Agilent Technologies 54853A Manuale utente

Service Guide

Publication Number 54855-97008

October 2003

For Safety information, Warrantie , and Regulatory

information, ee the page at the back of thi book.

Copyright Agilent Technologie 2003

All Right Re erved.

Agilent Model 54853A, 54854A, and

54855A Infiniium Oscilloscopes

Advanced Test Equipment Rentals

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

The Agilent Technologies Infiniium Oscilloscope Model 54853/4/5A at a Glance

Ease of use with high performance

The Agilent Technologies Infiniium oscilloscopes

combine unprecedented ease-of-use with high-

performance digitizing oscilloscope functionality

to simplify your design and analysis measurement

tasks.

• Traditional oscilloscope front-panel interface

provides direct access to the controls needed

for most troubleshooting tasks

• Graphical user interface with menus,

windows, dialogs, and toolbars provides easy

access to dozens of configuration and

analysis tools, ensuring you can set up and

make the most complex measurements

• Agilent 54853A offers 4 channels, 20 GSa/s

sampling rate on all four channels, 2.5 GHz

bandwidth

• Agilent 54854A offers 4 channels, 20 GSa/s

sampling rate on all four channels, 4 GHz

bandwidth

• Agilent 54855A offers 4 channels, 20 GSa/s

sampling rate on all four channels, 6 GHz

bandwidth

Display shows waveforms and graphical user

interface

• Graphical interface allows direct interaction

with waveforms, including drag-and-drop

positioning and instant waveform zoom

• Waveforms displayed in color, making

correlation easy

• Current configuration parameters displayed

near the waveform display and are color-

coded to make identification easy

• Graphical interface menus and toolbars

simplify complex measurement setups

Horizontal controls setsweep speed and position

• Main sweep speeds from 5 ps/div to 20 s/div

(54855A/54854A) or 10 ps/div to 20 s/div

(54853A)

• Delayed sweep speeds from 1 ps/div to main

time base setting

• Intensified waveforms on main sweep

window make it easy to see what will appear

in delayed sweep window

Acquisition and general controls start and stop

the scope and do basic setup

• Run and stop controls for continuous or

single-shot acquisitions

• Clear display before one or more acquisitions

• Default setup and Autoscale set initial

configuration

Hard disk drive and floppy disk drive for saving

and restoring setups and measurement results

• Store measurement displays for inclusion in

reports and test setup guides

• Store oscilloscope setups to repeat tests

another time

• Hard disk stores oscilloscope operating

system

Trigger setup controls set mode and basic

parameters

• Select Edge, Glitch, or Advanced Modes

• Choose input source and slope

• Use graphical user interface to simplify

configuration of pattern, state, delay, and

violation

• Use auxiliary trigger to increase triggering

flexibility

Vertical controls set attenuation, and position

• Input attenuation adjustable from 1 mV/div to

1 V/div

• Color-coded knobs make it easy to find the

controls that affect each waveform

Marker and quick measurements help measure

waveform parameters

• Waveform markers A and B to check voltage

or ∆−time at any point on the displayed

waveform

• Quick Meas executes up to four predefined

measurements instantly

Service Policy

The service policy of this instrument requires

replacing defective assemblies. Some

assemblies can be replaced on an exchange

basis.

iii

Front panel

Rear panel without option 017

H

Floppy Disk Drive

Power

Acquisition and

general controls

Horizontal

controls

Display and

Graphical

Interface

Marker and Quick

Measurements Vertical

Controls

Vertical

Inputs Auxiliary

Trigger Input

Trigger

Setup

AutoProbe

Interface

GPIB Interface

Mouse and

Keyboard

Interface

VGA

Interface

CD-RW

drive

Rear

foot

LAN

and

USB

Ports

Sound In

Sound Out

Microphone Trig

Out

AC Power

Input

10 MHz

Ref Out

Parallel

Printer Port

RS232

COM

Port

Secondary

monitor

Rear panel with option 017

Removable hard drive

In Thi Book

Thi book provide the ervice documentation for the Agilent Technologie 54853A, 54854A, and

54855A o cillo cope . It i divided into even chapter .

Chapter 1 provide general information and pecification .

Chapter 2 how you how to prepare the o cillo cope for u e.

Chapter 3 give performance te t .

Chapter 4 cover calibration procedure , how to do them, and how often they need to be done.

Chapter 5 give the procedure and technique for replacing a emblie and other part .

Chapter 6 include a li t of exchange a emblie and other replaceable part , part ordering

information, and hipping information.

Chapter 7 briefly cover the internal operation of the o cillo cope.

At the back of the book you will find afety notice information.

Contents

Content –1

1 General Information

In trument covered by thi ervice guide 1-2

Acce orie upplied 1-3

Option available 1-3

Acce orie available 1-3

Specification and Characteri tic 1-5

Dimen ion 1-11

Recommended te t equipment 1-12

2 Setting Up the Oscilloscope

To connect power 2-3

To connect the mou e or other pointing device 2-5

To connect the keyboard 2-6

To connect to the LAN card 2-7

To connect o cillo cope probe 2-8

To connect SMA Cable 2-10

To connect a printer 2-11

To connect an external monitor 2-13

To connect a GPIB cable 2-13

To tilt the o cillo cope upward for ea ier viewing 2-15

To turn on the o cillo cope 2-16

To turn off the o cillo cope 2-16

To verify ba ic o cillo cope operation 2-17

In talling application program on Infiniium 2-18

Changing Window Sy tem Setting 2-18

To clean the o cillo cope 2-19

3 Testing Performance

Performance Te t Interval 3-2

Performance Te t Record 3-2

Te t Order 3-2

Te t Equipment 3-2

Before Performing Performance Verification Te ting 3-3

Vertical Performance Verification 3-4

Off et Performance Te t 3-5

DC Mea urement Accuracy (Single Cur or) Te t 3-11

Analog Bandwidth - Maximum Frequency Check 3-16

Horizontal Performance Verification 3-23

Time Ba e Accuracy Te t 3-24

Delta-time Mea urement Accuracy Te t 3-28

Trigger Performance Verification 3-31

Internal Channel Trigger Sen itivity Te t 3-32

Trigger Jitter Te t 3-43

Agilent 54853A/54A/55A Performance Te t Record 3-47

Contents

Content –2

4 Calibration

Equipment Required 4-2

Self Calibration Interval and Hardware Adju tment 4-2

Mainframe Cal Factor Memory Error 4-2

Operating Hint 4-3

Loading Default O cillo cope Setting 4-3

Loading New Software 4-3

Calibration Procedure 4-3

To check the flat panel di play (FPD) 4-4

To run the elf calibration 4-7

5 Troubleshooting

Safety 5-2

Tool Required 5-2

ESD Precaution 5-2

Key troke Convention 5-2

Default Setup 5-3

To in tall the fan afety hield 5-3

To trouble hoot the in trument 5-4

Primary Trouble I olation 5-6

No Di play Trouble I olation 5-10

Front Panel Di play Debug 5-11

Motherboard Verification 5-13

To configure the motherboard jumper and etup BIOS 5-16

POST Code Li ting 5-19

Front Panel Debug 5-21

Power Supply Trouble I olation 5-22

Power Board Trouble I olation 5-24

AutoProbe Board Trouble I olation 5-25

To check the keyboard; Trouble hooting Procedure 5-26

To check the LED 5-27

To trouble hoot the acqui ition y tem 5-28

Software Revi ion 5-29

To check probe power output 5-30

To check the SVGA di play board video ignal 5-31

To check the backlight inverter voltage 5-32

Replacing Assemblies

ESD Precaution 6-2

Tool Required 6-2

To return the o cillo cope to Agilent Technologie for ervice 6-3

To remove and replace the cover 6-4

To di connect and connect Mylar flex cable 6-6

To remove and replace the AutoProbe a embly 6-7

To remove and replace the probe power and control board 6-9

To remove and replace the backlight inverter board 6-11

To remove and replace the front panel a embly 6-13

To remove and replace the keyboard and flat-panel di play a emblie 6-16

To remove and replace the acqui ition board a embly 6-19

Contents

Content –3

To remove and replace the power regulator di tribution board 6-22

To remove and replace the GPIB interface board 6-23

To remove and replace the PCI bridge board. 6-24

To remove and replace the cope interface board and SVGA di play board 6-25

To remove and replace the floppy di k drive 6-26

To remove and replace the internal hard di k drive 6-27

To remove and replace the CD-ROM drive 6-29

To remove and replace the motherboard 6-31

To remove and replace the power upply 6-33

To remove and replace the fan 6-37

7 Replaceable Parts

Ordering Replaceable Part 7-2

Power Cable and Plug Configuration 7-3

Exploded View 7-5

Replaceable Part Li t 7-10

8 Theory of Operation

Block-Level Theory 8-3

Acqui ition Theory 8-5

Content -4

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