Tektronix TDS520A, TDS524A, TDS540A, TDS544A manual

TDS 520A, 524A, 540A, & 544A

Digitizing Oscilloscopes

070-8712-01

Performance Verification

Please check for change information at the rear

of this manual.

First Printing: July 1993.

Contents

Main Page WARRANTY Page Welcome Related Manuals Page Table of Contents Performance Verification Procedures Specifications Safety Summary Symbols and Terms CAUTION DANGER Specific Precautions Page Page Brief Procedures General Instructions Conventions Initialize the oscilloscope Brief Procedures TDS 520A, 524A, 540A, & 544A Performance Verification Figure 1-1: Map of Display Functions Self Tests Verify Internal Adjustment, Self Compensation, and Diagnostics Run the signal-path compensation: Wait: Return to regular service: Confirm signal-path compensation returns passed status: Fail Functional Tests operate Performance Tests Hook up the signal source: Verify that all input channels operate: Verify that the channel acquires in all acquisition modes: Verify that the channel is operational: skipping substep Test all channels: TDS 520A and 524A Only: Verify auxiliary inputs operate: Verify that the channel acquires in all acquisition modes: Verify that the channel is operational: Set up the selected channel: Verify the Time Base Verify the Main and Delayed Trigger Systems Page Verify the File System (Optional on TDS 520A and 540A) Insert the test disk: Hook up the signal source: Verify the file system works: Remove the test hookup: Page Performance Tests Prerequisites Related Information Equipment Required Page Page Page Test Record Page Page Page Check Accuracy of Offset (Zero Setting) Signal Acquisition System Checks Set the vertical scale: Check DC Gain and Voltage Measurement Accuracy Install the test hookup and preset the instrument controls (see Fig- ure 1-5): Page Reestablish the initial test hookup setup: Confirm input channels are within limits for DC accuracy at maximum offset and position: skipping substep a since CH 1 is already selected from step 3. Set its vertical scale: CHx Select an unchecked channel: Page Set the generator output to 0 V Check Analog Bandwidth Confirm the input channels are within limits for analog bandwidth: skipping substeps Set the vertical scale: a and b since CH 1 is already set up for testing from step 1. CHx Page Check Delay Between Channels See page 1-15. Initialize the front panel; Page Page Check Accuracy for Long-Term Sample Rate, Delay Time, and Delta Time Measurements Time Base System Checks Confirm Main and Delayed time bases are within limits for accuracies: Measure the test signal Check long-term sample rate and delay time accuracies against limits: Check delta-time accuracy against limits: Check Accuracy (Time) for Pulse-Glitch or Pulse-Width Triggering Trigger System Checks : decrease increase Set the trigger mode: Set upper and lower limits that ensures triggering: Page decrease Check Accuracy, Trigger-level or Threshold, DC Coupled Select Delayed Triggerable: Confirm Main trigger system is within limits for Trigger-level/Threshold accuracy: Confirm Delayed trigger system is within limits for Trigger-level/Threshold accuracy: Select the Delayed time base: side-menu button Select the Delayed trigger system: First set the output of the DC calibration generator to 0 volts. Sensitivity, Edge Trigger, DC Coupled See page 1-15. Confirm Main and Delayed trigger systems are within sensitivity limits (50 MHz): Check for Main trigger system for stable triggering at limits: Check delayed trigger system for stable triggering at limits: menu side Confirm the AUX Trigger input: Check the AUX trigger source for stable triggering at limits: Confirm that the Main and Delayed trigger systems are within sensitivity limits (500 MHz): Set the Main and Delayed Horizontal Scales: Page Output Signal Checks Check Outputs CH 3 and Main and Delayed Trigger (TDS Confirm Main and Delayed Trigger outputs are within limits for logic levels: Measure logic levels: Ch2 Check Main Trigger output against limits: Check Delayed Trigger output against limits: Ch2 Confirm CH 3 output is within limits for gain: Measure gain: Check Probe Compensator Outputs Confirm that the Probe Compensator signal is within limits for frequency: Measure the frequency of the probe compensation signal: Confirm that the Probe Compensator signal is within limits for amplitude: Save the probe compensation signal in reference memory: Ch 1 Hook up the DC standard source: Measure amplitude of the probe compensation signal: Page Check Video Trigger Option 05 Video Trigger Checks Page Page Page Page Page Page Page 100divs Page Page Page You may need to adjust the trigger level control to obtain a stable trigger. Page Page Page Page Page Specifications nominal traits, warranted char- acteristics, General Product Description User Interface Menus main side Indicators Signal Acquisition System Horizontal System Trigger System Help Autoset Cursor Acquisition Control On-Board User Assistance Measurement Assistance Measure Storage and I/O Digital Signal Processing (DSP) Display Display Zoom Nominal Traits nominal traits Page Page Page Page Page Warranted Characteristics warranted characteristics In these tables, those warranted characteristics that are checked in the procedure , found in Section 1, appear in boldface type under the column Page Page Page Page Page Typical Characteristics Page minimum maximum