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Agilent Technologies 35670-90066 manual To troubleshoot tachometer failures

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To troubleshoot tachometer failures

Troubleshooting the Analyzer	Agilent 35670A
To troubleshoot tachometer failures

To troubleshoot tachometer failures

Use this test to isolate tachometer failures to the A10 Rear Panel assembly or A6 Digital assembly.

Step 1. Check the rear panel tachometer input.

G• Set the power switch to off ( O ).

•Remove the seven screws holding the rear panel to the analyzer and lean the rear panel back until the A10 Rear panel assembly is visible. Keep the cables connected.

•Connect the SOURCE output to the TACH input on the rear panel using a BNC cable.

•Set the power switch to on ( l ).

•Press the following keys:[ CALIBRATN ][]System Utility

[ AUTO CAL OFF ]

[ Rtn ]

[ MORE ]

[ SELF TEST ]

[ LOOP MODE ON ]

[ FUNCTIONL TESTS ] [ TACHOMETR ]

[ CONTINUE ]

•Using an oscilloscope and 1 M 10:1 probe, check the following signal.

The signal should be displayed while the self test is running. Each time the self test restarts, the source output to the tachometer input will be interrupted.

Oscilloscope Setup		Parameters	Waveform

Connect CH1 to A10 TP1		Amplitude
CH1 V/div	1 V/div	Time
CH1 V/div	1 V/div	Duty Cycle
Input Impedance	1 M Ω	Duty Cycle
Input Impedance	1 M Ω	Pulse shape
CH1 Coupling		Pulse shape
CH1 Coupling	dc
Probe Atten	10
Display Mode	Real Time
Time/div	2 ms/div
Trigger	Auto

•If the signal is incorrect, the A10 Rear Panel assembly is probably faulty.

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Agilent Technologies 35670-90066 manual To troubleshoot tachometer failures

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 GENERAL BEFORE APPLYING POWERSaftey Summary ENVIRONMENTAL CONDITIONSFUSES DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHEREDO NOT REMOVE THE INSTRUMENT COVER 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 Input9Voltages and Signals 10Internal Test Descriptions11Backdating 12Quick Reference Index Specifications Specifications AbbreviationsFrequency Agilent 35670AFrequency Single Channel Amplitude SpecificationsSingle Channel Amplitude FFT Dynamic Range Single Channel Phase Input NoiseWindow Parameters Specifications Cross Channel PhaseCross Channel Amplitude Agilent 35670AInput Time Domain TriggerAgilent 35670A Tachometer Source Output Agilent 35670ADigital Interfaces General Specifications Order Tracking — Option 1D0 Max Order⋅ Max RPMSwept Sine Measurements —Option1D2 Arbitrary Waveform Source—Option1D4Real Time Octave Analysis — Option 1D1 f i+1n = 1, 3 or 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 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 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 To connect the analyzer to an external monitor •Set the analyzer’s power switch to on lEXT MON ON OFF 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 EquipmentOperation Verification and Performance Tests Program Controlled Test EquipmentMeasurement Uncertainty Operation Verification Tests Performance TestsSpecifications and Performance Tests SpecificationPerformance Test •‘’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 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 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 chTo 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 To set up the frequency accuracy test To set up the frequency accuracy testVerifying Specifications 1 2 chTo 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 4 ch 2 ch2A 2 ch Verifying Specifications4 ch Verifying SpecificationsTo set up the harmonic distortion test Agilent 35670ATo set up the intermodulation distortion test 1 2 ch1 4 ch Verifying Specifications 1A 2 ch1A 4 ch To set up the intermodulation distortion testTo set up the cross talk test 2 2 ch1 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 test5 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 2 ch Verifying SpecificationsTo set up the external trigger test 1A 4 chTo set up the tach function test 1 2 ch1 4 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 chTo set up the ICP supply test 1 2 ch2 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 testTo 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 3 2 ch Verifying SpecificationsTo set up the source output resistance test 1 4 chTo set up the source dc offset test 1 2 ch1 4 ch To set up the source flatness test To set up the source flatness testVerifying Specifications 1 2 chTo 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 Using Other Test Equipment Measurement UncertaintyUsing Recommended Test Performance TestVerifying Specifications Agilent 35670AMeasurement Uncertainty 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 35670AVerifying Specifications Performance Test Record - Four ChannelFour Ch, 1600 Hz Start, Ch Verifying Specifications Agilent 35670AFour Ch, 14400 Hz Start, Ch 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 MagVerifying Specifications Agilent 35670APerformance Test Record - Four Channel 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 RequiredHow to troubleshoot the analyzer SymptomTroubleshooting Test 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 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 4-40 ‘’To troubleshoot intermittent failures.’’ displayed‘’To troubleshoot self-testlockup failures.’’ following tableProbable Faulty Assembly Adjustment Troubleshooting TestFailing Self 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 To troubleshoot trigger failures G• Set the power switch to on l•Set the frequency synthesizer as follows 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 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 Assembly Adjusting the AnalyzerAdjustment ComponentEquipment Required Safety ConsiderationsAdjusting the Analyzer potentially dangerous voltagesRemote Operation AdjustmentGPIB Code To adjust the frequency reference •Set the power switch to off O•Set the power switch to on To adjust the source To adjust the sourceAdjusting the Analyzer Equipment Required: MultimeterTo 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 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 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 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 AssembliesAgilent 35670A Replacing AssembliesTo remove front panel 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 Replacing AssembliesTo remove dc-dcconverter Replaceable Parts Replaceable Parts Ordering InformationNon-ListedParts Mfr No Direct Mail Order SystemCode Numbers Mfr NameAssemblies Replaceable PartsAssemblies Description Agilent 35670AAgilent Part NumberCables Replaceable PartsCables Instrument Covers and Handles Agilent 35670AReplaceable Parts Assembly Covers and Brackets Assembly Covers and BracketsReplaceable Parts Front Panel Parts Agilent 35670ARear Panel Parts Replaceable PartsRear Panel Parts Chassis Parts Agilent 35670AChassis Parts Replaceable Parts Screws, Washers, and NutsMiscellaneous Parts Screws, Washers, and NutsParts Option UK4 PartsAgilent 35670A PartsReplaceable Parts Agilent 35670AOption UK4 Parts Circuit Descriptions Circuit Descriptions Overall Instrument DescriptionOverall Block Diagram Two Channel Overall Block Diagram Circuit DescriptionsOverall Instrument Description Circuit Descriptions Four Channel Overall Block DiagramAgilent 35670A Overall Instrument DescriptionA1 Input Agilent 35670A A1 InputDC Offset DAC Circuit Descriptions A1 Input Block Diagram: ChannelA1 Input Agilent 35670ACircuit Descriptions A1 Input Block Diagram: Channel 1 continuedAgilent 35670A A1 InputA1 Input Block Diagram: Channel A1 InputAgilent 35670A Circuit Descriptions A1 Input Block Diagram: Channel 2 continuedAgilent 35670A A1 InputA2 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 Circuit Descriptions A2 Input Block Diagram: Channel 3 or ChannelA2 Input Agilent 35670AAgilent 35670A Circuit DescriptionsA2 Input 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 Agilent 35670A A5 AnalogCircuit Descriptions 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/PrintAgilent 35670A A8 MemoryROM Address A9 NVRAM A9 NVRAM Block Diagramnonvolatile RAM A10 Rear Panel A10 Rear Panel A10 Rear Panel Block DiagramCircuit Descriptions Agilent 35670AA11 Keyboard Controller A11 Keyboard Controller Block DiagramA12 BNC Circuit DescriptionsA12 BNC 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 Option UK4 Microphone Adapter and Power Supply Agilent 35670ACircuit Descriptions Page Voltages and Signals Voltages and Signals Describes signals routedSection Title 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 Voltages and SignalsPower Supply Voltage Distribution A1 Input A2 Input•This assembly uses the signal A7 J3 PinsA8 P1 Pins ⇔This signal is bidirectionalA8 Memory Signal NameAgilent 35670A PA10BD16 —31 Agilent 35670A A8 MemorySIZE0 — SIZE1 A9 NVRAM PinsA8 P2 Signal Name BASnA10 Rear Panel GPIBSignal Name 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 BNCSignal Name A13 Primary KeypadA11 Location HRNGDn HRNGBnHRNGCn OVLDAnA14 Secondary Keypad COL0 - COL2Voltages and Signals A22 BNCA22 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 P3Agilent 35670A A100 Disk DriveDISKINn Signal Name A101 DisplayHSYNCELn A7 P2 PinsA102 DC-DCConverter A102Page Internal Test Descriptions Low-levelSubtests Power-onTest DescriptionInternal Test Descriptions High-levelSubtestsPower-onTest Messages Binary to Hexadecimal10-3 Power-onTest Description Power-onTest MessagesInternal Test Descriptions Calibration Routine Description 10-5DC-OffsetTables and Frequency Correction Curves Internal Test DescriptionsCalibration Routine Description Calibration Error Messages Viewing the Calibration Correction CurvesDisp Format Inst ModeInput System UtilityFault Log Messages Self-TestDescriptions SELF TEST FUNCTIONL TESTS ALL10-10 Agilent 35670A Functional Tests All Self-TestGroupSelf 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 Agilent 35670A Quick ReferenceA2 Input Block Diagram: Channel 2 or Channel Quick ReferenceAgilent 35670A Agilent 35670A Quick ReferenceA5 Analog Block Diagram: ADC and Trigger Quick ReferenceAgilent 35670A Agilent 35670A Quick ReferenceA6 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 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? About this edition October 2000: Rebranded for Agilent TechnologiesJuly 1994: Previous edition