Agilent Technologies InfiniiVision 7000B Series Servisní příručka

Agilent Technologies Agilent InfiniiVision 7000 Series Oscilloscopes Service Guide7000 service guide.book Page 1 Thursday, October 16, 2008 12:18 P

10 Service Guide FiguresFigure 24. Removal of inverter board 92Figure 25. Removing cable shield 93Figure 26. Removing keyboard cables 93Figure 27. Rem

100 7000 Series Oscilloscopes Service Guide 5 Replacing Assemblies To remove the power supply shield1 To remove power supply shield, locate and remove

Replacing Assemblies 57000 Series Oscilloscopes Service Guide 101 2 Once screws have been removed, carefully remove the power supply cover by lifting

102 7000 Series Oscilloscopes Service Guide 5 Replacing Assemblies To remove the power supply1 Disconnect all cables from power supply board.2 Locate

Replacing Assemblies 57000 Series Oscilloscopes Service Guide 103 To remove the AC input board1 Disconnect all cables on AC input board.2 Disconnect

104 7000 Series Oscilloscopes Service Guide 5 Replacing Assemblies 6 To remove the switch extender, gently pry open the extender using a flat head scr

105Agilent TechnologiesAgilent InfiniiVision 7000 Series OscilloscopeService Guide 6Replaceable PartsThis chapter describes how to order replaceable a

106 7000 Series Oscilloscopes Service Guide 6 Replaceable Parts Ordering Replaceable PartsListed PartsTo order a part in the parts list, quote the Agi

Replaceable Parts 67000 Series Oscilloscopes Service Guide 107 In order for Agilent Technologies to provide these advantages, please send a check or

108 7000 Series Oscilloscopes Service Guide 6 Replaceable Parts Exploded ViewsThe following exploded views provide a graphical representation of the o

Replaceable Parts 67000 Series Oscilloscopes Service Guide 109 Figure 2 Exploded View 2 of 27000 service guide.book Page 109 Thursday, October 16,

Service Guide 11 TablesTable 1. List of test equipment 23Table 2. Conventions 25Table 3. Materials required to construct the test connectors 26Table 4

110 7000 Series Oscilloscopes Service Guide 6 Replaceable Parts Replaceable Parts ListThe information given for each part consists of the following:•

Replaceable Parts 67000 Series Oscilloscopes Service Guide 111 H1 1400-0611 2 Clamp-FL-CA 1-WD PVCH2 54684-42202 1 Hole plug front panel (2 Channel o

112 7000 Series Oscilloscopes Service Guide 6 Replaceable Parts MP1 54692-94302 1 ID Label 2 Ch MSO 500 MHzMP1 54693-94301 1 ID Label 4 Ch DSO 500 MHz

Replaceable Parts 67000 Series Oscilloscopes Service Guide 113 MP17 01680-88001 1 LensMP20 5042-6805 2 Cap - Strap HandleMP21 54695-68711 1 Strap Han

114 7000 Series Oscilloscopes Service Guide 6 Replaceable Parts *Optional item.W1 54695-61601 1 LVDS Display CableW2 54695-61602 1 Inverter CableW3 54

Service Guide 115 IndexAAC input board removal, 103Agilentcontact information, 19assembliesexchange, 107replacing, 83Bbacklight inverter removal, 99ba

116 Service GuideIndex removeAC input board, 103backlight inverter, 99cabinet, 85display assembly, 93front panel, 88handle, 86keyboard, 90power supply

17000 Series Oscilloscopes Service Guide 117 Safety NoticesThis apparatus has been designed and tested in accordance with IEC Publication 1010, Safet

118 7000 Series Oscilloscopes Service Guide 1 Safety SymbolsInstruction manual symbol: the product is marked with this symbol when it is necessary for

12 Service Guide Tables7000 service guide.book Page 12 Thursday, October 16, 2008 12:18 PM

13Agilent TechnologiesAgilent InfiniiVision 7000 Series OscilloscopeService Guide 1Characteristics and Specifications Power Requirements 14Measurement

14 7000 Series Oscilloscopes Service Guide 1 Characteristics and Specifications Power RequirementsLine voltage, frequency, and power~Line 100-120 Vac

Characteristics and Specifications 17000 Series Oscilloscopes Service Guide 15 Measurement CategoryMeasurement CategoryThe InfiniiVision 7000 Series

16 7000 Series Oscilloscopes Service Guide 1 Characteristics and Specifications Transient Withstand CapabilityCAUTIONMaximum input voltage for analog

Characteristics and Specifications 17000 Series Oscilloscopes Service Guide 17 Environmental ConditionsEnvironment Indoor use only.Ambient temperatur

18 7000 Series Oscilloscopes Service Guide 1 Characteristics and Specifications SpecificationsPlease see the InfiniiVision 7000 Series Oscilloscopes D

Characteristics and Specifications 17000 Series Oscilloscopes Service Guide 19 Contact usAmericasCanada (877) 894-4414Latin America 305 269 7500Unite

7000 Series Oscilloscopes Service Guide Notices© Agilent Technologies, Inc. 2009No part of this manual may be reproduced in any form or by any means (

20 7000 Series Oscilloscopes Service Guide 1 Characteristics and Specifications 7000 service guide.book Page 20 Thursday, October 16, 2008 12:18 PM

21Agilent TechnologiesAgilent InfiniiVision 7000 Series OscilloscopeService Guide 2Testing PerformanceOverview 22List of Test Equipment 23To construct

22 7000 Series Oscilloscopes Service Guide 2 Testing Performance OverviewTo completely test and troubleshoot MSO models, create and use the test conne

Testing Performance 27000 Series Oscilloscopes Service Guide 23 List of Test EquipmentBelow is a list of test equipment and accessories required to p

24 7000 Series Oscilloscopes Service Guide 2 Testing Performance Feedthrough 50Ω BNC (f) to BNC (m) Agilent 0960-0301* Required only for testing digit

Testing Performance 27000 Series Oscilloscopes Service Guide 25 Fluke MET/CAL ProceduresFluke MET/CAL procedures are available for the 7000 Series os

26 7000 Series Oscilloscopes Service Guide 2 Testing Performance To construct the test connector (for use with MSO models only)Agilent 7000 Series Osc

Testing Performance 27000 Series Oscilloscopes Service Guide 27 Figure 1 Constructing the 8-by-2 ConnectorJumper (2)Signal Lead(from scope’s MSO cabl

28 7000 Series Oscilloscopes Service Guide 2 Testing Performance To test digital channels (MSO models only)The acquisition system testing provides con

Testing Performance 27000 Series Oscilloscopes Service Guide 29 To verify digital channel threshold accuracy (MSO models only)This test verifies the

7000 Series Oscilloscopes Service Guide 3 In This Service GuideThis book provides the service information for the Agilent 7000 Series Oscilloscopes.

30 7000 Series Oscilloscopes Service Guide 2 Testing Performance 1 Turn on the test equipment and the oscilloscope. Let them warm up for 30 minutes b

Testing Performance 27000 Series Oscilloscopes Service Guide 31 Figure 2 Setting Up Equipment for Digital Channel Threshold Accuracy Te s t4 Use a BN

32 7000 Series Oscilloscopes Service Guide 2 Testing Performance oscilloscope to set the threshold test settings as shown in Table 5. 8 Do the followi

Testing Performance 27000 Series Oscilloscopes Service Guide 33 Before proceeding to the next step, make sure that you have recorded the oscilloscope

34 7000 Series Oscilloscopes Service Guide 2 Testing Performance 1 Set up the oscilloscope. a Adjust the channel 1 position knob to place the baseline

Testing Performance 27000 Series Oscilloscopes Service Guide 35 c Press the Acquire key. Then press the Averaging softkey and set #Avgs to 64.Wait a

36 7000 Series Oscilloscopes Service Guide 2 Testing Performance Figure 3 Setting up Equipment for Voltage Measurement Accuracy Te s t4 Adjust the out

Testing Performance 27000 Series Oscilloscopes Service Guide 37 7 When you are finished checking all of the voltage values, disconnect the oscillosco

38 7000 Series Oscilloscopes Service Guide 2 Testing Performance To verify bandwidthThis test checks the bandwidth of the oscilloscope. In this test y

Testing Performance 27000 Series Oscilloscopes Service Guide 39 1 Connect the equipment (see Figure 5).a Use the N cable to connect the signal genera

4 7000 Series Oscilloscopes Service Guide Digital Channels Because all of the oscilloscopes in the Agilent 7000 Series have analog channels, the anal

40 7000 Series Oscilloscopes Service Guide 2 Testing Performance Figure 5 Setting Up Equipment for Bandwidth Verification Test2 Set up the power meter

Testing Performance 27000 Series Oscilloscopes Service Guide 41 3 Set up the oscilloscope.a Press the Save/Recall key, then press the Default Setup s

42 7000 Series Oscilloscopes Service Guide 2 Testing Performance • 1 GHz Models: 1 GHz• 500 MHz Models: 500 MHz• 350 MHz Models: 350 MHz• 100 MHz Mode

Testing Performance 27000 Series Oscilloscopes Service Guide 43 15 The result from step 14 should be between +3.0 dB and -3.0 dB. Record the result i

44 7000 Series Oscilloscopes Service Guide 2 Testing Performance To verify time scale accuracyThis test verifies the accuracy of the time scale. In th

Testing Performance 27000 Series Oscilloscopes Service Guide 45 4 Make the measurement.a Set oscilloscope horizontal sweep speed control to 1ms/div.b

46 7000 Series Oscilloscopes Service Guide 2 Testing Performance To verify horizontal delta t accuracyThis test verifies the horizontal ∆t accuracy. I

Testing Performance 27000 Series Oscilloscopes Service Guide 47 4 Press the Quick Meas softkey, set the Source softkey to 1, then press Select and ch

48 7000 Series Oscilloscopes Service Guide 2 Testing Performance Test limits for:• Internal trigger on all models:• < 10 mV/div: greater of 1 div o

Testing Performance 27000 Series Oscilloscopes Service Guide 49 Test Internal Trigger Sensitivity (all models)1 Connect the equipment (see Figure 6).

Service Guide 5 ContentsFigures 9Tables 111 Characteristics and Specifications 13Power Requirements 14Measurement Category 15Measurement Category 15Me

50 7000 Series Oscilloscopes Service Guide 2 Testing Performance 2 Verify the trigger sensitivity at maximum bandwidth. 1 GHz models: 1 GHz500 MHz mod

Testing Performance 27000 Series Oscilloscopes Service Guide 51 Test External Trigger Sensitivity (2-channel models)Verify the external trigger sensi

52 7000 Series Oscilloscopes Service Guide 2 Testing Performance 1 Connect the equipment (see Figure 7).a Use the N cable to connect the signal genera

Testing Performance 27000 Series Oscilloscopes Service Guide 53 2 Set up the oscilloscope.a Press the Save/Recall key, then press the Default Setup s

54 7000 Series Oscilloscopes Service Guide 2 Testing Performance 4 Verify the trigger sensitivity at maximum frequency for trigger range of 8.0 V.a Pr

Testing Performance 27000 Series Oscilloscopes Service Guide 55 1 Connect the equipment (see Figure 8).a Use the N cable to connect the signal genera

56 7000 Series Oscilloscopes Service Guide 2 Testing Performance 2 Set up the oscilloscope.a Press the Save/Recall key, then press the Default Setup s

Testing Performance 27000 Series Oscilloscopes Service Guide 57 Agilent 7000 Series Oscilloscopes Performance Test RecordSerial No. _________________

58 7000 Series Oscilloscopes Service Guide 2 Testing Performance Horizontal ∆t AccuracyGenerator Setting Test Limits ResultsPeriod 100 µs 99.8 µs to 1

59Agilent TechnologiesAgilent InfiniiVision 7000 Series OscilloscopeService Guide 3Calibrating and AdjustingThis chapter explains how to adjust the os

6 Service Guide ContentsWhat to Test 29Verifying Test Results 29To verify voltage measurement accuracy 33To verify bandwidth 38To verify time scale ac

60 7000 Series Oscilloscopes Service Guide 3 Calibrating and Adjusting CAUTIONUSE EXTERNAL FAN TO REDUCE TEMPERATURE!When you must operate the oscillo

Calibrating and Adjusting 37000 Series Oscilloscopes Service Guide 61 User CalibrationPerform user-calibration:• Each year or after 2000 hours of ope

62 7000 Series Oscilloscopes Service Guide 3 Calibrating and Adjusting Use 50Ω RG58AU or equivalent BNC cables when performing User Cal.a For a 2-chan

Calibrating and Adjusting 37000 Series Oscilloscopes Service Guide 63 BNC(f)-to-BNC(f) (barrel connector) to the tee as shown below.Figure 10 User Ca

64 7000 Series Oscilloscopes Service Guide 3 Calibrating and Adjusting User Cal StatusPressing the User Cal Status softkey displays the following summ

65Agilent TechnologiesAgilent InfiniiVision 7000 Series OscilloscopeService Guide 4TroubleshootingThis chapter begins with suggestions for solving gen

66 7000 Series Oscilloscopes Service Guide 4 Troubleshooting Solving General Problems with the OscilloscopeThis section describes how to solve general

Troubleshooting 47000 Series Oscilloscopes Service Guide 67 ✔ The sampling speed of the oscilloscope depends on the time/division setting. It may be

68 7000 Series Oscilloscopes Service Guide 4 Troubleshooting Performing the checks listed here ensures that the signals from the circuit under test wi

Troubleshooting 47000 Series Oscilloscopes Service Guide 69 Troubleshooting the OscilloscopeThe service policy for the Agilent 7000 Series Oscillosco

ContentsService Guide 7 To run the internal self-tests 81To verify default setup 815Replacing Assemblies83Removing the Handle 85To remove the Adjustab

70 7000 Series Oscilloscopes Service Guide 4 Troubleshooting Equipment required for troubleshootingThe equipment listed in this table is required to t

Troubleshooting 47000 Series Oscilloscopes Service Guide 71 3 Connect the power cord to the rear of the oscilloscope, then to a suitable ac voltage s

72 7000 Series Oscilloscopes Service Guide 4 Troubleshooting To verify basic oscilloscope operation1 Press the Save/Recall key on the front panel, the

Troubleshooting 47000 Series Oscilloscopes Service Guide 73 To compensate the analog probesYou should compensate your analog probes to match their ch

74 7000 Series Oscilloscopes Service Guide 4 Troubleshooting Troubleshooting FlowchartThe following flowchart describes how to troubleshoot the oscill

Troubleshooting 47000 Series Oscilloscopes Service Guide 75 System board drawingsRefer to these two drawings to locate test points on the system boar

76 7000 Series Oscilloscopes Service Guide 4 Troubleshooting Figure 13 System Board Test Points - Bottom Side66U3202U33007000 service guide.bo

Troubleshooting 47000 Series Oscilloscopes Service Guide 77 To check the 7000A Series oscilloscope power supply1 Disconnect the power cord from the o

78 7000 Series Oscilloscopes Service Guide 4 Troubleshooting To check the 7000A Series system board1 Remove the handle, tilt legs, and cabinet.2 Check

Troubleshooting 47000 Series Oscilloscopes Service Guide 79 6 If all cables are properly connected and none of the previous tests confirm a failure o

8 Service Guide Contents7000 service guide.book Page 8 Thursday, October 16, 2008 12:18 PM

80 7000 Series Oscilloscopes Service Guide 4 Troubleshooting To check the fanThe fan speed is controlled by a circuit on the system board. 1 If the fa

Troubleshooting 47000 Series Oscilloscopes Service Guide 81 To run the internal self-testsSelf Test performs a series of internal procedures to verif

82 7000 Series Oscilloscopes Service Guide 4 Troubleshooting • Trigger - Edge trigger, Auto sweep mode, 0 V level, channel 1 source, dc coupling, risi

83Agilent TechnologiesAgilent InfiniiVision 7000 Series OscilloscopeService Guide 5Replacing AssembliesThis chapter describes how to remove assemblies

84 7000 Series Oscilloscopes Service Guide 5 Replacing Assemblies See how the Oscilloscope Parts Fit TogetherAn exploded view of the oscilloscope is i

Replacing Assemblies 57000 Series Oscilloscopes Service Guide 85 Removing the HandleThe Strap Handle must be removed prior to removing the cabinet. T

86 7000 Series Oscilloscopes Service Guide 5 Replacing Assemblies To remove the Adjustable LegsAdjustable legs must be removed prior to removing the c

Replacing Assemblies 57000 Series Oscilloscopes Service Guide 87 To remove CabinetRemoving the cabinet allows access to the rear deck, fan assembly,

88 7000 Series Oscilloscopes Service Guide 5 Replacing Assemblies To remove the Rear Deck AssemblyRemoving the rear deck allows access to the front de

Replacing Assemblies 57000 Series Oscilloscopes Service Guide 89 4 Disconnect power harness and fan cable from acquisition board. Note cable location

Service Guide 9 FiguresFigure 1. Constructing the 8-by-2 Connector 27Figure 2. Setting Up Equipment for Digital Channel Threshold Accuracy Test 31Figu

90 7000 Series Oscilloscopes Service Guide 5 Replacing Assemblies To remove Acquisition and Inverter assembliesThe following illustrates how to remove

Replacing Assemblies 57000 Series Oscilloscopes Service Guide 91 3 Using a TORX T10 driver locate and remove 7 mounting screws.Figure 22 TORX T10 mou

92 7000 Series Oscilloscopes Service Guide 5 Replacing Assemblies 4 Carefully unlock the two alignment pins. Carefully lift acquisition board off fron

Replacing Assemblies 57000 Series Oscilloscopes Service Guide 93 To remove the Front Panel assembly1 Remove cable shield from front deck. Carefully s

94 7000 Series Oscilloscopes Service Guide 5 Replacing Assemblies 3 Carefully remove knobs from front panel. They may be gently pried loose with a fla

Replacing Assemblies 57000 Series Oscilloscopes Service Guide 95 5 To remove the Softkey board printed circuit board from the bezel, insure cable has

96 7000 Series Oscilloscopes Service Guide 5 Replacing Assemblies 6 To remove the front panel assembly carefully release front panel clips that secure

Replacing Assemblies 57000 Series Oscilloscopes Service Guide 97 7 To separate the front panel control board from the front panel carefully pull back

98 7000 Series Oscilloscopes Service Guide 5 Replacing Assemblies 9 Using a TORX T10 remove the four screws that secure the display to the front deck.

Replacing Assemblies 57000 Series Oscilloscopes Service Guide 99 To remove the Fan assembly1 Insure that fan power cable has been disconnected from A