Agilent Technologies 54853A User manual

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)
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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.

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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

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Rear panel with option 017
Removable hard drive

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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.

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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