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12

1000 X-Series Oscilloscopes Service Guide

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Содержание DSOX1102A

Страница 1: ...Keysight InfiniiVision 1000 X Series Oscilloscopes Service Guide ...

Страница 2: ...omers under its standard commercial license which is embodied in its End User License Agreement EULA a copy of which can be found at www keysight com find sweula The license set forth in the EULA represents the exclusive authority by which the U S government may use modify distribute or disclose the Software The EULA and the license set forth therein does not require or permit among other things t...

Страница 3: ...ng This chapter explains how to adjust the oscilloscope for optimum operating performance 4 Troubleshooting This chapter begins with suggestions for solving general problems that you may encounter with the oscilloscope Procedures for troubleshooting the oscilloscope follow the problem solving suggestions 5 Replacing Assemblies The service policy for 1000 X Series oscilloscopes is unit replacement ...

Страница 4: ...tions for pressing a series of keys are written in an abbreviated manner Instructions for pressing Key1 then pressing Softkey2 then pressing Softkey3 are abbreviated as follows Press Key1 Softkey2 Softkey3 The keys may be front panel keys or softkeys which are located directly below the oscilloscope display ...

Страница 5: ...ent Category 14 Measurement Category Definitions 14 Transient Withstand Capability 14 Environmental Conditions 15 Specifications 16 Contact Us 16 2 Testing Performance Overview 18 List of Test Equipment 19 Conventions 20 To verify DC vertical gain accuracy 21 To verify bandwidth 3 dB 26 To verify time base accuracy 30 To verify trigger sensitivity 32 Test Internal Trigger Sensitivity 33 ...

Страница 6: ...scope 44 If there is no display 44 If there is no trace display 44 If the trace display is unusual or unexpected 44 If you cannot see a channel 45 Verifying Basic Operation 46 To power on the oscilloscope 46 To perform hardware self test 46 To perform front panel self test 47 To verify default setup 47 To perform an Auto Scale on the Probe Comp signal 49 To compensate passive probes 50 5 Replacing...

Страница 7: ...1000 X Series Oscilloscopes Service Guide 7 Contents Index ...

Страница 8: ...8 1000 X Series Oscilloscopes Service Guide Contents ...

Страница 9: ...gure 2 Using a Blocking Capacitor to Reduce Noise 25 Figure 3 Setting Up Equipment for Bandwidth 3 dB Verification Test 27 Figure 4 Setting Up Equipment for Internal Trigger Sensitivity Test 34 Figure 5 Setting Up Equipment for External Trigger Sensitivity Test 37 Figure 6 Default setup screen 48 Figure 7 Example pulses 50 ...

Страница 10: ...10 1000 X Series Oscilloscopes Service Guide Figures ...

Страница 11: ...cal Gain Accuracy 21 Table 5 Settings Used to Verify DC Vertical Gain Accuracy 22 Table 6 Bandwidth 3 dB Test Limits 26 Table 7 Equipment Required to Verify Bandwidth 3 dB 26 Table 8 Equipment Required to Verify Time Base Accuracy 30 Table 9 Equipment Required to Verify Trigger Sensitivity 32 Table 10 Internal Trigger Sensitivity Specifications 33 Table 11 External Trigger Sensitivity Specificatio...

Страница 12: ...12 1000 X Series Oscilloscopes Service Guide Tables ...

Страница 13: ...contains a partial list of characteristics and specifications for the Keysight InfiniiVision 1000 X Series oscilloscopes For a full list of Keysight InfiniiVision 1000 X Series oscilloscopes characteristics and specifications see the data sheets The data sheets are available at www keysight com find 1000X Series Power Requirements Line voltage frequency and power Line 100 120 Vac 50 60 400 Hz 100 ...

Страница 14: ...oltage installation Examples are measurements on household appliances portable tools and similar equipment Measurement category III is for measurements performed in the building installation Examples are measurements on distribution boards circuit breakers wiring including cables bus bars junction boxes switches socket outlets in the fixed installation and equipment for industrial use and some oth...

Страница 15: ...ug connected equipment Pollution Degree The InfiniiVision 1000 X Series oscilloscopes 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 The pollution has no influence Example A clean room or climate controlled office environment Pollution Degree 2 Normally only dry non...

Страница 16: ...e up to date specifications and characteristics To download a copy of the data sheet please visit www keysight com find 1000X Series Or go to the Keysight home page at www keysight com and search for 1000 X Series oscilloscopes data sheet To order a data sheet by phone please contact your local Keysight office Contact Us To contact Keysight see www keysight com find contactus ...

Страница 17: ...DC vertical gain accuracy 21 To verify bandwidth 3 dB 26 To verify time base accuracy 30 To verify trigger sensitivity 32 Keysight 1000 X Series Oscilloscopes Performance Test Record 39 This chapter explains how to verify correct oscilloscope operation and perform tests to ensure that the oscilloscope meets the performance specifications ...

Страница 18: ...minutes before testing Verifying Test Results During the tests record the readings in the Performance Test Record on page 39 To verify whether a test passes verify that the reading is within the limits in the 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...

Страница 19: ...er Sensor 1 GHz 3 accuracy Keysight E9304A or N8482A BNC banana cable BNC m to dual banana Pomona 2BC BNC 36 or Keysight 11001 66001 BNC cable qty 3 BNC BNC 48 length Keysight 10503A Cable Type N m 609 6 mm 24 in Keysight 11500B Adapter BNC f to banana m Keysight 1251 2277 Adapter BNC Tee m f f Keysight 1250 0781 or Pomona 3285 Adapter Type N m to BNC m Keysight 1250 0082 or Pomona 3288 with Pomon...

Страница 20: ...ntions The following conventions will be used when referring to oscilloscope models throughout this chapter Table 2 Conventions Models Referred to as EDU1002A EDU1002G 50 MHz Models DSOX1102A DSOX1102G 70 MHz Models DSOX1102A DSOX1102G with DSX1B7T12 upgrade 100 MHz Models ...

Страница 21: ...be then turn the Entry knob to select 1 00 1 Table 3 DC Vertical Gain Accuracy Test Limits Test Limits Notes 3 of full scale 10 mV div 4 of full scale 10 mV div Full scale is defined as 8 mV on the 500 uV div range Full scale on all other ranges is defined as 8 divisions times the V div setting Table 4 Equipment Required to Verify DC Vertical Gain Accuracy Equipment Critical Specifications Recomme...

Страница 22: ...V 5 V Div 35 V 33 8 V to 36 2 V 2 V Div 14 V 13 52 V to 14 48 V 1 V Div 7 V 6 76 V to 7 24 V 500 mV Div 3 5 V 3 38 V to 3 62 V 200 mV Div 1 4 V 1 352 V to 1 448 V 100 mV Div 700 mV 676 mV to 724 mV 50 mV Div 350 mV 338 mV to 362 mV 20 mV Div 140 mV 135 2 mV to 144 8 mV 10 mV Div 70 mV 67 6 mV to 72 4 mV 5 mV Div1 35 mV 33 4 mV to 36 6 mV 2 mV Div1 14 mV 13 36 mV to 14 64 mV 1 mV Div1 7 mV 6 68 mV ...

Страница 23: ...Add a measurement for the average voltage a Press the Meas key b Press Source then turn the Entry knob labeled on the front panel to select the channel you are testing c Press Type then turn the Entry knob to select Average Full Screen and press Add Measurement 5 Read the current average voltage value as V1 6 Use the BNC tee and cables to connect the oscilloscope calibrator power supply to both th...

Страница 24: ...he output so that the multimeter reading displays as close as possible the first Volts div calibrator setting value in Table 5 8 Wait until the measurement settles 9 Read the current average voltage value again as V2 10 Calculate the difference V2 V1 Oscilloscope Oscilloscope Calibrator Digital Multimeter BNC Tee BNC f to dual bananna adapter ...

Страница 25: ...inally repeat this procedure for the remaining channels to be tested Use a Blocking Capacitor to Reduce Noise On the more sensitive ranges such as 0 5 mV div 1 mV div 2 mV div and 5 mV div noise may be a factor To eliminate the noise add a BNC Tee blocking capacitor and shorting cap at the oscilloscope channel input to shunt the noise to ground See Figure 2 If a BNC capacitor is not available use ...

Страница 26: ...lloscope input BNC Table 6 Bandwidth 3 dB Test Limits Models Test Limits 100 MHz Models All channels 3 dB dc to 100 MHz 70 MHz Models All channels 3 dB dc to 70 MHz 50 MHz Models All channels 3 dB dc to 50 MHz Table 7 Equipment Required to Verify Bandwidth 3 dB Equipment Critical Specifications Recommended Model Part Signal Generator 100 kHz 100 MHz at 200 mVrms Keysight N5181A Power Meter 1 MHz 1...

Страница 27: ... Figure 3 Setting Up Equipment for Bandwidth 3 dB Verification Test 2 Set up the power meter Set the power meter to display measurements in units of watts Power Splitter Power Sensor Signal Generator Oscilloscope Power Meter N Cable N to BNC Adapter 50 Ohm Feedthrough ...

Страница 28: ... and use the Entry knob to select AC RMS N Cycles within the select menu d Press the Add Measurement softkey 6 Note the oscilloscope AC RMS Cyc 1 reading at the bottom of the screen This is the RMS value with any dc offset removed 7 Set the power meter Cal Factor to the 1 MHz value on the calibration chart on the power sensor 8 Note the reading on the power meter and covert to Vrms using the expre...

Страница 29: ...Dev n max freq 161 6 mV Then after converting the values from the power meter to Vrms 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 39 16 Move the power splitter from the channel 1 to the channel 2 input 17 Turn off the current channel and turn on channel 2 using the channel keys 18 Set the trigger source to channel 2 19 Re...

Страница 30: ...e a Press AutoScale b Set the oscilloscope Channel 1 vertical sensitivity to 200 mv div c Set the oscilloscope horizontal sweep speed control to 5 ns div d Adjust the intensity to get a sharp clear trace e 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 E...

Страница 31: ...to calculate the number of years since manufacture Include any fractional portion of a year i First get the 3rd to 6th digits of the serial number For example for the serial number CN47470001 get 4747 ii If the number is greater than 4000 subtract 4000 to get the Date Code For example 4747 4000 is 0747 iii If the number is smaller than 4000 add 6000 to get the Date Code iv In the Date Code the fir...

Страница 32: ...illoscope still triggers The external trigger sensitivity is also tested in both the 1 6 V and 8 V ranges for the 70 MHz and 100 MHz DSOX models Table 9 Equipment Required to Verify Trigger Sensitivity Equipment Critical Specifications Recommended Model Part Signal Generator 10 MHz and 50 MHz 70 MHz or 100 MHz sine waves Keysight N5181A Power splitter Outputs differ 0 15 dB Keysight 11667A Power M...

Страница 33: ...see Figure 4 a Connect the signal generator output to the oscilloscope channel 1 input b Connect a 50 ohm feedthrough termination between the channel 1 input and the BNC cable Table 10 Internal Trigger Sensitivity Specifications Oscilloscope Models Internal Trigger Sensitivity Specification Bandwidth 10 MHz Maximum Bandwidth 50 MHz greater of 0 6 div or 2 5 mV greater of 0 9 div or 3 8 mV 70 MHz g...

Страница 34: ... MHz 5 Perform these steps to test at the 10 MHz setting a Set the signal generator amplitude to about 20 mVpp b Press the AutoScale key c Set the time base to 10 ns div d Set channel 1 to 10 mV div e Decrease the amplitude from the signal generator until 0 6 vertical divisions of the signal about 6 mVpp is displayed 50 Ohm Feedthrough Signal Generator Oscilloscope N Cable N to BNC Adapter ...

Страница 35: ...tting a Set the signal generator amplitude to about 20 mVpp b Press the AutoScale key c Set the time base to 10 ns div d Set channel 1 to 10 mV div e Decrease the amplitude from the signal generator as described in the following table according to your oscilloscope s maximum bandwidth The trigger is stable when the displayed waveform is stable If the trigger is not stable try adjusting the trigger...

Страница 36: ... the equipment see Figure 5 a Use the N cable to connect the signal generator to the power splitter input b Connect one output of the power splitter to the Ext Trig input through a 50Ω feedthrough termination c Connect the power sensor to the other output of the power splitter Table 11 External Trigger Sensitivity Specifications Oscilloscope Models Range Setting External Trigger Sensitivity Specif...

Страница 37: ...000 X Series Oscilloscopes Service Guide 37 Figure 5 Setting Up Equipment for External Trigger Sensitivity Test Power Splitter Power Sensor Signal Generator Oscilloscope Power Meter N Cable N to BNC Adapter 50 Ohm Feedthrough ...

Страница 38: ...ess the Source softkey to set the trigger source to External 7 Check for stable triggering and adjust the trigger level if necessary Triggering is indicated by the Trig d indicator at the top of the display When it is flashing the oscilloscope is not triggered When it is not flashing the oscilloscope is triggered 8 Record the results as Pass or Fail in the Performance Test Record see page 39 If th...

Страница 39: ...3 38 V to 3 62 V ________ ________ 200 mV Div 1 4 V 1 352 V to 1 448 V ________ ________ 100 mV Div 700 mV 676 mV to 724 mV ________ ________ 50 mV Div 350 mV 338 mV to 362 mV ________ ________ 20 mV Div 140 mV 135 2 mV to 144 8 mV ________ ________ 10 mV Div 70 mV 67 6 mV to 72 4 mV ________ ________ 5 mV Div 35 mV 33 4 mV to 36 6 mV ________ ________ 2 mV Div 14 mV 13 36 mV to 14 64 mV ________ ...

Страница 40: ... models 10 MHz 0 6 div or 2 5 mV ________ ________ Max BW 50 MHz 0 9 div or 3 8 mV ________ ________ External Trigger Sensitivity Generator Setting Test Limits Ext Trig In 100 MHz models 8 V range 10 MHz 250 mV ________ Max BW 100 MHz 500 mV ________ 100 MHz models 1 6 V range 10 MHz 50 mV ________ Max BW 100 MHz 100 mV ________ 70 MHz models 8 V range 10 MHz 250 mV ________ Max BW 70 MHz 500 mV _...

Страница 41: ...ecommendations Every five years or after 10000 hours of operation If the ambient temperature is 10 C from the calibration temperature If you want to maximize the measurement accuracy The amount of use environmental conditions and experience with other instruments help determine if you need shorter adjustment intervals Let the Equipment Warm Up Before Adjusting Before you start the adjustments let ...

Страница 42: ...te your Certificate of Calibration If NIST National Institute of Standards and Technology traceability is required perform the procedures in Chapter 2 in this book using traceable sources To perform User Cal 1 Disconnect all inputs from the front panel and allow the oscilloscope to warm up before performing this procedure 2 Make sure user calibration protection is not on by pressing the Utility Op...

Страница 43: ... see a channel Next this chapter describes procedures for Verifying Basic Operation of the oscilloscope To power on the oscilloscope To perform hardware self test To perform front panel self test To verify default setup To perform an Auto Scale on the Probe Comp signal To compensate passive probes The service policy for all 1000 X Series oscilloscopes is unit replacement so there are no internal a...

Страница 44: ...up by pressing Default Setup This will ensure that the trigger mode is Auto Check that the probe clips are securely connected to points in the circuit under test and that the ground is connected Check that the circuit under test is powered on Press the Auto Scale key Obtain service from Keysight Technologies if necessary If the trace display is unusual or unexpected Check that the Horizontal time ...

Страница 45: ... see a channel Recall the default setup by pressing Default Setup This will ensure that the trigger mode is Auto 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 You may have pressed the Auto Scale key befo...

Страница 46: ...ope At this time you can press any key to remove the message and view the display Or you can wait and the message will automatically disappear It will take a total of about 20 30 seconds for the oscilloscope to go through its basic self test and power up routine 2 Proceed to To perform hardware self test on page 46 To perform hardware self test Pressing Utility Service Hardware Self Test performs ...

Страница 47: ...he on screen instructions Failures in the front panel self test indicate problems with the keyboard keypad or display To verify default setup The oscilloscope is designed to turn on with the setup from the last turn on or previous setup To recall the default setup 1 Press the Default Setup key This returns the oscilloscope to its default settings and places the oscilloscope in a known operating co...

Страница 48: ...channel 1 source dc coupling rising edge slope 60 ns holdoff time Display 20 grid intensity persistence off Other Acquire mode normal Run Stop to Run cursor measurements off Figure 6 Default setup screen 2 If your screen looks substantially different replace the system board ...

Страница 49: ...ad to the ground terminal that is next to the Demo 2 Probe Comp terminal 4 Press AutoScale 5 You should see a waveform on the oscilloscope s display similar to this If you see the waveform but the square wave is not shaped correctly as shown above perform the procedure To compensate passive probes on page 50 If you do not see the waveform ensure your power source is adequate the oscilloscope is pr...

Страница 50: ...obe Check then follow the instructions on screen If necessary use a nonmetallic tool supplied with the probe to adjust the trimmer capacitor on the probe for the flattest pulse possible On the some probes the trimmer capacitor is the yellow adjustment on the probe tip On other probes the trimmer capacitor is located on the probe BNC connector Figure 7 Example pulses 5 Connect probes to all other o...

Страница 51: ...n 1000 X Series Oscilloscope Service Guide 5 Replacing Assemblies The service policy for all 1000 X Series oscilloscopes is unit replacement so there are no instructions for replacing internal assemblies in this service guide ...

Страница 52: ...52 1000 X Series Oscilloscopes Service Guide 5 Replacing Assemblies ...

Страница 53: ...ion 1000 X Series Oscilloscope Service Guide 6 Replaceable Parts Because the service policy for 1000 X Series oscilloscopes is unit replacement no replaceable parts are available for the Keysight 1000 X Series oscilloscopes ...

Страница 54: ...54 1000 X Series Oscilloscopes Service Guide 6 Replaceable Parts ...

Страница 55: ... Safety Requirements for Measuring Apparatus and has been supplied in a safe condition This is a Safety Class I instrument provided with terminal for protective earthing Before applying power verify that the correct safety precautions are taken see the following warnings In addition note the external markings on the instrument that are described under Safety Symbols ...

Страница 56: ...r voltage reduction or mains isolation the common terminal must be connected to the earth terminal of the power source Whenever it is likely that the ground protection is impaired you must make the instrument inoperative and secure it against any unintended operation Service instructions are for trained service personnel To avoid dangerous electric shock do not perform any service unless qualified...

Страница 57: ...ent If the instrument requires cleaning 1 Remove power from the instrument 2 Clean the external surfaces of the instrument with a soft cloth dampened with a mixture of mild detergent and water 3 Make sure that the instrument is completely dry before reconnecting it to a power source ...

Страница 58: ...uction 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 ...

Страница 59: ...ry 14 definitions 14 N NIST 42 O overvoltage category 15 P perform user cal 42 performance test record 39 pollution degree 15 pollution degree definitions 15 power requirements 13 probes compensating 50 problem solving 43 R record tests 39 replacing assemblies 51 run self tests 46 S self test front panel 47 self test hardware 46 self alignment user cal 42 self tests 46 specifications 16 startup se...

Страница 60: ...60 1000 X Series Oscilloscopes Service Guide Index ...

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