1. Manuals
  2. Brands
  3. Agilent Technologies Manuals
  4. Test Equipment
  5. InfiniiVision 5000 Series
  6. Service manual

Agilent Technologies 5000 Series Service Manual

Hide thumbs Also See for 5000 Series:
Table of Contents

Advertisement

Quick Links

Download this manual See also: User Manual
Agilent 5000 Series
Oscilloscopes
Service Guide
Agilent Technologies

Advertisement

Table of Contents
loading

Related Manuals for Agilent Technologies 5000 Series

Summary of Contents for Agilent Technologies 5000 Series

  • Page 1 Agilent 5000 Series Oscilloscopes Service Guide Agilent Technologies...
  • Page 2 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 receive no greater than Restricted Rights as 5000 Series Oscilloscopes Service Guide...

  • Page 3: In This Service Guide

    Replaceable Parts This chapter describes how to order replaceable assemblies and parts for the Agilent 5000 Series Oscilloscopes. It includes diagrams and parts lists for hardware that you can order. At the front of the book you will find safety notice descriptions and document warranties.
  • Page 4 Instructions for pressing Key1, then pressing Key2, then pressing Key3 are abbreviated as follows: Press Key1 & Key2 & Key3. The keys may be front panel keys, or softkeys, which are located directly below the oscilloscope display. 5000 Series Oscilloscopes Service Guide...

  • Page 5: Table Of Contents

    To verify time scale accuracy To verify horizontal Dt accuracy To verify trigger sensitivity Test Internal Trigger Sensitivity (all models) Test External Trigger Sensitivity (2-channel models) Test External Trigger Sensitivity (4-channel models) Agilent 5000 Series Oscilloscopes Performance Test Record 5000 Series Oscilloscopes Service Guide...
  • Page 6 To remove the storage lid To remove the front panel assembly To remove the keyboard assembly To remove the main shield To remove the display assembly To remove the backlight inverter board and e-field shield 5000 Series Oscilloscopes Service Guide...
  • Page 7 To remove the power supply To remove the fan To remove the system board Replaceable Parts Ordering Replaceable Parts Listed Parts Unlisted Parts Direct Mail Order System Exchange Assemblies Exploded Views Replaceable Parts List Index 5000 Series Oscilloscopes Service Guide...
  • Page 8 Contents 5000 Series Oscilloscopes Service Guide...

  • Page 9: Figures

    (4-channel models) Figure 7. User Calibration cable for 2-channel oscilloscope Figure 8. User Calibration cable for 4-channel oscilloscope Figure 9. 5000 Series start up sequence Figure 10. Example pulses Figure 11. Power supply to AC input board connector Figure 12. System board test point locations Figure 13.
  • Page 10 Figure 37. Locating and disconnecting fan cable Figure 38. Removing the fan Figure 39. Preparing to remove the system board Figure 40. Removing the system board Figure 41. Exploded View 1 of 2 Figure 42. Exploded View 2 of 2 5000 Series Oscilloscopes Service Guide...

  • Page 11: Tables

    Equipment Required to Verify Trigger Sensitivity Table 9. Performance Test Record Table 10. Equipment Required to Troubleshoot the Oscilloscope Table 11. System board test points Table 12. Display Signals on the System Board Table 13. Replaceable Parts 5000 Series Oscilloscopes Service Guide...
  • Page 12 Tables 5000 Series Oscilloscopes Service Guide...

  • Page 13: Characteristics And Specifications

    This chapter contains a partial list of characteristics and specifications for the Agilent InfiniiVision 5000 Series Oscilloscopes. For a full list of Agilent InfiniiVision 5000 Series Oscilloscopes characteristics and specifications see the data sheet. The data sheet is available at www.agilent.com/find/5000.

  • 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 5000 Series Oscilloscopes Service Guide...

  • Page 15: Measurement Category

    Characteristics and Specifications Measurement Category Measurement Category The InfiniiVision 5000 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

    5 Vrms is detected. However, the input could still be damaged, depending on the time constant of the signal. The 50 Ω input protection mode only functions when the oscilloscope C A U T I O N is powered on. 5000 Series Oscilloscopes Service Guide...

  • Page 17: Environmental Conditions

    This product is intended to be powered by MAINS that comply to Overvoltage Category II, which is typical of cord-and-plug connected equipment. Pollution Degree The InfiniiVision 5000 Series Oscilloscope may be operated in environments of Pollution Degree 2 (or Pollution Degree 1). Environmental characteristics Ambient temperature Operating –10 °C to +55 °C;...
  • Page 18 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. 5000 Series Oscilloscopes Service Guide...

  • Page 19: Specifications

    Characteristics and Specifications Specifications Please see the InfiniiVision 5000 Series Oscilloscopes Data Sheet for complete, up-to-date specifications and characteristics. To download a copy of the data sheet please visit: www.agilent.com/find/5000. Or go to the Agilent home page at www.agilent.com and search for 5000 series oscilloscopes data sheet.

  • Page 20: 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 5000 Series Oscilloscopes Service Guide...

  • Page 21: Testing Performance

    To verify time scale accuracy To verify horizontal Dt accuracy To verify trigger sensitivity Agilent 5000 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: List Of Test Equipment

    Agilent 1250-0082 or Pomona 3288 with Pomona 3533 Blocking capacitor Agilent 10240-60001 Adapter N(m) to BNC(f) Agilent 1250-0780 Ω BNC (f) to BNC (m) Feedthrough Agilent 0960-0301 Some parts and equipment are available at www.agilent.com or www.parts.agilent.com. 5000 Series Oscilloscopes Service Guide...

  • Page 23: Table 2 Conventions

    The following conventions will be used when referring to oscilloscope models throughout this chapter. Table 2 Conventions Models Referred to as: DSO5012A, DSO5014A 100 MHz Models DSO5032A, DSO5034A 300 MHz Models DSO5052A, DSO5054A 500 MHz Models 5000 Series Oscilloscopes Service Guide...

  • Page 24: To Verify Voltage Measurement Accuracy

    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 5000 Series Oscilloscopes Service Guide...

  • Page 25: Table 4. 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 to both the oscilloscope and the multimeter (see Figure 5000 Series Oscilloscopes Service Guide...
  • Page 26 Table 4. 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 5000 Series Oscilloscopes Service Guide...

  • Page 27: Figure 2. Using A Blocking Capacitor To Reduce Noise

    BNC Tee, blocking capacitor, and BNC shorting cap at the oscilloscope channel input to shunt the noise to ground. See Figure Blocking Capacitor BNC shorting To oscilloscope input Figure 2 Using a Blocking Capacitor to Reduce Noise 5000 Series Oscilloscopes Service Guide...

  • Page 28: To Verify Bandwidth

    1 MHz - 1 GHz ±3% accuracy Agilent E4418B/8482A Outputs differ by ≤ 0.15 dB Power Splitter Agilent 11667A Cable Type N (m) 24 inch Agilent 11500B Adapter Type N (m) to BNC (m) Agilent 1250-0082 5000 Series Oscilloscopes Service Guide...

  • Page 29: Figure 3. Connect Equipment For Bandwidth Test

    Power Splitter N to BNC adapter Power Sensor N Cable Power Meter Figure 3 Connect equipment for bandwidth test 2 Set up the power meter. Set the power meter to display measurements in units of watts. 5000 Series Oscilloscopes Service Guide...
  • Page 30 For example, if the power meter reading is 892 uW, then = (892*10 * 50Ω) = 211.2 mV 1MHz 9 Change the signal generator output frequency according to the maximum frequency for the oscilloscope using the following: 5000 Series Oscilloscopes Service Guide...
  • Page 31 = 20 log = -1.16 dB     210.4 211.2 15 The result from step 14 should be between +3.0 dB and -3.0 dB. Record the result in the Performance Test Record (see page 48). 5000 Series Oscilloscopes Service Guide...
  • Page 32 18 Record the results as Pass or Fail in the Performance Test Record (see page 48). 19 Repeat steps 3 through 18 for the remaining channels, setting the parameters of the channel being tested where appropriate. 5000 Series Oscilloscopes Service Guide...

  • Page 33: To Verify Time Scale Accuracy

    Agilent 10503A 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. 5000 Series Oscilloscopes Service Guide...
  • Page 34 The number of nanoseconds is equivalent to the time scale error in ppm. e Record the result and compare it to the limits in the Performance Test Record (see page 48). 5000 Series Oscilloscopes Service Guide...

  • Page 35: To Verify Horizontal Dt Accuracy

    Connect the calibrator output to the oscilloscope channel 1 input. 2 Set up the signal source. a Select Marker on the oscilloscope calibrator. b Set the calibrator for 100 µs markers (period = 100 µs). 5000 Series Oscilloscopes Service Guide...
  • Page 36 On 300 MHz and 500 MHz models, change time base to 2 ns/div and the calibrator to 5 ns markers b On 100 MHz models, change time base to 5 ns/div and the calibrator to 10 ns markers 5000 Series Oscilloscopes Service Guide...
  • Page 37 9.93 ns to 10.07 ns. If the measurements are not within the test limits, go to the “Troubleshooting” chapter. Then return here. 9 Record the results as Pass or Fail in the Performance Test Record (see page 48). 5000 Series Oscilloscopes Service Guide...

  • Page 38: To Verify Trigger Sensitivity

    >100 MHz to max bandwidth: < 200 mV • Trigger range: 8.0V DC to 100 MHz: < 250 mV >100 MHz to max bandwidth: < 500 mV • External trigger on 4-channel models: 4-channel models: DC to 100 MHz: < 500 mV 5000 Series Oscilloscopes Service Guide...

  • Page 39: Table 8 Equipment Required To Verify Trigger Sensitivity

    Agilent N5181A, Agilent E4400B, or Agilent 8648A Outputs differ ≤ 0.15 dB Power Splitter Agilent 11667A Cable Agilent 10503A Adapter N (m) to BNC (f) Agilent 1250-0780 Feedthrough 50Ω BNC (f) to BNC (m) Agilent 0960-0301 5000 Series Oscilloscopes Service Guide...

  • Page 40: Test Internal Trigger Sensitivity (All Models)

    Connect the signal generator output to the oscilloscope channel 1 input. Signal Generator Oscilloscope N to BNC adapter N Cable * 100 MHz models only. Figure 4 Connect equipment for internal trigger sensitivity test 5000 Series Oscilloscopes Service Guide...
  • Page 41 If adjusting the trigger does not help, see the “Troubleshooting” chapter. Then return here. h Record the result as Pass or Fail in the Performance Test Record (see page 48). 3 Repeat this procedure for the remaining oscilloscope channels. 5000 Series Oscilloscopes Service Guide...

  • Page 42: Test External Trigger Sensitivity (2-Channel Models)

    300 MHz (DSO5032A), 200 mV • 100 MHz (DSO5012A), 200 mV Trigger range = +/- 8 V • 500 MHz (DSO5052A), 500 mV • 300 MHz (DSO5032A), 500 mV • 100 MHz (DSO5012A), 500 mV 5000 Series Oscilloscopes Service Guide...

  • Page 43: Figure 5 Connect Equipment For External Trigger Sensitivity Test (2-Channel Models)

    Connect the power sensor to the other output of the power splitter. Signal Generator Oscilloscope Power Splitter N to BNC adapter Power Sensor N Cable Power Meter Figure 5 Connect equipment for external trigger sensitivity test (2-channel models) 5000 Series Oscilloscopes Service Guide...
  • Page 44 When it is not flashing, the oscilloscope is triggered. f Record the results as Pass or Fail in the Performance Test Record (see page 48). If the test fails, see the “Troubleshooting” chapter. Then return here. 5000 Series Oscilloscopes Service Guide...

  • Page 45: Test External Trigger Sensitivity (4-Channel Models)

    The following test is optional because External Trigger Sensitivity is a characteristic, not a specification. This test applies to 4-channel models only. Verify the external trigger sensitivity at this setting: • 100 MHz, 500 mV 5000 Series Oscilloscopes Service Guide...
  • Page 46 Connect the power sensor to the other output of the power splitter. Signal Generator Oscilloscope 50Ω Feedthrough* N to BNC adapter Power Splitter Power Sensor N Cable Power Meter * Required for all models. Figure 6 Connect equipment for external trigger sensitivity test (4-channel models) 5000 Series Oscilloscopes Service Guide...
  • Page 47 When it is not flashing, the oscilloscope is triggered. 8 Record the results as Pass or Fail in the Performance Test Record (see page 48). If the test fails, see the “Troubleshooting” chapter. Then return here. 5000 Series Oscilloscopes Service Guide...

  • Page 48: Agilent 5000 Series Oscilloscopes Performance Test Record

    Testing Performance Agilent 5000 Series Oscilloscopes Performance Test Record Table 9 Performance Test Record Serial No. ______________________________________ Test by _____________________________ Test Interval ____________________________________ Work Order No. ______________________ Recommended Next Testing ________________________ Temperature ____________ Voltage Measurement Accuracy Range Oscilloscope Calibrator Test Limits...
  • Page 49 500 mV at 300 MHz ________ ________ ________ ________ 5012A 500 mV at 100 MHz ________ ________ ________ ________ External trigger, 4-channel models 5054A, 5034A, 5014A 500 mV at 100 MHz ________ ________ ________ ________ * Where applicable 5000 Series Oscilloscopes Service Guide...
  • Page 50 Testing Performance 5000 Series Oscilloscopes Service Guide...

  • Page 51: Calibrating And Adjusting

    Agilent 5000 Series Oscilloscopes Service Guide Calibrating and Adjusting User Calibration 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 52 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. 5000 Series Oscilloscopes Service Guide...

  • Page 53: 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. 5000 Series Oscilloscopes Service Guide...

  • Page 54: Figure 7 User Calibration Cable For 2-Channel Oscilloscope

    TRIG OUT To Channel 1 To Channel 2 Figure 7 User Calibration cable for 2-channel oscilloscope b For a 4-channel oscilloscope, connect BNC tees to the equal-length cables as shown below. Then connect a 5000 Series Oscilloscopes Service Guide...

  • Page 55: Figure 8 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. 5000 Series Oscilloscopes Service Guide...

  • Page 56: User Cal Status

    Note that AutoProbes do not need to be calibrated, but InfiniiMax can be calibrated. Results: User Cal date: Change in temperature since last User Cal: Failure: Comments: Probe Cal Status: 5000 Series Oscilloscopes Service Guide...

  • Page 57: Troubleshooting

    Agilent 5000 Series Oscilloscopes Service Guide Troubleshooting Solving General Problems with the Oscilloscope Troubleshooting the Oscilloscope 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: •...

  • Page 58: 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 5000 Series Oscilloscopes to make measurements. After troubleshooting the oscilloscope, if you need to replace parts, refer to the “Replaceable Parts” chapter.
  • Page 59 Check that the probe clips are securely connected to points in the circuit under test. Check that the circuit under test is powered on. You may have pressed the AutoScale key before an input signal was available. 5000 Series Oscilloscopes Service Guide...
  • Page 60 Check that the desired oscilloscope channels are turned on. a Press the analog channel key until it is illuminated. Press the AutoScale key to automatically set up all channels. 5000 Series Oscilloscopes Service Guide...

  • Page 61: Troubleshooting The Oscilloscope

    Troubleshooting Troubleshooting the Oscilloscope The service policy for the Agilent 5000 Series Oscilloscopes is assembly level replacement. If you need parts or assistance from Agilent Technologies to repair your instrument, go to www.agilent.com and locate the service facility for your area.

  • Page 62: Equipment Required For Troubleshooting

    Otherwise, damage to the components can occur. If the cover of a 5000 Series oscilloscope is removed but the main shield remains installed and the bottom holes are not blocked, the instrument will cool properly.

  • Page 63: Figure 9 5000 Series Start Up Sequence

    The instrument will go through the basic self test to make sure all the major hardware is working correctly. Figure 9 5000 Series start up sequence 4 If the lights illuminate, then the power supply is probably working correctly.

  • Page 64: 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. 5000 Series Oscilloscopes Service Guide...

  • Page 65: 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. 5000 Series Oscilloscopes Service Guide...

  • Page 66: Troubleshooting Flowchart

    The following flowchart describes how to troubleshoot 5000 Series oscilloscope models. Start Test Power Supply Replace Power Okay? Supply Test AC Input Board Replace AC Input Okay? Board Test System Board Replace System Okay? Board Test Display Okay? Replace Display 5000 Series Oscilloscopes Service Guide...

  • Page 67: To Check The Oscilloscope Power Supply

    Otherwise, damage to the components can occur. If the cover of a 5000 Series oscilloscope is removed but the main shield remains installed and the bottom holes are not blocked, the instrument will cool properly.

  • Page 68: Figure 11 Power Supply To Ac Input Board Connector

    Remove the cable and test it for shorts or opens using the DMM. Replace the defective assembly. 7 If the voltage is 15 V ±10% only when the cable is disconnected from the AC input board, then test the AC input board. 5000 Series Oscilloscopes Service Guide...

  • Page 69: To Check The Ac Input Board

    J3201, pin 1 or 2 +12 V (+- 6%) J3201, pin 3 or 4 -12 V (+- 6%) J3201, pin 16, 17, or 18 +15 V (+- 6%) J3201, pin 19 -15 V (+- 6%) 5000 Series Oscilloscopes Service Guide...

  • Page 70: Figure 12 System Board Test Point Locations

    J3200 (mounted on other side) Pin 8, 15, or 16 (+1.5 V) Pin 12, 13, or 14 (+3.3V) Pin 9, 10, or 11 (+5V) Pin 1 (-5.2V) J2730 J2750 Figure 12 System board test point locations 5000 Series Oscilloscopes Service Guide...

  • Page 71: To Check The System Board

    5 Use the DMM to check the Inverter Power voltage (see table below). 6 If the voltage is incorrect, replace the system board. 7 If the voltage is correct, use an oscilloscope to check the LCD clock (see table below). 5000 Series Oscilloscopes Service Guide...

  • Page 72: To Check The Fan

    If the fan voltage is approximately +8.5 Vdc at room temperature, replace 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. 5000 Series Oscilloscopes Service Guide...

  • Page 73: To Run The Internal Self-Tests

    Self Test is designed to provide an 80% confidence level that the oscilloscope is operating properly. 1 Press the Utility key, then press the Service softkey. 2 Begin the internal self tests by pressing the Start Self Test softkey. 5000 Series Oscilloscopes Service Guide...

  • Page 74: To Verify Default Setup

    Trigger - Edge trigger, Auto sweep mode, 0 V level, channel • 1 source, dc coupling, rising edge slope, 60 ns holdoff time Display - Vectors on, 20% grid intensity, infinite persistence • Other - Acquire mode normal, Run/Stop to Run, cursor • measurements off 5000 Series Oscilloscopes Service Guide...

  • Page 75: Figure 14 Default Setup Screen

    Troubleshooting Figure 14 Default setup screen 3 If your screen looks substantially different, replace the system board. 5000 Series Oscilloscopes Service Guide...
  • Page 76 Troubleshooting 5000 Series Oscilloscopes Service Guide...

  • Page 77: Replacing Assemblies

    To remove the fan To remove the system board This chapter describes how to remove assemblies from the Agilent 5000 Series oscilloscopes. After you have removed an assembly, to install the replacement assembly, follow the instructions in reverse order. The parts shown in the following figures are representative and may look different than what you have in your oscilloscope.
  • Page 78 C A U T I O N Remove power before you begin to remove and replace assemblies. Do not remove or replace assemblies while the oscilloscope is turned on, or damage to the components can occur. 5000 Series Oscilloscopes Service Guide...
  • Page 79 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. 5000 Series Oscilloscopes Service Guide...

  • Page 80: To Remove The Cabinet

    3 Using your thumbs, gently push on the rear-panel connectors to slide the oscilloscope out of the cabinet. T-20 Screw Gently push on the connectors T-20 Screw Figure 15 Removing the cabinet 5000 Series Oscilloscopes Service Guide...

  • Page 81: To Remove The Handle

    2 Rotate the handle downward until it just passes the bottom of the cabinet. 3 Place cabinet face down, pull the sides of the handle out of the cabinet and remove. Figure 16 Removing handle 5000 Series Oscilloscopes Service Guide...

  • Page 82: To Remove The Storage Lid

    Push the lid all the way to the left. c Snap the right hinge into the slot. Insert hinge into slot Push Snap second hinge into place Figure 17 Installing the hinged storage lid 5000 Series Oscilloscopes Service Guide...

  • Page 83: To Remove The Front Panel Assembly

    4 Disconnect the keyboard ribbon cable from the keyboard. 5 Use a flat-blade screwdriver to the release retainer tabs and then push the panel forward. Ensure that the retainer tab on the display side moves past the rear edge of the display mount. 5000 Series Oscilloscopes Service Guide...
  • Page 84 Replacing Assemblies Deck Retainer Assembly Keyboard Ribbon Cable Note: For clarity, Fan assembly removed and areas Retainer shown cut away. Figure 19 Disconnecting ribbon cable and releasing tab retainers 5000 Series Oscilloscopes Service Guide...

  • Page 85: Figure 20 Removing The Front Panel

    Push the front panel until the two retainer tabs click into place in the deck. d Reinstall the T6 screws on the BNC connectors. e Connect the keyboard ribbon cable. f Install intensity knob. 5000 Series Oscilloscopes Service Guide...

  • Page 86: To Remove The Keyboard Assembly

    This is shown with arrows in the following figure. e Lift the board up just enough to clear the latches. f Lift both boards out being careful not to damage the ribbon cable between them. 5 Remove and replace keypads as needed. 5000 Series Oscilloscopes Service Guide...

  • Page 87: Figure 21. Removing The Keyboard Assembly

    6 When reinstalling the boards: a If you have a new main board assembly, you will need to separate the softkey board from the main keypad board. Using a needle nose pliers, carefully remove the two process tabs. 5000 Series Oscilloscopes Service Guide...
  • Page 88 Replace the knobs by supporting the back of each encoder and pushing the knob fully onto the shaft. 5000 Series Oscilloscopes Service Guide...

  • Page 89: To Remove The Main Shield

    Main Shield Figure 22 Main shield removal Thin sheet metal parts may have sharp edges. Handle with care to avoid injury. WA R N I N G 5000 Series Oscilloscopes Service Guide...

  • Page 90: Figure 23 Main Shield Reinstall

    WA R N I N G 3 To reinstall shield, carefully push it in place around the chassis taking care to align the shield with connectors, cabinet mounting screw locations, and shield tabs to chassis slots locations. 5000 Series Oscilloscopes Service Guide...

  • Page 91: To Remove The Display Assembly

    83 2 Using a small flat blade screw driver, gently pry the display and backlight inverter cables to disconnect them from the system board. Note the cable routing through the system board for reinstallation. 5000 Series Oscilloscopes Service Guide...

  • Page 92: Figure 24. Disconnecting The Display Cables

    4 Push the entire display assembly to the right to release the retaining hooks from their slots in the deck 5 Lift and remove the display assembly. 5000 Series Oscilloscopes Service Guide...

  • Page 93: Figure 25 Removing The Display Assembly

    LCD to your left. c Ensure the latch tab is seated in its hole as shown in Figure d Route the cables down through the deck hole and reconnect to the system board as shown in Figure 5000 Series Oscilloscopes Service Guide...

  • Page 94: Figure 26 Installing The Display

    Replacing Assemblies Top Locating Tab Locating Slot Retaining Hole Deck Retaining Hook Figure 26 Installing the display 5000 Series Oscilloscopes Service Guide...

  • Page 95: To Remove The Backlight Inverter Board And E-Field Shield

    3 Remove the LCD cables from the cable guides. 4 Release the top latch and lift the top of the board off the top alignment post. 5 Release the bottom latch and lift the board off the bottom alignment post. 5000 Series Oscilloscopes Service Guide...

  • Page 96: Figure 28 Removing The Backlight Inverter

    7 Unplug the supply cable from the inverter board. Top Alignment Post Top Latch LCD Cables Display Mount Cable Groove Cable Guides Supply Cable Bottom Alignment Post Bottom Latch Figure 28 Removing the backlight inverter 5000 Series Oscilloscopes Service Guide...

  • Page 97: Figure 29 Removing The Backlight Inverter Shield

    Align the holes in the inverter board with the posts on the display mount and push down until the latches snap over the board (refer to Figure 28). d Route the cables through the cable guides as shown. 5000 Series Oscilloscopes Service Guide...

  • Page 98: Figure 30 Closing The Shield

    - After closing, use your fingers to gently pinch along the perforated edge of the shield to square the corner and ensure that the release tabs are in their slots. Plastic Perforated Edge Display Sheet Metal Figure 30 Closing the shield 5000 Series Oscilloscopes Service Guide...

  • Page 99: To Remove The Lcd, Gasket, And Protective Lens From The Display Mount

    95 2 Use a long-nose pliers or flat-blade screwdriver to push and release the two LCD latches on the left side of the display mount. Display Mount LCD Latches Figure 31 Release display mount latches 5000 Series Oscilloscopes Service Guide...

  • Page 100: Figure 32 Removing The Lcd, Gasket, And Protective Lens

    4 Remove the gasket and protective lens if necessary. Note the orientation of the gasket. LCD Latches Display Mount Protective Lens Gasket LCD Guides RFI spring used on early production models Figure 32 Removing the LCD, gasket, and protective lens 5000 Series Oscilloscopes Service Guide...

  • Page 101: Figure 33 Latch Over Face Of Sheet Metal Housing

    Sheet metal face Latch Figure 33 Latch over face of sheet metal housing e Reinstall the backlight inverter (see step 9 page 97). 5000 Series Oscilloscopes Service Guide...

  • Page 102: To Remove The Power Shaft

    Figure 34 Removing the power shaft latch 3 Lift and remove it from the deck. 4 When reinserting the power shaft, push the shaft into the power switch until the shaft snaps onto the switch. 5000 Series Oscilloscopes Service Guide...

  • Page 103: To Remove The Ac Input Board

    Slot (4) T10 Screw (2) Tab (4) Spring Washer (2) System Board Power & Control Cables AC Input Board Post Power cable Keyhole AC Input Cable Fan Cable Figure 35 Removing the AC input board 5000 Series Oscilloscopes Service Guide...
  • Page 104 6 Reverse this procedure to reinstall. Note: the four tabs on the front of the AC input board fit into the four slots on the chassis. Insure board keyhole is positioned over post on the chassis and engaged correctly before securing with screws. 5000 Series Oscilloscopes Service Guide...

  • Page 105: To Remove The Power Supply

    3 Disconnect the power supply and AC cables Power Supply T10 Screws (4) Power Supply Cable AC Cable Figure 36 Removing the power supply 4 Reverse this procedure to install the power supply. 5000 Series Oscilloscopes Service Guide...

  • Page 106: To Remove The Fan

    Thin sheet metal parts may have sharp edges. Handle with care to avoid injury. WA R N I N G 2 Disconnect the fan cable from the AC board. Fan cable AC input board Figure 37 Locating and disconnecting fan cable 5000 Series Oscilloscopes Service Guide...

  • Page 107: Figure 38 Removing The Fan

    When re-installing, note the position of the tab on the fan mount and the direction of the fan cable. • Ensure that the assembly is locked into the keyholes, fan tab is located at top and fan cables egress as shown. 5000 Series Oscilloscopes Service Guide...

  • Page 108: To Remove The System Board

    2 Using a small flat blade screw driver, gently pry and remove the display cable and backlight inverter cable, also disconnect the keyboard ribbon cable. Push all cables back through the hole in the system board. 5000 Series Oscilloscopes Service Guide...

  • Page 109: Figure 39 Preparing To Remove The System Board

    5 Remove the 3 or 4 T6 screws located by the BNCs on the front panel (see Figure 18 page 83). 6 Remove the two hex nuts and washers from the rear BNCs using the 5/8-inch socket driver. 5000 Series Oscilloscopes Service Guide...

  • Page 110: Figure 40 Removing The System Board

    9 Lift the back of the board to clear the main deck and then gently pull the board straight out. 10 To reinstall the system board: a Feed the keyboard, display and backlight inverter cables through the hole in the system board. Insure power 5000 Series Oscilloscopes Service Guide...
  • Page 111 Figure 39 page 109. h Replace the intensity knob by supporting the back of the encoder and pushing the knob fully onto the shaft. 5000 Series Oscilloscopes Service Guide...
  • Page 112 Replacing Assemblies 5000 Series Oscilloscopes Service Guide...

  • Page 113: Replaceable Parts

    Exploded Views Replaceable Parts List This chapter describes how to order replaceable assemblies and parts for the Agilent 5000 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 at the back of this book.

  • Page 114: 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 115: 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 116: 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. Figure 41 Exploded View 1 of 2 5000 Series Oscilloscopes Service Guide...

  • Page 117: Figure 42 Exploded View 2 Of

    Replaceable Parts Figure 42 Exploded View 2 of 2 5000 Series Oscilloscopes Service Guide...

  • Page 118: Replaceable Parts List

    2-ch keyboard assembly, main board and softkey board 54684-66511 4-ch keyboard assembly, main board and softkey board 54574-66502 AC line filter/power switch PC board assembly 54574-64401 Cabinet assembly 0950-4691 Power Supply 2950-0054 Hex Nut - 1/2-28 thread 5000 Series Oscilloscopes Service Guide...
  • Page 119 54574-43901 Extender, power switch 54574-68501 54684-44701 Fan mount 54684-41001 Foot Pad 54684-60202 Front panel MP10 54684-41902 Keypad, softkey, rubber MP11 54532-94301 ID label 2-ch 100 MHz DSO MP11 54534-94301 ID label 4-ch 100 MHz DSO 5000 Series Oscilloscopes Service Guide...
  • Page 120 Knob - 18 mm purple MP16 54801-47411 Knob - 18 mm pink MP17 54684-94314 Label, autoprobe MP18 54572-94302 BNC label, 2-channel models only, rear MP19 54574-40301 Lid, storage compartment MP20 2090-0881 Liquid crystal display MP21 54684-88001 Protective lens 5000 Series Oscilloscopes Service Guide...
  • Page 121 MP35 54574-94304 Label, MSO cover up 54574-61601 Cable, power supply 54684-61602 Inverter supply cable 54684-61603 LVDS display cable Power cord Part number varies by country. Contact your local Agilent sales office for replacement. (not shown) 5000 Series Oscilloscopes Service Guide...
  • Page 122 Agilent Part Number Description 54574-61603 Cable inter-board supply 54574-61604 Cable inter-board data (not shown) 10073C 2 or Passive Probe 10:1, 500 MHz (not shown) N2863A 2 or Passive Probe 10:1, 300 MHz (not shown) *Optional item. 5000 Series Oscilloscopes Service Guide...

  • Page 123: Index

    Agilent, probes compensating, problem solving, LCD removal, display LED, startup sequence, assembly removal, 89, lid, removal, problem solving, record tests, measurement accuracy, voltage, environmental conditions, measurement category, equipment, test, definitions, exchange assemblies, 5000 Series Oscilloscopes Service Guide...
  • Page 124 User Cal, status, user cal, storage lid, removal, system board part number, removal, test equipment, points, power, record, trace display problem solving, transient withstand capability, 5000 Series Oscilloscopes Service Guide...

  • Page 125: To Clean The Instrument

    (3) Make sure that the instrument is completely dry before reconnecting it to a power source. 5000 Series Oscilloscopes Service Guide...

  • Page 126: 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. 5000 Series Oscilloscopes Service Guide...

Table of Contents