Agilent Technologies InfiniiVision 7000 Series Service Manual
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Agilent Technologies InfiniiVision 7000 Series Service Manual

Agilent Technologies InfiniiVision 7000 Series Service Manual

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Summary of Contents for Agilent Technologies InfiniiVision 7000 Series

  • Page 1 Agilent InfiniiVision 7000 Series Oscilloscopes Service Guide...

  • Page 2: Safety Notices

    FAR 52.227-19 (June met. 1987) or any equivalent agency regulation or contract clause. Use, duplication or disclo- sure of Software is subject to Agilent Tech- nologies’ standard commercial license terms, and non-DOD Departments and Agencies of the U.S. Government will...

  • Page 3: In This Service Guide

    In This Service Guide This book provides the service information for the Agilent 7000 Series oscilloscopes. This manual is divided into these chapters: Characteristics and Specifications This chapter contains a partial list of characteristics and specifications for the Agilent InfiniiVision 7000 Series oscilloscopes.
  • Page 4 Digital Channels Because all of the oscilloscopes in the Agilent 7000 Series have analog channels, the analog channel topics in this book apply to all instruments. Whenever a topic discusses the digital channels, that information applies only to Mixed-Signal Oscilloscope (MSO) models or DSO models that have been upgraded to an MSO.

  • Page 5: Table Of Contents

    Contents Figures Tables Characteristics and Specifications Power Requirements Measurement Category Measurement Category Measurement Category Definitions Transient Withstand Capability Environmental Conditions Specifications Contact us Testing Performance Overview List of Test Equipment Fluke MET/CAL Procedures Conventions To construct the test connector (for use with MSO models only) To test digital channels (MSO models only) To verify digital channel threshold accuracy (MSO models...
  • Page 6 To verify basic oscilloscope operation To compensate the analog probes Troubleshooting Flowchart System board drawings To check the 7000 Series oscilloscope power supply To check the 7000 Series system board To check the 7000 Series display To check the fan...
  • Page 7 Contents To run the internal self-tests To verify default setup Replacing Assemblies Removing the Handle To remove the Adjustable Legs To remove Cabinet To remove the Rear Deck Assembly To remove Acquisition and Inverter assemblies To remove the Front Panel assembly To remove the Fan assembly To remove the power supply shield To remove the power supply...
  • Page 8 Contents Service Guide...

  • Page 9: Figures

    Figures Figure 1. Constructing the 8-by-2 Connector Figure 2. Setting Up Equipment for Digital Channel Threshold Accuracy Test Figure 3. Setting up Equipment for Voltage Measurement Accuracy Test Figure 4. Using a Blocking Capacitor to Reduce Noise Figure 5. Setting Up Equipment for Bandwidth Verification Test Figure 6.
  • Page 10 Figures Figure 24. Removal of inverter board Figure 25. Removing cable shield Figure 26. Removing keyboard cables Figure 27. Removing knobs Figure 28. Removing the bezel Figure 29. Removal of softkey board Figure 30. Removing front panel assembly from front deck Figure 31.

  • Page 11: Tables

    Tables Table 1. List of test equipment Table 2. Conventions Table 3. Materials required to construct the test connectors Table 4. Equipment Required to Test Digital Channel Threshold Accuracy Table 5. Threshold Accuracy Voltage Test Settings Table 6. Equipment Required to Verify Voltage Measurement Accuracy Table 7.
  • Page 12 Tables Service Guide...

  • Page 13: Characteristics And Specifications

    This chapter contains a partial list of characteristics and specifications for the Agilent InfiniiVision 7000 Series oscilloscopes. For a full list of Agilent InfiniiVision 7000 Series oscilloscopes characteristics and specifications see the data sheet. The data sheet is available at www.agilent.com/find/7000.

  • Page 14: Power Requirements

    Characteristics and Specifications Power Requirements Line voltage, frequency, and power Line 100- 120 Vac, 50/60/400 Hz 100- 240 Vac, 50/60 Hz 120 W max 7000 Series Oscilloscopes Service Guide...

  • Page 15: Measurement Category

    Characteristics and Specifications Measurement Category Measurement Category The InfiniiVision 7000 Series oscilloscope is intended to be used for measurements in Measurement Category I. Use this instrument only for measurements within its specified WA R N I N G measurement category.

  • Page 16: Transient Withstand Capability

    The 50 input protection mode only functions when the oscilloscope is powered on. Maximum input voltage for logic channels: C A U T I O N ±40 V peak CAT I; transient overvoltage 800 Vpk 7000 Series Oscilloscopes Service Guide...

  • Page 17: Environmental Conditions

    MAINS that comply to Overvoltage Category II, which is typical of cord- and- plug connected equipment. Pollution Degree The InfiniiVision 7000 Series Oscilloscope may be operated in environments of Pollution Degree 2 (or Pollution Degree 1). Pollution Degree Definitions Pollution Degree 1: No pollution or only dry, non- conductive pollution occurs.

  • Page 18: Specifications

    7000 Series oscilloscopes data sheet. To order a data sheet by phone, please contact your local Agilent office. A contact list is provided on the next page. The most up- to- date list is available at: www.agilent.com/find/contactus...

  • Page 19: Contact Us

    Netherlands 31 (0) 20 547 2111 Spain 34 (91) 631 3300 Sweden 0200-88 22 55 Switzerland (French) 44 (21) 8113811 (Opt 2) Switzerland (German) 0800 80 53 53 (Opt 1) United Kingdom 44 (0) 7004 666666 Other European countries: www.agilent.com/find/contactus 7000 Series Oscilloscopes Service Guide...
  • Page 20 Characteristics and Specifications 7000 Series Oscilloscopes Service Guide...

  • Page 21: Testing Performance

    To verify time scale accuracy To verify horizontal delta t accuracy To verify trigger sensitivity Agilent 7000 Series Oscilloscopes Performance Test Record This chapter explains how to verify correct oscilloscope operation and perform tests to ensure that the oscilloscope meets the performance specifications.

  • Page 22: Overview

    Performance Test Record. If a performance test fails If a performance test fails, first perform the User Cal procedure. Press the following keys to access User Cal: Utility Service Start User Cal. 7000 Series Oscilloscopes Service Guide...

  • Page 23: List Of Test Equipment

    Note: if a BNC blocking capacitor is not available use an Agilent 10240-70001 + SMA blocking capacitor. Agilent 1250-0774 or Agilent 11742A + Pomona 4288 + Pomona 5088A Adapter (qty 3) N(m) to BNC(f) Agilent 1250-0780 7000 Series Oscilloscopes Service Guide...
  • Page 24 Agilent 0960-0301 * Required only for testing digital channels of oscilloscopes that have the MSO option. Most parts and equipment are available at www.agilent.com. See respective manufacturer’s websites for their equipment. † These parts available at www.parts.agilent.com at the time this manual was published.

  • Page 25: Fluke Met/Cal Procedures

    Testing Performance Fluke MET/CAL Procedures Fluke MET/CAL procedures are available for the 7000 Series oscilloscopes. The MET/CAL badge with “PROCEDURES AVAILABLE” signifies that Fluke has created Warranted MET/CAL procedures to verify the performance of this instrument using MET/CAL metrology software. These procedures can be obtained from Fluke.

  • Page 26: To Construct The Test Connector (For Use With Mso Models Only)

    Testing Performance To construct the test connector (for use with MSO models only) Agilent 7000 Series oscilloscopes that have digital channels enabled require the test connector described below. Follow the steps to build the test connector. Materials required to construct the test connectors...

  • Page 27: Figure 1 Constructing The 8-By-2 Connector

    Testing Performance Jumper (2) Ground Lead (from scope’s MSO cable) Signal Lead (from scope’s MSO cable) 8 x 2 Berg Strip BNC Panel Mount Connector Constructing the 8-by-2 Connector Figure 1 7000 Series Oscilloscopes Service Guide...

  • Page 28: To Test Digital Channels (Mso Models Only)

    5 Use steps 2 and 3 to test the following sets of digital channels. After you test one set of digital channels, remove them before connecting the next set. • D4, D5, D6, D7 • D8, D9, D10, D11 • D12, D13, D14, D15 7000 Series Oscilloscopes Service Guide...

  • Page 29: To Verify Digital Channel Threshold Accuracy (Mso Models Only)

    Testing Performance To verify digital channel threshold accuracy (MSO models only) This test verifies the digital channel threshold accuracy specification of the Agilent 7000 Series oscilloscopes. Threshold accuracy test limits = ±(100 mV + 3% of threshold setting) When to Test You should perform this test every 12 months or after 2000 hours of operation, whichever comes first.

  • Page 30: Table 4 Equipment Required To Test Digital Channel Threshold Accuracy

    3 Use the 8- by- 2 test connector and the BNC cable assembly to connect digital channels D0- D7 to one side of the BNC Tee. Then connect the D0- D7 ground lead to the ground side of the 8- by- 2 connector. See Figure 7000 Series Oscilloscopes Service Guide...
  • Page 31 User. 7 Press the User softkey to the right of the D7 - D0 softkey, then turn the Entry knob ( ) on the front panel of the 7000 Series Oscilloscopes Service Guide...

  • Page 32: Table 5 Threshold Accuracy Voltage Test Settings

    10 mV, until the activity indicators for digital channels D7- D0 are all at digital high levels. Record the oscilloscope calibrator voltage in the Performance Test Record (see page 57). 7000 Series Oscilloscopes Service Guide...

  • Page 33: To Verify Voltage Measurement Accuracy

    • Full scale is defined as 32 mV on the 2 mV/div range. • Full scale on all other ranges is defined as 8 divisions times the V/div setting. *1 LSB = 0.4% of full scale 7000 Series Oscilloscopes Service Guide...
  • Page 34 Adjust the channel 1 position knob to place the baseline at 0.5 major division from the bottom of the display. b Set the Volts/Div setting to the value in the first line in Table 7000 Series Oscilloscopes Service Guide...

  • Page 35: Table 7. Settings Used To Verify Voltage Measurement

    Y1 cursor on the baseline of the signal. 3 Use the BNC tee and cables to connect the oscilloscope calibrator /power supply to both the oscilloscope and the multimeter (see Figure 7000 Series Oscilloscopes Service Guide...

  • Page 36: Figure 3. Setting Up Equipment For Voltage Measurement Accuracy

    Table 7. If a result is not within the test limits, go to the “Troubleshooting” chapter. Then return here. 6 Continue to check the voltage measurement accuracy with the remaining Volts/div setting values in Table 7000 Series Oscilloscopes Service Guide...

  • Page 37: Figure 4. Using A Blocking Capacitor To Reduce Noise

    SMA blocking capacitor, adapter, and cap. See “Blocking capacitor and shorting cap” the equipment list on page 23 for details. Blocking Capacitor BNC shorting To oscilloscope input Using a Blocking Capacitor to Reduce Noise Figure 4 7000 Series Oscilloscopes Service Guide...

  • Page 38: To Verify Bandwidth

    Test limits at 2 mV/div to 5 V/div • All channels (- 3 dB) • dc to 350 MHz 100 MHz Models Test limits at 2 mV/div to 5 V/div • All channels (- 3 dB) • dc to 100 MHz 7000 Series Oscilloscopes Service Guide...

  • Page 39: Table 8 Equipment Required To Verify Bandwidth

    Table 8 Recommended Equipment Critical Specifications Model/Part Signal Generator 100 kHz - 1 GHz at 200 mVrms Agilent N5181A, E4400B, or 8648A Power Meter/Sensor 1 MHz - 1 GHz ±3% accuracy Agilent E4418B/8482A Power Splitter outputs differ by < 0.15 dB...
  • Page 40 N to BNC adapter Power Splitter Power Sensor N Cable Power Meter Setting Up Equipment for Bandwidth Verification Test Figure 5 2 Set up the power meter. Set the power meter to display measurements in units of watts. 7000 Series Oscilloscopes Service Guide...
  • Page 41 8 Note the reading on the power meter and covert to Vrms using the expression: For example, if the power meter reading is 892 uW, then = (892*10 * 50 ) = 211.2 mV 1MHz 7000 Series Oscilloscopes Service Guide...
  • Page 42 = 20 log freq freq     Vout Example Pmeas = 892 uW 1_MHz Std Dev(n) = 210.4 mV 1MHz Pmeas = 687 uW max_freq Std Dev(n) = 161.6 mV max freq 7000 Series Oscilloscopes Service Guide...
  • Page 43 17 Turn off the current channel and turn on the next channel using the channel keys. 18 Repeat steps 3 through 17 for the remaining channels, setting the parameters of the channel being tested where appropriate. 7000 Series Oscilloscopes Service Guide...

  • Page 44: To Verify Time Scale Accuracy

    Adjust the oscilloscope’s trigger level so that the rising edge of the waveform at the center of the screen is located where the center horizontal and vertical grid lines cross (center screen). f Ensure the horizontal position control is set to 0.0 seconds. 7000 Series Oscilloscopes Service Guide...
  • Page 45 Use the following formula to calculate the test limits. TSA Limit: ± (15 + 2 * YrsSinceMfr) ppm g Record the result and compare it to the limits in the Performance Test Record (see page 57). 7000 Series Oscilloscopes Service Guide...

  • Page 46: To Verify Horizontal Delta T Accuracy

    Press the AutoScale key. e Set the time base to 20 s/div. f Press the Menu/Zoom key, then set the Time Ref softkey to Left. g Adjust the Trigger Level knob to obtain a stable display. 7000 Series Oscilloscopes Service Guide...

  • Page 47: To Verify Trigger Sensitivity

    You will then decrease the amplitude of the signal to the specified levels, and check to see if the oscilloscope is still triggered. 7000 Series Oscilloscopes Service Guide...

  • Page 48: Table 11 Equipment Required To Verify Trigger Sensitivity

    8648A waves Power splitter Outputs differ < 0.15 dB Agilent 11667A Cable BNC, Qty 3 Agilent 10503A Adapter N (m) to BNC (f), Qty 3 Agilent 1250-0780 BNC (f) to BNC (m) Feedthrough Agilent 0960-0301 7000 Series Oscilloscopes Service Guide...

  • Page 49: Test Internal Trigger Sensitivity (All Models)

    1 Connect the equipment (see Figure a Connect the signal generator output to the oscilloscope channel 1 input. Signal Oscilloscope Generator N to BNC adapter N Cable Setting Up Equipment for Internal Trigger Sensitivity Test Figure 6 7000 Series Oscilloscopes Service Guide...
  • Page 50 “Troubleshooting” chapter. Then return here. h Record the result as Pass or Fail in the Performance Test Record (see page 57). 3 Repeat this procedure for the remaining oscilloscope channels. 7000 Series Oscilloscopes Service Guide...

  • Page 51: Test External Trigger Sensitivity (2-Channel Models)

    350 MHz (MSO/DSO7032A/B), 200 mV • 100 MHz (MSO/DSO7012A/B), 200 mV Trigger range = +/- 8 V • 500 MHz (MSO/DSO7052A/B), 500 mV • 350 MHz (MSO/DSO7032A/B), 500 mV • 100 MHz (MSO/DSO7012A/B), 500 mV 7000 Series Oscilloscopes Service Guide...

  • Page 52: Figure 7. Setting Up Equipment For 2-Channel External Trigger

    Connect the power sensor to the other output of the power splitter. Oscilloscope Signal Generator Feedthrough Power Splitter N to BNC adapter N Cable Power Sensor Power Meter Setting Up Equipment for 2-Channel External Trigger Sensitiv- Figure 7 ity Test 7000 Series Oscilloscopes Service Guide...
  • Page 53 When it is not flashing, the oscilloscope is triggered. f Record the results as Pass or Fail in the Performance Test Record (see page 57). If the test fails, see the “Troubleshooting” chapter. Then return here. 7000 Series Oscilloscopes Service Guide...

  • Page 54: Test External Trigger Sensitivity (4-Channel Models)

    Test Record (see page 57). Test External Trigger Sensitivity (4-channel models) This test applies to 4- channel models only. Verify the external trigger sensitivity at these settings: • All 4- channel models: 500 MHz, 500 mV 7000 Series Oscilloscopes Service Guide...
  • Page 55 Connect the power sensor to the other output of the power splitter. Oscilloscope Signal Generator Feedthrough Power Splitter N to BNC adapter Power Sensor N Cable Power Meter Setting Up Equipment for 4-Channel External Trigger Sensitiv- Figure 8 ity Test 7000 Series Oscilloscopes Service Guide...
  • Page 56 When it is not flashing, the oscilloscope is triggered. 8 Record the results as Pass or Fail in the Performance Test Record (see page 57). If the test fails, see the “Troubleshooting” chapter. Then return here. 7000 Series Oscilloscopes Service Guide...

  • Page 57: Agilent 7000 Series Oscilloscopes Performance Test Record

    Testing Performance Agilent 7000 Series Oscilloscopes Performance Test Record Serial No. ______________________________________ Test by _____________________________ Test Interval ____________________________________ Work Order No. ______________________ Recommended Next Testing ________________________ Temperature ____________ Threshold Specification Limits Ch D7-D0 Ch D15-D8 5 V - 250 mV 4.750 V...
  • Page 58 500 mV at 350 MHz ________ ________ ________ ________ 7012 500 mV at 100 MHz ________ ________ ________ ________ External trigger (7104, 7054, 7034, 7014) 500 mV at 500 MHz ________ ________ ________ ________ * Where applicable 7000 Series Oscilloscopes Service Guide...

  • Page 59: Calibrating And Adjusting

    Agilent InfiniiVision 7000 Series Oscilloscope Service Guide Calibrating and Adjusting This chapter explains how to adjust the oscilloscope for optimum operating performance. You should perform self- calibration according to the following recommendations: • Every 12 months or after 2000 hours of operation •...
  • Page 60 Electrostatic discharge (ESD) can damage electronic components. When you use any of the procedures in this chapter, use proper ESD precautions. As a minimum, place the oscilloscope on a properly grounded ESD mat and wear a properly grounded ESD strap. 7000 Series Oscilloscopes Service Guide...

  • Page 61: User Calibration

    2 Connect short (12 inch maximum) equal length cables to each analog channel’s BNC connector on the front of the oscilloscope. You will need two equal- length cables for a 2- channel oscilloscope or four equal- length cables for a 4- channel oscilloscope. 7000 Series Oscilloscopes Service Guide...

  • Page 62: Figure 9 User Calibration Cable For 2-Channel Oscilloscope

    TRIG OUT To Channel 1 To Channel 2 User Calibration cable for 2-channel oscilloscope Figure 9 b For a 4- channel oscilloscope, connect BNC tees to the equal- length cables as shown below. Then connect a 7000 Series Oscilloscopes Service Guide...

  • Page 63: Figure 10 User Calibration Cable For 4-Channel Oscilloscope

    4 Press the Utility key, then press the Service softkey. 5 Begin the Self Cal by pressing the Start User Cal softkey. 6 When the User Cal is completed, set the rear- panel CALIBRATION switch to PROTECTED. 7000 Series Oscilloscopes Service Guide...

  • Page 64: User Cal Status

    Note that AutoProbes do not need to be calibrated, but InfiniiMax probes can be calibrated. Results: User Cal date: Change in temperature since last User Cal: Failure: Comments: Probe Cal Status: 7000 Series Oscilloscopes Service Guide...

  • Page 65: Troubleshooting

    Agilent InfiniiVision 7000 Series Oscilloscope Service Guide Troubleshooting This chapter begins with suggestions for solving general problems that you may encounter with the oscilloscope. It tells you what to do in these cases: • If there is no trace display •...

  • Page 66: Solving General Problems With The Oscilloscope

    Troubleshooting Solving General Problems with the Oscilloscope This section describes how to solve general problems that you may encounter while using the Agilent 7000 Series oscilloscopes to make measurements. After troubleshooting the oscilloscope, if you need to replace parts, refer to the “Replaceable Parts” chapter.
  • Page 67 Check that the oscilloscope probe’s BNC connector is securely attached to the oscilloscope’s input connector. Check that the probe clips are securely connected to points in the circuit under test. Check that the circuit under test is powered on. 7000 Series Oscilloscopes Service Guide...
  • Page 68 Press the analog channel key until it is illuminated. b On models with the MSO option, press the digital channels (D15-D0) key until it is illuminated. Press the AutoScale key to automatically set up all channels. 7000 Series Oscilloscopes Service Guide...

  • Page 69: Troubleshooting The Oscilloscope

    WA R N I N G SUPPLY HEAT SINKS ! The power supply heat sinks of the 7000 Series oscilloscopes are at a high potential. This presents an electric shock hazard. Protect yourself from electric shock by keeping this area covered or by not coming in contact with the heat sinks...

  • Page 70: Equipment Required For Troubleshooting

    Otherwise, damage to the components can occur. If the cover of a 7000 Series oscilloscope is removed but the main shield remains installed and the bottom holes are not blocked, the instrument will cool properly.
  • Page 71 LEDs will briefly light up in groups from bottom to top. • Next the Agilent logo appear on the display. • Next a message will appear with tips on getting started using the oscilloscope. At this time you can press any key to remove the message and view the display.

  • Page 72: To Verify Basic Oscilloscope Operation

    If you do not see the waveform, ensure your power source is adequate, the oscilloscope is properly powered- on, and the probe is connected securely to the front- panel analog channel input BNC and to the Probe Comp terminal. 7000 Series Oscilloscopes Service Guide...

  • Page 73: To Compensate The Analog Probes

    2- channel oscilloscope, or channels 2, 3, and 4 of a 4- channel oscilloscope). Repeat the procedure for each channel. This matches each probe to each channel. The process of compensating the probes serves as a basic test to verify that the oscilloscope is functional. 7000 Series Oscilloscopes Service Guide...

  • Page 74: Troubleshooting Flowchart

    Troubleshooting Troubleshooting Flowchart The following flowchart describes how to troubleshoot the oscilloscope. Start Test Power Supply Replace Power Okay? Supply Test System Board Replace System Okay? Board Test Display Okay? Replace Display 7000 Series Oscilloscopes Service Guide...

  • Page 75: System Board Drawings

    Troubleshooting System board drawings Refer to these two drawings to locate test points on the system board. Pin 1 Pin 1 Pin 9 Fan connector System Board Test Points - Top Side Figure 12 7000 Series Oscilloscopes Service Guide...

  • Page 76: Figure 13 System Board Test Points - Bottom Side

    Troubleshooting U3202 U3300 System Board Test Points - Bottom Side Figure 13 7000 Series Oscilloscopes Service Guide...

  • Page 77: To Check The 7000 Series Oscilloscope Power Supply

    Otherwise, damage to the components can occur. If the cover of a 7000 Series oscilloscope is removed but the main shield remains installed and the bottom holes are not blocked, the instrument will cool properly.

  • Page 78: To Check The 7000 Series System Board

    Troubleshooting To check the 7000 Series system board 1 Remove the handle, tilt legs, and cabinet. 2 Check that all cable connections are securely connected from the system board to: • Power supply • Keyboard (7000 Series only) • Display (7000 Series only) •...

  • Page 79: To Check The 7000 Series Display

    6 If all cables are properly connected and none of the previous tests confirm a failure on another assembly, replace the system board. To check the 7000 Series display 1 Disconnect the power cord. 2 Check to verify that the backlight inverter cable is connected.

  • Page 80: To Check The Fan

    If the fan voltage is not approximately +8.5 Vdc, replace the system board. The proper voltage range depending on temperature is between +6.0 Vdc to +11.5 Vdc. Connector J3400 Location of the Fan Connector Figure 14 7000 Series Oscilloscopes Service Guide...

  • Page 81: To Run The Internal Self-Tests

    This returns the oscilloscope to its factory default settings and places the oscilloscope in a known operating condition. The major default settings are: Horizontal - main mode, 100 us/div scale, 0 s delay, • center time reference 7000 Series Oscilloscopes Service Guide...

  • Page 82: Figure 15 Default Setup Screen

    Display - Vectors on, 33% grid intensity, infinite • persistence off Other - Acquire mode normal, Run/Stop to Run, cursor • measurements off Default setup screen Figure 15 3 If your screen looks substantially different, replace the system board. 7000 Series Oscilloscopes Service Guide...

  • Page 83: Replacing Assemblies

    Service Guide Replacing Assemblies This chapter describes how to remove assemblies from the Agilent 7000 Series oscilloscopes. To install a replacement assembly after you have removed an old one, follow the instructions in reverse order. The parts shown in the following figures are representative and may look different from what you have in your oscilloscope.
  • Page 84 ELECTROSTATIC DISCHARGE (ESD) can damage electronic components. When doing any of the procedures in this chapter, use proper ESD precautions. As a minimum, you should place the instrument on a properly grounded ESD mat and wear a properly grounded ESD strap. 7000 Series Oscilloscopes Service Guide...

  • Page 85: Removing The Handle

    The removal of the Strap handle may also be necessary when mounting oscilloscope in a rack. 1 Using T20 TORX driver, remove the screws holding strap handle caps in place. 2 Lift Strap handle off cabinet. Removing the handle Figure 16 7000 Series Oscilloscopes Service Guide...

  • Page 86: To Remove The Adjustable Legs

    Adjustable legs must be removed prior to removing the cabinet. 1 Using a T20 TORX, remove shoulder screw and washer. 2 Pull adjustable leg assembly from cabinet. Assembly contains latching mechanism and spring. Removing adjustable leg Figure 17 7000 Series Oscilloscopes Service Guide...

  • Page 87: To Remove Cabinet

    1 Using T20 TORX, remove the three screws securing cabinet to rear deck assembly. 2 Carefully slide cabinet back away from rear deck assembly. Removing cabinet Figure 18 7000 Series Oscilloscopes Service Guide...

  • Page 88: To Remove The Rear Deck Assembly

    Figure 19 3 Carefully separate rear deck from front deck. Take care not damage extender switch. Sheet metal parts may have sharp edges. Handle with care to avoid injury. WA R N I N G 7000 Series Oscilloscopes Service Guide...

  • Page 89: Figure 20 Separating Front And Rear Deck Assemblies

    Replacing Assemblies 4 Disconnect power harness and fan cable from acquisition board. Note cable locations for re- assembly Separating front and rear deck assemblies Figure 20 7000 Series Oscilloscopes Service Guide...

  • Page 90: To Remove Acquisition And Inverter Assemblies

    The cable restraining pads that affix the display cable to the front deck are adhesive and great care should be taken when removing them so as not to damage the cable. 7000 Series Oscilloscopes Service Guide...

  • Page 91: Figure 22 Torx T10 Mounting Screw Locations

    3 Using a TORX T10 driver locate and remove 7 mounting screws. Adhesive cable restraints Note: when removing or replacing Acquisition board care should be taken so as not to damage grounding spring on front deck. TORX T10 mounting screw locations Figure 22 7000 Series Oscilloscopes Service Guide...

  • Page 92: Figure 23 Unlocking Alignment Pin

    5 Using a TORX T10 driver locate and remove the two screws securing the Dual Inverter board to the front deck. 6 Disconnect all cables, lift board off front deck. Removal of inverter board Figure 24 7000 Series Oscilloscopes Service Guide...

  • Page 93: To Remove The Front Panel Assembly

    WA R N I N G Thin sheet metal parts may have sharp edges. Handle with care to avoid injury. Removing cable shield Figure 25 2 Remove keyboard cables that extend thru front deck. Removing keyboard cables Figure 26 7000 Series Oscilloscopes Service Guide...

  • Page 94: Figure 27 Removing Knobs

    Gently pry these outward (either by hand or using a flat head screwdriver). Working your way around the bezel releasing the clips gently lift the bezel away from the front deck. Removing the bezel Figure 28 7000 Series Oscilloscopes Service Guide...

  • Page 95: Figure 29 Removal Of Softkey Board

    Removal of softkey board Figure 29 6 To remove the front panel assembly carefully release front panel clips that secure front panel assembly to the front 7000 Series Oscilloscopes Service Guide...

  • Page 96: Figure 30 Removing Front Panel Assembly From Front Deck

    Replacing Assemblies deck by pulling them clear of the sheet metal tabs or openings. Removing front panel assembly from front deck Figure 30 Front panel assembly separated from front deck Figure 31 7000 Series Oscilloscopes Service Guide...

  • Page 97: Figure 32 Separating Front Panel From Printed Circuit Board

    Separating front panel from printed circuit board Figure 32 8 Once front panel is removed assembly can be separated into individual components (control board, front panel and keypad). Front panel disassembly Figure 33 7000 Series Oscilloscopes Service Guide...

  • Page 98: Figure 34 Removing Display Assembly

    Take care while threading display cables thru front deck sheet metal openings. Display cable clips/strain reliefs must be disconnected prior to removing display assembly (see figure 22). Removing display assembly Figure 34 7000 Series Oscilloscopes Service Guide...

  • Page 99: To Remove The Fan Assembly

    Note, fan mount is soft and can be damaged by sharp sheet metal edges. Take care that the fan power cable is not damaged when pulling across sheet metal edges. Removing fan assembly Figure 35 7000 Series Oscilloscopes Service Guide...

  • Page 100: To Remove The Power Supply Shield

    TORX T20 the three screws securing the power supply cover to the rear deck. Power supply cover screw removal Figure 36 Thin sheet metal parts may have sharp edges. Handle with care to avoid injury. WA R N I N G 7000 Series Oscilloscopes Service Guide...

  • Page 101: Figure 37 Lifting Power Supply Cover Off

    Replacing Assemblies 2 Once screws have been removed, carefully remove the power supply cover by lifting the cover up and off retaining tabs on rear deck. Lifting power supply cover off Figure 37 7000 Series Oscilloscopes Service Guide...

  • Page 102: To Remove The Power Supply

    1 Disconnect all cables from power supply board. 2 Locate and remove using a TORX T10 driver the four screws securing the power supply assembly to the rear deck. Removing the power supply Figure 38 7000 Series Oscilloscopes Service Guide...

  • Page 103: To Remove The Ac Input Board

    4 Slide assembly to right and lift out of rear deck. 5 Take care that you do not damage the switch extender during removal. Ground Wire Removing the AC input board Figure 39 7000 Series Oscilloscopes Service Guide...

  • Page 104: Figure 40 Removing Power Switch Extender

    6 To remove the switch extender, gently pry open the extender using a flat head screwdriver. Removing power switch extender Figure 40 Twisting the latch too much could cause it to break! C A U T I O N 7000 Series Oscilloscopes Service Guide...

  • Page 105: Replaceable Parts

    Service Guide Replaceable Parts This chapter describes how to order replaceable assemblies and parts for the Agilent 7000 Series oscilloscopes. Diagrams and parts lists are included for assemblies and hardware that you can order. Before working on the oscilloscope, read the safety summary...

  • Page 106: Ordering Replaceable Parts

    Replaceable Parts Ordering Replaceable Parts Listed Parts To order a part in the parts list, quote the Agilent Technologies part number, indicate the quantity desired, and address the order to the nearest Agilent Technologies Sales Office. To find your nearest sales office go to www.agilent.com.

  • Page 107: Exchange Assemblies

    Replaceable Parts In order for Agilent Technologies to provide these advantages, please send a check or money order with each order. Mail order forms and specific ordering information are available through your local Agilent Technologies Sales Office. Addresses and telephone numbers are located in a separate document shipped with the manuals.

  • Page 108: Exploded Views

    Not all parts are shown. Your parts may be slightly different thank those shown. These views provide reference designator numbers that map to those used in the parts list table in this chapter. Exploded View 1 of 2 Figure 41 7000 Series Oscilloscopes Service Guide...

  • Page 109: Figure 42 Exploded View 2 Of

    Replaceable Parts Exploded View 2 of 2 Figure 42 7000 Series Oscilloscopes Service Guide...

  • Page 110: Replaceable Parts List

    (includes main keyboard and softkey keyboard), 7000A Series 54695-66420 2-ch keyboard PC board assembly, two pieces (includes main keyboard and softkey keyboard), 7000B Series 54695-66421 4-ch keyboard PC board assembly, two pieces (includes main keyboard and softkey keyboard), 7000B Series 7000 Series Oscilloscopes Service Guide...
  • Page 111 Washer-LK Intl T 1/2 In. .505 IN-ID (for rear BNCs, not shown) 54688-94301 ID Label 2 Ch DSO 100 MHz (DSO7012A) 54688-94302 ID Label 2 Ch MSO 100 MHz (MSO7012A) 54688-94303 ID Label 2 Ch DSO 100 MHz (DSO7012B) 7000 Series Oscilloscopes Service Guide...
  • Page 112 ID Label 4 Ch DSO 1GHz (DSO7104A) 54695-94302 ID Label 4 Ch MSO 1GHz (MSO7104A) 54695-94317 ID Label 4 Ch DSO 1GHz (DSO7104B) 54695-94318 ID Label 4 Ch MSO 1GHz (MSO7104B) 54695-94306 2-Channel BNC Label, 7000A Series 7000 Series Oscilloscopes Service Guide...
  • Page 113 Auto Probe Label MP12 54695-00101 Front Deck, 7000A Series MP12 54695-00106 Front Deck, 7000B Series MP13 54695-00104 Inverter Cable Shield MP14 54695-00601 Cable Cover MP15 2090-0947 Display LCD 12.1 Inch TFT (210x270.9x10.9mm) MP16 54695-47101 Display Gasket 7000 Series Oscilloscopes Service Guide...
  • Page 114 MP33 54695-94313 2CH Control Panel Label Overlay - Traditional Chinese, 7000A Series MP33 54695-94314 4CH Control Panel Label Overlay - Traditional Chinese, 7000A Series MP33 54695-94315 2CH Control Panel Label Overlay - Japanese, 7000A Series 7000 Series Oscilloscopes Service Guide...
  • Page 115 Power cord Part number varies by country. Contact your local Agilent sales office for replacement. 54695-61605 AC Line Filter Ground cable (not shown, see page 103 for photo) 10074C Passive Probe 10:1, 150 MHz 7000 Series Oscilloscopes Service Guide...
  • Page 116 Replaceable Parts Agilent Part Ref Des Number Description 10073C Passive Probe 10:1, 500 MHz N2863A Passive Probe 10:1, 300 MHz *Optional item. 7000 Series Oscilloscopes Service Guide...

  • Page 117: Index

    75, cleaning the instrument, power requirements, compensating your probe, probe connecting for threshold test, keyboard, removal, 10073C, contact Agilent, 10074C, N2863A, LED, startup sequence, probes digital channel lid, removal, compensating, testing, problem solving,...
  • Page 118 Index remove troubleshooting, AC input board, display, backlight inverter, equipment required, cabinet, fan, display assembly, flowchart, front panel, power supply, handle, keyboard, power supply, user calibration, power supply shield, storage lid, replaceable parts list, replacing assemblies, verify run self-tests, bandwidth, digital channel, horizontal accuracy, trigger,...
  • Page 119 (3) Make sure that the instrument is completely dry before reconnecting it to a power source. 7000 Series Oscilloscopes Service Guide...

  • Page 120: Safety Symbols

    Instruction manual symbol: the product is marked with this symbol when it is necessary for you to refer to the instruction manual in order to protect against damage to the product. Hazardous voltage symbol. Earth terminal symbol: Used to indicate a circuit common connected to grounded chassis. 7000 Series Oscilloscopes Service Guide...

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