Agilent Technologies N5264A User manual

Service Guide
N5264A
Agilent Technologies
PNA-X Measurement Receiver
Part Number N5264-90001
Printed in USA
May 22, 2014
Supersedes Print Date: January 2014
Agilent Technologies, Inc. 2008 - 2014

ii Service Guide N5264-90001
Warranty Statement
THE MATERIAL CONTAINED IN THIS DOCUMENT IS PROVIDED “AS IS,” AND IS SUBJECT TO BEING
CHANGED, WITHOUT NOTICE, IN FUTURE EDITIONS. FURTHER, TO THE MAXIMUM EXTENT PERMITTED
BY APPLICABLE LAW, AGILENT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED WITH
REGARD TO THIS MANUAL AND ANY INFORMATION CONTAINED HEREIN, INCLUDING BUT NOT LIMITED
TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
AGILENT SHALL NOT BE LIABLE FOR ERRORS OR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES IN
CONNECTION WITH THE FURNISHING, USE, OR PERFORMANCE OF THIS DOCUMENT OR ANY
INFORMATION CONTAINED HEREIN. SHOULD AGILENT AND THE USER HAVE A SEPARATE WRITTEN
AGREEMENT WITH WARRANTY TERMS COVERING THE MATERIAL IN THIS DOCUMENT THAT CONFLICT
WITH THESE TERMS, THE WARRANTY TERMS IN THE SEPARATE AGREEMENT WILL CONTROL.
DFARS/Restricted Rights Notice
If software is for use in the performance of a U.S. Government prime contract or subcontract, Software is
delivered and licensed as “Commercial computer software” as defined in DFAR 252.227-7014 (June 1995),
or as a “commercial item” as defined in FAR 2.101(a) or as “Restricted computer software” as defined in
FAR 52.227-19 (June 1987) or any equivalent agency regulation or contract clause. Use, duplication or
disclosure of Software is subject to Agilent Technologies’ standard commercial license terms, and non-DOD
Departments and Agencies of the U.S. Government will receive no greater than Restricted Rights as defined
in FAR 52.227-19(c)(1-2) (June 1987). U.S. Government users will receive no greater than Limited Rights as
defined in FAR 52.227-14 (June 1987) or DFAR 252.227-7015 (b)(2) (November 1995), as applicable in any
technical data.
Certification
Agilent Technologies, Inc. certifies that this product met its published specifications at the time of shipment
from the factory. Agilent Technologies, Inc. further certifies that its calibration measurements are traceable
to the United States National Institute of Standards and Technology, to the extent allowed by the Institute's
calibration facility, and to the calibration facilities of other International Standards Organization members.

Service Guide N5264-90001 iii
Assistance
Product maintenance agreements and other customer assistance agreements are available for Agilent
Technologies, Inc. products. For information about these agreements and for other assistance, contact
Agilent. Refer to “Contacting Agilent” on page 2-9.
Safety and Regulatory Information
The safety and regulatory information pertaining to this product is located in Chapter 1, “Safety and
Regulatory Information.”
Safety Notes
The following safety notes are used throughout this manual. Familiarize yourself with each of the notes and
its meaning before operating this instrument. All pertinent safety notes for using this product are located in
Chapter 1, “Safety and Regulatory Information.”
WARNING Warning denotes a hazard. It calls attention to a procedure which, if not correctly
performed or adhered to, could result in injury or loss of life. Do not proceed beyond a
warning note until the indicated conditions are fully understood and met.
CAUTION Caution denotes a hazard. It calls attention to a procedure that, if not correctly performed or
adhered to, could result in damage to or destruction of the instrument. Do not proceed
beyond a caution sign until the indicated conditions are fully understood and met.
Documentation Map
The online Help files are embedded in the instrument, offering quick reference to
programming and user documentation. From the Help drop-down menu, you can
access the Help system in five different languages. Also, you can view a product
overview multimedia presentation and access the measurement receiver’s Web
page.

iv Service Guide N5264-90001
The Installation and Quick Start Guide helps you to quickly familiarize yourself with
the measurement receiver. Procedures are provided for installing, configuring, and
verifying the operation of the measurement receiver.
Printing Copies of Documentation from the Web
To print copies of documentation from the Web, download the PDF file from the Agilent web site:
•Gotohttp://www.agilent.com.
• Enter the document’s part number (located on the title page) in the Search box.
•ClickSearch.
• Open the PDF and print the document.

Contents
Service Guide N5264-90001 Contents-1
1 Safety and Regulatory Information
Information in This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Chapter One at-a-Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Safety Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
General Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Safety Earth Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Before Applying Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Electrostatic Discharge Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Instrument Markings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Lithium Battery Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
2 General Product Information
Information in This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Chapter Two at-a-Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Physical Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Electrical Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Options Available. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Options as Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Option 010, Time Domain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Option 108, LO Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Option 118, Fast CW Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Option 1CP, Rack Mount Flange Kit for Instruments with Handles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Option 1CM, Rack Mount Flange Kit for Instruments without Handles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Analyzer Accessories Available . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Pulse I/O Adapter-N1966A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Upgrades Available . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Required Service Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Agilent Support, Services, and Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Service and Support Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Contacting Agilent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Shipping Your Instrument to Agilent for Service or Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
3TestsandAdjustments
Information in This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Conventions Used for Hardkeys, Softkeys, and Menu Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Chapter Three at-a-Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Verify the Operating Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Protect Against Electrostatic Discharge (ESD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Allow the Analyzer to Warm Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Review the Principles of Connector Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Performance Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Frequency Accuracy Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
10 MHz Frequency Reference Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Contents-2 Service Guide N5264-90001
Contents
Synthesizer Bandwidth Adjustment (Option 108) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
EE Default Adjustment (Option 108). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
4 Troubleshooting
Information in This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
Chapter Four at-a-Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Conventions Used for Hardkeys, Softkeys, and Menu Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Operating the Analyzer With Covers Removed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Protect Against Electrostatic Discharge (ESD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Assembly Replacement Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Getting Started with Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Check the Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Troubleshooting Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Power Up Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
Power Supply Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
Troubleshooting LCD Display Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
Front Panel Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13
Front Panel Keypad and RPG Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13
A3 Display Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15
Checking the A2 USB Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-16
A1 Front Panel Interface Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-16
Rear Panel Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-17
Checking the USB Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-17
Checking the CONTROLLER Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-17
LAN Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-18
Instrument Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-23
N5264A PNA-X Measurement Receiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-23
5 Theory of Operation
Information in This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
Chapter Five at-a-Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
Measurement Receiver System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Functional Groups of the Measurement Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5
Synthesized LO Group Operation (Option 108) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
A10 Frequency Reference Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8
A11 13.5 GHz LO Synthesizer Board (Option 108) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-9
A21 Multiplier/Amplifier 26.5 Board (HMA26.5) (Option 108). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-10
A19 Test Set Motherboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-10
IF Multiplexer Group Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-14
Rear Panel IF Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-14
A20 IF Multiplexer Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-14
Digital Processing and Digital Control Group Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-16
Front Panel Subgroup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-18
Data Acquisition and Processing Subgroup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-18
Power Supply Group Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-21
6 Replaceable Parts

Contents
Service Guide N5264-90001 Contents-3
Information in This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Chapter Six at-a-Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Assembly Fault Identification and Replacement Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Replaceable Parts Listings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Front Panel Assembly, Front Side, All Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Front Panel Assembly, Back Side, All Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Top Assemblies, All Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Top Cables, All Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
Bottom Assemblies, All Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
Bottom Cables, All Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20
Top Hardware and Miscellaneous Parts, All Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22
Bottom Hardware and Miscellaneous Parts, All Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24
Internal Hardware and Miscellaneous Parts, All Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-26
External Hardware and Miscellaneous Parts, All Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28
Rear Panel Assembly, All Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-30
Miscellaneous Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-32
7 Repair and Replacement Procedures
Information in This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Chapter Seven at-a-Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Personal Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Electrostatic Discharge (ESD) Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Removal and Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
Removing the Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
Removing and Replacing the Front Panel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Removing and Replacing the A1–A3 and Other Front Panel Subassemblies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10
Removing and Replacing the A10, A11, and A12 Boards
(For analyzers with serial numbers prefixed MY/SG/US5144 and below.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-14
Removing and Replacing the A10, A11, and A12 Boards
(For analyzers with serial numbers prefixed MY/SG/US5204 and above.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-16
Removing and Replacing the A14 System Motherboard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18
Removing and Replacing the A15 Midplane Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20
Removing and Replacing the A16 Power Supply Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
Removing and Replacing the A17 CPU Board Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24
Removing and Replacing the A18 GPIB Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-26
Removing and Replacing the A19 Test Set Motherboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-28
Removing and Replacing the A20 IF Multiplexer Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-30
Removing and Replacing the A21 HMA26.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32
Removing and Replacing the A51 Solid State Drive (SSD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-34
Removing and Replacing the Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-36
Removing and Replacing the Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-38
Removing and Replacing the Lithium Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-40
Post-Repair Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-42
8 General Purpose Maintenance Procedures
Information in This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Chapter Eight at-a-Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

Contents-4 Service Guide N5264-90001
Contents
Conventions Used for Hardkeys, Softkeys, and Menu Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-2
Option Enable Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-3
Accessing the Option Enable Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-3
Option Entitlement Certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-3
Enabling or Removing Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-4
Repairing and Recovering Option Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-5
Installing or Changing a Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-6
Firmware Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-7
How to Check the Current Firmware Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
Downloading from the Internet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
Operating System Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8
Recovering from Hard Disk Drive Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-8

Service Guide N5264-90001 1-1
1Safety and Regulatory Information

1-2 Service Guide N5264-90001
Safety and Regulatory Information PNA-X Measurement Receiver
Information in This Chapter N5264A
Information in This Chapter
This chapter provides safety information that will help protect you and your measurement receiver. It also
contains information that is required by various government regulatory agencies.
Chapter One at-a-Glance
Section Title Summary of Content Start Page
Safety Symbols Descriptions of CAUTION and WARNING symbols
used throughout this manual.
Page 1-3
General Safety Considerations A list of safety points to consider when servicing your
measurement receiver.
Page 1-3
Electrostatic Discharge Protection A discussion of electrostatic discharge (ESD) and
related recommendations and requirements for ESD
protection.
Page 1-6
Regulatory Information Definitions of instrument markings.
Instructions for disposing of the measurement
receiver’s lithium battery.
Page 1-7

Service Guide N5264-90001 1-3
PNA-X Measurement Receiver Safety and Regulatory Information
N5264A Safety Symbols
Safety Symbols
The following safety symbols are used throughout this manual. Familiarize yourself with each of the symbols
and its meaning before operating this instrument.
CAUTION Caution denotes a hazard. It calls attention to a procedure that, if not correctly performed or
adhered to, could result in damage to or destruction of the instrument. Do not proceed
beyond a caution note until the indicated conditions are fully understood and met.
WARNING Warning denotes a hazard. It calls attention to a procedure which, if not correctly
performed or adhered to, could result in injury or loss of life. Do not proceed beyond a
warning note until the indicated conditions are fully understood and met.
General Safety Considerations
Safety Earth Ground
WARNING This is a Safety Class I product (provided with a protective earthing ground incorporated
in the power cord). The mains plug shall only be inserted in a socket outlet provided with
a protective earth contact. Any interruption of the protective conductor, inside or outside
of the instrument, will make the instrument dangerous. Intentional interruption is
prohibited.
CAUTION Always use the three-prong AC power cord supplied with this product. Failure to ensure
adequate grounding by not using this cord may cause product damage.
Before Applying Power
WARNING If this product is not used as specified, the protection provided by the equipment could be
impaired. This product must be used in a normal condition (in which all means for
protection are intact) only.
WARNING If an instrument handle is damaged, you should replace it immediately. Damaged handles
can break while you are moving or lifting the instrument and cause personal injury or
damage to the instrument.
CAUTION This instrument has autoranging line voltage input. Be sure the supply voltage is within the
specified range.

1-4 Service Guide N5264-90001
Safety and Regulatory Information PNA-X Measurement Receiver
General Safety Considerations N5264A
WARNING Supply voltages which oscillate between the two normal input ranges of the autoranging
line voltage input will damage the power supply. In rare cases, this damage has become a
user safety concern. If unstable power levels are expected, the instrument’s input power
must be buffered by a line conditioner.
CAUTION This product is designed for use in Installation Category II and Pollution Degree 2.
CAUTION Do not operate the instrument with the outer cover removed for more than 30 minutes, as
this could cause the instrument to overheat which could result in costly damage.
CAUTION Ventilation Requirements: When installing the product in a cabinet, the convection into and
out of the product must not be restricted. The ambient temperature (outside the cabinet)
must be less than the maximum operating temperature of the instrument by 4 C for every
100 watts dissipated in the cabinet. If the total power dissipated in the cabinet is greater
than 800 watts, then forced convection must be used.
Servicing
WARNING These servicing instructions are for use by qualified personnel only. To avoid electrical
shock, do not perform any servicing unless you are qualified to do so.
WARNING Danger of explosion if battery is incorrectly replaced. Replace only with the same or
equivalent type recommended. Discard used batteries according to local ordinances
and/or manufacturer’s instructions.
WARNING Procedures described in this document may be performed with power supplied to the
product while protective covers are removed. Energy available at many points may, if
contacted, result in personal injury.
CAUTION Do not operate the instrument with the outer cover removed for more than 30 minutes, as
this could cause the instrument to overheat which could result in costly damage.

Service Guide N5264-90001 1-5
PNA-X Measurement Receiver Safety and Regulatory Information
N5264A General Safety Considerations
WARNING No operator serviceable parts inside. Refer servicing to qualified personnel. To prevent
electrical shock, do not remove covers.
WARNING The opening of covers or removal of parts may expose dangerous voltages. Disconnect the
instrument from all voltage sources while it is being opened.
WARNING The detachable power cord is the instrument disconnecting device. It disconnects the
mains circuits from the mains supply before other parts of the instrument. The front panel
switch is only a standby switch and is not a LINE switch (disconnecting device).
NOTE There are no replaceable fuses in the mains input or within the power supply assembly.
IMPORTANT Agilent personnel: after calibration is completed, attach four “calibration void if seal broken”
stickers to the PNA as shown in Figure 1-1.
Figure 1-1 Location of Calibration Stickers on PNA

1-6 Service Guide N5264-90001
Safety and Regulatory Information PNA-X Measurement Receiver
Electrostatic Discharge Protection N5264A
Electrostatic Discharge Protection
Protection against electrostatic discharge (ESD) is essential while removing assemblies from or connecting
cables to the measurement receiver. Static electricity can build up on your body and can easily damage
sensitive internal circuit elements when discharged. Static discharges too small to be felt can cause
permanent damage. To prevent damage to the instrument:
•always have a grounded, conductive table mat in front of your test equipment.
•always wear a grounded wrist strap, connected to a grounded conductive table mat, having a 1 M
resistor in series with it, when handling components and assemblies or when making connections.
•always wear a heel strap when working in an area with a conductive floor. If you are uncertain about the
conductivity of your floor, wear a heel strap.
•always ground yourself before you clean, inspect, or make a connection to a static-sensitive device or
test port. You can, for example, grasp the grounded outer shell of the test port or cable connector briefly.
•always ground the center conductor of a test cable before making a connection to any static-sensitive
device. This can be done as follows:
1. Connect a short (from your calibration kit) to one end of the cable to short the center conductor to the
outer conductor.
2. While wearing a grounded wrist strap, grasp the outer shell of the cable connector.
3. Connect the other end of the cable to the test port and remove the short from the cable.
Figure 1-2 shows a typical ESD protection setup using a grounded mat and wrist strap. Refer to “ESD
Supplies” on page 6-33 for part numbers.
Figure 1-2 ESD Protection Setup

Service Guide N5264-90001 1-7
PNA-X Measurement Receiver Safety and Regulatory Information
N5264A Regulatory Information
Regulatory Information
This section contains information that is required by various government regulatory agencies.
Instrument Markings
Familiarize yourself with these instrument markings and their meanings before operating the instrument.
The instruction documentation symbol. The product is marked with this symbol when it is necessary
for the user to refer to the instructions in the documentation.
The AC symbol indicates the required nature of the line module input power.
This symbol indicates separate collection for electrical and electronic equipment, mandated under EU
law as of August 13, 2005. All electric and electronic equipment are required to be separated from
normal waste for disposal (Reference WEEE Directive, 2002/96/EC).
This symbol indicates that the power line switch is ON.
This symbol indicates that the power line switch is in the STANDBY position.
This symbol indicates that the power line switch is in the OFF position.
This symbol is used to identify a terminal which is internally connected to the product frame or
chassis.
The CE mark is a registered trademark of the European Community. (If accompanied by a year, it is
when the design was proven.)
The CSA mark is a registered trademark of the CSA International.
This mark designates the product is an Industrial Scientific and Medical Group 1 Class A product
(reference CISPR 11, Clause 5).
This is a marking to indicate product compliance with the Canadian Interference-Causing Equipment
Standard (ICES-001).
Direct Current.
IP 2 0 The instrument has been designed to meet the requirements of IP 2 0 for egress and operational
environment.
The RCM mark is a registered trademark of the Australian Communications and Media Authority.
Indicates the time period during which no hazardous or toxic substance elements are expected to
leak or deteriorate during normal use. Forty years is the expected useful life of the product.
This symbol on all primary or secondary packaging indicates compliance to China standard GB
18455-2001.
I CES/NM B-001

1-8 Service Guide N5264-90001
Safety and Regulatory Information PNA-X Measurement Receiver
Regulatory Information N5264A
Lithium Battery Disposal
If the battery on the A17 CPU board assembly needs to be disposed of, dispose of it in accordance with your
country’s requirements. If required, you may return the battery to Agilent Technologies for disposal. Refer to
“Contacting Agilent” on page 2-9 for assistance.
For instructions on removing and replacing the battery on the A17 CPU board assembly, refer to “Removing
and Replacing the Lithium Battery” on page 7-40.
South Korean Certification (KC) mark; includes the marking's identifier code which follows the
format: MSIP-REM-YYY-ZZZZZZZZZZZZZZ or KCC-REM-YYY-ZZZZZZZZZZZZ.

Service Guide N5264-90001 2-1
2General Product Information

2-2 Service Guide N5264-90001
General Product Information PNA-X Measurement Receiver
Information in This Chapter N5264A
Information in This Chapter
Chapter Two at-a-Glance
Maintenance
Physical Maintenance
WARNING To prevent electrical shock, disconnect the product from the mains source before cleaning. Use
a dry cloth or one slightly dampened with water to clean the external case parts. Do not attempt
to clean internally.
Electrical Maintenance
Refer to “Review the Principles of Connector Care” on page 3-4.
Section Title Summary of Content Start Page
Maintenance Cleaning instructions for the external surfaces of
your measurement receiver.
Information about electrical maintenance of your
measurement receiver.
Page 2-2
Options Available A list of the options available for your measurement
receiver.
Page 2-3
Analyzer Accessories Available A hyperlink to the PNA Configuration Guide, which
includes a list of accessories available for the
microwave network analyzers.
Page 2-4
Upgrades Available A list of the upgrades available for your
measurement receiver.
Page 2-5
Required Service Test Equipment A list of service equipment that is required to
perform performance tests, adjustments, and
troubleshooting.
Page 2-6
Agilent Support, Services, and
Assistance
The Internet address (URL) for on-line assistance.
Service and support options available.
Calibration options available.
Important information about shipping your
measurement receiver to Agilent for service or
repair.
Page 2-9

Service Guide N5264-90001 2-3
PNA-X Measurement Receiver General Product Information
N5264A Options Available
Options Available
Options as Upgrades
The options described in this section can be ordered as upgrades. Refer to “Upgrades Available” on page
2-5.
Individual upgrade kits are also available and can be ordered by part number. Refer to “Miscellaneous Part
Numbers” on page 6-32 for a complete list of available kits.
Option 010, Time Domain
With Option 010, the measurement receiver can display the time domain response of a network or test
device by calculating the inverse Fourier transform of the frequency domain response. This calculation
allows the Option 010 measurement receiver to show the response of a test device as a function of time or
distance. In time domain, the magnitude and location of a discontinuity and the characteristics of individual
transmission paths of a network or test device can be determined. Time domain operation retains all the
accuracy of active error correction.
Option 108, LO Source
Option 108 adds the internal hardware necessary to provide a synthesized LO source at a rear-panel
connector.
Option 118, Fast CW Mode
With Option 108, the measurement receiver can operate at faster speeds in CW mode.
Option 1CP, Rack Mount Flange Kit for Instruments with Handles
Option 1CP provides a rack mount kit that contains a pair of flanges (cut to adapt to handles), rack mount
rails, and the necessary hardware to mount the instrument in an equipment rack with 482.6 mm (19 inches)
horizontal spacing.
Additional kits may be ordered from Agilent. Refer to “Miscellaneous Part Numbers” on page 6-32 for the
part numbers.
Option 1CM, Rack Mount Flange Kit for Instruments without Handles
Option 1CM provides a rack mount kit that contains a pair of flanges, rack mount rails, and the necessary
hardware to mount the instrument in an equipment rack with 482.6 mm (19 inches) horizontal spacing.
Additional kits may be ordered from Agilent. Refer to “Miscellaneous Part Numbers” on page 6-32 for the
part numbers.

2-4 Service Guide N5264-90001
General Product Information PNA-X Measurement Receiver
Analyzer Accessories Available N5264A
Analyzer Accessories Available
To see a list of the accessories available for the network analyzers, including ordering information, refer to
the Agilent PNA Family Microwave Network Analyzers Configuration Guide, available online at
http://cp.literature.agilent.com/litweb/pdf/5990-7745EN.pdf
Pulse I/O Adapter-N1966A
An adapter for connecting between the analyzer’s rear-panel PULSE I/O connector and the coaxial inputs
and outputs of external pulse generators and external pulse modulators. The adapter contains 11 SMB-male
coaxial connectors and a mating connector for the rear-panel PULSE I/O connector.
This adapter can be ordered as model number N1966A.
Figure 2-1. Pulse I/O Adapter