Tektronix RSA3308A Manual de usuario

Service Manual

RSA3303A & RSA3308A

3 GHz & 8 GHz Real-Time Spectrum Analyzers

071-1412-02

This document applies to firmware version 3.20

and above.

Warning

The servicing instructions are for use by qualified

personnel only. To avoid personal injury, do not

perform any servicing unless you are qualified to

do so. Refer to all safety summaries prior to

performing service.

www.tektronix.com

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.

RSA3303A & RSA3308A Service Manual i

Table of Contents

General Safety Summary ix...................................

Service Safety Summary xi....................................

Preface xiii...................................................

Manual Structure xiii................................................

Manual Conventions xiv..............................................

Notice for Trigger Function xiv........................................

Finding Other Information xv.........................................

Introduction xvii..............................................

Performance Check Interval xvii........................................

Strategy for Servicing xvii.............................................

Specifications

Performance Conditions 1--1...........................................

Electrical Characteristics 1--2..........................................

Physical Characteristics 1--16...........................................

Environmental Characteristics 1--16......................................

Operating Information

Theory of Operation

RF Input Circuit 3--1.................................................

Down Converter 3--2.................................................

Digital Signal Processing 3--3..........................................

Power Supply 3--5...................................................

External Interface 3--6................................................

Performance Verification

Conventions 4--2....................................................

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

Functional Check 4--4................................................

Diagnostics 4--8.....................................................

Performance Tests 4--9.........................................

Prerequisites 4--10....................................................

Equipment Required 4--10..............................................

Auto Tests 4--12......................................................

Manual Tests 4--21....................................................

Test Record 4--49.....................................................

Table of Contents

ii RSA3303A & RSA3308A Service Manual

Adjustment Procedures

Requirements for Performance 5--1......................................

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

Preparation 5--3.....................................................

Self Calibration 5--16..................................................

Auto Calibration 5--20.................................................

Reference Oscillator Frequency Adjustment 5--29...........................

Reconfiguration of RF Modules 5--31.....................................

Maintenance

Related Maintenance Procedures 6--1....................................

Preparation 6--2.....................................................

Inspection and Cleaning 6--4...........................................

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

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

Access Procedure 6--22................................................

Procedures for External Modules 6--23....................................

Procedures for RF Modules 6--28........................................

Procedures for CPU Board and Disk Modules 6--32..........................

Procedures for Mother Board and its Daughter Boards 6--37...................

Procedures for Power Supply Modules on the Instrument Bottom 6--45..........

Procedures for RF1 Modules on the Instrument Bottom 6--50..................

Procedures for Front Panel Modules 6--57.................................

Procedures for Chassis Modules 6--63.....................................

Troubleshooting 6--69...........................................

Troubleshooting Procedure 6--69.........................................

Symptoms and Faulty Modules 6--82.....................................

Notes for Changing Modules or Parts 6--84................................

Options

Electrical Parts List

Diagrams

Mechanical Parts List

Replaceable Parts 10--1..........................................

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

Using the Replaceable Parts List 10--3....................................

Table of Contents

RSA3303A & RSA3308A Service Manual iii

List of Figures

Figure 4--1: Spectrum of the calibration signal (50 MHz, --20 dBm) 4--5

Figure 4--2: Setup display 4--6...................................

Figure 4--3: Reference level setting and A/D overflow indicator 4--7....

Figure 4--4: Spectrogram display 4--7.............................

Figure 4--5: Diagnostic screen 4--8................................

Figure 4--6: Auto test initial screen 4--12............................

Figure 4--7: Auto test result display example 4--16...................

Figure 4--8: Initial test hookup 4--22...............................

Figure 4--9: Initial hookup for setting up the power meter and

sensor 4--23................................................

Figure 4--10: Hookup for calibrating the power sensor 4--24...........

Figure 4--11: Hookup for setting the signal generator output 4--24......

Figure 4--12: Hookup for checking the absolute amplitude accuracy 4--25

Figure 4--13: Initial test hookup 4--27..............................

Figure 4--14: Initial test hookup 4--30..............................

Figure 4--15: Initial test hookup 4--36..............................

Figure 4--16: Initial test hookup 4--39..............................

Figure 4--17: Initial test hookup 4--42..............................

Figure 4--18: Initial test hookup 4--45..............................

Figure 5--1: Hookup for storing the cal factors in the power meter 5--5.

Figure 5--2: Initial test hookup 5--7...............................

Figure 5--3: Hookup for calibrating the power sensor 5--9............

Figure 5--4: Initial test hookup 5--10...............................

Figure 5--5: Hookup for calibrating the power sensor 5--12............

Figure 5--6: UNCAL display 5--16.................................

Figure 5--7: Calibration menu 5--17...............................

Figure 5--8: Center offset 5--18....................................

Figure 5--9: DC offset 5--19.......................................

Figure 5--10: Auto calibration initial screen 5--20....................

Figure 5--11: Auto cal result display example 5--24...................

Figure 5--12: Initial test hookup 5--29..............................

Figure 5--13: R232 location (top view of the card cage) 5--30...........

Figure 5--14: Test hookup 5--32...................................

Figure 5--15: Test hookup 5--33...................................

Table of Contents

iv RSA3303A & RSA3308A Service Manual

Figure 6--1: Analyzer orientation 6--11.............................

Figure 6--2: External modules 6--12................................

Figure 6--3: RF modules 6--13....................................

Figure 6--4: CPU board and disk modules 6--14.....................

Figure 6--5: Mother board and its daughter boards

(S/N B020000 and above) 6--15................................

Figure 6--6: Mother board and its daughter boards

(S/N below B020000 and J300100 and above) 6--16...............

Figure 6--7: Bottom modules -- Power supply 6--17...................

Figure 6--8: Bottom modules -- RF1 (RSA3303A) 6--18................

Figure 6--9: Bottom modules -- RF1 (RSA3308A) 6--19................

Figure 6--10: Front panel modules 6--20............................

Figure 6--11: Chassis modules 6--21................................

Figure 6--12: Guide to removal procedures 6--22.....................

Figure 6--13: Line cord and cabinet removal 6--24...................

Figure 6--14: Front cushion removal 6--25..........................

Figure 6--15: Cabinet modules removal 6--27........................

Figure 6--16: RF modules removal 6--29............................

Figure 6--17: CPU board removal 6--33............................

Figure 6--18: Disk module removal 6--35...........................

Figure 6--19: A10 A/D board removal 6--38.........................

Figure 6--20: Daughter boards removal 6--42........................

Figure 6--21: Mother board removal 6--44..........................

Figure 6--22: Power supply 1 and 2 removal 6--46....................

Figure 6--23: Power supply modules removal 6--48...................

Figure 6--24: RF1 modules removal -- 1 6--51........................

Figure 6--25: RF1 modules removal -- 2 (RSA3303A) 6--53.............

Figure 6--26: RF1 modules removal -- 2 (RSA3308A) 6--55.............

Figure 6--27: Front panel assembly removal 6--58....................

Figure 6--28: Front panel modules removal 6--59....................

Figure 6--29: LCD display removal 6--62...........................

Figure 6--30: Fan and side panel removal 6--64......................

Figure 6--31: Board guide bracket removal 6--65.....................

Figure 6--32: Rear panel modules 6--67.............................

Figure 6--33: Troubleshooting procedure 1 — Power supply system 6--70

Figure 6--34: Troubleshooting procedure 2 — Display and CPU

system 6--71................................................

Figure 6--35: Troubleshooting procedure 3 — Signal path 6--72........

Table of Contents

RSA3303A & RSA3308A Service Manual v

Figure 6--36: Top view for cable interconnection

(S/N B020000 and above) 6--77................................

Figure 6--37: Top view for cable interconnection

(S/N below B020000 and J300100 and above) 6--78...............

Figure 6--38: Bottom view for cable interconnection (RSA3303A) 6--79..

Figure 6--39: Bottom view for cable interconnection (RSA3308A) 6--80..

Figure 6--40: A70 DC power supply board 6--82.....................

Figure 9--1: Block diagram (S/N B020000 and above) 9--3............

Figure 9--2: Block diagram

( S/N below B020000 and J300100 and above) 9--4...............

Figure 9--3: Interconnect diagram

(RSA3303A, S/N B020000 and above) 9--5......................

Figure 9--4: Interconnect diagram

(RSA3303A, S/N below B020000 and J300100 and above) 9--6.....

Figure 9--5: Interconnect diagram

(RSA3308A, S/N B020000 and above) 9--7......................

Figure 9--6: Interconnect diagram

(RSA3308A, S/N below B020000 and J300100 and above) 9--8.....

Figure 10--1: External modules 10--5...............................

Figure 10--2: Front-panel assembly -- 1 10--7........................

Figure 10--3: Front-panel assembly -- 2 10--9........................

Figure 10--4: RF modules 10--11...................................

Figure 10--5: Mother board and its daughter boards -- 1 10--13.........

Figure 10--6: Mother board and its daughter boards -- 2 10--15.........

Figure 10--7: Disk modules 10--17..................................

Figure 10--8: Bottom modules -- Power supply 10--19..................

Figure 10--9: Bottom modules -- RF1 (RSA3303A) 10--21...............

Figure 10--10: Bottom modules -- RF1 (RSA3308A) 10--23..............

Figure 10--11: Bottom modules -- Interconnection 10--25...............

Figure 10--12: Chassis modules -- 1 10--27...........................

Figure 10--13: Chassis modules -- 2 10--29...........................

Figure 10--14: Rackmount 10--31...................................

Table of Contents

vi RSA3303A & RSA3308A Service Manual

List of Tables

Table 1--1: Frequency 1--2......................................

Table 1--2: Spectrum purity 1--2.................................

Table 1--3: Noise sideband 1--3..................................

Table 1--4: Input 1--4..........................................

Table 1--5: Amplitude 1--4......................................

Table 1--6: Dynamic range 1--5..................................

Table 1--7: Spurious response 1--6...............................

Table 1--8: Acquisition 1--7.....................................

Table 1--9: Sampling rate 1--7...................................

Table 1--10: Frame time 1--8....................................

Table 1--11: Digital demodulation (Option 21 only) 1--8.............

Table 1--12: Analog demodulation 1--10............................

Table 1--13: RBW (Resolution Bandwidth) 1--11....................

Table 1--14: Trigger (S/N B020000 and above) 1--12.................

Table 1--15: Trigger (S/N below B020000 and J300100 and above) 1--12.

Table 1--16: Measurement function 1--13...........................

Table 1--17: Display 1--13.......................................

Table 1--18: Marker, trace, and display line 1--14....................

Table 1--19: Controller and interface 1--14.........................

Table 1--20: Power requirements 1--15.............................

Table 1--21: Power connector 1--15................................

Table 1--22: Physical characteristics 1--16..........................

Table 1--23: Environmental characteristics 1--16....................

Table 1--24: Certifications and compliances 1--17....................

Table 4--1: Span and RBW 4--6..................................

Table 4--2: Internal diagnostic program 4--8.......................

Table 4--3: Test equipment 4--10..................................

Table 4--4: Test item selection 4--13...............................

Table 4--5: Procedure for failed test item 4--19......................

Table 4--6: Spurious measurement 4--41...........................

Table 5--1: Test equipment 5--2..................................

Table 5--2: Compatibility of the spurious correction file 5--15.........

Table 5--3: Calibration items 5--21................................

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