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Fluke 5820A, Service Manual

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Calibration and Verification

Verification

3

3-31

Set the Calibrator Mainframe to the Edge menu. Press 

 on the Calibrator

Mainframe to activate the output. Then follow these steps to verify Edge frequency.

1.

 

Set the PM 6680’s FUNCTION to measure frequency on channel A with auto
trigger, measurement time set to 1 second or longer, 50 

Ω

 impedance, and filter off.

2.

 

Using the N to BNC cable, connect the CHAN 1 connector on the Calibrator
Mainframe to PM 6680 channel A.

3.

 

Program the Calibrator Mainframe to output 2.5 V at each frequency listed in Table
3-15.

4.

 

Allow the PM 6680 reading to stabilize, then record the PM 6680 reading for each
frequency listed in Table 3-15. Compare to the tolerance column of Table 3-15.

Table 3-15. Edge Frequency Verification

Calibrator Mainframe

Frequency

(Output @ 2.5 V p-p)

PM 6680 Reading

 (Frequency)

Tolerance

1 kHz

.001 Hz

10 kHz

0.01 Hz

100 kHz

0.1 Hz

1 MHz

1 Hz

10 MHz

10 Hz

3-38.  Edge Duty Cycle Verification

This procedure uses the following equipment:

•

 

PM 6680 Frequency Counter

•

 

N to BNC cable supplied with the Scope Calibrator

Set the Calibrator Mainframe to the Edge menu. Press 

 on the Calibrator

Mainframe to activate the output. Then follow these steps to verify Edge duty cycle.

1.

 

Set the PM 6680’s FUNCTION to measure duty cycle on channel A with auto
trigger, measurement time set to 1 second or longer, 50 

Ω

 impedance, and filter off.

2.

 

Using the N to BNC cable, connect the CHAN 1 connector on the Calibrator
Mainframe to PM 6680 channel A.

3.

 

Program the Calibrator Mainframe to output 2.5 V at 1 MHz.

4.

 

Allow the PM 6680 reading to stabilize. Compare the duty cycle reading to 50% 

±

5%.

3-39.  Edge Rise Time Verification

This procedure tests the edge function’s rise time. Aberrations are also checked with the
Tektronix 11801 oscilloscope and SD-22/26 sampling head.

The following equipment is used to verify the edge rise time:

•

 

High Frequency Digital Storage Oscilloscope: Tektronix 11801 with Tektronix SD-
22/26 sampling head

•

 

3 dB attenuator, 3.5 mm (m/f)

Summary of Contents for 5820A

Page 1: ...5820A Oscilloscope Calibrator Service Manual PN 673142 June 1999 Rev 1 4 03 1999 2003 Fluke Corporation All rights reserved Printed in U S A All product names are trademarks of their respective companies ...

Page 2: ...e warranty period To obtain warranty service contact your nearest Fluke authorized service center or send the product with a description of the difficulty postage and insurance prepaid FOB Destination to the nearest Fluke authorized service center Fluke assumes no risk for damage in transit Following warranty repair the product will be returned to Buyer transportation prepaid FOB Destination If Fl...

Page 3: ...ee the Index for references GROUND Ground terminal to chassis earth Attention Refer to the manual see the Index for references This symbol indicates that information about usage of a feature is contained in the manual AC POWER SOURCE The Calibrator is intended to operate from an ac power source that will not apply more than 264V ac rms between the supply conductors or between either supply conduct...

Page 4: ...DO NOT REMOVE COVER DURING OPERATION To avoid personal injury or death do not remove the Calibrator cover without first removing the power source connected to the rear panel Do not operate the Calibrator without the cover properly installed Normal calibration is accomplished with the cover closed Access procedures and the warnings for such procedures are contained in the Service Manual Service pro...

Page 5: ...pecifications Pulse Function 1 13 1 16 Trigger Signal Specifications Time Marker Function 1 13 1 17 Trigger Signal Specifications Edge Function 1 14 1 18 Trigger Signal Specifications Square Wave Voltage Function 1 14 1 19 Trigger Signal Specifications TV 1 14 1 20 Tunnel Diode Drive Capability 1 14 1 21 Oscilloscope Input Resistance Measurement Specifications 1 14 1 22 Oscilloscope Input Capacita...

Page 6: ...Calibration 3 11 3 12 DC Current Calibration 3 11 3 13 AC Current Calibration 3 11 3 14 Wave Generator Calibration 3 12 3 15 Edge Amplitude Calibration 3 12 3 16 Leveled Sine Wave Amplitude Calibration 3 13 3 17 Leveled Sine Wave Flatness Calibration 3 14 3 18 Low Frequency Calibration 3 14 3 19 High Frequency Calibration 3 15 3 20 Pulse Width Calibration 3 15 3 21 MeasZ Calibration 3 16 3 22 Leve...

Page 7: ...pment Required 3 59 3 63 Adjusting the Leveled Sine Wave Function 3 59 3 64 Equipment Setup 3 59 3 65 Adjusting the Leveled Sine Wave VCO Balance 3 60 3 66 Adjusting the Leveled Sine Wave Harmonics 3 60 3 67 Adjusting the Aberrations for the Edge Function 3 61 3 68 Equipment Setup 3 61 3 69 Adjusting the Edge Aberrations 3 62 4 Maintenance 4 1 4 1 Introduction 4 3 4 2 Replacing the Line Fuse 4 3 4...

Page 8: ... Channel 2 DMM Input 5 25 5 19 Channel 3 DMM Input 5 27 5 20 Channel 4 DMM Input 5 28 5 21 Channel 5 DMM Input 5 29 5 22 Capacitance 5 30 6 Replaceable Parts 6 1 6 1 Introduction 6 3 6 2 How to Obtain Parts 6 3 6 3 List of Replacement Parts 6 3 Index ...

Page 9: ...cations 1 14 1 16 Oscilloscope Input Capacitance Measurement Specifications 1 14 1 17 Overload Measurement Specifications 1 15 1 18 Auxiliary Input Performance 1 15 1 19 Current Output Specifications 1 15 3 1 Scope Calibrator Calibration and Verification Equipment 3 3 3 2 Voltage HP3458A Settings 3 7 3 3 Edge and Wave Generator HP3458A Settings 3 8 3 4 Verification Methods for Scope Calibrator Fun...

Page 10: ...Verification Flatness Channels 1 2 and 5 5 14 5 8 Leveled Sine Flatness 5 5 V Channel 2 5 21 5 9 Leveled Sine Flatness 5 5 V Channel 3 5 22 5 10 Leveled Sine Flatness 5 5 V Channel 4 5 22 5 11 Leveled Sine Flatness 5 5 V Channel 5 5 23 5 12 Pulse Width 5 23 5 13 Edge Rise Time Channel 2 5 24 5 14 Edge Rise Time Channel 3 5 24 5 15 Edge Rise Time Channel 4 5 24 5 16 Edge Rise Time Channel 5 5 24 5 ...

Page 11: ...requency Verification 3 26 3 6 Setup for Edge Rise Time Verification 3 32 3 7 Setup for Leveled Sine Wave Harmonics Verification 3 47 3 8 Setup for Wave Generator Function 3 50 3 9 Setup for Overload Function Verification 3 58 3 10 Adjusting the Leveled Sine Wave Balance 3 60 3 11 Adjusting the Leveled Sine Wave Harmonics 3 61 3 12 Adjusting Short Term Edge 3 63 4 1 Accessing the Fuse 4 4 4 2 Acce...

Page 12: ...5820A Service Manual viii ...

Page 13: ... ns Pulse Generator Specifications 1 13 1 15 Trigger Signal Specifications Pulse Function 1 13 1 16 Trigger Signal Specifications Time Marker Function 1 13 1 17 Trigger Signal Specifications Edge Function 1 14 1 18 Trigger Signal Specifications Square Wave Voltage Function 1 14 1 19 Trigger Signal Specifications TV 1 14 1 20 Tunnel Diode Drive Capability 1 14 1 21 Oscilloscope Input Resistance Mea...

Page 14: ...5820A Service Manual 1 2 ...

Page 15: ...ut value to pre determined cardinal values for various functions Programmable entry limits that prevent invalid amounts from being entered Edge Leveled Sine Pulse Marker and Wave Generation modes Accurate oscilloscopic input impedance measurement Tunnel Diode Pulse compatibility DC Volt Measure Mode Current Mode generates both DC and low frequency ac current 1 ns to 500 ns pulse width capability w...

Page 16: ...e world 1 425 446 5500 For additional information about Fluke its products and services visit Fluke s web site at www fluke com 1 3 Instruction Manuals The 5820A Manual Set provides complete information for operators and service or maintenance technicians The set includes 5820A Operators Manual PN 802154 5820A Service Manual PN 673142 The 5820A Operators Manual ships with the instrument The 5820A ...

Page 17: ...pecifications All specifications are valid after allowing a warm up period of 30 minutes or twice the time the 5820A has been turned off For example if the 5820A has been turned off for 5 minutes the warm up period is 10 minutes All specifications apply for the temperature and time period indicated For temperatures outside of tcal 5 C tcal is the ambient temperature when the 5820A was calibrated t...

Page 18: ...e 1 2 5820A Calibrator Dimensional Outline 1 7 General Specifications Table 1 1 General Specifications Warmup Time Twice the time since last warmed up to a maximum of 30 minutes Settling Time 5 seconds or faster for all functions and ranges Standard Interfaces IEEE 488 GPIB RS 232 Temperature Performance Operating 0 C to 50 C Calibration tcal 15 C to 35 C Storage 20 C to 70 C Electromagnetic Compa...

Page 19: ...y with IEC 1010 1 1992 1 ANSI ISA S82 01 1994 CAN CSA C22 2 No 1010 1 92 Interface Impedance The 5820A is designed to drive both 50 Ω and 1MΩ loads Analog Low Isolation 20 V EMC Complies with EN 61326 1 Line Power Line Voltage selectable 100 V 120 V 220 V 240 V Line Frequency 47 to 63 Hz Line Voltage Variation 10 about line voltage setting Power Consumption 250 VA Dimensions Height 17 8 cm 7 inche...

Page 20: ...e 1 2 5 e g 10 mV 20 mV 50 mV Square Wave Frequency Characteristics Range 10 Hz to 10 kHz 1 Year Absolute Uncertainty tcal 5 C 0 33 ppm of setting Typical Aberration from 50 of leading trailing edge 25 mV to 130 V within 4 µs 10 mV to 25 mV within 8 µs 1 mV to 10 mV within 14 µs 0 5 of output 100 µV 1 Positive or negative zero referenced square wave 2 Above 1 kHz 0 25 of output 40 µV Assumes conne...

Page 21: ...lue indicated below Sequence Values 5 mV 10 mV 25 mV 50 mV 60 mV 80 mV 100 mV 200 mV 250 mV 300 mV 500 mV 600 mV 1 V 2 5 V Frequency Range 1 1 kHz to 10 MHz 0 33 ppm of setting Typical Jitter edge to trigger 3 ps p p Leading Edge Aberrations 2 within 2 ns from 50 of rising edge 3 of output 2 mV 2 to 5 ns 2 of output 2 mV 5 to 30 ns 1 of output 2 mV after 30 ns 0 5 of output 2 mV Typical Duty Cycle...

Page 22: ... digits 100 mV 4 digits Adjustment Range continuously adjustable 1 Year Absolute Uncertainty tcal 5 C 2 of output 300 µV 3 5 of output 300 µV 4 of output 300 µV 5 5 of output 300 µV 6 of output 300 µV Flatness 1 relative to 50 kHz not applicable 1 5 of output 100 µV 2 of output 100 µV 3 5 of output 100 µV 4 of output 100 µV Short Term Amplitude Stability 1 2 Frequency Characteristics Resolution 10...

Page 23: ...tter p p 10 ppm 1 ppm 1 ppm 1 ppm 1 ppm Sequence 5 2 1 from 5 s to 2 ns e g 500 ms 200 ms 100 ms Adjustment Range At least 10 around each sequence value indicated above Amplitude Resolution 4 digits 1 Year Absolute Uncertainty tcal 5 C 3 2 5 ppm 5 µHz 2 0 33 ppm 0 33 ppm 0 33 ppm 0 33 ppm 1 Typical rise time of square wave and 20 pulse 20 duty cycle pulse is 1 5 ns 2 With 10 MHz external reference...

Page 24: ...C Offset Range 0 to 40 of p p amplitude 1 0 to 40 of p p amplitude 1 Ramp Linearity 2 better than 0 1 10 Hz to 10 kHz 3 Frequency Range 0 01 Hz to 100 kHz 0 01 Hz to 100 kHz Resolution 4 or 5 digits depending upon frequency 4 or 5 digits depending upon frequency 1 Year Absolute Uncertainty tcal 5 C 5 2 5 ppm 5 µHz 4 2 5 ppm 5 µHz 4 1 The DC offset plus the wave signal must not exceed 30 V rms 2 Ap...

Page 25: ...ses below 1ns but pulse width accuracy is not specified 2 Assumes that trigger used in divide by 1 mode Other divide modes are not specified 3 Pulse skew measured from 30 of trigger signal amplitude to 30 of pulse range amplitude 4 Uncertainty specification applies only for pulse periods that are 3 µs or greater in duration Otherwise skew uncertainty is typical 1 15 Trigger Signal Specifications P...

Page 26: ...mats Selectable NTSC SECAM PAL PAL M Polarity Positive or negative Amplitude into 50 Ω p p Adjustable 0 to 1 5 V p p into 50 ohm load 7 accuracy Line Marker Selectable Line Video Marker 1 20 Tunnel Diode Drive Capability Table 1 14 Tunnel Diode Drive Capability TD Pulse Drive Square wave at 100 Hz to 100 kHz with variable amplitude of 60 to 100 V p p 1 21 Oscilloscope Input Resistance Measurement ...

Page 27: ...tability 10 MHz reference clock for the 5820A for all functions except the Wave Generator function For all other modes the frequency stability is determined by the external reference stability The external reference input must be between 1 to 5 V p p 1 25 Auxiliary Input Specifications Maximum input voltage into the auxiliary input is 40 V p p Table 1 18 Auxiliary Input Performance Channel Configu...

Page 28: ...5820A Service Manual 1 16 ...

Page 29: ...e Marker Mode 2 7 2 6 Wave Generator Mode 2 8 2 7 Pulse Generator 2 8 2 8 Input DC Voltage Measurement Mode 2 8 2 9 Input Impedance Mode Resistance 2 8 2 10 Input Impedance Mode Capacitance 2 8 2 11 Current Module 2 9 2 12 Overload Mode 2 9 2 13 Trigger 2 9 2 14 High Frequency Switching 2 9 2 15 5 Channel Option 2 9 2 16 GHz Option Module 2 9 ...

Page 30: ...5820A Service Manual 2 2 ...

Page 31: ...agram of the 5820A Note that while ac power is filtered on the A3 Mother Board most supply voltages are derived on the A80 Voltage Board The components in the scope module are shown in Figure 2 2 A signal diagram is shown in Figure 2 3 The scope module consists of the following The A55 Main Scope Board which generates leveled sine marker capacitance measurement and trigger The A51 Voltage Video Bo...

Page 32: ...Matrix Output Sense Bd A6 Front Panel Processor Board A9 Power Board Wave Gen Function A80 Scope Board A55 Output Trigger Chan 1 2 3 4 NC NC NC 5 Aux in Aux In Relay Control Single Trigger Channel Out Trigger C1 C2 C3 C4 C5 5 Channel Single Channel Power Control Current Board A81 Current Loop Outlet yu068f eps Figure 2 1 Signal Diagram of Chassis ...

Page 33: ...duction 2 2 5 Main Scope Board Voltage Bd Pulse Bd Trigger Out Signal Out Attenuator Bd Control Clock From DDS A6 Ext Ref Clock A51 A55 A52 A90 Power Control 5820 Scope Module yu070f eps Figure 2 2 Block Diagram of Scope Module ...

Page 34: ...er 1 10 100 1000 LF PWB HF PWB A6 DDS External Clock In Time Mark I LF Mux HF Mux HF Mux Oscilloscope Calibrator Trigger BNC SCOPE Output BNC pp Detect Step Attenuator Module Leveled Sine Wave and Time Mark II PLLs Pwr Amp Leveling Loop Edge 10 ns to 2 ns aag031f eps Figure 2 3 Signal Diagram of Scope Module ...

Page 35: ...the A55 2 2 Voltage Mode All ac and dc voltage function signals are generated from the A51 Voltage Video Board a daughter card to the A55 Main Scope Board A dc reference voltage is supplied to A51 from the A6 Direct Digital Synthesis Board this reference is used for all dc and ac amplitudes All frequency signals clock are generated on the A55 The output of the A51 is passed to the A55 board which ...

Page 36: ...l amplitude and frequency for the Wavegen function are generated on A6 and the signals are routed through A55 The signals are then sent to the A90 assembly where range attenuation occurs Wavegen signals are then sent to front panel high frequency switch Output trigger capability is not available with these signals 2 7 Pulse Generator Pulse Gen Pulse Generator Modes signals are derived from A52 Whi...

Page 37: ...nal to the optional GHz module if installed 2 14 High Frequency Switching For the standard single channel calibrator output signals except for current and trigger are routed to a high frequency switch From the switch the signals are cabled to the 5820A 4096 output block For the single channel unit the trigger signal and current signal are cabled directly to the output block and current loop respec...

Page 38: ...5820A Service Manual 2 10 ...

Page 39: ...urrent Calibration 3 11 3 14 Wave Generator Calibration 3 12 3 15 Edge Amplitude Calibration 3 12 3 16 Leveled Sine Wave Amplitude Calibration 3 13 3 17 Leveled Sine Wave Flatness Calibration 3 14 3 18 Low Frequency Calibration 3 14 3 19 High Frequency Calibration 3 15 3 20 Pulse Width Calibration 3 15 3 21 MeasZ Calibration 3 16 3 22 Leveled Sine Wave Flatness Calibration GHz Option 3 18 3 23 582...

Page 40: ...rmonic Verification 3 47 3 49 Time Marker Verification 3 48 3 50 Wave Generator Verification 3 50 3 51 Verification at 1 MΩ 3 50 3 52 Verification at 50 Ω 3 52 3 53 Pulse Width Verification 3 53 3 54 Pulse Skew Calibration and Verification 3 54 3 55 Calibration 3 55 3 56 Verification 3 55 3 57 Pulse Period Verification 3 56 3 58 MeasZ Resistance Verification 3 56 3 59 MeasZ Capacitance Verificatio...

Page 41: ...nty 0 06 Adapter Pomona 1269 BNC f to Double Banana Plug Termination Feedthrough 50 Ω 1 used with Edge Amplitude Calibration and AC Voltage Verification N to BNC Cable supplied with Scope Calibrator Edge Rise Time and Aberrations Verification High Frequency Digital Storage Oscilloscope Tektronix 11801 with Tektronix SD 22 26 sampling head or Tektronix TDS 820 with 8 GHz bandwidth 1 Frequency 8 to ...

Page 42: ...ith 8 GHz option Attenuator 2 3 dB SMA m f SMA T connector m f m 0 5 M SMA cable m m Adapter 2 BNC f to SMA m N to BNC Cable 2 supplied with Scope Calibrator Leveled Sine Wave Frequency Verification Frequency Counter PM 6680 with option PM 9621 PM 9624 or PM 9625 and PM 9690 or PM 9691 50 kHz to 600 MHz 0 1 ppm uncertainty Adapter Pomona 3288 BNC f to Type N m N to BNC Cable supplied with Scope Ca...

Page 43: ...on and Verification Power Meter Hewlett Packard 437B Range 42 to 5 6 dBm Frequency 10 600 MHz Power Sensor Hewlett Packard 8482A Range 20 to 19 dBm Frequency 10 600 MHz Power Sensor Hewlett Packard 8481D Range 42 to 20 dBm Frequency 10 600 MHz 30 dB Reference Hewlett Packard 11708A Range 30 dB Attenuator supplied with HP 8481D Frequency 50 MHz Adapter Hewlett Packard PN 1250 1474 BNC f to Type N f...

Page 44: ...e calibrated certified traceable if traceability is to be maintained and operating within their normal specified operating environment It is also important to ensure that the equipment has had sufficient time to warm up prior to its use Refer to the operating manuals for each piece of equipment for details Before you begin calibration you may wish to review all of the procedures in advance to ensu...

Page 45: ...ency NPLC DELAY topline DELAY baseline 100 Hz 1 007 s 012 s 1 kHz 01 0007 s 0012 s 5 kHz 002 00014 00024 10 kHz 001 00007 00012 For all measurements the HP 3458A is in DCV manual ranging with external trigger enabled A convenient method to make these measurements from the HP 3458A s front panel is to program these settings into several of the user defined keys on its front panel For example to mak...

Page 46: ...Square Wave Measurements The setup to measure the topline and baseline of Edge and Wave Generator signals differs slightly from the Voltage Square Wave method described above The HP 3458A is triggered by a change in input level instead of an external trigger The trigger level is set to 1 of the DCV range with ac coupling of the trigger signal The delay after the trigger event is also changed for t...

Page 47: ...gs you can program one of the keys to MATH OFF MATH STAT and then use the RMATH MEAN function to recall the average or mean value 3 8 DC Voltage Calibration This procedure uses the following equipment Hewlett Packard 3458A Digital Multimeter BNC f to Double Banana adapter N to BNC cable supplied with the Scope Calibrator Note Calibrating dc voltage requires ac voltage calibration Note When dc volt...

Page 48: ...ainframe display indicates that the next steps calibrate ac Voltage Press the STORE CONSTS blue softkey to store the new calibration constants AC Voltage must now be calibrated Continue with the next section 3 9 AC Voltage Calibration This procedure uses the same equipment and setup as dc voltage calibration DC voltages are measured and entered in the Calibrator Mainframe to calibrate the AC Volta...

Page 49: ...tor assemblies Set the Calibrator Mainframe in CURRENT CAL mode Remove the front panel Current Loop using the 2 mm hex head driver and proceed with the following procedures 3 12 DC Current Calibration 1 Set the DMM to measure dc current 2 Connect the DMM directly to the vacant banana jacks 3 Take dc current measurements at 110 µA 1 10 mA and 11 0 mA and enter the values on the Calibrator front pan...

Page 50: ...r N to BNC cable supplied with the Scope Calibrator Within the calibration menu press the NEXT SECTION blue softkey until the display reads WAVEGEN Cal Then follow these steps to calibrate the Wave Generator 1 Connect the Calibrator Mainframe s CHAN 1 connector to the HP 3458A input using the N to BNC cable and the BNC f to Double Banana adapter 2 Set the HP 3458A to DCV NPLC 01 LEVEL 1 TRIG LEVEL...

Page 51: ...and baseline measurements correcting for the load resistance error To make this correction multiply the readings by 0 5 50 Rload Rload where Rload actual feedthrough termination resistance 3 16 Leveled Sine Wave Amplitude Calibration This procedure uses the following equipment HP 437A Power Meter or equivalent HP 8481D Power Sensor HP 8482A Power Sensor N female to BNC female adapter N to BNC cabl...

Page 52: ... REF UTIL MENUS SPEC CLEAR DELETE ENTER 0 1 2 3 4 5 6 7 8 9 yu034f eps Figure 3 3 Connecting the Calibrator Mainframe to the 5790A AC Measurement Standard 3 17 Leveled Sine Wave Flatness Calibration Leveled Sine Wave flatness calibration is divided into two frequency bands 50 kHz to 10 MHz low frequency and 10 MHz to 600 MHz high frequency The equipment setups are different for each band Flatness ...

Page 53: ... the GO ON blue softkey 4 Press the power meter SHIFT key then FREQ key and use the arrow keys to enter the power sensor s Cal Factor for the frequency displayed on the Calibrator Mainframe Ensure that the factor is correct then press the power meter ENTER key 5 Adjust the amplitude using the Calibrator Mainframe front panel knob until the power sensor reading matches the 10 MHz reference within 0...

Page 54: ...efully re enter the reading with the proper multiplier i e m u n p If the warning still occurs enter a value between the displayed pulse width and the previously entered value Keep attempting this moving closer and closer to the displayed pulse width until the value is accepted Complete the pulse width calibration procedure The pulse width calibration procedure must now be repeated until all enter...

Page 55: ...o the 40 Ω resistance Refer to Figure 3 4 for the proper equipment connections 2 Press the GO ON blue softkey 3 Enter the actual 40 Ω resistance 4 When prompted by the Calibrator Mainframe disconnect the 40 Ω resistance and connect the 60 Ω resistance 5 Press the GO ON blue softkey 6 Enter the actual 60 Ω resistance Note The Calibrator Mainframe will warn when the entered value is out of bounds If...

Page 56: ...e STORE CONSTS blue softkey to store the new calibration constants 3 22 Leveled Sine Wave Flatness Calibration GHz Option Leveled Sine Wave Flatness Calibration is only applicable if the 5820A has the GHz Option installed This calibration procedure uses the same equipment as in the 5820A Leveled Sine Wave Flatness High Frequency calibration procedure See the GHz section for details 3 23 5820A 5 Op...

Page 57: ...dicated Table 3 4 Verification Methods for Scope Calibrator Functions Function Verification Method DC Voltage Procedure provided in this manual AC Voltage amplitude Procedure provided in this manual AC Voltage frequency Procedure provided in this manual DC Voltage Measurement Procedure provided in this manual Current Procedure provided in this manual Edge amplitude Procedure provided in this manua...

Page 58: ...isted in Table 3 5 Press on the Calibrator Mainframe to activate the output 3 Allow the HP 3458A reading to stabilize then record the HP 3458A reading for each voltage in Table 3 5 4 Compare result to the tolerance column 3 27 Verification at 50 Ω For the 50 Ω verification connect the CHAN 1 connector to the HP 3458A input using the cable and the 50 Ω termination connected to the N to BNC to Banan...

Page 59: ...3 µV 0 00125 25 3 µV 0 00249 25 6 µV 0 00249 25 6 µV 0 0025 25 6 µV 0 0025 25 6 µV 0 00625 26 5 µV 0 00625 26 5 µV 0 0099 27 5 µV 0 0099 27 5 µV 0 01 27 5 µV 0 01 27 5 µV 0 0175 29 4 µV 0 0175 29 4 µV 0 0249 31 2 µV 0 0249 31 2 µV 0 025 31 2 µV 0 025 31 2 µV 0 0675 41 8 µV 0 0675 41 8 µV 0 1099 52 5 µV 0 1099 52 5 µV 0 11 52 5 µV 0 11 52 5 µV 0 305 101 50 µV 0 305 101 50 µV 0 499 150 µV 0 499 150 ...

Page 60: ... 2 77 mV 70 5 17 65 mV 70 5 17 65 mV 130 32 5 mV 130 32 5 mV 6 599 50 Ω 16 5 mV Table 3 6 DC Voltage Verification at 50 Ω Calibrator Mainframe Output HP 3458A Rdg V dc Reading x Correction Tolerance V dc 0 mV 0 00004 V 2 49 mV 4 623E 05 V 2 49 mV 4 623E 05 V 9 90 mV 6 475E 05 V 9 90 mV 6 475E 05 V 24 9 mV 0 0001023 V 24 9 mV 0 0001023 V 109 9 mV 0 0003148 V 109 9 mV 0 0003148 V 499 mV 0 0012875 V ...

Page 61: ...key under Output toggles the impedance between 50 Ω and 1 MΩ 1 When making measurements at 1 kHz set the HP 3458A to DCV NPLC 01 TRIG EXT and the DELAY to 0007 for measuring the topline of the wave form and the DELAY to 0012 for measuring the baseline of the wave form Manually lock the HP 3458A to the range that gives the most resolution for the topline measurements Use this same range for the cor...

Page 62: ...t Make sure the Calibrator Mainframe impedance is set to 50 Ω The blue softkey under Output toggles the impedance between 50 Ω and 1 MΩ Proceed with the following steps 1 Set the HP 3458A to DCV NPLC 01 TRIG EXT and the DELAY to 0007 for measuring the topline of the wave form and the DELAY to 0012 for measuring the baseline of the wave form Manually lock the HP 3458A to the range that gives the mo...

Page 63: ...c 0 000065 25 mV 100 mV dc 0 000103 25 mV 100 mV dc 0 000103 110 mV 100 mV dc 0 000315 110 mV 100 mV dc 0 000315 500 mV 1 V dc 0 00129 500 mV 1 V dc 0 00129 2 2 V 10 V dc 0 00554 2 2 V 10 V dc 0 00554 6 6 V 10 V dc 0 01654 6 6 V 10 V dc 0 01654 3 31 AC Voltage Frequency Verification This procedure uses the following equipment PM 6680 Frequency Counter with an ovenized timebase Option PM 9690 or PM...

Page 64: ... with auto trigger measurement time set to 1 second or longer 1MΩ impedance and filter off 2 Using the N to BNC cable connect the CHAN 1 connector on the Calibrator Mainframe to PM 6680 channel A 3 Program the Calibrator Mainframe to output 2 1 V at each frequency listed in Table 3 9 4 Allow the PM 6680 reading to stabilize then record the PM 6680 reading for each frequency listed in Table 3 9 Com...

Page 65: ...0 00225 5 V 0 0035 6 5 V 0 02625 9 9 V 0 03475 3 33 Current Verification This procedure uses the following equipment Hewlett Packard 3458A Digital Multimeter with cable 1 Ω 10 Ω 100 Ω and 1000 Ω precision resistor assemblies Remove the front panel Current Loop using the 2 mm hex head driver 3 34 DC Current Verification 1 Connect the DMM directly to the vacant banana jacks on the calibrator 2 Progr...

Page 66: ... the topline and baseline of ac current uses the HP 3458A triggered by a change in input level see Table 3 12 for HP3458A settings The trigger level is set to 1 of the DCV range with ac coupling of the trigger signal Connect the precision resistor assemblies as indicated to the banana jacks on the front panel Connect the DMM to the precision resistor Set the HP 3458A to DCV Auto Range NPLC 10 FIXE...

Page 67: ... 1 099 mA 100 Ω 45 0 003248 1 099 mA 100 Ω 45 0 003248 1 099 mA 100 Ω 500 0 003248 1 099 mA 100 Ω 500 0 003248 1 099 mA 100 Ω 1000 0 003248 1 099 mA 100 Ω 1000 0 003248 1 10 mA 100 Ω 45 0 003250 1 10 mA 100 Ω 45 0 003250 1 10 mA 100 Ω 500 0 003250 1 10 mA 100 Ω 500 0 003250 1 10 mA 100 Ω 1000 0 003250 1 10 mA 100 Ω 1000 0 003250 10 99 mA 10 Ω 45 0 027975 10 99 mA 10 Ω 45 0 027975 10 99 mA 10 Ω 500...

Page 68: ...e topline is very near 0 V and the baseline is a negative voltage See Table 3 14 3 For each calibration step take samples for at least two seconds using the HP 3458A MATH functions to enter the average or mean value 4 The peak to peak value of the wave form is the difference between the topline and baseline measurements correcting for the load resistance error To make this correction multiply the ...

Page 69: ...z 10 MHz 10 Hz 3 38 Edge Duty Cycle Verification This procedure uses the following equipment PM 6680 Frequency Counter N to BNC cable supplied with the Scope Calibrator Set the Calibrator Mainframe to the Edge menu Press on the Calibrator Mainframe to activate the output Then follow these steps to verify Edge duty cycle 1 Set the PM 6680 s FUNCTION to measure duty cycle on channel A with auto trig...

Page 70: ...gure 3 6 Setup for Edge Rise Time Verification The Calibrator Mainframe should have the Edge menu on the display Press on the Calibrator Mainframe to activate the output Press the softkey under TRIG to select the TRIG 1 External Trigger output Program the Calibrator Mainframe to output 250 mV 1 kHz Set the DSO to these parameters Digital Storage Oscilloscope Setup Main Time Base position initial 4...

Page 71: ...the Edge menu is displayed program it to output 1 V p p 1 MHz and press the soft key under TRIG to select the TRIG 1 External Trigger output Press to activate the output and trigger Set the DSO vertical to 10 mV div and horizontal to 10 ns div Next set the signal edge against the left side of the DSO display Mentally note the signal amplitude 90 ns from the edge use this point as the reference lev...

Page 72: ... value is the difference between the topline and baseline Record these values in Table 3 18 and compare against the listed tolerance Table 3 18 Tunnel Diode Pulser Verification Nominal Value V p p Frequency Hz Measured Value V p p Deviation V p p 1 Year Spec V p p 11 100 0 2202 11 10000 0 2202 55 100 1 1002 55 10000 1 1002 100 100 2 0002 100 10000 2 0002 3 42 Leveled Sine Wave Amplitude Verificati...

Page 73: ... mV 1 08 mV 40 0 mV 1 10 mV 70 0 mV 1 70 mV 99 0 mV 2 28 mV 100 0 mV 2 30 mV 250 0 mV 5 30 mV 399 0 mV 8 28 mV 0 4 V 8 3 mV 0 8 V 16 3 mV 1 2 V 24 3 mV 1 3 V 26 3 V 3 4 V 68 3 mV 5 5 V 110 3 mV 3 43 MHz Leveled Sine Wave Flatness Verification Leveled Sine Wave flatness verification is divided into two frequency bands 50 kHz to 10 MHz low frequency and 10 MHz to 600 MHz high frequency The equipment...

Page 74: ...elf calibrate the power meter with the power sensor being used Refer to the Hewlett Packard 437B Operators Manual for details PRESET RESOLN 3 AUTO FILTER WATTS SENSOR TABLE 0 default 3 46 Low Frequency Verification This procedure provides an example of testing low frequency flatness using a 5 5 V output Follow the same procedure for testing other amplitudes only compare results against the flatnes...

Page 75: ...listed in Table 3 21 For this voltage range you will use the model HP 8482A power sensor 1 Program the Calibrator Mainframe for an output of 5 mV 30 MHz Press on the Calibrator Mainframe to activate the output 2 Allow the power meter reading to stabilize The power meter should display approximately 75 mW Enter the power meter s reading in Column A of Table 3 21 3 Enter 10 MHz into the Calibrator M...

Page 76: ...5 50 MHz 2 83 100 MHz 2 83 150 MHz 3 33 200 MHz 3 33 250 MHz 3 33 300 MHz 3 33 350 MHz 4 83 400 MHz 4 83 450 MHz 4 83 500 MHz 4 83 550 MHz 5 33 600 MHz 5 33 Complete Columns A E as follows A Enter the 437B present frequency Reading W B Enter the 437B 50 kHz Reading W C Apply power sensor correction factor for present frequency W CF Column A entry D Apply power sensor correction factor for 50 kHz W...

Page 77: ...0 MHz 5 01 0 01 50 MHz 2 50 100 MHz 2 50 150 MHz 3 00 200 MHz 3 00 250 MHz 3 00 300 MHz 3 00 350 MHz 4 50 400 MHz 4 50 450 MHz 4 50 500 MHz 4 50 550 MHz 5 00 600 MHz 5 00 Complete Columns A E as follows A Enter the 437B present frequency Reading W B Enter the 437B 50 kHz Reading W C Apply power sensor correction factor for present frequency W CF Column A entry D Apply power sensor correction facto...

Page 78: ...039 50 MHz 1 75 100 MHz 1 75 150 MHz 2 26 200 MHz 2 26 250 MHz 2 26 300 MHz 2 26 350 MHz 3 75 400 MHz 3 75 450 MHz 3 75 500 MHz 3 75 550 MHz 4 26 600 MHz 4 26 Complete Columns A E as follows A Enter the 437B present frequency Reading W B Enter the 437B 50 kHz Reading W C Apply power sensor correction factor for present frequency W CF Column A entry D Apply power sensor correction factor for 50 kHz...

Page 79: ... MHz 4 25 0 07 50 MHz 1 64 100 MHz 1 64 150 MHz 2 14 200 MHz 2 14 250 MHz 2 14 300 MHz 2 14 350 MHz 3 64 400 MHz 3 64 450 MHz 3 64 500 MHz 3 64 550 MHz 4 14 600 MHz 4 14 Complete Columns A E as follows A Enter the 437B present frequency Reading W B Enter the 437B 50 kHz Reading W C Apply power sensor correction factor for present frequency W CF Column A entry D Apply power sensor correction factor...

Page 80: ...100 50 MHz 1 60 100 MHz 1 60 150 MHz 2 10 200 MHz 2 10 250 MHz 2 10 300 MHz 2 10 350 MHz 3 60 400 MHz 3 60 450 MHz 3 60 500 MHz 3 60 550 MHz 4 10 600 MHz 4 10 Complete Columns A E as follows A Enter the 437B present frequency Reading W B Enter the 437B 50 kHz Reading W C Apply power sensor correction factor for present frequency W CF Column A entry D Apply power sensor correction factor for 50 kHz...

Page 81: ...MHz 4 04 0 399 50 MHz 1 52 100 MHz 1 52 150 MHz 2 02 200 MHz 2 02 250 MHz 2 02 300 MHz 2 02 350 MHz 3 52 400 MHz 3 52 450 MHz 3 52 500 MHz 3 52 550 MHz 4 02 600 MHz 4 02 Complete Columns A E as follows A Enter the 437B present frequency Reading W B Enter the 437B 50 kHz Reading W C Apply power sensor correction factor for present frequency W CF Column A entry D Apply power sensor correction factor...

Page 82: ...8 50 MHz 1 51 100 MHz 1 51 150 MHz 2 01 200 MHz 2 01 250 MHz 2 01 300 MHz 2 01 350 MHz 3 51 400 MHz 3 51 450 MHz 3 51 500 MHz 3 51 550 MHz 4 01 600 MHz 4 01 Complete Columns A E as follows A Enter the 437B present frequency Reading W B Enter the 437B 50 kHz Reading W C Apply power sensor correction factor for present frequency W CF Column A entry D Apply power sensor correction factor for 50 kHz W...

Page 83: ... MHz 4 01 1 3 50 MHz 1 51 100 MHz 1 51 150 MHz 2 01 200 MHz 2 01 250 MHz 2 01 300 MHz 2 01 350 MHz 3 51 400 MHz 3 51 450 MHz 3 51 500 MHz 3 51 550 MHz 4 01 600 MHz 4 01 Complete Columns A E as follows A Enter the 437B present frequency Reading W B Enter the 437B 50 kHz Reading W C Apply power sensor correction factor for present frequency W CF Column A entry D Apply power sensor correction factor ...

Page 84: ...5 50 MHz 1 50 100 MHz 1 50 150 MHz 2 00 200 MHz 2 00 250 MHz 2 00 300 MHz 2 00 350 MHz 3 50 400 MHz 3 50 450 MHz 3 50 500 MHz 3 50 550 MHz 4 00 600 MHz 4 00 Complete Columns A E as follows A Enter the 437B present frequency Reading W B Enter the 437B 50 kHz Reading W C Apply power sensor correction factor for present frequency W CF Column A entry D Apply power sensor correction factor for 50 kHz W...

Page 85: ...nics Verification Set the Calibrator Mainframe to the Levsine menu Follow these steps to verify the leveled sine wave harmonics 1 Using the N to BNC cable and BNC f to Type N m adapter connect the CHAN 1 connector on the Calibrator Mainframe to the HP 8590A 2 Program the Calibrator Mainframe to 5 5 V p p at each frequency listed in Table 3 22 Press on the Calibrator Mainframe to activate the outpu...

Page 86: ...dB 80 MHz 2 33 dB 80 MHz 3 4 5 38 dB 100 MHz 2 33 dB 100 MHz 3 4 5 38 dB 200 MHz 2 33 dB 200 MHz 3 4 5 38 dB 400 MHz 2 33 dB 400 MHz 3 4 5 38 dB 600 MHz 2 33 dB 600 MHz 3 4 5 38 dB 3 49 Time Marker Verification This procedure uses the following equipment PM 6680 Frequency Counter with a prescaler for the Channel C input Option PM 9621 PM 9624 or PM 9625 and ovenized timebase Option PM 9690 or PM 9...

Page 87: ...record the PM 6680 reading for each frequency listed for the Calibrator Mainframe 4 Invert the PM 6680 s frequency reading to derive the period For example a reading of 1 000006345 kHz has a period of 1 1 000006345 kHz 0 999993655 ms Record the period in the table and compare to the tolerance column Table 3 23 Marker Generator Verification Period s Measured Value s Deviation s 1 Year Spec s 5 1 4 ...

Page 88: ...brator Mainframe to activate the output Set the offset to 0 mV and the frequency to 1 kHz Then follow these steps to verify the wave generator function 3 51 Verification at 1 MΩ Set the Calibrator Mainframe impedance to 1 MΩ The blue softkey under SCOPE Z toggles the impedance between 50 Ω and 1 MΩ 1 Connect the N to BNC cable to the Calibrator Mainframe s CHAN 1 connector Connect the other end of...

Page 89: ...V 2 0000 0 00667 V square 220 mV 2 0000 0 0067 V square 560 mV 2 0000 0 0169 V square 899 mV 2 0000 0 02707 V square 0 90 V 2 0000 0 0271 V square 3 75 V 2 0000 0 1126 V square 6 59 V 2 0000 0 1978 V square 6 6 V 2 0000 0 1981 V square 30 8 V 2 0000 0 9241 V square 55 0 V 2 0000 1 6501 V sine 1 8 mV 2 8284 0 000154 V sine 21 9 mV 2 8284 0 000757 V sine 89 9 mV 2 8284 0 002797 V sine 219 mV 2 8284 ...

Page 90: ...o the peak to peak value 6 Multiply the peak to peak value by 0 5 50 Rload Rload where Rload the actual feedthrough termination resistance to correct for the resistance error Compare result to the tolerance column Table 3 25 Wave Generator Verification at 50 Ω Calibrator Mainframe Wave Type Calibrator Mainframe Output 10 kHz 5790A Reading V rms Conversion Factor 5790A Rdg x Conversion Factor V p p...

Page 91: ... is used to verify the pulse width High Frequency Digital Storage Oscilloscope Tektronix 11801 with Tektronix SD 22 26 sampling head 3 dB attenuator SMA m f BNC f to SMA adapter 2 N to BNC cable supplied with the Scope Calibrator 2 Put the Calibrator into standby Connect the N to BNC cable supplied with the Scope Calibrator to the Calibrator Mainframe s CHAN 1 connector Connect the other end of th...

Page 92: ...x 10 12 0 150 79 9 x 10 9 1 000 x 10 6 4 2 x 10 9 0 150 500 0 x 10 9 10 00 x 10 6 25 2 x 10 9 3 54 Pulse Skew Calibration and Verification The following equipment is used to Calibrate and verify Pulse Skew High Frequency Digital Storage Oscilloscope Tektronix 11801 with Tektronix SD 22 26 sampling head SMA T m f m connector 3 dB attenuator SMA m f BNC f to SMA adapter 2 0 5 m SMA m SMA m cable N t...

Page 93: ...der Pulse Press the soft key under TRIG to select the TRIG 1 External Trigger output Program the Calibrator Mainframe to output 1 ns pulse width and 3 µs period at 1 5 V with no skew i e the rising trigger edge against the rising pulse Press on the Calibrator to activate the output Press the soft key under SKEW Auto set the DSO Then set the DSO to these starting values Main Time Base position init...

Page 94: ... 9 1 5 500 x 10 9 0 02 6 6 x 10 9 3 58 MeasZ Resistance Verification The MeasZ resistance function is verified by measuring resistors of known values The measurement value is then compared to the resistor actual value The resistors must make a solid connection to a BNC f to enable a connection to the end of the N to BNC cable supplied with the Scope Calibrator The resistance values must be known a...

Page 95: ... f connector The capacitance values must be determined at a 10 MHz oscillator frequency Fluke uses an HP 4192A Impedance Analyzer at 10 MHz to determine the actual capacitance values This procedure uses the following equipment Adapters and capacitors to achieve 5 pF 29 pF 49 pF nominal values at the end of BNC f connector N to BNC cable supplied with the Scope Calibrator Set the Calibrator Mainfra...

Page 96: ...K MAX CHAN 1 5 AUX INPUT 20V PK MAX 20V PK MAX CAT 130V PK MAX SOURCE 30V DC MAX MEASURE 5820A OSCILLOSCOPE CALIBRATOR 2GHz 5820A 5820A Cable 50 Ω Feedthrough Termination yu061f eps Figure 3 9 Setup for Overload Function Verification Set the Calibrator Mainframe to the Overload menu Connect the N to BNC cable to the Calibrator Mainframe CHAN 1 connector Then follow these steps to verify the overlo...

Page 97: ...r adjusting the pots and trimmer caps Extender Card Oscilloscope Mainframe and Sampling Head Tektronix 11801 with SD 22 26 or Tektronix TDS 820 with 8 GHz bandwidth 10 dB Attenuator Weinschel 9 10 SMA or Weinschel 18W 10 or equivalent Cable provided with 5820A Spectrum Analyzer Hewlett Packard 8590A 3 63 Adjusting the Leveled Sine Wave Function There are two adjustment procedures that need to be m...

Page 98: ...towards the right As soon as the spur is minimized stop rotating R1 If you rotate it too far the spur will reappear Once you have turned R1 to the point at which the spur is at a minimum the signal is balanced between the VCOs and you have completed the adjustment R1 153 MHz Spur om052f eps Figure 3 10 Adjusting the Leveled Sine Wave Balance 3 66 Adjusting the Leveled Sine Wave Harmonics The follo...

Page 99: ...which both harmonics will be at the correct decibel level R8 33 dBc 38 dBc 2nd harmonic 3rd harmonic aag051f eps Figure 3 11 Adjusting the Leveled Sine Wave Harmonics 3 67 Adjusting the Aberrations for the Edge Function Adjustments need to be made after repair to the edge function to adjust the edge aberrations Note To verify the edge aberrations back to national standards you should send your Cal...

Page 100: ... amplitude as the next highest aberration 3 Adjust A90R35 so that the second and third overshoot aberrations are the same amplitude as the first aberration 4 Adjust A90R12 to set the edge signal occurring between 2 ns and 10 ns to the reference level set above 5 Readjust A90R36 and A90R35 to obtain equal amplitudes for the first second and third aberrations 6 Adjust A90R13 to set the edge signal o...

Page 101: ...Calibration and Verification Hardware Adjustments 3 3 63 R36 R12 R13 R35 T 1st Aberration 2nd Aberration 3rd Aberration om050f eps Figure 3 12 Adjusting Edge Aberrations ...

Page 102: ...5820A Service Manual 3 64 ...

Page 103: ...4 1 Chapter 4 Maintenance Title Page 4 1 Introduction 4 3 4 2 Replacing the Line Fuse 4 3 4 3 Cleaning the Air Filter 4 4 4 4 General Cleaning 4 6 4 5 Service Information 4 6 ...

Page 104: ...5820A Service Manual 4 2 ...

Page 105: ...r 2 The line power fuse and line voltage switch are located in a compartment on the right end of the ac input module To open the compartment and remove the fuse insert the blade of a standard screwdriver to the left of the tab located at the left side of the compartment cover 3 Pry the tab out of the slot and the compartment cover will pop part way out 4 Remove the compartment cover with your fing...

Page 106: ...r Warning To avoid risk of injury never operate or power the 5820A calibrator without the fan filter in place WCaution To avoid possible damage caused by overheating keep the area around the fan unrestricted If the air intake becomes restricted the intake air will be too warm or the filter will become clogged The air filter must be removed and cleaned every 30 days or more frequently if the calibr...

Page 107: ...lean the filter element a Wash the filter element in soapy water b Rinse the filter element thoroughly c Shake out the excess water then allow the filter element to dry thoroughly before reinstalling it 4 Reinstall the filter element by performing the filter removal steps in reverse order TO C LEAN FIL TER R EM O VE FR O M IN STR U M EN T AN D FLU SH W IT H SO APY W ATER W AR N IN G G R O U N D IN...

Page 108: ...on To prevent damage do not use aromatic hydrocarbons or chlorinated solvents for cleaning They can damage the plastic materials used in the calibrator 4 5 Service Information The warranty for the original purchaser of each Model 5820A Calibrator is 1 year beginning on the date received The warranty is located at the front of this manual Note If sending the 5820A in for servicing be sure to send a...

Page 109: ...justment for the GHz Module 5 6 5 10 GHz Leveled Sine Wave Frequency Verification 5 9 5 11 GHz Leveled Sine Wave Harmonics Verification 5 10 5 12 Verification Tables 5 11 5 13 Verification Tables for Channels 2 5 5 21 5 14 Leveled Sine Flatness 600 MHz 5 21 5 15 Pulse Width 5 23 5 16 Edge Rise Time Verification Channels 2 5 5 24 5 17 Pulse Skew 5 25 5 18 Channel 2 DMM Input 5 25 5 19 Channel 3 DMM...

Page 110: ...5820A Service Manual 5 2 ...

Page 111: ...Hz Module The GHz option extends leveled sine from 600 MHz to 2 1 GHz and adds a 150 ps 250 mV fast edge signal The GHz Module offers extended specifications for many of the 5820A Oscilloscope Calibrator functions See the GHz Option Specifications section later in this chapter 5 4 GHz Option Specifications Inclusion of the GHz option modifies several of the Calibrator s specifications The followin...

Page 112: ...y Range Characteristics into 50 Ω 10 MHz reference 600 MHz to 1 1 GHz 1 1 GHz to 1 6 GHz 1 6 GHz to 2 1 GHz Amplitude Characteristics Range p p 5 mV to 3 5 V Resolution 100 mV 3 digits 100 mV 4 digits Adjustment Range continuously adjustable 1 Year Absolute Uncertainty tcal 5 C 2 of output 300 µV 7 of output 300 µV 7 of output 300 µV 8 of output 300 µV Flatness relative to 10 MHz 1 not applicable ...

Page 113: ...the mother board to the VCO circuit on main Harmonics from the synthesized VCO circuit are removed by a switched filter system A92 contains the high frequency attenuator switching relays the fast edge circuit the leveled sine power amplifier and all of the high frequency connectors The attenuator switching relays replace the A90 board used on A55 In fact when the GHz module is installed A90 is rep...

Page 114: ... edge R175 adjusts the edge trigger level R188 adjusts the amplitude of the porch signal on which the fast edge signal rides While R175 can be adjusted through a hole in the machined cover adjusting R188 requires that the A92 cover be removed Before the module is taken apart the fast edge should be checked against the specifications when viewed through a scope set to 1 ns division If no signal abo...

Page 115: ... machined cover over the A92 module 2 Before the adjustment check that the resistance measured across the tunnel diode CR21 is between 2 Ω and 5 Ω If this measurement is less than 2 Ω or more than 5 Ω the tunnel diode may be damaged 3 Install the GHz module on the extender board 4 Connect the trigger signal from A55 to the trigger input J2 SMB on the A92 board 5 Connect a scope to the GHz signal o...

Page 116: ...s than 7 mV yu001f eps Figure 5 4 Bullet on the Porch 12 Adjust R175 to raise the porch level to the height at which fast edge is stable refer to figure 5 5 13 Use a cursor on the scope to mark this porch level Level I 14 By adjusting R175 continue to raise the porch level to the height at which the fast edge waveform is unstable 15 Use a cursor on the scope to mark this porch level Level II A typ...

Page 117: ...t should look like the waveform in Figure 5 2 Level I Level II yu004f eps Figure 5 6 Critically Distorted Edge at Porch Height Level II 18 Verify that the edge rise time is 150 ps at the cable end and that the amplitude from the porch to the top of the edge is 250 mV 5 10 GHz Leveled Sine Wave Frequency Verification This procedure uses the following equipment PM 6680 Frequency Counter with a presc...

Page 118: ...680 reading to stabilize then record the PM 6680 reading for each frequency listed in Table 5 4 5 11 GHz Leveled Sine Wave Harmonics Verification This procedure uses the following equipment Hewlett Packard 8592L Spectrum Analyzer BNC f to Type N m adapter N to BNC cable supplied with the Scope Calibrator See Figure 5 7 for the proper connections CHAN 2 CHAN 4 EXT TRIG EXT TRIG SOURCE MEASURE CHAN ...

Page 119: ...els listed in the Deviation column of Table 5 6 5 12 Verification Tables Table 5 4 through Table 5 7 are to be used to verify channels 2 5 The verification test points are provided here as a guide when verification to one year specifications is desired For more information on verification see Chapter 3 Table 5 4 GHz Leveled Sine Wave Frequency Verification Channels 1 2 and 5 Calibrator Mainframe F...

Page 120: ... 000 38 2nd harmonic 1 2 10 000 000 33 3rd harmonic 1 2 10 000 000 38 2nd harmonic 3 5 10 000 000 33 3rd harmonic 3 5 10 000 000 38 2nd harmonic 3 5 625 000 000 33 3rd harmonic 3 5 625 000 000 38 2nd harmonic 3 5 655 000 000 33 3rd harmonic 3 5 655 000 000 38 2nd harmonic 3 5 725 000 000 33 3rd harmonic 3 5 725 000 000 38 2nd harmonic 3 5 795 000 000 33 3rd harmonic 3 5 795 000 000 38 2nd harmonic...

Page 121: ...harmonic 3 5 1 425 000 000 33 3rd harmonic 3 5 1 425 000 000 38 2nd harmonic 3 5 1 475 000 000 33 3rd harmonic 3 5 1 475 000 000 38 2nd harmonic 3 5 1 500 000 000 33 3rd harmonic 3 5 1 500 000 000 38 2nd harmonic 3 5 1 525 000 000 33 3rd harmonic 3 5 1 525 000 000 38 2nd harmonic 3 5 1 600 000 000 33 3rd harmonic 3 5 1 600 000 000 38 2nd harmonic 3 5 1 650 000 000 33 3rd harmonic 3 5 1 650 000 000...

Page 122: ...0 000 6 0 1 925 000 000 6 0 1 975 000 000 6 0 2 025 000 000 6 0 2 075 000 000 6 0 1 3 Vpp 625 000 000 5 0 725 000 000 5 0 900 000 000 5 0 1 125 000 000 5 0 1 250 000 000 5 0 1 325 000 000 5 0 1 375 000 000 5 0 1 425 000 000 5 0 1 475 000 000 5 0 Complete Columns A E as follows A Enter the 437B present frequency Reading W B Enter the 437B 10 MHz Reading W C Apply power sensor correction factor for ...

Page 123: ... 000 000 6 0 1 925 000 000 6 0 1 975 000 000 6 0 2 025 000 000 6 0 2 075 000 000 6 0 1 2 Vpp 625 000 000 5 0 725 000 000 5 0 900 000 000 5 0 1 125 000 000 5 0 1 250 000 000 5 0 1 325 000 000 5 0 1 375 000 000 5 0 1 425 000 000 5 0 1 475 000 000 5 0 1 525 000 000 5 0 1 575 000 000 5 0 1 650 000 000 6 0 1 750 000 000 6 0 1 850 000 000 6 0 1 925 000 000 6 0 1 975 000 000 6 0 2 025 000 000 6 0 2 075 0...

Page 124: ... 1 475 000 000 5 0 1 525 000 000 5 0 1 575 000 000 5 0 1 650 000 000 6 0 1 750 000 000 6 0 1 850 000 000 6 0 1 925 000 000 6 0 1 975 000 000 6 0 2 025 000 000 6 0 2 075 000 000 6 0 0 400 Vpp 625 000 000 5 0 725 000 000 5 0 900 000 000 5 0 1 125 000 000 5 0 1 250 000 000 5 0 1 325 000 000 5 0 1 375 000 000 5 0 1 425 000 000 5 0 1 475 000 000 5 0 1 525 000 000 5 0 1 575 000 000 5 0 1 650 000 000 6 0...

Page 125: ...900 000 000 5 0 1 125 000 000 5 0 1 250 000 000 5 0 1 325 000 000 5 0 1 375 000 000 5 0 1 425 000 000 5 0 1 475 000 000 5 0 1 525 000 000 5 0 1 575 000 000 5 0 1 650 000 000 6 0 1 750 000 000 6 0 1 850 000 000 6 0 1 925 000 000 6 0 1 975 000 000 6 0 2 025 000 000 6 0 2 075 000 000 6 0 0 100 Vpp 625 000 000 5 1 725 000 000 5 1 900 000 000 5 1 1 125 000 000 5 1 1 250 000 000 5 1 1 325 000 000 5 1 1 ...

Page 126: ...0 6 1 1 975 000 000 6 1 2 025 000 000 6 1 2 075 000 000 6 1 0 070 Vpp 625 000 000 5 1 725 000 000 5 1 900 000 000 5 1 1 125 000 000 5 1 1 250 000 000 5 1 1 325 000 000 5 1 1 375 000 000 5 1 1 425 000 000 5 1 1 475 000 000 5 1 1 525 000 000 5 1 1 575 000 000 5 1 1 650 000 000 6 1 1 750 000 000 6 1 1 850 000 000 6 1 1 925 000 000 6 1 1 975 000 000 6 1 2 025 000 000 6 1 2 075 000 000 6 1 0 040 Vpp 62...

Page 127: ...25 1 525 000 000 5 25 1 575 000 000 5 25 1 650 000 000 6 25 1 750 000 000 6 25 1 850 000 000 6 25 1 925 000 000 6 25 1 975 000 000 6 25 2 025 000 000 6 25 2 075 000 000 6 25 0 025 Vpp 625 000 000 5 4 725 000 000 5 4 900 000 000 5 4 1 125 000 000 5 4 1 250 000 000 5 4 1 325 000 000 5 4 1 375 000 000 5 4 1 425 000 000 5 4 1 475 000 000 5 4 1 525 000 000 5 4 1 575 000 000 5 4 1 650 000 000 6 4 1 750 ...

Page 128: ...000 000 6 0 1 250 000 000 6 0 1 325 000 000 6 0 1 375 000 000 6 0 1 425 000 000 6 0 1 475 000 000 6 0 1 525 000 000 6 0 1 575 000 000 6 0 1 650 000 000 7 0 1 750 000 000 7 0 1 850 000 000 7 0 1 925 000 000 7 0 1 975 000 000 7 0 2 025 000 000 7 0 2 075 000 000 7 0 0 005 Vpp 625 000 000 7 0 725 000 000 7 0 900 000 000 7 0 1 125 000 000 7 0 1 250 000 000 7 0 1 325 000 000 7 0 1 375 000 000 7 0 1 425 ...

Page 129: ...Verification Tables for Channels 2 5 The following Verification Tables are to be used to verify channels 2 5 for other functions The verification test points are provided here as a guide when verification to one year specifications is desired 5 14 Leveled Sine Flatness 600 MHz Table 5 8 Leveled Sine Flatness 5 5 V Channel 2 Channel Function Measurement Amplitude Frequency Measured Value Deviation ...

Page 130: ...ine flatness 5 5 580000000 0 2201 3 levsine flatness 5 5 590000000 0 2201 3 levsine flatness 5 5 600000000 0 2201 Table 5 10 Leveled Sine Flatness 5 5 V Channel 4 Channel Function Measurement Amplitude Frequency Measured Value Deviation Spec Vp p 4 levsine flatness 5 5 1000000 0 0826 4 levsine flatness 5 5 10000000 0 0826 4 levsine flatness 5 5 30000000 0 0826 4 levsine flatness 5 5 70000000 0 082...

Page 131: ... 5 levsine flatness 5 5 360000000 0 1926 5 levsine flatness 5 5 390000000 0 1926 5 levsine flatness 5 5 400000000 0 1926 5 levsine flatness 5 5 480000000 0 1926 5 levsine flatness 5 5 570000000 0 2201 5 levsine flatness 5 5 580000000 0 2201 5 levsine flatness 5 5 590000000 0 2201 5 levsine flatness 5 5 600000000 0 2201 5 15 Pulse Width Table 5 12 Pulse Width Channel Function Measurement Amplitude ...

Page 132: ...Value Deviation Spec s 3 edge rise time 0 025 1000000 3 00E 10 3 edge rise time 1 1000000 3 00E 10 Table 5 15 Edge Rise Time Channel 4 Channel Function Measurement Amplitude Frequency Measured Value Deviation Spec s 4 edge rise time 0 025 1000000 3 00E 10 4 edge rise time 1 1000000 3 00E 10 Table 5 16 Edge Rise Time Channel 5 Channel Function Measurement Amplitude Frequency Measured Value Deviatio...

Page 133: ... 10 3 pulse skew 1 00E 08 1 00E 08 2 00E 07 5 00E 10 3 pulse skew 5 00E 09 1 00E 08 2 00E 07 5 00E 10 3 pulse skew 1 50E 08 1 00E 08 2 00E 07 5 00E 10 3 pulse skew 3 00E 08 1 00E 08 2 00E 07 5 00E 10 5 18 Channel 2 DMM Input Table 5 18 Levsine Amplitude Channel Function Measurement Amplitude Frequency Measured Value Deviation Spec s 2 levsine amplitude 5 5 50000 0 1103 Table 5 19 DC Voltage 1 MΩ C...

Page 134: ...cvh topline aberration 0 001 1000 0 000105 2 acvh baseline aberration 0 001 1000 0 000105 2 acvh offset 130 1000 0 32504 2 acvh amplitude 130 1000 0 065005 2 acvh topline aberration 130 1000 0 6501 2 acvh baseline aberration 130 1000 0 6501 2 acvh offset 130 1000 0 32504 2 acvh amplitude 130 1000 0 065005 2 acvh topline aberration 130 1000 0 6501 2 acvh baseline aberration 130 1000 0 6501 Table 5 ...

Page 135: ...itude 0 001 1000 0 0000055 3 acvh topline aberration 0 001 1000 0 000105 3 acvh baseline aberration 0 001 1000 0 000105 3 acvh offset 0 001 1000 0 0000425 3 acvh amplitude 0 001 1000 0 0000055 3 acvh topline aberration 0 001 1000 0 000105 3 acvh baseline aberration 0 001 1000 0 000105 3 acvh offset 130 1000 0 32504 3 acvh amplitude 130 1000 0 065005 3 acvh topline aberration 130 1000 0 6501 3 acvh...

Page 136: ... Measured Value Deviation Spec Vp p 4 acvh offset 0 001 1000 0 0000425 4 acvh amplitude 0 001 1000 0 0000055 4 acvh topline aberration 0 001 1000 0 000105 4 acvh baseline aberration 0 001 1000 0 000105 4 acvh offset 0 001 1000 0 0000425 4 acvh amplitude 0 001 1000 0 0000055 4 acvh topline aberration 0 001 1000 0 000105 4 acvh baseline aberration 0 001 1000 0 000105 4 acvh offset 6 V 1000 0 32504 4...

Page 137: ...130 0 032525 5 dcvh 130 0 032525 Table 5 32 AC Voltage 1 MΩ Channel Function Measurement Amplitude Frequency Measured Value Deviation Spec Vp p 5 acvh offset 0 001 1000 0 0000425 5 acvh amplitude 0 001 1000 0 0000055 5 acvh topline aberration 0 001 1000 0 000105 5 acvh baseline aberration 0 001 1000 0 000105 5 acvh offset 0 001 1000 0 0000425 5 acvh amplitude 0 001 1000 0 0000055 5 acvh topline ab...

Page 138: ... amplitude 2 5 10 kHz 0 0502 5 edge topline aberration 2 5 10 kHz 0 0145 5 22 Capacitance Table 5 34 Capacitance Channels 2 5 Channel Function Measurement Value Measured Value Deviation Cap F 2 measz capacitance 1 30E 11 1 15E 12 3 measz capacitance 1 30E 11 1 15E 12 4 measz capacitance 1 30E 11 1 15E 12 5 measz capacitance 1 30E 11 1 15E 12 ...

Page 139: ...6 1 Chapter 6 Replaceable Parts Title Page 6 1 Introduction 6 3 6 2 How to Obtain Parts 6 3 6 3 List of Replacement Parts 6 3 ...

Page 140: ...5820A Service Manual 6 2 ...

Page 141: ...f the part is subject to damage by static discharge Description Fluke stock number Total quantity Any special notes i e factory selected part WCaution A symbol indicates a device that may be damaged by static discharge 6 2 How to Obtain Parts Electrical components may be ordered directly from the manufacturer by using the manufacturers part number or from the Fluke Corporation and its authorized r...

Page 142: ... FORM STL 5 20 312 9 494641 A63H29 CLAMP CABLE 50 ID ADHESIVE MOUNT 1 688629 A63MP2 ASSEMBLY FRONT PANEL 1 673087 A63MP3 A63MP4 HANDLE INSTRUMENT GREY 7 2 886333 A63MP7 FRONT PANEL GHZ 1 673084 A63MP8 DECAL OUTPUT BLOCK 1 673191 A63MP9 LENS BEZEL 1 945246 A63MP12 KEYPAD ELASTOMERIC 1 1586646 A63MP13 LCD MODULE 16X2 CHAR TRANSMISSIVE 1 929179 A63MP14 LCD MODULE 40X2 CHAR TRANSMISSIVE 1 929182 A63MP...

Page 143: ...Replaceable Parts List of Replacement Parts 6 6 5 5820A Final Assembly Sheet 1 of 9 yu172f eps Figure 6 1 Final Assembly ...

Page 144: ...5820A Service Manual 6 6 5820A Final Assembly Sheet 2 of 9 yu173f eps Figure 6 1 Final Assembly cont ...

Page 145: ...cement Parts 6 6 7 Table 6 3 Rear Panel Module List of Replaceable Parts Reference Designator Description Qty Fluke Stock Number A65MP4 A65MP5 HANDLE INSTRUMENT GREY 7 2 886333 A65MP8 AIR FILTER 1 945287 A65W20 FAN ASSEMBLY 1 843029 ...

Page 146: ...5820A Service Manual 6 8 5820A Final Assembly Sheet 3 of 9 yu174f eps Figure 6 1 Final Assembly cont ...

Page 147: ... 1 661485 A64H13 28 A64H78 H81 SCREW FHU P LOCK MAG SS 6 32 250 20 320093 A64H29 CLAMP CABLE 50 ID ADHESIVE MOUNT 1 688629 A64MP2 COVER INSTRUMENT TOP 1 647146 A64MP3 COVER INSTRUMENT BOTTOM 1 627213 A64MP4 REAR PANEL 1 617230 A64MP14 A64MP15 A64MP22 A64MP24 BOTTOM FOOT MOLDED GREY 7 4 868786 A64MP16 21 PLASTIC PART CAP POLYETH 5 8 24 41 6 689320 A64MP51 CABLE GHZ OUT 1 661964 A64MP54 CABLE MHZ GH...

Page 148: ...5820A Service Manual 6 10 5820A Final Assembly Sheet 4 of 9 yu175f eps Figure 6 1 Final Assembly cont ...

Page 149: ...Replaceable Parts List of Replacement Parts 6 6 11 5820A Final Assembly Sheet 5 of 9 yu180f eps Figure 6 1 Final Assembly cont ...

Page 150: ... Qty Fluke Stock Number A54MP2 ADAPTER COAX SMA F SMA M SMA F TEE 1 688710 A54MP8 A54MP13 CABLE SMA RT TO RT 2 659968 A54W2 4 CABLE SMA ST TO RT 3 626025 A54W6 CABLE TRIGGER 5 CHANNEL 1 926009 A54W9 12 CABLE SMA ST TO RT 4 626017 A56MP9 AUX CABLE SMA RT RT 1 647104 A99MP6 CABLE CURRENT LOOP 1 673092 A99A99 PCA LOOP GHZ 1 661667 ...

Page 151: ...Replaceable Parts List of Replacement Parts 6 6 13 5820A Final Assembly Sheet 6 of 9 yu176f eps Figure 6 1 Final Assembly cont ...

Page 152: ...5820A Service Manual 6 14 5820A Final Assembly Sheet 7 of 9 yu177f eps Figure 6 1 Final Assembly cont ...

Page 153: ...rence Designator Description Qty Fluke Stock Number A54MP2 ADAPTER COAX SMA F SMA M SMA F TEE 1 688710 A54MP8 A54MP13 CABLE SMA RT TO RT 2 659968 A54W6 CABLE TRIGGER 5 CHANNEL 1 926009 A54W9 12 CABLE SMA ST TO RT 4 626017 A56MP9 AUX CABLE SMA RT RT 1 647104 A64MP51 CABLE GHZ OUT 1 661964 A99MP6 CABLE CURRENT LOOP 1 673092 ...

Page 154: ...5820A Service Manual 6 16 5820A Final Assembly Sheet 8 of 9 yu178f eps Figure 6 1 Final Assembly cont ...

Page 155: ...Replaceable Parts List of Replacement Parts 6 6 17 5820A Final Assembly Sheet 9 of 9 yu179f eps Figure 6 1 Final Assembly cont ...

Page 156: ...5820A Service Manual 6 18 ...

Page 157: ...ification 3 31 Edge Frequency function Verification 3 30 Edge function Rise time verification 3 31 specifications 1 8 Theory of Operation 2 7 External reference input specifications 1 14 F Fuse replacing the 4 3 G General cleaning 4 6 General specifications 1 6 H Hardware adjustments 3 58 Hardware adjustments for 3 58 I Instruction manuals 1 4 L Leveled sine wave function specifications 600 Mhz 1 ...

Page 158: ...on 5 Channel option 2 9 5 3 dc voltage measurement mode 2 8 GHz module 2 9 5 5 high frequency switching 2 9 input impedance mode capacitance 2 8 input impedance mode resistance 2 8 overload mode 2 9 pulse generator 2 8 trigger 2 9 wave generator mode wavgen 2 8 Time marker function specifications 1 10 5 5 Time Marker function Theory of Operation 2 7 Verification 3 48 Trigger signal edge function s...

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