Agilent Technologies Infiniium 80000 Series User manual

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Service Guide
Publication Number D8104-97006
September 2006
©Copyright Agilent Technologies 2006
All Rights Reserved.
80000 Series Infiniium Oscilloscopes

2
The Agilent Technologies Infiniium Oscilloscope 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 analysismeasurement
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.
• All models offer 20 GSa/s sampling rate on all
four channels, or 40 GSa/s sampling rate in
two-channel mode.
• Models with bandwidths from 2 GHz to 13 GHz.
Display shows waveforms and graphical user
interface
• Graphical interface allows direct interaction
with waveforms, including drag-and-drop
positioning and instant waveform zoom.
• Touchscreen display allows oscilloscope
operation without an external pointing device.
• 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.
Horizontalcontrols set sweep speed and position
• Main sweep speeds from 5 ps/div to 20 s/div.
• 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 USB 2.0 port 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 trigger modes.
• 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.

3
80000 Series Oscilloscope Front Panel
Power
Acquisition and
General Controls
Horizontal
Controls
Marker and Quick
Measurement
Controls
Vertical
Controls
Vertical
Inputs
Trigger
Setup
AutoProbe
Interface
Touchscreen
Display
USB 2.0
Port
Aux OutTrigger
Setup

4
80000 Series Oscilloscope Rear Panel
Note: Your instrument’s rear panel configuration may differ from this diagram.
LAN
Port
GPIB Interface
Mouse
and
Keyboard
Ports
Video
Output
CD-ROM
Drive
USB
Ports
Line In
Line Out
Microphone
TTL
Trig
Out
AC Power
Input
Aux
Trig
In
Parallel
Printer
Port
RS232
COM
Port
Rear
Foot
Kensington
Equipment
Lock
Optional
Removable
Hard Drive
10 MHz
Ref In
10 MHz
Ref Out

5
In This Book
This book provides the service documentation for the Agilent Technologies 80000 Series
oscilloscopes. It is divided into eight chapters.
Chapter 1, "General Information," provides information about which oscilloscopes are covered
by this manual, environmental requirements, and oscilloscope dimensions.
Chapter 2, "Setting Up the Oscilloscope," explains how to prepare the oscilloscope for use.
Chapter 4, "Testing Performance," provides information about testing the oscilloscope to verify
that it performs according to specifications.
Chapter 3, "Calibration," explains how and when you should run the user calibration procedure.
Chapter 5, "Troubleshooting," provides information about how to identify defective assemblies.
Chapter 6, "Replacing Assemblies," gives the procedures and techniques for replacing defective
parts.
Chapter 7, "Replaceable Parts," includes a list of exchange assemblies and other replaceable
parts, part ordering information, and shipping information.
Chapter 8, "Theory of Operation," briefly describes the internal operation of the oscilloscope.
At the back of the book you will find safety notices.

6

Contents
7
1 General Information
Instruments covered by this service guide 11
To determine whether the oscilloscope is under warranty 12
Accessories supplied 13
Options and Accessories Available 13
Specifications & characteristics 13
Environmental Conditions 14
Measurement Category 14
Oscilloscope Dimensions 15
2 Setting Up the Oscilloscope
To inspect package contents 18
To connect power 20
To connect the mouse, keyboard, LAN, printer, and GPIB cable 23
To connect SMA Cables 24
To connect optional InfiniiMax oscilloscope probes 25
To tilt the oscilloscope upward for easier viewing 27
To turn on the oscilloscope 28
Screen Saver 29
To turn off the oscilloscope 29
To verify basic oscilloscope operation 30
Installing application programs on Infiniium 31
Changing Windows System Settings 31
To clean the oscilloscope 32
3 Calibration
To run the self calibration 35
4TestingPerformance
Performing Self-Test and Calibration 39
Offset Accuracy Test 41
DC Gain Accuracy Test 48
Analog Bandwidth - Maximum Frequency Check 54
Performance Test Record 61
5Troubleshooting
To install the fan safety shield 67
To troubleshoot the oscilloscope 68
Primary Trouble Isolation 68
Power Supply Trouble Isolation 76
Power Board Trouble Isolation 79
Display Trouble Isolation 83
To check the backlight inverter voltages 84
To check the display board video signals 85

Contents
8
Front Panel Display Trouble Isolation 86
Front Panel Trouble Isolation 88
Motherboard Verification 89
To setup the BIOS 94
Acquisition Trouble Isolation 95
AutoProbe Board Trouble Isolation 96
To check the keyboard; Trouble Isolation Procedure 97
To check the LEDs 98
Software Revisions 99
To check probe power outputs 100
6 Replacing Assemblies
To return the oscilloscope to Agilent Technologies for service 103
To remove and replace the covers 104
To disconnect and connect Mylar flex cables 106
To remove and replace the AutoProbe assembly 107
To remove and replace the probe power and control board 109
To remove and replace the backlight inverter board 111
To remove and replace the front panel assembly 112
To remove and replace the keyboard, touch screen, and flat-panel display assemblies 115
To remove and replace the acquisition board assembly 118
To set the calibration factors after replacing the acquisition board 121
To remove and replace the power regulator distribution board 123
To remove and replace the PCI bridge board 124
To remove and replace the display board 125
To remove and replace the hard disk drive 126
To remove and replace the CD-ROM drive 128
To remove and replace the motherboard 130
To remove and replace the power supply 131
To remove and replace the fans 133
7 Replaceable Parts
Ordering Replaceable Parts 136
Power Cables and Plug Configurations 137
Exploded Views 139
Replaceable Parts List 143
8 Theory of Operation
Block-Level Theory 149
Acquisition Theory 153
Index 157

1
Instruments covered by this service guide 11
To determine whether the oscilloscope is under warranty 12
Accessories supplied 13
Options and Accessories Available 13
Specifications & characteristics 13
Environmental Conditions 14
Measurement Category 14
Oscilloscope Dimensions 15
General Information