Tektronix RSA6106A, RSA6114A Service
Service
RSA6100A Series
Real-time Spectrum Analyzer
071-1914-01
This document applies to softwware
version 1.0.48 and above.
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.
www.tektronix.com
Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or
suppliers, and are protected by national copyright laws and international treaty provisions.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes
that in all previously published material. Specifications and price change privile ges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc.
14200 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA
For product information, sales, service, and technical support:
H In North America, call 1-800-833-9200.
H Worldwide, visit www.tektronix.com to find contacts in your area.
Warranty 2
Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1)
year from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its
option, either will repair the defective product without charge for parts and labor, or will provide a replacement in
exchange for the defective product. Parts, modules and replacement products used by Tektronix for warranty work
may be new or reconditioned to like new performance. All replaced parts, modules and products become the
property of Tektronix.
In order to obtain service under this warranty, Customer must notify Tektronix of t he defect before the expira tion
of the warranty period and make suitable arrangements for the performance of service. Customer shall be
responsible for packaging and shipping the defective product to the service center designated by Tektronix, with
shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a
location within the country in which the Tektronix service center is located. Customer shall be responsible for
paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage
resulting from attempts by personnel other than Tektronix representatives to install, repair or service the product;
b) to repair damage resulting from improper use or connection to incompatible equipment; c) to repair any
damage or malfunction caused by the use of non-Tektronix supplies; or d) to service a product that has been
modified or integrated with other products when the effect of such modification or integration increases the time
or difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY
OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A P ARTICULAR PURPOSE.
TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND
EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY.
TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL,
OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS
ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
Table of Contents
Operating Information
Theory of Operation
General Safety Summary v...................................
Service Safety Summary vii....................................
Preface ix...................................................
Manual Content ix.................................................
Manual Conventions ix..............................................
Related User Documents x..........................................
Operating Information 1--1.....................................
Theory of Operation 2--1.......................................
General 2--1........................................................
Signal Path and Processing 2--1.........................................
Display Panel 2--2...................................................
Front Panel 2--2.....................................................
Rear Panel 2--2......................................................
Power Supply 2--3...................................................
Fans 2--3...........................................................
Adjustment Procedures
Maintenance
Adjustment Procedure 3--1......................................
Running Alignments 3--1..............................................
Maintenance 4--1..............................................
Preventing ESD 4--1.................................................
Inspection and Cleaning 4--2...........................................
General Care 4--2................................................
Interior Cleaning 4--2.............................................
Exterior Cleaning 4--2............................................
Flat Panel Display Cleaning 4--3....................................
Restoring the Operating System 4--7..............................
Creating a Disk Backup Image 4--7......................................
Restoring the Instrument Operating System 4--9...........................
Restoring the Operating System from the Instrument Hard Disk
(Options 06/07) 4--9..............................................
Restoring the Hard Disk from a Backup Image 4--10.........................
Removal and Installation Procedures 4--11.........................
Preparation 4--11.....................................................
Trim, Cabinet, and Module Removal 4--12.................................
Removal Procedures 4--15..............................................
RSA6100A Series Service Manual
i
Table of Contents
Replaceable Parts
Troubleshooting 4--21...........................................
Service Level 4--21...................................................
Check for Common Problems 4--22......................................
Diagnostics 4--25.....................................................
Replaceable Parts 5--1..........................................
Parts Ordering Information 5--1.........................................
Using the Replaceable Parts List 5--2....................................
ii
RSA6100A Series Service Manual
List of Figures
Table of Contents
Figure 2--1: RSA 6100A Series block diagram 2--5..................
Figure 4--1: Primary customer replaceable module locations 4--14......
Figure 4--2: Status indicator locations 4--23.........................
Figure 4--3: Diagnostics Power On Self Test results view 4--25.........
Figure 4--4: Diagnostics Failure Info tab 4--26.......................
Figure 4--5: Event viewer initial display 4--27.......................
Figure 4--6: Event viewer applications error view 4--28...............
Figure 4--7: Event Properties window, showing error log information 4--28
Figure 4--8: Starting Extended Diagnostics 4--29.....................
Figure 4--9: Embedded Diagnostics Interface 4--30...................
Figure 4--10: Diagnostics test iteration control 4--30..................
Figure 5--1: External parts 5--5..................................
Figure 5--2: Display, front panel, DVD, and removeable hard drive 5--7
Figure 5--3: Detail 1 of cabling shown in Figure 5--2 5--8.............
Figure 5--4: Detail 2 of cabling shown in Figure 5--2 5--9.............
Figure 5--5: Detail 3 of cabling shown in Figure 5--2 5--10.............
Figure 5--6: Modules 5--12.......................................
Figure 5--7: Detail 1 of Slot PC Cabling shown in Figure 5--6 5--13......
Figure 5--8: Detail 2 of Slot PC Cabling shown in Figure 5--6 5--14......
Figure 5--9: Detail of cabling shown in Figure 5--6 (cont.) 5--15.........
Figure 5--10: Power supply and internal hard drive 5--17.............
Figure 5--11: Detail 1 of cabling shown in Figure 5--10 5--18...........
Figure 5--12: Detail 2 of cabling shown in Figure 5--10 5--19...........
Figure 5--13: Upper and lower deck fans 5--21.......................
Figure 5--14: Detail of cabling shown in Figure 5--13 5--22.............
Figure 5--15: RF inerface board and cables 5--24....................
RSA6100A Series Service Manual
iii
Table of Contents
List of Tables
Table 2-- 1: Rear panel connectors 2--3............................
T able 4--1: External inspection check list 4--3......................
T able 4--2: Internal inspection check list 4--4......................
Table 4--3: Tools required for module removal 4--12.................
Table 4--4: Legend for Table 4--5 4--13.............................
Table 4-- 5: Accessing modules 4--13...............................
Table 4--6: Power Conversion Board Connectors 4--18...............
Table 4--7: Failure symptoms and possible causes 4--22...............
T able 4--8: Power converter boardstatus indicators 4--24.............
Table 4--9: Digital interface board status indicators 4--24.............
Table 4--10: Diagnostic Error Messages 4--31.......................
iv
RSA6100A Series Service Manual
General Safety Summary
Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it.
To avoid potential hazards, use this product only as specified.
Only qualified personnel should perform service procedures.
While using this product, you may need to access other parts of a larger system.
Read the safety sections of the other component manuals for warnings and
cautions related to operating the system.
ToAvoidFireor
Personal Injury
Use Proper Power Cord. Use only the power cord specified for this product and
certified for the country of use.
Ground the Product. This product is grounded through the grounding conductor
of the power cord. To avoid electric shock, the grounding conductor must be
connected to earth ground. Before making connections to the input or output
terminals of the product, ensure that the product is properly grounded.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings
and markings on the product. Consult the product manual for further ratings
information before making connections to the product.
The inputs are not rated for connection to mains or Category II, III, or IV
circuits.
Power Disconnect. The power cord disconnects the product from the power
source. Do not block the power cord; it must remain accessible to the user at all
times.
Do Not Operate Without Covers. Do not operate this product with covers or panels
removed.
Do Not Operate With Suspected Failures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.
Avoid Exposed Circuitry. Do not touch exposed connections and components
when power is present.
Replace Batteries Properly. Replace batteries only with the specified type and
rating.
Use Proper Fuse. Use only the fuse type and rating specified for this product.
Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive At mosphere.
Keep Product Surfaces Clean and Dry.
RSA6100A Series Service Manual
v
General Safety Summary
Provide Proper Ventilation. Refer to the manual’s installation instructions for
details on installing the product so it has proper ventilation.
Terms in this Manual
Symbols and Terms
on the Product
These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.
These terms may appear on the product:
H DANGER indicates an injury hazard immediately accessible as you read the
marking.
H WARNING indicates an injury hazard not immediately accessible as you
read the marking.
H CAUTION indicates a hazard to property including the product.
The following symbol(s) may appear on the product:
CAUTION
Refer to Manual
vi
Protective Ground
(Earth) Terminal
Chassis Ground
Standby
RSA6100A Series Service Manual
Service Safety Summary
Only qualified personnel should perform service procedures. Read this Service
Safety Summary and the General Safety Summary before performing any service
procedures.
Do Not Service Alone. Do not perform internal service or adjustments of this
product unless another person capable of rendering first aid and resuscitation is
present.
Disconnect Power. To avoid electric shock, switch off the instrument power, then
disconnect the power cord from the mains power.
Use Care When Servicing With Power On. Dangerous voltages or currents may
exist in this product. Disconnect power, remove battery (if applicable), and
disconnect test leads before removing protective panels, soldering, or replacing
components.
To avoid electric shock, do not touch exposed connections.
RSA6100A Series Service Manual
vii
Service Safety Summary
viii
RSA6100A Series Service Manual
Preface
Manual Content
Manual Conventions
This is the service manual for the RSA6100A Series Real-time Spectrum
Analyzers.
Read this preface to learn how this manual is structured, what conventions it
uses, and where you can find other information related to servicing this product.
This manual contains only information related to servicing an RSA6100A Series
Real-time Spectrum Analyzer. For information related to installing and operating
the instrument or for a list of instrument specifications, refer to the appropriate
user document as described in Related User Documents on the following page.
Be sure to read the introductions to all procedures. These introductions provide
important information needed to perform the service correctly, safely, and
efficiently.
Module
Plug-in Module
Replaceable Parts
Safety
This manual uses certain conventions that you should become familiar with
before attempting service.
The term module refers to a collection of items that are replaceable as a unit. A
module may contain electrical and mechanical assemblies, circuit boards, and
interconnecting cables.
The term Plug--in Module refers to the units that plug into the Main Digital
Interface board.
This manual refers to any field-replaceable assembly or mechanical part by its
name or generically as a replaceable part. In general, a replaceable part is any
circuit board or assembly that is listed in the Replaceable Parts section.
Symbols and terms related to safety appear in the General Safety Summary
found at the beginning of this manual. Be sure to read both the General Safety
Summary and Service Safety Summary before performing any service to this
instrument.
RSA6100A Series Service Manual
ix
Preface
Related User Documents
The following related English user documents are available if you need more
information about operating the instrument. These documents are located on the
RSA6100A Series Real-time Spectrum Analyzer User Documentation CD-ROM
or can be downloaded from the Tektronix Web site (www.tektronix.com).
H RSA6100A Series Real-time Spectrum Analyzer Quick Start User Manual.
H RSA6100A Series Real-time Spectrum Analyzer Series Specifications and
This document provides the basic information you need to install and operate
the instrument. Included is a listing of the options and accesories available
for the instrument.
Performance Verification Technical Reference (English). Contains the
following technical information about the instrument:
H Electrical and physical specifications, including a list of certifications
and compliances.
H A performance verification procedure to check instrument performance
against guaranteed specifications.
H RSA6100A Series Real-time Spectrum Analyzer Programmer Manual
(English). Describes the GPIB instrument programming commands and
interface.
H RSA6100A Series Real-time Spectrum Analyzer Security and Declassifica-
tion Instructions (English). Provides instruction on how customers with data
security concerns can sanitize or remove memory devices from the instrument.
x
RSA6100A Series Service Manual
Operating Information
Operating Information
For information on installing and operating your RSA6100A Series Real-time
Spectrum Analyzer, refer to the Quick Start User Manual.
RSA6100A Series Service Manual
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Operating Information
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RSA6100A Series Service Manual
Theory of Operation
Theory of Operation
This section provides a basic description of the Real-Time Spectrum Analyzer
(RTSA) operation. See Figure 2--1 on page 2--5 for a block diagram of the
instrument.
General
A processor system controls the RSA6100A instrument. The instrument features
an XGA resolution flat-panel display, a transparent touch-screen, and a frontpanel with direct access to commonly used RTSA features. You can also use the
RTSA with a mouse or other pointing device, and/or a keyboard.
The RTSA uses the Microsoft Windows XP operating system.
Signal Path and Processing
RF Signal Path
Acquisition System
Processor System
An RF signal enters the RTSA through a direct coaxial connection (N--type) to
the input connector.
The RF signal path conditions the input signals and passes them to the acquisition system for sampling and processing. The RF signal path consists of three
frequency conversion stages, band--limiting filters, and signal level adjustment
stages. The purpose of the RF signal path is to translate a band--limited replica of
a portion of the input signal range (9 kHz to 6.2 GHz for the RSA6106A, 9 kHz
to 14 GHz for the RSA6114A) to a intermediate frequency (IF) where it can be
sampled by a high dynamic range A/D.
Control of the RF signal path is performed by the processor system.
The acquisition system samples the IF signal and converts it to digital signals.
This digital signals are then filtered numerically and processed either for direct
display or by measurement applications to provide metrics of signal quality to
the user. The acquisition data processing is performed by one of several
field--programmable gate arrays (FPGAs) under control of the processor. The
processor performs measurement applications.
The processor system consists of a PCI--based processor board and a digital
interface board that connects the processor to the acquisition boards.
RSA6100A Series Service Manual
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Theory of Operation
Trigger Inputs
Display Panel
Display system
Touch Panel
There are two coaxial trigger inputs. One is on the front panel below the display
and the other is on the rear panel. Both trigger inputs connect directly to the
digital interface board. Trigger signals are processed by an FPGA on the digital
interface board. The information from the trigger system is combined with
acquisition data by the processor system.
The Trigger Out signal is accessed below the display with a coaxial connection.
The trigger out signal comes from the Acquisition Control FPGA via the digital
interface board.
Waveforms, spectral traces, measurement results, and control menus are
displayed on a 10.4 inch, color, active--matrix LCD display with touch panel.
The display system consists of a display adapter board and inverter board, which
sends text and waveform information to the display panel.
The display adapter board sends information from the touch panel to the
processor. The touch panel appears as a USB HID device in the Window Device
Manager tool.
Front Panel
Rear Panel
The processor system reads the front--panel switches and encoder. Any changes
in their settings are reported to the processor. The processor also turns the LEDs
on and off.
The ON/STBY switch passes through the display adapter board, the digital
interface board, and to the processor on the front panel board.
Communication between the processor system and the front panel is performed
over an internal USB connection.
The CD--R drive, optional DVD--RW, or removable HDD, communicate over an
IDE connection directly to the processor system.
Table 2--1 describes the connectors available on the RTSA rear panel.
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RSA6100A Series Service Manual
Theory of Operation
Table 2- 1: Rear panel connectors
Name Input or Output Connector Type Description
Reference In Input BNC External time-base reference. See data sheet for signal quality
requirements.
Reference Out Output BNC 10 MHz output or loop--through of user Reference In signal
TekLinkt Input/Output Proprietary 40--pin TekLinkt multi--instrument interface connector
LAN Input/Output RJ--45 10/100/1000baseT Ethernet connector
USB Input/Output USB Two USB 2.0 connectors
Keyboard Input PS/2 Keyboard-only PS/2 connector
VGA Output D--Sub External monitor connector
Serial Input/Output D--Sub Serial communications port (COM2) to processor system
Trigger In Input BNC TTL Gate/trigger input signal
Headset Output 2.5 mm stereo External headphone connection
+28 V Output BNC Noise source drive power
GPIB Input/Output IEEE--488 General Purpose Interface Bus
IF Output Output BNC 500 MHz Analog IF Output signal (Option 05)
Digital I/Q Output 2x50 Two connectors for digital I and Q output signals. (Option 05)
Power Supply
Fans
All connections except the IF Output and Digital I/Q are connected directly to
the digital interface board. The IF Output and Digital I/Q outputs are connected
to the Real--Time I/Q (RTIQ) option board.
The Power Conversion board provides instrument power. The Power Conversion
board consists of several switching supplies that translate and balance the power
taken from the power supply module.
Power is distributed from the Power Conversion board to both the RF Deck and
the Digital Interface board.
The ON/STBY switch, located on the front panel, controls all of the power to the
instrument except for the part of the circuitry in the standby power supply.
Seven individual fans provide cooling to the RTSA. Three fans are dedicated to
the RF Deck and are controlled by the RF Interface. Two fans provide cooling
for the digital side of the instrument.
RSA6100A Series Service Manual
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Theory of Operation
The bulk power supply module has an internal fan. Control signals to the power
supply fan are sent through the Power Conversion board from the Digital
Interface board.
A seventh fan is resident on the processor board heat sink, and is controlled by
the Slot PC board.
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RSA6100A Series Service Manual
Option Slot 4
Option Slot 3 -- RTIQ Output Board
Option Slot 2 -- Narrowband Acq Board
Option Slot 1 -- Wideband Acq Board
Touch
Panel
Display
Panel
IF
Out
Inverter
Board
USB 2.0
USB 1.1
I/Q
Out
Display Adapter
Board
Front Panel
Local Bus
CD--R,
DVD-RW, or
RHDD
Internal HDD
Digital Interface Board
Acquisition Memory
Theory of Operation
PICMG Processor Board
Pentium M / 855GME
GPIB
LAN
Keyboard
USB
Headphones
Serial
VGA
Tek L i nkt
+28 V
Trigger Out (front panel)
Trigger In (front panel)
Trigger In (rear panel)
Reference Out
Reference In
RF Input
Figure 2- 1: RSA 6100A Series block diagram
RF
Fans
RF Interface
Board
RF Signal Path (Multiple Modules)
1st Converter
Module
2nd Converter
Module
1st LO ModuleRF Attenuator
3rd IF Module 14 GHz Extension RF Switches
Reference
Oscillator Module
Power
Conversion
Board
4GHzIF
Module
Bulk Power
Supply
Preamplifier
RSA6100A Series Service Manual
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Theory of Operation
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RSA6100A Series Service Manual
Adjustment Procedure
Adjustment Procedure
There are no physical user adjustment procedures for the RSA6100A Series
instruments. However, you can run Alignments from the RSA6100A Series
application. Alignments are software-controlled adjustment procedures.
Running Alignments
Alignments are adjustment procedures run by the instrument using internal
reference signals and measurements, and do not require any external equipment
or connections.
There are two settings for Alignments:
H Automatically align as needed (Auto mode)
H Run alignments only when the “Align Now” button is pressed
If Automatically align as needed is selected, alignments run whenever the
spectrum analyzer detects a sufficient change in ambient conditions to warrant an
alignment.
Alignment Status
Initiating an Alignment
If Run alignments only when “Align Now” button is pressed is selected, the
spectrum analyzer never runs an alignment unless you manually initiate an
alignment using the Align Now button.
NOTE. There are a few critical adjustments that must run occasionally even if
Automatically align as needed is not enabled.
When the spectrum analyzer needs to run an alignment, it displays a message on
screen. If no message is displayed, you can assume that the spectrum analyzer is
properly aligned.
To initiate an alignment:
1. Select Setup > Alignments.
2. Select the Align Now button.
The spectrum analyzer will run an alignment procedure. Status messages are
displayed while the alignment procedure is running. If the instrument fails the
alignment procedure, an error message will be displayed. If the instrument fails
RSA6100A Series Service Manual
3- 1
Adjustment Procedure
an alignment, run Diagnostics (Tools > Diagnostics) to see if you can determine
why the alignment failed.
NOTE. While an alignment is running, both the IF and IQ outputs are disabled.
Alignments During
Warm-Up
Alignments During Normal
Operation
Alignments Are Not
Calibrations
During the warm--up period, the spectrum analyzer will run alignments relatively
frequently as it warms to operating temperature (if Auto mode is selected).
During the specified period for warm-up, the instrument performance is not
warranted.
Once the spectrum analyzer reaches operating temperature, alignments will run
less frequently than during the warm-up period. If an alignment becomes
necessary during a measurement cycle (if Auto mode is selected), the measurement is aborted and an alignment procedure is run. Once an alignment procedure
is completed, the measurement cycle restarts.
Alignments are adjustment procedures run by the instrument using internal
reference signals and measurements. Calibrations can only be performed at a
Tektronix service center and require the use of traceable test equipment (signal
sources and measuring equipment) to verify the performance of the instrument.
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RSA6100A Series Service Manual
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