technologies 35670-90066 manual To adjust the ADC gain, offset and reference

Contents

Agilent 35670A Service Guide Agilent Part Number Printed in MalaysiaPrint Date: March The Agilent 35670A at a Glance Front Panel Agilent 35670A Front Panel The Agilent 35670A at a Glance Rear Panel Agilent 35670A Rear Panel Plot/Print menusPlot/Print menu ENVIRONMENTAL CONDITIONS BEFORE APPLYING POWERSaftey Summary GENERALFUSES DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHEREDO NOT REMOVE THE INSTRUMENT COVER Both direct and alternating current Safety SymbolsWarning, risk of electric shock Alternating currentAgilent 35670A AccessoriesSupplied Accessories Available AccessoriesIn This Book 1Specifications Table of Contents2Preparing the Analyzer for Use 3Verifying SpecificationsTo set up the tach function test To set up the anti-aliasfilter testTo set up the input coupling test To set up the harmonic distortion test4Troubleshooting the Analyzer 6Replacing Assemblies 5Adjusting the AnalyzerInstrument Covers and Handles 7Replaceable PartsAssembly Covers and Brackets Front Panel Parts Ordering Information Assemblies CablesOverall Instrument Description A1 Input A2 Input 8Circuit DescriptionsA98 Power Supply A99 Motherboard A100 Disk Drive Option UK4 Microphone Adapter and Power Supply9Voltages and Signals 10Internal Test Descriptions11Backdating 12Quick Reference Index Specifications Abbreviations SpecificationsFrequency Agilent 35670AFrequency Single Channel Amplitude SpecificationsSingle Channel Amplitude FFT Dynamic Range Single Channel Phase Input NoiseWindow Parameters Agilent 35670A Cross Channel PhaseCross Channel Amplitude SpecificationsInput Time Domain TriggerAgilent 35670A Tachometer Agilent 35670A Source OutputDigital Interfaces General Specifications Max Order⋅ Max RPM Order Tracking — Option 1D0Arbitrary Waveform Source—Option1D4 Swept Sine Measurements —Option1D2Real Time Octave Analysis — Option 1D1 f i+1n = 1, 3 or Instrument Recommended Test EquipmentCritical Specifications Recommended Test EquipmentSuggested Assembly for Series Resistor Schematic and Parts List for Notch Filter Recommended Model Critical SpecificationsAdditional Recommended Test Equipment InstrumentPreparing the Analyzer for Use DC Power Requirements AC Power RequirementsPreparing the Analyzer for Use DC Power Cable and Grounding Requirements AC Power Cable and Grounding RequirementsPreparing the Analyzer for Use Preparing the Analyzer for Use subject the operator to lethal voltagesTo do the incoming inspection •Set the analyzer’s power switch to on other excessive moisture To install the analyzerTo connect the analyzer to a dc power source •Turn on the dc power source To change the fuses Cable Description To connect the analyzer to a serial deviceTo connect the analyzer to a parallel device Part NumberTo connect the analyzer to an GPIB device To connect the analyzer to an external monitor •Set the analyzer’s power switch to on lEXT MON ON OFF •Set the power switch to off O To connect the optional keyboardTechnologies keyboards Agilent 35670A To connect the microphone adapterStandard 2 channel Agilent 35670A Optional 4 channelRemove the power cord To clean the screenTo store the analyzer •Set the power switch to off OTo transport the analyzer If the analyzer will not power up Check that the cable connections are not loose Verifying Specifications Overview Verifying SpecificationsRecommended Test Equipment Features of the ProgramTest Duration Calibration CycleOperation Verification and Performance Tests Program Controlled Test EquipmentMeasurement Uncertainty Performance Tests Operation Verification TestsSpecifications and Performance Tests SpecificationPerformance Test ‘’To run the program in manual mode’’ To load the program•‘’To run the program in semiautomated mode’’ •‘’To run the program without a printer’’To run the program in semiautomated mode • Press the following keys to start the test To run the program without a printer •Press the following keys•Press the following keys to start the test in the selected test record To run the program in manual mode Agilent 35670A To set up the self testVerifying Specifications Performance Test and Operation VerificationVerifying Specifications To set up the dc offset test1 2 ch 1 4 ch1 2 ch To set up the noise testVerifying Specifications To set up the noise testTo set up the spurious signals test 1 2 ch1 4 ch To set up the amplitude accuracy test 1 2 ch1 4 ch To set up the flatness test 1 2 ch1 4 ch To set up the amplitude linearity test 1 2 ch1 4 ch To set up the A-weightfilter test 1 2 ch1 4 ch To set up the channel match test 1 2 ch1 4 ch 1 2 ch To set up the frequency accuracy testVerifying Specifications To set up the frequency accuracy testTo set up the anti-aliasfilter test 1 2 ch1 4 ch To set up the input coupling test 1 2 ch1 4 ch To set up the harmonic distortion test 1 2 ch1 4 ch Verifying Specifications 2 ch2A 2 ch 4 chAgilent 35670A Verifying SpecificationsTo set up the harmonic distortion test 4 chTo set up the intermodulation distortion test 1 2 ch1 4 ch To set up the intermodulation distortion test 1A 2 ch1A 4 ch Verifying SpecificationsTo set up the cross talk test 2 2 ch1 2 ch 1 4 ch 3 2 ch2 4 ch To set up the cross talk testTo set up the cross talk test 3 4 ch4 4 ch Verifying Specifications5 4 ch To set up the cross talk testAgilent 35670A To set up the single channel phase accuracy test 1 2 ch1 4 ch To set up the external trigger test 1 2 ch1 4 ch 1A 4 ch Verifying SpecificationsTo set up the external trigger test 1A 2 chTo set up the tach function test 1 2 ch1 4 ch 1A 4 ch Verifying SpecificationsTo set up the tach function test 1A 2 ch1 4 ch To set up the input resistance testVerifying Specifications To set up the input resistance test3 4 ch Verifying SpecificationsTo set up the input resistance test 2 4 chTo set up the ICP supply test 1 2 ch2 2 ch 3 2 ch 4 2 chVerifying Specifications To set up the ICP supply test4 4 ch 6 4 chTo set up the ICP supply test 3 4 chTo set up the ICP supply test 7 4 ch8 4 ch Verifying SpecificationsTo set up the source amplitude accuracy test 1 2 ch1 4 ch To set up the source output resistance test 1 2 ch2 2 ch 1 4 ch Verifying SpecificationsTo set up the source output resistance test 3 2 chTo set up the source dc offset test 1 2 ch1 4 ch 1 2 ch To set up the source flatness testVerifying Specifications To set up the source flatness testTo set up the source distortion test 1 2 ch1 4 ch ITM_35670A Main Menu Descriptions Start Testing Menu Descriptions Test Configuration Menu Descriptions Equipment Configuration Menu Descriptions Title Page Menu Descriptions Performance Test Measurement UncertaintyUsing Recommended Test Using Other Test EquipmentVerifying Specifications Agilent 35670AMeasurement Uncertainty Measurement Using Other Test EquipmentEquipment MeasurementTest Instruments Used Performance Test Record - Two ChannelVerifying Specifications Self TestDC Offset NoiseTest Date:___/___/___ Spurious SignalsVerifying Specifications Agilent4 of Verifying SpecificationsPerformance Test Record - Two Channel Test Date:___/___/___5 of Verifying SpecificationsAgilent 35670A Test Date:___/___/___Verifying Specifications Spurious Signals continuedAmplitude Accuracy Flatness7 of Amplitude LinearityAgilent 35670A Test Date:___/___/___Test Date:___/___/___ A-WeightFilterChannel Match Verifying SpecificationsAgilent 35670A Frequency AccuracyAnti-AliasFilter Input Coupling10 of Harmonic DistortionVerifying Specifications Test Date:___/___/___Test Date:___/___/___ Intermodulation DistortionCross Talk Agilent 35670AVerifying Specifications Single Ch Phase AccuracyExternal Trigger Tach Function option D01 onlySource Output Resistance Input ResistanceICP Supply Source Amplitude AccuracyVerifying Specifications Source DC OffsetSource Flatness Source DistortionTest Instruments Used Performance Test Record - Four ChannelNoise Verifying SpecificationsSelf Test DC OffsetAgilent 35670A Spurious SignalsSpurious Signals continued Verifying SpecificationsVerifying Specifications Performance Test Record - Four ChannelFour Ch, 1600 Hz Start, Ch Verifying Specifications Agilent 35670AFour Ch, 14400 Hz Start, Ch Four Ch, 20800 Hz Start, Ch Spurious Signals continuedVerifying Specifications Performance Test Record - Four ChannelTest Date:___/___/___ Verifying SpecificationsAmplitude Accuracy Agilent 35670AAmplitude Accuracy continued −11 dBVrms, 51.2 kHz, One Ch, Ch Verifying SpecificationsFlatness Agilent 35670ATest Date:___/___/___ Verifying SpecificationsAmplitude Linearity Performance Test Record - Four ChannelMeasurement A-WeightFilterVerifying Specifications Agilent 35670ATwo Ch, 2/1, 7 dBV FS Mag Verifying SpecificationsChannel Match Performance Test Record - Four ChannelVerifying Specifications Agilent 35670APerformance Test Record - Four Channel Input Coupling Verifying SpecificationsFrequency Accuracy Anti-AliasFilterTest Date:___/___/___ Verifying SpecificationsHarmonic Distortion Agilent 35670ATest Date:___/___/___ Verifying SpecificationsIntermodulation Distortion Performance Test Record - Four ChannelAgilent 35670A Single Ch Phase AccuracyVerifying Specifications Cross TalkInput Resistance Verifying SpecificationsExternal Trigger Tach Function option D01 onlyAgilent 35670A Verifying SpecificationsSource Amplitude Accuracy Source Output ResistanceSource Distortion Verifying SpecificationsSource DC Offset Source FlatnessTest Instruments Used Operation Verification Test Record - Two ChannelNoise Verifying SpecificationsSelf Test DC OffsetOperation Verification Test Record - Two Channel Spurious SignalsVerifying Specifications Agilent 35670AOperation Verification Test Record - Two Channel Verifying SpecificationsTest Date:___/___/___ 4 ofTest Date:___/___/___ Spurious Signals continuedVerifying Specifications Agilent 35670ATest Date:___/___/___ Verifying SpecificationsAmplitude Accuracy Operation Verification Test Record - Two ChannelAmplitude Linearity A Weight FilterVerifying Specifications FlatnessOperation Verification Test Record - Two Channel Verifying SpecificationsChannel Match Agilent 35670ATach Function option D01 only Single Ch Phase AccuracyVerifying Specifications Frequency AccuracySource Flatness Verifying SpecificationsICP Supply Source Amplitude AccuracyTest Instruments Used Operation Verification Test Record - Four ChannelNoise Verifying SpecificationsSelf Test DC Offset3 of Spurious SignalsAgilent 35670A Test Date:___/___/___Operation Verification Test Record - Four Channel Verifying SpecificationsTest Date:___/___/___ 4 of5 of Verifying SpecificationsAgilent 35670A Test Date6 of Spurious Signals continuedVerifying Specifications Test Date:___/___/___Test Date:___/___/___ Verifying SpecificationsAmplitude Accuracy Agilent 35670A8 of Verifying SpecificationsAmplitude Accuracy continued Test Date:___/___/___9 of FlatnessAgilent 35670A Test Date:___/___/___10 of Verifying SpecificationsAmplitude Linearity Test Date:___/___/___Test Date:___/___/___ A Weight FilterVerifying Specifications Agilent 35670ATest Date:___/___/___ Verifying SpecificationsChannel Match Agilent 35670ATest Date:___/___/___ Verifying SpecificationsFrequency Accuracy Agilent 35670AICP Supply Single Ch Phase AccuracyVerifying Specifications Tach Function option D01 onlyAgilent 35670A Source Amplitude AccuracySource Flatness Source DistortionPage Troubleshooting the Analyzer Safety Considerations Troubleshooting the AnalyzerEquipment Required Troubleshooting HintsHow to troubleshoot the analyzer SymptomTroubleshooting Test To perform initial verification Probable Faulty Assembly SymptomPage Test Location Signal NameProbable Faulty Assembly 1 MΩ 10:1 probeTo perform initial verification Troubleshooting the AnalyzerAgilent 35670A A7 Component Locator, Circuit SideSignal Name Step 7. Check signals required for power upSignal Name Probable Faulty AssemblyTo troubleshoot the power supply •Set the power switch to off O •Remove the A7 CPU assembly •Disconnect the fan cable from A99 P90 Step To troubleshoot power-upfailures• Set the power switch to on l power-uptest result to the following table• Set the power switch to off O ~Time LEDs Power-onLEDsBinary HexaTo troubleshoot CPU, memory, and buses failures Hexadecimal G Set the power switch to off OProbable Faulty Assembly Binary4-20 A7 Component Locator, Circuit Side• Set the power switch to off O To troubleshoot display failures Page Symptom Probable Faulty AssemblyVertical and horizontal scanning is occurring To troubleshoot IIC bus failures • Set the power switch to on l • Attach a logic probe to A7 P7 pin 2 SCLLEDs, and the display G• Attach the logic probe to A7 P7 pin 1 SDA •Set the power switch to off O To troubleshoot fast bus failures Troubleshooting the Analyzer To troubleshoot fast bus failuresAgilent 35670A To perform self tests using a BNC cable• Set the power switch to on l following table displayed‘’To troubleshoot self-testlockup failures.’’ 4-40 ‘’To troubleshoot intermittent failures.’’Probable Faulty Assembly Adjustment Troubleshooting TestFailing Self Test Failing Self Test Probable Faulty AssemblyAdjustment Troubleshooting TestTroubleshooting Test Self-TestTroubleshooting Guide continuedProbable Faulty Assembly AdjustmentNext Test Probable FaultyAssembly FailureG• Set the power switch to on l To troubleshoot self-testlockup failuresG• Press the following keys Page •Set the power switch to on l To troubleshoot intermittent failures•Press the following keys To troubleshoot performance test failures Troubleshooting Test Troubleshooting the AnalyzerProbable Faulty Assembly AdjustmentTo troubleshoot performance test failures Troubleshooting the AnalyzerFailing Performance Test Troubleshooting Guide Spurious signalsTo troubleshoot source and calibrator failures • Connect the voltmeter to A5 TP3 assembly isprobably faulty Step 2. Check the dc offset• Press the following keys Step 4. Check the calibrator output G Set the power switch to off O•Set the power switch to on l Troubleshooting the AnalyzerSource Troubleshooting the AnalyzerSystem Utility Input•Press the following keys System Utility To troubleshoot input and ADC failuresProbable Faulty AssemblyTo troubleshoot input and ADC failures Troubleshooting the AnalyzerPage G• Set the power switch to on l G• Set the power switch to off O To troubleshoot distortion failures To troubleshoot disk drive failures The read/write •Press the following keys To troubleshoot auto-rangefailures•Set the power switch to on l •Press the following keys•Press the following keys To troubleshoot DIN connector failures To troubleshoot trigger failures G• Set the power switch to on l•Set the frequency synthesizer as follows The analyzer should now trigger CHANNEL 3 option AY6 onlyCHANNEL 4 option AY6 only mS SG• Set the power switch to off O •If the signal at A5 TP 204 is toggling, the A6 Digital assembly is probably faulty G• Set the power switch to off O To troubleshoot memory battery failures Troubleshooting the Analyzer To troubleshoot memory battery failuresAgilent 35670A G• Set the power switch to on l To troubleshoot tachometer failures • Press the following keys Page Adjusting the Analyzer Component Adjusting the AnalyzerAdjustment Assemblypotentially dangerous voltages Safety ConsiderationsAdjusting the Analyzer Equipment RequiredRemote Operation AdjustmentGPIB Code To adjust the frequency reference •Set the power switch to off O•Set the power switch to on Equipment Required: Multimeter To adjust the sourceAdjusting the Analyzer To adjust the sourceTo adjust the ADC gain, offset and reference •Set the power switch to off O •Set the power switch to on•Set the oscilloscope as follows •Press the following keys Equipment Required: None To adjust the input dc offsetG• Set the power switch to on G• Set the power switch to on Equipment Required BNC-to-BNCCable To adjust common mode rejection•Set the power switch to off O •Set the power switch to off O •Press the the following keys To adjust filter flatness Adjusting the AnalyzerTo adjust filter flatness G• Set the power switch to on G• Set the power switch to on •Press the following keys To adjust the display voltage Adjusting the Analyzer To adjust the display voltageAgilent 35670A Replacing Assemblies Replacing Assemblies What to do before replacing the CPU assembly Agilent 35670AReplacing Assemblies What to do after replacing an assembly A7 CPU Assembly ReplacedRequired Adjustment Required Performance TestTo remove cover To remove cover2 Slide the cover straight up Replacing AssembliesTo remove rear panel Replacing Assemblies To remove front panel2 Remove assembly retainer bracket 1 Remove cover see ‘’To remove cover’’Agilent 35670A Replacing AssembliesTo remove front panel 4 Slide the disk drive back and lift up To remove disk drive1 Remove cover see ‘’To remove cover’’ 2 Disconnect the disk drive cableTo remove CPU To remove NVRAM To remove NVRAM1 Remove A7 CPU assembly see ‘’To remove CPU’’ Replacing AssembliesTo remove memory To remove memoryTo remove power supply Replacing Assemblies 6 Lift the A98 Power Supply assembly straightTo remove power supply Agilent 35670AMotherboard To remove motherboard3 Remove assembly retainer bracket 4 Unplug all assemblies from the A99To remove motherboard To remove dc-dcconverter Replacing AssembliesTo remove dc-dcconverter Replaceable Parts Replaceable Parts Ordering InformationNon-ListedParts Mfr Name Direct Mail Order SystemCode Numbers Mfr NoAssemblies Replaceable PartsAssemblies Number Agilent 35670AAgilent Part DescriptionCables Replaceable PartsCables Instrument Covers and Handles Agilent 35670AReplaceable Parts Assembly Covers and Brackets Assembly Covers and BracketsReplaceable Parts Agilent 35670A Front Panel PartsRear Panel Parts Replaceable PartsRear Panel Parts Chassis Parts Agilent 35670AChassis Parts Screws, Washers, and Nuts Screws, Washers, and NutsMiscellaneous Parts Replaceable PartsParts Option UK4 PartsAgilent 35670A PartsReplaceable Parts Agilent 35670AOption UK4 Parts Circuit Descriptions Overall Instrument Description Circuit DescriptionsOverall Block Diagram Two Channel Overall Block Diagram Circuit DescriptionsOverall Instrument Description Overall Instrument Description Four Channel Overall Block DiagramAgilent 35670A Circuit DescriptionsA1 Input Agilent 35670A A1 InputDC Offset DAC Agilent 35670A A1 Input Block Diagram: ChannelA1 Input Circuit DescriptionsA1 Input A1 Input Block Diagram: Channel 1 continuedAgilent 35670A Circuit DescriptionsA1 Input Block Diagram: Channel A1 InputAgilent 35670A A1 Input A1 Input Block Diagram Channel 2 continuedAgilent 35670A Circuit DescriptionsA2 Input Circuit DescriptionsA2 Input Agilent 35670A A2 InputDC Offset DAC A2 Input Block Diagram: Channel 1 or Channel A2 InputAgilent 35670A Agilent 35670A Circuit DescriptionsA2 Input Agilent 35670A A2 Input Block Diagram: Channel 3 or ChannelA2 Input Circuit DescriptionsAgilent 35670A Circuit DescriptionsA2 Input Channel 3 Track & Hold Channel 4 Track & Hold A5 AnalogChannel Switch 1st Pass Circuit ADC Controller Channel 1 Track & Hold Channel 2 Track & HoldA5 Analog A5 Analog Block Diagram: ADC and TriggerAgilent 35670A Circuit Descriptions±6.2 Voltage Reference Agilent 35670A A5 AnalogCircuit Descriptions Local Oscillator A6 Digital• ADC timing and synchronization signals TriggerA6 Digital A6 Digital Block DiagramAgilent 35670A Circuit DescriptionsFIFO Controller Circuit DescriptionsAgilent 35670A A6 DigitalA7 CPU Agilent 35670A A7 CPU Block DiagramCircuit Descriptions A7 CPUA7 CPU Block Diagram: Interface •A1 or A2 Input •A5 Analog •SCL serial clock •SDA serial data Plot/Print A8 MemoryLocal/Gpib System UtilityAgilent 35670A A8 MemoryROM Address A9 NVRAM A9 NVRAM Block Diagramnonvolatile RAM A10 Rear Panel Agilent 35670A A10 Rear Panel Block DiagramCircuit Descriptions A10 Rear PanelA11 Keyboard Controller Block Diagram A11 Keyboard ControllerA12 BNC Circuit DescriptionsA12 BNC A22 BNC A13 Primary KeypadA14 Secondary Keypad A15 Primary KeypadA90 Fan A98 Power SupplyA102 DC-DCConverter A99 MotherboardA100 Disk Drive A101 DisplayOption UK4 Microphone Adapter and Power Supply Option UK4 Microphone Adapter and Power Supply Agilent 35670ACircuit Descriptions Page Voltages and Signals Voltages and Signals Describes signals routedSection Title Assembly Locations and Connections Assembly Locations and ConnectionsAssembly Locations Voltages and SignalsAgilent 35670A Voltages and SignalsAssembly Locations and Connections Assembly Connections for Two Channel AnalyzerAgilent 35670A Assembly Connections for Four Channel AnalyzerVoltages and Signals Assembly Locations and ConnectionsPower Supply Voltage Distribution Voltages and SignalsPower Supply Voltage Distribution A2 Input A1 Input⇔This signal is bidirectional A7 J3 PinsA8 P1 Pins •This assembly uses the signalPA10 Signal NameAgilent 35670A A8 MemoryBD16 —31 Agilent 35670A A8 MemorySIZE0 — SIZE1 A9 NVRAM PinsA8 P2 BASn Signal NameA10 Rear Panel GPIBSignal Name A10 Rear Panel Serial PortSignal Name Agilent 35670ASignal Name Parallel PortExternal Trigger Input DIN KeyboardSource Output Tachometer InputSignal Name A11 Keyboard ControllerAgilent 35670A A11 Keyboard Controller assemblyA12 BNC The A12 BNC assembly is only used in two channel analyzers. The A12 BNC assembly routes the signals connected to the Channel 1 BNC connector and Channel 2 BNC connector to the A1 Input assembly. The A12 BNC assembly also routes the source signal from the A5 Analog assembly to the Source BNC connector. The signal connected to Channel 1 should be between 0.19531 Hz to 102.4 kHz in single channel mode and between 0.097656 Hz to 51.2 kHz in two channel mode. The signal connected to Channel 2 should be between 0.097656 to 51.2 kHz. For both channels, the signal’s amplitude range must be between +27 dBVrms and –51dBVrms for full scale measurements. The source output signal can be random noise, burst random noise, periodic chirp, burst chirp, pink noise, or fixed sine. The amplitude range of the source output is ±5 VpkSignal Name A13 Primary KeypadA11 Location OVLDAn HRNGBnHRNGCn HRNGDnCOL0 - COL2 A14 Secondary KeypadVoltages and Signals A22 BNCA22 BNC Connector Pin Number Signal NameAssembly Using Signal Motherboard ConnectorA99 Motherboard Agilent 35670AAgilent 35670A Voltage Voltages and SignalsAssembly Using Voltage A99 MotherboardA10MHZ Agilent 35670AEXTRGIN Voltages and SignalsAgilent 35670A A99 MotherboardFSELAn Agilent 35670ALPFCLK Voltages and SignalsAgilent 35670A A99 MotherboardSRCCLOCK Agilent 35670AA7 P3 Voltages and SignalsA100 Disk Drive A100 Disk DriveAgilent 35670A A100 Disk DriveDISKINn Signal Name A101 DisplayHSYNCELn A102 PinsA102 DC-DCConverter A7 P2Page Internal Test Descriptions High-levelSubtests Power-onTest DescriptionInternal Test Descriptions Low-levelSubtestsPower-onTest Messages Binary to Hexadecimal10-3 Power-onTest Description Power-onTest MessagesInternal Test Descriptions 10-5 Calibration Routine DescriptionDC-OffsetTables and Frequency Correction Curves Internal Test DescriptionsCalibration Routine Description Viewing the Calibration Correction Curves Calibration Error MessagesSystem Utility Inst ModeInput Disp FormatFault Log Messages Self-TestDescriptions SELF TEST FUNCTIONL TESTS ALL10-10 Functional Tests All Self-TestGroup Agilent 35670ASelf Tests that Perform a Measurement Individual Self-TestDescriptions DISTORTN INPUT TRIGGER OFFSET SERIAL PORT Self-TestMenu Map and GPIB Commands GPIB CommandSelf Test GPIB Command Self TestSELF TEST Page Backdating Backdating Quick Reference Quick Reference Assembly Locations Agilent 35670AQuick Reference Assembly Connections for Two Channel Analyzer Quick ReferenceAgilent 35670A Assembly Connections for Four Channel Analyzer Agilent 35670AQuick Reference Two Channel Overall Block Diagram Quick ReferenceAgilent 35670A Four Channel Overall Block Diagram Agilent 35670AQuick Reference A1 Input Block Diagram: Channel Quick ReferenceAgilent 35670A A1 Input Block Diagram: Channel 1 continued Agilent 35670AQuick Reference A1 Input Block Diagram: Channel Quick ReferenceAgilent 35670A A1 Input Block Diagram: Channel 2 continued Agilent 35670AQuick Reference A2 Input Block Diagram: Channel 1 or Channel Quick ReferenceAgilent 35670A Quick Reference Agilent 35670AA2 Input Block Diagram: Channel 2 or Channel Quick ReferenceAgilent 35670A Quick Reference Agilent 35670AA5 Analog Block Diagram: ADC and Trigger Quick ReferenceAgilent 35670A Quick Reference Agilent 35670AA6 Digital Block Diagram Quick ReferenceAgilent 35670A A7 CPU Block Diagram Agilent 35670AQuick Reference A7 CPU Block Diagram: Interface Quick ReferenceAgilent 35670A Reset Logic Agilent 35670AQuick Reference A8 Memory Block Diagram Quick ReferenceAgilent 35670A A9 NVRAM Block Diagram Agilent 35670AQuick Reference A10 Rear Panel Block Diagram Quick ReferenceAgilent 35670A A11 Keyboard Controller Block Diagram Agilent 35670AQuick Reference A98 Power Supply Block Diagram Quick ReferenceAgilent 35670A troubleshooting Indexbattery battery backed memoryfront panel CPU assemblyfrequency adjustment troubleshootingcommon mode adjustment signals 8-29,initial verification troubleshooting input assemblytroubleshooting battery memory assemblysignal descriptions troubleshooting10-12 9-2310-17 3-137-12 hints using self testsvoltages power supply distribution washers, part numbersGuide to Agilent 35670A Documentation If you are thinking aboutAnd you want to Then readNeed Assistance? About this edition October 2000: Rebranded for Agilent TechnologiesJuly 1994: Previous edition