Agilent Technologies 35670A Manuale utente

Agilent Technologies

Agilent 35670A

Dynamic Signal Analyzer

Supplement to Installation,

Service and Operator’s Guide

2Agilent 35670A Supplement

Notices

No part of this manual may be reproduced in any

form or by any means (including electronic stor-

age and retrieval or translation into a foreign lan-

guage) without prior agreement and written

consent from Agilent Technologies, Inc. as gov-

erned by United States and international copy-

right laws.

Manual Part Number

35670-90067

Edition

Third Edition. August 2006

Printed in Malaysia

Agilent Technologies, Inc.

3501 Stevens Creek Blvd.

Santa Clara, CA 95052 USA

Microsoft® and Windows® are U.S. registered

trademarks of Microsoft Corporation.

Software Revision

This guide is valid for the firmware that was

installed in the instrument at the time of manu-

facture.

Warranty

The material contained in this document

is provided “as is,” and is subject to being

changed, without notice, in future edi-

tions. Further, to the maximum extent per-

mitted by applicable law, Agilent

disclaims all warranties, either express

or implied, with regard to this manual and

any information contained herein, includ-

ing but not limited to the implied warran-

ties of merchantability and fitness for a

particular purpose. Agilent shall not be

liable for errors or for incidental or conse-

quential damages in connection with the

furnishing, use, or performance of this

document or of any information contained

herein. Should Agilent and the user have a

separate written agreement with war-

ranty terms covering the material in this

document that conflict with these terms,

the warranty terms in the separate agree-

ment shall control.

Technol o gy Li c e ns e s

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

U.S. Government Restricted Rights. Software

and technical data rights granted to the federal

government include only those rights customar-

ily provided to end user customers. Agilent pro-

vides this customary commercial license in

Software and technical data pursuant to FAR

12.211 (Technical Data) and 12.212 (Computer

Software) and, for the Department of Defense,

DFARS 252.227-7015 (Technical Data - Commer-

cial Items) and DFARS 227.7202-3 (Rights in

Commercial Computer Software or Computer

Software Documentation).

Safety Notices

CAUTION

A CAUTION notice denotes a hazard. It

calls attention to an operating proce-

dure, 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 pro-

ceed 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 pro-

cedure, practice, or the like that, if not

correctly performed or adhered to,

could result in personal injury or

death. Do not proceed beyond a

WARNING notice until the indicated

conditions are fully understood and

met.

Agilent 35670A Supplement 3

In This Supplement

Purpose

The purpose of this supplement is to describe changes to the

display of the Agilent 35670A. These changes apply only to

instruments with a serial number higher than MY42506200 made

after December 2002.

Most users of the Agilent 35670A will see few or no changes in the

operation of the instrument. The changes apply to specific sections

of the Agilent 35670A Operator’s Guide, the Agilent 35670A

Installation and Verification Guide, and the Agilent 35670A

Service Guide.

How to Use This Supplement

You may use these supplement pages to mark up your other guides

or you may place supplement pages in the appropriate locations in

those guides. Each segment of this document indicates which

section of the original guide is affected by the changes. Only

content which has changed is presented here in order to avoid

confusion.

4Agilent 35670A Supplement

Agilent 35670A Supplement 5

Contents

1Overview

Summary of Changes 8

Display 8

Rear panel 8

Board revisions 8

2 Installation and Verification Guide

Preparing the Analyzer for Use 10

To connect the analyzer to an external monitor 10

3 Operator’s Guide

Formatting the Display 12

To control the screen 12

4ServiceGuide

Preparing the Analyzer for Use 14

AC Power Cable and Grounding Requirements 14

To connect the analyzer to an external monitor 15

Troubleshooting the Analyzer 16

To perform initial verification 16

To troubleshoot the power supply 19

To troubleshoot power-up failures 20

To troubleshoot CPU, memory and buses failures 21

To troubleshoot display failures 22

To troubleshoot IIC bus failures 24

To troubleshoot fast bus failures 26

To troubleshoot memory or battery failures 27

Adjusting the Analyzer 28

Adjusting the analyzer 28

To adjust the frequency reference 28

To adjust the display voltage 28

Replacing Assemblies 29

6Agilent 35670A Supplement

What to do before replacing the CPU assembly 29

What to do after replacing an assembly 30

To r e m o v e C P U 31

To r e m o v e N V R A M 32

To remove memory 32

To remove motherboard 32

Replaceable Parts 33

Assemblies 33

Cables 34

Instrument Covers and Handles 34

Front Panel Parts 35

Rear Panel Parts 36

Chassis Parts 36

Miscellaneous Parts 36

Circuit Descriptions 37

Overall Block Diagram 37

A7 CPU 39

A8 Memory 43

A9 NVRAM 43

A102 DC-DC Converter 43

Voltages and Signals 44

Assembly Locations and Connections 45

Power Supply Voltage Distribution 48

A8 Memory 48

A9 NVRAM 49

A99 Motherboard 49

A101 Display 50

A102 DC-DC Converter 51

Agilent 35670A Dynamic Signal Analyzer

Supplement to Installation, Service and Operator’s Guide

Agilent Technologies

Overview

The changes to the Agilent 35670A Dynamic Signal Analyzer

will not be noticeable to most users. The changes covered in the

supplement include:

•new display

•new CPU board that also incorporates the memory and

NVRAM boards

•memory options are now standard

•new external monitor interface which supports XGA

resolution.

•DC- DC converter has been replaced by a power inverter

8Agilent 35670A Supplement

1Overview

Summary of Changes

Display

Changes in the display will be imperceptible to most users. The

changes are mainly at the assembly level and are addressed in

the Service Guide.

Rear panel

The illustration below shows the new rear panel. The only

change is in the location of the external monitor connection.

This is the only place in this supplement that shows the new

rear panel unless a detailed illustration is required.

Board revisions

Throughout this supplement please note that the following is

true for all instances of the following board numbers:

•A7 (CPU) is now A17

•A8 (memory) in now incorporated into A17

•A9 (NVRAM) in now incorporated into A17 and is no longer

an option

These are global changes and will not be noted in each instance

to avoid a large number of insignificant changes.

Figure 1 Rear panel

Agilent 35670A Dynamic Signal Analyzer

Supplement to Installation, Service and Operator’s Guide

Agilent Technologies

Installation and Verification Guide

The Agilent 35670A has incorporated a standard VGA

monitor output and is now compatible with most monitors.

10 Agilent 35670A Supplement

2Installation and Verification Guide

Preparing the Analyzer for Use

To connect the analyzer to an external monitor

The External Monitor is a standard 15- pin miniature connector

that can interface with an external monitor. The monitor must

be compatible with the 49.74 kHz line rate, 61.6 Hz frame rate,

analog RGB signals, and TTL sync signals provided by the

Agilent 35670A.

1Set the analyzer’s power switch to on (|).

2Set the monitor’s power switch to on.

3Connect the external monitor’s input cable to the analyzer’s

rear panel EXT MONITOR connector.

4Press the following keys to enable external display mode:

[Disp Format]

[MORE]

[EXT MON ON OFF]

Page in original guide 2-13

Figure 2 Rear panel showing external monitor connector

Pin 1

Pin6

Pin 11

Pin 5

Pin 10

Pin 15

Number

Signal Name Pin

Number

Signal Name Pin

Number

Signal Name

1 red analog output 6 Ground 11 Not connected

2 green analog output 7 Ground 12 Not connected

3 blue analog output 8 Ground 13 TTL Horizontal Sync

4 not connected 9 Not connected 14 TTL Vertical Sync

5 Ground 10 Ground 15 Not connected

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