Agilent Technologies 16962A Manual de usuario

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Agilent Technologies

Agilent 16962A Logic

Analyzer

Service Guide

Notices

No part of this manual may be reproduced

in any form or by any means (including

electronic storage and retrieval or transla-

tion into a foreign language) without prior

agreement and written consent from Agi-

lent Technologies, Inc. as governed by

United States and international copyright

laws.

Manual Part Number

16962-97001

Edition

Second edition, September 2009

Available in electronic format only

Agilent Technologies, Inc.

1900 Garden of the Gods Road

Colorado Springs, CO 80907 USA

Warranty

The material contained in this docu-

ment is provided “as is,” and is sub-

ject to being changed, without notice,

in future editions. Further, to the max-

imum extent permitted by applicable

law, Agilent disclaims all warranties,

either express or implied, with regard

to this manual and any information

contained herein, including but not

limited to the implied warranties of

merchantability and fitness for a par-

ticular purpose. Agilent shall not be

liable for errors or for incidental or

consequential damages in connection

with the furnishing, use, or perfor-

mance of this document or of any

information contained herein. Should

Agilent and the user have a separate

written agreement with warranty

terms covering the material in this

document that conflict with these

terms, the warranty terms in the sep-

arate agreement shall control.

Technology Licenses

The hardware and/or software described in

this document are furnished under a

license and may be used or copied only in

accordance with the terms of such license.

Restricted Rights Legend

If software is for use in the performance of

a U.S. Government prime contract or sub-

contract, Software is delivered and

licensed as “Commercial computer soft-

ware” as defined in DFAR 252.227-7014

(June 1995), or as a “commercial item” as

defined in FAR 2.101(a) or as “Restricted

computer software” as defined in FAR

52.227-19 (June 1987) or any equivalent

agency regulation or contract clause. Use,

duplication or disclosure of Software is

subject to Agilent Technologies’ standard

commercial license terms, and non-DOD

Departments and Agencies of the U.S. Gov-

ernment will receive no greater than

Restricted Rights as defined in FAR

52.227-19(c)(1-2) (June 1987). U.S. Govern-

ment users will receive no greater than

Limited Rights as defined in FAR 52.227-14

(June 1987) or DFAR 252.227-7015 (b)(2)

(November 1995), as applicable in any

technical data.

Safety Notices

CAUTION

A CAUTION notice denotes a haz-

ard. It calls attention to an operat-

ing procedure, practice, or the like

that, if not correctly performed or

adhered to, could result in damage

to the product or loss of important

data. Do not proceed beyond a

CAUTION notice until the indicated

conditions are fully understood and

met.

WARNING

A WARNING notice denotes a

hazard. It calls attention to an

operating procedure, practice, or

the like that, if not correctly per-

formed or adhered to, could result

in personal injury or death. Do not

proceed beyond a WARNING

notice until the indicated condi-

tions are fully understood and met.

216962A Logic Analyzer Service Guide

Trademark Acknowledgements

Windows and MS Windows are U.S. regis-

tered trademarks of Microsoft Corporation.

Windows XP is a U.S. registered trademark

of Microsoft Corporation.

16962A Logic Analyzer Service Guide 3

Additional Safety Notices

This apparatus has been designed and tested in accordance with IEC Publication 1010,

Safety Requirements for Measuring Apparatus, and has been supplied in a safe condition.

This is a Safety Class I instrument (provided with terminal for protective earthing). Before

applying power, verify that the correct safety precautions are taken (see the following

warnings). In addition, note the external markings on the instrument that are described

under "Safety Symbols."

Warnings

•Before turning on the instrument, you must connect the protective earth terminal of the

instrument to the protective conductor of the (mains) power cord. The mains plug shall

only be inserted in a socket outlet provided with a protective earth contact. You must

not negate the protective action by using an extension cord (power cable) without a

protective conductor (grounding). Grounding one conductor of a two-conductor outlet

is not sufficient protection.

•Only fuses with the required rated current, voltage, and specified type (normal blow,

time delay, etc.) should be used. Do not use repaired fuses or short-circuited

fuseholders. To do so could cause a shock or fire hazard.

•If you energize this instrument by an auto transformer (for voltage reduction or mains

isolation), the common terminal must be connected to the earth terminal of the power

source.

•Whenever it is likely that the ground protection is impaired, you must make the

instrument inoperative and secure it against any unintended operation.

•Service instructions are for trained service personnel. To avoid dangerous electric

shock, do not perform any service unless qualified to do so. Do not attempt internal

service or adjustment unless another person, capable of rendering first aid and

resuscitation, is present.

•Do not install substitute parts or perform any unauthorized modification to the

instrument.

•Capacitors inside the instrument may retain a charge even if the instrument is

disconnected from its source of supply.

•Do not operate the instrument in the presence of flammable gasses or fumes.

Operation of any electrical instrument in such an environment constitutes a definite

safety hazard.

•Do not use the instrument in a manner not specified by the manufacturer.

To clean the instrument

If the instrument requires cleaning: (1) Remove power from the instrument. (2) Clean the

external surfaces of the instrument with a soft cloth dampened with a mixture of mild

detergent and water. (3) Make sure that the instrument is completely dry before reconnect-

ing it to a power source.

Safety Symbols

Instruction manual symbol: the product is marked with this symbol when it is

necessary for you to refer to the instruction manual in order to protect against

damage to the product.

Hazardous voltage symbol.

Earth terminal symbol: Used to indicate a circuit common connected to grounded

chassis.

416962A Logic Analyzer Service Guide

Agilent 16962A Logic Analyzer—At a Glance

The 16962A logic analyzer module is for the 16901A or

16902B logic analysis system frames. It provides 2 GT/s state

logic analysis and up to 8 GHz timing analysis. The 16962A

has 4 M to 100 M sample memory depth (depending on the

option chosen).

The 16962A logic analyzer module offers high performance

measurement capability.

Features

Some of the main features of the 16962A are as follows:

•68 data channels, including:

•2 clock/data channels.

•2 clock ready/data channels.

•2 GT/s maximum state acquisition speed.

•“Eye scan” feature.

•2 GHz timing analysis on all channels at full memory

depth, 4 GHz timing analysis with 1/2 channels, and

8 GHz timing analysis with 1/4 channels.

•Expandable to 340 channels (5- card set).

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 16962A logic analyzer module.

The modules can be returned to Agilent Technologies for all

service work, including troubleshooting. Contact your nearest

Agilent Technologies Sales Office for more details.

Contacting Agilent Technologies

To locate a sales or service office near you, go to

www.agilent.com/find/contactus.

16962A Logic Analyzer Service Guide 5

Application

This service guide applies to 16962A logic analyzer modules

installed in 16901A or 16902B logic analysis system frames.

The 16962A Logic Analyzer

616962A Logic Analyzer Service Guide

In This Service Guide

This book is the service guide for the 16962A logic analyzer

module.

This service guide has eight chapters.

Chapter 1, “General Information” contains information about

the module, lists accessories for the module, gives

specifications and characteristics of the module, and

provides a list of the equipment required for servicing the

module.

Chapter 2, “Preparing for Use” tells how to prepare the

module for use.

Chapter 3, “Testing Logic Analyzer Performance” gives

instructions on how to verify that the module meets its

specifications.

Chapter 4, “Calibrating” contains calibration instructions for

the module (if required).

Chapter 5, “Troubleshooting” contains explanations of

self- tests and flowcharts for troubleshooting the module.

Chapter 6, “Replacing Assemblies” explains how to replace

the module and assemblies of the module and how to return

them to Agilent Technologies.

Chapter 7, “Replaceable Parts” lists replaceable parts, shows

an exploded view, and gives ordering information.

Chapter 8, “Theory of Operation” explains how the logic

analyzer module works.

16962A Logic Analyzer Service Guide 7

Contents

Agilent 16962A Logic Analyzer—At a Glance 4

In This Service Guide 6

1 General Information

Accessories 12

Probing Accessories 12

Mainframe and Operating System 12

Specifications 13

Characteristics 14

Environmental Characteristics 15

Recommended Test Equipment 16

2 Preparing for Use

To inspect the module 18

To configure and install the module 18

To test the module 19

To clean t he module 19

3 Testing Logic Analyzer Performance

Perform the Self-Tests 24

Equipment Required for the Performance Test 25

Assemble the SMA/Flying Lead Test Connectors 26

Set Up the Test Equipment 31

Connect the Test Equipment 35

Connect the 16962A Logic Analyzer Pod to the Pulse Generator 35

Connect the Pulse Generator Output to the Oscilloscope 37

Verify and adjust the pulse generator DC offset 37

Deskew the oscilloscope 38

816962A Logic Analyzer Service Guide

Contents

Testing the Module 40

Configure the Logic Analysis System 41

Adjust sampling positions using Eye Finder 46

To re-align a stray channel 48

Test Pod 1 50

Test Pod 2 54

Test Pods 3 and 4 56

Performance Test Record 59

4 Calibrating

Calibration Strategy 62

5 Troubleshooting

To use the flowcharts 64

Mainframe Operating System 64

To run the self tests 67

Self-Test Descriptions 67

PC Board Revision Test 67

Interface FPGA Version Test 67

Interface FPGA Register Test 67

FPGA to FPGA Communication Test 67

Resource Bus Connection Test 67

EEPROM Test 68

ADC Test 68

Probe ID Read Test 68

DMA Test 68

Chip Registers Read/Write Test 68

Comparator Programming Test 68

Comparator/DAC Test 68

Comparator Delay Test 69

Comparators V Offset Test 69

Comparator Run Test 69

Comparator Calibrations Test 69

DDR2 Memory Calibrations Test 70

Freq Synth Lock Detect Test 70

Thermal Monitoring Test 70

To exit the test system 70

To test the cables 71

6 Replacing Assemblies

To remove the module 82

16962A Logic Analyzer Service Guide 9

Contents

To remove the logic analyzer cable 82

To install the logic analyzer cable 84

To replace the circuit board 86

To return assemblies 87

7 Replaceable Parts

Replaceable Parts Ordering 90

Parts listed 90

Parts not listed 90

Direct mail order system 90

Exchange assemblies 90

Replaceable Parts List 91

8 Theory of Operation

Block-Level Theory 96

Probes 97

Comparators 97

Acquisition and Memory Controller IC 97

Acquisition Memory 98

Resource Bus Connectors 98

Mainframe Interface and Control FPGA 98

Index

Tabla de contenidos

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