| Fluke 5720A

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5700A/5720A Series Service ManualMulti-Function Calibrator LIMITED WARRANTY & LIMITATION OF LIABILITY 5/94Declaration of the Manufacturer or Importer Interference InformationBescheinigung des Herstellers/Importeurs Page OPERATOR SAFETY SUMMARY HIGH VOLTAGELETHAL VOLTAGE Terms in this ManualSymbols Marked on Equipment Power SourceUse the Proper Power Cord Use the Proper FuseSERVICING SAFETY SUMMARY FOR QUALIFIED SERVICE PERSONNEL ONLYDo Not Service Alone Use Care When Servicing With Power OnFIRST AID FOR ELECTRIC SHOCK Free the Victim From the Live ConductorGet Help Never Accept Ordinary and General Tests for DeathTable of Contents Introduction and SpecificationsTitle Page5700A/5720A Series Theory of Operation±PA Supplies Digital Control 5700A/5720A Series How the DAC is Used in CalibrationOhms Cal Assembly A9 Calibration and VerificationCalibration Procedure Maintenance TroubleshootingRear Panel Assembly Access Using Remote Commands Reserved for ServicingSchematic Diagrams List of Replaceable Parts5700A/5720A Series Service Manualviii Title List of TablesPage Unregulated Supplies from the Filter Assembly 5700A/5720A SeriesA16A1 Power Amplifier Digital Control SIP PCA Test Record for Flatness Check of the AC 2 mV RangeA11A2 DAC Buffered Reference SIP PCA A13A1 Oscillator Wideband SMD PCAService Manual 5700A/5720A SeriesTitle List of FiguresPage Ohms Main Assembly Simplified Schematic 5700A/5720A SeriesPower Amplifier with Calibrator Set to 22V at 1 kHz A16A1 Power Amplifier Digital Control SIP PCAA13A1 Oscillator Wideband SMD PCA A15 High Voltage/High Current PCAService Manual 5700A/5720A SeriesChapter Introduction and SpecificationsTitle Service Manual 5700A/5720A Series II Calibrator1-1. Introduction 1-2. Contacting Fluke 1-4. How to Use this Manual1-3. About this Manual 1-5. Additional Instruction Manuals 1-6. Wideband AC Voltage Module Option 5700A-03∙ 5700A/5720A Series II Getting Started Manual PN ∙ 5700A/5720A Series II Operator Reference Guide PN1-7. Auxiliary Amplifiers 1-9. Support Equipment and Services1-8. 5725A Amplifier 1-11. 732B-200 Direct Volt Maintenance Program U.S.A. Only 1-10. 732B Direct Voltage Reference Standard1-12. 742A Series Resistance Standards 1-13. Wideband AC Module Option 5700A-03 Calibration Support1-14. Service Centers 1-15. The Components of the 5700A/5720A Series II Calibrator1-16. Calibrating the 5700A/5720A Series II Calibrator Calibrating the 5700A/5720A Series II Calibrator1-17. The Calibration Process 1-18. Establishing Traceability1-21. Developing a Performance History 1-20. Calibration Check1-19. Calibration Reports 1-24. Specifications 1-25. Specification Confidence Levels1-26. Using Absolute and Relative Uncertainty Specifications 1-22. Range Calibration1-27. Using Secondary Performance Specifications Specifications1-28. DC Voltage Specifications Service Manual5700A/5720A Series II Calibrator 5720AIntroduction and Specifications DC Voltage Specifications5700A 5700AOvershoot 5 % Common mode rejection 140 dB, DC to 400 Hz Service Manual5700A/5720A Series II Calibrator 1-29. AC Voltage Specifications Introduction and SpecificationsAC Voltage Specifications 5720AService Manual 5700A/5720A Series II Calibrator5720A 95 % Confidence LevelIntroduction and Specifications AC Voltage Specifications± 5 C from calibration temperature 5700AService Manual 5700A/5720A Series II Calibrator5700A 95% Confidence LevelIntroduction and Specifications AC Voltage Specifications± ppm output + μV 0-10 C andService Manual 5700A/5720A Series II Calibrator5725A Amplifier Figure 1-2. Volt-Hertz Capability1-30. Resistance Specifications Introduction and SpecificationsResistance Specifications 5720AService Manual 5700A/5720A Series II Calibrator5700A 5700AIntroduction and Specifications Resistance Specifications±1 C Note CharacterizedService Manual 5700A/5720A Series II CalibratorTable 1-13. Current Derating Factors I IL1-31. DC Current Specifications Introduction and SpecificationsDC Current Specifications 5720A 99%Service Manual 5700A/5720A Series II Calibrator5700A 5700ADC Current Specifications Introduction and SpecificationsOvershoot 5 % 1-32. AC Current Specifications Service Manual5700A/5720A Series II Calibrator 5720A 99%Introduction and Specifications AC Current Specifications5720A 95% 95 % Confidence LevelService Manual 5700A/5720A Series II Calibrator5700A 99 % Confidence LevelIntroduction and Specifications AC Current Specifications5700A 95 % Confidence LevelService Manual Temperature Coefficient Note5700A/5720A Series II Calibrator ± ppm output + nA1-33. Wideband AC Voltage Option 5700-03 Specifications Introduction and SpecificationsWideband AC Voltage Option 5700-03 Specifications Table 1-22. Wideband AC Voltage Option 5700-03 Specifications1-34. General Specifications Service Manual5700A/5720A Series II Calibrator Guard isolation 201-35. Auxiliary Amplifier Specifications Introduction and SpecificationsAuxiliary Amplifier Specifications 5220A AC Current, 180-day specificationsService Manual 5700A/5720A Series II CalibratorChapter Theory of OperationTitle 2-36 Theory of Operation 2-155 2-1. Introduction 2-2. Calibrator Overview2-3. Internal References 2-4. Hybrid Reference Amplifiers2-8. Analog Section Overview 2-7. Digital Section Overview2-6. Digital-to-Analog Converter DAC Figure 2-1. Digital Section Block Diagram Theory of OperationAnalog Section Overview ahp003f.eps2-9. Functional Description Presented by Output Function 2-10. DC Voltage Functional DescriptionFigure 2-2. Analog Section Block Diagram, Part Theory of OperationTheory of Operation ahp33f.epsFigure 2-3. Analog Section Block Diagram, Part Service Manual5700/5720A Series II Calibrator 2-11. AC Voltage Functional Description 2-13. DC Current Functional Description 2-12. Wideband AC V Functional Description Option2-14. AC Current Functional Description 2-16. System Interconnect Detailed Circuit Description 2-17. Digital Motherboard Assembly A42-15. Ohms Functional Description 2-18. Transformer Assembly A22 2-19. Analog Motherboard Assembly A3Theory of Operation Functional Description Presented by 0utput FunctionFigure 2-4. System Interconnections ahp35f.eps5700/5720A Series II Calibrator Service ManualFigure 2-4. System Interconnections cont Motherboard Connector Table 2-1. Analog Motherboard ConnectorsConnected to Assembly 2-21. Rear Panel Assembly A21 2-22. Filter PA Supply Assembly A182-24. Digital Power Supply Assembly A19 2-23. Digital Section Detailed Circuit Description2-25. +5V Power Supply 2-26. ±12V Power Supplies2-27. +35V Power Supply Digital Section Detailed Circuit Description2-28. +75V Power Supply 2-29. +35V and +75V Shut-Down Circuit2-31. Power-Up and Reset Circuit 2-30. CPU Central Processing Unit Assembly A202-32. Clock Generation 5700A/5720A Series II Calibrator Figure 2-5. CPU Assembly Block Diagramahp004f.eps Signal Name Theory of OperationDigital Section Detailed Circuit Description Table 2-3. CPU Acronym Glossary2-33. Watchdog Timer 2-34. Address Decoding and DTACK Data AcknowledgeTable 2-4. CPU Memory Map Chip Select2-37. RAM Random-Access Memory 2-35. Interrupt Controller2-36. Glue Logic 2-38. ROM Read-Only Memory2-40. DUART Dual Universal Asynchronous Receiver/transmitter Circuit 2-39. Electrically-Erasable Programmable Read-Only Memory EEPROM2-41. Clock/Calendar Circuit 2-42. Clock Filter Circuit 2-43. CPU to Rear Panel Interface2-44. CPU to Front Panel Interface 2-45. Fan Monitor2-46. Front Panel Assembly A2 2-47. Clock Regeneration Circuitry2-48. Refresh Failure Detect Circuitry 2-49. Decoding and Timing Circuitry2-50. Control Display Circuitry êêêêêêê2-51. Output Display Circuitry 2-52. Keyboard Scanner Circuitry 2-53. Knob Encoder Circuitry2-55. Keyboard Assembly A1 2-54. Led Circuitry2-56. Analog Section Detailed Circuit Description 2-57. Filter/PA Supply A18, Low-voltage Filter/Regulator Section2-58. Unregulated OSC Supplies 2-59. Unregulated LH Supplies2-60. Unregulated S Supplies 2-61. Triac Circuit2-64. FR2 Supplies 2-65. Filter/PA Supply A18, Power Amplifier Output Supply Section2-66. ±PA Supplies Digital Control 5700A/5720A Series II Calibrator Figure 2-6. Power Amplifier Output Supply Simplified Schematicahp005f.eps 2-67. ±250V and ±500V Supplies 2-68. +PA and -PA Supplies2-69. ±PA Supply Current Limit ∙ PA CT is the center tap2-71. Voltage Regulator Circuitry 2-70. Regulator/Guard Crossing Assembly A172-72. Regulated OSC Supplies 2-73. Regulated LH Supplies 2-74. Regulated S Supplies+15 OSC -15 OSC +5RLH +5LH -5LH +44S -44S +17S -17S 15S +30FR1 +30FR2 +15V +5.975V +5.1V +44.15V +17.000V -17.000V +30.96V +30.96V2-75. FR1 Supply 2-76. FR2 Supply2-77. Guarded Digital Control Circuitry 2-79. Inguard Memory Configuration2-78. Inguard CPU Memory Map 2-81. Inguard Watchdog Timer 2-82. Power-Up and Reset Circuitry2-80. Inguard Clock Circuit 2-83. Break Detection2-85. Interface to Guarded Digital Bus 2-87. Switch Matrix Assembly A82-86. Inguard CPU Interrupts 2-88. Switch Matrix Digital Control Theory of Operation Figure 2-7. Switch Matrix Assembly Simplified SchematicSystem Interconnection Detailed Circuit Description 2-89. Switch Matrix Operation 11V DC and 22V DC Ranges 3. Apply 7V to the relay coils by setting PC5 highFigure 2-8. Switch Matrix Configuration for 11V DC and 22V DC Ranges Theory of OperationAnalog Section Detailed Circuit Description ahp006f.eps2-90. Switch Matrix Operation 2.2V AC and 22V AC Ranges 2-91. Switch Matrix Operation 220V AC and DC RangesFigure 2-9. Switch Matrix Configuration for 2.2V and 22V AC Ranges Theory of OperationAnalog Section Detailed Circuit Description ahp007f.eps5700A/5720A Series II Calibrator Figure 2-10. Switch Matrix Configuration for 220V DC and AC Rangesahp008f.eps 2-92. Switch Matrix Operation 2.2V DC Range 5700A/5720A Series II Calibrator Figure 2-11. Switch Matrix Configuration for 2.2V DC Rangeahp009f.eps 2-93. Calibration of the 2.2V Range 2-94. Switch Matrix Operation 220 mV DC RangeTo calibrate the offset Figure 2-12. Calibration of the 2.2V DC Range 5700A/5720A Series II Calibratorahp010f.eps Figure 2-13. Switch Matrix Configuration for 220 mV DC Range Theory of OperationAnalog Section Detailed Circuit Description ahp011f.eps2-96. Switch Matrix Operation 2.2 mV and 22 mV AC Ranges 2-95. Switch Matrix Operation 220 mV AC Range2-97. Calibration of the mV Ranges Theory of Operation Analog Section Detailed Circuit DescriptionFigure 2-14. V AC, 2.2 mV AC, and 22 mV AC Range ahp012f.epsFigure 2-15. Divider Calibration 5700A/5720A Series II Calibratorahp013f.eps 2-98. Internal CAL Zero Amplifier Figure 2-16. Divider Gain Calibration 5700A/5720A Series II Calibratorahp014f.eps 2-100. DAC Assembly A11 2-99. Switch Matrix 5725A Amplifier Interface2-101. Basic DAC Theory of Operation 0.1 x 13V + 0.5 x 0.78 mV = Figure 2-17. DAC Assembly Simplified Schematic Theory of OperationAnalog Section Detailed Circuit Description ahp015f.eps2-103. DAC Assembly Reference Circuitry 2-102. DAC Assembly Digital ControlProgrammable Peripheral Interface IC U31 is the heart of this circuit 2-104. Duty-Cycle Control Circuit 2-106. DAC Output Stage 2-105. DAC Filter CircuitREFCOM 2-107. Sense Current Cancellation Circuit 2-108. Linearity Control Circuit2-109. Negative Offset Circuit 2-110. DAC Output Switching2-111. DAC Buffered Reference Sip 2-113. ADC Amplifier 2-112. Calibration Hardware2-114. ADC Input Selection 2-115. ADC Circuit ∙ ADC reference voltage ∙ ADC dac ∙ ADC comparator/amplifierTheory of Operation Analog Section Detailed Circuit DescriptionFigure 2-18. ADC Circuit Measurement Functions ahp016f.eps2-116. How the DAC is Used in Calibration 2-117. DAC Assembly CalibrationINPUT 2-119. Oscillator Control Assembly A12 2-118. Oscillator Section Overview2-122. Sense Current Cancellation 2-121. Oscillator Input Switching2-120. Oscillator Control Digital Control 2-124. Error Integrator 2-123. Averaging Converter2-125. Three-Pole Filter 2-126. Analog Amplitude Control LoopFigure 2-19. Oscillator Control Analog Control Loop 5700A/5720A Series II Calibratorahp017f.eps 2-127. AC/DC Thermal Transfer Circuit Figure 2-20. AC/DC Thermal Transfer Circuit 5700A/5720A Series II Calibratorahp018f.eps 2-128. Oscillator Calibration 2-130. Oscillator Output Assembly A13 2-129. AC/DC Frequency Response CharacterizationTheory of Operation Analog Section Detailed Circuit DescriptionFigure 2-21. Quadrature RC Oscillator Circuit ahp019f.eps2-131. Oscillator Output Digital Control 2-132. Quadrature RC Oscillator2-134. Phase−locked Loop 2-133. Oscillator Amplitude Control2-136. Oscillator Wideband Smd Assembly A13A1 2-135. 2.2V and 22V Range Output Amplifier2-139. Power Amplifier Assembly A16 2-138. Phase Shifter2-137. Output Stage 2-140. Power Amplifier Digital Control Sip Assembly A16A1 1. Write the proper data for these relays to port A of the 82C55 U112-141. PA Common Circuitry 2-142. +PA and -PA Supplies2-143. PA Input Stage ∙ ±185V ∙ ±365V2-144. PA Mid Stage 2-145. PA Output Stage2-147. PA in Standby 2-146. PA Sense Current Cancellation Circuitry2-148. PA Operation 220V DC Range 5700A/5720A Series II Calibrator Figure 2-22. Power Amplifier Simplified Schematicahp020f.eps 2-150. High Voltage Assembly Support Mode 2-149. PA Operation 220V AC Range2-151. High Voltage AC 1100V Range 2-152. High Voltage DC 1100V Range and Current 2.2A Range2-153. 220V DC Internal Calibration Network 2-154. PA CalibrationFigure 2-23. Power Amplifier DC Calibration Network Theory of OperationAnalog Section Detailed Circuit Description ahp021f.epsPower Amplifier dc gain of approximately -20 is calibrated next. The Power Amplifier is configured as in the 220V dc operation, except the input is connected to the DAC’s 6.5V reference BRF6 and BSRF6 by U2C and U2D respectively. The resulting -130V at the Power Amplifier output is connected to the 175 kΩ end of the internal cal resistor network by relay K3. The 25 kΩ end of this network is connected to DAC OUT HI and DAC SENSE HI by relay K1. The output of the internal cal amplifier is connected to the DAC’s adc circuit as in the previous steps, and the DAC OUTPUT is adjusted until checkpoint is measured by the adc circuit. Since the exact attenuation of the resistor networks is already known, the exact Power Amplifier output voltage can be calculated. This in turn gives the exact Power Amplifier dc gain, since the exact value of 6.5V reference BSRF6 is known Figure 2-24. Power Amplifier Calibration AC Attenuator Theory of OperationAnalog Section Detailed Circuit Description f2-24.eps2-155. High Voltage Assemblies A14 and A15 2-156. 1100V AC RangeFigure 2-25. High Voltage/High Current Assembly 1100V AC Range Theory of OperationAnalog Section Detailed Circuit Description ahp022f.eps2-157. 1100V DC Range 2-158. HVDC Power Supply Filter Circuit2-159. HV DC Output Series Pass and Current Limit Circuit Figure 2-26. High Voltage/High Current Assembly 1100V DC Range Theory of OperationAnalog Section Detailed Circuit Description ahp023f.eps2-160. DC HV Amplifier/AC Sense Buffer 2-161. 2.2A RangeFigure 2-27. High Voltage/High Current Assembly 2.2A AC and DC Ranges Theory of OperationAnalog Section Detailed Circuit Description ahp024f.eps2-162. 2.2A Power Supply Filter Circuit 2-163. High Voltage Digital Control 2-164. High Voltage Calibration 2-165. Calibration of the AC FunctionFigure 2-28. High Voltage/High Current Assembly Calibration Theory of OperationAnalog Section Detailed Circuit Description ahp025f.eps2-166. Calibration of the Current Function 2-167. High Voltage Magnitude ControlAnalog Section Detailed Circuit Description Theory of Operationahp026f.eps 2-168. Ohms Overview 2-169. Ohms Main Assembly A10 2-170. Selection of Resistance ValuesService Manual Figure 2-30. Ohms Assemblies Simplified Schematic5700/5720A Series II Calibrator ahp38f.epsFigure 2-31. Ohms Main Assembly Simplified Schematic Theory of OperationAnalog Selection Detailed Circuit Description ahp39f.eps2-171. Ohms Main Assembly Support of Current Function Calibration 2-173. Ohms Cal Assembly A92-172. Ohms Digital Control 2-174. Ohms CAL Digital Control2-176. Two-Wire Ohmmeter Compensation Circuit 2-175. 1, 1.9, and Short Resistance5700A/5720A Series II Calibrator Figure 2-32. Two-Wire Lead Drop Compensation Circuitahp027f.eps 2-177. Two-Wire Compensation Power Supplies 2-178. High Side Cancellation2-179. Low Side Cancellation 2-180. Ohms CalibrationFigure 2-33. Calibration to an External 10 kΩ Standard 5700A/5720A Series II Calibratorahp028f.eps 2-181. Calibrating to the External 10 KW Standard 2-183. Calibrating 100 KW 2-182. Calibrating 10 KW and 19 KW2-184. Completion of High Resistance Value Calibration The 10Ω, 19Ω, 100Ω and 190Ω resistance values are determined using 2V from the 2/5/10V source and using internal 101 divider Z5 in conjunction with the DAC. To get 2V, Q2 and Q3 are both turned on, which parallels both the 11.535 kΩ value and the 3.846 kΩ value with the 50 kΩ value. The lower voltage is required to lower the power dissipation in the resistors Figure 2-34. Ratio Calibration, 10 Ω From 100 Ω 5700A/5720A Series II Calibratorahp029f.eps 2-186. Current/High Resolution Oscillator Assembly Overview A7 2-185. Calibrating to the External 1W Standard2-188. Current Input Switching 2-187. Current SectionFigure 2-35. Current Output Simplified Schematic Theory of OperationAnalog Section Detailed Circuit Description ahp030f.eps2-190. Transconductance Amplifiers 2-189. Complementary Drive Circuit2-191. Shunt Resistors 2-193. Current Output Switching 2-192. Feedback Loop2-194. Generation of the 2.2A Range Table 2-15. Relay Settings for Current Range Selection Range2-198. Current Assembly Calibration 2-195. Current Guard Buffer2-196. Compliance Limiter 2-197. Current/Compliance Voltage MonitorFigure 2-36. Current Assembly Calibration Theory of OperationAnalog Section Detailed Circuit Description ahp031f.eps2-199. High-Resolution Oscillator Section ∙ 10.00 Hz to 119.99 Hz ∙ 0.1200 kHz to 1.1999 kHz2-201. Phase-Locked Loop 2-200. Reference Frequency Amp/Divider2-204. Rear Panel Assembly A21 2-203. Hi-Res Output Switching2-202. 5-500k Output Divider 2-206. Rear Panel Address Mapping 2-205. Rear Panel Power Supplies∙ RPDUARTCS*, D00000-D0001F ∙ RPIEEECS*, D00020-D0002F 2-208. IEEE-488 GPIB Interface 2-207. Clock Regeneration Circuit2-209. RS-232C Interface 2-210. Auxiliary Amplifier Interface 2-212. Phase Lock In/Variable Phase out2-211. 5725A Interface 2-214. Rear Panel CPU Interface 2-213. Rear Panel Relay ControlPort A PA0-PA7 provides the input lines for relay driver U16 2-216. Wideband Oscillator Assembly A6 2-217. Wideband Oscillator Power Supplies2-215. Wideband AC Module Option 2-218. Wideband Oscillator Digital Control2-219. Phase-Locked Loop and Divider Circuit 2-220. Amplitude Control Amplifier and X10 Wideband Amplifier 2-221. Wideband Oscillator Filters2-222. Wideband Output Assembly A5 Figure 2-37 is a simplified schematic for the Wideband Output assemblyFigure 2-37. Wideband Output Assembly Simplified Schematic Theory of OperationAnalog Section Detailed Circuit Description ahp032f.eps2-223. Wideband Output Power Amplifier Circuit 2-225. Wideband Output RMS Sensor and Amplitude Control Circuit 2-224. Wideband Output Attenuators2-226. Wideband Output Overload Control Circuit 2-227. Wideband Output Digital Control 2-228. Wideband Output Calibrationconnector is connected back to the OUTPUT HI SENSE and OUTPUT LO SENSE binding posts Service Manual 5700A/5720A Series II CalibratorChapter Calibration and VerificationTitle 3-30 3-1. Introduction Calibration and Verification3-2. Accessing the Fuse 3-3. Cleaning the Air Filter Cleaning the Air Filter3-5. Calibration 3-4. Cleaning the Exterior3-6. Calibrating the 5700A/5720A Series II to External Standards 3-7. Calibration Requirements 3-8. When to Adjust the Calibrator’s Uncertainty SpecificationsCalibrating the 5700A/5720A Series II to External Standards 3-9. Calibration Procedure 4. Enter the ambient temperature then press E. The display shows 5. Connect the 732B to the calibrator as shown in FigureCalibration and Verification Calibrating the 5700A/5720A Series II to External StandardsIF3-6.EPS IF3-5.EPSIF3-7.EPS After a few seconds, the following display appears RESISTANCE STANDARD CALIBRATORFigure 3-4. 742A-1 and 742A-10k External Calibration Connections F7-4.EPS16. Set the rear panel CALIBRATION switch to NORMAL 3-10. Range Calibration 4. Press the “DC V” softkey to bring up the next menu shown below PREV MENU IF057.EPS3-11. Calibrating the Wideband AC Module Option 5700A-03 Calibrating the Wideband AC Module Option 5700A-032. Press the “Cal “ softkey to bring up the following menu 4. Press the “Gain” softkey to bring up the following display 3-12. Performing a Calibration Check Press Pto exit the calibration menus 3-13. Full Verification Figure 3-7. Overview of Verification Tests3-15. Warm-up Procedure for All Verification Tests 3-14. Required Equipment for All Tests5700A/5720A Series II Calibrator Table 3-2. List of Required Equipment for Main OutputEquipment Description3-16. Resistance Verification Test 13. The low-value 1Ω, 1.9Ω, and 10Ω tests are summarized in Table 3-17. Two-Wire Compensation Verification 3-18. DC Voltage Verification Test 3-19. DC Voltage One-Tenth Scale Linearity Test 3-20. Direct Current Accuracy Verification Test 3-21. AC Voltage Frequency Accuracy Test 3-22. Output Level Tests For AC V RangesUse Table 3-23 5720A or Table 3-24 5700A for the test records 3-23. AC Current Test, 22 mA to 11A Ranges Table 3-8. 5790A Adjustment Counts5790A Adjustment Counts Calibration and Verification1. Connect the equipment as shown in Figure 3-12A use the 2A shunt Figure 3-12. Alternating Current Test Setup A. Alternating Current Test Setup, 22 mA to 2A Using 5790A InputB. Alternating Current Test Setup, 10A Using 5790A Input Calibration and Verification3-24. AC Current Test, 2 mA and 200 μA Ranges Hi Output LoMetal Film Resistor Mounted on Dual Banana Plug 200 Pomona Cable 1362-A-18Figure 3-14. Metal Film Resistor Equivalent Circuit 3-25. Rationale for Using Metal-Film Resistors to Measure AC CurrentFigure 3-15. Metal Film Resistor in Test Circuit 3-26. Wideband Frequency Accuracy Test 3-27. Wideband AC Voltage Module Output Verification3-28. Wideband Output Accuracy at 1 kHz Test Wideband Output Accuracy at 1 kHz Test3-29. Wideband Output Flatness Test 3-30. Wideband Flatness Calibration Procedure 3-31. Optional Tests 3-32. DC Voltage Load Regulation Test3-34. DC Voltage Output Noise 10 Hz to 10 kHz Test 3-33. DC Voltage Linearity TestOptional Tests 2. Set the Oscilloscope Differential Amplifier controls as shown below 3-37. Wideband Distortion Testing 3-35. DC Voltage Output Noise 0.1 to 10 Hz Test3-36. AC Voltage Distortion Test WWarning3-39. Minimum Use Requirements 3-38. AC Voltage Overshoot TestMinimum Use Specifications Calibration and VerificationMinimum Use Requirements Table 3-15. Minimum Use Requirements3-40. Determining Test Limits for Other Calibration Intervals 130 + 1000000*0.000000040/0.002=130 ppm + 20 ppm = 150 ppm DMM Error 1Ω Std Res Value1Ω Std Voltage Measured 1Ω Std VoltageDMM Error Table 3-16. 5720A Resistance Test Record contStd Res Value DMM Std Res RdgDMM Error Table 3-17. 5700A Resistance Test Record1Ω Std Res Value 1Ω Std VoltageDMM Error Table 3-17. 5700A Resistance Test Record cont MaxStd Res Value DMM Std Res RdgDivider Setting 5700A/5720A Series II CalibratorTable 3-18. DC Voltage Test Record for 5720A 5720A RangeDivider Setting Calibration and VerificationDetermining Test Limits for Other Calibration Intervals Table 3-19. DC Voltage Test Record for 5700AUUT Error SettingError A+B 5700A/5720A Series II CalibratorUUT Error Error A+BSetting Calibration and VerificationError Display Reading 5700A/5720A Series II CalibratorTable 3-23. 5720A AC Voltage Output Test Record OutputError Calibration and VerificationDetermining Test Limits for Other Calibration Intervals Output LevelError Display Reading 5700A/5720A Series II CalibratorTable 3-24. 5700A AC Voltage Output Test Record OutputError Error Display ReadingCalibration and Verification Determining Test Limits for Other Calibration IntervalsUUT Error Display Calculated Error5700A/5720A Series II Calibrator Table 3-26. 5720A AC Current 20 mA to 10A Accuracy Test RecordUUT Error Display Calculated ErrorCalibration and Verification Determining Test Limits for Other Calibration IntervalsError Error5700A/5720A Series II Calibrator Table 3-28. 5720A AC Current 2 mA and 200 μA Accuracy Test RecordCalibration and Verification Determining Test Limits for Other Calibration IntervalsTable 3-30. Wideband Frequency Accuracy Test Record Frequency HzMeasured Error Measured Flatness Error5700A/5720A Series II Calibrator Table 3-31. Wideband Accuracy at 1 kHz Test RecordMeasured Flatness Error Calibration and VerificationDetermining Test Limits for Other Calibration Intervals Table 3-32. Wideband Flatness Test Record contTable 3-33. Wideband Absolute Error 10 Hz to 500 kHz 1 kHz Absolute Error ppmFlatness Error ppm Error Sum ppmDiv. Setting Kelvin-Varley SettingCalibration and Verification Determining Test Limits for Other Calibration IntervalsUUT Error Display Reading 5700A/5720A Series II CalibratorTable 3-37. AC V Distortion Test Summary 5700A/5720A Series II Outputstatic awareness A Message FromFluke Corporation 5. USE STATIC SHIELDING CONTAINERS FOR HANDLING AND TRANSPORT Chapter MaintenanceTitle Service Manual 5700A/5720A Series II Calibrator4-2. Cleaning the Air Filter 4-1. Introduction4-3. General Cleaning 4-4. Cleaning PCA’s4-5. Access Procedures 4-9. Rear Panel Removal and Installation4-10. Rear Panel Assembly Access 4-11. Front Panel Removal and Installation 4-12. Display Assembly Removal and Installation4-13. Keyboard Assembly Removal and Installation 4-14. Analog Assembly Removal and InstallationFigure 4-5. Analog and Digital Assemblies 5700A/5720A Series II CalibratorFRONT PANEL 4-18. Front/Rear Binding Post Reconfiguration 4-15. Digital Assembly Removal and Installation4-16. Power Transformer Removal and Installation 4-17. Hybrid Cover Removal6. Install the Front Panel 4-21. Replacing the Clock/Calendar Backup Battery 4-19. Installing a Wideband AC Module Option4-20. Clearing Ghost Images from the Control Display 4-22. Using Remote Commands Reserved for Servicing 4-23. Using the ETIME CommandUsing The Fatality? and Fatalclr Commands ETIMEFATALITY? FATLCLR?Response DescriptionService Manual 5700A/5720A Series II CalibratorChapter TroubleshootingTitle Service Manual 5700A/5720A Series II Calibrator5-2. Interpreting Diagnostic Fault Codes 2701 A7 8255 Port a Fault2702 A7 8255 Port B Fault 2703 A7 8255 Port C Fault2705 A7 Oven Regulation Fault 2706 A7 Current Compliance Fault2707 A7 Hardware Initialization Fault 2709 A7 Current Magnitude Fault2718 Fault In Setting Up AC For Diagnostics 2719 A7 8255 Was Reset2713 A7 Hi-Res Loop In 100Hz Range 2714 A7 Hi-res Loop In 1kHz Range2801 A11 8255 Port a Wires 2802 A11 8255 Port B Data Bus2803 A11 8254 Status Words 2804 A11 DAC Heaters Not Regulated2808 A11 ADC Amp Gain Error 2809 A11 DAC Monitoring Fault2810 A11 +11V DC Range Fault 2811 A11 -11V DC Range Fault2815 A11 6.5V Reference Fault 2816 A11 13V Buffered Reference Fault2817 A11 13V Reference Fault 2818 Assembly A11 Missing2822 A8/A11 -11/22V DC Zero Estimate Fault 2826 A11 A/D Overload Fault3101 A14 8255 Port a Fault 3102 A14 8255 Port B Fault3103 A14 8255 Port C Fault 3104 A15 HV Oven Regulation Fault3105 A15 HV I Oven Regulation Fault 3106 A15 DC HV Amp Noise Fault3109 A15 HV +DC Preamplifier Fault 3110 A15 HV +DC Series Pass & Current Fault3111 A15 HV +DC High Voltage Output Fault 3112 A15 HV +DC Ref/error Amplitude Fault3116 A15 HV -DC Reference/error Amp Fault 3117 A14/A15 HV +DC Current Error Amp Fault3118 A14/A15 HV -DC Current Error Amp Fault 3119 A14/A15 HV +DC Current Abs. Value3126 A14/A15 HV AC 100Hz, Preamp Fault 3122 A14/A15 HV AC 1kHz, Preamp Lo3123 A14/A15 HV AC 1kHz, Preamp Mid 3124 A14/A15 HV AC 1kHz, Preamp Hi3128 A14/A15 HV AC 1kHz, Output Lo 3129 A14/A15 HV AC 1kHz, Output Mid3130 A14/A15 HV AC 1kHz, Output Hi 3131 A14/A15 HV AC 100Hz, Output Lo3135 Assembly A14 Not Responding 3136 A14 8255 Was Reset3137 A14/A15/A16 2.2A AC Range Mag. Fault 3134 Spare3301 A9 8255 Port a Fault 3302 A9 8255 Port B Fault3140 A14/A15/A16 2.2A AC Range Abs. Value 3141 A14/A15/A16 2.2A DC Range Dummy Load3303 A9 8255 Port C Fault 3304 A9 10V Source Fault3305 A9 5V Source Fault 3306 A9 2V Source Fault3309 A9 Diff Amp Gain Fault 3310 A9 Diff Amp Noise Fault3311 A9/A10 Ohms 101 Divider Fault 3312 A9/A10 Ohms 11 Divider Fault3315 A9/A10 10 Ohm Cal Diag Fault 3316 A9/A10 19 Ohm Cal Diag Fault3317 A9/A10 100 Kilohm Ratio Fault 3318 A9/A10 190 Kilohm Ratio Fault3321 A9/A10 10M Ohm Ratio Fault 3324 A9/A10 100M Ohm Ratio Fault3325 A9/A10 10 Kilohm Check Fault 3326 A9/A10 19 Kilohm Check Fault3327 A9/A10 1 Kilohm Check Fault 3328 A9/A10 1.9 Kilohm Check Fault3329 A9/A10 100 Ohm Check Fault 3330 A9/A10 190 Ohm Check Fault3334 A9/A10 1.9 Ohm Check Fault 3335 A9/A10 Ohms Short Check Fault3336 A9/A10 2 Wire Compensation Fault 3337 A9/A10 Ohms Correction Factor Fault3341 A9/A10 190 Ohm Cal Diag Fault 3400 A12 8255 Control Word3401 A12 8255 Port A 3402 A12 8255 Port B3408 A13 Fixed Ampl. Osc Fault 3409 A13 Phase Lock Loop Fault3410 A12/A13 22V Amp Bias Adj Error 3412 A12 To A13 Interface Fault3416 A12/A13 DAC 15th Bit Fault 3417 A12 DC Sensor Buffer Fault3418 A12 Sensor Loop/SQ. Root Amp Fault 3414 A12/A13 Nonlinear Control Loop 2vrng3423 Assembly A12 Missing 3424 Assembly A13 Missing3425 Assembly A12 Or A13 Not Responding 3426 A12 8255 Was Reset3508 A16/A14 220V AC Range Output Fault 3510 A16 220V Amp Fault3503 A16 8255 Port C 3504 Spare3520 A16 PA Oven Regulation Fault 3511 A16 Incorrect PA Input3512 Spare 3513 Spare3521 Assembly A16 Is Not Responding 3524 A16 Power Amp Is Too Hot3525 220V DC Initialization Fault 3526 220V AC Initialization Fault3530 A16 8255 Was Reset 3600 +17S Supply Fault3601 -17S Supply Fault 3602 +15S Supply Fault3605 -42S Supply Fault 3606 LH Com Ground Fault3607 -5lH Supply Fault 3608 +5rLH Supply Fault3611 -PA Supply Fault 3612 +15 OSC Supply Fault3613 -15 OSC Supply Fault 3614 OSC Com Ground Fault3615 S Com Ground Fault 3701 A21 8255 Port A Fault3702 A21 8255 Port B Fault 3703 A21 8255 Port C Fault3801 A8 8255 Port A Fault 3802 A8 8255 Port B Fault3803 A8 8255 Port C Fault 3804 A8 Zero Amp Lo Noise Fault3809 A8 Zero Amp Hi Gain Fault 3810 A8 2.2V Amp Noise Fault 3811 A8 Zero Amp Offset3812 A8 2.2V Gain Fault 3813 A8 220mV Offset Fault 3814 A8 220mV Divider Fault 3815 A8 22mV Divider Fault 3816 Spare3824 A8 Oven Regulation Fault 3825 Assembly A8 Not Responding3826 A8 8255 Was Reset 3827 Assembly A8 Too Hot 3900 A5 8255 Control Word3905 A6 Phase Lock Loop At 10MHz 3906 A6 Phase Lock Loop At 30MHz3907 A5 Rms Sensor At 10MHz 3908 A5 Rms Sensor At 30MHz3914 A5 0DB Output Attenuation Fault 3915 A5 10DB Output Attenuation Fault3911 A5/A6 Ampl. Control At 30MHz 3912 A5/A6 Output Offset At 10MHz3916 A5 20DB Output Attenuation Fault 3917 A5 30DB Output Attenuation Fault3918 A5 40DB Output Attenuation Fault 3922 A5/A6 Wideband Initialization Fault3923 A5 8255 Was Reset 5-3. Component-level Troubleshooting5-4. Troubleshooting the Wideband Output Assembly A5 Component-level Troubleshooting 5-5. Troubleshooting the Wideband Oscillator Assembly A6 All measurements are referenced to SCOM TP16 or TP17 and allFigure 5-2. Waveform at TP1 F5-2.EPSFigure 5-3. Waveform at TP15 F5-3.EPSFigure 5-4. Waveform at Pins 14 and 15 of U1 F5-4.EPS10 ms F5-5.EPS5-6. Troubleshooting the Current/Hi-Res Assembly A7 5-7. Current SectionFigure 5-6. Waveform at Pin 11 of K2 F5-6.EPSFigure 5-7. Waveform at Pin 6 of K2 1.2 ΩK5C, K5D K10, K13F5-9.EPS F5-10.EPSF5-11.EPS 5-8. Hi-Res Oscillator Section All measurements are referenced to LHCOM TP18Figure 5-13. Waveform at TP12 F5-13.EPS5-9. Troubleshooting the Switch Matrix Assembly A8 Figure 5-15. Waveform at TP16 F5-15.EPS5-10. Troubleshooting the Ohms Cal Assembly A9 5-11. Two-wire Compensation Circuit5-12. Troubleshooting the Ohms Main Assembly A10 5-13. Troubleshooting the DAC Assembly A11 Troubleshooting Component-level TroubleshootingFigure 5-17. Waveform at TP6 Figure 5-18. Waveform at TP4, Calibrator Set toFigure 5-19. Waveform at TP4, Calibrator Set to 5700A/5720A Series II CalibratorF5-19.EPS Figure 5-20. Waveform at TP7 F5-20.EPSFigure 5-21. Waveform at TP5 F5-21.EPS5-14. Duty-cycle Control Circuit Figure 5-22. Waveform at Pin 10 of U6 F5-22.EPSTroubleshooting Component-level TroubleshootingFigure 5-23. Waveform at Pin 6 of U13 Figure 5-24. Waveform at Pin 4 of U10U11, Q30, Q31, Q32, and their associated components 5-15. ADC Circuit 5-16. Buffered Reference SIP Assembly A11A2 5-17. Troubleshooting the Oscillator Control Assembly A12 5700A/5720A Series II Calibrator Figure 5-27. Waveform at Anode of CR4Figure 5-28. Waveform at Pin 6 of U11 F5-27.EPSFigure 5-29. DC Sense Buffer Waveform TP6 F5-29.EPS5-18. Troubleshooting the Oscillator Output Assembly A13 ∙ TP5 positive voltage ∙ TP4 negative voltage ∙ TP3 positive voltage 5-19. Troubleshooting the High Voltage Control Assembly A14 Figure 5-31. Waveform at TP3 F5-31.EPS5-20. Magnitude Control Circuit 5-21. Troubleshooting the High Voltage/High Current Assembly A15 operation refer to Figure 2-25 in the Theory of Operation section. During normal operation in the 1100V ac mode, internal software monitors the output and makes corrections or trips the instrument into standby. This internal monitoring can cause difficulty when troubleshooting a faulty High Voltage assembly. If during the next step 8 the instrument keeps tripping into standby, defeat the monitoring by connecting a jumper from TP9 to TP10 on the DAC assembly 5-22. Troubleshooting the Power Amplifier Assembly A16 Figure 5-32. Waveform at Pin 18 of Hybrid H4Figure 5-33. Power Amplifier with Calibrator Set to 22V at 1 kHz AC elsewhere in the Calibrator Remove any jumpers left in place from step 8 before continuing5-23. Troubleshooting the Filter/PA Supply Assembly A18 J201. The +PA supply at +180Vshould go into current limit. The oscilloscope should show a repeating pattern in which the +PA supply climbs to about +180V then drops to 0V. If a failure is detected, check Q203, VR246, VR213, U201C, and associated components Service Manual 5700A/5720A Series II CalibratorList of Replaceable Parts ChapterService Manual 5700A/5720A Series II Calibrator6-2. How to Obtain Parts A * symbol indicates a device that may be damaged by static discharge6-1. Introduction 6-3. Manual Status Information6-5. Service Centers Manual Status Information Assembly Name5700A/5720A Series II Calibrator Ref or Option NoService Centers Table 6-1. Front Panel Final AssemblyList of Replaceable Parts Reference Description DesignatorFigure 6-1. Front Panel Final Assembly 5700A/5720A Series II Calibrator5700A-T&B f6-1.epsTable 6-1. Chassis Final Assembly Service CentersList of Replaceable Parts Figure 6-2. Chassis Final Assembly 5700A/5720A Series II Calibrator5700A T&B 1 ofService Centers Figure 6-2. Chassis Final Assembly contList of Replaceable Parts f61a2.epsTable 6-1. Rear Panel Final Assembly 5700A/5720A Series II CalibratorService Centers Figure 6-3. Rear Panel Final AssemblyList of Replaceable Parts f61b.epsISOLATOR,OPTO,OPTICAL SWITCH,INFRARED 5700A/5720A Series II CalibratorTable 6-2. A1 Keyboard PCA CR1-4 DT1, DT2 W1Service Centers List of Replaceable Parts5700A-1603 Figure 6-4. A1 Keyboard PCATable 6-3. A2 Front Panel PCA 5700A/5720A Series II CalibratorDesignator List of Replaceable Parts Service CentersTable 6-3. A2 Front Panel PCA cont 5700A/5720A Series II Calibrator 5700A-1602Figure 6-5. A2 Front Panel PCA 57001602.EPSList of Replaceable Parts Service CentersTable 6-4. A3 Analog Motherboard PCA 5700A-1601 5700A/5720A Series II CalibratorFigure 6-6. A3 Analog Motherboard PCA List of Replaceable Parts Service CentersTable 6-5. A4 Digital Motherboard PCA 5700A/5720A Series II Calibrator 5700A-1605Figure 6-7. A4 Digital Motherboard PCA 57001605.EPSService Centers List of Replaceable PartsTable 6-6. A5 Wideband Output PCA, Option Designator5700A/5720A Series II Calibrator Table 6-6. A5 Wideband Output PCA, Option -03 contService Centers List of Replaceable PartsTable 6-6. A5 Wideband Output PCA, Option -03 cont R69,R70 R72,R73,R80-83 R74 R75 R78,R79,R86-89 R92-95 R96-99 R100 R1015700A/5720A Series II Calibrator 5700A-1611Figure 6-8. A5 Wideband Output PCA, Option 57001611.EPSList of Replaceable Parts Service CentersTable 6-7. A6 Wideband Ocillator PCA, Option CONNECTOR ,CONN,DIN41612,TYPE C,RT ANG,64 PIN 5700A/5720A Series II CalibratorTable 6-7. A6 Wideband Ocillator PCA, Option -03 cont DesignatorService Centers List of Replaceable PartsTable 6-7. A6 Wideband Ocillator PCA, Option -03 cont R58,R112,R212 R312,R412,R512 R59 R61 R62,R64,R65,R69 R63 R68 R715700A/5720A Series II Calibrator 5700A-1610Figure 6-9. A6 Wideband Oscillator PCA, Option 57001610.EPSList of Replaceable Parts Service CentersTable 6-8. A7 Current/High-Res Oscillator PCA 5700A/5720A Series II Calibrator Table 6-8. A7 Current/High-Res Oscillator PCA contService Centers List of Replaceable PartsTable 6-8. A7 Current/High-Res Oscillator PCA cont Designator5700A/5720A Series II Calibrator 5700A-1621Figure 6-10. A7 Current/HIgh-Res Oscillator PCA 57001621.EPSService Centers Table 6-9. A8 Switch Matrix PCAList of Replaceable Parts Reference DesignatorTable 6-9. A8 Switch Matrix PCA cont 5700A/5720A Series II CalibratorService Centers Figure 6-11. A8 Switch Matrix PCAList of Replaceable Parts 5700A-16225700A/5720A Series II Calibrator Table 6-10. A9 Ohms Cal PCAList of Replaceable Parts Service CentersTable 6-10. A9 Ohms Cal PCA cont 5700A/5720A Series II Calibrator 5700A-1631Figure 6-12. A9 Ohms Cal PCA 57001631.EPSList of Replaceable Parts Service CentersTable 6-11. A10 Ohms Main PCA 5700A/5720A Series II Calibrator 5700A-1630Figure 6-13. A10 Ohms Main PCA 57001630.EPSService Centers List of Replaceable PartsTable 6-12. A11 DAC PCA C110,C111 CR1,CR3-6,CR8, CR12,CR13 CR25700A/5720A Series II Calibrator Table 6-12. A11 DAC PCA contList of Replaceable Parts Service CentersTable 6-12. A11 DAC PCA cont Table 6-12. A11 DAC PCA cont 5700A/5720A Series II CalibratorVR13 VR18,VR22 VR25 VR26 VR27 VR28 VR29 VR33,VR34 X1 Z2 Z4 Z5 Z8 Z10 Service Centers List of Replaceable Parts5700A-1640 Figure 6-14. A11 DAC PCA5700A/5720A Series II Calibrator Table 6-13. A11A1 DAC Filter SIP PCAService Centers List of Replaceable Parts5700A-1643 Figure 6-15. A11A1 DAC Filter SIP PCA5700A/5720A Series II Calibrator Table 6-14. A11A2 DAC Buffered Reference SIP PCAService Centers List of Replaceable Parts5700A-1644 Figure 6-16. A11A2 DAC Buffered Reference SIP PCA5700A/5720A Series II Calibrator Table 6-15. A12 Oscillator Control PCAService Centers List of Replaceable PartsTable 6-15. A12 Oscillator Control PCA cont StockTable 6-15. A12 Oscillator Control PCA cont 5700A/5720A Series II CalibratorDesignator Service Centers List of Replaceable Parts5700A-1650 Figure 6-17. A12 Oscillator Control PCA5700A/5720A Series II Calibrator Table 6-16. A13 Oscillator Output PCAList of Replaceable Parts Service CentersTable 6-16. A13 Oscillator Output PCA cont 5700A/5720A Series II Calibrator Table 6-16. A13 Oscillator Output PCA contService Centers List of Replaceable Parts5700A-1651 Figure 6-18. A13 Oscillator Output PCATable 6-17. A13A1 Oscillator Wideband SMD PCA 5700A/5720A Series II CalibratorDesignator Service Centers List of Replaceable Parts5700A-1652 Figure 6-19. A13A1 Oscillator Wideband SMD PCA5700A/5720A Series II Calibrator Table 6-18. A14 High Voltage Control PCAList of Replaceable Parts Service CentersTable 6-18. A14 High Voltage Control PCA cont 5700A/5720A Series II Calibrator 5700A-1661Figure 6-20. A14 High Voltage Control PCA 57001661.EPSList of Replaceable Parts Service CentersTable 6-19. A15 High Voltage/High Current PCA 5700A/5720A Series II Calibrator Table 6-19. A15 High Voltage/High Current PCA contService Centers List of Replaceable Parts5700A-1660 Figure 6-21. A15 High Voltage/High Current PCATable 6-20. A16 Power Amplifier PCA 5700A/5720A Series II CalibratorDesignator CR20,CR21,CR23Service Centers Table 6-20. A16 Power Amplifier PCA contList of Replaceable Parts R9,R10,R16,R33, R40,R50 R59, R115,R148 R149 R11,R12Table 6-20. A16 Power Amplifier PCA cont 5700A/5720A Series II CalibratorService Centers Figure 6-22. A16 Power Amplifier PCA5700A-7670 List of Replaceable PartsTable 6-21. A16A1 Power Amplifier Digital Control SIP PCA 5700A/5720A Series II CalibratorService Centers Figure 6-23. A16A1 Power Amplifier Digital Control SIP PCAList of Replaceable Parts 5700A-16715700A/5720A Series II Calibrator Table 6-22. A17 Regulator/Guard Crossing PCAList of Replaceable Parts Service CentersTable 6-22. A17 Regulator/Guard Crossing PCA cont 5700A/5720A Series II Calibrator 5700A-1680Figure 6-24. A17 Regulator/Guard Crossing PCA 57001680.EPSService Centers List of Replaceable PartsTable 6-23. A18 Filter/PA Supply PCA CR1,CR2,CR04, CR5 CR8,CR10, CR12,CR13Table 6-23. A18 Filter/PA Supply PCA cont 5700A/5720A Series II CalibratorStock Service Centers List of Replaceable PartsTable 6-23. A18 Filter/PA Supply PCA cont VR211,VR217 VR227,VR231 VR212,VR216 VR226,VR232 VR214,VR2305700A/5720A Series II Calibrator 5700A-7690Figure 6-25. A18 Filter/PA Supply PCA 57001690.EPSService Centers Table 6-24. A19 Digital Power Supply PCAList of Replaceable Parts C24,C25 CR1-4,CR9-12 CR8,CR16, CR21- 24,CR29-34Table 6-24. A19 Digital Power Supply PCA cont 5700A/5720A Series II CalibratorService Centers Figure 6-26. A19 Digital Power Supply PCAList of Replaceable Parts 5700A-16045700A/5720A Series II Calibrator Table 6-25. A20 CPU PCARef Des DescriptionService Centers List of Replaceable PartsTable 6-26. A20 CPU PCA cont Ref DesFigure 6-27. A20 CPU PCA 5700A/5720A Series II Calibrator57001606.EPS List of Replaceable Parts Service CentersTable 6-27. A21 Rear Panel PCA 5700A/5720A Series II Calibrator Table 6-27. A21 Rear Panel PCA contService Centers List of Replaceable Parts5700A-1609 Figure 6-28. A21 Rear Panel PCAService Manual 5700A/5720A Series II CalibratorSchematic Diagrams ChapterTitle PageService Manual 5700A/5720A Series II CalibratorSchematic Diagrams Figure 7-1. A1 Keyboard PCA5700A/5720A Series Service ManualFigure 7-1. A1 Keyboard PCA cont Schematic Diagrams Figure 7-2. A2 Front Panel PCA5700A/5720A Series Service ManualFigure 7-2. A2 Front Panel PCA cont Schematic Diagrams Figure 7-2. A2 Front Panel PCA cont5700A/5720A Series Service ManualFigure 7-2. A2 Front Panel PCA cont Schematic Diagrams Figure 7-2. A2 Front Panel PCA cont5700A/5720A Series Service ManualFigure 7-3. A3 Analog Motherboard PCA Schematic Diagrams Figure 7-23. A3 Analog Motherboard PCA cont5700A/5720A Series Service ManualFigure 7-3. A3 Analog Motherboard PCA cont Schematic Diagrams Figure 7-3. A3 Analog Motherboard PCA cont5700A/5720A Series Service ManualFigure 7-3. A3 Analog Motherboard PCA cont Schematic Diagrams Figure 7-4. A4 Digital Motherboard PCA5700A/5720A Series Service ManualFigure 7-4. A4 Digital Motherboard PCA cont Figure 7-4. A4 Digital Motherboard PCA cont Schematic Diagramsahp46f.tif 5700A/5720A Series Service ManualFigure 7-4. A4 Digital Motherboard PCA cont 5700A-1611 Schematic DiagramsFigure 7-5. A5 Wideband Output PCA Option 5700A/5720A Series Service ManualFigure 7-5. A5 Wideband Output PCA Option -03 cont Schematic Diagrams Figure 7-5. A5 Wideband Output PCA Option -03 cont5700A/5720A Series Service ManualFigure 7-5. A5 Wideband Output PCA Option -03 cont Schematic Diagrams 7-235700A-7610 Figure 7-6. A6 Wideband Oscillator PCA Option5700A/5720A Series Service ManualFigure 7-6. A6 Wideband Output PCA Option Schematic Diagrams Figure 7-6. A6 Wideband Oscillator PCA Option -03 cont5700A/5720A Series Service ManualFigure 7-6. A6 Wideband Oscillator PCA Option -03 cont Figure 7-7. A7 Current/High-Resolution Oscillator PCA Schematic Diagrams5700A-1621 Figure 7-7. A7 Current/High-Resolution Oscillator PCA cont Service Manual5700A/5720A Series Schematic Diagrams Figure 7-7. A7 Current/High-Resolution Oscillator PCA contFigure 7-7. A7 Current/High-Resolution Oscillator PCA cont Service Manual5700A/5720A Series Schematic Diagrams Figure 7-7. A7 Current/High-Resolution7-31 5700A-1021 4 ofService Manual Figure 7-8. A8 Switch Matrix PCA5700A/5720A Series 5700A-1622Schematic Diagrams Figure 7-8. A8 Swith Matrix PCA contFigure 7-8. A8 Switch Matrix PCA cont Service Manual5700A/5720A Series Schematic Diagrams Figure 7-8. A8 Swith Matrix PCA contFigure 7-8. A8 Switch Matrix PCA cont Service Manual5700A/5720A Series Schematic Diagrams Figure 7-8. A8 Swith Matrix PCA contService Manual 5700A/5720A SeriesFigure 7-9. A9 Ohms Cal PCA 5700A-1631Schematic Diagrams Figure 7-9. A9 Ohms Cal PCA cont5700A/5720A Series Service ManualFigure 7-9. A9 Ohms Cal PCA cont Schematic Diagrams Figure 7-9. A9 Ohms Cal PCA cont5700A/5720A Series Service ManualFigure 7-9. A9 Ohms Cal PCA cont Schematic Diagrams Figure 7-10. A10 Ohms Main PCA5700A/5720A Series Service ManualFigure 7-10. A10 Ohms Main PCA cont Schematic Diagrams Figure 7-10. A10 Ohms Main PCA5700A/5720A Series Service ManualFigure 7-10. A10 Ohms Main PCA cont Schematic Diagrams Figure 7-10. A10 Ohms Main PCAService Manual 5700A/5720A SeriesFigure 7-11. A11 DAC PCA 5700A-7640Schematic Diagrams Figure 7-11. A11 DAC PCA contService Manual 5700A/5720A SeriesFigure 7-11. A11 DAC PCA cont 22uFSchematic Diagrams Figure 7-11. A11 DAC PCA contService Manual 5700A/5720A Series7-52 Figure 7-11. A11 DAC PCA contSchematic Diagrams Figure 7-11. A11 DAC PCA cont5700A/5720A Series Service ManualFigure 7-11. A11 DAC PCA cont Schematic Diagrams Figure 7-12. A11A1 DAC Filter SIP PCA5700A/5720A Series Service ManualFigure 7-13. A1142 DAC Buffered Reference SIP PCA 5700A-7650 Schematic DiagramsFigure 7-14. A12 Oscillator Control PCA cont Service Manual 4. C5 AND C55 ARE NOT INSTALLED5700A/5720A Series Figure 7-14. A12 Oscillator Control PCA contSchematic Diagrams Figure 7-14. A12 Oscillator Control PCA contService Manual 5700A/5720A Series7-60 Figure 7-14. A12 Oscillator Control PCA contSchematic Diagrams Figure 7-15. A13 Oscillator Output PCA5700A/5720A Series Service ManualFigure 7-15. A13 Oscillator Output PCA cont Schematic Diagrams Figure 7-15. A13 Oscillator Output PCA cont5700A/5720A Series Service ManualFigure 7-15. A13 Oscillator Output PCA cont Schematic Diagrams Figure 7-16. A13A1 Oscillator Wideband SMD PCA5700A/5720A Series Service ManualFigure 7-16. A13A1 Oscillator Wideband SMD PCA cont Schematic Diagrams Figure 7-17. A14 High Voltage Control PCAService Manual 5700A/5720A Series7-68 Figure 7-17. A14 High Voltage Control PCA contSchematic Diagrams Figure 7-17. A14 High Voltage Control PCA cont5700A/5720A Series Service ManualFigure 7-17. A14 High Voltage Control PCA cont Schematic Diagrams Figure 7-17. A14 High Voltage Control PCA contService Manual 5700A/5720A SeriesFigure 7-18. A15 High Voltage/ High Current PCA 5700A-1660Schematic Diagrams Figure 7-18. A15 High Voltage/High Current PCA cont5700A/5720A Series Service ManualFigure 7-18. A15 High Voltage/High Current PCA cont Figure 7-19. A16 Power Amplifier PCA Schematic Diagrams5700A-7670 Service Manual Figure 7-19. A16 Power Amplifier PCA cont4. NOT INSTALLED 5700A/5720A SeriesFigure 7-19. A16 Power Amplifier PCA cont Schematic Diagrams10 M 2N4044 Service Manual Figure 7-19. A16 Power Amplifier PCA cont5700A/5720A Series 7-78Schematic Diagrams Figure 7-20. A16A1 Power Amplifier Digitial Control SIP PCAService Manual Figure 7-20. A161A1 Power Amplifier Digital5700A/5720A Series 7-805700A-1680 Schematic DiagramsFigure 7-21. A17 Regulator/Guard Crossing PCA 5700A/5720A Series Service ManualFigure 7-21. A17 Regulator/Guard Crossing PCA cont Schematic Diagrams Figure 7-21. A17 Regulator/Guard Crossing PCA contService Manual 5700A/5720A Series7-84 5700A-7690Schematic Diagrams Figure 7-22. A18 Filter/PA Supply PCA cont5700A/5720A Series Service ManualFigure 7-22. A18 Filter/PA Supply PCA cont Schematic Diagrams Figure 7-23. A19 Digital Power Supply PCAFigure 7-23. A19 Digital Power Supply PCA cont Service Manual5700A/5720A Series Schematic Diagrams Figure 7-24. A20 CPU PCA5700A/5720A Series Service ManualFigure 7-24. A20 CPU PCA cont Schematic Diagrams Figure 7-24. A20 CPU PCA cont5700A/5720A Series Service ManualFigure 7-24. A20 CPU PCA cont Schematic Diagrams Figure 7-24. A20 CPU PCA cont5700A/5720A Series Service ManualFigure 7-24. A20 CPU PCA cont Schematic Diagrams Figure 7-25. A21 Real Panel PCA5700A/5720A Series Service ManualFigure 7-25. A21 Rear Panel PCA cont Schematic Diagrams Figure 7-25. A21 Rear Panel PCA cont5700A/5720A Series Service ManualFigure 7-25. A21 Rear Panel PCA cont Schematic Diagrams Figure 7-25. A21 Rear Panel PCA cont5700A/5720A Series Service ManualFigure 7-25. A21 Rear Panel PCA cont Schematic Diagrams Figure 7-26. Hybrids5700A/5720A Series Service ManualFigure 7-26. Hybrids cont Schematic Diagrams Figure 7-26. Hybrids cont5700A/5720A Series Service ManualFigure 7-26. Hybrids cont Schematic Diagrams Figure 7-26. Hybrids contService Manual 5700A/5720A Series

Fluke 5720A service manual

Models: 5720A