Tektronix 071-1844-00

Theory of Operation

2-4 DPO4000 Series Service Manual

Contents

Main Contacting Tektronix Warranty16 Page Table of Contents List of Tables List of Figures General Safety Summary ToAvoidFireor PersonalInjury Termsin this Manual Symbolsand Terms on the Product Service Safety Summary Page Environmental Considerations Product End-of-Life Handling Restriction of Hazardous Substances Page Preface Manual Conventions Related Documen tation Modules Replaceable Parts Safety Page Page Page Page Page Page Page DPO4000 Series Service Manual 2-1 Theory of Operation Figure2 -1: DPO4000 series block diagram Block Diagrams Power Supply I/O Board Main Board Acquisition System TriggerSystem Display System Front-Panel Board Page Page Page Adjustment Procedures Required Equipment Overview of the AdjustmentProcess Factory Adjustment Procedure Page Page Page Maintenance Preventing ESD Inspection and Cleaning General Care Flat Panel Display Cleaning Interior Cleaning Exterior Cleaning Exterior Inspection Interior Inspection Page Overview of Removal Procedures List of Modules ToolsRequired Trim,Cabinet, and Module Removal Page Removal Procedures Rear Case Power SupplyModule I/OB oard Main Fans Main Board Front Case Assembly Display Front Panel Troubleshooting TroubleshootingProcedure Maintenance Figure4 -4: AC power supply troubleshooting procedure 4-14 DPO4000 Series Service Manual Maintenance Figure4 -5: Module isolation troubleshooting procedure DPO4000 Series Service Manual 4-15 Unpacking and Repacking Instructions Unpacking Storage Repacking Page Page Mechanical Parts List Parts OrderingInformation 670-7918-XX 670-7918-03 Part Number Revision Level Using the Replaceable PartsList Module Servicing Abbreviations DPO4000 Series Service Manual 5-3 Mfr. code Manufacturer Address City,state, z ip code Mfr.Code to Manuf acturer Cross Index ExplodedViews DPO4000 Series Service Manual 5-5 5-6 DPO4000 Series Service Manual Figure5 -2: Exploded view: f ront panel and display,4-channel instruments DPO4000 Series Service Manual 5-7 Page DPO4000 Series Service Manual 5-9 5-10 DPO4000 Series Service Manual Figure5 -4: Exploded view: power supply and I/O board DPO4000 Series Service Manual 5-11 5-12 DPO4000 Series Service Manual Figure5 -5: Exploded view: mainboard, inverter board, and side fans DPO4000 Series Service Manual 5-13 5-14 DPO4000 Series Service Manual Page Page DPO4000 Series Service Manual Index-1 Index A C D E R T U