Main
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WARRANTY
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Service Assurance
Service Assurance Advantages
For Information and Ordering
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Table of Contents
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List of Figures
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List of Tables
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General Safety Summary
To Avoid Fire or Personal Injury
Symbols and Terms
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Service Safety Summary
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Getting Started
VITS Inserter Functions
Test Signals
Accessories and Options
Auto VIRS Bypass
Functional Check and Installation
Functional Check
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Installation
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Operating Basics
Front Panel
BYPASS Switch and LED UNLOCKED LED POWER LED
Rear Panel
Power
Program In
Insertion Options
Program Out
Inserting Test Signals
Monitor Out Remote Connector
Passing Program Video Auto VIRS Inserting a Source ID
VITS Selection
Switch/Line Assignments
Switch Settings
Remote Control
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Specifications
Specification Tables
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VITS100 NTSC VITS Inserter Instruction Manual 33
Table 34: FCC Composite characteristics
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VITS100 NTSC VITS Inserter Instruction Manual 35
Table 38: NTC7 Combination characteristics
36 VITS100 NTSC VITS Inserter Instruction Manual
Table 39: NTC7 Composite characteristics
Table 310: Red Field characteristics
VITS100 NTSC VITS Inserter Instruction Manual 37
Table 311: SIN X/X characteristics
Table 312: Vertical Interval Reference Signal characteristics
Table 313: Cable Multiburst (Option 2) characteristics
38 VITS100 NTSC VITS Inserter Instruction Manual
Table 314: Cable Sweep (Option 2) characteristics
Table 315: Genlock characteristics
VITS100 NTSC VITS Inserter Instruction Manual 39
Table 316: Power Supply characteristics
Table 317: Physical characteristics
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VITS100 NTSC VITS Inserter Instruction Manual 311
Table 319: Certifications and compliances
Waveform Diagrams
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Theory of Operation
Functional Description
Circuit Description
Test Signal Generation
Genlock
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Signal and Switching Control
Source ID Generation
Power Supply
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Theory of Operation
Figure 41: Inductor and switching transistor switching functions
48 VITS100 NTSC VITS Inserter Instruction Manual
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Performance Verification
Incoming Inspection Test
Verification of Tolerance Values
Performance Verification
52 VITS100 NTSC VITS Inserter Instruction Manual
Equipment Required
Verification Procedure
Power Up
Test Signal References
Select VITS
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Line Input Range Program Channel to TestSignal Matching
Phase Match of Inserted Test Signal to Program Video Channel
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Phase Match Bypass Path to Program Path
Program Video Gain and Line Tilt
Chrominance to Luminance Gain and Delay
Differential Gain and Phase
Pulse-to-Bar Ratio
K-Factor
SCH Phase
Signal-to-Noise Ratio
Hum Rejection
Luminance Risetime
Chrominance Risetime
Genlock Checks
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Return Loss and Input/Output Impedance
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Frequency Response and Crosstalk
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Auto VIRS Insertion
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Adjustment Procedures
Static Discharge Precautions
Recommended Test Equipment
Adjustment Procedures
62 VITS100 NTSC VITS Inserter Instruction Manual
Adjustment Procedure
Preliminary Setup
Adjustment Procedures
J32
Figure 61: Adjustments and test points
64 VITS100 NTSC VITS Inserter Instruction Manual
J56 J57
Power Supply Adjustment
Genlock Adjustments
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Gain Adjustments
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Frequency Response Adjustments
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Oscillator Adjustment
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Maintenance
Service Strategy
Warranty Repair Service
Tektronix Service Offerings
Preparation
Static Sensitive Components
Repair Service For More Information
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Circuit Board Jumpers
Mode Selection Jumpers
Test Jumpers
Maintenance
76 VITS100 NTSC VITS Inserter Instruction Manual
Table 72: Test Jumpers
Cleaning and Inspection
Cleaning
Removal and Replacement Instructions
Top Cover
Front Panel
Inserter Circuit Board
Oscillator Circuit Board Removal/Replacement
Diagnostics
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Maintenance
VITS100 NTSC VITS Inserter Instruction Manual 713
Table 73: The User Diagnostics (Cont.)
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Replaceable Electrical Parts
Parts Ordering Information
Using the Replaceable Electrical Parts List
Abbreviations Component Number
List of Assemblies Chassis Parts Mfr. Code to Manufacturer Cross Index
VITS100 NTSC VITS Inserter Instruction Manual 83
Manufacturers Cross Index, Electrical Parts
Code Manufacturer Address City, State, Zip Code
84 VITS100 NTSC VITS Inserter Instruction Manual
Manufacturers Cross Index, Electrical Parts (Cont.)
Code City, State, Zip CodeAddressManufacturer
VITS100 NTSC VITS Inserter Instruction Manual 85
Manufacturers Cross Index, Electrical Parts (Cont.)
Code City, State, Zip CodeAddressManufacturer
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VITS100 NTSC VITS Inserter Instruction Manual 87
Replaceable Electrical Parts List
Number Tektronix
Part Number Serial No.
Effective Serial No.
88 VITS100 NTSC VITS Inserter Instruction Manual
VITS100 NTSC VITS Inserter Instruction Manual 89
810 VITS100 NTSC VITS Inserter Instruction Manual
VITS100 NTSC VITS Inserter Instruction Manual 811
812 VITS100 NTSC VITS Inserter Instruction Manual
VITS100 NTSC VITS Inserter Instruction Manual 813
814 VITS100 NTSC VITS Inserter Instruction Manual
VITS100 NTSC VITS Inserter Instruction Manual 815
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VITS100 NTSC VITS Inserter Instruction Manual 817
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VITS100 NTSC VITS Inserter Instruction Manual 819
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VITS100 NTSC VITS Inserter Instruction Manual 821
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VITS100 NTSC VITS Inserter Instruction Manual 823
824 VITS100 NTSC VITS Inserter Instruction Manual
VITS100 NTSC VITS Inserter Instruction Manual 825
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VITS100 NTSC VITS Inserter Instruction Manual 827
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A1 VITS Inserter Board (671-2132-05 & Up)
VITS100 NTSC VITS Inserter Instruction Manual 91
Figure 91: A1 VITS Inserter Board (671213205 & Up)
92 VITS100 NTSC VITS Inserter Instruction Manual
Table 91: A1 Component Locator 671213205 & Up
VITS100 NTSC VITS Inserter Instruction Manual 93
Table 91: A1 Component Locator (continued)
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VITS100 NTSC VITS Inserter Instruction Manual 95
TEST SIGNAL MEMORY
1
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VITS100 NTSC VITS Inserter Instruction Manual 97
TEST SIGNAL SELECT
TEST SIGNAL SELECT 2
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VITS100 NTSC VITS Inserter Instruction Manual 99
H&V COUNTERS,DECODERS, SOURCE IDENTIFICATION & BYPASS CONTROLS
3
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VITS100 NTSC VITS Inserter Instruction Manual 911
GENLOCK
4
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VITS100 NTSC VITS Inserter Instruction Manual 913
CLAMP, AND SYNC STRIPPER
VIDEO INPUT BUFFER,
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VITS100 NTSC VITS Inserter Instruction Manual 915
A1A1 CRYSTAL OVEN BOARD
6CLOCKS
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VITS100 NTSC VITS Inserter Instruction Manual 917
ANALOG OUTPUT 7
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VITS100 NTSC VITS Inserter Instruction Manual 919
POWER SUPPLY 8
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VITS100 NTSC VITS Inserter Instruction Manual 921
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REGULATOR & DECOUPLING CAPS
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A1 VITS Inserter Board (671-2132-00 through -04)
VITS100 NTSC VITS Inserter Instruction Manual 923
Figure 93: A1 VITS Inserter Board (671-2132-00 04)
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Replaceable Mechanical Parts
Parts Ordering Information
Using the Replaceable Mechanical Parts List
Abbreviations Chassis Parts Mfr. Code to Manufacturer Cross Index
VITS100 NTSC VITS Inserter Instruction Manual 103
Manufacturers Cross Index, Mechanical Parts
Code Manufacturer Address City, State, Zip Code
104 VITS100 NTSC VITS Inserter Instruction Manual
Replaceable Mechanical Parts List
Discontd Qty Name & Description Mfr.
Effective Serial No.
Number Serial No.
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106 VITS100 NTSC VITS Inserter Instruction Manual
A1
Figure 101: Exploded view
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Appendix A: Options
Option 1J
Signal Characteristics
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Option 1M
Making Measurements with Option 1M
Option 1M Signals
Option 2
Signal Characteristics
Appendix A: Options
VITS100 NTSC VITS Inserter Instruction Manual A7
Figure A5: Cable Multiburst
Figure A6: Cable Sweep
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Index
