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Tektronix 503

Tektronix 503
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Table of Contents

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Tektronix 503 Specifications

General IconGeneral
TypeOscilloscope
Input Impedance1 MΩ
Input Capacitance47 pF
DisplayCRT
Power Supply115/230 V AC, 50-60 Hz

Summary

Section 1 Characteristics

Introduction

Overview of the characteristics section.

Vertical and Horizontal Amplifiers

Details specifications for vertical and horizontal amplifiers.

Sweep Generator

Specifications related to the sweep generator.

Triggering

Specifications for the triggering system.

Calibrator

Specifications for the built-in calibrator.

CRT Display

Specifications for the cathode ray tube display.

Power Source

Specifications for the instrument's power requirements.

Mechanical

Physical dimensions and construction details.

Accessories

Information on available accessories.

Section 2 Operating Instructions

General

General information on using the oscilloscope.

Power Requirements

Details on voltage and frequency requirements.

Fuse Requirements

Information on required fuses.

Controls and Connectors

Description of front/rear panel controls and connectors.

Preliminary Instructions

Step-by-step guide for initial setup.

Conventional Oscilloscope Operation

How to operate in standard oscilloscope mode.

Sweep Triggering

Explanation of sweep triggering for stable display.

Selecting Trigger Source, Coupling, and Slope

How to select trigger source, coupling, and slope.

Selecting Trigger Level

How to adjust the trigger level control.

Automatic and Free-Running Modes

Explanation of automatic and free-running trigger modes.

Magnification of the Sweep

How to use the sweep magnification feature.

X-Y Mode of Operation

How to use the instrument in X-Y mode.

Applications

Examples of measurement applications.

Voltage Measurements

Procedures for measuring AC and DC voltages.

Time and Frequency Measurements

Procedures for measuring time intervals and frequency.

Phase-Shift Measurements

Procedures for measuring phase shift.

Direct Connection to CRT Plates

How to connect signals directly to CRT plates.

Input Selection and Coupling

How to select inputs and signal coupling.

Section 3 Circuit Description

Introduction

Overview of circuit analysis.

Vertical Amplifier

Detailed description of the vertical amplifier.

Output Amplifier

Description of the output amplifier stage.

Horizontal Amplifier

Detailed description of the horizontal amplifier.

Sweep Trigger

Description of the sweep trigger circuit.

Sweep Generation

Explanation of the sweep generation process.

Automatic Triggering

Explanation of automatic triggering operation.

CRT Circuit

Description of the CRT circuit.

Calibrator

Description of the calibrator circuit.

Power Supply

Description of the power supply circuit.

Section 4 Maintenance

Introduction

Overview of maintenance procedures.

Preventive Maintenance

Routine maintenance tasks.

Corrective Maintenance

Procedures for fixing issues.

Obtaining Replacement Parts

How to order replacement parts.

Removal of Panels

Steps for removing instrument panels.

Troubleshooting

Guidance for diagnosing and fixing problems.

Circuit Isolation

Techniques for isolating faulty circuits.

No Spot or Trace

Troubleshooting steps for a missing display spot or trace.

Troubleshooting the Power Supply

Steps for diagnosing power supply issues.

Insufficient or No Horizontal Deflection

Diagnosing sweep generator vs. horizontal amp issues.

Nonlinear Horizontal Sweep

Checking and diagnosing nonlinear sweep.

Improper Sweep Timing

Troubleshooting sweep timing issues.

Circuit Troubleshooting

Locating specific faulty stages within circuits.

Section 5 Performance Check

Introduction

Purpose of performance checks.

Recommended Equipment

List of necessary equipment for checks.

Preliminary

General and preliminary setup instructions.

Performance Check Procedure

Step-by-step guide for verifying instrument performance.

Focus and Astigmatism Checks

Checks for focus and astigmatism controls.

DC Balance Adjustments

Checks for vertical and horizontal DC balance.

CRT Trace Alignment and Geometry Checks

Checks for CRT trace alignment and geometry.

Gain and Variable Control Ratio Checks

Checks for amplifier gain and variable control ratios.

CompressionExpansion and Amplifier Balance Checks

Checks for signal compression, expansion, and amplifier balance (CMRR).

Attenuator Accuracy Checks

Checks accuracy of attenuator circuits.

Amplifier Phasing and Frequency Response Checks

Checks amplifier phasing and frequency response.

Sweep Stability, Triggering, and Timing Checks

Checks sweep stability, triggering, and timing accuracy.

Magnifier Accuracy and Jitter Checks

Checks sweep magnifier accuracy and jitter.

Z Axis Operation and Calibrator Checks

Checks Z-axis operation and calibrator functions.

Section 6 Calibration

Introduction

Purpose and necessity of calibration.

Recommended Equipment

List of equipment needed for calibration.

Special Test Equipment

Specific calibration fixtures required.

Calibration Record and Index

Index and record-keeping for calibration steps.

Power Supply Calibration

Steps for calibrating power supply voltages.

CRT Alignment and Geometry Calibration

Calibration steps for CRT alignment and geometry.

Amplifier Gain and Balance Calibration

Steps for calibrating amplifier gains and balance.

Attenuator Compensation and Phasing Calibration

Calibration for attenuator compensation and amplifier phasing.

Sweep and Triggering Calibration

Calibration steps for sweep stability and triggering.

Calibrator Checks

Checks for calibrator accuracy, symmetry, frequency, and jitter.

Abbreviations and Symbols

Parts Ordering Information

Special Notes and Symbols

Explanation of special symbols used in parts list.

Figure and Index Numbers

Indentation System

Explanation of indentation in the mechanical parts list.

Parts Ordering Information

How to order replacement parts.

Abbreviations and Symbols

Reference to abbreviations and symbols.

Mechanical Parts List

Section 8

Section dedicated to mechanical parts.

Fig. 1 Front

Illustration of front panel mechanical parts.

Fig. 2 Switches

Illustration of switch mechanical parts.

Fig. 3 CRT Shield

Illustration of CRT shield mechanical parts.

Fig. 4 Chassis & Rear

Illustration of chassis and rear mechanical parts.

Fig. 5 Cabinet

Illustration of cabinet mechanical parts.

Fig. 6 Standard Accessories

Illustration of standard accessories.

Manual Change Information

Electrical Parts List Correction

Updates and corrections to the electrical parts list.

Schematic Correction

Corrections made to schematic diagrams.

Partial Vertical Amplifier Schematic Correction

Specific corrections for the vertical amplifier schematic.

Partial Horizontal Amplifier Schematic Correction

Specific corrections for the horizontal amplifier schematic.

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