Tektronix TDS 510A User manual

The test & measurement
equipment you need at
the price you want.
Alltest carries the world’s largest selection of
used/refurbished benchtop test & measurement
equipment at 50% the price of new.
O
Our equipment is guaranteed working, warrantied, and
available with certified calibration from our in-house staff
of technicians and engineers.
• 10+ full time technicians with over 150 years of
specialization
• 90 day warranty & 5 day right of return on all
equipment
•
• 1-3 year warranties for new and
premium-refurbished equipment
• Every unit tested to OEM specifications
• Satisfaction guaranteed
You have plans, we will help you achieve them.
Any project. Any budget.
Get a quote today!
CCall [phone] or email [e-mail].
t
Alltest Instruments, Inc.
500 Central Ave.
Farmingdale, NJ 07727
P: [phone]
F: [phone]
alltest.net
s
[e-mail]

Service Manual
TDS 510A
Digitizing Oscilloscope
070-9704-02
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.

Copyright ©Tektronix, Inc. All rights reserved.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes
that in all previously published material. Specifications and price change privileges reserved.
Printed in the U.S.A.
Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

WARRANTY
Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship
for a period of three (3) years from the date of shipment. If a product proves defective during this warranty period,
Tektronix, at its option, either will repair the defective product without charge for parts and labor, or will provide a
replacement in exchange for the defective product.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the
warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for
packaging and shipping the defective product to the service center designated by Tektronix, with shipping charges prepaid.
Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the
Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any
other charges for products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting
from attempts by personnel other than Tektronix representatives to install, repair or service the product; b) to repair
damage resulting from improper use or connection to incompatible equipment; c) to repair any damage or malfunction
caused by the use of non-Tektronix supplies; or d) to service a product that has been modified or integrated with other
products when the effect of such modification or integration increases the time or difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR
IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’ RESPONSIBILITY TO
REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO
THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE
LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE
OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH
DAMAGES.

Service Assurance
If you have not already purchased Service Assurance for this product, you may do so at any time during the product’s
warranty period. Service Assurance provides Repair Protection and Calibration Services to meet your needs.
Repair Protection extends priority repair services beyond the product’s warranty period; you may purchase up to three
years of Repair Protection.
Calibration Services provide annual calibration of your product, standards compliance and required audit documentation,
recall assurance, and reminder notification of scheduled calibration. Coverage begins upon registration; you may purchase
up to five years of Calibration Services.
Service Assurance Advantages
HPriced well below the cost of a single repair or calibration
HAvoid delays for service by eliminating the need for separate purchase authorizations from your company
HEliminates unexpected service expenses
For Information and Ordering
For more information or to order Service Assurance, contact your Tektronix representative and provide the information
below. Service Assurance may not be available in locations outside the United States of America.
Name VISA or Master Card number and expiration
Company date or purchase order number
Address Repair Protection (1,2, or 3 years)
City, State, Postal code Calibration Services (1,2,3,4, or 5 years)
Country Instrument model and serial number
Phone Instrument purchase date

TDS 510A Service Manual i
Table of Contents
General Safety Summary v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Safety Summary vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications
Specifications 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Product Description 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
User Interface 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Signal Acquisition System 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horizontal System 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trigger System 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acquisition Control 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On-Board User Assistance 1–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Measurement Assistance 1–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage and I/O 1–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Display 1–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nominal Traits 1–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warranted Characteristics 1–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Typical Characteristics 1–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Information
Using This Manual 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before Servicing 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Strategy for Servicing 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Structure 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Conventions 2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tektronix Service 2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finding Other Information 2–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Information 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supplying Operating Power 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Environment 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Applying and Interrupting Power 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repackaging Instructions 2–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installed Options 2–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Operating Instructions 2–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Screen Layout 2–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Basic Procedures 2–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theory of Operation
Circuit Description 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Logic Conventions 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Module Overview 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents
ii TDS 510A Service Manual
Performance Verification
Performance Verification Procedures 4–1. . . . . . . . . . . . . . . . . . . . . . . . . .
Conventions 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brief Procedures 4–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Self Tests 4–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Tests 4–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Tests 4–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prerequisites 4–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment Required 4–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TDS 510A Test Record 4–23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Signal Acquisition System Checks 4–27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time Base System Checks 4–43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trigger System Checks 4–45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Signal Checks 4–58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Option 05 Video Trigger Checks 4–67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sine Wave Generator Leveling Procedure 4–84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment Procedures
Adjustment Procedures 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Requirements for Performance 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Usage 5–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment Required 5–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment Instructions 5–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Probe Adjustment for the P6139A Probe 5–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Display Assembly Adjustment 5–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
Maintenance Information 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedures Not In This Section 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preventing Electrostatic Discharge (ESD) 6–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Cleaning 6–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Care 6–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Cleaning Procedures 6–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal and Installation Procedures 6–9. . . . . . . . . . . . . . . . . . . . . . . . . .
Preparation — Please Read 6–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Access Procedure 6–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedures for External Modules 6–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedures for Outer-Chassis Modules 6–30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedures for Inner-Chassis Modules 6–50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembly for Cleaning 6–58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 6–61. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostics 6–61. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Firmware Updates 6–62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options
Options and Accessories 7–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents
TDS 510A Service Manual iii
Electrical Parts List
Replaceable Electrical Parts List 8–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagrams
Diagrams 9–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols 9–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mechanical Parts List
Replaceable Parts 10–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering Information 10–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Replaceable Parts List 10–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents
iv TDS 510A Service Manual
List of Figures
Figure 2–1: Power-Cord Plug Identification 2–9. . . . . . . . . . . . . . . . . . . .
Figure 2–2: Map of Display Functions 2–14. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–1: Map of Display Functions 4–3. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–2: Verifying Adjustments and Signal-Path Compensation 4–6.
Figure 4–3: Universal Test Hookup for Functional Tests 4–8. . . . . . . . . .
Figure 4–4: Measurement of DC Offset Accuracy at Zero Setting 4–29. . .
Figure 4–5: Initial Test Hookup 4–30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–6: Measurement of DC Accuracy at Maximum Offset
and Position 4–32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–7: Initial Test Hookup 4–34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–8: Optional Initial Test Hookup 4–34. . . . . . . . . . . . . . . . . . . . . . .
Figure 4–9: Measurement of Analog Bandwidth 4–37. . . . . . . . . . . . . . . . .
Figure 4–10: Initial Test Hookup 4–39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–11: Measurement of Channel Delay 4–41. . . . . . . . . . . . . . . . . . . .
Figure 4–12: Initial Test Hookup 4–43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–13: Measurement of Accuracy — Long-Term and
Delay Time 4–45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–14: Initial Test Hookup 4–46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–15: Measurement of Time Accuracy for Pulse and
Glitch Triggering 4–48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–16: Initial Test Hookup 4–49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–17: Measurement of Trigger-Level Accuracy 4–51. . . . . . . . . . . .
Figure 4–18: Initial Test Hookup 4–54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–19: Measurement of Trigger Sensitivity — 50 MHz
Results Shown 4–55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–20: Initial Test Hookup 4–58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–21: Measurement of Main Trigger Out Limits 4–60. . . . . . . . . . .
Figure 4–22: Initial Test Hookup 4–62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–23: Measurement of Probe Compensator Frequency 4–64. . . . .
Figure 4–24: Subsequent Test Hookup 4–65. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–25: Measurement of Probe Compensator Amplitude 4–66. . . . .
Figure 4–26: Jitter Test Hookup 4–68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–27: Jitter Test Displayed Waveform 4–69. . . . . . . . . . . . . . . . . . .
Figure 4–28: Jitter Test When Completed 4–70. . . . . . . . . . . . . . . . . . . . . .
Figure 4–29: Triggered Signal Range Test – 300 mV 4–72. . . . . . . . . . . . . .

Table of Contents
TDS 510A Service Manual v
Figure 4–30: Triggered Signal Range Test – 75 mV 4–73. . . . . . . . . . . . . . .
Figure 4–31: 60 Hz Rejection Test Hookup 4–74. . . . . . . . . . . . . . . . . . . . . .
Figure 4–32: 60 Hz Rejection Test Setup Signal 4–74. . . . . . . . . . . . . . . . . .
Figure 4–33: Subsequent 60 Hz Rejection Test Hookup 4–75. . . . . . . . . . .
Figure 4–34: 60 Hz Rejection Test Result 4–76. . . . . . . . . . . . . . . . . . . . . . .
Figure 4–35: Line Count Accuracy Test Hookup 4–77. . . . . . . . . . . . . . . . .
Figure 4–36: Line Count Accuracy Test Setup Waveform 4–78. . . . . . . . .
Figure 4–37: Line Count Accuracy Correct Result Waveform 4–79. . . . . .
Figure 4–38: Setup for Sync Duty Cycle Test 4–81. . . . . . . . . . . . . . . . . . . .
Figure 4–39: Sync Duty Cycle Test: One-Div Neg Pulse Waveform 4–82. .
Figure 4–40: Sync Duty Cycle Test: Critically Adjusted Pulse 4–83. . . . . .
Figure 4–41: Sine Wave Generator Leveling Equipment Setup 4–85. . . . .
Figure 4–42: Equipment Setup for Maximum Amplitude 4–86. . . . . . . . .
Figure 5–1:Accessing the Protection Switch 5–9. . . . . . . . . . . . . . . . . . . .
Figure 5–2: Hookup for Probe Compensation 5–10. . . . . . . . . . . . . . . . . . .
Figure 5–3: Performing Probe Compensation 5–11. . . . . . . . . . . . . . . . . . .
Figure 5–4: Proper and Improper Probe Compensation 5–12. . . . . . . . . . .
Figure 5–5: Exposing the Inner Probe Tip 5–13. . . . . . . . . . . . . . . . . . . . . .
Figure 5–6: Initial Test Hookup 5–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5–7: Exposing the Probe Body 5–16. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5–8: Initial Test Hookup 5–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5–9: Locations of P6139A Probe Adjustments 5–18. . . . . . . . . . . . .
Figure 5–10:Adjustments versus Front-Corner Response 5–19. . . . . . . . .
Figure 5–11: Five and Ten Percent Luminance Patches 5–21. . . . . . . . . . .
Figure 6–1: External Modules 6–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–2: Outer-Chassis Modules 6–13. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–3: Inner-Chassis Modules 6–14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–5: Knob Removal 6–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–6: Line Fuse and Line Cord Removal 6–19. . . . . . . . . . . . . . . . . .
Figure 6–7: Rear Cover and Cabinet Removal 6–22. . . . . . . . . . . . . . . . . .
Figure 6–8: Front Cover, Trim Ring, Menu Buttons, and Attenuator
Panel Removal (Front Cover not Shown) 6–23. . . . . . . . . . . . . . . . . . . .
Figure 6–9:A12 Front-Panel Assembly 6–25. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–10: Disassembly of Front-Panel Assembly 6–26. . . . . . . . . . . . . .
Figure 6–11: Cabinet Modules Removal 6–29. . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–12:Attenuator Interconnect Cable Routing and
Jack Locations 6–31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents
vi TDS 510A Service Manual
Figure 6–13:A14 D1 Bus and Power Cables Removal 6–33. . . . . . . . . . . .
Figure 6–14: Remove Circuit Board Assembly From Oscilloscope 6–34. .
Figure 6–15: Remove Circuit Board From Assembly 6–35. . . . . . . . . . . . .
Figure 6–16: Circuit Board Installed 6–37. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–17: Proper Routing of the Video Cable 6–38. . . . . . . . . . . . . . . . .
Figure 6–18: Circuit Board Removal 6–39. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–19:A11 Processor/Display Removal 6–41. . . . . . . . . . . . . . . . . . .
Figure 6–20: Board Bracket Removal 6–42. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–21:A11 Processor/Display Removal 6–45. . . . . . . . . . . . . . . . . . .
Figure 6–22: Floppy Disk Removal 6–47. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–23: Rear Chassis Removal 6–49. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–24:A16 Low Voltage Power Supply Removal 6–51. . . . . . . . . . .
Figure 6–26: Display Assembly Removal 6–54. . . . . . . . . . . . . . . . . . . . . . .
Figure 6–27: Display-Driver Board Removal 6–55. . . . . . . . . . . . . . . . . . . .
Figure 6–28: Front Subpanel Removal 6–57. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–29:Accessing the Protection Switch 6–62. . . . . . . . . . . . . . . . . . .
Figure 6–30: Primary Troubleshooting Procedure 6–63. . . . . . . . . . . . . . .
Figure 6–31: Module Isolation Troubleshooting Procedure 6–64. . . . . . . .
Figure 6–32:A16 Low Voltage Power Supply Module Isolation
Troubleshooting Procedure 6–65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–33: Power Supply Voltage Measurement Locations 6–66. . . . . . .
Figure 6–34: Display Troubleshooting Procedure 6–67. . . . . . . . . . . . . . . .
Figure 6–35: Horizontal and Vertical Sync Signals 6–68. . . . . . . . . . . . . . .
Figure 6–36:A Video Signal with White, Black, and Blanking Levels 6–68
Figure 6–37: Processor/Acquisition Troubleshooting Procedure 6–69. . . .
Figure 6–38: Processor/Front Panel Troubleshooting Procedure 6–70. . . .
Figure 6–39: Attenuator/Acquisition Troubleshooting Procedure 6–71. .
Figure 6–40:A11 DRAM Processor/Display Module (View
of Right Side) 6–72. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–41:A11 DRAM Processor/Display Module (View of
Lower Left Corner) 6–73. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 9–1: Interconnections 9–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 9–2: Block Diagram 9–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 10–1: Cabinet and Front Panel 10–5. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 10–2: Outer-Chassis Modules 10–7. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 10–3: Inner-Chassis Modules – A30 Display Shown 10–8. . . . . . . .
Figure 10–4: Cables 10–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 10–5: Floppy Disk 10–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents
TDS 510A Service Manual vii
List of Tables
Table 1–1: Record Length vs. Divisions per Record, Samples Per
Division, and Sec/Div Sequence 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–2: Nominal Traits — Signal Acquisition System 1–9. . . . . . . . . .
Table 1–3: Nominal Traits — Time Base System 1–10. . . . . . . . . . . . . . . .
Table 1–4: Nominal Traits — Triggering System 1–11. . . . . . . . . . . . . . . .
Table 1–5: Nominal Traits — Display System 1–11. . . . . . . . . . . . . . . . . . .
Table 1–6: Nominal Traits — Interfaces, Output Ports, and
Power Fuse 1–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–7: Nominal Traits — Mechanical 1–12. . . . . . . . . . . . . . . . . . . . . .
Table 1–8: Warranted Characteristics — Signal Acquisition System 1–15
Table 1–9: Warranted Characteristics — Time Base System 1–16. . . . . .
Table 1–10: Warranted Characteristics — Triggering System 1–17. . . . .
Table 1–11: Warranted Characteristics — Interfaces, Output Ports
and Power Requirements 1–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–12: Warranted Characteristics — Environmental, Safety,
and Reliability 1–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–13: Typical Characteristics — Signal Acquisition System 1–19. .
Table 1–14: Typical Characteristics — Time Base System 1–20. . . . . . . . .
Table 1–15: Typical Characteristics — Triggering System 1–20. . . . . . . .
Table 1–16: Typical Characteristics — Data Handling 1–22. . . . . . . . . . . .
Table 1–17: Certifications and compliances 1–23. . . . . . . . . . . . . . . . . . . . .
Table 2–1: Power-Cord Conductor Identification 2–8. . . . . . . . . . . . . . . .
Table 2–2: Effects of Corrupted Data 2–11. . . . . . . . . . . . . . . . . . . . . . . . . .
Table 4–1: Test Equipment 4–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 4–2: DC Offset Accuracy (Zero Setting) 4–28. . . . . . . . . . . . . . . . . .
Table 4–3: DC Voltage Measurement Accuracy 4–31. . . . . . . . . . . . . . . . .
Table 4–4: Analog Bandwidth 4–35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 4–5: Delay Between Channels Worksheet 4–42. . . . . . . . . . . . . . . . .
Table 5–1: Calibration Tests 5–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 5–2: Adjustments Required for Module Replaced 5–4. . . . . . . . . .
Table 5–3: Adjustments and Dependencies 5–4. . . . . . . . . . . . . . . . . . . . .
Table 5–4: Test Equipment, Fixtures, and Supplies 5–5. . . . . . . . . . . . . .
Table 5–5: GPIB Board Configuration1 5–7. . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents
viii TDS 510A Service Manual
Table 6–1: Relative Susceptibility to Static-Discharge Damage 6–2. . . . .
Table 6–2: External Inspection Check List 6–6. . . . . . . . . . . . . . . . . . . . .
Table 6–3: Internal Inspection Check List 6–7. . . . . . . . . . . . . . . . . . . . . .
Table 6–4: Tools Required for Module Removal 6–11. . . . . . . . . . . . . . . . .
Table 6–5: Normal Supply Voltages (Measured on J26 and J27 on
the A11 DRAM Processor/Display Module) 6–66. . . . . . . . . . . . . . . . .
Table 6–6: No-Load Supply Voltages (Measured on J5 and J6 on the
A17 Main LV Power Supply Module) 6–66. . . . . . . . . . . . . . . . . . . . . .
Table 7–1: International Power Cords 7–1. . . . . . . . . . . . . . . . . . . . . . . . .
Table 7–2: Standard Accessories 7–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 7–3: Probe Accessories 7–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 7–4: Optional Accessories 7–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 7–5: Probe Accessories 7–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 7–6: Accessory Software 7–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 7–7: 7–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TDS 510A Service Manual ix
General Safety Summary
Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it.
To avoid potential hazards, use this product only as specified.
Only qualified personnel should perform service procedures.
Use Proper Power Cord. To avoid fire hazard, use only the power cord specified
for this product.
Avoid Electric Overload. To avoid electric shock or fire hazard, do not apply a
voltage to a terminal that is outside the range specified for that terminal.
Avoid Electric Shock. To avoid injury or loss of life, do not connect or disconnect
probes or test leads while they are connected to a voltage source.
Ground the Product. This product is grounded through the grounding conductor
of the power cord. To avoid electric shock, the grounding conductor must be
connected to earth ground. Before making connections to the input or output
terminals of the product, ensure that the product is properly grounded.
Do Not Operate Without Covers. To avoid electric shock or fire hazard, do not
operate this product with covers or panels removed.
Use Proper Fuse. To avoid fire hazard, use only the fuse type and rating specified
for this product.
Do Not Operate in Wet/DampConditions. To avoid electric shock, do not operate
this product in wet or damp conditions.
Do Not Operate in an Explosive Atmosphere. To avoid injury or fire hazard, do not
operate this product in an explosive atmosphere.
Use Proper Power Source. Do not operate this product from a power source that
applies more than the voltage specified.
Provide Proper Ventilation. To prevent product overheating, provide proper
ventilation.
Do Not Operate With SuspectedFailures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.
Injury Precautions
Product Damage
Precautions

General Safety Summary
xTDS 510A Service Manual
Terms in this Manual. These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.
Terms on the Product. These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read the
marking.
WARNING indicates an injury hazard not immediately accessible as you read the
marking.
CAUTION indicates a hazard to property including the product.
Symbols on the Product. The following symbols may appear on the product:
ProtectiveGround
(Earth)Terminal ATTENTION Refer to Manual Double Insulated
DANGER
High Voltage
Symbols and Terms

TDS 510A Service Manual xi
Service Safety Summary
Only qualified personnel should perform service procedures. Read this Service
Safety Summary and the General Safety Summary before performing any service
procedures.
Do Not Service Alone. Do not perform internal service or adjustments of this
product unless another person capable of rendering first aid and resuscitation is
present.
Disconnect Power. To avoid electric shock, disconnect the main power by means
of the power cord or, if provided, the power switch.
Use Caution When Servicing the CRT. To avoid electric shock or injury, use
extreme caution when handling the CRT. Only qualified personnel familiar with
CRT servicing procedures and precautions should remove or install the CRT.
CRTs retain hazardous voltages for long periods of time after power is turned off.
Before attempting any servicing, discharge the CRT by shorting the anode to
chassis ground. When discharging the CRT, connect the discharge path to ground
and then the anode. Rough handling may cause the CRT to implode. Do not nick
or scratch the glass or subject it to undue pressure when removing or installing it.
When handling the CRT, wear safety goggles and heavy gloves for protection.
Use Care When Servicing With Power On. Dangerous voltages or currents may
exist in this product. Disconnect power, remove battery (if applicable), and
disconnect test leads before removing protective panels, soldering, or replacing
components.
To avoid electric shock, do not touch exposed connections.
X-Radiation. To avoid x-radiation exposure, do not modify or otherwise alter the
high-voltage circuitry or the CRT enclosure. X-ray emissions generated within
this product have been sufficiently shielded.

Service Safety Summary
xii TDS 510A Service Manual

TDS 510A Service Manual xiii
Preface
This preface contains information needed to properly use this manual to service
the TDS 510A Digitizing Oscilloscope, as well as general information critical to
safe and effective servicing of this oscilloscope.
Manual Structure
This manual is divided into sections, such as Specification and Theory of
Operation.Further, it is divided into subsections, such as Product Description
and Removal and Installation Procedures.
Sections containing procedures also contain introductions to those procedures.
Be sure to read these introductions because they provide information needed to
do the service correctly and efficiently. The following is a brief description of
each manual section.
HSpecification contains a product description of the TDS 510A Digitizing
Oscilloscope and tables of the characteristics and descriptions that apply to
it.
HOperating Information includes general information and operating instruc-
tions at the level needed to safely power on and service this oscilloscope. A
statement of the service strategy that this manual supports, and instructions
for shipment of the oscilloscope are found in this section.
HTheory of Operation contains circuit descriptions that support general service
and fault isolation.
HPerformance Verification contains a collection of procedures for confirming
that this oscilloscope functions properly and meets warranted limits.
HAdjustment Procedures contains a collection of procedures for adjusting this
oscilloscope to meet warranted limits.
HMaintenance contains information and procedures for doing preventive and
corrective maintenance of this oscilloscope. Instructions for cleaning, for
module removal and installation, and for fault isolation to a module are
found here.
HOptions contains information on servicing any of the factory-installed
options that may be present in your oscilloscope.
HElectrical Parts List contains a statement referring you to Mechanical
Replaceable Parts, where both electrical and mechanical modules are listed.