Specifications
Table Of Contents
- General Information
- Preparing for Use
- To inspect package contents
- To connect power
- To connect the mouse, keyboard, LAN, printer, and GPIB cable
- To connect the standard 10073C probes
- To connect optional InfiniiMax oscilloscope probes
- To connect the digital probe
- Digital probe lead set
- To tilt the oscilloscope upward for easier viewing
- To turn on the oscilloscope
- To turn off the oscilloscope
- To verify basic oscilloscope operation
- Installing application programs on Infiniium
- Changing Windows System Settings
- To clean the oscilloscope
- Testing Performance
- Calibrating and Adjusting
- Troubleshooting
- To install the fan safety shield
- To troubleshoot the oscilloscope
- Primary Trouble Isolation
- No Display Trouble Isolation
- To check the backlight inverter voltages
- To check the display board video signals
- Power Supply Trouble Isolation
- To check probe power outputs
- To Check the keyboard
- To check the LEDs
- To check the motherboard, CPU, and RAM
- To setup the BIOS
- To troubleshoot the acquisition system
- Software Revisions
- Replacing Assemblies
- To return the oscilloscope to Agilent Technologies for service
- To remove and replace the top cover
- To remove and replace the bottom sleeve
- To disconnect and connect Mylar flex cables
- To remove and replace the CD-ROM drive
- To remove and replace the AutoProbe assembly
- To remove and replace the internal digital input cable (MSO models only)
- To remove and replace the backlight inverter board
- To remove and replace the front panel assembly
- To remove and replace the keyboard, touch screen, and flat-panel display assemblies
- To remove and replace the acquisition board assembly
- To remove and replace the PCI bridge board
- To remove and replace the display board
- To remove and replace the hard disk drive
- To remove and replace the motherboard
- To replace the Intel motherboard with the ADLINK motherboard
- To remove and replace the power supply
- To remove and replace the fan controller board
- To remove and replace a fan
- To remove and replace the probe power and control assembly
- Replaceable Parts
- Theory of Operation
- Index

Chapter 8: Theory of Operation
Block-Level Theory
153
Motherboard
The motherboard provides all system control and interface functions for the oscilloscope. It
contains a CPU, ROM, and RAM; keyboard and mouse interfaces, serial and parallel interfaces,
CDROM, hard disk drive interface, and PCI (Peripheral Component Interconnect) buses.
Display Board
The Display Board controls the flat-panel display monitor. It translates the video signals from
the motherboard’s on-board video system to the Low Voltage Differential Signal (LVDS) signals
that drive the FPD monitor. The display board also provides +12 V to the backlight inverter.
Probe Power and Control
The Probe Power and Control board provides filtered, regulated power to the front-panel
AutoProbe interface. It also provides serial communications capability, offset and probe
detection and identification circuitry. All of these are interfaced to the probe through the
conductive pads surrounding the BNC connectors. Using the facilities of this board, the
Autoprobe interface can supply power for active probes, notify the oscilloscope operating system
when a probe is connected or disconnected, identify the probe type to the oscilloscope operating
system for automatic configuration, and communicate with the probe to support advanced probe
functionality.