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Tektronix 2465A User Manual

Tektronix 2465A
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Table of Contents

Question and Answer IconNeed help?

Do you have a question about the Tektronix 2465A and is the answer not in the manual?

Tektronix 2465A Specifications

General IconGeneral
TypeOscilloscope
Bandwidth400 MHz
Channels4
Vertical Sensitivity2 mV/div to 5 V/div
Input Impedance1 MΩ ± 2%
Trigger ModesAuto, Single
DisplayCRT
Power Requirements48-440 Hz

Summary

SECTION 1 General Information

Preparation and Safety

Safety precautions, line voltage, and fuse selection for initial instrument setup.

Instrument Setup and Handling

Details on power cord connection, instrument cooling, start-up, and repackaging for shipment.

SECTION 2 Operation

Basic Operation: Display and Fundamentals

Explains fundamentals, getting a display, and characteristics of the AUTO Setup feature.

Vertical Controls and Signal Input

Covers vertical controls, input coupling modes, and video signal conditioning.

Channel and Display Mode Selection

Details channel selection, ADD/INVERT, CHOP/ALT modes, and 20 MHz BW Limit.

Horizontal and Trigger Control Basics

Introduces horizontal sweep controls and fundamental trigger control settings.

Trigger Modes, Sources, and Coupling

Explains trigger modes, sources, and coupling options for stable triggering.

Trigger Level, Holdoff, and Video Triggering

Covers trigger level, holdoff adjustment, and setup for video triggering.

Video Triggering - Line Selection

Guides on triggering at specific video lines and comparing synchronized video signals.

Readout Information and Controls

Explains readout display features, trigger readout, and intensity controls.

Cursor Measurements Overview and Voltage/Time

Introduces cursor measurements for voltage, time, frequency, ratios, and phase.

Frequency, Ratio, and Delta Mode Measurements

Details measuring frequency, ratios, and using delta modes with cursors.

Probe Connections and Compensation

Covers probe connections, fidelity, grounding, and compensation checks.

Magnify Waveform Details with Delayed-Sweep

Guides on using Delayed Sweep to magnify waveform details for analysis.

B-Trigger Operation and Setup

Explains B-Trigger operation, mode distinctions, and setup procedures.

Delta-Delay-Time and Single-Delay-Time Measurements

Describes using delayed sweeps for accurate time interval measurements.

Precision Timing and Measurement Types

Covers precision timing, direct/indirect measurements, and condition messages.

Triggered Delta-Delay-Time Measurements

Details measuring intervals using B-Sweep delays and B Trigger modes.

Measure Time Interval with B Trigger

Provides steps to measure a time interval defined by the B Trigger.

Time Interval Resolution and Measurement Updating

Explains choosing time-interval resolution and measurement update rates.

Frequency, Period, and Totalize Counting

Details performing frequency, period, and totalize counting measurements.

Event Counts, Delay Sweeps, and Menu Functions

Covers totalizing events, delay sweeps, and cancelling menu functions.

Initiate Sweep by Event Count (Delay-by-Events)

Guides on initiating sweeps using event counts with the CTT menu.

Event Count and Trigger Setting Adjustments

Details changing event counts and modifying trigger settings.

Ambiguous Event Counts and Menu Cancellation

Discusses avoiding ambiguous counts and cancelling menu functions.

Logic Triggering and Sweep Initiation

Explains logic triggering and initiating sweeps using CTT and WR.

Sweep Triggering Table and Word Recognizer Operation

Summarizes sweep triggering and details Word Recognizer operation.

Save and Recall Operation Procedures

Covers saving, recalling, and managing instrument setups and sequences.

Recall Procedures and STEP Indicator

Guides on recalling sequences and explains the STEP indicator function.

SECTION 3 Applications

Voltage Measurements

Describes measuring peak-to-peak and absolute voltage levels using cursors.

Signal Analysis Measurements

Covers noise immunity, DC voltage estimation, and amplitude modulation measurements.

Modulation and Video Signal Measurements

Details frequency modulation measurements and video signal analysis in IRE units.

Waveform Analysis Techniques

Explains avoiding false displays and using algebraic addition for interference analysis.

Digital Signal and Interference Measurements

Covers observing digital signal coincidence and cancelling interference.

Period, Frequency, and Common-Mode Signal Elimination

Guides on measuring period/frequency and eliminating common-mode signals.

Rise Time, Fall Time, and Pulse Timing

Details measuring rise time, fall time, and time between pulses.

Slew Rate and Time Ratio Measurements

Explains measuring slew rate and time ratio (duty factor).

Phase Difference and Millivolt Signal Measurements

Covers measuring phase difference and low millivolt signals.

Phase Difference Illustrations

Illustrates phase difference measurements with different display scales.

SECTION 4 Checks and Adjustments

Initial Setup and Trace Alignment

Covers initial setup procedure and trace rotation adjustment for optimal display.

Astigmatism Adjustment and Auto DC Balance

Details astigmatism adjustment for beam shape and the auto DC balance routine.

Probe Compensation Check

Provides instructions for checking and adjusting probe compensation for accuracy.

Channel Delay Matching

Guides on matching Channel 2 delay to eliminate probe-introduced differences.

Amplitude and Timing Checks

Outlines procedures for checking amplitude and timing accuracy.

SECTION 5 Controls, Connectors, and Indicators

Front Panel Controls: Power, Display, Setup, Vertical

Describes power, display, setup, and vertical controls including STEP/AUTO and SAVE/RECALL.

Front Panel Controls: Channel 1/2 and VAR

Details controls for CH 1/2, including BW Limit, VOLTS/DIV, Input Coupling, and VAR.

Front Panel Controls: Channel 3/4, Calibrator, and Ground

Covers CH 3/4 inputs, position controls, VOLTS/DIV, CALIBRATOR, and ground jack.

Front Panel Controls: Horizontal and Trigger

Describes horizontal sweep controls and basic trigger controls.

Horizontal and Trigger Modes, Sources, and Coupling

Explains horizontal modes, delay/delta controls, trigger modes, sources, and coupling.

Rear Panel Connectors and Controls

Details rear panel connectors like GPIB, probe power, gate outputs, and switches.

DMM Controls and Displays

Introduces DMM controls for voltage, current, resistance, continuity, and temperature.

SECTION 6 Performance Characteristics

Performance Conditions

Details environmental and operational conditions for valid electrical characteristic specifications.

Vertical Deflection System Specifications

Lists electrical characteristics for vertical deflection systems, including bandwidth and accuracy.

Horizontal Deflection System Specifications

Provides specifications for sweep time base ranges, accuracy, and jitter.

X-Y Operation and Display Specifications

Covers X-Y operation characteristics, cursor ranges, and graticule details.

Z-Axis Input and Signal Outputs

Lists Z-Axis input sensitivity and signal output specifications.

AC Power Source Specifications

Details AC power source voltage, frequency, fuse rating, and consumption.

Option 01 DMM Electrical Characteristics

Lists detailed electrical characteristics for the DMM option across various functions.

Option 05 TV Electrical Characteristics

Provides electrical characteristics for the TV option, including video signal handling.

Option 06 C/T/T Electrical Characteristics

Details C/T/T option characteristics for frequency, period, counting, and timing.

Option 09 WR Electrical Characteristics

Lists electrical characteristics for the Word Recognizer option.

Option 10 GPIB Electrical Characteristics

Provides electrical characteristics for the GPIB option.

Mechanical Characteristics

Details mechanical specifications including weight, dimensions, and construction.

Environmental Requirements

Lists environmental requirements for temperature, altitude, humidity, shock, and EMI.

SECTION 7 Options and Accessories

Introduction to Options and Accessories

Describes instrument options and accessories available.

Instrument Options: 11, 1R

Details Option 11 for probe power and Option 1R for rackmounting.

Power Cord Options

Lists international power cord options with part numbers.

Standard Accessories

Lists standard accessories provided with each instrument and specific options.

Optional Accessories

Recommends optional accessories such as protective covers and service manuals.

APPENDIX A

Extended Functions with Diagnostic Exercisers

Explains diagnostic exercisers for controlling setup modes, logging, and transferring setups.

GPIB and Exerciser Functions

Details GPIB address programming and message terminator/talk-listen settings.

Setup Transfer and TV System Selection

Covers setup transfer modes and TV system/line numbering selection.

TV Line Numbering, Sync Polarity, and DMM Exerciser

Explains TV sync polarity defaults and DMM continuity/resistance exerciser.

APPENDIX B

Sequence Programming and Operation

Explains organizing and sequentially recalling stored setups using the STEP/AUTO button.

Sequence Editing Modes (REPLACE, INSERT, DELETE)

Details REPLACE, INSERT, and DELETE modes for editing setup sequences.

Executing Sequences

Guides on executing stored sequences and accessing help messages.

APPENDIX C

Power Up Tests Overview

Explains power-up tests ensuring instrument operational confidence.

Confidence Test Numbers and Affected Functions Table

Lists confidence test numbers and the functions affected by failures.

APPENDIX D

Delta-Time and Delta-Delay-Time Accuracy

Presents graphs of Delta-Time and Delta-Delay-Time accuracy for C/T/T Option.

Delay-Time Accuracy under Noted Conditions for C/T/T

Shows graphs illustrating Delay-Time accuracy for C/T/T Option.

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