Agilent Technologies 22D Spezifikationen

Service GuidePublication Number 54622-97037December 2002For Safety Information, Warranties, and Regulatory information, see the pages at the end of th

1-4General Information• Agilent IntuiLink Data Capture (for 54622A, 22D, or 24A)IntuiLink Data Capture is a standalone program for downloading wavefor

6-10Replacing AssembliesTo remove the system boardTo remove the system board1 Remove the floppy drive.2 Using the T10 TORX driver, remove the six scre

6-11Replacing AssembliesTo remove the system board7Lift the back of the board to clear the main deck and then pull the board straight out.Figure 6-8Re

6-12Replacing AssembliesTo remove the power supplyTo remove the power supply1 Remove the fan.2 Disconnect the ground wire (green wire with the yellow

6-13Replacing AssembliesTo remove the power supply5Use a flat-blade screwdriver to gently unhook the latch that holds the white power-actuator shaft t

6-14Replacing AssembliesTo remove the power supply6Using the T20 TORX driver, remove the screw holding the power supply board to the deck. Figure 6-11

6-15Replacing AssembliesTo remove the keyboard assemblyTo remove the keyboard assembly1 Remove the front panel. 2 Remove all of the knobs by pulling t

6-16Replacing AssembliesTo remove the handleTo remove the handle• Rotate the handle downward until it just passes the last detente position; this is a

7Replaceable Partsservice.book Page 1 Wednesday, December 18, 2002 8:35 AM

7-2Replaceable PartsThis chapter describes how to order replaceable assemblies and parts for the Agilent 54621A/22A/24A Oscilloscope and Agilent 54621

7-3Replaceable PartsTo order a replacement partTo order a replacement part• To order a part in the material list, quote the Agilent Technologies part

1-5General InformationFigure 1-1Package contents for 54620-Series Oscilloscopesss110074C ProbesPower cordAccessories pouch and front-panel cover**5462

7-4Replaceable PartsTo order a replacement partFigure 7-1Exploded View of the 54621A/22A/24A/21D/22D Oscilloscopeservice.book Page 4 Wednesday, Dece

7-5Replaceable PartsTo order a replacement partTable 7-1Replaceable Parts Reference DesignatorAgilent Part NumberQty DescriptionA1 54621-69001 1 Refur

7-6Replaceable PartsTo order a replacement partMP1 54801-47401 See Descr Knob - 12mm Flint Gray (54621A/22A – 6 ea)(54621D/22D/24A – 8 ea)MP2 54801-

7-7Replaceable PartsTo order a replacement partMP25 54622-63403 See Descr Attenuator lid(54621A/21D/22A/22D - 1 each)(54624A - 2 each)W1 54630-61601 1

7-8service.book Page 8 Wednesday, December 18, 2002 8:35 AM

DECLARATION OF CONFORMITYAccording to ISO/IEC Guide 22 and CEN/CENELEC EN 45014Manufacturer’s Name:Manufacturer’s Address:Agilent Technologies, Inc.Ga

Product RegulationsEMCIEC 61326-1:1997+A1:1998 / EN 61326-1:1997+A1:1998CISPR 11:1990 / EN 55011:1991IEC 61000-4-2:1995+A1:1998 / EN 61000-4-2:1995IEC

Agilent Technologies Inc.P.O. Box 21971900 Garden of the Gods RoadColorado Springs, CO 80901-2197, U.S.A.Safety NoticesThis apparatus has been designe

Notices© Agilent Technologies, Inc. 2000-2002No part of this manual may be reproduced in any form or by any means (including electronic storage and re

1-6General InformationTo inspect options and accessories❏ Verify that you received the options and accessories you ordered and that none were damaged.

1-7General InformationTable 1-2Accessories availableModel Description01650-61607 16:16 logic cable and terminator (for use with 54621D/22D)54620-68701

1-8General InformationTable 1-3. Power Cords Plug Type Cable Part Number Plug Type Cable Part NumberOpt 900 (U.K.) 8120-1703 Opt 918 (Japan) 8120-475

1-9General InformationAcquisition: Analog ChannelsPerformance Characteristics* Denotes Warranted Specifications, all others are typical. Specificatio

1-10General InformationVertical System: Analog ChannelsVertical System: Analog ChannelsAnalog channels 54621A/21D, 54622A/22D: Ch1 and 2 simultaneous

1-11General InformationVertical System: Analog Channels (continued)Vertical System: Analog Channels (continued)ESD Tolerance ±2 kVNoise Peak-to-Peak 2

1-12General InformationHorizontalHorizontalRange 5 ns/div to 50 s/divResolution 25 psVernier 1-2-5 increments when off, 25 minor increments between ma

1-13General InformationTrigger SystemTrigger SystemSources: 54621A/22A: Ch 1, 2, line, ext54621D/22D: Ch 1, 2, line, ext, D15 - D054624A: Ch 1, 2, 3,

iiThe Oscilloscope At a GlanceChoose from a variety of oscilloscopes for capturing long, non-repeating signalswith 200 MSa/s sample rate and 2 MBytes

1-14General InformationAnalog Channel TriggeringAnalog Channel Triggering Range (Internal) ±6 div from center screenSensitivity* Greater of 0.35 div o

1-15General InformationDisplay SystemDisplay SystemDisplay 7-inch raster monochrome CRTThroughput of Analog Channels 25 million gray scale vectors/sec

1-16General InformationFFTFFTPoints Fixed at 2048 pointsSource of FFT Analog channels 1 or 2 (or 3 or 4 for 54624A), 1+2, 1-2, 1*2Window Rectangular,

1-17General InformationGeneral CharacteristicsGeneral CharacteristicsPhysical:SizeWeight32.26 cm wide x 17.27 cm high x 31.75 cm deep (without handle)

1-18service.book Page 18 Wednesday, December 18, 2002 8:35 AM

2Preparing the Oscilloscope for Useservice.book Page 1 Wednesday, December 18, 2002 8:35 AM

2-2Preparing the Oscilloscope for UseTo prepare your oscilloscope for use, you need to do the following tasks. After y ou have completed them, you wil

2-3Setting up the OscilloscopeAfter you have done a few basic tasks, you will connect probes to the oscilloscope. The number of probes, and the type o

2-4Preparing the Oscilloscope for UseTo adjust the handleTo adjust the handle1 Grasp the handle pivot points on each side of the instrument and pull t

2-5Preparing the Oscilloscope for UseTo power-on the oscilloscopeTo power-on the oscilloscope1 Connect the power cord to the rear of the oscilloscope,

iiiIn This BookThis book provides the service information for the Agilent 54621A/22A/24A Oscilloscope and the Agilent 54621D/22D Mixed-Signal Oscillos

2-6Preparing the Oscilloscope for UseTo adjust the display intensityTo adjust the display intensityThe Intensity control is at the lower left corner o

2-7Preparing the Oscilloscope for UseTo connect the oscilloscope probesTo connect the oscilloscope probes1 Connect the Agilent 10074C 1.5-meter, 10:1

2-8Preparing the Oscilloscope for UseTo use the digital probes (mixed-signal oscilloscope only)To use the digital probes (mixed-signal oscilloscope on

2-9Preparing the Oscilloscope for UseTo use the digital probes (mixed-signal oscilloscope only)3 Connect a grabber to one of the probe leads. Be sure

2-10Preparing the Oscilloscope for UseTo use the digital probes (mixed-signal oscilloscope only)5 For high-speed signals, connect a ground lead to the

2-11Preparing the Oscilloscope for UseTo use the digital probes (mixed-signal oscilloscope only)7 Repeat steps 3 through 6 until you have connected al

2-12Preparing the Oscilloscope for UseTo connect a printerTo connect a printerThe oscilloscope connects to a parallel printer through the Parallel out

2-13Preparing the Oscilloscope for UseTo verify basic oscilloscope operationTo verify basic oscilloscope operation1 Connect an oscilloscope probe to c

2-14Getting started using the oscilloscope interfaceWhen the oscilloscope is first turned on, it performs a self-test, then momentarily shows a startu

2-15Preparing the Oscilloscope for UseTo verify basic oscilloscope operation•Press the Getting Started softkey to view the symbols used in the oscillo

ivservice.book Page iv Wednesday, December 18, 2002 8:35 AM

2-16Using Quick HelpThe oscilloscope has a Quick Help system that provides user help for each front-panel key and softkey on the oscilloscope. To view

2-17Preparing the Oscilloscope for UseSelecting a language for Quick Help after you have been operating the oscilloscopeSelecting a language for Quick

2-18Preparing the Oscilloscope for UseLoading a language from floppy diskLoading a language from floppy diskLanguage files can be downloaded from www.

2-19Cleaning the oscilloscope1 Disconnect power from the instrument.CAUTION Avoid Damage to Sensitive Electronic Components!Do not use too much liqu

2-20service.book Page 20 Wednesday, December 18, 2002 8:35 AM

3Testing Performanceservice.book Page 1 Wednesday, December 18, 2002 8:35 AM

3-2Testing PerformanceThis chapter explains how to verify correct oscilloscope operation and perform tests to ensure that the oscilloscope meets the p

3-3Testing PerformanceList of Test EquipmentList of Test EquipmentBelow is a list of test and equipment and accessories required to perform the perfor

3-4Testing PerformanceTo construct the test connectorTo construct the test connectorThe Agilent 54621D/22D Mixed-Signal Oscilloscope has digital chann

3-5Testing PerformanceTo test the 54621D/22D Oscilloscope digital channelsTo test the 54621D/22D Oscilloscope digital channelsThe acquisition system t

ContentsContents-11 General InformationTo inspect package contents 1-3To inspect options and accessories 1-6Performance Characteristics 1-92 Preparing

3-6Testing PerformanceTo verify digital channel threshold accuracyTo verify digital channel threshold accuracyThis test verifies the digital channel t

3-7Testing PerformanceTo verify digital channel threshold accuracy1Turn on the test equipment and the oscilloscope. Let them warm up for 30 minutes be

3-8Testing PerformanceTo verify digital channel threshold accuracyb Method 2 — Using the Test FixtureUse the Agilent 01660-63801 Performance Verificat

3-9Testing PerformanceTo verify digital channel threshold accuracy7Press the oscilloscope User softkey, then turn the Entry knob () on the front panel

3-10Testing PerformanceTo verify voltage measurement accuracyTo verify voltage measurement accuracyThis test verifies the voltage measurement accuracy

3-11Testing PerformanceTo verify voltage measurement accuracyb Set the Volts/Div setting to the value in the first line in Table 3-5. Table 3-5Setting

3-12Testing PerformanceTo verify voltage measurement accuracy3Use the BNC tee and cables to connect the oscilloscope calibrator /power supply to both

3-13Testing PerformanceTo verify bandwidthTo verify bandwidthThis test verifies bandwidth. In this test you will use an oscilloscope calibrator with a

3-14Testing PerformanceTo verify bandwidth1Connect the oscilloscope calibrator output through a 50Ω feedthrough to the oscilloscope channel 1 input.2

3-15Testing PerformanceTo verify horizontal Dt and 1/Dt accuracyTo verify horizontal ∆t and 1/∆t accuracyThis test verifies the horizontal ∆t and 1/∆t

ContentsContents-24 Calibrating and AdjustingTo adjust the power supply 4-4To perform User Cal 4-7To adjust the oscilloscope display 4-85 Troubleshoot

3-16Testing PerformanceTo verify horizontal Dt and 1/Dt accuracy4Change the calibrator to 1-µs markers. Change the time base to 200 ns/div. Adjust the

3-17Testing PerformanceTo verify trigger sensitivityTo verify trigger sensitivityThis test verifies the trigger sensitivity. In this test, you will ap

3-18Testing PerformanceTo verify trigger sensitivityTest Internal Trigger Sensitivity1Press the Save/Recall key, then press the Default Setup softkey.

3-19Testing PerformanceTo verify trigger sensitivityTest External Trigger SensitivityVerify the external trigger sensitivity at these settings:100 MHz

3-20Agilent 54622A/22D/24A Performance Test RecordAgilent 54622A/54622D/54624ASerial No. ______________________________________ Test by ______________

3-21Agilent 54621A/21D Performance Test RecordAgilent 54621A/54621DSerial No. ______________________________________ Test by _________________________

3-22service.book Page 22 Wednesday, December 18, 2002 8:35 AM

4Calibrating and Adjustingservice.book Page 1 Wednesday, December 18, 2002 8:35 AM

4-2Calibrating and AdjustingThis chapter explains how to adjust the oscilloscope for optimum operating performance. You should perform the hardware ad

4-3Calibrating and AdjustingWARNING HAZARDOUS VOLTAGES !Read the safety summary at the back of this book before proceeding.Maintenance is performed w

1General Information service.book Page 1 Wednesday, December 18, 2002 8:35 AM

4-4Calibrating and AdjustingTo adjust the power supplyTo adjust the power supplyThe oscilloscope power supply has both a +3.3 V adjustment, and a +5.1

4-5Calibrating and AdjustingTo adjust the power supply2Locate the power supply voltages at E204, E205, E207, and E208 on the system board. The power s

4-6Calibrating and AdjustingTo adjust the power supply4If the +5.1 V measurement is out of tolerance, adjust the +5.1 V / -5.2 V balance adjustment on

4-7Calibrating and AdjustingTo perform User CalTo perform User CalPerform self-calibration:• every 6 months or after 1000 hours of operation.• if the

4-8Calibrating and AdjustingTo adjust the oscilloscope displayTo adjust the oscilloscope displayIn this procedure, you will make adjustments using two

4-9Calibrating and AdjustingTo adjust the oscilloscope display5Adjust H.HOLD (horizontal hold) to center the display horizontally.6 Adjust FOCUS to ac

4-10service.book Page 10 Wednesday, December 18, 2002 8:35 AM

5Troubleshootingservice.book Page 1 Wednesday, December 18, 2002 8:35 AM

5-2TroubleshootingThis chapter begins with suggestions for solving general problems that you may encounter with the oscilloscope. It tells you what to

5-3Solving General Problems with the OscilloscopesThis section describes how to solve general problems that you may encounter while using the 54621A/2

1-2General InformationThis chapter lists general information for the Agilent 54620-series Oscilloscopes. It also includes performance characteristics

5-4TroubleshootingIf the trace display is unusual or unexpectedIf the trace display is unusual or unexpected❏ Check that the Horizontal time/division

5-5TroubleshootingIf you cannot see a channelIf you cannot see a channel❏ Check that the oscilloscope probe cable is securely connected to the input c

5-6Troubleshooting the OscilloscopeThe service policy for the 54621A/22A/24A Oscilloscopes and the 54621D/22D Mixed-Signal Oscilloscopes is instrument

5-7TroubleshootingTo construct your own dummy loadTo construct your own dummy load1 Obtain a connector that is compatible with the connector J3 on the

5-8TroubleshootingTo check out the oscilloscopeTo check out the oscilloscope1 Is an interface module connected to the rear panel of the oscilloscope?

5-9TroubleshootingTo check out the oscilloscope5Disconnect the display ribbon cable from the system board. Then check the signals on the system board

5-10TroubleshootingTo check out the oscilloscope8Is the fan running? The low voltage power supply has a thermal cut-out circuit. If the fan is defecti

5-11TroubleshootingTo check the Low Voltage Power SupplyTo check the Low Voltage Power Supply 1 Disconnect the power cord from the oscilloscope. Then

5-12TroubleshootingTo check the Low Voltage Power SupplyTable 5-4 Low Voltage Power Supply Tolerances 4If the +5.1 V measurement is out of tolerance,

5-13TroubleshootingTo run the internal self-testsTo run the internal self-testsSelf Test performs a series of internal procedures to verify that the o

1-3General InformationTo inspect package contents❏ Inspect the shipping container for damage.If your shipping container appears to be damaged, keep th

5-14service.book Page 14 Wednesday, December 18, 2002 8:35 AM

6Replacing Assembliesservice.book Page 1 Wednesday, December 18, 2002 8:35 AM

6-2Replacing AssembliesThis chapter describes how to remove assemblies from the oscilloscope. After you have removed an assembly, to install the repla

6-3Replacing AssembliesWARNING HAZARDOUS VOLTAGES !Read the safety summary at the back of this book before proceeding.Maintenance is performed with p

6-4Replacing AssembliesTo remove the cabinetTo remove the cabinet1 Turn off the oscilloscope and disconnect the power cable. 2 Rotate the handle up as

6-5Replacing AssembliesTo remove the fanTo remove the fan1 Disconnect the fan cable from the power supply board. 2 Using the T20 TORX driver, remove t

6-6Replacing AssembliesTo remove the floppy driveTo remove the floppy drive1 Using the T8 TORX driver, loosen the two screws that hold the drive to th

6-7Replacing AssembliesTo remove the front panelTo remove the front panel1 Remove the intensity knob and shaft by grasping the knob with one hand and

6-8Replacing AssembliesTo remove the displayTo remove the display1 Remove the front panel from the oscilloscope.2 Disconnect the ribbon cable from the

6-9Replacing AssembliesTo remove the display4Use a flat-blade screwdriver to gently unhook the latch that holds the white power-actuator shaft to the