Service GuidePublication Number 54913-97022March 2013© Agilent Technologies, Inc. 2007-2013Infiniium 90000 A-Series Oscilloscopes
Chapter 1: General InformationAccessories supplied10Accessories suppliedThe following accessories are supplied.•Mouse•Stylus•Keyboard• Accessory Pouch
Chapter 5: Replacing AssembliesTo remove and replace the front panel bezel and front panel circuit assembly100Figure 5-16Figure 5-17This figure shows
Chapter 5: Replacing AssembliesTo remove and replace the on/off board101Figure 5-18This figure shows the other left hand side tab for the control pane
Chapter 5: Replacing AssembliesTo remove and replace the on/off board102Figure 5-204To replace the on/off board, reverse the above procedure.
Chapter 5: Replacing AssembliesTo remove and replace the backlight inverter board103To remove and replace the backlight inverter boardUse this procedu
Chapter 5: Replacing AssembliesTo remove and replace the touch screen, the front deck, and the controller assembly104To remove and replace the touch s
Chapter 5: Replacing AssembliesTo remove and replace the touch screen, the front deck, and the controller assembly1056To remove the front deck off the
Chapter 5: Replacing AssembliesTo remove and replace the touch screen, the front deck, and the controller assembly106Figure 5-269You can now remove th
Chapter 5: Replacing AssembliesTo remove and replace the motherboard107To remove and replace the motherboard1Disconnect the power cable and remove the
Chapter 5: Replacing AssembliesTo remove and replace the acquisition boards/backplane assembly108To remove and replace the acquisition boards/backplan
Chapter 5: Replacing AssembliesTo remove and replace the acquisition boards/backplane assembly109Figure 5-326Remove the Torx T20 screws from the top o
Chapter 1: General InformationEnvironmental Conditions11Environmental Conditions Overvoltage CategoryThis product is intended to be powered by MAINS t
Chapter 5: Replacing AssembliesTo remove and replace the acquisition boards/backplane assembly110Figure 5-349Remove the two Torx T20 screws from the u
Chapter 5: Replacing AssembliesTo remove and replace the acquisition boards/backplane assembly111Figure 5-36
Chapter 5: Replacing AssembliesTo remove the backplane assembly from the acquisition assemblies112To remove the backplane assembly from the acquisitio
Chapter 5: Replacing AssembliesTo set the calibration factors after replacing the acquisition board113To set the calibration factors after replacing t
Chapter 5: Replacing AssembliesTo set the calibration factors after replacing the acquisition board114c Pull down the Utilities menu and select Calibr
Chapter 5: Replacing AssembliesTo remove and replace the hard disk drive and the hard drive control board115To remove and replace the hard disk drive
Chapter 5: Replacing AssembliesTo remove and replace the hard disk drive and the hard drive control board116Figure 5-416To replace the hard disk drive
Chapter 5: Replacing AssembliesCable removal (for replacing the motherboard)117Cable removal (for replacing the motherboard)This section shows the var
Chapter 5: Replacing AssembliesCable removal (for replacing the motherboard)118Figure 5-43Figure 5-44Figure 5-45 SATA cable between motherboard and ha
Chapter 5: Replacing AssembliesCable removal (for replacing the motherboard)119Figure 5-46Figure 5-47Figure 5-48Display cable bet ween motherboard and
Chapter 1: General InformationOscilloscope Dimensions12Oscilloscope DimensionsThe following pictures show the dimensions of the frame.0DUNHUV'62
Chapter 5: Replacing AssembliesCable removal (for replacing the motherboard)120Figure 5-49Figure 5-50Power harness between backpl ane and mot herboard
Chapter 5: Replacing AssembliesCable removal (for replacing the motherboard)121Figure 5-51 Motherboard and cables in performance-enhanced 90000 A-Seri
Chapter 5: Replacing AssembliesTo remove and replace the power supply122To remove and replace the power supplyUse this procedure to remove and replace
Chapter 5: Replacing AssembliesTo remove and replace the fans123To remove and replace the fansWARNING AVOID INJURY!The fan blades are exposed both ins
Chapter 5: Replacing AssembliesTo remove and replace the power cord124To remove and replace the power cordUse this procedure to remove and replace the
Chapter 5: Replacing AssembliesTo remove and replace the USB or GPIB port125To remove and replace the USB or GPIB portUse this procedure to remove and
Chapter 5: Replacing AssembliesTo remove and replace the USB or GPIB port126
6Ordering Replaceable Parts 128Listed Parts 128Unlisted Parts 128Direct Mail Order System 128Exchange Assemblies 128Exploded Views 129Repl
128Replaceable Parts This chapter describes how to order replaceable assemblies and parts for the Agilent 90000 A-Series oscilloscopes. Service sup
Chapter 6: Replaceable PartsExploded Views129Exploded ViewsFront Frame and Front Panel
2To run the self calibration 15Calibration
Chapter 6: Replaceable PartsExploded Views130Fan and Acquisition Assembly
Chapter 6: Replaceable PartsExploded Views131Power Supply and PC Motherboard
Chapter 6: Replaceable PartsExploded Views132Sleeve and Accessory Pouch
Chapter 6: Replaceable PartsReplaceable Parts List133Replaceable Parts ListThe following table is a list of replaceable parts. Information given for e
Chapter 6: Replaceable PartsReplaceable Parts List134A20 54913-68718 1 Replacement HDD for M890/Win7-based DSO90000 series scopesA20 54932-83501 1 Rem
Chapter 6: Replaceable PartsReplaceable Parts List135MP18 54913-00103 1 RHDD DeckMP19 54913-94306 1 Label - Rear Panel without RHDDMP20 54913-62301 1
Chapter 6: Replaceable PartsReplaceable Parts List136
7Block-Level Theory 139Power Supply Assembly 141Monitor Assembly 141Acquisition System 141Front Panel 142Motherboard 144On/Off Board 144
Chapter 7: Theory of Operation138Figure 7-1 Oscilloscope Block Diagram
139Theory of OperationThis Service Guide supports troubleshooting the Agilent Technologies oscilloscopes to assembly level. Theory of operation is inc
14CalibrationThis chapter provides self calibration procedures for the oscilloscope.
Chapter 7: Theory of OperationBlock-Level Theory140Figure 7-2Acquisition BoardsBackplane Board
Chapter 7: Theory of OperationBlock-Level Theory141Power Supply AssemblyThe AC input to the power supply is 100–240 VAC ±10%. Maximum input power is 8
Chapter 7: Theory of OperationBlock-Level Theory142Figure 7-3Backplane assembly block diagramFront PanelThe front panel board combines functions from
Chapter 7: Theory of OperationBlock-Level Theory143Figure 7-4Keyboard block diagramDisk DriveThe hard disk drive is a high-capacity, shock-resistant u
Chapter 7: Theory of OperationBlock-Level Theory144MotherboardThe motherboard provides all system control and interface functions for the oscilloscope
Chapter 7: Theory of OperationBlock-Level Theory145Figure 7-5Main FPGA connections block diagram MainFPGAHedwigMemoryControllerHedwigMemoryControllerA
146Figure 7-6 Acquisition board block diagram
Safety NoticesThis apparatus has been designed and tested in accor-dance with IEC Publication EN 61010-1:2001, Safety Require-ments for Measuring Appa
Notices© Agilent Technologies, Inc. 2007-2013No part of this manual may be reproduced in any form or by any means (including electronic storage and re
Chapter 2: CalibrationTo run the self calibration15To run the self calibrationThe self calibration uses signals generated in the oscilloscope to calib
Chapter 2: CalibrationTo run the self calibration16Figure 2-1 Calibration Dialog Box4Click Start, then follow the instructions on the screen. The ro
3Performance Test Interval 18Performing Self-Test and Calibration 19Vertical Performance Verification 20Offset Accuracy Test 21DC Gain Accurac
18This section documents performance test procedures. Performance verification for the products covered by this manual consists of three main steps:•
Chapter 3: Testing PerformancePerforming Self-Test and Calibration19Performing Self-Test and Calibration1Perform self testsa Pull down the Utilities m
2Agilent Infiniium 90000 A-Series Oscilloscopes at a GlanceEase of use with high performanceThe Agilent Infiniium 90000 A-Series oscilloscopes combine
20 Vertical Performance VerificationThis section contains the following vertical performance verification:• Offset Accuracy Test• DC Gain Accuracy Tes
Chapter 3: Testing PerformanceOffset Accuracy Test21Offset Accuracy TestCAUTION Ensure that the input voltage to the oscilloscope never exceeds ±5 V.S
Chapter 3: Testing PerformanceOffset Accuracy Test22b When the Acquisition Setup window is displayed, enable averaging and set the # of averages to 25
Chapter 3: Testing PerformanceOffset Accuracy Test23c When the Enter Measurement Info window is displayed, ensure that the V avg function is set up as
Chapter 3: Testing PerformanceOffset Accuracy Test246Repeat step 5 for the remaining vertical sensitivities for channel 1 in the Zero Error Test secti
Chapter 3: Testing PerformanceOffset Accuracy Test25Offset Gain Test12Make the connections to scope channel 1 as shown below.Connections 13Set up the
Chapter 3: Testing PerformanceOffset Accuracy Test26b Pull down the Setup menu and select Acquisition. When the Acquisition Setup window is displayed,
Chapter 3: Testing PerformanceOffset Accuracy Test2715Set the channel 1 offset value to 400.0 mV. This can be done using the front panel control or:a
Chapter 3: Testing PerformanceOffset Accuracy Test2818Change the channel 1 offset value to -400.0 mV.19Set the Aux Out voltage to -400.0 mV.20Press th
Chapter 3: Testing PerformanceDC Gain Accuracy Test29DC Gain Accuracy TestCAUTION Ensure that the input voltage to the oscilloscope never exceeds ±5 V
3In This Service GuideThis guide provides the service documentation for the Agilent Technologies 90000 A-Series oscilloscopes. It is divided into seve
Chapter 3: Testing PerformanceDC Gain Accuracy Test30Procedure1Make the connections to scope channel 1 as shown below.Connections 2Press Default Setup
Chapter 3: Testing PerformanceDC Gain Accuracy Test31b When the Acquisition Setup window is displayed, enable averaging and set the # of averages to 2
Chapter 3: Testing PerformanceDC Gain Accuracy Test32c Select the Vavg measurement as shown below. d When the Enter Measurement Info window is display
Chapter 3: Testing PerformanceDC Gain Accuracy Test336Change the Aux Out voltage to -15 mV.7Press the Clear Display key on the scope, wait for the #Av
Chapter 3: Testing PerformanceDC Gain Accuracy Test3415Calculate the offset gain using the following expression and record this value in the DC Gain T
Chapter 3: Testing PerformanceAnalog Bandwidth - Maximum Frequency Check35Analog Bandwidth - Maximum Frequency CheckCAUTION Ensure that the input volt
Chapter 3: Testing PerformanceAnalog Bandwidth - Maximum Frequency Check36ConnectionsProcedure1Preset the power meter.2Ensure that the power sensor is
Chapter 3: Testing PerformanceAnalog Bandwidth - Maximum Frequency Check37c Set the horizontal scale to 16 ns/div (to display 8 cycles of a 50 MHz wav
Chapter 3: Testing PerformanceAnalog Bandwidth - Maximum Frequency Check38f When the RMS voltage measurement setup window is displayed, configure this
Chapter 3: Testing PerformanceAnalog Bandwidth - Maximum Frequency Check399Press the Clear Display key on the scope and record the scope V rms reading
Chapter 3: Testing PerformanceAnalog Bandwidth - Maximum Frequency Check4011Change the generator frequency to the maximum value for the model being te
Chapter 3: Testing PerformanceAnalog Bandwidth - Maximum Frequency Check4116Change the scope set up as follows:a Change the channel vertical sensitivi
Chapter 3: Testing PerformanceTime Scale Accuracy (TSA)42Time Scale Accuracy (TSA)This procedure verifies the maximum TSA specification for the oscill
Chapter 3: Testing PerformanceTime Scale Accuracy (TSA)43ConnectionsConnect the equipment as shown in the following figure.Procedure1Configure the sin
Chapter 3: Testing PerformanceTime Scale Accuracy (TSA)44measurement result should exceed the specified accuracy by at least 0.1 ppm in order to guara
45Performance Test RecordOffset Performance TestZero Error TestAgilent TechnologiesAgilent 90000 Series OscilloscopesModel Number ____________________
Chapter 3: Testing PerformancePerformance Test Record46Offset Gain TestVertical SensitivityVAux OutSettingVDMM+VDMM-VDMM0VScope+VScope-VScope0Calculat
Chapter 3: Testing PerformancePerformance Test Record47DC Gain TestVertical SensitivityVAux OutSettingVDMM+VDMM-VScope+VScope-Calculated DC Gain Error
Chapter 3: Testing PerformancePerformance Test Record48Analog Bandwidth - Maximum Frequency CheckMax frequency: DSO/DSA90254A = 2.5 GHz, DSO/DSA90404
Chapter 3: Testing PerformancePerformance Test Record49Test Limits ResultsTime Scale AccuracyLimitLimit is based on years since oscilloscope’s last ca
Contents51 General InformationInstruments covered by this service guide 8Performance-Enhanced Versus Standard Models 9Accessories supplied 10Specifica
Chapter 3: Testing PerformancePerformance Test Record50
4Safety 52Tools Required 52ESD Precautions 52Default Setup 52To troubleshoot the oscilloscope 53Primary Trouble Isolation 54Power Supply T
52TroubleshootingThis section provides troubleshooting information for the Agilent Technologies 90000 Series oscilloscopes. The service strategy of th
Chapter 4: TroubleshootingTo troubleshoot the oscilloscope53To troubleshoot the oscilloscopeThe troubleshooting procedure is used to isolate problems
Chapter 4: TroubleshootingPrimary Trouble Isolation54Primary Trouble IsolationAPerform power-up.Connect the oscilloscope power cord and press the powe
Chapter 4: TroubleshootingPrimary Trouble Isolation55DCheck the front panel response by running the Keyboard and LED self tests.Use this procedure to
Chapter 4: TroubleshootingPrimary Trouble Isolation56Figure 4-3LED Test Screen3 Repeatedly press the Single button on the front panel to step through
Chapter 4: TroubleshootingPower Supply Trouble Isolation57Power Supply Trouble IsolationWARNING SHOCK HAZARD!The maintenance described in this section
Chapter 4: TroubleshootingPower Supply Trouble Isolation58Figure 4-4
Chapter 4: TroubleshootingPower Supply Trouble Isolation59These trouble isolation instructions help isolate the problem to the assembly level when the
Contents6To remove and replace the front panel bezel and front panel circuit assembly 97To remove and replace the on/off board 101To remove and replac
Chapter 4: TroubleshootingUnder-Voltage Fault60Under-Voltage FaultIf the oscilloscope turns off without you pressing the front panel power button then
Chapter 4: TroubleshootingUnder-Voltage Fault61(LOWER ACQ). If any of the following three indicator LEDs are illuminated (BP POL FAIL, NEG SUPPLY FAIL
Chapter 4: TroubleshootingUnder-Voltage Fault62oscilloscope. On the backplane assembly, measure the resistance across the FET (Q1409) between +12V and
Chapter 4: TroubleshootingUnder-Voltage Fault63If there is still a short circuit, then both acquisition boards need to be removed. Once the acquisitio
Chapter 4: TroubleshootingUnder-Voltage Fault64Figure 4-10This figure shows how to measure the backplane assembly resistance between +12V and ground a
Chapter 4: TroubleshootingOver-Temperature Fault65Over-Temperature FaultIf the oscilloscope turns off without you pressing the front panel power butto
Chapter 4: TroubleshootingOver-Temperature Fault66Once you can see the case fans, apply AC power to the instrument and turn it on if it does not start
Chapter 4: TroubleshootingOver-Temperature Fault67Apply AC power and turn the instrument on if it does not start up on its own. Observe whether the tr
Chapter 4: TroubleshootingOver-Voltage Fault68Over-Voltage FaultIf the oscilloscope turns off without you pressing the front panel power button, the f
Chapter 4: TroubleshootingOver-Voltage Fault69Figure 4-15Fan opening to look through to see the second and third groups of over-voltage indicator LEDs
1Instruments covered by this service guide 8Accessories supplied 10Specifications and Characteristics 10Environmental Conditions 11Measurement
Chapter 4: TroubleshootingOver-Voltage Fault70Figure 4-16The acquisition assembly nearest the bottom of the instrument is the channels 1 and 2 acquisi
Chapter 4: TroubleshootingDisplay Trouble Isolation71Display Trouble Isolation
Chapter 4: TroubleshootingDisplay Trouble Isolation72No Display TroubleIsolationRemove cabinet andinstall fan guardCheck fanconnections andpower-onFan
Chapter 4: TroubleshootingTo check the backlight inverter voltages73To check the backlight inverter voltagesThe backlight inverter board MP13 is locat
Chapter 4: TroubleshootingTo check the display board video signals74To check the display board video signalsThe video signals are checked on the 32-pi
Chapter 4: TroubleshootingFront Panel Display Trouble Isolation75Front Panel Display Trouble IsolationConnect external monitor to VGA port. Turn unit
Chapter 4: TroubleshootingFront Panel Display Trouble Isolation76WARNING SHOCK HAZARD!The backlight inverter assembly, which is mounted at the front c
Chapter 4: TroubleshootingFront Panel Trouble Isolation77Front Panel Trouble IsolationFront Panel Trouble IsolationFollow the keyboardtroubleshooting
Chapter 4: TroubleshootingMotherboard Verification78Motherboard VerificationIf you have been through the Power Supply Trouble Isolation section of thi
Chapter 4: TroubleshootingTo setup the BIOS79To setup the BIOSIf the BIOS settings become corrupt, the Infiniium oscilloscope PC motherboard will not
8Instruments covered by this service guideOscilloscopes manufactured after the date this manual was released may be different from those described in
Chapter 4: TroubleshootingAcquisition/Backplane Assembly Trouble Isolation - Scope Self Tests80Acquisition/Backplane Assembly Trouble Isolation - Scop
Chapter 4: TroubleshootingAcquisition/Backplane Assembly Trouble Isolation - Scope Self Tests81Timebase Test Group• Timebase Interpolator Test - This
Chapter 4: TroubleshootingAcquisition/Backplane Assembly Trouble Isolation - Scope Self Tests82Misc. Scope Test Group• Temp Sensor Test - This test ve
Chapter 4: TroubleshootingAutoProbe Board Trouble Isolation83AutoProbe Board Trouble IsolationAutoProbe Board Trouble IsolationInspect the cable betwe
Chapter 4: TroubleshootingTo check the keyboard; Trouble Isolation Procedure84To check the keyboard; Trouble Isolation ProcedureUse this procedure onl
Chapter 4: TroubleshootingTo check the LEDs85To check the LEDsIf you see a failure with the on/off switch backlight LED, replace the ON/OFF board. If
Chapter 4: TroubleshootingSoftware Revisions86Software Revisions• Select About Infiniium... from the Help Menu.A dialog box appears showing the curren
Chapter 4: TroubleshootingTo check probe power outputs87To check probe power outputsProbe power outputs are on the front panel, surrounding each BNC i
Chapter 4: TroubleshootingTo check probe power outputs88
5ESD Precautions 90Tools Required 90To return the oscilloscope to Agilent Technologies for service 91To remove and replace the cover, top plate,
Chapter 1: General InformationPerformance-Enhanced Versus Standard Models9Performance-Enhanced Versus Standard ModelsIn the fall of 2009, Agilent star
90Replacing AssembliesUse the procedures in this chapter when removing and replacing assemblies and parts in the Agilent Technologies oscilloscopes.In
Chapter 5: Replacing AssembliesTo return the oscilloscope to Agilent Technologies for service91WARNING SHOCK HAZARD!When the bulk 12V power supply is
Chapter 5: Replacing AssembliesTo remove and replace the cover, top plate, and bottom plate92To remove and replace the cover, top plate, and bottom pl
Chapter 5: Replacing AssembliesTo remove and replace the cover, top plate, and bottom plate93Figure 5-3Figure 5-48Carefully slide the cover towards th
Chapter 5: Replacing AssembliesTo remove and replace the cover, top plate, and bottom plate94T10 screws from its edges as shown in Figure 5-6. Then pu
Chapter 5: Replacing AssembliesTo remove and replace the cover, top plate, and bottom plate95Figure 5-8Figure 5-9Figure 5-1011To replace the cover, to
Chapter 5: Replacing AssembliesTo remove and replace the cover, top plate, and bottom plate96marked by lines on four sides of the hole as shown in Fig
Chapter 5: Replacing AssembliesTo remove and replace the front panel bezel and front panel circuit assembly97To remove and replace the front panel bez
Chapter 5: Replacing AssembliesTo remove and replace the front panel bezel and front panel circuit assembly98Figure 5-13Figure 5-145Remove two Torx T1
Chapter 5: Replacing AssembliesTo remove and replace the front panel bezel and front panel circuit assembly99Figure 5-156Disengage the tabs located al
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