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Agilent Technologies 35670-90066 manual Symptom, Probable Faulty Assembly

Models: 35670-90066

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Page 182

Troubleshooting the Analyzer	Agilent 35670A
To perform initial verification

Step 4. If the analyzer powers up normally with no error messages (see the following

Gillustration), the screen is continually updating, but the analyzer does not respond to key presses, use the following table to determine the probable faulty assembly.

Symptom	Probable Faulty Assembly


SYSTEM keys function but MARKER, DISPLAY,	A13 or A15 Primary Keypad
MEASUREMENT, or number keys do not function correctly

MARKER, DISPLAY, MEASUREMENT, and number keys	A14 Secondary Keypad
function but SYSTEM keys do not function correctly

No keys function correctly	A11 Keyboard Controller

4-6

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Agilent Technologies 35670-90066 manual Symptom, Probable Faulty Assembly

Contents

Print Date: March Agilent 35670A Service GuideAgilent Part Number Printed in Malaysia The Agilent 35670A at a Glance Front Panel Agilent 35670A Front Panel The Agilent 35670A at a Glance Rear Panel Plot/Print menu Agilent 35670A Rear PanelPlot/Print menus GENERAL BEFORE APPLYING POWERSaftey Summary ENVIRONMENTAL CONDITIONSDO NOT REMOVE THE INSTRUMENT COVER FUSESDO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE Alternating current Safety SymbolsWarning, risk of electric shock Both direct and alternating currentAvailable Accessories AccessoriesSupplied Accessories Agilent 35670AIn This Book Table of Contents 1Specifications3Verifying Specifications 2Preparing the Analyzer for UseTo set up the harmonic distortion test To set up the anti-aliasfilter testTo set up the input coupling test To set up the tach function test4Troubleshooting the Analyzer 5Adjusting the Analyzer 6Replacing AssembliesOrdering Information Assemblies Cables 7Replaceable PartsAssembly Covers and Brackets Front Panel Parts Instrument Covers and HandlesOption UK4 Microphone Adapter and Power Supply 8Circuit DescriptionsA98 Power Supply A99 Motherboard A100 Disk Drive Overall Instrument Description A1 Input A2 Input11Backdating 12Quick Reference Index 9Voltages and Signals10Internal Test Descriptions Specifications Specifications AbbreviationsFrequency FrequencyAgilent 35670A Single Channel Amplitude Single Channel AmplitudeSpecifications FFT Dynamic Range Window Parameters Single Channel PhaseInput Noise Specifications Cross Channel PhaseCross Channel Amplitude Agilent 35670AInput Agilent 35670A Time DomainTrigger Tachometer Source Output Agilent 35670ADigital Interfaces General Specifications Order Tracking — Option 1D0 Max Order⋅ Max RPMSwept Sine Measurements —Option1D2 Arbitrary Waveform Source—Option1D4n = 1, 3 or Real Time Octave Analysis — Option 1D1f i+1 Recommended Test Equipment Recommended Test EquipmentCritical Specifications InstrumentSuggested Assembly for Series Resistor Schematic and Parts List for Notch Filter Instrument Critical SpecificationsAdditional Recommended Test Equipment Recommended ModelPreparing the Analyzer for Use Preparing the Analyzer for Use DC Power RequirementsAC Power Requirements Preparing the Analyzer for Use DC Power Cable and Grounding RequirementsAC Power Cable and Grounding Requirements subject the operator to lethal voltages Preparing the Analyzer for UseTo do the incoming inspection •Set the analyzer’s power switch to on To install the analyzer other excessive moistureTo connect the analyzer to a dc power source •Turn on the dc power source To change the fuses Part Number To connect the analyzer to a serial deviceTo connect the analyzer to a parallel device Cable DescriptionTo connect the analyzer to an GPIB device EXT MON ON OFF To connect the analyzer to an external monitor•Set the analyzer’s power switch to on l To connect the optional keyboard •Set the power switch to off OTechnologies keyboards Optional 4 channel To connect the microphone adapterStandard 2 channel Agilent 35670A Agilent 35670A•Set the power switch to off O To clean the screenTo store the analyzer •Remove the power cordTo transport the analyzer If the analyzer will not power up Check that the cable connections are not loose Verifying Specifications Verifying Specifications OverviewCalibration Cycle Features of the ProgramTest Duration Recommended Test EquipmentMeasurement Uncertainty Operation Verification and Performance TestsProgram Controlled Test Equipment Operation Verification Tests Performance TestsPerformance Test Specifications and Performance TestsSpecification •‘’To run the program without a printer’’ To load the program•‘’To run the program in semiautomated mode’’ •‘’To run the program in manual mode’’To run the program in semiautomated mode • Press the following keys to start the test •Press the following keys to start the test To run the program without a printer•Press the following keys in the selected test record To run the program in manual mode Performance Test and Operation Verification To set up the self testVerifying Specifications Agilent 35670A1 4 ch To set up the dc offset test1 2 ch Verifying SpecificationsTo set up the noise test To set up the noise testVerifying Specifications 1 2 ch1 4 ch To set up the spurious signals test1 2 ch 1 4 ch To set up the amplitude accuracy test1 2 ch 1 4 ch To set up the flatness test1 2 ch 1 4 ch To set up the amplitude linearity test1 2 ch 1 4 ch To set up the A-weightfilter test1 2 ch 1 4 ch To set up the channel match test1 2 ch To set up the frequency accuracy test To set up the frequency accuracy testVerifying Specifications 1 2 ch1 4 ch To set up the anti-aliasfilter test1 2 ch 1 4 ch To set up the input coupling test1 2 ch 1 4 ch To set up the harmonic distortion test1 2 ch 4 ch 2 ch2A 2 ch Verifying Specifications4 ch Verifying SpecificationsTo set up the harmonic distortion test Agilent 35670A1 4 ch To set up the intermodulation distortion test1 2 ch Verifying Specifications 1A 2 ch1A 4 ch To set up the intermodulation distortion test1 2 ch To set up the cross talk test2 2 ch To set up the cross talk test 3 2 ch2 4 ch 1 4 chVerifying Specifications 3 4 ch4 4 ch To set up the cross talk testAgilent 35670A 5 4 chTo set up the cross talk test 1 4 ch To set up the single channel phase accuracy test1 2 ch 1 4 ch To set up the external trigger test1 2 ch 1A 2 ch Verifying SpecificationsTo set up the external trigger test 1A 4 ch1 4 ch To set up the tach function test1 2 ch 1A 2 ch Verifying SpecificationsTo set up the tach function test 1A 4 chTo set up the input resistance test To set up the input resistance testVerifying Specifications 1 4 ch2 4 ch Verifying SpecificationsTo set up the input resistance test 3 4 ch2 2 ch To set up the ICP supply test1 2 ch To set up the ICP supply test 4 2 chVerifying Specifications 3 2 ch3 4 ch 6 4 chTo set up the ICP supply test 4 4 chVerifying Specifications 7 4 ch8 4 ch To set up the ICP supply test1 4 ch To set up the source amplitude accuracy test1 2 ch 2 2 ch To set up the source output resistance test1 2 ch 3 2 ch Verifying SpecificationsTo set up the source output resistance test 1 4 ch1 4 ch To set up the source dc offset test1 2 ch To set up the source flatness test To set up the source flatness testVerifying Specifications 1 2 ch1 4 ch To set up the source distortion test1 2 ch ITM_35670A Main Menu Descriptions Start Testing Menu Descriptions Test Configuration Menu Descriptions Equipment Configuration Menu Descriptions Title Page Menu Descriptions Using Other Test Equipment Measurement UncertaintyUsing Recommended Test Performance TestMeasurement Uncertainty Verifying SpecificationsAgilent 35670A Measurement Using Other Test EquipmentEquipment MeasurementPerformance Test Record - Two Channel Test Instruments UsedNoise Self TestDC Offset Verifying SpecificationsAgilent Spurious SignalsVerifying Specifications Test Date:___/___/___Test Date:___/___/___ Verifying SpecificationsPerformance Test Record - Two Channel 4 ofTest Date:___/___/___ Verifying SpecificationsAgilent 35670A 5 ofFlatness Spurious Signals continuedAmplitude Accuracy Verifying SpecificationsTest Date:___/___/___ Amplitude LinearityAgilent 35670A 7 ofVerifying Specifications A-WeightFilterChannel Match Test Date:___/___/___Input Coupling Frequency AccuracyAnti-AliasFilter Agilent 35670ATest Date:___/___/___ Harmonic DistortionVerifying Specifications 10 ofAgilent 35670A Intermodulation DistortionCross Talk Test Date:___/___/___Tach Function option D01 only Single Ch Phase AccuracyExternal Trigger Verifying SpecificationsSource Amplitude Accuracy Input ResistanceICP Supply Source Output ResistanceSource Distortion Source DC OffsetSource Flatness Verifying SpecificationsPerformance Test Record - Four Channel Test Instruments UsedDC Offset Verifying SpecificationsSelf Test NoiseVerifying Specifications Spurious SignalsSpurious Signals continued Agilent 35670AFour Ch, 1600 Hz Start, Ch Verifying SpecificationsPerformance Test Record - Four Channel Four Ch, 14400 Hz Start, Ch Verifying SpecificationsAgilent 35670A Performance Test Record - Four Channel Spurious Signals continuedVerifying Specifications Four Ch, 20800 Hz Start, ChAgilent 35670A Verifying SpecificationsAmplitude Accuracy Test Date:___/___/___Amplitude Accuracy continued Agilent 35670A Verifying SpecificationsFlatness −11 dBVrms, 51.2 kHz, One Ch, ChPerformance Test Record - Four Channel Verifying SpecificationsAmplitude Linearity Test Date:___/___/___Agilent 35670A A-WeightFilterVerifying Specifications MeasurementPerformance Test Record - Four Channel Verifying SpecificationsChannel Match Two Ch, 2/1, 7 dBV FS MagPerformance Test Record - Four Channel Verifying SpecificationsAgilent 35670A Anti-AliasFilter Verifying SpecificationsFrequency Accuracy Input CouplingAgilent 35670A Verifying SpecificationsHarmonic Distortion Test Date:___/___/___Performance Test Record - Four Channel Verifying SpecificationsIntermodulation Distortion Test Date:___/___/___Cross Talk Single Ch Phase AccuracyVerifying Specifications Agilent 35670ATach Function option D01 only Verifying SpecificationsExternal Trigger Input ResistanceSource Output Resistance Verifying SpecificationsSource Amplitude Accuracy Agilent 35670ASource Flatness Verifying SpecificationsSource DC Offset Source DistortionOperation Verification Test Record - Two Channel Test Instruments UsedDC Offset Verifying SpecificationsSelf Test NoiseAgilent 35670A Spurious SignalsVerifying Specifications Operation Verification Test Record - Two Channel4 of Verifying SpecificationsTest Date:___/___/___ Operation Verification Test Record - Two ChannelAgilent 35670A Spurious Signals continuedVerifying Specifications Test Date:___/___/___Operation Verification Test Record - Two Channel Verifying SpecificationsAmplitude Accuracy Test Date:___/___/___Flatness A Weight FilterVerifying Specifications Amplitude LinearityAgilent 35670A Verifying SpecificationsChannel Match Operation Verification Test Record - Two ChannelFrequency Accuracy Single Ch Phase AccuracyVerifying Specifications Tach Function option D01 onlySource Amplitude Accuracy Verifying SpecificationsICP Supply Source FlatnessOperation Verification Test Record - Four Channel Test Instruments UsedDC Offset Verifying SpecificationsSelf Test NoiseTest Date:___/___/___ Spurious SignalsAgilent 35670A 3 of4 of Verifying SpecificationsTest Date:___/___/___ Operation Verification Test Record - Four ChannelTest Date:___/___/___ Verifying SpecificationsAgilent 35670A 5 ofTest Date:___/___/___ Spurious Signals continuedVerifying Specifications 6 ofAgilent 35670A Verifying SpecificationsAmplitude Accuracy Test Date:___/___/___Test Date:___/___/___ Verifying SpecificationsAmplitude Accuracy continued 8 ofTest Date:___/___/___ FlatnessAgilent 35670A 9 ofTest Date:___/___/___ Verifying SpecificationsAmplitude Linearity 10 ofAgilent 35670A A Weight FilterVerifying Specifications Test Date:___/___/___Agilent 35670A Verifying SpecificationsChannel Match Test Date:___/___/___Agilent 35670A Verifying SpecificationsFrequency Accuracy Test Date:___/___/___Tach Function option D01 only Single Ch Phase AccuracyVerifying Specifications ICP SupplySource Distortion Source Amplitude AccuracySource Flatness Agilent 35670APage Troubleshooting the Analyzer Troubleshooting the Analyzer Safety ConsiderationsTroubleshooting Hints Equipment RequiredTroubleshooting Test How to troubleshoot the analyzerSymptom To perform initial verification Symptom Probable Faulty AssemblyPage 1 MΩ 10:1 probe Signal NameProbable Faulty Assembly Test LocationA7 Component Locator, Circuit Side Troubleshooting the AnalyzerAgilent 35670A To perform initial verificationProbable Faulty Assembly Step 7. Check signals required for power upSignal Name Signal NameTo troubleshoot the power supply •Set the power switch to off O •Remove the A7 CPU assembly •Disconnect the fan cable from A99 P90 power-uptest result to the following table To troubleshoot power-upfailures• Set the power switch to on l Step• Set the power switch to off O Hexa Power-onLEDsBinary ~Time LEDsTo troubleshoot CPU, memory, and buses failures Binary G• Set the power switch to off OProbable Faulty Assembly HexadecimalA7 Component Locator, Circuit Side 4-20• Set the power switch to off O To troubleshoot display failures Page Vertical and horizontal scanning is occurring SymptomProbable Faulty Assembly To troubleshoot IIC bus failures LEDs, and the display • Set the power switch to on l• Attach a logic probe to A7 P7 pin 2 SCL G• Attach the logic probe to A7 P7 pin 1 SDA •Set the power switch to off O To troubleshoot fast bus failures Agilent 35670A Troubleshooting the AnalyzerTo troubleshoot fast bus failures • Set the power switch to on l To perform self testsusing a BNC cable 4-40 ‘’To troubleshoot intermittent failures.’’ displayed‘’To troubleshoot self-testlockup failures.’’ following tableFailing Self Test Probable Faulty Assembly AdjustmentTroubleshooting Test Troubleshooting Test Probable Faulty AssemblyAdjustment Failing Self TestAdjustment Self-TestTroubleshooting Guide continuedProbable Faulty Assembly Troubleshooting TestFailure Probable FaultyAssembly Next TestTo troubleshoot self-testlockup failures G• Set the power switch to on lG• Press the following keys Page To troubleshoot intermittent failures •Set the power switch to on l•Press the following keys To troubleshoot performance test failures Adjustment Troubleshooting the AnalyzerProbable Faulty Assembly Troubleshooting TestSpurious signals Troubleshooting the AnalyzerFailing Performance Test Troubleshooting Guide To troubleshoot performance test failuresTo troubleshoot source and calibrator failures Step 2. Check the dc offset assembly isprobably faulty • Connect the voltmeter to A5 TP3• Press the following keys Troubleshooting the Analyzer G• Set the power switch to off O•Set the power switch to on l Step 4. Check the calibrator outputInput Troubleshooting the AnalyzerSystem Utility Source•Press the following keys Assembly To troubleshoot input and ADC failuresProbable Faulty System UtilityTroubleshooting the Analyzer To troubleshoot input and ADC failuresPage 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 •Set the frequency synthesizer as follows To troubleshoot trigger failuresG• Set the power switch to on l mS S CHANNEL 3 option AY6 onlyCHANNEL 4 option AY6 only The analyzer should now triggerG• 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 Agilent 35670A Troubleshooting the AnalyzerTo troubleshoot memory battery failures G• Set the power switch to on l To troubleshoot tachometer failures • Press the following keys Page Adjusting the Analyzer Assembly Adjusting the AnalyzerAdjustment ComponentEquipment Required Safety ConsiderationsAdjusting the Analyzer potentially dangerous voltagesGPIB Code Remote OperationAdjustment •Set the power switch to on To adjust the frequency reference•Set the power switch to off O To adjust the source To adjust the sourceAdjusting the Analyzer Equipment Required: MultimeterTo adjust the ADC gain, offset and reference •Set the oscilloscope as follows •Set the power switch to off O•Set the power switch to on •Press the following keys To adjust the input dc offset Equipment Required: NoneG• Set the power switch to on G• Set the power switch to on To adjust common mode rejection Equipment Required: BNC-to-BNCCable•Set the power switch to off O •Set the power switch to off O •Press the the following keys To adjust filter flatness To adjust filter flatnessAdjusting the Analyzer G• Set the power switch to on G• Set the power switch to on •Press the following keys To adjust the display voltage Agilent 35670A Adjusting the AnalyzerTo adjust the display voltage Replacing Assemblies Replacing Assemblies Replacing Assemblies What to do before replacing the CPU assemblyAgilent 35670A What to do after replacing an assembly Required Performance Test Assembly ReplacedRequired Adjustment A7 CPUReplacing Assemblies To remove cover2 Slide the cover straight up To remove coverTo remove rear panel 1 Remove cover see ‘’To remove cover’’ To remove front panel2 Remove assembly retainer bracket Replacing AssembliesTo remove front panel Agilent 35670AReplacing Assemblies 2 Disconnect the disk drive cable To remove disk drive1 Remove cover see ‘’To remove cover’’ 4 Slide the disk drive back and lift upTo remove CPU Replacing Assemblies To remove NVRAM1 Remove A7 CPU assembly see ‘’To remove CPU’’ To remove NVRAMTo remove memory To remove memoryTo remove power supply Agilent 35670A 6 Lift the A98 Power Supply assembly straightTo remove power supply Replacing Assemblies4 Unplug all assemblies from the A99 To remove motherboard3 Remove assembly retainer bracket MotherboardTo remove motherboard To remove dc-dcconverter To remove dc-dcconverterReplacing Assemblies Replaceable Parts Non-ListedParts Replaceable PartsOrdering Information Mfr No Direct Mail Order SystemCode Numbers Mfr NameAssemblies AssembliesReplaceable Parts Description Agilent 35670AAgilent Part NumberCables CablesReplaceable Parts Replaceable Parts Instrument Covers and HandlesAgilent 35670A Replaceable Parts Assembly Covers and BracketsAssembly Covers and Brackets Front Panel Parts Agilent 35670ARear Panel Parts Rear Panel PartsReplaceable Parts Chassis Parts Chassis PartsAgilent 35670A Replaceable Parts Screws, Washers, and NutsMiscellaneous Parts Screws, Washers, and NutsParts Option UK4 PartsAgilent 35670A PartsOption UK4 Parts Replaceable PartsAgilent 35670A Circuit Descriptions Circuit Descriptions Overall Instrument DescriptionOverall Block Diagram Overall Instrument Description Two Channel Overall Block DiagramCircuit Descriptions Circuit Descriptions Four Channel Overall Block DiagramAgilent 35670A Overall Instrument DescriptionA1 Input DC Offset DAC Agilent 35670AA1 Input Circuit Descriptions A1 Input Block Diagram: ChannelA1 Input Agilent 35670ACircuit Descriptions A1 Input Block Diagram: Channel 1 continuedAgilent 35670A A1 InputAgilent 35670A A1 Input Block Diagram: ChannelA1 Input Circuit Descriptions A1 Input Block Diagram: Channel 2 continuedAgilent 35670A A1 InputA2 Input A2 InputCircuit Descriptions DC Offset DAC Agilent 35670AA2 Input Agilent 35670A A2 Input Block Diagram: Channel 1 or ChannelA2 Input A2 Input Agilent 35670ACircuit Descriptions Circuit Descriptions A2 Input Block Diagram: Channel 3 or ChannelA2 Input Agilent 35670AA2 Input Agilent 35670ACircuit Descriptions Channel 1 Track & Hold Channel 2 Track & Hold A5 AnalogChannel Switch 1st Pass Circuit ADC Controller Channel 3 Track & Hold Channel 4 Track & HoldCircuit Descriptions A5 Analog Block Diagram: ADC and TriggerAgilent 35670A A5 Analog±6.2 Voltage Reference Circuit Descriptions Agilent 35670AA5 Analog Trigger A6 Digital• ADC timing and synchronization signals Local OscillatorCircuit Descriptions A6 Digital Block DiagramAgilent 35670A A6 DigitalA6 Digital Circuit DescriptionsAgilent 35670A FIFO ControllerA7 CPU A7 CPU A7 CPU Block DiagramCircuit Descriptions Agilent 35670AA7 CPU Block Diagram: Interface •A1 or A2 Input •A5 Analog •SCL serial clock •SDA serial data System Utility A8 MemoryLocal/Gpib Plot/PrintROM Address Agilent 35670AA8 Memory nonvolatile RAM A9 NVRAMA9 NVRAM Block Diagram A10 Rear Panel A10 Rear Panel A10 Rear Panel Block DiagramCircuit Descriptions Agilent 35670AA11 Keyboard Controller A11 Keyboard Controller Block DiagramA12 BNC A12 BNCCircuit Descriptions A15 Primary Keypad A13 Primary KeypadA14 Secondary Keypad A22 BNCA98 Power Supply A90 FanA101 Display A99 MotherboardA100 Disk Drive A102 DC-DCConverterOption UK4 Microphone Adapter and Power Supply Circuit Descriptions Option UK4 Microphone Adapter and Power SupplyAgilent 35670A Page Voltages and Signals Section Title Voltages and SignalsDescribes signals routed Voltages and Signals Assembly Locations and ConnectionsAssembly Locations Assembly Locations and ConnectionsAssembly Connections for Two Channel Analyzer Voltages and SignalsAssembly Locations and Connections Agilent 35670AAssembly Locations and Connections Assembly Connections for Four Channel AnalyzerVoltages and Signals Agilent 35670APower Supply Voltage Distribution Power Supply Voltage DistributionVoltages and Signals A1 Input A2 Input•This assembly uses the signal A7 J3 PinsA8 P1 Pins ⇔This signal is bidirectionalA8 Memory Signal NameAgilent 35670A PA10BD16 —31 SIZE0 — SIZE1 Agilent 35670AA8 Memory A8 P2 A9 NVRAMPins Signal Name BASnSignal Name A10 Rear PanelGPIB Agilent 35670A Serial PortSignal Name A10 Rear PanelParallel Port Signal NameTachometer Input DIN KeyboardSource Output External Trigger InputA11 Keyboard Controller Signal NameA11 Keyboard Controller assembly Agilent 35670AThe 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 Vpk A12 BNCA11 Location Signal NameA13 Primary Keypad HRNGDn HRNGBnHRNGCn OVLDAnA14 Secondary Keypad COL0 - COL2A22 BNC Voltages and SignalsA22 BNC Motherboard Connector Signal NameAssembly Using Signal Connector Pin NumberAgilent 35670A A99 MotherboardAgilent 35670A A99 Motherboard Voltages and SignalsAssembly Using Voltage VoltageAgilent 35670A A10MHZA99 Motherboard Voltages and SignalsAgilent 35670A EXTRGINAgilent 35670A FSELAnA99 Motherboard Voltages and SignalsAgilent 35670A LPFCLKAgilent 35670A SRCCLOCKA100 Disk Drive Voltages and SignalsA100 Disk Drive A7 P3DISKINn Agilent 35670AA100 Disk Drive HSYNCELn Signal NameA101 Display A7 P2 PinsA102 DC-DCConverter A102Page Internal Test Descriptions Low-levelSubtests Power-onTest DescriptionInternal Test Descriptions High-levelSubtests10-3 Power-onTest MessagesBinary to Hexadecimal Internal Test Descriptions Power-onTest DescriptionPower-onTest Messages Calibration Routine Description 10-5Calibration Routine Description DC-OffsetTables and Frequency Correction CurvesInternal Test Descriptions Calibration Error Messages Viewing the Calibration Correction CurvesDisp Format Inst ModeInput System UtilityFault Log Messages 10-10 Self-TestDescriptionsSELF TEST FUNCTIONL TESTS ALL Agilent 35670A Functional Tests All Self-TestGroupSelf Tests that Perform a Measurement Individual Self-TestDescriptions DISTORTN INPUT TRIGGER OFFSET SERIAL PORT Self Test Self-TestMenu Map and GPIB CommandsGPIB Command SELF TEST GPIB CommandSelf Test Page Backdating Backdating Quick Reference Quick Reference Quick Reference Assembly LocationsAgilent 35670A Agilent 35670A Assembly Connections for Two Channel AnalyzerQuick Reference Quick Reference Assembly Connections for Four Channel AnalyzerAgilent 35670A Agilent 35670A Two Channel Overall Block DiagramQuick Reference Quick Reference Four Channel Overall Block DiagramAgilent 35670A Agilent 35670A A1 Input Block Diagram: ChannelQuick Reference Quick Reference A1 Input Block Diagram: Channel 1 continuedAgilent 35670A Agilent 35670A A1 Input Block Diagram: ChannelQuick Reference Quick Reference A1 Input Block Diagram: Channel 2 continuedAgilent 35670A Agilent 35670A A2 Input Block Diagram: Channel 1 or ChannelQuick Reference Agilent 35670A Quick ReferenceAgilent 35670A A2 Input Block Diagram: Channel 2 or ChannelQuick Reference Agilent 35670A Quick ReferenceAgilent 35670A A5 Analog Block Diagram: ADC and TriggerQuick Reference Agilent 35670A Quick ReferenceAgilent 35670A A6 Digital Block DiagramQuick Reference Quick Reference A7 CPU Block DiagramAgilent 35670A Agilent 35670A A7 CPU Block Diagram: InterfaceQuick Reference Quick Reference Reset LogicAgilent 35670A Agilent 35670A A8 Memory Block DiagramQuick Reference Quick Reference A9 NVRAM Block DiagramAgilent 35670A Agilent 35670A A10 Rear Panel Block DiagramQuick Reference Quick Reference A11 Keyboard Controller Block DiagramAgilent 35670A Agilent 35670A A98 Power Supply Block DiagramQuick Reference battery backed memory Indexbattery troubleshootingtroubleshooting CPU assemblyfrequency adjustment front panelinput assembly signals 8-29,initial verification troubleshooting common mode adjustmenttroubleshooting memory assemblysignal descriptions troubleshooting battery3-13 9-2310-17 10-12washers, part numbers hints using self testsvoltages power supply distribution 7-12Then read If you are thinking aboutAnd you want to Guide to Agilent 35670A DocumentationNeed Assistance? July 1994: Previous edition About this editionOctober 2000: Rebranded for Agilent Technologies