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

Keysight Infiniium 9000 Series Service Manual

Hide thumbs Also See for Infiniium 9000 Series:
Table of Contents

Advertisement

Quick Links

Infiniium 9000 Series Oscilloscopes
SERVICE GUIDE

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Infiniium 9000 Series and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Keysight Infiniium 9000 Series

Summary of Contents for Keysight Infiniium 9000 Series

  • Page 1 Infiniium 9000 Series Oscilloscopes SERVICE GUIDE...
  • Page 2 Keysight Technologies, Inc. purpose. Keysight shall not be liable for required from all providers of commercial 1900 Garden of the Gods Road errors or for incidental or consequential...
  • Page 3 Do not proceed beyond a WARNING notice until the indicated conditions are fully understood and met. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 4: The Keysight Technologies Infiniium 9000 Oscilloscope At A Glance

    The Keysight Technologies Infiniium 9000 Oscilloscope at a Glance Ease of use with high performance The Keysight Technologies Infiniium oscilloscopes combine unprecedented ease-of-use with high-performance digitizing oscilloscope functionality to simplify your design and analysis measurement tasks. • Traditional oscilloscope front-panel interface provides direct access to the controls needed for most troubleshooting tasks.
  • Page 5 • Waveform markers A and B to check voltage or D-time at any point on the displayed waveform. Service Policy The service policy of this instrument requires replacing defective assemblies. Some assemblies can be replaced on an exchange basis. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 6: In This Service Guide

    If you have any questions after reviewing this information, please contact your local Keysight Technologies representative or contact us through our website at www.keysight.com. The Declaration of Conformity (DoC) for any Keysight product can be found at www.keysight.com/go/conformity. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 7: Table Of Contents

    Contents The Keysight Technologies Infiniium 9000 Oscilloscope at a Glance / 4 In This Service Guide / 6 1 General Information Instruments covered by this service guide / 12 Accessories supplied / 13 Specifications and Characteristics / 14 Environmental Conditions / 15...
  • Page 8 To check probe power outputs / 92 5 Replacing Assemblies To return the oscilloscope to Keysight Technologies for service / 96 To remove and replace the handle and rear cover / 97 To remove and replace the front panel bezel, front panel keyboard, touch screen, and...
  • Page 9 Front Panel / 139 Disk Drive / 140 Motherboard / 140 Display Board / 140 System Fans / 141 8 Safety Notices Warnings / 144 To clean the instrument / 145 Safety Symbols / 146 Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 10 Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 11 Infiniium 9000 Series Oscilloscopes Service Guide 1 General Information Instruments covered by this service guide / 12 Accessories supplied / 13 Specifications and Characteristics / 14 Environmental Conditions / 15 Measurement Category / 16 Setting Up the Oscilloscope / 18...

  • Page 12: General Information

    The release date of this manual is shown on the second page. This manual will be revised when necessary. 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.

  • Page 13: Accessories Supplied

    • Localized Power Cord • N2873A 10:1 Divider Passive Probe (one per scope channel) • Channel Flying Lead Set Logic Probe, MSO Cable, and Calibration Fixture (MSO models only) • Keysight I/O Libraries Suite 15.0 Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 14: Specifications And Characteristics

    Specifications that are pertinent to each test are given in Chapter 3, “Testing Performance,” starting on page 23. Specifications are valid after a 30-minute warm-up period, and within ±5°C from the temperature at which the last self-calibration was performed. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 15: Environmental Conditions

    Occasionally a temporary conductivity caused by condensation may occur. Example: General indoor environment. Pollution Degree 3: Conductive pollution occurs, or dry, non-conductive pollution occurs which becomes conductive due to condensation which is expected. Example: Sheltered outdoor environment. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 16: Measurement Category

    "Maximum Input Voltages" on page 17 Measurement Category The Keysight Infiniium 9000 Series oscilloscopes are not rated for Measurement Category II, III, or IV. Measurement Category Definitions The "Not rated for CAT II, III, IV" measurement category is for measurements performed on circuits not directly connected to MAINS.

  • Page 17: Maximum Input Voltages

    Probing technology allows for testing of higher voltages; the included N2873A 10:1 probe supports 300 Vrms or ±400 Vmax (DC+Vpeak). No transient overvoltage allowed. When measuring voltages over 30 V, use a 10:1 probe. CAUTION Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 18: Setting Up The Oscilloscope

    General Information Setting Up the Oscilloscope For detailed information on setting up the 9000 Series oscilloscope, refer to the Infiniium 9000 Series Oscilloscope User's Guide. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 19: Calibration

    Infiniium 9000 Series Oscilloscopes Service Guide 2 Calibration To run the self calibration / 20...

  • Page 20: To Run The Self Calibration

    The self calibration should only be done after the oscilloscope has run for 30 minutes at ambient temperature with the cover installed. Calibration of an oscilloscope that has not warmed up may result in an inaccurate calibration. Pull down the Utilities menu and select Calibration. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 21 Frequency: 10 MHz ±0.4 ppm = 10 MHz ±4 Hz Amplitude: 0.2 Vpeak-to-peak to 5.0 Vpeak-to-peak Wave shape: Sine or Square Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 22 "To set the calibration factors after replacing the acquisition board" on page 119 also has a little section on what to do if a self cal fails in terms of replacing assemblies. After the calibration procedure is completed, click Close. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 23: Testing Performance

    The procedures are written to minimize the number and types of test equipment and accessories required. 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...
  • Page 24 Contact Keysight Technologies for more information about the Keysight products in these lists. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 25: Performing Self-Test And Calibration

    Click Start Test to start the self test procedure. If any of the self tests fail, ensure that the failure is diagnosed and repaired before calibrating and testing performance. Perform calibration. See "To run the self calibration" on page 20. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 26: Vertical Performance Verification

    Use the two BNC-to-banana adapters to connect one end of each BNC cable to the four-wire resistance connections on the multimeter. Connect the free ends of the cables to the BNC tee as shown here. To DMM 4-wire inputs To oscilloscope channel input Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 27: Offset Accuracy Test

    1 MΩ Input Impedance: Full scale is defined as 8 vertical divisions. The major scale settings are 5 mV, 10 mV, 20 mV, 50 mV, 100 mV, 200 mV, 500 mV, 1 V, 2 V, and 5 V. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 28 Press [Default Setup], then configure the scope as follows: Pull down the Setup menu and select Acquisition. When the Acquisition Setup window appears, enable averaging and set the # of averages to 256 as shown below. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 29 Configure the scope to measure Average voltage on channel 1 as follows: Change the vertical scale of channel 1 to 5 mV/div. Click the V avg measurement on the left side of the screen. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 30 256. Record the scope's mean V avg reading in the Vzero-error column (Offset Accuracy Test tables - both the 50 Ω table and 1 MΩ table) of the Performance Test Record at the end of this chapter. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 31 Click the V avg measurement icon on the left side of the screen. When the Enter Measurement Info window appears, ensure that the Vavg function is set up as follows and then click OK: Source = Channel 2 Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 32 A fairly large number of averages are used in the scope measurements of this section to reduce measurement noise and to reduce the measurement error due to resolution. Set up the DMM to perform DC voltage measurements. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 33 Select the 50 Ω button in the Impedance section of the Channel 1 Setup dialog box. Channel 1 setup icon Set the DC supply voltage (External Supply Setting) to +60.0 mV (or +2 V for the 1 MΩ version of this test). Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 34 Record rather than the Offset Accuracy Test (50 Ω) section. You will also want to be sure to use the external supply settings and offset values from the 1 MΩ version of the Offset Accuracy Test table as they are different than the 50 Ω version. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 35: Dc Gain Accuracy Test

    Cable Assembly (2 50 Ω characteristic impedance, BNC (m) Keysight 8120-1840 required) connectors DC Power Supply 40 V Keysight 6614C Adapter BNC Tee (m)(f)(f) Keysight 1250-0781 2 Adapters 2 BNC (f) to dual banana Keysight 1251-2277 Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 36 Press [Default Setup], then configure the scope as follows: Pull down the Setup menu and select Acquisition. When the Acquisition Setup window appears, enable averaging and set the # of averages to 256 as shown below. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 37 Select the Vavg measurement as shown below. 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 Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 38 The question mark indicates that the oscilloscope could not make a reliable measurement. Therefore, any results that contain a question mark should be considered suspect and you should follow the directions above. Record the mean reading Change the DC Supply voltage to -15 mV. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 39 DC Gain Test section of the Performance Test Record. For the 50 Ω input impedance version of this test at the 5 mV/div scale setting, use the following equation: Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 40: Analog Bandwidth - Maximum Frequency Check

    Specifications Analog Bandwidth (-3 dB) DSO/MSO9404A 4 GHz DSO/MSO9254A 2.5 GHz DSO/MSO9104A 1 GHz DSO/MSO9064A 600 MHz Analog Bandwidth (-4 dB) DSO9204H 2 GHz DSO9104H 1 GHz DSO9054H 500 MHz DSO9024H 250 MHz Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 41 Keysight 1250-1200 Connections Microwave CW Power meter 9000 Series oscilloscope channel input Power splitter Power sensor cable Microwave cable SMA to BNC adapter N-type to 3.5 mm SMA adapter (part not shown) Power sensor E4413A Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 42 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 Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 43 • Source = Channel 1 • Measurement Area = Entire Display • RMS Type = AC Set the generator to apply a 50 MHz sine wave with a peak-to-peak amplitude of about 4 divisions. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 44 If a question mark appears in front of any value at the bottom of the screen, press [Clear Display] on the scope, wait for the #Avgs value to return to 16, and then record the scope reading. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 45 Scope 200 ps/div 320 ps/div 400 ps/div 800 ps/div 1.3 ns/div 1.6 ns/div 3.2 ns/div Horizontal Scale Change the scope time base to the value for the model under test in the table above. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 46 DSO9104H, and DSO9204H models. Change the scope setup as follows: Change the channel vertical scale to 10 mV/div. Reset the horizontal scale to 16 ns/div (to display 8 cycles of a 50 MHz waveform). Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 47 Click on the V rms measurement at the bottom of the screen and select Customize. When the V rms setup window appears, change the source from Channel 2 to Channel 3. Repeat steps 7 to 20 to complete measuring gains for channel 3. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 48: Time Scale Accuracy (Tsa) Test

    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 49 Max Frequency: ≥ 50 MHz Adapters, assorted 3.5 mm (f) to Precision BNC (m) Keysight 54855-67604 Connections Connect the equipment as shown in the following figure. E8257D Sine Wave Source 9000 Series oscilloscope channel input Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 50 Procedure, 9000H Set up the signal generator. Series Set the output to 10 MHz, approximately 1 Vpp sine wave. Connect the output of the signal generator to oscilloscope channel 1 using the BNC cable. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 51 The number of nanoseconds is equivalent to the time base error in ppm. TSA = ±(0.4 + 0.5(Years Since Factory Calibration)) ppm peak Record the result and compare it to the limits in Table Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 52: Performance Test Record

    500 mV/div 990 kΩ to 1.010 MΩ 1 MΩ 1 V/div 990 kΩ to 1.010 MΩ 1 MΩ 2 V/div 990 kΩ to 1.010 MΩ 1 MΩ 5 V/div 990 kΩ to 1.010 MΩ Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 53 5.0 mV 100 mV/div ±1.2 V 24.00 mV 9.0 mV 200 mV/div ±2.4 V 47.00 mV 17.0 mV 500 mV/div ±4.0 V 91.00 mV 41.0 mV 1 V/div ±4.0 V 131.00 m 81.0 mV Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 54 5 V/div ±40 V 901 mV 401 mV Channel 2 5 mV/div ±2 V 26.4 mV 1.4 mV 10 mV/div ±5 V 64.3 mV 1.8 mV 20 mV/div ±10 V 127.6 mV 2.6 mV Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 55 17.0 mV 500 mV/div ±20 V 291.0 mV 41.0 mV 1 V/div ±40 V 581 mV 81.0 mV 2 V/div ±40 V 661 mV 161 mV 5 V/div ±40 V 901 mV 401 mV Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 56 ±2 % 100 mV/div ±300 mV ±2 % 200 mV/div ±600 mV ±2 % 500 mV/div ±1.5 V ±2 % 1 V/div ±3.0 V ±2 % Channel 4 5 mV/div ±15 mV ±2 % Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 57 ±15 mV ±2 % 10 mV/div ±30 mV ±2 % 20 mV/div ±60 mV ±2 % 50 mV/div ±150 mV ±2 % 100 mV/div ±300 mV ±2 % 200 mV/div ±600 mV ±2 % Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 58 ±300 mV ±2 % 200 mV/div ±600 mV ±2 % 500 mV/div ±1.5 V ±2 % 1 V/div ±3.0 V ±2 % 2 V/div ±6.0 V ±2 % 5 V/div ±15.0 V ±2 % Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 59 10 mV/div 20 mV/div 50 mV/div 100 mV/div 200 mV/div 500 mV/div 1 V/div Channel 3 5 mV/div 10 mV/div 20 mV/div 50 mV/div 100 mV/div 200 mV/div 500 mV/div 1 V/div Channel 4 Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 60 Test limit for DSO9024H, DSO9054H, DSO9104H, and DSO9204H = greater than -4 dB Table 10 Time Scale Accuracy Limits Results Limit Calculated Measured Pass/Fail TSA Spec time scale Limit is based on years since oscilloscope's last error calibration TSA = ±(0.4 + 0.5(Years Since Calibration)) ppm Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 61: Troubleshooting

    To Clean Connectors / 90 Before You Contact Keysight / 91 To check probe power outputs / 92 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 Chapter 5, “Replacing Assemblies,”...
  • Page 62 Use the default setup when a procedure requires it. Press [Default Setup] on the front panel to set the oscilloscope to the default state. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 63: 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. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 64: Primary Trouble Isolation

    (as viewed from the rear of the oscilloscope). A series of LEDs is located in this corner of the acquisition board. Refer to "Power Supply Trouble Isolation" on page 68 for more information on decoding these LEDs. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 65 Select Self Test from the Utilities menu. Select Keyboard Test from the Self Test drop down list box, then click Start. A new window appears with a symbolic representation of the keyboard. See the folllowing figure. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 66 88. Use the following procedure to test the front-panel LED (light-emitting diode) indicators. Select Self Test from the Utilities menu. Select LED Test from the Self Test drop-down list box, then click Start Test. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 67 Complete a self calibration by following the procedures in Chapter “Calibration,” starting on page 19. If the calibration test fails, replace the acquisition board. The system is operational. Performance test the oscilloscope using the procedures in chapter 4 of this service manual. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 68: Power Supply Trouble Isolation

    If the oscilloscope still will not power on after you have followed the required steps below, refer to "Motherboard Verification" on page 80 for additional diagnosis suggestions. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 69: How To Use The Power Fault Leds

    LEDs. An in-depth discussion of this LEDs will first be presented so you understand how they operate and then the assembly level repair procedures will be discussed. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 70 The fault source refers to the input channel of the corresponding sequencer. Below is a listing of the inputs for each sequencer. Sequencer 1 Input Supply +12 V Bulk +5 V +3.3 V +2.5 V Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 71 A Reset Fault happens if the oscilloscope shuts down during the monitor phase because a supply went under voltage. This is probably due to the supply failing to an off state or the load becoming too much for the supply. Command Fault: Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 72: Assembly Level Repair

    12 V bulk power supply, the power cables, or the acquisition board. You should check the power cables first, then the bulk power supply, and finally the acquisition board. Reinstall any power supplies, cables, or acquisition boards that turned out not to be the problem. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 73 Also, there needs to be proper clearance in the rear of the oscilloscope. If the clearance is adequate then investigate the fans. If one or more are not turning then there is either a problem with the fan(s) or the fan cables. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 74: Display Trouble Isolation

    Troubleshooting Display Trouble Isolation Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 75: To Check The Backlight Inverter Voltages

    These pins can be reached at J1 on the display board MP12. Table 11 Backlight Inverter Board Input Voltages Input Pin # Backlight OFF Backlight ON 2.5 V 12 V 12 V Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 76: To Check The Display Board Video Signals

    Low Voltage Differential Signals (LVDS). Table 12 Video Signals Signal Pin Number Signal Number CLK- (LVDS pair) CLK+ GROUND (LVDS GROUND pair) GROUND GROUND +3.3 V (LVDS +3.3 V pair) +3.3 V GROUND (LVDS pair) GROUND (LVDS pair) Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 77: Front Panel Display Trouble Isolation

    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. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 78 If the procedure requires you to have the cover off, be careful not to contact these fan blades with any part of your body. For information on how to replace the display parts, see Chapter 5, “Replacing Assemblies,” starting on page 93. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 79: Front Panel Trouble Isolation

    Troubleshooting Front Panel Trouble Isolation Front Panel Trouble Isolation Follow the keyboard troubleshooting guide for just the power button. Go to 'Primary Trouble Isolation'. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 80: Motherboard Verification

    Troubleshooting 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. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 81: To Set Up The Bios

    Go to F3 Optimized Defaults and press [Enter]. Select Yes to load the defaults, then press [Enter]. Go to the Save and Exit Setup option and press [Enter] to save and exit the setup. Select Yes, then press [Enter]. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 82: Acquisition Board Trouble Isolation

    IC. However, this test has many other hardware dependencies so a failure from this test cannot necessarily be associated with any specific hardware failure. Try replacing the acquisition board and see if the test will then pass. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 83: Final Acquisition Board Troubleshooting Steps

    If this problem occurs, the SATA interface needs to be reinstalled. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 84 You can clean the connector or replace the BNC cable with a new one, and try calibration again. Failed items will be listed in Enable Details. Note that Enable Details can be clicked only once during testing; otherwise, the system will crash. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 85 BNC cable and try calibration again. If there is one line only or the square wave value is poor, compare it with other channels. If the channel is different than other channels, you need to return the oscilloscope to the factory. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 86 • After service calibration modes pass, if the STE verification mode fails with a certain channel Zero Error, 50 Ohm, Offset Accuracy, DC Gain, Analog Bandwidth, etc., please try to replace a new BNC cable and re-verify again before returning the oscilloscope to the factory. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 87: Autoprobe Board Trouble Isolation

    AutoProbe Board Trouble Isolation AutoProbe Board Trouble Isolation Inspect the cable between the AutoProbe assembly and the power board. Cable Replace bad cable. Turn unit on. Does Replace unit turn AutoProbe assembly. Go to 'Primary Trouble Isolation. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 88: Keyboard Trouble Isolation Procedure

    • If the display responds as though a key were pressed, replace the elastomeric keypad. • If the display does not respond as though a key were pressed, replace the keyboard. Re-assemble the oscilloscope. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 89: To Check The Leds

    When reassembling the oscilloscope all boards that were replaced, but turned out not to be causing the problem should be reinstalled in the oscilloscope. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 90: To Clean Connectors

    To maintain the connectors, clean them with alcohol in a well-ventilated area with the oscilloscope's power cord removed. Allow all residual alcohol moisture to evaporate, and the fumes to dissipate before powering up the oscilloscope. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 91: Before You Contact Keysight

    Click Help > About Infiniium. A dialog box similar to this one appears. Click Copy to Clipboard. Bring up a text editor, such as Notepad, and paste the copied information into the editor. Save the text editor file. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 92: To Check Probe Power Outputs

    Do not attempt to measure voltages at pins 3 through 7. Any failure may be a problem with the probe power and control assembly, the AutoProbe flex cable, the probe power and control cable, or the power board. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 93: Replacing Assemblies

    Service Guide 5 Replacing Assemblies To return the oscilloscope to Keysight Technologies for service / 96 To remove and replace the handle and rear cover / 97 To remove and replace the front panel bezel, front panel keyboard, touch screen, and...
  • Page 94 The detachable power cord is the instrument disconnecting device. It disconnects the mains circuits from the mains supply before other parts of the instrument. The front panel switch is only a standby switch and is not a LINE switch (disconnecting device). Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 95 Replacing Assemblies POWER CORD WARNING The power cord is connected to internal capacitors that may remain live for 5 seconds after disconnecting the plug from its power supply. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 96: To Return The Oscilloscope To Keysight Technologies For Service

    Replacing Assemblies 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 97: To Remove And Replace The Handle And Rear Cover

    Remove the two Torx T15 screws from the upper rear cover of the instrument as shown below (Note: handle should already be removed unlike in the picture.) Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 98 Replacing Assemblies Remove these two screws Remove the two Torx T15 screws located on the bottom rear cover of the oscilloscope (see the following figures). Remove these two screws Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 99 To replace the rear cover and handle, reverse the above procedure. PROPERLY TIGHTEN HANDLE AND SCREWS! CAUTION Tighten the handle screws to 21 in-lbs and the four rear cover screws to 18 in-lbs. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 100: To Remove And Replace The Front Panel Bezel, Front Panel Keyboard, Touch Screen, And Autoprobe Board

    Position the oscilloscope upright and disengage the series of tabs around the outside of the front bezel as shown in the following figure. Tabs on right side of instrument With the tabs disengaged, pull the front bezel off as shown in the following figure. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 101 5 in-lbs Disengage the three tabs located on the outside edge of the plastic piece covering the front panel keyboard as shown in the following figure. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 102 Top of the oscilloscope 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 Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 103 There are a series of six tabs around the outside edge holding the plastic covering to the keyboard. Disengage all of these and then separate the two pieces as shown in the following figures. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 104 Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 105 Autoprobe board. You will need some room to work with and if you fully tighten the screws on the Autoprobe board, you will have none. Once the front panel keyboard is attached, tighten the Autoprobe screws to 5 in-lbs. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 106 Note that this picture shows the front panel keyboard still attached but if you have followed the directions exactly to this point, it will already be removed Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 107 Remove the four T10 screws that attach the touch screen to the sheet metal (there are two on each side of the touch screen - right and left). See the following figure. When reattaching these screws, tighten to 5 in-lbs. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 108 Final Reassembly Note: Before placing the rear cover back on the oscilloscope, be sure to reattach the removable hard drive cover. Removable hard drive cover Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 109: To Remove And Replace The Backlight Inverter Board

    There is also one below it and then two screws on the left side of the oscilloscope in the same relative locations Pull the front panel chassis away from the main chassis as shown in the following figure. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 110 Disconnect these cables Remove these two T10 screws When you replace the inverter board, tighten the screws to 5 in-lbs and be sure to align the board over the screw holes. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 111: To Remove And Replace The Touch Screen Controller Board

    Pull the front panel chassis away from the main chassis as shown in the following figure. Front chassis after you lift it up Main oscilloscope chassis (lying on its rear panel) Touch screen controller board Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 112 T10 screws (shown in the following figure). Disconnect these cables Remove these two T10 screws When you replace the touch screen controller board, tighten the screws to 5 in-lbs and be sure to align the board over the screw holes. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 113: To Remove And Replace The Motherboard

    Disconnect the power cable and remove the handle and rear cover as described earlier. Remove the rear sheet metal by removing one T15 screw on top and two in the back. See the following three figures. Remove these two screws from the back Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 114 Pull the motherboard towards the front panel and then lift out. To reassemble the motherboard, reverse the above procedure. If you need to replace the battery on the motherboard, it is a Rayovac BR2032. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 115: To Remove And Replace The Acquisition Board Assembly

    Disconnect the power cable and remove the rear oscilloscope cover as described in previous sections. Remove the screws show in the four following figures to remove the sheet metal separating the motherboard compartment from the acquisition board compartment. First remove these three screws Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 116 Replacing Assemblies Then remove this screw This is the lower right side of the oscilloscope (as viewed from the rear of the oscilloscope). Then remove this screw Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 117 Place the oscilloscope so that it is no longer resting on its front panel, but is instead sitting on its feet (in its normal operating orientation). Then remove the screws located next to each BNC input on the front panel (see the following figure). Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 118 To reassemble the acquisition assembly, reverse these instructions. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 119: To Set The Calibration Factors After Replacing The Acquisition Board

    To run the self-test: Pull down the Utilities menu and select Self Test. Select Scope Self Test from the Self Test list. Click on Start Self Test to start the self test procedure. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 120 Language: SCPI Pull down the Utilities menu and select Calibration. Uncheck to Cal Memory Protect box to allow calibration. Click on Start to start the calibration procedure. Follow the on-screen instructions as calibration proceeds. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 121: To Remove And Replace The Power Supply

    Remove these screws to lift the power supply and its encasement out. Remove the screws shown in the previous figure and lift the power supply encasement out of the oscilloscope. Remove the connections to the power supply (in the following figure). Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 122 Replacing Assemblies Brown Disconnect Blue the 8 pin Green connector from here as well Unscrew all of these connections Remove the power supply from the bracket. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 123: To Remove And Replace The Hard Disk Drive

    Disconnect the SATA cables from the hard disk drive, remove the screws attaching it to the sheet metal, and remove it from the oscilloscope. Hard disk drive These are the SATA cables you need to disconnect from the hard disk drive Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 124 Replacing Assemblies Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 125: Replaceable Parts

    Infiniium 9000 Series Oscilloscopes Service Guide 6 Replaceable Parts Ordering Replaceable Parts / 126 Exploded Views / 127 Replaceable Parts List / 131 This chapter includes information for ordering parts. Service support for this oscilloscope is replacement of parts to the assembly level. The replaceable parts...

  • Page 126: Ordering Replaceable Parts

    Replaceable 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 127: Exploded Views

    Replaceable Parts Exploded Views Figure 3 Front Frame and Front Panel Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 128 Replaceable Parts Figure 4 Rear Compartment Assembly Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 129 Replaceable Parts Figure 5 Power Supply and Motherboard Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 130 Replaceable Parts Figure 6 Acquisition Board Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 131: Replaceable Parts List

    Test Acquisition Board 600 MHz 54903-69501 Exchange Acquisition Board 600 MHz 54901-66501 Test Acquisition Board 1 GHz 54901-69501 Exchange Acquisition Board 1 GHz 54902-66501 Test Acquisition Board 2.5 GHz 54902-69501 Exchange Acquisition Board 2.5 GHz Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 132 0960-2939 Motherboard 945GM Flex-ATX 4 GB * 3160-4331 Heat sink and fan assembly M890 only * 54904-94309 Label DSO9064A 54904-94315 Label DSO9404A 54904-94313 Label DSO9254A 54904-94311 Label DSO9104A 54904-94308 Label MSO9064A 54904-94314 Label MSO9404A Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 133 Touchscreen / Display Assembly MP18 0950-5445 Inverter DC to AC 4-watt 2-output MP19 54904-68706 Hard Drive Replacement Kit WinXP M885 motherboard 0960-2789 MP19 54904-83501 Imaged HDD for M885 WinXP motherboard (Svc Ctr only) * Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 134 BNC (f)-(f) barrel 54904-61606 Cable - USB Device 54904-61613 Cable - ATX Power 54904-61619 Cable - ATX Power * 54904-61612 Cable - Bulk Power (replaced by 54904-61631) 54904-61631 Cable - Bulk Power (nickel contacts) Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 135 - South Africa 8120-0674 power cord - Thailand and Philippines 8121-1808 power cord - Brazil 8121-1637 power cord - Taiwan 8121-1633 power cord - Cambodia * Motherboard serial #SG50540101 or higher, or MY50540101 or higher Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 136 Replaceable Parts Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 137: Theory Of Operation

    Infiniium 9000 Series Oscilloscopes Service Guide 7 Theory of Operation Block-Level Theory / 138 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.

  • Page 138: Block-Level Theory

    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. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 139: Monitor Assembly

    A conductive element on the inside of each key shorts a gap on the underlying keyboard circuit board. The keyboard controller detects this short and sends the proper keypress information to the system controller on the motherboard. Twelve knobs are located on the front panel. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 140: Disk Drive

    CDROM, hard disk drive interface, PCI buses, etc. Display Board The Display Board controls the flat-panel display monitor. It translates the video signals from the motherboard's on-board video system to the Low Voltage Differential Signal (LVDS) signals that drive the monitor. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 141: System Fans

    There are five fans: two larger fans that draw air out of the rear of the instrument, two medium fans that are positioned over each ADC to give additional cooling, and one small fan positioned over the trigger IC. They are all controlled by the main FPGA. Infiniium 9000 Series Oscilloscopes Service Guide...
  • Page 142 Theory of Operation Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 143: Safety Notices

    Infiniium 9000 Series Oscilloscopes Service Guide 8 Safety Notices Warnings / 144 To clean the instrument / 145 Safety Symbols / 146 This apparatus has been designed and tested in accordance with the following safety standards and has been supplied in a safe condition: IEC 61010-1:2010;...

  • Page 144: Warnings

    • Do not operate the instrument in the presence of flammable gasses or fumes. Operation of any electrical instrument in such an environment constitutes a definite safety hazard. • Do not use the instrument in a manner not specified by the manufacturer. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 145: To Clean The Instrument

    Clean the external surfaces of the instrument with a soft cloth dampened with a mixture of mild detergent and water. Make sure that the instrument is completely dry before reconnecting it to a power source. Infiniium 9000 Series Oscilloscopes Service Guide...

  • Page 146: Safety Symbols

    Hazardous voltage symbol. Earth terminal symbol: Used to indicate a circuit common connected to grounded chassis. Infiniium 9000 Series Oscilloscopes Service Guide...

This manual is also suitable for:

Dso9064aDso9104aDso9254aDso9404aMso9064aMso9104a ... Show all

Table of Contents

Save PDF