Fluke service manual 5700A/5720A Series, Ohms Main Assembly Simplified Schematic

Models: 5720A

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Ohms Main Assembly Simplified Schematic

5700A/5720A Series II

Service Manual

2-31.

Ohms Main Assembly Simplified Schematic

2-111

2-32.

Two-Wire Lead Drop Compensatin Circuit

2-114

2-33.

Calibration to an External 10 kΩ Standard

2-116

2-34.

Ratio Calibration, 10Ω From 100Ω

2-120

2-35.

Current Output Simplified Schematic

2-123

2-36.

Current Assembly Calibration

2-128

2-37.

Wideband Output Assembly Simplified Schematic

2-139

3-1.

Accessing the Fuse

3-4

3-2.

Accessing the Air Filter

3-5

3-3.

732B External Calibration Connections

3-9

3-4.

742A-1 and 742A-10k External Calibration Connections

3-12

3-5.

220V DC Range Calibration Connections

3-17

3-6.

Wideband Module Calibration Connection

3-19

3-7.

Overview of Verification Tests

3-22

3-8.

1 Ohm and 10 Ohm Resistor Verification

3-26

3-9.

Direct Current Accuracy Test Setup

3-30

3-10.

1 MHz Low Pass Filter

3-31

3-11.

AC Voltage Test Setup

3-32

3-12.

Alternating Current Test Setup

3-35

3-13.

Alternating Current Test Setup2 mA and 200 μA

3-36

3-14.

Metal Film Resistor Equivalent Circuit

3-37

3-15.

Metal Film Resistor in Test Circuit

3-37

3-16.

Wideband Accuracy at 1 kHz Test Setup

3-39

3-17.

Wideband Flatness Test Setup

3-40

3-18.

DC Voltage Linearity Test

3-43

3-19.

DC Voltage Output Noise Test Setup

3-44

3-20.

Determining Other Test Limits

3-49

4-1.

Air Filter

4-3

4-2.

Rear Panel Removal

4-5

4-3.

Rear Panel Assembly Access

4-5

4-4.

Front Panel Removal

4-6

4-5.

Analog and Digital Assemblies

4-8

5-1.

Waveform at TP10

5-42

5-2.

Waveform at TP1

5-43

5-3.

Waveform at TP15

5-44

5-4.

Waveform at Pins 14 and 15 of U1

5-45

5-5.

Waveform at Pin 6 of U9

5-46

5-6.

Waveform at Pin 11 of K2

5-48

5-7.

Waveform at Pin 6 of K2

5-49

5-8.

Verifying the 220 uA Range of the 220 μA/2.2 mA Amp Circuit

5-49

5-9.

Verifying the 2.2 mA Range of the 220 μA/2.2 mA Amp Circuit

5-50

5-10.

Verifying the 22 mA Range of the 22 mA/220 mA Amp Circuit

5-50

5-11.

Verifying the 220 mA Range of the 22 mA/220 mA Amp Circuit

5-51

5-12.

Waveform at Pin 4 of U13

5-52

5-13.

Waveform at TP12

5-53

5-14.

Waveform at TP13

5-54

5-15.

Waveform at TP16

5-55

5-16.

Waveform at Pin 13 of U6

5-57

5-17.

Waveform at TP6

5-59

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Page 22
Image 22
Fluke service manual 5700A/5720A Series, Ohms Main Assembly Simplified Schematic