Agilent Technologies 1680 series Manuale utente

Agilent Technologies 1680/90-Series

Logic Analyzer

Service Guide

Publication number 01680-97016

October 2005

For Safety information, Warranties, and Regulatory information, see the pages at the end

of the book.

Advanced Test Equipment Rentals

www.atecorp.com 800-404-ATEC (2832)

The Agilent 1680/90-Series Logic Analyzer–At a Glance

Features

Some of the main features of the Agilent 1680A,AD-Series Logic Analyzers are as

follows:

• Standalone benchtop logic analyzer

• Microsoft Windows® XP Professional operating system

• 132 data channels and 4 clock/data channels on the Agilent 1680A,AD

• 98 data channels and 4 clock/data channels on the Agilent 1681A,AD

• 64 data channels and 4 clock/data channels on the Agilent 1682A,AD

• 32 data channels and 2 clock/data channels on the Agilent 1683A,AD

• 12.1-inch LCD display

• 3.5-inch flexible disk drive

• 80GB hard disk drive

• Centronics and LAN interfaces

• IEEE 1394 interface for hosted control

• Variable setup/hold time

• 512K acquisition memory in the Agilent 1680A-series

• 2M acquisition memory in the Agilent 1680AD-series

•MarkerMeasurements

•PS/2Mouse

• PS/2 keyboard support

Some of the main features of the Agilent 1690A,AD-Series Logic Analyzers are as

follows:

• Hosted benchtop logic analyzer

• 132 data channels and 4 clock/data channels on the Agilent 1690A,AD

• 98 data channels and 4 clock/data channels on the Agilent 1691A,AD

• 64 data channels and 4 clock/data channels on the Agilent 1692A,AD

• 32 data channels and 2 clock/data channels on the Agilent 1693A,AD

• IEEE 1394 interface for hosted control

• Variable setup/hold time

• 512K acquisition memory in the Agilent 1690A-series

• 2M acquisition memory in the Agilent 1690AD-series

•MarkerMeasurements

Service Strategy

The service strategy for this instrument is the replacement of defective

assemblies. This service guide contains information for finding a defective

assembly by testing and servicing the Agilent 1680/90-series logic analyzers.

This logic analyzer can be returned to Agilent for all service work, including

troubleshooting. Contact your nearest Agilent Technologies Sales Office for

details.

Agilent Technologies 1680-Series Logic Analyzer

Agilent Technologies 1690-Series Logic Analyzer

In This Book

This book is the service guide for the Agilent 1680/90-Series Logic Analyzers and

is divided into eight chapters.

Chapter 1 contains information about the logic analyzer and includes accessories,

specifications and characteristics, and equipment required for servicing.

Chapter 2 tells how to prepare the logic analyzer for use.

Chapter 3 gives instructions on how to test the performance of the logic analyzer.

Chapter 4 contains calibration instructions for the logic analyzer.

Chapter 5 contains self-tests and flowcharts for troubleshooting the logic

analyzer.

Chapter 6 tells how to replace assemblies of the logic analyzer and how to return

them to Agilent Technologies.

Chapter 7 lists replaceable parts, shows an exploded view, and gives ordering

information.

Chapter 8 explains how the logic analyzer works and what the self-tests are

checking.

Contents

The Agilent 1680/90-Series Logic Analyzer–At a Glance

Features 2

Service Strategy 3

In This Book

1 General Information

Accessories 10

Specifications 11

Characteristics 11

Recommended Test Equipment 14

2 Preparing for Use

Power Requirements 16

Operating Environment 16

Storage 16

To inspect the logic analyzer 16

To apply power 17

To connect the 1690A,AD-series logic analyzer to a host PC 17

To start the user interface 18

To clean the logic analyzer 18

To test the logic analyzer 18

3 Testing Performance

The Logic Analyzer Interface 20

Test Strategy 20

Test Interval 20

Performance Test Record 20

Test Equipment 20

To make the test connectors 21

To set up the test equipment and the logic analyzer 23

Set up the test equipment 23

Set up the 1680A,AD-series logic analyzer 24

Set up the 1690A,AD-series logic analyzer 25

To perform the logic analyzer self-tests 25

Contents

To test the threshold accuracy 28

Set up the equipment 28

Connect and configure the logic analyzer 29

Test the ECL Threshold 30

Test the 0 V User Threshold 31

Test the next pod 32

To set up the logic analyzer for the state mode tests 33

To test the single-clock, single-edge, state acquisition 37

Set up the equipment 37

Connect and configure the logic analyzer 37

Verify the test signal 40

Check the setup/hold combination 41

Test the next channels (1680/81A,AD and 1690/91A,AD) 47

To test the multiple-clock state acquisition 48

Set up the equipment 48

Connect and configure the logic analyzer 49

Verify the test signal 51

Check the setup/hold with single clock edges, multiple clocks 52

Test the next channels (1680/81A, AD and 1690/91A, AD) 56

To test the single-clock, multiple-edge, state acquisition 57

Set up the equipment 57

Connect and configure the logic analyzer 58

Verify the test signal 60

Check the setup/hold with single clock, multiple clock edges 61

Test the next channels (1680/81A,AD and 1690/91A,AD) 65

To test the time interval accuracy 66

Set up the equipment 66

Connect and configure the logic analyzer 67

Acquire and verify the test data 69

Performance Test Record 71

4 Calibrating and Adjusting

Logic analyzer calibration 76

Contents

5 Troubleshooting

To install the fan guard 78

To use the flowcharts 79

Troubleshooting the Agilent 1680A,AD-series 80

To check the power-up tests 87

To test the power supply voltages 87

To test the LCD display signals 89

To test disk drive voltages 90

To verify the CD-ROM 92

To recover the operating system 93

Troubleshooting the Agilent 1690A,AD-series 95

To verify connectivity 99

To test the power supply voltages 100

General Troubleshooting 103

To run the self-tests 103

Acquisition board status LEDs 106

To test the logic analyzer probe cables 107

To check the BNC Trigger input/output signals 110

To test the auxiliary power 112

6 Replacing Assemblies

1680A,AD-series disassembly/assembly 114

Prepare the instrument for disassembly 114

To remove the chassis from the sleeve 114

To remove the acquisition board 115

To remove the power supply 117

To remove the hard disk drive 118

To remove the CD-ROM drive assembly 119

To remove the flexible disk drive 120

To remove the PCI boards 122

To remove the motherboard 123

To remove the front panel assembly 126

To disassemble the front panel assembly 128

To remove the distribution board 129

To remove the inverter board 130

To remove the fans 131

To remove the cable tray 132

Contents

1690A,AD-series disassembly/assembly 133

Prepare the instrument for disassembly 133

To remove the chassis from the sleeve 133

To remove the fascia 134

To remove the acquisition board 136

To remove the deck 137

To remove the power supply 137

To remove the distribution board 138

To remove the fans 139

To remove the line filter 140

To remove the front panel and front frame 141

7 Replaceable Parts

Replaceable Parts Ordering 144

Replaceable Parts List 145

Exploded View 146

Agilent 1680A,AD-Series Replaceable Parts 147

Exploded View 153

Agilent 1690A,AD-Series Replaceable Parts 154

Power Cables and Plug Configurations 157

8 Theory of Operation

Block-Level Theory 160

Agilent 1680A,AD-series Logic Analyzer Theory 161

Power Supply 162

Acquisition Board 162

Power Distribution Board 165

Front Panel Board 165

Agilent 1690A,AD-series Logic Analyzer Theory 166

Acquisition Board 166

Power Supply 166

Power Distribution Board 166

Self-Tests Descriptions 167

Power-up Self-Tests (1680A,AD-series) 167

Connectivity Tests (1690A,AD-series) 167

Acquisition Board Self Tests 168

Logic Analyzer Self-Tests 169

General Information

This chapter lists the accessories, the specifications and characteristics, and the

recommended test equipment.

Chapter 1: General Information

Accessories

The following accessory is supplied with the Agilent 1680/90-series logic

analyzers. The part number is current as of the print date of this edition of the

Service Guide, but further upgrades may change the part number. Do not be

concerned if the accessory you receive has a different part number.

Accessories Available

For probing information, see Probing Solutions for Logic Analysis Systems

(publication 5968-4632E) available at:

http://www.agilent.com/find/logic_analyzer_probes

Accessories Supplied Agilent Part Number Qty

3-button Corded Mouse 1150-7845 1

Mini Keyboard 1150-7809 1

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