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

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 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............