Tektronix WFM601 User manual

Service Manual
WFM601
Serial Digital Component Monitor
070-8876-00
Please check for change information at the rear
of this manual.
First Printing May 1994
Revised October 1994

Copyright Tektronix, Inc., 1994. All rights reserved. Printed in U.S.A.
Tektronix products are covered by U.S. and foreign patents, issued and
pending.
Information in this publication supersedes that in all previously
published material. Specifications and price change privileges reserved.
The following are registered trademarks: TEKTRONIX and TEK.
For further information, contact: Tektronix, Inc., Corporate Offices, P.O. Box
1000, Wilsonville, OR 97070–1000, U.S.A. Phone: [phone]; TLX:
192825; TWX: (910) 467–8708; Cable: TEKWSGT.
Tektronix’ Television Division participates in the Broadcast Profession-
als Forum (BPFORUM) on the CompuServeInformation Service.
Press releases on new products, product-specific newsletters, application
information and technical papers are among the types of information
uploaded.
Additionally, product specialists from Tektronix will be “on line” to
answer questions regarding product applications, operation and
maintenance.
Instructions for accessing the information on CompuServe can be found
in the current Tektronix Television Products Catalog.
CompuServe access is currently available in the U.S.A., Canada, Europe,
Japan, Australia, New Zealand, Argentina, Venezuela, Korea, and
Taiwan.

WARRANTY
Tektronix warrants that this product, that it manufactures and sells, will be free from defects in materials
and workmanship for a period of three (3) years from the date of shipment. If any such product proves defec-
tive 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.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expi-
ration 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 re-
turned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inade-
quate 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 modifica-
tion or integration increases the time or difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS PRODUCT IN LIEU
OF ANY OTHER WARRANTIES, EXPRESSED OR IMPLIED. TEKTRONIX AND ITS VEN-
DORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR
A PARTICULAR PURPOSE. TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DE-
FECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUS-
TOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT
BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAM-
AGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NO-
TICE OF THE POSSIBILITY OF SUCH DAMAGES.

The WFM601 Serial Digital Component Monitor

  
Certificate of the Manufacturer/Importer
We hereby certify that the WFM601 Serial Digital Component Monitor and all factoryĆinstalled options
complies with the RF Interference Suppression requirements of Postal Regulation Vfg. 243/1991, Amended
per Vfg. 46/1992
The German Postal Service was notified that the equipment is being marketed.
The German Postal Service has the right to reĆtest the series and to verify that it complies.
TEKTRONI
Bescheinigung des Herstellers/Importeurs
Hiermit wird bescheinigt, daß der/die/das WFM601 Serial Digital Component Monitor und alle
fabrikinstallierten Optionen in Übereinstimmung mit den Bestimmungen der AmtsblattĆVerfügung Vfg.
243/1991 und Zusatzverfügung 46/1992 funkentstört sind.
Der Deutschen Bundespost wurde das Inverkehrbringen dieses Gerätes angezeigt und die Berechtigung zur
Überprüfung der Serie auf Einhalten der Bestimmungen eingeräumt.
TEKTRONI
NOTICE to the user/operator:
The German Postal Service requires that Systems assembled by the operator/user of this instrument must
also comply with Postal Regulation, Vfg. 243/1991, Par. 2, Sect. 1.
HINWEIS für den Benutzer/Betreiber:
Die vom Betreiber zusammengestellte Anlage, innerhalb derer dieses Gerät eingesetzt wird, muß ebenfalls
den Voraussetzungen nach Par. 2, Ziff. 1 der Vfg. 243/1991, genügen.
NOTICE to the user/operator:
The German Postal Service requires that this equipment, when used in a test setup, may only be operated if
the requirements of Postal Regulation, Vfg. 243/1991, Par. 2, Sect. 1.8.1 are complied with.
HINWEIS für den Benutzer/Betreiber:
Dieses Gerät darf in Meßaufbauten nur betrieben werden, wenn die Voraussetzungen des Par. 2, Ziff. 1. 8.1
der Vfg. 243/1991 eingehalten werden.

Standards Compliance
The WFM601 Serial Digital Component Monitor complies with the following
safety standards:
•Underwriters Laboratories: UL1244 — Second Edition—Standard for Electrical
and Electronic Measuring and Testing Equipment
•FM 3820 – “Approval Standard for Electrical Utilization Equipment.”
•Canadian Standards Association: C22.2 No. 231 Series–M89—CSA Safety Re-
quirements for Electrical and Electronic Measuring and Testing Equipment
•American National Standard: ANSI/ISA–S82–1988—Safety Standard for Electri-
cal and Electronic Test, Measuring, Controlling and Related Equipment
•International Standard: IEC1010–1 —“Safety Requirements for Electrical
Equipment for Measurement, Control, and Laboratory Use.
The WFM601 Serial Digital Component Monitor complies with the following
regulatory standards:
•U.S. EMI: FCC Rules, Part 15, Subpart J, Class A
•German EMI: VDE 0871.5 (Class B)—Radio frequency Interference Suppression
of Electrical Equipment and Systems

WFM 601 - Service Manual
Revised Nov 1994 i
Contents
Specifications
Specification 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Characteristics Tables 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Major Features 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Characteristics Tables 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Information
Installation 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mechanical Installation 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Installation 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Panel Connectors 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Connector 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Connector Converter 2–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RS232 Connector 2–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing Software 2–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedure for Loading Software 2–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Recovery Procedure for Power Loss During Upgrade 2–17. . . . . . . . . . . . . .
Operating Instructions 2–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Getting Started 2–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Instructions 2–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Menu Information 2–21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Overview 2–24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying a Signal 2–27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theory of Operation
Block Diagram Description 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Block Diagrams 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Block Diagram 1 Input and Waveform Monitor 3–2. . . . . . . . . . . . . . . . . . . . . . . . .
Block Diagram 2 Component 3–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Block Diagram 3 Microprocessor and Line Rate Controller 3–5. . . . . . . . . . . . . . . .
Circuit Theory 3–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagram 1 Serial Inputs 3–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagram 2 Deserializer 3–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagram 3 Coprocessor 3–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagram 4 Clocks, Power, & Interconnects 3–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagram 5 Y Delay, Half-Band Filter, & DAC 3–11. . . . . . . . . . . . . . . . . . . . . . . . . .
Diagram 6 PB & PR Half-Band Filters & DACs 3–11. . . . . . . . . . . . . . . . . . . . . . . . .
Diagram 7 Y, PB, & PR Reconstruction Filters 3–12. . . . . . . . . . . . . . . . . . . . . . . . . .
Diagram 8 Transcoders & Picture Monitor Outputs 3–12. . . . . . . . . . . . . . . . . . . . . .
Diagram 9 Lightning, Vector, & Bowtie Switching 3–15. . . . . . . . . . . . . . . . . . . . . . .
Diagram 10 Control & Daculator 3–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagram 11 Vertical Input 3–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagram 12 Vertical Output 3–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagram 13 Horizontal 3–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagram 14 Microprocessor 3–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents
ii WFM 601 - Service Manual
Revised Nov 1994
Diagram 15 Dynamic Control 3–21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagram 16 Readout 3–22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagram 17 DACs & Serial 3–23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagram 18 Remote & Digital Bus Connectors 3–23. . . . . . . . . . . . . . . . . . . . . . . . . .
Diagram 19 Z-Axis & Control 3–24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagram 20 Front Panel 3–25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagram 21 Low Voltage Power Supply 3–25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagram 22 High Voltage Power Supply 3–28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Verification
Performance Verification 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Equipment List 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Calibration Data Report 4–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Verification Procedure 4–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment Procedures
Adjustment Procedure 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Equipment List 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Getting Started 5–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Description of PC Display 5–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Board Adjustment Locations 5–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Waveform Illustrations 5–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TSG 422 Signal Illustrations 5–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
Maintenance 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Options 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preventive Maintenance 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Corrective Maintenance 6–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specific Troubleshooting Techniques 6–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tektronix Service Offerings 6–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Etched Circuit Boards 6–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mechanical Diassembly/Assembly 6–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repackaging 6–34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options
Options 7–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Orderable Options 7–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Applicable Options 7–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Cord Options 7–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinets 7–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Plain Cabinet (1700F00) 7–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Carrying Case (1700F02) 7–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Side-by-Side Rack Adapter (1700F05) 7–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blank Panel (1700F06) 7–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Utility Drawer (1700F07) 7–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ordering 7–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents
WFM 601 - Service Manual
Revised Nov 1994 iii
Electrical Parts List 8–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagrams 9–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mechanical Parts List 10–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glossary & Index
Glossary G–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index I–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Change Information

Contents
iv WFM 601 - Service Manual
Revised Nov 1994