Tektronix 1760 Service Manual

Preface

1760 SeriesComponent Waveform/Vector Monitor User Manu al

xii

Service Manual

Topics covered in the service manual are as follows:

Specifications

Operating Information

Theory of Operation

Performance Verificati on

Adjustment Procedures

Maintenance

Options

Electrical Parts List

Diagrams

Mechanical Parts List

Contents

Main Page WARRANTY Page General Safety Summary ToAvoid Fire or Personal Injury Use Proper Power Cord Connect and DisconnectProperly Ground the Product Safety Terms and Symbols Page Page TABLE O F CONTENT S Introduction Getting Started Operation Basics Making Measurements Appendices LIST OF FIGURES Page Preface User Manual Service Manual Page Contacting Tektronix Page Page Product Description Applications Features Description of Features Menu CRT Calibrator More Information Page Options Option SC Power Cord Options CRT Options Accessories Standard Accessories Optional Access ories Field Upgrade Kits Installation Unpacking Accessories Packaging for Shipment Electrical Installation Power Source Mains Frequency and Voltage Range Remote Connector RS232 Connector Operational Changes Mechanical Installation Cabinets Custom Installation Rackmounting Page Instrument Configuration Page Page Page At A Glance Front-Panel Controls C o n t r o l s --- Sw i tc h e s --- L E D s POWER Instrument Reset Multi-use Control s AtA Glance 1760 SeriesComponent Waveform/Vector Monitor User Manu al 2-3 DISPLAY Figure 2-2. 1760 Front Panel. POSITION DISPLAY SWEEP DC REST REF INPUT MENU Page Rear-Panel Connectors Loop-Through Inputs Outputs Multi-Pin Conne ctors Page Page Operators Checkout Procedure Required Equipment Initial Equipment Connections Procedure Page Page Page Page Page Page 2-20 10S/DIV Page Page Page Page Page Page OperatorsCheckout P rocedure R Figure 2-20. Diamond display, showing signal withingam utlimit. 1760 SeriesComponent Waveform/Vector Monitor User Manu al 2-27 Figure 2-19. Lightning Display in MII Format. B G Page Page Page Functional Overview SCH Waveform Audio Lightning Diamond Bowtie Picture Time Code Multiple Displaying a Signal Inputs Parade Overlay Sweep Using the Menus General Menu In formation Multi-Use Bezel Controls and Buttons Moving Between Menus Clear Menu Exiting a Menu Function Filter Menu Cursor Menu Vector Cursor Control Waveform Cursor Control Usingthe Menus Left Center Right Figure 3-4. The VECTOR+WFM CURSOR menu withV+T selected. 3-12 Figure 3-3. The WAVEFORM CURSOR menu. Voltage Curs or 1 Voltage Curs or 2 TimingC ursor1 TimingC ursor2 Vector + Waveform (Multiple) Using the Cursors With Vector Display Page With Waveform Display Line Select Menu Page Preset Menu Page Configure Menu INPUT VECTOR FORMAT Page OFFSET CALIBRATE REMOTE REFERENCE Gain Menu CRT Menu Page Remote Operation Using Presets through the Remote Page Page Page Basic Measurements Waveform Graticule Horizontal Scale NTSC Vertical Scales PAL Vertical Scale Dual-Standard Vertical Scale Basic Measurements 4-4 Figure 4-3. Dual Standard waveform/vector graticule. Tab le 4 --- 1 . Dual-Standard Graticule Scales Making Waveform Measurements Vector Graticule R Page MakingVectorMeasurements Chroma Bandwidth Differential Phase and Gain Making SC/H Phase Measurements NTSC Page PAL SC /H R --- Y Basic Measurements 1760 SeriesComponent Waveform/Vector Monitor User Manu al 4-13 Burst Horizontal Sync Figure 4-10. Two-Field SC/H R---Y display (NTSC), showing proper SC/H p hase. Figure 4-9. Two-LineSC/H R ---Y display (NTSC), with proper SC/H phase. 4-14 Making Audio Measurements Lightning Meas urements Page Page Using the Diamond Display Page Using the Bowtie Displa y Page Time Code Display Page Calibration Adjusting Instrument Gain Page Page Page Appendix A Performance Specification Performance Requirement (Req).All performance require- Reference Information. Reliability A-2 Electrical Specifications TableA -1: Waveform Vertical Deflection A-3 A-4 A-5 TableA - 2: External Reference A-6 TableA -3: Waveform Horizontal Deflection A-7 TableA -4: Measurement Cursors TableA - 5: RGB/YRGB A-8 TableA - 6: Calibrator TableA -7: Vector Mode A-9 TableA -7: Vector Mode (Cont.) A-10 TableA -8: Audio Mode TableA -9: Time Code A-11 TableA -10: SCH Phase Mode ( OPTSC Only) TableA -11: Component Vector Mode A-12 TableA -11: Component Vector Mode (Cont.) TableA -12: Lightning Mode TableA -13: Bowtie Mode A-13 TableA -14: Transcoded GBR Outputs TableA -15: CRT Display TableA - 16: Power Source A-14 TableA - 17: Environmental Characteristics TableA - 18: Physical Characteristics A-15 Certifications and Compliances TableA -19: Certifications and compliances A-16 TableA -19: Certifications and compliances (cont.) A-17 TableA -19: Certifications and compliances (cont.) Page Appendix B Remote Connectors Remote Connector Page Page Remote ConnectorConverter RS232 Connector Page Appendix C User Service Cleaning or Replacing the Fan Filter Fuse Replacement Graticule Light Replacement Page Cleaning Replacing the CRT Filter Page Appendix D Software Version Table D-1. Software Releases Page Page Page Glossary Black Burst (PAL) Blanking Level Breezeway Broad Pulses Bruch Blanking (PAL) Page Page Frequency Modulation (FM) Frame Front Porch Gamma (NTSC) Gamma (PAL) Page Page R- -Y Saturation SCH Setup SMPTE Page Page Page Page 1760 SeriesComponent Waveform/Vector Monitor User Manu al I --- 1 Index A B C 1760 SeriesComponent Waveform/Vector Monitor User Manu al I --- 2 D E F G H L M O P R S T U 1760 SeriesComponent Waveform/Vector Monitor User Manu al I --- 5 V W