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General Information
This chapter of the Agilent Technologies Infiniium Oscilloscope Service Guide gives
you general information about the instrument. The following topics are covered in this
chapter.
• Instrument identification
• Options
• Accessories
• Specifications and characteristics
• Test equipment requirements
Instruments covered by this service guide
On the rear panel of the instrument is a serial number label and a VIN # label. The serial number
is in the form of XX00000000 while the VIN # is in the form of VIN # 0XX. The serial number is
composed of two parts: the first two letters and the first four numbers are the serial prefix, while
the last four numbers are the suffix. The prefix is normally the same for all identical oscilloscopes
and changes only when a change has been made to the oscilloscope. However, the suffix is
sequentially assigned and is different for each oscilloscope. The contents of this manual applies
to oscilloscopes with serial number prefixes listed on the title page.
An oscilloscope manufactured after the printing of this manual may have a newer serial number
prefix. This newer serial prefix indicates that the oscilloscope may be different from those
described in this manual. The manual for this oscilloscope will be revised as needed. If you have
an oscilloscope with a newer serial prefix, please refer to the Agilent Technologies website and
download a newer manual edition in Adobe Acrobat (pdf) format. The Agilent Technologies
URL is: “www.agilent.com”. It will be necessary to search on a key word such as “Infiniium
Service Guide”, and follow the links.
For additional information on configuration differences see the following sections in this service
guide:
• “To configure the motherboard jumpers and setup the BIOS” in the Troubleshooting section
5 for information on determining:
•which computer configuration is contained in your oscilloscope
•setting up the BIOS correctly for that configuration
•setting the motherboard jumpers if the PC motherboard is changed.
• Replaceable Parts section 7.
This section contains exploded views for the different motherboard configurations, cabling
schemes, and outside hardware versions. The Replaceable Parts List also contains the
assembly part numbers for the different oscilloscope configurations.
Table 1-1
Oscilloscopes Covered by this Service Guide
The oscilloscope can be identified by the product number on the back panel.
Model Description
Agilent 54846A Four-channel digitizing oscilloscope with 8 GSa/s sample rate in 2-channel mode, 4
GSa/s sample rate in 4-channel mode, 2.25 GHz bandwidth
Agilent 54845A Four-channel digitizing oscilloscope with 8 GSa/s sample rate in 2-channel mode, 4
GSa/s sample rate in 4-channel mode, 1.5 GHz bandwidth
Agilent 54835A Four-channel digitizing oscilloscope with 4 GSa/s sample rate in 2-channel mode,
2 GSa/s sample rate in 4-channel mode, 1 GHz bandwidth