Service Manual
5700A/5720A Series
Multi-Function Calibrator
5/94
LIMITED WARRANTY & LIMITATION OF LIABILITY
Interference Information
Declaration of the Manufacturer or Importer
Bescheinigung des Herstellers/Importeurs
Page
Terms in this Manual
OPERATOR SAFETY SUMMARY
HIGH VOLTAGE
LETHAL VOLTAGE
Use the Proper Fuse
Symbols Marked on Equipment
Power Source
Use the Proper Power Cord
Use Care When Servicing With Power On
SERVICING SAFETY SUMMARY
FOR QUALIFIED SERVICE PERSONNEL ONLY
Do Not Service Alone
Never Accept Ordinary and General Tests for Death
FIRST AID FOR ELECTRIC SHOCK
Free the Victim From the Live Conductor
Get Help
Page
Table of Contents
Introduction and Specifications
Title
Theory of Operation
5700A/5720A Series
±PA Supplies Digital Control
How the DAC is Used in Calibration
5700A/5720A Series
Calibration and Verification
Ohms Cal Assembly A9
Calibration Procedure
Using Remote Commands Reserved for Servicing
Maintenance
Troubleshooting
Rear Panel Assembly Access
List of Replaceable Parts
Schematic Diagrams
Service Manual
5700A/5720A Series
viii
List of Tables
Title
Page
5700A/5720A Series
Unregulated Supplies from the Filter Assembly
A13A1 Oscillator Wideband SMD PCA
A16A1 Power Amplifier Digital Control SIP PCA
Test Record for Flatness Check of the AC 2 mV Range
A11A2 DAC Buffered Reference SIP PCA
5700A/5720A Series
Service Manual
List of Figures
Title
Page
5700A/5720A Series
Ohms Main Assembly Simplified Schematic
A15 High Voltage/High Current PCA
Power Amplifier with Calibrator Set to 22V at 1 kHz
A16A1 Power Amplifier Digital Control SIP PCA
A13A1 Oscillator Wideband SMD PCA
5700A/5720A Series
Service Manual
Introduction and Specifications
Chapter
Title
5700A/5720A Series II Calibrator
Service Manual
1-1. Introduction
1-4. How to Use this Manual
1-2. Contacting Fluke
1-3. About this Manual
∙ 5700A/5720A Series II Operator Reference Guide PN
1-5. Additional Instruction Manuals
1-6. Wideband AC Voltage Module Option 5700A-03
∙ 5700A/5720A Series II Getting Started Manual PN
1-9. Support Equipment and Services
1-7. Auxiliary Amplifiers
1-8. 5725A Amplifier
1-13. Wideband AC Module Option 5700A-03 Calibration Support
1-11. 732B-200 Direct Volt Maintenance Program U.S.A. Only
1-10. 732B Direct Voltage Reference Standard
1-12. 742A Series Resistance Standards
1-15. The Components of the 5700A/5720A Series II Calibrator
1-14. Service Centers
Calibrating the 5700A/5720A Series II Calibrator
1-16. Calibrating the 5700A/5720A Series II Calibrator
1-18. Establishing Traceability
1-17. The Calibration Process
1-20. Calibration Check
1-21. Developing a Performance History
1-19. Calibration Reports
1-22. Range Calibration
1-24. Specifications
1-25. Specification Confidence Levels
1-26. Using Absolute and Relative Uncertainty Specifications
Specifications
1-27. Using Secondary Performance Specifications
5720A
1-28. DC Voltage Specifications
Service Manual
5700A/5720A Series II Calibrator
5700A
Introduction and Specifications
DC Voltage Specifications
5700A
Service Manual
5700A/5720A Series II Calibrator
Overshoot 5 % Common mode rejection 140 dB, DC to 400 Hz
5720A
1-29. AC Voltage Specifications
Introduction and Specifications
AC Voltage Specifications
95 % Confidence Level
Service Manual
5700A/5720A Series II Calibrator
5720A
99 % Conf idence Level
Introduction and Specifications
AC Voltage Specifications
5700A
95% Confidence Level
Service Manual
5700A/5720A Series II Calibrator
5700A
0-10 C and
Introduction and Specifications
AC Voltage Specifications
± ppm output + μV
Figure 1-2. Volt-Hertz Capability
Service Manual
5700A/5720A Series II Calibrator
5725A Amplifier
5720A
1-30. Resistance Specifications
Introduction and Specifications
Resistance Specifications
5700A
Service Manual
5700A/5720A Series II Calibrator
5700A
Characterized
Introduction and Specifications
Resistance Specifications
±1 C Note
I IL
Service Manual
5700A/5720A Series II Calibrator
Table 1-13. Current Derating Factors
5720A 99%
1-31. DC Current Specifications
Introduction and Specifications
DC Current Specifications
5700A
Service Manual
5700A/5720A Series II Calibrator
5700A
Introduction and Specifications
DC Current Specifications
Overshoot 5 %
5720A 99%
1-32. AC Current Specifications
Service Manual
5700A/5720A Series II Calibrator
95 % Confidence Level
Introduction and Specifications
AC Current Specifications
5720A 95%
99 % Confidence Level
Service Manual
5700A/5720A Series II Calibrator
5700A
95 % Confidence Level
Introduction and Specifications
AC Current Specifications
5700A
± ppm output + nA
Service Manual
5700A/5720A Series II Calibrator
Temperature Coefficient Note
Table 1-22. Wideband AC Voltage Option 5700-03 Specifications
1-33. Wideband AC Voltage Option 5700-03 Specifications
Introduction and Specifications
Wideband AC Voltage Option 5700-03 Specifications
Guard isolation 20
1-34. General Specifications
Service Manual
5700A/5720A Series II Calibrator
5220A AC Current, 180-day specifications
1-35. Auxiliary Amplifier Specifications
Introduction and Specifications
Auxiliary Amplifier Specifications
5700A/5720A Series II Calibrator
Service Manual
Theory of Operation
Chapter
Title
2-36
Theory of Operation
2-155
2-4. Hybrid Reference Amplifiers
2-1. Introduction
2-2. Calibrator Overview
2-3. Internal References
2-7. Digital Section Overview
2-8. Analog Section Overview
2-6. Digital-to-Analog Converter DAC
ahp003f.eps
Figure 2-1. Digital Section Block Diagram
Theory of Operation
Analog Section Overview
2-10. DC Voltage Functional Description
2-9. Functional Description Presented by Output Function
ahp33f.eps
Figure 2-2. Analog Section Block Diagram, Part
Theory of Operation
Theory of Operation
Service Manual
Figure 2-3. Analog Section Block Diagram, Part
5700/5720A Series II Calibrator
2-11. AC Voltage Functional Description
2-12. Wideband AC V Functional Description Option
2-13. DC Current Functional Description
2-14. AC Current Functional Description
2-17. Digital Motherboard Assembly A4
2-16. System Interconnect Detailed Circuit Description
2-15. Ohms Functional Description
2-19. Analog Motherboard Assembly A3
2-18. Transformer Assembly A22
ahp35f.eps
Theory of Operation
Functional Description Presented by 0utput Function
Figure 2-4. System Interconnections
Service Manual
5700/5720A Series II Calibrator
Figure 2-4. System Interconnections cont
Table 2-1. Analog Motherboard Connectors
Motherboard Connector
Connected to Assembly
2-23. Digital Section Detailed Circuit Description
2-21. Rear Panel Assembly A21
2-22. Filter PA Supply Assembly A18
2-24. Digital Power Supply Assembly A19
Digital Section Detailed Circuit Description
2-25. +5V Power Supply
2-26. ±12V Power Supplies
2-27. +35V Power Supply
2-29. +35V and +75V Shut-Down Circuit
2-28. +75V Power Supply
2-30. CPU Central Processing Unit Assembly A20
2-31. Power-Up and Reset Circuit
2-32. Clock Generation
Figure 2-5. CPU Assembly Block Diagram
5700A/5720A Series II Calibrator
ahp004f.eps
Table 2-3. CPU Acronym Glossary
Signal Name
Theory of Operation
Digital Section Detailed Circuit Description
Chip Select
2-33. Watchdog Timer
2-34. Address Decoding and DTACK Data Acknowledge
Table 2-4. CPU Memory Map
2-38. ROM Read-Only Memory
2-37. RAM Random-Access Memory
2-35. Interrupt Controller
2-36. Glue Logic
2-39. Electrically-Erasable Programmable Read-Only Memory EEPROM
2-40. DUART Dual Universal Asynchronous Receiver/transmitter Circuit
2-41. Clock/Calendar Circuit
2-45. Fan Monitor
2-42. Clock Filter Circuit
2-43. CPU to Rear Panel Interface
2-44. CPU to Front Panel Interface
2-49. Decoding and Timing Circuitry
2-46. Front Panel Assembly A2
2-47. Clock Regeneration Circuitry
2-48. Refresh Failure Detect Circuitry
êêêêêêê
2-50. Control Display Circuitry
2-51. Output Display Circuitry
2-53. Knob Encoder Circuitry
2-52. Keyboard Scanner Circuitry
2-54. Led Circuitry
2-55. Keyboard Assembly A1
2-57. Filter/PA Supply A18, Low-voltage Filter/Regulator Section
2-56. Analog Section Detailed Circuit Description
2-61. Triac Circuit
2-58. Unregulated OSC Supplies
2-59. Unregulated LH Supplies
2-60. Unregulated S Supplies
2-65. Filter/PA Supply A18, Power Amplifier Output Supply Section
2-64. FR2 Supplies
2-66. ±PA Supplies Digital Control
Figure 2-6. Power Amplifier Output Supply Simplified Schematic
5700A/5720A Series II Calibrator
ahp005f.eps
∙ PA CT is the center tap
2-67. ±250V and ±500V Supplies
2-68. +PA and -PA Supplies
2-69. ±PA Supply Current Limit
2-70. Regulator/Guard Crossing Assembly A17
2-71. Voltage Regulator Circuitry
2-72. Regulated OSC Supplies
+15V +5.975V +5.1V +44.15V +17.000V -17.000V +30.96V +30.96V
2-73. Regulated LH Supplies
2-74. Regulated S Supplies
+15 OSC -15 OSC +5RLH +5LH -5LH +44S -44S +17S -17S 15S +30FR1 +30FR2
2-76. FR2 Supply
2-75. FR1 Supply
2-79. Inguard Memory Configuration
2-77. Guarded Digital Control Circuitry
2-78. Inguard CPU Memory Map
2-83. Break Detection
2-81. Inguard Watchdog Timer
2-82. Power-Up and Reset Circuitry
2-80. Inguard Clock Circuit
2-87. Switch Matrix Assembly A8
2-85. Interface to Guarded Digital Bus
2-86. Inguard CPU Interrupts
2-88. Switch Matrix Digital Control
Figure 2-7. Switch Matrix Assembly Simplified Schematic
Theory of Operation
System Interconnection Detailed Circuit Description
3. Apply 7V to the relay coils by setting PC5 high
2-89. Switch Matrix Operation 11V DC and 22V DC Ranges
ahp006f.eps
Figure 2-8. Switch Matrix Configuration for 11V DC and 22V DC Ranges
Theory of Operation
Analog Section Detailed Circuit Description
2-91. Switch Matrix Operation 220V AC and DC Ranges
2-90. Switch Matrix Operation 2.2V AC and 22V AC Ranges
ahp007f.eps
Figure 2-9. Switch Matrix Configuration for 2.2V and 22V AC Ranges
Theory of Operation
Analog Section Detailed Circuit Description
Figure 2-10. Switch Matrix Configuration for 220V DC and AC Ranges
5700A/5720A Series II Calibrator
ahp008f.eps
2-92. Switch Matrix Operation 2.2V DC Range
Figure 2-11. Switch Matrix Configuration for 2.2V DC Range
5700A/5720A Series II Calibrator
ahp009f.eps
2-94. Switch Matrix Operation 220 mV DC Range
2-93. Calibration of the 2.2V Range
To calibrate the offset
5700A/5720A Series II Calibrator
Figure 2-12. Calibration of the 2.2V DC Range
ahp010f.eps
ahp011f.eps
Figure 2-13. Switch Matrix Configuration for 220 mV DC Range
Theory of Operation
Analog Section Detailed Circuit Description
2-95. Switch Matrix Operation 220 mV AC Range
2-96. Switch Matrix Operation 2.2 mV and 22 mV AC Ranges
2-97. Calibration of the mV Ranges
ahp012f.eps
Theory of Operation
Analog Section Detailed Circuit Description
Figure 2-14. V AC, 2.2 mV AC, and 22 mV AC Range
5700A/5720A Series II Calibrator
Figure 2-15. Divider Calibration
ahp013f.eps
2-98. Internal CAL Zero Amplifier
5700A/5720A Series II Calibrator
Figure 2-16. Divider Gain Calibration
ahp014f.eps
2-99. Switch Matrix 5725A Amplifier Interface
2-100. DAC Assembly A11
2-101. Basic DAC Theory of Operation
0.1 x 13V + 0.5 x 0.78 mV =
ahp015f.eps
Figure 2-17. DAC Assembly Simplified Schematic
Theory of Operation
Analog Section Detailed Circuit Description
2-102. DAC Assembly Digital Control
2-103. DAC Assembly Reference Circuitry
Programmable Peripheral Interface IC U31 is the heart of this circuit
2-104. Duty-Cycle Control Circuit
2-105. DAC Filter Circuit
2-106. DAC Output Stage
REFCOM
2-108. Linearity Control Circuit
2-107. Sense Current Cancellation Circuit
2-110. DAC Output Switching
2-109. Negative Offset Circuit
2-111. DAC Buffered Reference Sip
2-112. Calibration Hardware
2-113. ADC Amplifier
2-114. ADC Input Selection
∙ ADC reference voltage ∙ ADC dac ∙ ADC comparator/amplifier
2-115. ADC Circuit
ahp016f.eps
Theory of Operation
Analog Section Detailed Circuit Description
Figure 2-18. ADC Circuit Measurement Functions
2-117. DAC Assembly Calibration
2-116. How the DAC is Used in Calibration
INPUT
2-118. Oscillator Section Overview
2-119. Oscillator Control Assembly A12
2-121. Oscillator Input Switching
2-122. Sense Current Cancellation
2-120. Oscillator Control Digital Control
2-126. Analog Amplitude Control Loop
2-124. Error Integrator
2-123. Averaging Converter
2-125. Three-Pole Filter
5700A/5720A Series II Calibrator
Figure 2-19. Oscillator Control Analog Control Loop
ahp017f.eps
2-127. AC/DC Thermal Transfer Circuit
5700A/5720A Series II Calibrator
Figure 2-20. AC/DC Thermal Transfer Circuit
ahp018f.eps
2-128. Oscillator Calibration
2-129. AC/DC Frequency Response Characterization
2-130. Oscillator Output Assembly A13
ahp019f.eps
Theory of Operation
Analog Section Detailed Circuit Description
Figure 2-21. Quadrature RC Oscillator Circuit
2-132. Quadrature RC Oscillator
2-131. Oscillator Output Digital Control
2-133. Oscillator Amplitude Control
2-134. Phase−locked Loop
2-135. 2.2V and 22V Range Output Amplifier
2-136. Oscillator Wideband Smd Assembly A13A1
2-138. Phase Shifter
2-139. Power Amplifier Assembly A16
2-137. Output Stage
1. Write the proper data for these relays to port A of the 82C55 U11
2-140. Power Amplifier Digital Control Sip Assembly A16A1
∙ ±185V ∙ ±365V
2-141. PA Common Circuitry
2-142. +PA and -PA Supplies
2-143. PA Input Stage
2-145. PA Output Stage
2-144. PA Mid Stage
2-146. PA Sense Current Cancellation Circuitry
2-147. PA in Standby
2-148. PA Operation 220V DC Range
Figure 2-22. Power Amplifier Simplified Schematic
5700A/5720A Series II Calibrator
ahp020f.eps
2-152. High Voltage DC 1100V Range and Current 2.2A Range
2-150. High Voltage Assembly Support Mode
2-149. PA Operation 220V AC Range
2-151. High Voltage AC 1100V Range
2-154. PA Calibration
2-153. 220V DC Internal Calibration Network
ahp021f.eps
Figure 2-23. Power Amplifier DC Calibration Network
Theory of Operation
Analog Section Detailed Circuit Description
Power 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
f2-24.eps
Figure 2-24. Power Amplifier Calibration AC Attenuator
Theory of Operation
Analog Section Detailed Circuit Description
2-156. 1100V AC Range
2-155. High Voltage Assemblies A14 and A15
ahp022f.eps
Figure 2-25. High Voltage/High Current Assembly 1100V AC Range
Theory of Operation
Analog Section Detailed Circuit Description
2-158. HVDC Power Supply Filter Circuit
2-157. 1100V DC Range
2-159. HV DC Output Series Pass and Current Limit Circuit
ahp023f.eps
Figure 2-26. High Voltage/High Current Assembly 1100V DC Range
Theory of Operation
Analog Section Detailed Circuit Description
2-161. 2.2A Range
2-160. DC HV Amplifier/AC Sense Buffer
ahp024f.eps
Figure 2-27. High Voltage/High Current Assembly 2.2A AC and DC Ranges
Theory of Operation
Analog Section Detailed Circuit Description
2-162. 2.2A Power Supply Filter Circuit
2-163. High Voltage Digital Control
2-165. Calibration of the AC Function
2-164. High Voltage Calibration
ahp025f.eps
Figure 2-28. High Voltage/High Current Assembly Calibration
Theory of Operation
Analog Section Detailed Circuit Description
2-167. High Voltage Magnitude Control
2-166. Calibration of the Current Function
Theory of Operation
Analog Section Detailed Circuit Description
ahp026f.eps
2-168. Ohms Overview
2-170. Selection of Resistance Values
2-169. Ohms Main Assembly A10
Figure 2-30. Ohms Assemblies Simplified Schematic
5700/5720A Series II Calibrator
ahp38f.eps
ahp39f.eps
Figure 2-31. Ohms Main Assembly Simplified Schematic
Theory of Operation
Analog Selection Detailed Circuit Description
2-174. Ohms CAL Digital Control
2-171. Ohms Main Assembly Support of Current Function Calibration
2-173. Ohms Cal Assembly A9
2-172. Ohms Digital Control
2-175. 1, 1.9, and Short Resistance
2-176. Two-Wire Ohmmeter Compensation Circuit
Figure 2-32. Two-Wire Lead Drop Compensation Circuit
5700A/5720A Series II Calibrator
ahp027f.eps
2-180. Ohms Calibration
2-177. Two-Wire Compensation Power Supplies
2-178. High Side Cancellation
2-179. Low Side Cancellation
5700A/5720A Series II Calibrator
Figure 2-33. Calibration to an External 10 kΩ Standard
ahp028f.eps
2-181. Calibrating to the External 10 KW Standard
2-182. Calibrating 10 KW and 19 KW
2-183. Calibrating 100 KW
2-184. 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
5700A/5720A Series II Calibrator
Figure 2-34. Ratio Calibration, 10 Ω From 100 Ω
ahp029f.eps
2-185. Calibrating to the External 1W Standard
2-186. Current/High Resolution Oscillator Assembly Overview A7
2-187. Current Section
2-188. Current Input Switching
ahp030f.eps
Figure 2-35. Current Output Simplified Schematic
Theory of Operation
Analog Section Detailed Circuit Description
2-189. Complementary Drive Circuit
2-190. Transconductance Amplifiers
2-191. Shunt Resistors
Table 2-15. Relay Settings for Current Range Selection Range
2-193. Current Output Switching
2-192. Feedback Loop
2-194. Generation of the 2.2A Range
2-197. Current/Compliance Voltage Monitor
2-198. Current Assembly Calibration
2-195. Current Guard Buffer
2-196. Compliance Limiter
ahp031f.eps
Figure 2-36. Current Assembly Calibration
Theory of Operation
Analog Section Detailed Circuit Description
∙ 10.00 Hz to 119.99 Hz ∙ 0.1200 kHz to 1.1999 kHz
2-199. High-Resolution Oscillator Section
2-200. Reference Frequency Amp/Divider
2-201. Phase-Locked Loop
2-203. Hi-Res Output Switching
2-204. Rear Panel Assembly A21
2-202. 5-500k Output Divider
2-205. Rear Panel Power Supplies
2-206. Rear Panel Address Mapping
∙ RPDUARTCS*, D00000-D0001F ∙ RPIEEECS*, D00020-D0002F
2-207. Clock Regeneration Circuit
2-208. IEEE-488 GPIB Interface
2-209. RS-232C Interface
2-212. Phase Lock In/Variable Phase out
2-210. Auxiliary Amplifier Interface
2-211. 5725A Interface
2-213. Rear Panel Relay Control
2-214. Rear Panel CPU Interface
Port A PA0-PA7 provides the input lines for relay driver U16
2-218. Wideband Oscillator Digital Control
2-216. Wideband Oscillator Assembly A6
2-217. Wideband Oscillator Power Supplies
2-215. Wideband AC Module Option
2-219. Phase-Locked Loop and Divider Circuit
2-221. Wideband Oscillator Filters
2-220. Amplitude Control Amplifier and X10 Wideband Amplifier
Figure 2-37 is a simplified schematic for the Wideband Output assembly
2-222. Wideband Output Assembly A5
ahp032f.eps
Figure 2-37. Wideband Output Assembly Simplified Schematic
Theory of Operation
Analog Section Detailed Circuit Description
2-223. Wideband Output Power Amplifier Circuit
2-224. Wideband Output Attenuators
2-225. Wideband Output RMS Sensor and Amplitude Control Circuit
2-226. Wideband Output Overload Control Circuit
2-228. Wideband Output Calibration
2-227. Wideband Output Digital Control
connector is connected back to the OUTPUT HI SENSE and OUTPUT LO SENSE binding posts
5700A/5720A Series II Calibrator
Service Manual
Calibration and Verification
Chapter
Title
3-30
Calibration and Verification
3-1. Introduction
3-2. Accessing the Fuse
Cleaning the Air Filter
3-3. Cleaning the Air Filter
3-4. Cleaning the Exterior
3-5. Calibration
3-6. Calibrating the 5700A/5720A Series II to External Standards
3-8. When to Adjust the Calibrator’s Uncertainty Specifications
3-7. Calibration Requirements
Calibrating the 5700A/5720A Series II to External Standards
3-9. Calibration Procedure
Calibrating the 5700A/5720A Series II to External Standards
4. Enter the ambient temperature then press E. The display shows
5. Connect the 732B to the calibrator as shown in Figure
Calibration and Verification
IF3-5.EPS
IF3-6.EPS
IF3-7.EPS
After a few seconds, the following display appears
F7-4.EPS
RESISTANCE STANDARD
CALIBRATOR
Figure 3-4. 742A-1 and 742A-10k External Calibration Connections
16. 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
IF057.EPS
PREV MENU
Calibrating the Wideband AC Module Option 5700A-03
3-11. Calibrating the Wideband AC Module Option 5700A-03
2. 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
Figure 3-7. Overview of Verification Tests
3-13. Full Verification
3-14. Required Equipment for All Tests
3-15. Warm-up Procedure for All Verification Tests
Description
5700A/5720A Series II Calibrator
Table 3-2. List of Required Equipment for Main Output
Equipment
3-16. 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
3-22. Output Level Tests For AC V Ranges
3-21. AC Voltage Frequency Accuracy Test
Use Table 3-23 5720A or Table 3-24 5700A for the test records
Calibration and Verification
3-23. AC Current Test, 22 mA to 11A Ranges
Table 3-8. 5790A Adjustment Counts
5790A Adjustment Counts
1. Connect the equipment as shown in Figure 3-12A use the 2A shunt
Calibration and Verification
Figure 3-12. Alternating Current Test Setup
A. Alternating Current Test Setup, 22 mA to 2A Using 5790A Input
B. Alternating Current Test Setup, 10A Using 5790A Input
Pomona Cable 1362-A-18
3-24. AC Current Test, 2 mA and 200 μA Ranges
Hi Output Lo
Metal Film Resistor Mounted on Dual Banana Plug 200
3-25. Rationale for Using Metal-Film Resistors to Measure AC Current
Figure 3-14. Metal Film Resistor Equivalent Circuit
Figure 3-15. Metal Film Resistor in Test Circuit
3-27. Wideband AC Voltage Module Output Verification
3-26. Wideband Frequency Accuracy Test
Wideband Output Accuracy at 1 kHz Test
3-28. Wideband Output Accuracy at 1 kHz Test
3-29. Wideband Output Flatness Test
3-30. Wideband Flatness Calibration Procedure
3-32. DC Voltage Load Regulation Test
3-31. Optional Tests
3-33. DC Voltage Linearity Test
3-34. DC Voltage Output Noise 10 Hz to 10 kHz Test
Optional Tests
2. Set the Oscilloscope Differential Amplifier controls as shown below
WWarning
3-37. Wideband Distortion Testing
3-35. DC Voltage Output Noise 0.1 to 10 Hz Test
3-36. AC Voltage Distortion Test
3-38. AC Voltage Overshoot Test
3-39. Minimum Use Requirements
Table 3-15. Minimum Use Requirements
Minimum Use Specifications
Calibration and Verification
Minimum Use Requirements
3-40. Determining Test Limits for Other Calibration Intervals
130 + 1000000*0.000000040/0.002=130 ppm + 20 ppm = 150 ppm
Measured 1Ω Std Voltage
DMM Error
1Ω Std Res Value
1Ω Std Voltage
DMM Std Res Rdg
DMM Error
Table 3-16. 5720A Resistance Test Record cont
Std Res Value
1Ω Std Voltage
DMM Error
Table 3-17. 5700A Resistance Test Record
1Ω Std Res Value
DMM Std Res Rdg
DMM Error
Table 3-17. 5700A Resistance Test Record cont Max
Std Res Value
5720A Range
Divider Setting
5700A/5720A Series II Calibrator
Table 3-18. DC Voltage Test Record for 5720A
Table 3-19. DC Voltage Test Record for 5700A
Divider Setting
Calibration and Verification
Determining Test Limits for Other Calibration Intervals
5700A/5720A Series II Calibrator
UUT Error
Setting
Error A+B
Calibration and Verification
UUT Error
Error A+B
Setting
Output
Error Display Reading
5700A/5720A Series II Calibrator
Table 3-23. 5720A AC Voltage Output Test Record
Output Level
Error
Calibration and Verification
Determining Test Limits for Other Calibration Intervals
Output
Error Display Reading
5700A/5720A Series II Calibrator
Table 3-24. 5700A AC Voltage Output Test Record
Determining Test Limits for Other Calibration Intervals
Error
Error Display Reading
Calibration and Verification
Table 3-26. 5720A AC Current 20 mA to 10A Accuracy Test Record
UUT Error Display
Calculated Error
5700A/5720A Series II Calibrator
Determining Test Limits for Other Calibration Intervals
UUT Error Display
Calculated Error
Calibration and Verification
Table 3-28. 5720A AC Current 2 mA and 200 μA Accuracy Test Record
Error
Error
5700A/5720A Series II Calibrator
Frequency Hz
Calibration and Verification
Determining Test Limits for Other Calibration Intervals
Table 3-30. Wideband Frequency Accuracy Test Record
Table 3-31. Wideband Accuracy at 1 kHz Test Record
Measured Error
Measured Flatness Error
5700A/5720A Series II Calibrator
Table 3-32. Wideband Flatness Test Record cont
Measured Flatness Error
Calibration and Verification
Determining Test Limits for Other Calibration Intervals
Error Sum ppm
Table 3-33. Wideband Absolute Error 10 Hz to 500 kHz
1 kHz Absolute Error ppm
Flatness Error ppm
Determining Test Limits for Other Calibration Intervals
Div. Setting
Kelvin-Varley Setting
Calibration and Verification
5700A/5720A Series II Output
UUT Error Display Reading
5700A/5720A Series II Calibrator
Table 3-37. AC V Distortion Test Summary
A Message From
static awareness
Fluke Corporation
5. USE STATIC SHIELDING CONTAINERS FOR HANDLING AND TRANSPORT
Maintenance
Chapter
Title
5700A/5720A Series II Calibrator
Service Manual
4-1. Introduction
4-2. Cleaning the Air Filter
4-9. Rear Panel Removal and Installation
4-3. General Cleaning
4-4. Cleaning PCA’s
4-5. Access Procedures
4-10. Rear Panel Assembly Access
4-12. Display Assembly Removal and Installation
4-11. Front Panel Removal and Installation
4-14. Analog Assembly Removal and Installation
4-13. Keyboard Assembly Removal and Installation
5700A/5720A Series II Calibrator
Figure 4-5. Analog and Digital Assemblies
FRONT PANEL
4-17. Hybrid Cover Removal
4-18. Front/Rear Binding Post Reconfiguration
4-15. Digital Assembly Removal and Installation
4-16. Power Transformer Removal and Installation
6. Install the Front Panel
4-19. Installing a Wideband AC Module Option
4-21. Replacing the Clock/Calendar Backup Battery
4-20. Clearing Ghost Images from the Control Display
ETIME
4-22. Using Remote Commands Reserved for Servicing
4-23. Using the ETIME Command
Using The Fatality? and Fatalclr Commands
Description
FATALITY?
FATLCLR?
Response
5700A/5720A Series II Calibrator
Service Manual
Troubleshooting
Chapter
Title
5700A/5720A Series II Calibrator
Service Manual
2703 A7 8255 Port C Fault
5-2. Interpreting Diagnostic Fault Codes
2701 A7 8255 Port a Fault
2702 A7 8255 Port B Fault
2709 A7 Current Magnitude Fault
2705 A7 Oven Regulation Fault
2706 A7 Current Compliance Fault
2707 A7 Hardware Initialization Fault
2714 A7 Hi-res Loop In 1kHz Range
2718 Fault In Setting Up AC For Diagnostics
2719 A7 8255 Was Reset
2713 A7 Hi-Res Loop In 100Hz Range
2804 A11 DAC Heaters Not Regulated
2801 A11 8255 Port a Wires
2802 A11 8255 Port B Data Bus
2803 A11 8254 Status Words
2811 A11 -11V DC Range Fault
2808 A11 ADC Amp Gain Error
2809 A11 DAC Monitoring Fault
2810 A11 +11V DC Range Fault
2818 Assembly A11 Missing
2815 A11 6.5V Reference Fault
2816 A11 13V Buffered Reference Fault
2817 A11 13V Reference Fault
3102 A14 8255 Port B Fault
2822 A8/A11 -11/22V DC Zero Estimate Fault
2826 A11 A/D Overload Fault
3101 A14 8255 Port a Fault
3106 A15 DC HV Amp Noise Fault
3103 A14 8255 Port C Fault
3104 A15 HV Oven Regulation Fault
3105 A15 HV I Oven Regulation Fault
3112 A15 HV +DC Ref/error Amplitude Fault
3109 A15 HV +DC Preamplifier Fault
3110 A15 HV +DC Series Pass & Current Fault
3111 A15 HV +DC High Voltage Output Fault
3119 A14/A15 HV +DC Current Abs. Value
3116 A15 HV -DC Reference/error Amp Fault
3117 A14/A15 HV +DC Current Error Amp Fault
3118 A14/A15 HV -DC Current Error Amp Fault
3124 A14/A15 HV AC 1kHz, Preamp Hi
3126 A14/A15 HV AC 100Hz, Preamp Fault
3122 A14/A15 HV AC 1kHz, Preamp Lo
3123 A14/A15 HV AC 1kHz, Preamp Mid
3131 A14/A15 HV AC 100Hz, Output Lo
3128 A14/A15 HV AC 1kHz, Output Lo
3129 A14/A15 HV AC 1kHz, Output Mid
3130 A14/A15 HV AC 1kHz, Output Hi
3134 Spare
3135 Assembly A14 Not Responding
3136 A14 8255 Was Reset
3137 A14/A15/A16 2.2A AC Range Mag. Fault
3141 A14/A15/A16 2.2A DC Range Dummy Load
3301 A9 8255 Port a Fault
3302 A9 8255 Port B Fault
3140 A14/A15/A16 2.2A AC Range Abs. Value
3306 A9 2V Source Fault
3303 A9 8255 Port C Fault
3304 A9 10V Source Fault
3305 A9 5V Source Fault
3312 A9/A10 Ohms 11 Divider Fault
3309 A9 Diff Amp Gain Fault
3310 A9 Diff Amp Noise Fault
3311 A9/A10 Ohms 101 Divider Fault
3318 A9/A10 190 Kilohm Ratio Fault
3315 A9/A10 10 Ohm Cal Diag Fault
3316 A9/A10 19 Ohm Cal Diag Fault
3317 A9/A10 100 Kilohm Ratio Fault
3326 A9/A10 19 Kilohm Check Fault
3321 A9/A10 10M Ohm Ratio Fault
3324 A9/A10 100M Ohm Ratio Fault
3325 A9/A10 10 Kilohm Check Fault
3330 A9/A10 190 Ohm Check Fault
3327 A9/A10 1 Kilohm Check Fault
3328 A9/A10 1.9 Kilohm Check Fault
3329 A9/A10 100 Ohm Check Fault
3337 A9/A10 Ohms Correction Factor Fault
3334 A9/A10 1.9 Ohm Check Fault
3335 A9/A10 Ohms Short Check Fault
3336 A9/A10 2 Wire Compensation Fault
3402 A12 8255 Port B
3341 A9/A10 190 Ohm Cal Diag Fault
3400 A12 8255 Control Word
3401 A12 8255 Port A
3412 A12 To A13 Interface Fault
3408 A13 Fixed Ampl. Osc Fault
3409 A13 Phase Lock Loop Fault
3410 A12/A13 22V Amp Bias Adj Error
3414 A12/A13 Nonlinear Control Loop 2vrng
3416 A12/A13 DAC 15th Bit Fault
3417 A12 DC Sensor Buffer Fault
3418 A12 Sensor Loop/SQ. Root Amp Fault
3426 A12 8255 Was Reset
3423 Assembly A12 Missing
3424 Assembly A13 Missing
3425 Assembly A12 Or A13 Not Responding
3504 Spare
3508 A16/A14 220V AC Range Output Fault
3510 A16 220V Amp Fault
3503 A16 8255 Port C
3513 Spare
3520 A16 PA Oven Regulation Fault
3511 A16 Incorrect PA Input
3512 Spare
3526 220V AC Initialization Fault
3521 Assembly A16 Is Not Responding
3524 A16 Power Amp Is Too Hot
3525 220V DC Initialization Fault
3602 +15S Supply Fault
3530 A16 8255 Was Reset
3600 +17S Supply Fault
3601 -17S Supply Fault
3608 +5rLH Supply Fault
3605 -42S Supply Fault
3606 LH Com Ground Fault
3607 -5lH Supply Fault
3614 OSC Com Ground Fault
3611 -PA Supply Fault
3612 +15 OSC Supply Fault
3613 -15 OSC Supply Fault
3703 A21 8255 Port C Fault
3615 S Com Ground Fault
3701 A21 8255 Port A Fault
3702 A21 8255 Port B Fault
3804 A8 Zero Amp Lo Noise Fault
3801 A8 8255 Port A Fault
3802 A8 8255 Port B Fault
3803 A8 8255 Port C Fault
3814 A8 220mV Divider Fault 3815 A8 22mV Divider Fault 3816 Spare
3809 A8 Zero Amp Hi Gain Fault
3810 A8 2.2V Amp Noise Fault 3811 A8 Zero Amp Offset
3812 A8 2.2V Gain Fault 3813 A8 220mV Offset Fault
3827 Assembly A8 Too Hot 3900 A5 8255 Control Word
3824 A8 Oven Regulation Fault
3825 Assembly A8 Not Responding
3826 A8 8255 Was Reset
3908 A5 Rms Sensor At 30MHz
3905 A6 Phase Lock Loop At 10MHz
3906 A6 Phase Lock Loop At 30MHz
3907 A5 Rms Sensor At 10MHz
3912 A5/A6 Output Offset At 10MHz
3914 A5 0DB Output Attenuation Fault
3915 A5 10DB Output Attenuation Fault
3911 A5/A6 Ampl. Control At 30MHz
3922 A5/A6 Wideband Initialization Fault
3916 A5 20DB Output Attenuation Fault
3917 A5 30DB Output Attenuation Fault
3918 A5 40DB Output Attenuation Fault
5-3. Component-level Troubleshooting
3923 A5 8255 Was Reset
5-4. Troubleshooting the Wideband Output Assembly A5
Component-level Troubleshooting
All measurements are referenced to SCOM TP16 or TP17 and all
5-5. Troubleshooting the Wideband Oscillator Assembly A6
F5-2.EPS
Figure 5-2. Waveform at TP1
F5-3.EPS
Figure 5-3. Waveform at TP15
F5-4.EPS
Figure 5-4. Waveform at Pins 14 and 15 of U1
F5-5.EPS
10 ms
5-7. Current Section
5-6. Troubleshooting the Current/Hi-Res Assembly A7
F5-6.EPS
Figure 5-6. Waveform at Pin 11 of K2
K10, K13
Figure 5-7. Waveform at Pin 6 of K2
1.2 Ω
K5C, K5D
F5-10.EPS
F5-9.EPS
F5-11.EPS
All measurements are referenced to LHCOM TP18
5-8. Hi-Res Oscillator Section
F5-13.EPS
Figure 5-13. Waveform at TP12
5-9. Troubleshooting the Switch Matrix Assembly A8
F5-15.EPS
Figure 5-15. Waveform at TP16
5-11. Two-wire Compensation Circuit
5-10. Troubleshooting the Ohms Cal Assembly A9
5-12. Troubleshooting the Ohms Main Assembly A10
5-13. Troubleshooting the DAC Assembly A11
Figure 5-18. Waveform at TP4, Calibrator Set to
Troubleshooting
Component-level Troubleshooting
Figure 5-17. Waveform at TP6
5700A/5720A Series II Calibrator
Figure 5-19. Waveform at TP4, Calibrator Set to
F5-19.EPS
F5-20.EPS
Figure 5-20. Waveform at TP7
F5-21.EPS
Figure 5-21. Waveform at TP5
5-14. Duty-cycle Control Circuit
F5-22.EPS
Figure 5-22. Waveform at Pin 10 of U6
Figure 5-24. Waveform at Pin 4 of U10
Troubleshooting
Component-level Troubleshooting
Figure 5-23. Waveform at Pin 6 of U13
U11, 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
F5-27.EPS
5700A/5720A Series II Calibrator
Figure 5-27. Waveform at Anode of CR4
Figure 5-28. Waveform at Pin 6 of U11
F5-29.EPS
Figure 5-29. DC Sense Buffer Waveform TP6
5-18. Troubleshooting the Oscillator Output Assembly A13
∙ TP5 positive voltage ∙ TP4 negative voltage ∙ TP3 positive voltage
5-19. Troubleshooting the High Voltage Control Assembly A14
F5-31.EPS
Figure 5-31. Waveform at TP3
5-20. 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
Figure 5-32. Waveform at Pin 18 of Hybrid H4
5-22. Troubleshooting the Power Amplifier Assembly A16
Figure 5-33. Power Amplifier with Calibrator Set to 22V at 1 kHz
Remove any jumpers left in place from step 8 before continuing
AC elsewhere in the Calibrator
5-23. 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
5700A/5720A Series II Calibrator
Service Manual
Chapter
List of Replaceable Parts
5700A/5720A Series II Calibrator
Service Manual
6-3. Manual Status Information
6-2. How to Obtain Parts
A * symbol indicates a device that may be damaged by static discharge
6-1. Introduction
Ref or Option No
6-5. Service Centers
Manual Status Information Assembly Name
5700A/5720A Series II Calibrator
Reference Description Designator
Service Centers
Table 6-1. Front Panel Final Assembly
List of Replaceable Parts
f6-1.eps
Figure 6-1. Front Panel Final Assembly
5700A/5720A Series II Calibrator
5700A-T&B
Service Centers
Table 6-1. Chassis Final Assembly
List of Replaceable Parts
1 of
Figure 6-2. Chassis Final Assembly
5700A/5720A Series II Calibrator
5700A T&B
f61a2.eps
Service Centers
Figure 6-2. Chassis Final Assembly cont
List of Replaceable Parts
5700A/5720A Series II Calibrator
Table 6-1. Rear Panel Final Assembly
f61b.eps
Service Centers
Figure 6-3. Rear Panel Final Assembly
List of Replaceable Parts
CR1-4 DT1, DT2 W1
ISOLATOR,OPTO,OPTICAL SWITCH,INFRARED
5700A/5720A Series II Calibrator
Table 6-2. A1 Keyboard PCA
Figure 6-4. A1 Keyboard PCA
Service Centers
List of Replaceable Parts
5700A-1603
5700A/5720A Series II Calibrator
Table 6-3. A2 Front Panel PCA
Designator
Service Centers
List of Replaceable Parts
Table 6-3. A2 Front Panel PCA cont
57001602.EPS
5700A/5720A Series II Calibrator
5700A-1602
Figure 6-5. A2 Front Panel PCA
Service Centers
List of Replaceable Parts
Table 6-4. A3 Analog Motherboard PCA
5700A/5720A Series II Calibrator
5700A-1601
Figure 6-6. A3 Analog Motherboard PCA
Service Centers
List of Replaceable Parts
Table 6-5. A4 Digital Motherboard PCA
57001605.EPS
5700A/5720A Series II Calibrator
5700A-1605
Figure 6-7. A4 Digital Motherboard PCA
Designator
Service Centers
List of Replaceable Parts
Table 6-6. A5 Wideband Output PCA, Option
Table 6-6. A5 Wideband Output PCA, Option -03 cont
5700A/5720A Series II Calibrator
R69,R70 R72,R73,R80-83 R74 R75 R78,R79,R86-89 R92-95 R96-99 R100 R101
Service Centers
List of Replaceable Parts
Table 6-6. A5 Wideband Output PCA, Option -03 cont
57001611.EPS
5700A/5720A Series II Calibrator
5700A-1611
Figure 6-8. A5 Wideband Output PCA, Option
Service Centers
List of Replaceable Parts
Table 6-7. A6 Wideband Ocillator PCA, Option
Designator
CONNECTOR ,CONN,DIN41612,TYPE C,RT ANG,64 PIN
5700A/5720A Series II Calibrator
Table 6-7. A6 Wideband Ocillator PCA, Option -03 cont
R58,R112,R212 R312,R412,R512 R59 R61 R62,R64,R65,R69 R63 R68 R71
Service Centers
List of Replaceable Parts
Table 6-7. A6 Wideband Ocillator PCA, Option -03 cont
57001610.EPS
5700A/5720A Series II Calibrator
5700A-1610
Figure 6-9. A6 Wideband Oscillator PCA, Option
Service Centers
List of Replaceable Parts
Table 6-8. A7 Current/High-Res Oscillator PCA
Table 6-8. A7 Current/High-Res Oscillator PCA cont
5700A/5720A Series II Calibrator
Designator
Service Centers
List of Replaceable Parts
Table 6-8. A7 Current/High-Res Oscillator PCA cont
57001621.EPS
5700A/5720A Series II Calibrator
5700A-1621
Figure 6-10. A7 Current/HIgh-Res Oscillator PCA
Reference Designator
Service Centers
Table 6-9. A8 Switch Matrix PCA
List of Replaceable Parts
5700A/5720A Series II Calibrator
Table 6-9. A8 Switch Matrix PCA cont
5700A-1622
Service Centers
Figure 6-11. A8 Switch Matrix PCA
List of Replaceable Parts
Table 6-10. A9 Ohms Cal PCA
5700A/5720A Series II Calibrator
Service Centers
List of Replaceable Parts
Table 6-10. A9 Ohms Cal PCA cont
57001631.EPS
5700A/5720A Series II Calibrator
5700A-1631
Figure 6-12. A9 Ohms Cal PCA
Service Centers
List of Replaceable Parts
Table 6-11. A10 Ohms Main PCA
57001630.EPS
5700A/5720A Series II Calibrator
5700A-1630
Figure 6-13. A10 Ohms Main PCA
C110,C111 CR1,CR3-6,CR8, CR12,CR13 CR2
Service Centers
List of Replaceable Parts
Table 6-12. A11 DAC PCA
Table 6-12. A11 DAC PCA cont
5700A/5720A Series II Calibrator
Service Centers
List of Replaceable Parts
Table 6-12. A11 DAC PCA cont
5700A/5720A Series II Calibrator
Table 6-12. A11 DAC PCA cont
VR13 VR18,VR22 VR25 VR26 VR27 VR28 VR29 VR33,VR34 X1 Z2 Z4 Z5 Z8 Z10
Figure 6-14. A11 DAC PCA
Service Centers
List of Replaceable Parts
5700A-1640
Table 6-13. A11A1 DAC Filter SIP PCA
5700A/5720A Series II Calibrator
Figure 6-15. A11A1 DAC Filter SIP PCA
Service Centers
List of Replaceable Parts
5700A-1643
Table 6-14. A11A2 DAC Buffered Reference SIP PCA
5700A/5720A Series II Calibrator
Figure 6-16. A11A2 DAC Buffered Reference SIP PCA
Service Centers
List of Replaceable Parts
5700A-1644
Table 6-15. A12 Oscillator Control PCA
5700A/5720A Series II Calibrator
Stock
Service Centers
List of Replaceable Parts
Table 6-15. A12 Oscillator Control PCA cont
5700A/5720A Series II Calibrator
Table 6-15. A12 Oscillator Control PCA cont
Designator
Figure 6-17. A12 Oscillator Control PCA
Service Centers
List of Replaceable Parts
5700A-1650
Table 6-16. A13 Oscillator Output PCA
5700A/5720A Series II Calibrator
Service Centers
List of Replaceable Parts
Table 6-16. A13 Oscillator Output PCA cont
Table 6-16. A13 Oscillator Output PCA cont
5700A/5720A Series II Calibrator
Figure 6-18. A13 Oscillator Output PCA
Service Centers
List of Replaceable Parts
5700A-1651
5700A/5720A Series II Calibrator
Table 6-17. A13A1 Oscillator Wideband SMD PCA
Designator
Figure 6-19. A13A1 Oscillator Wideband SMD PCA
Service Centers
List of Replaceable Parts
5700A-1652
Table 6-18. A14 High Voltage Control PCA
5700A/5720A Series II Calibrator
Service Centers
List of Replaceable Parts
Table 6-18. A14 High Voltage Control PCA cont
57001661.EPS
5700A/5720A Series II Calibrator
5700A-1661
Figure 6-20. A14 High Voltage Control PCA
Service Centers
List of Replaceable Parts
Table 6-19. A15 High Voltage/High Current PCA
Table 6-19. A15 High Voltage/High Current PCA cont
5700A/5720A Series II Calibrator
Figure 6-21. A15 High Voltage/High Current PCA
Service Centers
List of Replaceable Parts
5700A-1660
CR20,CR21,CR23
Table 6-20. A16 Power Amplifier PCA
5700A/5720A Series II Calibrator
Designator
R9,R10,R16,R33, R40,R50 R59, R115,R148 R149 R11,R12
Service Centers
Table 6-20. A16 Power Amplifier PCA cont
List of Replaceable Parts
5700A/5720A Series II Calibrator
Table 6-20. A16 Power Amplifier PCA cont
List of Replaceable Parts
Service Centers
Figure 6-22. A16 Power Amplifier PCA
5700A-7670
5700A/5720A Series II Calibrator
Table 6-21. A16A1 Power Amplifier Digital Control SIP PCA
5700A-1671
Service Centers
Figure 6-23. A16A1 Power Amplifier Digital Control SIP PCA
List of Replaceable Parts
Table 6-22. A17 Regulator/Guard Crossing PCA
5700A/5720A Series II Calibrator
Service Centers
List of Replaceable Parts
Table 6-22. A17 Regulator/Guard Crossing PCA cont
57001680.EPS
5700A/5720A Series II Calibrator
5700A-1680
Figure 6-24. A17 Regulator/Guard Crossing PCA
CR1,CR2,CR04, CR5 CR8,CR10, CR12,CR13
Service Centers
List of Replaceable Parts
Table 6-23. A18 Filter/PA Supply PCA
5700A/5720A Series II Calibrator
Table 6-23. A18 Filter/PA Supply PCA cont
Stock
VR211,VR217 VR227,VR231 VR212,VR216 VR226,VR232 VR214,VR230
Service Centers
List of Replaceable Parts
Table 6-23. A18 Filter/PA Supply PCA cont
57001690.EPS
5700A/5720A Series II Calibrator
5700A-7690
Figure 6-25. A18 Filter/PA Supply PCA
C24,C25 CR1-4,CR9-12 CR8,CR16, CR21- 24,CR29-34
Service Centers
Table 6-24. A19 Digital Power Supply PCA
List of Replaceable Parts
5700A/5720A Series II Calibrator
Table 6-24. A19 Digital Power Supply PCA cont
5700A-1604
Service Centers
Figure 6-26. A19 Digital Power Supply PCA
List of Replaceable Parts
Description
5700A/5720A Series II Calibrator
Table 6-25. A20 CPU PCA
Ref Des
Ref Des
Service Centers
List of Replaceable Parts
Table 6-26. A20 CPU PCA cont
5700A/5720A Series II Calibrator
Figure 6-27. A20 CPU PCA
57001606.EPS
Service Centers
List of Replaceable Parts
Table 6-27. A21 Rear Panel PCA
Table 6-27. A21 Rear Panel PCA cont
5700A/5720A Series II Calibrator
Figure 6-28. A21 Rear Panel PCA
Service Centers
List of Replaceable Parts
5700A-1609
5700A/5720A Series II Calibrator
Service Manual
Page
Schematic Diagrams
Chapter
Title
5700A/5720A Series II Calibrator
Service Manual
Figure 7-1. A1 Keyboard PCA
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-1. A1 Keyboard PCA cont
Figure 7-2. A2 Front Panel PCA
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-2. A2 Front Panel PCA cont
Figure 7-2. A2 Front Panel PCA cont
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-2. A2 Front Panel PCA cont
Figure 7-2. A2 Front Panel PCA cont
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-3. A3 Analog Motherboard PCA
Figure 7-23. A3 Analog Motherboard PCA cont
Schematic Diagrams
Figure 7-3. A3 Analog Motherboard PCA cont
5700A/5720A Series
Figure 7-3. A3 Analog Motherboard PCA cont
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-3. A3 Analog Motherboard PCA cont
Figure 7-4. A4 Digital Motherboard PCA
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-4. A4 Digital Motherboard PCA cont
Schematic Diagrams
Figure 7-4. A4 Digital Motherboard PCA cont
ahp46f.tif
Service Manual
5700A/5720A Series
Figure 7-4. A4 Digital Motherboard PCA cont
Schematic Diagrams
5700A-1611
Figure 7-5. A5 Wideband Output PCA Option
Service Manual
5700A/5720A Series
Figure 7-5. A5 Wideband Output PCA Option -03 cont
Figure 7-5. A5 Wideband Output PCA Option -03 cont
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-5. A5 Wideband Output PCA Option -03 cont
Figure 7-6. A6 Wideband Oscillator PCA Option
Schematic Diagrams
7-23
5700A-7610
Service Manual
5700A/5720A Series
Figure 7-6. A6 Wideband Output PCA Option
Figure 7-6. A6 Wideband Oscillator PCA Option -03 cont
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-6. A6 Wideband Oscillator PCA Option -03 cont
Schematic Diagrams
Figure 7-7. A7 Current/High-Resolution Oscillator PCA
5700A-1621
Service Manual
Figure 7-7. A7 Current/High-Resolution Oscillator PCA cont
5700A/5720A Series
Figure 7-7. A7 Current/High-Resolution Oscillator PCA cont
Schematic Diagrams
Service Manual
Figure 7-7. A7 Current/High-Resolution Oscillator PCA cont
5700A/5720A Series
5700A-1021 4 of
Schematic Diagrams
Figure 7-7. A7 Current/High-Resolution
7-31
5700A-1622
Service Manual
Figure 7-8. A8 Switch Matrix PCA
5700A/5720A Series
Figure 7-8. A8 Swith Matrix PCA cont
Schematic Diagrams
Service Manual
Figure 7-8. A8 Switch Matrix PCA cont
5700A/5720A Series
Figure 7-8. A8 Swith Matrix PCA cont
Schematic Diagrams
Service Manual
Figure 7-8. A8 Switch Matrix PCA cont
5700A/5720A Series
Figure 7-8. A8 Swith Matrix PCA cont
Schematic Diagrams
5700A-1631
Service Manual
5700A/5720A Series
Figure 7-9. A9 Ohms Cal PCA
Figure 7-9. A9 Ohms Cal PCA cont
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-9. A9 Ohms Cal PCA cont
Figure 7-9. A9 Ohms Cal PCA cont
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-9. A9 Ohms Cal PCA cont
Figure 7-10. A10 Ohms Main PCA
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-10. A10 Ohms Main PCA cont
Figure 7-10. A10 Ohms Main PCA
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-10. A10 Ohms Main PCA cont
Figure 7-10. A10 Ohms Main PCA
Schematic Diagrams
5700A-7640
Service Manual
5700A/5720A Series
Figure 7-11. A11 DAC PCA
Figure 7-11. A11 DAC PCA cont
Schematic Diagrams
22uF
Service Manual
5700A/5720A Series
Figure 7-11. A11 DAC PCA cont
Figure 7-11. A11 DAC PCA cont
Schematic Diagrams
Figure 7-11. A11 DAC PCA cont
Service Manual
5700A/5720A Series
7-52
Figure 7-11. A11 DAC PCA cont
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-11. A11 DAC PCA cont
Figure 7-12. A11A1 DAC Filter SIP PCA
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-13. A1142 DAC Buffered Reference SIP PCA
Schematic Diagrams
5700A-7650
Figure 7-14. A12 Oscillator Control PCA cont
Figure 7-14. A12 Oscillator Control PCA cont
Service Manual
4. C5 AND C55 ARE NOT INSTALLED
5700A/5720A Series
Figure 7-14. A12 Oscillator Control PCA cont
Schematic Diagrams
Figure 7-14. A12 Oscillator Control PCA cont
Service Manual
5700A/5720A Series
7-60
Figure 7-15. A13 Oscillator Output PCA
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-15. A13 Oscillator Output PCA cont
Figure 7-15. A13 Oscillator Output PCA cont
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-15. A13 Oscillator Output PCA cont
Figure 7-16. A13A1 Oscillator Wideband SMD PCA
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-16. A13A1 Oscillator Wideband SMD PCA cont
Figure 7-17. A14 High Voltage Control PCA
Schematic Diagrams
Figure 7-17. A14 High Voltage Control PCA cont
Service Manual
5700A/5720A Series
7-68
Figure 7-17. A14 High Voltage Control PCA cont
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-17. A14 High Voltage Control PCA cont
Figure 7-17. A14 High Voltage Control PCA cont
Schematic Diagrams
5700A-1660
Service Manual
5700A/5720A Series
Figure 7-18. A15 High Voltage/ High Current PCA
Figure 7-18. A15 High Voltage/High Current PCA cont
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-18. A15 High Voltage/High Current PCA cont
Schematic Diagrams
Figure 7-19. A16 Power Amplifier PCA
5700A-7670
5700A/5720A Series
Service Manual
Figure 7-19. A16 Power Amplifier PCA cont
4. NOT INSTALLED
Schematic Diagrams
Figure 7-19. A16 Power Amplifier PCA cont
10 M 2N4044
7-78
Service Manual
Figure 7-19. A16 Power Amplifier PCA cont
5700A/5720A Series
Figure 7-20. A16A1 Power Amplifier Digitial Control SIP PCA
Schematic Diagrams
7-80
Service Manual
Figure 7-20. A161A1 Power Amplifier Digital
5700A/5720A Series
Schematic Diagrams
5700A-1680
Figure 7-21. A17 Regulator/Guard Crossing PCA
Service Manual
5700A/5720A Series
Figure 7-21. A17 Regulator/Guard Crossing PCA cont
Figure 7-21. A17 Regulator/Guard Crossing PCA cont
Schematic Diagrams
5700A-7690
Service Manual
5700A/5720A Series
7-84
Figure 7-22. A18 Filter/PA Supply PCA cont
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-22. A18 Filter/PA Supply PCA cont
Figure 7-23. A19 Digital Power Supply PCA
Schematic Diagrams
Service Manual
Figure 7-23. A19 Digital Power Supply PCA cont
5700A/5720A Series
Figure 7-24. A20 CPU PCA
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-24. A20 CPU PCA cont
Figure 7-24. A20 CPU PCA cont
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-24. A20 CPU PCA cont
Figure 7-24. A20 CPU PCA cont
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-24. A20 CPU PCA cont
Figure 7-25. A21 Real Panel PCA
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-25. A21 Rear Panel PCA cont
Figure 7-25. A21 Rear Panel PCA cont
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-25. A21 Rear Panel PCA cont
Figure 7-25. A21 Rear Panel PCA cont
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-25. A21 Rear Panel PCA cont
Figure 7-26. Hybrids
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-26. Hybrids cont
Figure 7-26. Hybrids cont
Schematic Diagrams
Service Manual
5700A/5720A Series
Figure 7-26. Hybrids cont
Figure 7-26. Hybrids cont
Schematic Diagrams
5700A/5720A Series
Service Manual
10 ms 
10 ms 
