5700A/5720A Series II

5700A/5720A Series II

Service Manual

 

1-34.

General Specifications

1-36

 

1-35.

Auxiliary Amplifier Specifications

1-37

2

Theory of Operation

2-1

 

2-1.

Introduction

2-5

 

2-2.

Calibrator Overview

2-5

 

2-3.

Internal References

2-5

 

2-4.

Hybrid Reference Amplifiers

2-5

 

2-5.

Fluke Thermal Sensor (FTS)

2-5

 

2-6.

Digital-to-Analog Converter (DAC)

2-6

 

2-7.

Digital Section Overview

2-6

 

2-8.

Analog Section Overview

2-6

 

2-9.

Functional Description Presented by Output Function

2-8

 

2-10.

DC Voltage Functional Description

2-8

 

2-11.

AC Voltage Functional Description

2-11

 

2-12.

Wideband AC V Functional Description (Option -03)

2-12

 

2-13.

DC Current Functional Description

2-12

 

2-14.

AC Current Functional Description

2-12

 

2-15.

Ohms Functional Description

2-13

 

2-16.

System Interconnect Detailed Circuit Description

2-13

 

2-17.

Digital Motherboard Assembly (A4)

2-13

 

2-18.

Transformer Assembly (A22)

2-14

 

2-19.

Analog Motherboard Assembly (A3)

2-14

 

2-20.

Front/Rear Binding Posts

2-18

 

2-21.

Rear Panel Assembly (A21)

2-18

 

2-22.

Filter PA Supply Assembly (A18)

2-18

 

2-23.

Digital Section Detailed Circuit Description

2-18

 

2-24.

Digital Power Supply Assembly (A19)

2-18

 

2-25.

+5V Power Supply

2-19

 

2-26.

±12V Power Supplies

2-19

 

2-27.

+35V Power Supply

2-19

 

2-28.

+75V Power Supply

2-20

 

2-29.

+35V and +75V Shut-Down Circuit

2-20

 

2-30.

CPU (Central Processing Unit) Assembly (A20)

2-21

 

2-31.

Power-Up and Reset Circuit

2-21

 

2-32.

Clock Generation

2-21

 

2-33.

Watchdog Timer

2-24

 

2-34.

Address Decoding and DTACK (Data Acknowledge)

2-24

 

2-35.

Interrupt Controller

2-25

 

2-36.

Glue Logic

2-25

 

2-37.

RAM (Random-Access Memory)

2-25

 

2-38.

ROM (Read-Only Memory)

2-25

 

2-39.

Electrically-Erasable Programmable Read-Only Memory

 

 

 

(EEPROM)

2-26

 

2-40.

DUART (Dual Universal Asynchronous Receiver/transmitter)

 

 

 

Circuit

2-26

 

2-41.

Clock/Calendar Circuit

2-26

 

2-42.

Clock Filter Circuit

2-27

 

2-43.

CPU to Rear Panel Interface

2-27

 

2-44.

CPU to Front Panel Interface

2-27

 

2-45.

Fan Monitor

2-27

 

2-46.

Front Panel Assembly (A2)

2-28

 

2-47.

Clock Regeneration Circuitry

2-28

 

2-48.

Refresh Failure Detect Circuitry

2-28

ii

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Fluke service manual 5700A/5720A Series, Theory of Operation