Keysight 9000 Series Service Manual
  1. Manuals
  2. Brands
  3. Keysight Manuals
  4. Test Equipment
  5. 9000 Series
  6. Service manual
Keysight 9000 Series Service Manual

Keysight 9000 Series Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Keysight Infiniium
9000 Series Oscilloscopes
Service Guide

Advertisement

Table of Contents
loading

Related Manuals for Keysight 9000 Series

Summary of Contents for Keysight 9000 Series

  • Page 1 Keysight Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 3 Service Guide Publication Number 54904-97021 July 2017 Infiniium 9000 Series Oscilloscopes...
  • Page 4 The Keysight Technologies Infiniium 9000 Oscilloscope at a Glance Ease of use with high performance Acquisition and general controls start and stop the scope and do basic setup The Keysight Technologies Infiniium oscilloscopes combine unprecedented ease-of-use with high- • Run and stop controls for continuous or single performance digitizing oscilloscope functionality to acquisitions.

  • Page 5: In This Service Guide

    In This Service Guide This book provides the service documentation for the Keysight Technologies 9000 Series oscilloscopes. It is divided into eight chapters. Chapter 1, "General Information," provides information about which oscilloscopes are covered by this manual, environmental requirements, and oscilloscope dimensions.
  • Page 7 Instruments covered by this service guide 8 Accessories supplied 9 Specifications and Characteristics 9 Environmental Conditions 10 Measurement Category 10 Setting Up the Oscilloscope 11 General Information...

  • Page 8: Instruments Covered By This Service Guide

    If you have an oscilloscope that was manufactured after the release of this manual, please check the Keysight Technologies website at www.keysight.com to see whether a newer version of this manual is available. The following 9000 Series oscilloscopes are covered in this guide.

  • Page 9: Accessories Supplied

    • Keysight I/O Libraries Suite 15.0 Specifications and Characteristics For complete specifications and characteristics, direct your web browser to www.keysight.com and perform a search for the oscilloscope’s model number. Then select “Data Sheets” from the Library. Specifications that are pertinent to each test are given in the "Testing Performance" chapter.

  • Page 10: Environmental Conditions

    Example: Sheltered outdoor environment. Measurement Category Measurement Category The Keysight Infiniium 9000 Series oscilloscopes are not rated for Measurement Category II, III, or IV. Measurement Category Definitions Measurement Category II is for measurements performed on circuits directly connected to the low voltage installation.

  • Page 11: Setting Up The Oscilloscope

    Chapter 1: General Information Setting Up the Oscilloscope Setting Up the Oscilloscope For detailed information on setting up the 9000 Series oscilloscope, refer to the Infiniium 9000 Series Oscilloscope User’s Guide.
  • Page 12 Chapter 1: General Information Setting Up the Oscilloscope...
  • Page 13 To run the self calibration 14 Calibration...

  • Page 14: To Run The Self Calibration

    • when you replace the hard drive or any other assembly, • when the oscilloscope’s operating temperature (after the 30-minute warm-up period) is more than ±5 °C different from that of the last calibration. Equipment Required Equipment Critical Specifications Keysight Part Number Ω Ω BNC Cable characteristic impedance BNC cable...
  • Page 15 Chapter 2: Calibration To run the self calibration Figure 1 Clear this check box before starting calibration Click here to start calibration Click Start, then follow the instructions on the screen. The routine will ask you to do the following things in sequence: a Decide if you want to perform the Time Scale Calibration.
  • Page 16 Chapter 2: Calibration To run the self calibration...

  • Page 17: Table Of Contents

    Performance Test Interval 18 Performing Self-Test and Calibration 19 Vertical Performance Verification 20 To test input impedance 21 Offset Accuracy Test 22 DC Gain Accuracy Test 29 Analog Bandwidth - Maximum Frequency Check 35 Time Scale Accuracy (TSA) 42 Performance Test Record 45 Testing Performance...

  • Page 18: Performance Test Interval

    The test equipment in these lists are ones that are currently available for sale by Keysight at the time of writing this document. In some cases, the test procedures use features specific to the test equipment in the recommended equipment list.

  • Page 19: Performing Self-Test And Calibration

    Chapter 3: Testing Performance Performing Self-Test and Calibration Performing Self-Test and Calibration 1 Warm up the oscilloscope for at least 30 minutes. 2 Perform self tests. a Pull down the Utilities menu and select Self Test. b Select Scope Self Test from the Self Test list. c Click Start Test to start the self test procedure.

  • Page 20: Vertical Performance Verification

    Vertical Performance Verification This section contains the following vertical performance verification: • Impedance Test • Offset Accuracy Test • DC Gain Accuracy Test • Analog Bandwidth Test • Time Scale Accuracy (TSA)

  • Page 21: To Test Input Impedance

    50 Ω and 1 MΩ inputs. Specification: 1 MΩ ±1% and 50 Ω ±2.5% Equipment Required Equipment Critical Specifications Recommended Model/Part Digital Multimeter Measure resistance (4-wire) at better than Keysight 34401A ±0.1% accuracy Cables (2) Keysight 10503A Adapter BNC Tee (m)(f)(f) Keysight 1250-0781 Adapters (2)

  • Page 22: Offset Accuracy Test

    Equipment Required Description Critical Specifications Recommended Model/ Part Numbers Digital Multimeter DC voltage measurement accuracy better than ±0.1% of reading Keysight 34401A or Keysight 3458A Cable Assembly 50Ω characteristic impedance, BNC (m) connectors Keysight 8120-1840 (2 required) DC Power Supply...
  • Page 23 Chapter 3: Testing Performance Offset Accuracy Test b When the Acquisition Setup window appears, enable averaging and set the # of averages to 256 as shown below. 3 Configure the scope to measure Average voltage on channel 1 as follows: a Change the vertical scale of channel 1 to 5 mV/div.
  • Page 24 Chapter 3: Testing Performance Offset Accuracy Test c When the Enter Measurement Info window appears, ensure that the V avg function is set up as follows and then click OK: Source = Channel 1 Measurement Area = Entire Display 4 Press [Clear Display] on the scope and wait for the #Avgs value (top left corner of screen) to return to 256.
  • Page 25 Chapter 3: Testing Performance Offset Accuracy Test 5 Change the vertical scale of channel 1 to 10 mV/div, press [Clear Display], wait for the #Avgs value (top left corner of screen) to return to 256 and then record the scope V avg reading in the V zero-error column (Offset Accuracy Test tables - both the 50 Ω...
  • Page 26 BNC (f) to dual banana 6614C DC Supply (1251-2277) Channel Input on 9000 Series Oscilloscope Notes: • Where it is used, it is important to connect the BNC Tee adapter directly to the scope channel input to minimize ground potential differences and to ensure that the DMM measures the input voltage to the scope channel as accurately as possible.
  • Page 27 Chapter 3: Testing Performance Offset Accuracy Test 16 Set the channel 1 offset value to 60.0 mV and the impedance to 50 Ω (or to an offset of 2 V and the impedance to 1 MΩ if this is your second pass through this test and you are using the 1 MΩ input impedance version) by: a Pull down the Setup menu and select Channel 1 or click the Channel 1 setup icon.
  • Page 28 Chapter 3: Testing Performance Offset Accuracy Test 19 Change the channel 1 offset value to -60.0 mV (or -2 V for the 1 MΩ version of this test). 20 Set the DC supply voltage to -60.0 mV (or -2 V for the 1 MΩ version of this test). 21 Press [Clear Display] on the scope, wait for the #Avgs value (top left corner of screen) to return to 256 and then record the DMM voltage reading as V and the scope Vavg reading as V...

  • Page 29: Dc Gain Accuracy Test

    Equipment Required Description Critical Specifications Recommended Model/ Part Numbers Digital Multimeter DC voltage measurement accuracy better than ±0.1% of Keysight 34401A or reading Keysight 3458A Cable Assembly 50Ω characteristic impedance, BNC (m) connectors Keysight 8120-1840 (2 required) DC Power Supply...
  • Page 30 BNC (f) to dual banana 6614C DC Supply (1251-2277) Channel Input on 9000 Series Oscilloscope Notes: • Where it is used, it is important to connect the BNC Tee adapter directly to the scope channel input to minimize ground potential differences and to ensure that the DMM measures the input voltage to the scope channel as accurately as possible.
  • Page 31 Chapter 3: Testing Performance DC Gain Accuracy Test b When the Acquisition Setup window appears, enable averaging and set the # of averages to 256 as shown below. 3 Set the DC Supply voltage (External Supply Setting) to +15 mV as follows: 4 Set the channel 1 vertical scale value to 5 mV/div and set the input impedance to 50 Ω.
  • Page 32 Chapter 3: Testing Performance DC Gain Accuracy Test e When the Enter Measurement Info window appears, ensure that the V avg function is set up as follows and then click OK: Source = Channel 1 Measurement Area = Entire Display 5 Press [Clear Display] on the scope, wait for the #Avgs value (top left corner of screen) to return to 256 and then record the scope's mean V avg reading in the Vscope+ column in the Offset Accuracy Test (50 Ω) section of the Performance Test Record.
  • Page 33 Chapter 3: Testing Performance DC Gain Accuracy Test 6 Change the DC Supply voltage to -15 mV. 7 Press [Clear Display] on the scope, wait for the #Avgs value to return to 256 and then record the DMM voltage reading (Vdmm- column) and the scope V avg reading (Vscope- column) in the DC Gain Test (50 Ω) section of the Performance Test Record.
  • Page 34 Chapter 3: Testing Performance DC Gain Accuracy Test 16 Calculate the offset gains for the 50 Ω test and the 1 MΩ test using the following expression and record this value in the DC Gain Test section of the Performance Test Record. Ω...

  • Page 35: Analog Bandwidth - Maximum Frequency Check

    Power Splitter 2 Resistor Power Splitter (f) Keysight 11667B Max Frequency ≥18 GHz Power Meter Keysight E-series with power sensor compatibility Keysight E4418B or E4419B Maximum Frequency ≥ 14 GHz Power Sensor Keysight E4413A Power range: -24 dBm to +16 dBm Microwave Cable 50Ω...
  • Page 36 Chapter 3: Testing Performance Analog Bandwidth - Maximum Frequency Check Connections Microwave CW 9000 oscilloscope channel input Power meter Power splitter SMA to BNC adapter Power sensor Microwave cable N-type to 3.5 mm SMA adapter (part not shown) Power sensor E4413A Notes •...
  • Page 37 Chapter 3: Testing Performance Analog Bandwidth - Maximum Frequency Check d Set the horizontal scale to 16 ns/div (to display 8 cycles of a 50 MHz waveform). Click here and enter 16E-9 e Pull down the Setup menu, select Acquisition, and set up the acquisition parameters as follows: Sin(x)/x Interpolation filter = Auto Analog Averaging = Enabled with # of Averages set to 16 samples Analog Memory Depth = Automatic...
  • Page 38 Chapter 3: Testing Performance Analog Bandwidth - Maximum Frequency Check g When the RMS voltage measurement setup window appears, configure this measurement as follows: Source = Channel 1 Measurement Area = Entire Display RMS Type = AC 7 Set the generator to apply a 50 MHz sine wave with a peak-to-peak amplitude of about 4 divisions. •...
  • Page 39 Chapter 3: Testing Performance Analog Bandwidth - Maximum Frequency Check 9 Press [Clear Display] on the scope and record the scope V rms reading in the Analog Bandwidth - Maximum Frequency Check section of the Performance Test Record (Vout @ 50 MHz). For all scope readings in this procedure, use the mean value in the Measurements display area at the bottom of the screen.
  • Page 40 Chapter 3: Testing Performance Analog Bandwidth - Maximum Frequency Check 11 Change the generator frequency to the maximum value for the model being tested as shown in the table below. It is not necessary to adjust the signal amplitude at this point in the procedure. Setting Model DSO9404A...
  • Page 41 Chapter 3: Testing Performance Analog Bandwidth - Maximum Frequency Check 16 Change the scope setup as follows: a Change the channel vertical scale to 10 mV/div. b Reset the horizontal scale to 16 ns/div (to display 8 cycles of a 50 MHz waveform). 17 Change the generator output as follows: a Reset the generator frequency to 50 MHz.

  • Page 42: Time Scale Accuracy (Tsa)

    The initial accuracy component applies to the oscilloscope’s accuracy immediately after a calibration, whether performed at the factory, by a customer, or by a Keysight service center. The aging component scales linearly from the time since the last factory calibration and adds to the initial accuracy component.
  • Page 43 Chapter 3: Testing Performance Time Scale Accuracy (TSA) Connections Connect the equipment as shown in the following figure. E8257D Sine Wave Source 9000 Oscilloscope channel input Procedure, 9000A Series 1 Configure the sine wave source to output a 0 dBm (600 mVpp) sine wave into 50 ohms with a frequency of 10.00002000 MHz.
  • Page 44 Chapter 3: Testing Performance Time Scale Accuracy (TSA) Procedure, 9000H Series 1 Set up the signal generator. a Set the output to 10 MHz, approximately 1 V sine wave. 2 Connect the output of the signal generator to oscilloscope channel 1 using the BNC cable. 3 Set up the oscilloscope: a Press [AutoScale].

  • Page 45: Performance Test Record

    Chapter 3: Testing Performance Performance Test Record Performance Test Record Keysight Technologies Keysight Infiniium 9000 Series Oscilloscopes Model Number _____________________ Tested by___________________ Serial Number ___________________________ Work Order No.___________________ Recommended Test Interval - 1 Year/2000 hours Date___________________ Recommended next test date ___________________...
  • Page 46 Chapter 3: Testing Performance Performance Test Record Ω Offset Accuracy Test (50 Vertical Scale External Offset DMM+ scope+ error+ DMM- Scope- error- zero-error zero-error ± Supply Accuracy Limit ( ±) Setting Limit ( Channel 1 0.005 V/div ±60 mV 2.55 mV 1.8 mV 0.01V/div ±120 mV...
  • Page 47 Chapter 3: Testing Performance Performance Test Record Ω Offset Accuracy Test (1 M Vertical Scale External Offset DMM+ scope+ error+ DMM- Scope- erro zero-error zero-error ± Supply Accuracy Limit ( ±) Setting Limit ( Channel 1 0.005 V/div ±2 V 26.4 mV 1.4 mV 0.01V/div...
  • Page 48 Chapter 3: Testing Performance Performance Test Record Ω DC Gain Test (50 Vertical Scale External Calculated DC Gain Error DMM+ DMM- Scope+ Scope- Supply DC Gain Test Limits Setting Error Channel 1 5 mV/div ±15 mV ±2 % 10 mV/div ±30 mV ±2 % 20 mV/div...
  • Page 49 Chapter 3: Testing Performance Performance Test Record Ω DC Gain Test (1 M Vertical Scale External Calculated DC Gain Error DMM+ DMM- Scope+ Scope- Supply DC Gain Test Limits Setting Error Channel 1 5 mV/div ±15 mV ±2 % 10 mV/div ±30 mV ±2 % 20 mV/div...
  • Page 50 Chapter 3: Testing Performance Performance Test Record Analog Bandwidth - Maximum Frequency Check Max frequency: DSO/MSO9404A = 4 GHz, DSO/MSO9254A = 2.5 GHz, DSO/MSO9104A = 1 GHz, DSO/MSO9064A = 600 MHz, DSO9024H = 250 MHz, DSO9054H = 500 MHz, DSO9104H = 1 GHz, DSO9204H = 2 GHz Measurement Vin @ 50 Vout @ 50...
  • Page 51 Chapter 3: Testing Performance Performance Test Record Test Limits Results Time Scale Limit Calculated Measured time Pass/Fail Accuracy TSA Spec scale error Limit is based on years since oscilloscope’s last calibration TSA = ±(0.4 + 0.5(Years Since Calibration)) ppm ___________ ___________ ___________...
  • Page 52 Chapter 3: Testing Performance Performance Test Record...
  • Page 53 To set up the BIOS 72 Acquisition Board Trouble Isolation - Scope Self Tests 73 AutoProbe Board Trouble Isolation 75 Keyboard Trouble Isolation Procedure 76 To check the LEDs 77 Before You Contact Keysight 78 To check probe power outputs 79 Troubleshooting...

  • Page 54: Troubleshooting

    Troubleshooting The service strategy for troubleshooting Keysight Technologies 9000 Series oscilloscopes is to isolate problems to a faulty assembly, then use the disassembly and assembly procedures in the “Replacing Assemblies” chapter to replace the defective assembly. Safety Read the Safety Notices at the back of this manual before servicing the oscilloscope. Before performing any procedure, review it for cautions and warnings.

  • Page 55: To Troubleshoot The Oscilloscope

    Chapter 4: Troubleshooting To troubleshoot the oscilloscope To troubleshoot the oscilloscope The primary procedural tool in this section is the Primary Trouble Isolation section. This section refers to sections in this chapter where the procedures are described in detail. If you are unfamiliar with this oscilloscope, start with the Primary Trouble Isolation section.

  • Page 56: Primary Trouble Isolation

    Chapter 4: Troubleshooting Primary Trouble Isolation Primary Trouble Isolation Perform power-up. Connect the oscilloscope power cord and press the power button in the lower left corner of the front panel. If the oscilloscope is working properly, it will take several minutes to start up, and the graticule will appear on the screen.
  • Page 57 Chapter 4: Troubleshooting Primary Trouble Isolation 2 If the oscilloscope shuts down without you pressing the front panel power button, unplug the AC power cord from the rear of the instrument and wait 20 to 30 seconds. Then plug the AC power cord back into the oscilloscope and press the front panel power button (or you can perform a hard shutdown by holding the power button down for 5-6 second so the power turns off and then pressing the power button again to restart the oscilloscope).
  • Page 58 Chapter 4: Troubleshooting Primary Trouble Isolation Figure 4 When you push a key or turn a knob in both directions, the corresponding symbol on this screen turns green. Knob and Key Self Test Screen 3 Press each key on the keyboard until you have pressed all keys. 4 When you press a key/knob, the bar above the corresponding key/knob symbol on the display should change from red to green.
  • Page 59 Chapter 4: Troubleshooting Primary Trouble Isolation Figure 5 LED Test Screen 3 Repeatedly push the Single button on the front panel to step through and highlight each LED symbol in the test screen. You can also step through the LEDs by clicking the [Prev] or [Next] buttons on the display screen.

  • Page 60: Power Supply Trouble Isolation

    Chapter 4: Troubleshooting Power Supply Trouble Isolation Power Supply Trouble Isolation W A R N I N G SHOCK HAZARD! Only trained service personnel who are aware of the hazards involved should perform the maintenance. Read the safety summary at the back of this book before proceeding. Failure to observe safety precautions may result in electric shock.
  • Page 61 Chapter 4: Troubleshooting How to Use the Power Fault LEDs How to Use the Power Fault LEDs The previous page showed where to look through the rear fan slots to see the upper right corner of the acquisition board. A series of 13 LEDs is separated into three sections of four LEDs each, with the Over Temperature LED by itself at the bottom (as shown in Figure 6).
  • Page 62 Chapter 4: Troubleshooting How to Use the Power Fault LEDs group. Remember these are the LEDs that specify the type of failure that occurred. The fault types are described below the table. Fault Type LED1 LED2 Sequence Reset Command External The following table then shows how to decode the bottom two LEDs in each group (LEDs 3 and 4).
  • Page 63 Chapter 4: Troubleshooting How to Use the Power Fault LEDs Sequencer 3 Input Supply -12V Bulk -6 V -5.2 V -3.8 V When a fault occurs on a given sequencer, it notifies the other two using the Fault signal. The other two sequencers report this as an External Fault as well.
  • Page 64 Chapter 4: Troubleshooting How to Use the Power Fault LEDs Please read the paragraph directly below as it discusses that a fault on one sequencer causes LEDs corresponding to other sequencers to illuminate. This is important to understand before proceeding so you know which LED is actually the root of the problem.

  • Page 65: Display Trouble Isolation

    Chapter 4: Troubleshooting Display Trouble Isolation Display Trouble Isolation...

  • Page 66: To Check The Backlight Inverter Voltages

    Chapter 4: Troubleshooting To check the backlight inverter voltages To check the backlight inverter voltages The backlight inverter board is accessed by opening the front chassis as described in the “Replacing Assemblies” chapter. Below is a picture showing what the inverter board looks like (this picture is of the back of the front chassis - the display is on the other side of this piece).

  • Page 67: To Check The Display Board Video Signals

    Chapter 4: Troubleshooting To check the display board video signals To check the display board video signals The video signals are checked on the 32-pin connector on the display board. You can use an oscilloscope with a bandwidth of at least 100 MHz to verify the signals. Even-numbered pins are closest to the PC board.

  • Page 68: Front Panel Display Trouble Isolation

    Chapter 4: Troubleshooting Front Panel Display Trouble Isolation Front Panel Display Trouble Isolation Front Panel Display Trouble Isolation Connect external monitor to VGA port. Turn unit on. Does display Replace appear on motherboard external monitor? Check display cable front panel connection to display card black? and LCD...
  • Page 69 Chapter 4: Troubleshooting Front Panel Display Trouble Isolation W A R N I N G SHOCK HAZARD! The backlight inverter assembly, which is mounted at the front corner of the oscilloscope near the flat- panel display, operates at 1.65 kV at turn on. DO NOT handle this assembly while it is in operation. An LED on the inverter board illuminates to indicate the presence of high voltage.

  • Page 70: Front Panel Trouble Isolation

    Chapter 4: Troubleshooting Front Panel Trouble Isolation Front Panel Trouble Isolation Front Panel Trouble Isolation Follow the keyboard troubleshooting guide for just the power button. Go to “Primary Trouble Isolation”.

  • Page 71: Motherboard Verification

    Chapter 4: Troubleshooting Motherboard Verification Motherboard Verification If you have been through the Power Supply Trouble Isolation section of this chapter and the oscilloscope still does not stay powered up, the problem may be with the motherboard.
  • Page 72 Chapter 4: Troubleshooting To set up the BIOS To set up the BIOS If the BIOS settings become corrupt, the Infiniium oscilloscope PC motherboard will not recognize the hard drive and the oscilloscope may not start up. To configure the motherboard BIOS parameters to the default settings, follow these steps: Connect the power cable to the oscilloscope.
  • Page 73 Chapter 4: Troubleshooting Acquisition Board Trouble Isolation - Scope Self Tests Acquisition Board Trouble Isolation - Scope Self Tests If an acquisition board has been removed by a prior procedure, reinstall it. Power up the oscilloscope and then go under Utilities > Self Test. Select the Scope Self Test option from the Self Test pull-down menu and then press the Start Test button.
  • Page 74 Chapter 4: Troubleshooting Acquisition Board Trouble Isolation - Scope Self Tests errors can be corrected using the redundancy present in the IC, the software will perform the necessary correction. • Register Test - This test verifies that all of the memory controller ASIC registers can be correctly written to and read from.

  • Page 75: Autoprobe Board Trouble Isolation

    Chapter 4: Troubleshooting AutoProbe Board Trouble Isolation AutoProbe Board Trouble Isolation AutoP robe Board Trouble Isolation Inspect the cable between the AutoP robe assembly and the power board. C able R eplace bad cable. O K? Y es Turn unit on. Does R eplace unit turn...
  • Page 76 Chapter 4: Troubleshooting Keyboard Trouble Isolation Procedure Keyboard Trouble Isolation Procedure Use this procedure only if you encounter key failures in the keyboard self test procedure. If any knobs fail, replace the keyboard assembly. Disconnect the power cord and remove the cover. 2 Remove the front panel assembly.

  • Page 77: To Check The Leds

    Chapter 4: Troubleshooting To check the LEDs To check the LEDs If any of the LEDs are not working on the front panel, the first step is to trouble shoot the acquisition assembly to make sure it is working. If it is working then replace the keyboard assembly and see if the LEDs will illuminate.
  • Page 78 If you have read this Troubleshooting chapter and have unresolved questions about troubleshooting the oscilloscope, be ready to provide system information such as the current software version and installed options. This information will be useful when you contact Keysight Technologies. To find and save system information, follow these steps: Select Help >...

  • Page 79: To Check Probe Power Outputs

    Chapter 4: Troubleshooting To check probe power outputs To check probe power outputs Probe power outputs are on the front panel, surrounding each BNC input. Use the table and figure to the Supply right to check the power output at the connectors. –3V The +12 V and –12 V supplies come from ripple regulator...
  • Page 80 Chapter 4: Troubleshooting To check probe power outputs...
  • Page 81 ESD Precautions 82 Tools Required 82 To return the oscilloscope to Keysight Technologies for service 83 To remove and replace the handle and rear cover 84 To remove and replace the front panel bezel, front panel keyboard, touch screen, and Autoprobe board 87...

  • Page 82: Replacing Assemblies

    Replacing Assemblies Use the procedures in this chapter when removing and replacing assemblies and parts in the Keysight Technologies Infiniium 9000 Series oscilloscopes. In general, the procedures that follow are placed in the order to be used to remove a particular assembly.
  • Page 83 To return the oscilloscope to Keysight Technologies for service Before shipping the oscilloscope, contact Keysight Technologies for more details. Write the following information on a tag and attach it to the oscilloscope. • Name and address of owner •...
  • Page 84 Chapter 5: Replacing Assemblies To remove and replace the handle and rear cover To remove and replace the handle and rear cover Use this procedure to remove and replace the handle and rear cover. When necessary, refer to other removal procedures. The pictures in this chapter are representative of the oscilloscope at the time of this printing.
  • Page 85 Chapter 5: Replacing Assemblies To remove and replace the handle and rear cover 7 Remove the two Torx T15 screws located on the bottom rear cover of the oscilloscope (see Figure 10 and Figure 11). Figure 10 Remove these two screws Figure 11...
  • Page 86 Chapter 5: Replacing Assemblies To remove and replace the handle and rear cover 8 Put the oscilloscope on its face (be sure the front cover is on so the display does not get damaged) and then lift up on the rear cover to remove it from the chassis as shown in Figure 12. Figure 12 9 To replace the rear cover and handle, reverse the above procedure.
  • Page 87 Chapter 5: Replacing Assemblies To remove and replace the front panel bezel, front panel keyboard, touch screen, and Autoprobe board To remove and replace the front panel bezel, front panel keyboard, touch screen, and Autoprobe board Disconnect the power cable and remove the handle and rear cover as described above in the section on removing the handle and rear cover.
  • Page 88 Chapter 5: Replacing Assemblies To remove and replace the front panel bezel, front panel keyboard, touch screen, and Autoprobe board 4 Pull up on each of the front panel knobs to remove them from the front panel keyboard as shown in Figure 15.
  • Page 89 Chapter 5: Replacing Assemblies To remove and replace the front panel bezel, front panel keyboard, touch screen, and Autoprobe board as shown in Figure 17. Figure 17 Disengage three tabs 7 There are two tabs on the edge closest to the touch screen that need to be disengaged. To disengage the one near the top of the oscilloscope, look down the edge from the top and press in on the tab (meaning press straight towards the bottom of the oscilloscope) with a flathead screwdriver while pulling up on the plastic keyboard cover / keyboard.
  • Page 90 Chapter 5: Replacing Assemblies To remove and replace the front panel bezel, front panel keyboard, touch screen, and Autoprobe board 8 Once the two inner tabs and three outer tabs have been disengaged, pull the plastic cover / front panel keyboard up from the bottom, tilting it towards the top because there is a cable connected to the top of the front panel keyboard (see Figure 19).
  • Page 91 Chapter 5: Replacing Assemblies To remove and replace the front panel bezel, front panel keyboard, touch screen, and Autoprobe board Figure 20 Be sure that this cable does not fall through this opening. When you reattach the cable to the front panel keyboard, you will need it to be accessible.
  • Page 92 Chapter 5: Replacing Assemblies To remove and replace the front panel bezel, front panel keyboard, touch screen, and Autoprobe board Figure 21 These are two of the tabs Figure 22 11 If you are replacing the front panel keyboard, please note that the front panel keyboard and the breakaway board that is about to be discussed come attached together.
  • Page 93 Chapter 5: Replacing Assemblies To remove and replace the front panel bezel, front panel keyboard, touch screen, and Autoprobe board Figure 23 Push breakaway board straight out away from the touch screen and then lift up This is the edge that breaks away from the front panel keyboard (they come attached...
  • Page 94 Chapter 5: Replacing Assemblies To remove and replace the front panel bezel, front panel keyboard, touch screen, and Autoprobe board Figure 25 The other latch Remove these two screws Once the screws are removed, disengage this latch and the one on the other side to lift up and remove board...
  • Page 95 Chapter 5: Replacing Assemblies To remove and replace the front panel bezel, front panel keyboard, touch screen, and Autoprobe board Figure 27 The touch screen is mounted on the other side of this sheet metal Remove these two display cables (white connectors) from the inverter board because they...
  • Page 96 Chapter 5: Replacing Assemblies To remove and replace the front panel bezel, front panel keyboard, touch screen, and Autoprobe board Figure 29 Remove these two screws and the This board should already two on the other side of the be removed so you can pull the touch screen touch screen cable through from the other side of the sheet metal...

  • Page 97: To Remove And Replace The Backlight Inverter Board

    Chapter 5: Replacing Assemblies To remove and replace the backlight inverter board To remove and replace the backlight inverter board Use this procedure to remove and replace the backlight inverter board. When necessary, refer to other removal procedures. The graphics in this chapter are representative of the oscilloscope at the time of this printing.
  • Page 98 Chapter 5: Replacing Assemblies To remove and replace the backlight inverter board 4 Pull the front panel chassis away from the main chassis as shown in Figure 32. Figure 32 Front chassis after you lift it up Main oscilloscope chassis (lying on its rear panel) Inverter board 5 Disconnect the cables from the backlight inverter board and remove the two T10 screws (shown in...
  • Page 99 Chapter 5: Replacing Assemblies To remove and replace the touch screen controller board To remove and replace the touch screen controller board Use this procedure to disassemble and reassemble the touch screen controller board. When necessary, refer to other removal procedures. The graphics in this chapter are representative of the oscilloscope at the time of this printing.
  • Page 100 Chapter 5: Replacing Assemblies To remove and replace the touch screen controller board 4 Pull the front panel chassis away from the main chassis as shown in Figure 35. Figure 35 Front chassis after you lift it up Main oscilloscope chassis (lying on its rear panel) Touch screen controller board 5 Disconnect the cables from the touch screen controller board and remove the two T10 screws (shown...

  • Page 101: To Remove And Replace The Motherboard

    Chapter 5: Replacing Assemblies To remove and replace the motherboard To remove and replace the motherboard Disconnect the power cable and remove the handle and rear cover as described earlier. 2 Remove the rear sheet metal by removing one T15 screw on top and two in the back. See Figure 37, Figure 38, and Figure 39.
  • Page 102 Chapter 5: Replacing Assemblies To remove and replace the motherboard Figure 39 3 Disconnect all the cables from the motherboard. 4 Remove the Torx T10 screws attaching the motherboard to the frame. (Figure 40 shows what the motherboard looks like with the rear cover of the oscilloscope removed and the cables still attached.) Figure 40 5 Pull the motherboard towards the front panel and then lift out.
  • Page 103 Chapter 5: Replacing Assemblies To remove and replace the acquisition board assembly To remove and replace the acquisition board assembly Use this procedure to remove and replace the acquisition board assembly. When necessary, refer to other removal procedures. The graphics in this chapter are representative of the oscilloscope at the time of this printing.
  • Page 104 Chapter 5: Replacing Assemblies To remove and replace the acquisition board assembly Figure 41 First remove these three screws Figure 42 Then remove this screw...
  • Page 105 Chapter 5: Replacing Assemblies To remove and replace the acquisition board assembly Figure 43 This is the lower right side of the oscilloscope (as viewed from the rear of the oscilloscope). Then remove this screw Figure 44 These are the BNCs Finally, remove these located in the upper left two screws...
  • Page 106 Chapter 5: Replacing Assemblies To remove and replace the acquisition board assembly Figure 45 These are the SATA cables that need to be removed before you remove the air diverters This is the upper part that you lift up on (the motherboard is located on the other side of this piece of sheet metal)
  • Page 107 Chapter 5: Replacing Assemblies To remove and replace the acquisition board assembly 6 Place the oscilloscope so it is once again sitting on its front side (use the front panel cover), disconnect any remaining cables connected to the acquisition board, remove all screws holding the acquisition board to the sheet metal, and then lift the acquisition board out.

  • Page 108: To Set The Calibration Factors After Replacing The Acquisition Board

    The oscilloscope under test must be warmed up (with the oscilloscope application running) for at least 30 minutes prior to the start of any performance test. Equipment Required Description Critical Specifications Recommended Keysight Model/ Part Numbers Digital Multimeter No substitute 34401A 10 MHz Signal Frequency accuracy better than 0.4 ppm...
  • Page 109 Chapter 5: Replacing Assemblies To set the calibration factors after replacing the acquisition board c Pull down the Utilities menu and select Calibration. d Uncheck to Cal Memory Protect box to allow calibration. e Click on Start to start the calibration procedure. Follow the on-screen instructions as calibration proceeds.

  • Page 110: To Remove And Replace The Power Supply

    Chapter 5: Replacing Assemblies To remove and replace the power supply To remove and replace the power supply Use this procedure to remove and replace the power supply. When necessary, refer to other removal procedures. The graphics in this chapter are representative of the oscilloscope at the time of this printing. Your unit may look different.
  • Page 111 Chapter 5: Replacing Assemblies To remove and replace the power supply Figure 48 Brown Blue Green Disconnect Unscrew all of these connections the 8 pin connector from here as well 6 Remove the power supply from the bracket.
  • Page 112 Chapter 5: Replacing Assemblies To remove and replace the hard disk drive To remove and replace the hard disk drive Use this procedure to remove and replace the hard disk drive. When necessary, refer to other removal procedures. The graphics in this chapter are representative of the oscilloscope at the time of this printing. Your unit may look different.
  • Page 113 Ordering Replaceable Parts 114 Listed Parts 114 Unlisted Parts 114 Direct Mail Order System 114 Exchange Assemblies 114 Exploded Views 115 Replaceable Parts List 119 Replaceable Parts...

  • Page 114: Replaceable Parts

    The replaceable parts include assemblies and chassis parts. Ordering Replaceable Parts Listed Parts To order a part in the parts list, quote the Keysight Technologies part number, indicate the quantity desired, and address the order to the nearest Keysight Technologies Sales Office. Unlisted Parts To order a part not listed in the parts list, include the oscilloscope part number, oscilloscope serial number, a description of the part (including its function), and the number of parts required.

  • Page 115: Exploded Views

    Chapter 6: Replaceable Parts Exploded Views Exploded Views Front Frame and Front Panel...
  • Page 116 Chapter 6: Replaceable Parts Exploded Views Rear Compartment Assembly...
  • Page 117 Chapter 6: Replaceable Parts Exploded Views Power Supply and Motherboard...
  • Page 118 Chapter 6: Replaceable Parts Exploded Views Acquisition Board...

  • Page 119: Replaceable Parts List

    • Reference designation (These will be included when the exploded views are added to this Service Guide). • Keysight Technologies part number. • Total quantity (QTY) in oscilloscope or on assembly. The total quantity is given once and at the first appearance of the part number in the list.
  • Page 120 Chapter 6: Replaceable Parts Replaceable Parts List Replaceable Parts Ref. Keysight Des. Part Description Number 54904-43201 Thermal Pad 54904-01202 Heat Spreader 54904-01203 Heat Spreader - bottom 54904-00102 Deck Acquisition 54904-68502 Fan 80 mm 54904-68503 Fan 60 mm Saddle-Wire Side Entry...
  • Page 121 54904-68715 Hard Drive Replacement Kit Win7 M890 motherboard 0960-2939 MP19 54904-83501 Imaged HDD for M885/XP-based 9000 series scopes MP19 54904-83504 Imaged 2.5 HDD for M890 Win7 motherboard (Service Centers only) * Removable hard drive only: Infiniium 90000 Q-Series Imaged HDD...
  • Page 122 Chapter 6: Replaceable Parts Replaceable Parts List Replaceable Parts Ref. Keysight Des. Part Description Number 8121-1662 power cord - Israel 8121-1599 power cord - Argentina 8121-1600 power cord - Chile 8121-1606 power cord - China 8121-1641 power cord - South Africa...
  • Page 123 Block-Level Theory 124 Power Supply Assembly 125 Monitor Assembly 125 Acquisition System 125 Front Panel 125 Disk Drive 126 Motherboard 127 Display Board 127 System Fans 127 Theory of Operation...

  • Page 124: Theory Of Operation

    Chapter 7: Theory of Operation Block-Level Theory Theory of Operation This Service Guide supports troubleshooting the Keysight Technologies oscilloscopes to assembly level. Theory of operation is included only as supplemental information. It is not comprehensive enough for component-level troubleshooting. Block-Level Theory The front panel provides: •...
  • Page 125 Power Supply Assembly The AC input to the power supply is 100–240 VAC ±10%. Maximum input power is 375 W. The AC input frequency is 50 to 60 Hz. Filtered voltages of +5 V, +3.3 V, +2.5 V, +2.25 V, +1.8 V, +1.6 V, +1.2 V, -12 V, -6 V, -5 V, and -3.8 V are supplied and distributed throughout the oscilloscope.
  • Page 126 Chapter 7: Theory of Operation Block-Level Theory Figure 7-1 Keyboard block diagram with key components version 4.0 04 /24 /2 007 A DC: RA0 , RA1, RA2, Push Button(22) Encoder Matrix Matrix(14) Caloffset: RB2, RB5, (3x8) (4x4) RB6 , RB7 Scannin g matrix 3.3V Vref...
  • Page 127 Chapter 7: Theory of Operation Block-Level Theory Motherboard The motherboard provides all system control and interface functions for the oscilloscope. It contains a CPU, ROM, and RAM; keyboard and mouse interfaces, serial and parallel interfaces, CDROM, hard disk drive interface, PCI buses, etc. Display Board The Display Board controls the flat-panel display monitor.
  • Page 128 Chapter 7: Theory of Operation Block-Level Theory...
  • Page 129 Safety Do not attempt internal ser- • Capacitors inside the instru- Safety Symbols vice or adjustment unless ment may retain a charge even Notices another person, capable of if the instrument is discon- rendering first aid and resusci- nected from its source of sup- tation, is present.
  • Page 130 WARNING The material contained in A WARNING notice this document is provided denotes a hazard. It calls © Keysight Technologies 2009, “as is,” and is subject to 2012, 2013, 2016 attention to an operating being changed, without procedure, practice, or notice, in future editions.
  • Page 132 This information is subject to change without notice. © Keysight Technologies 2009, 2012, 2013, 2016, 2017 9th Edition, July 2017 *54904-97021* 54904-97021 www.keysight.com...

Table of Contents