Tektronix CSA8000 Series User manual

Service Manual
CSA8000 Series
Communications Signal Analyzers,
TDS8000 Series
Digital Sampling Oscilloscopes,
and Modules
071-0438-07
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

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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 privileges 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:
HIn North America, call 1-800-833-9200.
HWorldwide, 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 the defect before the expiration 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 PARTICULAR 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.

CSA8000 & TDS8000 Series Instruments and Modules i
Table of Contents
General Safety Summary ix...................................
Service Safety Summary xi....................................
Preface xiii...................................................
Manual Structure xiii................................................
Manual Conventions xiii..............................................
Related Documentation xiv...........................................
Operating Information
Installation 1--1...............................................
Check the Environmental Requirements 1--1..............................
Site Considerations 1--1...........................................
Operating Requirements 1--1.......................................
Rackmount Requirements 1--2......................................
Install the Sampling Modules 1--2.......................................
Check Your Sampling Module Manual(s) 1--2..........................
Maximum Configuration 1--3.......................................
Connect the Peripherals 1--3...........................................
Power On the Instrument 1--5..........................................
Powering Off the Instrument 1--6.......................................
Software Installation 1--7..............................................
Description 1--7.................................................
Software Release Notes 1--7........................................
Operating System Reinstallation 1--7.................................
System Hard Drive Rebuild 1--8....................................
System Diagnostics 1--8...........................................
Windows Safe Mode 1--8..........................................
Theory of Operation
Theory of Operation 2--1.......................................
Logic Conventions 2--1...............................................
Mainframe Overview 2--1.............................................
Input Signal Path 2--1.............................................
Display Panel 2--2................................................
Front Panel 2--2..................................................
Rear Panel 2--2..................................................
Low Voltage Power Supply 2--2.....................................
Fans 2--3.......................................................
Electrical Sampling Modules Overview 2--3..............................
80E01, 80E02, 80E03, 80E06, 80E07, and 80E09 Sampling Modules 2--3...
80E04, 80E08, and 80E10 TDR/Sampling Modules 2--4.................

Table of Contents
ii CSA8000 & TDS8000 Series Instruments and Modules
Optical Sampling Modules Overview 2--5................................
80C01 Optical Sampling Module 2--7................................
80C02 Optical Sampling Module 2--7................................
80C03 Optical Sampling Module 2--8................................
80C04 Optical Sampling Module 2--8................................
80C05 Optical Sampling Module 2--9................................
80C06 Optical Sampling Module 2--9................................
80C07 Optical Sampling Module 2--9................................
80C07B Optical Sampling Module 2--10...............................
80C08 Optical Sampling Module 2--10................................
80C08B Optical Sampling Module 2--10...............................
80C08C Optical Sampling Module 2--11...............................
80C09 Optical Sampling Module 2--11................................
80C10 Optical Sampling Module 2--11................................
80C11 Optical Sampling Module 2--12................................
80C12 Optical Sampling Module 2--12................................
80A01 Trigger Prescale Preamplifier Module 2--12..........................
80A02 EOS/ESD Protection Module 2--13.................................
80A05 Electrical Clock Recovery Module 2--13............................
80A06 PatternSync Trigger Module 2--14.................................
82A04 Phase Reference Module 2--14....................................
Adjustment Procedures
Adjustment Interval 3--1..............................................
Adjustment Environment 3--1..........................................
Adjustment After Repair 3--1..........................................
Required Equipment 3--2..............................................
Instrumentation Setup 3--2.............................................
Main Instrument Adjustments 3--3......................................
DC Calibrator Adjust 3--3..........................................
DC Calibrator Adjust Verification 3--4...............................
Internal 10 MHz Adjust 3--5........................................
Maintenance
Preventing ESD 4--1.................................................
Inspection and Cleaning 4--2...........................................
General Care 4--2................................................
Flat Panel Display Cleaning 4--2....................................
Exterior 4--3....................................................
Interior 4--4.....................................................
Removal and Installation Procedures 4--7.........................
Preparation 4--7.....................................................
Procedures for External Modules 4--9....................................
Front-Panel Knobs 4--9............................................
Trim and Carrying Handle 4--10.....................................
Bottom Cover 4--11...............................................
Covers 4--13.....................................................
Line Fuses and AC power cord connector 4--16.........................

Table of Contents
CSA8000 & TDS8000 Series Instruments and Modules iii
Procedures for Modules 4--21...........................................
Front Panel Assembly 4--21.........................................
Front Panel Board 4--23............................................
Front Panel Keypad 4--24...........................................
Display Assembly 4--25............................................
Display Adapter Board 4--27........................................
Standby/On Switch Flex Circuit Removal 4--29.........................
Floppy Disk Drive 4--31............................................
Hard Disk Drive 4--32.............................................
CD Drive 4--34...................................................
Fan Assembly Removal 4--35........................................
Front and Rear Power Distribution Boards 4--37.........................
Low-Voltage Power Supply 4--38.....................................
NLX Board 4--40.................................................
Microprocessor 4--43..............................................
PC Processor Board 4--45...........................................
Acquisition Assembly 4--47.........................................
Large Module Interface Circuit Board 4--53............................
Module Slot Doors 4--55...........................................
Electrical Modules 4--64............................................
Exchanging the Electrical Sampling Module 4--65..........................
Replacing the sampling module chassis 4--65...........................
Reinstalling exchange module serial number 4--65.......................
Optical Modules 4--66.............................................
80A00 and 82A00 Series Modules 4--67...............................
Troubleshooting 4--69...........................................
Check for Common Problems 4--69......................................
Equipment Required 4--72..............................................
Isolating Failures between the 80E0X/80C0X Modules or the Mainframe 4--72...
Isolating to a Board if Power Will Not Come Up 4--73....................
Checking the Power Supply Voltages 4--74...............................
If the instrument Will Not Boot 4--75.................................
Booting Into Windows 4--76.........................................
PPC and NLX PC Diagnostics 4--76......................................
Power-On Diagnostics 4--76.........................................
QAPlus/Win 4--76.................................................
Diagnostics 4--77.................................................
Firmware Updates 4--77................................................
After Repair 4--78....................................................
Installing the Instrument Model and Serial Number 4--78.....................
Update/Restore the NLX Board CMOS 4--79...............................
Repackaging Instructions 4--81...................................
Packaging 4--81......................................................
Shipping to the Service Center 4--81......................................
Diagrams
Symbols 5--1.......................................................
CSA8000 and TDS8000 Series Block Diagram 5--2.........................
Electrical Sampling Modules Block Diagram 5--3..........................
Optical Sampling Modules Block Diagrams 5--4...........................
80A01 Block Diagram 5--26............................................

Table of Contents
iv CSA8000 & TDS8000 Series Instruments and Modules
80A02 Block Diagram 5--27............................................
80A05 Block Diagram 5--28............................................
80A06 Block Diagram 5--29............................................
82A04 Block Diagram 5--30............................................
Replaceable Parts
Replaceable Parts List 6--1......................................
Parts Ordering Information 6--1.........................................
Module Servicing 6--1............................................
Using the Replaceable Parts List 6--2....................................

Table of Contents
CSA8000 & TDS8000 Series Instruments and Modules v
List of Figures
Figure 1--1: Compartments for sampling modules 1--2...............
Figure 1--2: Locations of peripheral connectors on rear panel 1--4.....
Figure 1--3: Line fuse and power cord connector locations,
rear panel 1--5.............................................
Figure 1--4: On/Standby switch location 1--6.......................
Figure 3--1: Adjustment setup using the DMM 3--3..................
Figure 3--2: Adjustment setup using the signal generator 3--5.........
Figure 4--1: Knob removal 4--9..................................
Figure 4--2: Trim removal 4--11...................................
Figure 4--3: Bottom cover removal 4--12............................
Figure 4--4: Cover removal 4--14..................................
Figure 4--5: Cover removal 4--15..................................
Figure 4--6: Line fuses and line cord removal 4--17...................
Figure 4--7: External modules 4--18................................
Figure 4--8: Internal modules 4--19................................
Figure 4--9: Acquisition modules 4--20.............................
Figure 4--10: Front panel assembly removal 4--22....................
Figure 4--11: J1 flex cable connector removal 4--23...................
Figure 4--12: Front panel board and keyboard removal 4--24..........
Figure 4--13: Display removal 4--26................................
Figure 4--14: Touch panel and LCD assembly removal 4--27...........
Figure 4--15: Display adaptor board removal 4--28...................
Figure 4--16: Connector clip assembly 4--28.........................
Figure 4--17: Standby/On switch flex circuit removal 4--30............
Figure 4--18: Floppy disk drive removal 4--31.......................
Figure 4--19: Hard drive disk removal 4--33.........................
Figure 4--20: Removing the hard disk drive from the cartridge 4--33....
Figure 4--21: CD drive and bracket removal 4--35....................
Figure 4--22: Fan assembly removal 4--36...........................
Figure 4--23: Front and rear power distribution board removal 4--37...
Figure 4--24: Low-voltage power supply removal 4--39................
Figure 4--25: NLX assembly removal 4--41..........................
Figure 4--26: Riser adapter and NLX board removal 4--42............
Figure 4--27: Microprocessor removal 4--44.........................

Table of Contents
vi CSA8000 & TDS8000 Series Instruments and Modules
Figure 4--28: Processor board removal 4--46........................
Figure 4--29: T-10 screws and threaded posts 4--48...................
Figure 4--30: Thermal cover removal (8200 only) 4--49................
Figure 4--31: Acquisition circuit board assembly removal (8000) 4--50...
Figure 4--32: Acquisition circuit board assembly removal (8000B) 4--51.
Figure 4--33: Acquisition circuit board assembly removal (8200) 4--52...
Figure 4--34: Large module interface circuit board removal
(8000 and 8000B) 4--54.......................................
Figure 4--35: Large module interface circuit board removal (8200) 4--55.
Figure 4--36: Small and Large module chassis removal 4--57...........
Figure 4--37: Module door spring removal 4--59.....................
Figure 4--38: Module slot door removal 4--60........................
Figure 4--39: Module ejector handles removal 4--62..................
Figure 4--40: Spring arm position 4--63............................
Figure 4--41: Electrical module hardware removal 4--64..............
Figure 4--42: Optical module cover removal 4--66....................
Figure 4--43: 80A00 and 82A00 series parts removal
(80A01 shown) 4--67.........................................
Figure 4--44: Location of power-on and over current LEDs 4--73.......
Figure 4--45: Location of debug pins 4--74..........................
Figure 4--46: Connectors J1 and J2 4--75...........................
Figure 5--1: Block diagram for CSA8000 and TDS8000
Series Instruments 5--2......................................
Figure 5--2: Block diagram for the 80E00 Series Electrical
Sampling Modules 5--3......................................
Figure 5--3: 80C01 Optical sampling block diagram 5--4.............
Figure 5--4: 80C01 Optical sampling with clock recovery block
diagram 5--5..............................................
Figure 5--5: 80C02 Optical sampling block diagram 5--6.............
Figure 5--6: 80C02 Optical sampling with clock recovery block
diagram 5--7..............................................
Figure 5--7: 80C03 Optical sampling block diagram 5--8.............
Figure 5--8: 80C03 Optical sampling with clock recovery block
diagram 5--9..............................................
Figure 5--9: 80C04 Optical sampling block diagram 5--10.............
Figure 5--10: 80C04 Optical sampling block diagram with clock
recovery 5--11..............................................
Figure 5--11: 80C05 Optical sampling block diagram 5--12............
Figure 5--12: 80C06 Optical sampling block diagram 5--13............

Table of Contents
CSA8000 & TDS8000 Series Instruments and Modules vii
Figure 5--13: 80C07 and 80C07B Optical sampling block diagram 5--14.
Figure 5--14: 80C07 and 80C07B Optical sampling with CR1 clock
recovery block diagram 5--15.................................
Figure 5--15: 80C08/80C08B/80C08C Optical sampling block
diagram 5--16..............................................
Figure 5--16: 80C08/80C08B/80C08C Optical sampling with CR1,
CR2, & CR4 clock recovery block diagram 5--17.................
Figure 5--17: 80C09 Optical sampling block diagram 5--18............
Figure 5--18: 80C09 Optical sampling with CR1 clock recovery
block diagram 5--19.........................................
Figure 5--19: 80C10 Optical sampling block diagram 5--20............
Figure 5--20: 80C11 Optical sampling block diagram 5--21............
Figure 5--21: 80C11 Optical sampling with CR1 clock recovery
option block diagram 5--22...................................
Figure 5--22: 80C11 Optical sampling with CR2 and CR3 clock
recovery option block diagram 5--23...........................
Figure 5--23: 80C11 Optical sampling with CR4 clock recovery
option block diagram 5--24...................................
Figure 5--24: 80C12 Optical sampling block diagram 5--25............
Figure 5--25: 80A01 block diagram 5--26...........................
Figure 5--26: 80A02 block diagram 5--27...........................
Figure 5--27: 80A05 block diagram 5--28...........................
Figure 5--28: 80A06 block diagram 5--29...........................
Figure 5--29: 82A04 block diagram 5--30...........................
Figure 6--1: External parts 6--4..................................
Figure 6--2: Front panel and drives 6--7...........................
Figure 6--3: Power supply 6--10...................................
Figure 6--4: Acquisition 6--12.....................................
Figure 6--5: 8000 and 8000B coaxial cables 6--14.....................
Figure 6--6: 8200 coaxial cables 6--16..............................
Figure 6--7: 80E01, 80E02, 80E03, and 80E04 modules 6--18...........
Figure 6--8: 80E05 module (Option 10G shown) 6--19................
Figure 6--9: 80E06 module 6--20..................................
Figure 6--10: 80E07, 80E08, 80E09, and 80E10 modules 6--21..........
Figure 6--11: Optical modules 6--22................................
Figure 6--12: 80A01 module 6--23.................................
Figure 6--13: 82A04 module 6--24.................................
Figure 6--14: 80A06 module 6--26.................................

Table of Contents
viii CSA8000 & TDS8000 Series Instruments and Modules
List of Tables
Table 1--1: Additional accessory connection information 1--3.........
Table 1--2: Line fuses 1--5......................................
Table 2--1: Module optical/electrical split 2--6......................
Table 3--1: Adjustments required for module replaced 3--1...........
Table 3--2: Required equipment and materials 3--2.................
Table 4--1: External inspection check list 4--3......................
Table 4--2: Internal inspection check list 4--4......................
Table 4--3: Tools required for module removal 4--8.................
Table 4--4: Failure symptoms and possible causes 4--69...............
Table 4--5: Power supply voltages 4--75............................
Table 4--6: Action required for module replaced 4--78................

CSA8000 & TDS8000 Series Instruments and Modules ix
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 the system. Read
the General Safety Summary in other system manuals for warnings and cautions
related to operating the system.
Use Proper Power Cord. Use only the power cord specified for this product and
certified for the country of use. Power cord needed only in the mainframe, not
modules.
Connect and Disconnect Properly. Do not connect or disconnect probes or test
leads while they are connected to a voltage source.
Ground the Product. The mainframe 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.
Ground the Product. The modules are indirectly grounded through the grounding
conductor of the mainframe 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.
Do not apply a potential to any terminal, including the common terminal, that
exceeds the maximum rating of that terminal.
Do Not Operate Without Covers. Do not operate this product with covers or panels
removed.
Use Proper Fuse. Use only the fuse type and rating specified for this product.
Avoid Exposed Circuitry. Do not touch exposed connections and components
when power is present.
Wear Eye Protection. Wear eye protection if exposure to high-intensity rays or
laser radiation exists.
Do Not Operate With Suspected Failures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.
ToAvoidFireor
Personal Injury

General Safety Summary
xCSA8000 & TDS8000 Series Instruments and Modules
Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive Atmosphere.
Keep Product Surfaces Clean and Dry.
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. 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.
Terms on the Product. These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read the
marking.
WARNING indicates an injury hazard not immediately accessible as you read the
marking.
CAUTION indicates a hazard to property including the product.
Symbols on the Product. The following symbols may appear on the product:
CAUTION
Refer to Manual
WARNING
High Voltage
Protective Ground
(Earth) Terminal
Mains Disconnected
OFF (Power)
Mains Connected
ON (Power) Standby
Symbols and Terms

CSA8000 & TDS8000 Series Instruments and Modules xi
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.

Service Safety Summary
xii CSA8000 & TDS8000 Series Instruments and Modules

CSA8000 & TDS8000 Series Instruments and Modules xiii
Preface
This is the service manual for the:
HCSA8000, CSA8000B, and CSA8200 Communications Signal Analyzers
HTDS8000, TDS8000B, and TDS8200 Digital Sampling Oscilloscopes
Hmodules that install in the instruments (except the 80A03 module)
NOTE. The 80A03 instruction manual contains its own specifications and
servicing information.
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.
Read the Introduction following this preface for safety and other important
background information needed before servicing this product.
Manual Structure
This manual is divided into chapters, which are made up of related subordinate
topics. These topics can be cross referenced as sections.
Be sure to read the introductions to all procedures. These introductions provide
important information needed to do the service correctly, safely, and efficiently.
Manual Conventions
This manual uses certain conventions that you should become familiar with
before attempting service.
Throughout this manual, the term module appears.A module is composed of
electrical and mechanical assemblies, circuit cards, interconnecting cables, and a
user-accessible front panel. References to a module are different than references
to products such as “Sampling modules”. “Phase Reference modules”, or
“Accessory modules” which are products installed in the instrument compart-
ments.
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, such as a hard disk drive, or a mechanical part, such as
I/O port connectors, that is listed in the replaceable parts list of Chapter 8.
Symbols and terms related to safety appear in the General Safety Summary found
at the beginning of this manual.
Modules
Replaceable Parts
Safety

Preface
xiv CSA8000 & TDS8000 Series Instruments and Modules
Related Documentation
The following documents relate to the instruments this service manual supports:
HCSA8200 and TDS8200 Quick Start User manual. Tektronix part number
071-1482-XX. This document also contains specification changes when
using the 82A04 Phase Reference module.
HCSA8000 and TDS8000 Specifications and Performance Verification
manual. Tektronix part number 071-xxxx-XX.
HCSA8000 and TDS8000 Online Help. Installed with the application software
and accessed from the instrument Help menu.
HCSA8000 & TDS8000 Programmer Guide. An online document accessed
from the instrument Help menu.
H80E01, 80E02, 80E03, 80E04, and 80E06 Electrical Sampling Modules
User manual. Tektronix part number 071-0434-XX.
H80E07, 80E08, 80E09, and 80E10 Electrical Sampling Remote Modules
User manual. Tektronix part number 071-2038--XX.
H80C00 Series Optical Sampling Modules User manual.Tektronix part
number 071-0435-XX.
H80A01 Trigger Prescale Limiting Preamplifier Module User manual.
Tektronix part number 071-0873-XX.
H80A02 EOS/ESD Protection Module Instructions. Tektronix part number
071-1317-XX
H80A03 TekConnect Probe Interface Module Instructions. Tektronix part
number 071-1298-XX.
H80A05 Electrical Clock Recovery Module User manual. Tektronix part
number 071-1467-XX.
H80A06 PatternSync Trigger Module Instructions. Tektronix part number
071-xxx-XX.
HCSA8000/TDS8000 Rackmount Kit Instructions. Tektronix part number
071-0696-XX.
HTDR Z-Meas Application Online Help. Ships with this product on a separate
CD. Provides information about this TDR Impedance Measuring application
that implements the TDR calibration procedures specified by the
IPC TM-650 test method.
HFast NRZ Application Online Help. Ships with this product on a separate
CD. Provides information about this application that improves throughput
for optical eye-pattern mask testing.

Operating Information