Tektronix TDS8000, CSA8000 Service Manual

Service Manual

CSA8000 Series Communications Signal Analyzers TDS8000 Series Digital Sampling Oscilloscopes

071-0438-04

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.

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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 pri ce change privileges reserved.

Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

WARRANTY

Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of one (1) year from the date of shipment. If this product proves defective during its warranty period, Tektronix, at its option, will either repair the defective product without c harge for parts and labor, or provide a replacement in exchange for the defective product.

This warranty applies only to products returned to the designated Tektronix depot or the Tektronix authorized representative from which the product was originally purchased. For products returned to other locations, Customer will be assessed an applicable service charge. The preceding limitation shall not apply within the European Economic Area, where products may be returned for warranty service to the nearest designated service depot regardless of the place of purchase.

In order to obtain service under this warranty, Customer must provide the applicable office of Tektronix or its authorized representative with notice 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 or its representative, with shipping charges prepaid. Tektronix or its representative shall pay for the return of the product to Customer. Customer shall be responsible for paying any associated taxes or duties.

This warranty shall not apply to any defe ct, 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 consumables;

d) to re pair 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; or

e) to repair damage or malfunction resulting from failure to perform user maintenance and cleaning at the frequency and

as prescribed in the user manual (if applicable).

THE ABOVE WARRANTIES ARE GIVEN BY TEKTRONIX WITH RESPECT TO THIS 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.

System Specifications

Installation

General Safety Summary xv...................................

Service Safety Summary xvii....................................

Preface xix...................................................

Manual Structure xix................................................

Manual Conventions xix..............................................

Related Documentation xx...........................................

Contacting Tektronix xxi.............................................

Certifications 1--11...................................................

80E00 Electrical Sampling Modules Specifications 1--13..............

80C00 Optical Sampling Modules Specifications 1--19................

80A01 Trigger Prescale Preamplifier Module Specifications 1--57......

Check the Environmental Requirements 2--1..............................

Site Considerations 2--1...........................................

Operating Requirements 2--1.......................................

Rackmount Requirements 2--2......................................

Install the Sampling Modules 2--2.......................................

Check Your Sampling Module Manual(s) 2--2..........................

Maximum Configuration 2--3.......................................

Connect the Peripherals 2--4...........................................

Power On the Instrument 2--6..........................................

Powering Off the Instrument 2--7.......................................

Software Installation 2--8..............................................

Description 2--8.................................................

Software Release Notes 2--8........................................

Operating System Reinstallation 2--8.................................

System Diagnostics 2--9...........................................

Windows Safe Mode 2--10..........................................

Operating Instructions 2--11.....................................

Documentation Map 2--12..............................................

User Interface Map -- Compl ete Control and Display 2--14....................

Front Panel Map -- Quick Access to Most Often Used Features 2--15............

Display Map -- Single Graticule View 2--16................................

Front Panel I/O Map 2--16..............................................

Rear Panel I/O Map 2--17..............................................

How to Use Online Help 2--18..........................................

CSA8000 & TDS8000 Series Instruments and Sampling Modules

Table of Contents

Theory of Operation

80E00 Electrical Sampling Module Operation 2--24.........................

Signal Connector 2--24.............................................

Channel Selection 2--25............................................

TEKPROBE Connector 2--25........................................

TDR On Indicator 2--25............................................

80C00 Optical Sampling Module Operation 2--26...........................

Attenuating Optical Signals 2--27....................................

Channel Selection 2--27............................................

Optical Input Connector 2--27.......................................

Clock Recovery Outputs 2--28.......................................

Hold-Down Screws 2--28...........................................

80A01 Trigger Prescale Preamplifier Module Operation 2--28.................

Signal Connector 2--29.............................................

Logic Conventions 3--1...............................................

Mainframe Overview 3--1.............................................

Input Signal Path 3--1.............................................

Display Panel 3--2................................................

Front Panel 3--2..................................................

Rear Panel 3--2..................................................

Low Voltage Power Supply 3--2.....................................

Fans 3--3.......................................................

Electrical Sampling Modules Overview 3--3..............................

80E04 Electrical TDR/Sampling Module 3--4..........................

Optical Sampling Modules Overview 3--4................................

80C01 Optical Sampling Module 3--6................................

80C02 Optical Sampling Module 3--7................................

80C03 Optical Sampling Module 3--7................................

80C04 Optical Sampling Module 3--8................................

80C05 Optical Sampling Module 3--9................................

80C06 Optical Sampling Module 3--9................................

80C07 Optical Sampling Module 3--9................................

80C07B Optical Sampling Module 3--9...............................

80C08 Optical Sampling Module 3--10................................

80C08B Optical Sampling Module 3--10...............................

80C08C Optical Sampling Module 3--10...............................

80C09 Optical Sampling Module 3--11................................

80C10 Optical Sampling Module 3--11................................

80C11 Optical Sampling Module 3--11................................

80A01 Trigger Prescale Preamplifier Modules 3--12.........................

Performance Verification Procedures

Brief Procedures 4--3...........................................

Perform the Diagnostics 4--3..........................................

Perform the Compensation 4--5........................................

CSA8000 & TDS8000 Series Instruments and Sampling Modules

Table of Contents

Perform the Functional Tests 4--7.......................................

Verify Electrical Input Channels 4--7.................................

Verify Optical Input Channels 4--10...................................

Verify the Time Bases Work 4--13....................................

Perform Gated Trigger Test 4--18.....................................

Perform the Hardware and Operating System Tests 4--24.....................

QA+Win32 4--24.................................................

Checking the Cooling Fan Operation 4--25.............................

Checking the Hardware and Operating System 4--26.....................

Performance Tests 4--29.........................................

Prerequisites 4--30....................................................

Equipment Required 4--31..............................................

CSA8000/TDS8000 Test Records 4--34...................................

CSA8000/TDS8000 Main-Instrument Test Record 4--35......................

CSA8000B/TDS8000B Main-Instrument Test Record 4--36...................

80E00 Electrical Modules Test Record 4--37...............................

80C00 Optical Modules Test Record 4--42.................................

Main Instrument 4--63..........................................

Prerequisites 4--63....................................................

Time Interval Accuracy, Short--Term Optimized and Locked-to-Internal

10-MHz Reference Modes 4--64.....................................

External Direct Trigger Level Accuracy 4--67..............................

External Direct Trigger Sensitivity 4--69..................................

External Direct-Trigger Delay Jitter, Short-Term Optimized and

Locked-to-Internal 10-MHz Reference Modes 4--72......................

External Prescaled Trigger Delay Jitter, Short-Term Optimized Mode and

Locked-to-Internal 10-MHz Reference Mode 4--77......................

External Prescaled Trigger Sensitivity 4--80................................

DC Calibration Output 4--83............................................

Electrical Sampling Modules 4--85................................

Prerequisites 4--85...................................................

Input Impedance 4--86.................................................

DC Voltage Measurement Accuracy 4--88................................

Random Noise, Displayed 4--94.........................................

Rise Time (80E02, 80E03, & 80E04) 4--96................................

Analog Bandwidth (80E01) 4--99........................................

Power-Reference Characterization Setup 4--99..........................

Ref.-Characterization Measurements 4--100.............................

Adapter-Characterization Setup 4--101.................................

Adapter-Characterization Measurements 4--101..........................

80E01 Test Setup 4--104.............................................

50 MHz -- 50 GHz Analog Bandwidth (80E06) 4--107.........................

SNA & Autotester Characterization 4--107..............................

Power-Meter/Power Sensor Zero/Cal 4--109.............................

Measure the Power In 4--109.........................................

Adapter Characterization 4 --110......................................

80E06 HF Setup and Test 4--112......................................

CSA8000 & TDS8000 Series Instruments and Sampling Modules

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Table of Contents

50 GHz -- 65 GHz Analog Bandwidth (80E06) 4--117.........................

SNA & Reflectometer Characterization 4--117...........................

Power-Meter/Power Sensor Zero/Cal 4--120.............................

Measure the Power In 4--121.........................................

Adapter Characterization 4--123......................................

80E06 HF Setup and Test 4--125......................................

TDR-System Reflected Rise Time (80E04) 4--129............................

TDR-System Step Response Aberrations (80E04) 4--131......................

Optical Sampling Modules 4--137..................................

Dark Level & Vertical Equivalent Optical Noise 4--138.......................

Procedure 4--139...................................................

Minimum Optical Bandwidth & Reference Receiver Frequency Response 4--146...

80C01--80C09 and 80C11 Procedure 4--148.............................

Procedure 4--151...................................................

80C10 Procedure 4--161.............................................

Tunable Laser Requirements 4--161....................................

Integrated Rise Time and Aberrations Check 4--168..........................

Clock Recovery Optical Sensitivity Range and Recovered Clock

Timing Jitter 4--174................................................

Procedure 4--177...................................................

80A01 Trigger Prescale Limiting Preamplifier Module 4--185...........

Prerequisites 4--185....................................................

System Trigger Sensitivity 4--186.........................................

Adjustment Procedures

Maintenance

Adjustment Interval 5--1..............................................

Adjustment Environment 5--1..........................................

Adjustment After Repair 5--1..........................................

Required Equipment 5--2..............................................

Instrumentation Setup 5--2.............................................

Main Instrument Adjustments 5--3......................................

DC Calibrator Adjust 5--3..........................................

DC Calibrator Adjust Verification 5--4...............................

Internal 10 MHz Adjust 5--5........................................

Preventing ESD 6--1.................................................

Inspection and Cleaning 6--2...........................................

General Care 6--2................................................

Flat Panel Display Cleaning 6--2....................................

Exterior 6--3....................................................

Interior 6--4.....................................................

Removal and Installation Procedures 6--7.........................

Preparation 6--7.....................................................

CSA8000 & TDS8000 Series Instruments and Sampling Modules

Table of Contents

Procedures for External Modules 6--9....................................

Front-Panel Knobs 6--9............................................

Trim and Carrying Handle 6--10.....................................

Bottom Cover 6--11...............................................

Covers 6--13.....................................................

Line Fuses and AC power cord connector 6--16.........................

Procedures for Modules 6--21...........................................

Front Panel Assembly 6--21.........................................

Front Panel Board 6--23............................................

Front Panel Keypad 6--24...........................................

Display Assembly 6--25............................................

Display Adapter Board 6--27........................................

Standby/On Switch Flex Circuit Removal 6--29.........................

Floppy Disk Drive 6--31............................................

Hard Disk Drive 6--32.............................................

CD Drive 6--34...................................................

Fan Assembly Removal 6--35........................................

Front and Rear Power Distribution Boards 6--37.........................

Low-Voltage Power Supply 6--38.....................................

NLX Board 6--40.................................................

Microprocessor 6--43..............................................

PC Processor Board 6--45...........................................

Acquisition Assembly 6--47.........................................

Large Module Interface Circuit Board 6--52............................

Module Slot Doors 6 --53...........................................

Electrical Modules 6--62............................................

Exchanging the Electrical Sampling Module 6--63..........................

Replacing the sampling module chassis 6--63...........................

Reinstalling exchange module serial number 6--63.......................

Optical Modules 6--64.............................................

80A01 Module 6--65...............................................

Troubleshooting 6--67...........................................

Check for Common Problems 6--67......................................

Equipment Required 6 --70..............................................

Isolating Failures between the 80E0X/80C0X Modules or the Mainframe 6--70...

Isolating to a Board if Power Will Not Come Up 6--71....................

Checking the Power Supply Voltages 6--72...............................

If the instrument Will Not Boot 6--73.................................

Booting Into Windows 6--74.........................................

PPC and NLX PC Diagnostics 6--74......................................

Power-On Diagnostics 6--74.........................................

QAPlus/Win 6--74.................................................

Diagnostics 6--75.................................................

Firmware Updates 6--75................................................

After Repair 6--76....................................................

Installing the Instrument Model and Serial Number 6--76.....................

Update/Restore the NLX Board CMOS 6--77...............................

Repackaging Instructions 6--79...................................

Packaging 6--79......................................................

Shipping to the Service Center 6--79......................................

CSA8000 & TDS8000 Series Instruments and Sampling Modules

Table of Contents

Options and Accessories

Standard Accessories 7--2.............................................

Optional Accessories 7 --3.............................................

Options 7--4........................................................

Electrical Parts List

Electrical Parts List 8--1........................................

Diagrams

Symbols 9--1.......................................................

CSA8000 and TDS8000 Series Block Diagram 9--2.........................

Electrical Sampling Modules Block Diagram 9--3..........................

Optical Sampling Modules Block Diagrams 9--4...........................

80A01 Block Diagram 9--24............................................

Mechanical Parts List

Parts Ordering Information 10--1.........................................

Using the Replaceable Parts List 10--2....................................

Module Servicing 10--1............................................

CSA8000 & TDS8000 Series Instruments and Sampling Modules

List of Figures

Table of Contents

Figure 2--1: Compartments for sampling modules 2--3...............

Figure 2--2: Maximum inputs in three configurations 2--3............

Figure 2--3: Locations of peripheral connectors on rear panel 2--5.....

Figure 2--4: Line fuse and power cord connector locations,

rear panel 2--6.............................................

Figure 2--5: On/Standby switch location 2--7.......................

Figure 2--6: Sampling module, 80E04 shown 2--24...................

Figure 2--7: Sampling module, 80C01-CR shown 2--27................

Figure 2--8: 80A01 module front panel 2--29........................

Figure 4--1: Compensation dialog box 4--5.........................

Figure 4--2: Hookup for electrical functional tests 4--8...............

Figure 4--3: Channel button location 4 --8..........................

Figure 4--4: Channel button location 4--11..........................

Figure 4--5: Optical channel verification 4--12.......................

Figure 4--6: Hookup for the time base tests 4--13.....................

Figure 4--7: Channel button location 4--14..........................

Figure 4--8: Main time base verification 4--16.......................

Figure 4--9: Mag time base verification 4--17........................

Figure 4--10: Hookup for the gated trigger tests 4--19.................

Figure 4--11: Channel button location 4--20.........................

Figure 4--12: Signal triggered 4--21................................

Figure 4--13: Signal not triggered (signal frozen) 4--22................

Figure 4--14: Signal not triggered (no waveform) 4--23................

Figure 4--15: Signal triggered 4--24................................

Figure 4--16: Time interval accuracy test hookup 4--64...............

Figure 4--17: External direct trigger test hookup 4--67................

Figure 4--18: External direct trigger sensitivity test hookup 4--70.......

Figure 4--19: External direct trigger jitter test hookup 4--72...........

Figure 4--20: External prescaled test hookup 4--78...................

Figure 4--21: External prescaled trigger sensitivity test hookup 4--80....

Figure 4--22: Hookup for DC calibration test 4--84...................

Figure 4--23: Input impedance test hookup 4--86.....................

Figure 4--24: Vertical DC accuracy test hookup 4--89.................

Figure 4--25: Rise Time hookup 4--96..............................

CSA8000 & TDS8000 Series Instruments and Sampling Modules

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Table of Contents

Figure 4--26: Power-reference hookup 4--100.........................

Figure 4--27: Adapter characterization hookup 4--101.................

Figure 4--28: Measure reference signals 4--102........................

Figure 4--29: 80E01 reference sign als hookup 4--104...................

Figure 4--30: SNA/Autotester Characterization 4--108.................

Figure 4--31: Power-reference characterization hookup 4--109..........

Figure 4--32: Hookup to measure Power in 4--110.....................

Figure 4--33: No Adapter hookup 4--111.............................

Figure 4--34: Adapter--loss hookup 4--112...........................

Figure 4--35: 80E06 HF response hookup 4--113......................

Figure 4--36: SNA/Waveguide Characterization 4--119.................

Figure 4--37: Power-reference characterization hookup 4--121..........

Figure 4--38: Hookup to measure Power-in 4--122.....................

Figure 4--39: Adapter--loss hookup 4--124...........................

Figure 4--40: 80E06 HF response hookup 4--125......................

Figure 4--41: TDR reflected rise time hookup 4--129...................

Figure 4--42: TDR system step response aberrations hookup 4--131......

Figure 4--43: Dark level and vertical equivalent optical n oise

test hookup 4--138............................................

Figure 4--44: Minimum optical bandwidth and reference receiver

frequency response hookup 4--149..............................

Figure 4--45: Proper positioning of the impulse for optimum

curve download 4--152........................................

Figure 4--46: Hookup for heterodyne test 4--162......................

Figure 4--47: Setup used for Heterodyne sweep 4--164.................

Figure 4--48: Integrated rise time and aberrations hookup 4--169........

Figure 4--49: Clock recovery optical sensitivity range and

recovered clock timing jitter hookup 4--175.......................

Figure 4--50: Display example (clock signal not synchronized

with the data rate input) 4--180.................................

Figure 4--51: Display example (clock signal synchronized with

the data rate input) 4--183.....................................

Figure 4--52: Display example (zoomed in at the crossing point) 4--184...

Figure 4--53: 80A00 test hookup 4--187..............................

viii

Figure 5--1: Adjustment setup using the DMM 5--3..................

Figure 5--2: Adjustment setup using the signal generator 5 --5.........

Figure 6--1: Knob removal 6--9..................................

Figure 6--2: Trim removal 6--11...................................

CSA8000 & TDS8000 Series Instruments and Sampling Modules

Table of Contents

Figure 6--3: Bottom cover removal 6--12............................

Figure 6--4: Cover removal 6--14..................................

Figure 6--5: Cover removal 6--15..................................

Figure 6--6: Line fuses and line cord removal 6--17...................

Figure 6--7: External modules 6--18................................

Figure 6--8: Internal modules 6--19................................

Figure 6--9: Acquisition modules 6--20.............................

Figure 6--10: Front panel assembly removal 6--22....................

Figure 6--11: J1 flex cable connector removal 6--23...................

Figure 6--12: Front panel board & keyboard removal 6--24............

Figure 6--13: Display removal 6--26................................

Figure 6--14: Touch panel & LCD assembly removal 6--27............

Figure 6--15: Display adaptor board removal 6--28...................

Figure 6--16: Connector clip assembly 6--28.........................

Figure 6--17: Standby/On switch flex circuit removal 6--30............

Figure 6--18: Floppy disk drive removal 6--31.......................

Figure 6--19: Hard drive disk removal 6--33.........................

Figure 6--20: Removing the hard disk drive from the cartridge 6--33....

Figure 6--21: CD drive & bracket removal 6--35.....................

Figure 6--22: Fan assembly removal 6--36...........................

Figure 6--23: Front & rear power distribution board removal 6--37.....

Figure 6--24: Low-voltage power supply removal 6--39................

Figure 6--25: NLX assembly removal 6--41..........................

Figure 6--26: Riser adapter & NLX board removal 6--42..............

Figure 6--27: Microprocessor removal 6--44.........................

Figure 6--28: Processor board removal 6--46........................

Figure 6--29: T-10 screws and threaded posts 6--48...................

Figure 6--30: Acquisition circuit board assembly removal (8000) 6--50...

Figure 6--31: Acquisition circuit board assembly removal (8000B) 6--51.

Figure 6--32: Large module interface circuit board removal 6--53.......

Figure 6--33: Small and Large module chassis removal 6--55...........

Figure 6--34: Module door spring removal 6--57.....................

Figure 6--35: Module slot door removal 6--58........................

Figure 6--36: Module ejector handles removal 6--60..................

Figure 6--37: Spring arm position 6--61............................

Figure 6--38: Electrical module hardware removal 6--62..............

Figure 6--39: Optical module cover removal 6--64....................

Figure 6--40: 80A01 parts removal 6--65............................

CSA8000 & TDS8000 Series Instruments and Sampling Modules

Table of Contents

Figure 6--41: Location of power-on and over current LEDs 6--71.......

Figure 6--42: Location of debug pins 6--72..........................

Figure 6--43: Connectors J1 and J2 6--73...........................

Figure 9--1: Block diagram for CSA8000 and TDS8000 Series

Instruments 9--2...........................................

Figure 9--2: Block diagram for the 80E00 Series Electrical

Sampling Modules 9--3......................................

Figure 9--3: 80C01 Optical sampling block diagram 9--4.............

Figure 9--4: 80C01 Optical sampling with clock recovery block

diagram 9--5..............................................

Figure 9--5: 80C02 Optical sampling block diagram 9--6.............

Figure 9--6: 80C02 Optical sampling with clock recovery block

diagram 9--7..............................................

Figure 9--7: 80C03 Optical sampling block diagram 9--8.............

Figure 9--8: 80C03 Optical sampling with clock recovery block

diagram 9--9..............................................

Figure 9--9: 80C04 Optical sampling block diagram 9--10.............

Figure 9--10: 80C04 Optical sampling block diagram with

clock recovery 9--11.........................................

Figure 9--11: 80C05 Optical sampling block diagram 9--12............

Figure 9--12: 80C06 Optical sampling block diagram 9--13............

Figure 9--13: 80C07 and 80C07B Optical sampling block

diagram 9--14..............................................

Figure 9--14: 80C07 and 80C07B Optical sampling with CR1

clock recovery block diagram 9--15............................

Figure 9--15: 80C08/80C08B/80C08C Optical sampling block

diagram 9--16..............................................

Figure 9--16: 80C08/80C08B/80C08C Optical sampling with

CR1, CR2, & CR4 clock recovery block diagram 9--17............

Figure 9--17: 80C09 Optical sampling block diagram 9--18............

Figure 9--18: 80C09 Optical sampling with CR1 clock recovery

block diagram 9--19.........................................

Figure 9--19: 80C10 Optical sampling block diagram 9--20............

Figure 9--20: 80C11 Optical sampling block diagram 9--20............

Figure 9--21: 80C11 Optical sampling with CR1 clock recovery

option block diagram 9--21...................................

Figure 9--22: 80C11 Optical sampling with CR2 and CR3

clock recovery option block diagram 9--22......................

Figure 9--23: 80C11 Optical sampling with CR4 clock recovery

option block diagram 9--23...................................

CSA8000 & TDS8000 Series Instruments and Sampling Modules

Table of Contents

Figure 9--24: 80A01 block diagram 9--24...........................

Figure 10--1: External parts 10--7.................................

Figure 10--2: Front panel and drives 10--10..........................

Figure 10-- 3: Power supply 10-- 13..................................

Figure 10--4: Acquisition 10--15....................................

Figure 10--5: Coaxial cables 10--17.................................

Figure 10--6: Electrical modules (80E01, 80E02, 80E 03,

and 80E04) 10--19............................................

Figure 10--7: 80E06 module 10--20.................................

Figure 10--8: Optical modules 10--21................................

Figure 10--9: 80A01 module 10--22.................................

Figure 10--10: Accessories 10--25...................................

CSA8000 & TDS8000 Series Instruments and Sampling Modules

Table of Contents

List of Tables

Table 1--1: System -- Signal acquisition 1--1.......................

Table 1--2: System -- Timebase 1--2..............................

T a b l e 1 -- 3 : S y s t e m -- T r i g g e r 1 -- 3................................

Table 1--4: CSA8000 and TDS8000 -- Power consumption and

cooling 1--6...............................................

Table 1--5: CSA8000 and TDS8000 -- Display 1--7..................

Table 1--6: CSA8000B and TDS8000B -- Ports 1--7.................

Table 1--7: CSA8000 and TDS8000 -- Data storage 1--8..............

Table 1--8: CSA8000 and TDS8000 -- Mechanical 1--9...............

Table 1--9: System -- Environmental 1--10..........................

Table 1--10: Certifications and compliances 1--11....................

T able 1--11: Electrical sampling modules -- Descriptions 1--13.........

Table 1--12: Electrical sampling modules -- Signal acquisition 1--14....

Table 1--13: Electrical sampling module (80E04) -- TDR system 1--16...

T able 1--14: Electrical sampling modules -- Timebase system 1--17.....

Table 1--15: Electrical sampling modules -- Power consumption 1--17...

T able 1--16: Electrical sampling modules -- Mechanical 1--18..........

Table 1--17: Optical modules -- Descriptions 1--20...................

Table 1--18: Optical modules -- Acquisition 1--22....................

T able 1--19: Optical Power Meter 1--46............................

Table 1--20: Optical modules -- Clock recovery options

(CR, CR1, CR2, CR3, an d CR4) 1--46..........................

T able 1--21: Optical modules -- Mechanical 1--54....................

Table 1--22: Optical modules -- Environmental 1--55.................

T able 1--23: Module characteristics 1--57...........................

Table 1--24: Environmental specifications 1--58.....................

T able 1--25: Mechanical specifications 1--58........................

xii

Table 2--1: Additional accessory connection information 2--4.........

Table 2--2: Line fuses 2--6......................................

Table 2--3: Application software version required 2--26...............

T able 3--1: Module optical/electrical split 3--6......................

Table 4--1: Equipment Required 4--31.............................

80E00 Test Record 4--37........................................

CSA8000 & TDS8000 Series Instruments and Sampling Modules

Table of Contents

T able 4--2: DC Voltage measurement accuracy 4--90.................

Table 4--3: Data for calculation of gain and linearity 4--93............

Table 4--4: Computed rise time 4--98..............................

T able 4--5: Power reference 4--100.................................

Table 4--6: DUT (device under test) reference response 4--103..........

Table 4--7: 80E06 bandwidth response (50 MHz -- 50 GHz) 4--115.......

Table 4--8: 80E06 bandwidth response (55 GHz -- 65 GHz) 4--128.......

Table 4--9: Application software version required 4--137...............

Table 4--10: Dark level and vertical equivalent optical noise

limits 4--141................................................

Table 4--11: Minimum optical bandwidth limits 4--153................

T able 4--12: Reference receiver frequency response limits 4--155........

T able 4--13: Reference receiver frequency response limits 4--167........

Table 4--14: Minimum limits 4--172................................

T able 4--15: Aberrations 4--172....................................

Table 4--16: Clock recovery settings 4--177..........................

Table 4--17: Clock recovery settings & jitter limits 4--181..............

Table 5--1: Adjustments required for module replaced 5--1...........

Table 5--2: Required equipment and materials 5--2.................

T able 6--1: External inspection check list 6--3......................

T able 6--2: Internal inspection check list 6--4......................

Table 6--3: Tools required for module removal 6-- 8.................

Table 6--4: Failure symptoms and possible causes 6--67...............

Table 6--5: Power supply voltages 6-- 73............................

Table 6--6: Action required for module replaced 6--76................

Table 7--1: Available sampling modules 7--1.......................

T able 7--2: Standard accessories 7--2.............................

Table 7--3: Optional accessories 7--3..............................

CSA8000 & TDS8000 Series Instruments and Sampling Modules

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Table of Contents

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CSA8000 & TDS8000 Series Instruments and Sampling Modules

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.

ToAvoidFireor

Personal Injury

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.

CSA8000 & TDS8000 Series Instruments and Sampling Modules

General Safety Summary

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.

Symbols and Terms

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:

xvi

CAUTION

Refer to Manual

Mains Disconnected

OFF (Power)

WARNING

High Voltage

Mains Connected

ON (Power)

Protective Ground

(Earth) Terminal

Standby

CSA8000 & TDS8000 Series Instruments and Sampling Modules

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.

CSA8000 & TDS8000 Series Instruments and Sampling Modules

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Service Safety Summary

xviii

CSA8000 & TDS8000 Series Instruments and Sampling Modules

Preface

Manual Structure

This is the service manual for the:

H CSA8000 and CSA8000B Communications Signal Analyzers,

H TDS8000 and TDS8000B Digital Sampling Oscilloscopes, and

H the sampling and other modules that install in both instruments.

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.

NOTE. This manual includes information for the CSA8000/TDS8000 and CSA8000B/TDS 8000B instruments.

This manual is divided into chapters, which are made up of related subordinate topics. These topics can be cross referenced as sections.

Manual Conventions

Modules

Replaceable Parts

Safety

Be sure to read the introductions to all procedures. These introductions provide important information needed to do the service correctly, safely, and efficiently.

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. “Sampling modules,” such as electrical sampling and optical sampling modules, refer to products.

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 10.

Symbols and terms related to safety appear in the General Safety Summary found at the beginning of this manual.

CSA8000 & TDS8000 Series Instruments and Sampling Modules

xix

Preface

Contacting Tektronix

Preface

Phone 1-800-833-9200*

Address Tektronix, Inc.

Department or name (if known) 14200 SW Karl Braun Drive P.O. Box 500 Beaverton, OR 97077 USA

Web site www.tektronix.com

Sales support 1-800-833-9200, sel ect option 1*

Service support 1-800-833-9200, select option 2*

Technical support Email: techsupport@te ktronix.com

1-800-833-9200, select option 3*

6:00 a.m. -- 5:00 p.m. Pacific time

* This phone number is toll free in North America. After office hours, please leave a

voice mail message. Outside North America, contact a Tektronix sales office or distributor; see the Tektronix web site for a list of offices.

CSA8000 & TDS8000 Series Instruments and Sampling Modules

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Preface

xxii

CSA8000 & TDS8000 Series Instruments and Sampling Modules

System Specifications

All specifications apply to the instrument and sampling modules. unless noted otherwise. To meet specifications, three conditions must first be met:

H The instrument must have been calibrated/adjusted at an ambient tempera-

ture between +10 _C and +40 _C.

H The instrument must have been operating continuously for 20 minutes within

the operating temperature range specified.

H The instrument must be in an environment with temperature, altitude,

humidity, and vibration with the operating limits described in these

specifications.

NOTE. “Sampling Interface” refers to both the small module compartments and the large module compartments, unless otherwise specified.

Table 1- 1: System - Signal acquisition

Description Characteristics

Number of input channels

Number of small sampling module compartments

Number of large sampling module compartments

Small Sampling Module Interface

Large Sampling Module Interface

Total channels ≤ 8.

8 acquisition channels, maximum

4 compartments, for a tot al of 8 channels

2 compartments, for a tot al of 2 channels

Tekprobe-Sampling Level 3. Hot switching is not permitted on this interface.

CSA8000 & TDS8000 Series Instruments and Sampling Modules

1- 1

System Specifications

Table 1- 2: System - Timebase

Description Characteristics

Sampling rate DC-200 kHz maximum, dictated by trigger rate and actual holdoff

setting. If trigger rate is less than the maximum, or the requested holdoff exceeds the minimum, the trigger rate and/or holdoff will dictate the sampling rate.

Record length

20, 50, 100, 250, 500, 1000, 2000 and 4000 samples.

Horizontal scale range

1 ps/div to 5 ms/div in 1, 2, 5 steps or 1 ps increments. Maximum record lengths apply at certain ranges (per table, below).

Scale set to an integer multiple of: Maximum record length

1 ps/div 1000

2 ps/div 2000

4 ps/div 4000

Horizontal position

50 ms maximum.

range

Horizontal resolution 10 fs minimum

Horizontal position setting resolution

Horizontal modes

8000 instrument: 1 ps minimum 8000B instrument: 0.1 ps minimum

Two modes, Short Term Optimized and Locked to 10 MHz Reference. The 10 MHz reference may be int ernal or external.

n Time interval accuracy, short term optimized mode

Strobe placement accuracy for a given horizontal interval and position on same strobe line per table below. (Contribution from 80E04 sampling module is included in specification.)

Range Time Interval Accuracy

≤ 20 ps/div 1 ps + 1% of interval

≥ 21 ps/div 8 ps + 0.1% of interval

n Time interval accuracy, locked to i nternal 10 MHz reference mode

Strobe placement accuracy for a given horizontal interval and position on same strobe line per table below. Contribution from 80E04 sampling module is included in specification.

Range Time Interval Accuracy

≤ 20 ps/div 1 ps + 1% of interval

≥ 21 ps/div 8 ps + 0.01% of interval

Horizontal deskew

--500 ps to +100 ns on any individual channel in 1 ps increments.

range and resolution

The total number of sam ples contained in a single acquired waveform record (memory length in IEEE 1057, 2.2.1).

80E02 sampling module is included in this specification.

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CSA8000 & TDS8000 Series Instruments and Sampling Modules

System Specifications

Table 1- 3: System - Trigger

Description Characteristics

Trigger sources External Direct Edge Trigger, External Prescaled Trigger, Internal Clock

Trigger, and Clock Recovery (with appropriately equipped optical modules)

Auto/normal mode Normal mode: wait for trigger

Auto mode: Trigger automatically generated after 100 ms time-out

Slope + or -- select Edge + mode: Triggers on positive-slewing edge

Edge -- mode: Triggers on negative-slewing edge

High frequency on/off select

Metastability Reject On/Off select

Gated Trigger ±5 V maximum.

High Frequency ON mode: Removes trigger hysteresis and improves sensitivity. Should be used when trigger slew rate exceeds 1 V/ns.

High Frequency OFF mode: Retains trigger hysteresis and improves noise rejection at low slew rates.

Metastability Reject On mode: Upon detection of trigger and holdoff collision, time base will reject the sampled point.

Metastability Reject Off mode: Allows metastabl e points caused by trigger/holdoff collisions to display.

Variable trigger hold off range and resolution

External direct trigger capabilities and conditions

External direct trigger input characteristics

External direct trigger input range

External direct trigger maximum operating trigger signal

External direct trigger level range

n External direct trigger sensitivity

See the Gated Trigger Input descriptions, beginning on page 1--7. Adjustable 5 s to 50 ms in 0.5 ns increments. When External

Prescaled Trigger mode is used, holdoff period applies to the Prescaled circuit output.

Direct edge triggering on signal applied to dedicated front panel connector with Holdoff, Level Adjust, Auto/Normal, High Frequency On/Off, and Enhanced Triggering On/Off controls.

External direct trigger specifications apply only under the condition that no other trigger signal is applied to respective connectors.

Short term optimized mode and locked to internal 10 MHz reference specifications only apply under the condition that there is no external 10 MHz reference applied to the front panel connector.

50 Ω input resistance, DC coupled only

±1.5 V (DC + peak AC) maximum input voltage

1Vpp

Adjustable between ±1.0 V

100 mV, DC-3 GHz

CSA8000 & TDS8000 Series Instruments and Sampling Modules

1- 3

System Specifications

Table 1- 3: System - Trigger (cont.)

Description Characteristics

External direct trigger sensitivity

External direct trigger level resolution

n External direct trigger level accuracy

n External direct trigger delay j itter, short term optimized mode

External direct trigger delay jitter, short term optimized mode (typical)

n External direct delay jitter, locked to internal 10 MHz reference mode

External direct delay jitter, locked to internal 10 MHz reference mode (typical)

External direct trigger minimum pulse width

External direct trigger metastability

External direct trigger real time accessory interface

External prescaled trigger capabilities and conditions

50 mV typical, DC-4 GHz

1mV

50 mV + 0.10 x level

8000 instrument: 1.5 ps RMS + 10 ppm of horizontal position, or better 8000B instrument: 1.2 ps RMS + 10 ppm of horizontal position, or better

8000 instrument: 1.0 ps RMS + 5 ppm of horizontal position, typical 8000B instrument: 800fs RMS + 5 ppm of horizontal position, typical

8000 instrument: 2.5 ps RMS + 0.10 ppm of horizontal position, or better 8000B instrument: 2.5 ps RMS + 0.04 ppm of horizontal position, or better

8000 instrument: 1.6 ps RMS + 0.05 ppm of horizontal position, typical 8000B instrument: 1.6 ps RMS + 0.01 ppm of horizontal position, typical

167 ps, typical

Enhanced triggering on: Zero, typical

Tekprobe-SMA, Levels 1 and 2. Hot switching is permitted on this real time accessory interface.

Prescaled triggering on signal applied to dedicated front panel connector with Holdoff, Auto/Normal, Metastability Reject On/Off.

External prescaled trigger specifications apply only under the condition that no other trigger source is applied to respective connectors.

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External prescaled trigger input characteristics

External prescaled trigger absolute maximum input

CSA8000 & TDS8000 Series Instruments and Sampling Modules

Short term optimized mode and locked to internal 10 MHz reference specifications only apply under the condition that there is no external 10 MHz reference applied to the front panel connector.

50 Ω AC coupled input resistance; divide-by-eight prescaler ratio, fixed level zero volts

±2.5 Vpp

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