Service Manual
TS200 TelScout
Access Network Analyzer
071-0070-02
This document applies to firmware version 2.00
and above.
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.
www.tektronix.com
Copyright © T ektronix, Inc. All rights reserved.
T ektronix 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.
T ektronix, Inc., P.O. Box 500, Beaverton, OR 97077
TEKTRONIX and TEK are registered trademarks of T ektronix, Inc.
WARRANTY
T ektronix warrants that the products that it manufactures and sells will be free from defects in materials and
workmanship for a period of one (1) year from the date of purchase from an authorized T ektronix distributor. If
any such product proves defective during this warranty period, T ektronix, 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. Batteries are excluded from this warranty.
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 T ektronix,
shipping charges prepaid, and with a copy of customer proof of purchase. Tektronix shall pay for the return of the
product to Customer if the shipment is to a location within the country in which the T ektronix 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. T ektronix shall not be obligated to furnish service under this warranty a) to repair damage
resulting from attempts by personnel other than T ektronix 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-T ektronix 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 WITH RESPECT TO THE LISTED PRODUCTS IN
LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS
DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
P ARTICULAR 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.
Table of Contents
General Safety Summary
General Safety Summary vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Injury Precautions vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Terms and Symbols ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface
Preface xi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contacting Tektronix xi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assumptions xii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before Servicing xii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What You Will Find in this Manual xii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Related Documents xiii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T ektronix Service xiii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction
Overview 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Functional Modules 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Static-Sensitive Components 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Controls, Indicators, and Connectors 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Display/Indicators 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Controls 1–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connectors 1–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specification Tables 1–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TS200 Characteristic T ables 1–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories and Options 1–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Standard Accessories 1–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Accessories 1–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Operating System Software 1–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Instrument Configuration Options 1–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TS200 Options 1–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TelScout TS200 Access Network Analyzer Service Manual
i
Table of Contents
Theory of Operation
Block Diagram 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Descriptions 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Board A1 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Board A2 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Display Assembly 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keyboard 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Battery 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC-to-DC External Adapter 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Backlight Inverter 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Verification
Required Equipment 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check Port Configurations 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TDR 3–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check Crosstalk 3–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check Dual Displays 3–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Verify Pulse Widths and Heights 3–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check Smoothing 3–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TDR Distance Measurement Accuracy 3–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
POTS 3–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC Volts 3–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC Volts 3–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loss and Slope 3–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Metallic Noise / Power Influence 3–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T one Generator 3–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VOM Ohms 3–21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Resistance Fault Locator 3–22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loop Current 3–24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Longitudinal Balance 3–25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Capacitance (Open) Meter 3–25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pulse Dialer 3–27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTMF Dialer 3–28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Load Coils, 66 mH / 88 mH 3–30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TS200 T est Record 3–31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
ii
Inspection and Cleaning 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior Inspection 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior Cleaning 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Inspection 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Cleaning 4–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Software Downloading 4–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional T esting 4–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal / Installation Procedures 4–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Required Equipment 4–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembly Procedures 4–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reassembly 4–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Longitudinal Balance Adjustment 4–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 4–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TelScout TS200 Access Network Analyzer
Service Manual
Required Equipment 4–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setup for Troubleshooting 4–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 4–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replaceable Parts
Replaceable Parts 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering Information 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Module Servicing 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Replaceable Parts List 5–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replaceable Electrical Modules 5–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replaceable Mechanical Parts 5–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wire and Cable Assemblies 5–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supplemental Information
Multi-Test Fixture 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Count Load Coils 66 MH 6-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Count Load Coils 88 MH 6-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multi-T est Fixture Calibration and Performance Verification 6-5. . . . . . . . . . . . . . .
Index
Table of Contents
TelScout TS200 Access Network Analyzer Service Manual
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Table of Contents
List of Figures
Figure 1–1: Front-Panel Controls, Indicators, and Connectors 1–3. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1–2: Arrangement of the Readout Bar in TDR Mode 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–1: TS200 Block Diagram 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–1: TS200 with Standard Test Leads Attached 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–2: TDR Performance Checks 3–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–3: Verify 2 ns and 10 ns Pulse Widths and Heights 3–5. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–4: Example of Initial Pulse 3–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–5: Verify Pulse Widths / Heights ( 75 ns 340 ns and 3400 ns) 3–7. . . . . . . . . . . . . . . . . .
Figure 3–6: Example of Peak to Peak Pulse 3–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–7: Check TDR Distance Accuracy 3–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–8: Measure DC Volts 3–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–9: Loss Slope (T one Receiver) Performance Check 3–14. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–10: Psophometric / C-Message Filter Frequency 3–17. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–11: Measure Metallic Noise / Power Influence 3–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–12: Tone Generator Performance Check 3–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–13: VOM Ohm Performance Check 3–21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–14: Resistance Fault Locator Performance Check 3–22. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–15: Sample Display to Verify Readouts 3–23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–16: Loop Current Performance Check 3–24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–17: Longitudinal Balance Performance Check 3–25. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–18: Open Capacitance Meter Performance Check 3–25. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–19: Pulse Dialer Performance Check 3–27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–20: Typical Waveform for Dialer Performance Check 3–28. . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–21: DTMF Dialer Performance Check 3–29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–22: Load Coil Performance Checks 3–30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–1: Battery Removal 4–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–2: Opening the TS200 Instrument 4–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–3: Disconnecting Circuit Board Assembly A1 Cable Attachments 4–7. . . . . . . . . . . . . .
Figure 4–4: Removing Circuit Board Assembly A1 4–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–5: Disconnecting Circuit Board Assembly A2 Cables 4–8. . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–6: Preparing to Remove Circuit Board Assembly A2 4–8. . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–7: Removing Circuit Board Assembly A2 4–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–8: Removing More Cable Assemblies 4–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–9: Removing the Speaker Cable Assembly 4–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Table of Contents
Figure 4–10: Preparing to Remove the Support Plate Assembly 4–11. . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–11: Removing the Support Plate Assembly 4–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–12: Disassemble the Support Plate; Remove DC–AC Converter Board A3 4–12. . . . . . .
Figure 4–13: Removing the LCD Display Module A4 Assembly 4–12. . . . . . . . . . . . . . . . . . . . . . .
Figure 4–14: Removing the LCD Plate Assembly and Flex Circuit 4–13. . . . . . . . . . . . . . . . . . . . .
Figure 4–15: Disassembling the T op Case–half 4–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–16: Installing the Display Window 4–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–17: POTS Longitudinal Balance Adjustment 4–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5–1: Exploded View, Replaceable Mechanical Parts 5–6. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–1: Multi-T est Fixture Front Panel 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–2: Multi-Test Fixture Schematics 6–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
List of Tables
Table 1–1: TS200 Functional Modules 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 1–2: Environmental Performance Conditions 1–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 1–3: Certifications and Compliances 1–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 1–4: Safety Requirements 1–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 1–5: Reliability 1–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 1–6: Physical Characteristics 1–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 1–7: Base Product Characteristics 1–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 1–8: TDR Characteristics 1–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 1–9: POTS Characteristics 1–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 1–10: Load Coil TestWizard Characteristics 1–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 3–1: 2 ns and 10 ns Pulse Specifications 3–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 3–2: 75 ns, 340 ns, 3400 ns Pulse Specifications 3–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 3–3: Psophometric and C-Message Filter Frequency Responses 3–18. . . . . . . . . . . . . . . . . . .
T able 3–4: C–Message Noise and Power Influence Values 3–20. . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 3–5: TelScout TS200 Test Record 3–31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 4–1: Serial Cable Pinout Chart 4–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 6–1: Required Equipment for Calibration / Performance Verification 6–5. . . . . . . . . . . . . .
T able 6–2: Multi-Test Fixture Calibration and Performance Test Record 6–7. . . . . . . . . . . . . . . .
TelScout TS200 Access Network Analyzer Service Manual
v
Table of Contents
vi
TelScout TS200 Access Network Analyzer
Service Manual
General Safety Summary
Review the following safety precautions to avoid injury and prevent
damage to this product or any products connected to it.
CAUTION. Refer all repair problems to qualified service personnel. See
the Preface chapter for a list of phone numbers to call for service
information.
Injury Precautions
Power Source
The TS200 analyzer is designed to operate from an internal rechargeable
battery pack or an external battery charger/adapter. The internal power is
provided by a 9-cell, 3.5 Ah NiMH battery pack with an integral fuel
gage circuit. The external power source supplies 24 DC volts at 1.5 A to
the instrument.
Battery Pack
Do not expose the battery pack to fire or intense heat. Do not open or
mutilate the battery pack. Avoid contact with released electrolyte which
is corrosive and may damage eyes, skin, and clothing. Check with local
codes for special disposal instructions. Only the entire battery is
replaceable. Individual cells are not replaceable.
Always disconnect the test leads and turn off the instrument before
disconnecting the battery pack.
To reduce environmental pollution, the battery must be recycled.
Disconnect battery when stored for long periods of time.
CAUTION. Do not charge the battery in a gas-tight container.
Do not short the battery terminals.
Do not incinerate the battery.
Flush with water at once if contact is made with electrolyte.
TelScout TS200 Access Network Analyzer Service Manual
vii
General Safety Summary
External Power
Use only the power charger/adapter that is specified for the TS200.
CAUTION. The power charger/adapter is not designed for outdoor use.
Use in an indoor environment only.
Grounding the Instrument
It is not necessary to ground the instrument during normal use. Cases are
non-conductive and internal voltages are not accessible to the operator.
Fuse
The TS200 contains a 1.5-amp, 30-volt, surface mounted self resetting
fuse on the TDR board. The fuse is not user replaceable.
Do Not Operate in Explosive Atmosphere
Do not operate the instrument in an explosive atmosphere unless it has
been specifically certified for such operation.
Do Not Remove Covers or Panels
To avoid personal injury, do not remove the instrument covers or panels,
nor operate the instrument without covers and panels in place. Refer
service to qualified service personnel.
Electromagnetic Emissions
The TS200 has been verified for compliance to FCC Class A and
European Union EMC.
Disposal of Batteries
This instrument contains a NiMH battery pack. Some states and/or local
jurisdictions might require special disposition/recycling of this type of
material in accordance with Hazardous Waste guidelines. Check your
local and state regulations prior to disposing of an old battery.
For the location of a local battery recycler in the U.S. or Canada, please
contact:
viii
RBRC (800) BATTERY
Rechargeable Battery Recycling Corp. (800) 227-7379
P.O. Box 141870 www.rbrc.com
Gainesville, Florida 32614
TelScout TS200 Access Network Analyzer Service Manual
Safety Terms and Symbols
Terms 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
DANGER indicates an injury hazard immediately accessible as you read
the marking.
General Safety Summary
High Voltage
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
DANGER
Protective Ground
(Earth) T erminal
ATTENTION
Refer to
Manual
TelScout TS200 Access Network Analyzer Service Manual
ix
General Safety Summary
x
TelScout TS200 Access Network Analyzer Service Manual
Preface
Contacting Tektronix
This manual provides module level servicing information for the
TelScout TS200 Access Network Analyzer. It does not contain component-level service information. However, the Supplemental Information
chapter does contain component-level schematics of the multi-test
fixture which is required for performance verification testing.
Phone 1-800-833-9200*
Address Tektronix, Inc.
Department or name (if known)
14200 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA
Web site www.tektronix.com
Sales support 1-800-833-9200, select option 1*
Service support 1-800-833-9200, select option 2*
Technical support Email: support@tektronix.com
1-800-833-9200, select option 3*
1-503-627-2400
6:00 a.m. – 5:00 p.m. Pacific time
* This phone number is toll free in North America. After office hours, please
leave a voice mail message.
Outside North America, contact a Tektronix sales office or distributor; see
the Tektronix web site for a list of offices.
TelScout TS200 Access Network Analyzer Service Manual
xi
Preface
Assumptions
Before Servicing
The procedures in this manual assume that you are a qualified electronics
technician and have a working knowledge of servicing procedures for
metallic time-domain reflectometry test equipment and POTS test
equipment.
The procedures also assume you are familiar with and practice clean,
static control measures.
To prevent injury to yourself or damage to equipment:
H You must be a qualified service person.
H Read the General Safety Summary at the beginning of this manual.
H Heed all warnings, cautions, and notes in this manual.
What You Will Find in this Manual
Section 1. Introduction. Contains product information, user information,
battery recharging and replacement information, instrument specifications, characteristic tables, accessories, and options.
Section 2. Theory of Operations. Shows the functional relationship of
the modules.
Section 3. Performance Verification. Checks TS200 performance to
verify correct operation after repairs and adjustments have been made.
Section 4. Maintenance. Includes:
H Inspection and cleaning of exterior, connectors, and test cables.
H Disassembly procedure to module level.
H Troubleshooting problems to module level.
H Resolving error messages displayed on the screen.
Section 5. Replaceable Parts. Lists and describes replaceable electrical
and mechanical parts.
Section 6: Supplemental Information. Multi-Test Fixture reference panel
and schematics. This fixture is for calibration and performance testing on
the TS200.
xii
TelScout TS200 Access Network Analyzer Service Manual
Related Documents
Tektronix Service
Preface
The TelScout TS200 Series Access Network Analyzer User Manual
explains how to use the TS200 analyzer to test telephone cables. The
user manual is translated into ten languages. See Accessories.
Tektronix provides service to cover repair under warranty and post-warranty problems.
The TS200 Access Network Analyzer is warranted for one year. The
warranty appears at the beginning of this manual.
TelScout TS200 Access Network Analyzer Service Manual
xiii
Preface
xiv
TelScout TS200 Access Network Analyzer Service Manual
Introduction
Overview
The Functional Modules
This manual is used for servicing the TS200 to module level only. A module is
defined as a complete circuit board assembly or other electrical part that
performs a specific function.
When a problem is traced to a module, the usual corrective procedure is to
replace the module.
This manual does not contain:
H Component-level troubleshooting or calibration information.
H Information pertaining to component replacement or module repair.
H Circuit board schematics.
H Component-level electrical parts lists or information.
There are four functional modules in the TS200.
T able 1–1: TS200 Functional Modules
Module Module Name Function Assembly
POTS board Telephone service
TDR board Option 01 Assembly
Number
A1
measurements
A2
MTDR, power, control, external access
TelScout TS200 Access Network Analyzer Service Manual
1–1
Introduction
T able 1–1: TS200 Functional Modules (Cont.)
Module Assembly
Static-Sensitive Components
CAUTION. All modules in the TS200 contain components that are sensitive to
electrostatic discharge (ESD).
When servicing the TS200, work only at a static-free work station, and practice
standard anti-static handling procedures.
FunctionModule Name
Power supply board DC–AC converter
for backlight
Display module Display (LCD)
assembly with backlight
Number
A3
A4
1–2
TelScout TS200 Access Network Analyzer Service Manual
Operation
The following information describes the product and the operating features of the
product.
The Tektronix TS200 TelScout Access Network Analyzer consists of three
separate but related product configurations. The loop-test configurations include
a TDR unit, a POTS only unit, and a combined TDR and POTS unit. The TS200
allows customers to analyze and troubleshoot the access network for analog or
digital services. It is designed specifically for telephone access network
applications, including xDSL, ISDN, and POTS.
Controls, Indicators, and Connectors
The TS200 controls are described briefly in this chapter.
Introduction
Figure 1–1: Front-Panel Controls, Indicators, and Connectors
Display/Indicators
LCD Display
The display will convey three distinct kinds of information to the operator at all
times: operating mode (current status), softkey labels, and the data operating
TelScout TS200 Access Network Analyzer Service Manual
1–3
Introduction
Display Organization: TDR
information. The measurement display shows numerical data in a readout bar at
the bottom of the data/information window.
The current operating mode of the instrument is displayed on the top status line
of the display, above the framed data window, which is above the bottom seven
lines reserved for softkey labels and dialog. When the instrument needs to
display additional information in a message to the operator, it will appear in the
dialog test box.
Current setting of
Velocity of Propagation
Pulse width in nanoseconds
(not visible in TestWizard
Zoom Off mode)
Distance from marker to cursor
(if marker is set and not visible
in TestWizard mode)
Vp 60.0 ft12 dB0.660 GAIN 12 dB PW 5 ns
Current gain setting in decibels
(not visible in TestWizard
Zoom Off mode)
Figure 1–2: Arrangement of the Readout Bar in TDR Mode
Vp: Velocity of Propagation. In Auto TDR and TestWizard, this is set in the
selection of the cable type being used. In Manual TDR, this can be changed from
the measurement display.
GAIN: This is set with (Y B) while no softkey is active. The visual result of
increasing the gain is to increase the height of the displayed waveform. It might
also bring out an event that is barely noticeable.
PW: Pulse width is shown in the Readout Bar when the measurement display is
in Auto or Manual TDR mode. PW is selectable in Manual TDR through the
Pulse softkey. In the Auto TDR or TestWizard modes, the pulse width selection
is automatically made by the instrument and is dependent on the distance from
the instrument, cable dielectric, etc.
ERL DIST
Current return loss in dB
(RL or ERL)
n
Distance to clip end
of test leads to current
cursor location
1–4
RL or ERL: RL is the Return Loss and ERL is the Event Loss. This box can be
turned off from the More Setups menu.
TelScout TS200 Access Network Analyzer Service Manual
n
Display Organization:
POTS
Introduction
n: The delta symbol indicates a difference-distance. When a marker (◆) is
placed on the waveform display, the instrument calculates the distance from the
marker to the current cursor location and displays the number in this box. If no
marker is placed, this box is not shown.
DIST: This is always the distance from the clip end of the test leads to the current
cursor location. Distance to the cursor can be shown in feet, meters, or nanoseconds.
Display organizations vary for POTS measurements. The current operating mode
of the instrument is displayed on the top status line of the display, above the
framed data window, which is above the bottom seven lines reserved for softkey
labels and dialog. When the instrument needs to display additional information
in a message to the operator, it will appear in the dialog test box.
Indicators
NiMH Battery icons
Full charge
3/4 charge
1/2 charge
1/4 charge
Recharge now
ACĆDC adapter/
charger in use
Alkaline Battery icons
Full charge
3/4 charge
1/2 charge
1/4 charge
Near Empty
AC-DC adapter/charger ico
Power On / Off Indicator: A five-level battery-status indicator, located in the
upper right corner of all displays, shows the battery-charge level. A low-battery/
power-off message is displayed when the battery level is too low for safe
operation (the dialog box will indicate low batt and the audible warning beeps
when the low battery message is first displayed). When this happens, connect the
charger/adapter to the instrument. If alkaline batteries are being used, replace all
ten cells at the same time. If you are using a NiMH battery pack, you can
continue using the TS200 on AC power while the battery is recharging. The
NiMH battery should be fully discharged and then fully recharged periodically.
Speaker On / Off Indicator: An icon is located on the display just to the left of
the power indicator. It will show that the speaker is currently either on or off.
TelScout TS200 Access Network Analyzer Service Manual
1–5
Introduction
Controls
All operator controls are elastomeric-technology push buttons.
Hard Buttons
POWER: This button turns the TS200 on and off.
HELP: Pressing HELP displays detailed information about the current
operation being performed by the TS200. The HELP function provides
information on the operation of each of the instrument controls.
The help displays are context-sensitive pop-up windows that overlay the current
display when you press the HELP button. In each of the measurement modes,
the help display describes the current mode and provides access to additional
help on how to use the front-panel controls.
Press HELP a second time to remove the help display.
In selected menus, Lesson softkeys are available, which provide tutorial
information about using the TS200, Auto TDR, Manual TDR, cable selection,
printing, and transferring data.
TestWizard: Pressing the TestWizard button initiates a simplified measurement
mode for TDR, POTS, xDSL, or Load Coil.
TestWizard TDR measurement mode prompts the user for any required
information. It requires minimal decisions on the user’s part and displays a
mosaic waveform with all significant events (at or above the predefined
threshold) marked and numbered.
TestWizard POTS measurement mode has five sequential displays, with the
option of continuing from one display to the next or going back to the previous
test. The xDSL TestWizard measurement mode has a single display with the
most common tests used for xDSL line qualifications. The Load Coil TestWizard
detects and locates up to two missing load coils on a properly spaced line.
BACKLIGHT: Press this button to switch the display backlight on and off. The
default at power-up is with the backlight off. Press the backlight button to turn
on the backlight. The backlight stays on as long as the user continues to press
buttons or softkeys.
1–6
The backlight automatically turns off, using the specified default time from the
More Setups menu, after the user stops pressing any buttons (one minute is the
TS200 default, but it is user adjustable).
The user can turn the backlight on again by pressing the Backlight button.
TelScout TS200 Access Network Analyzer Service Manual
Scroll Controls
Softkeys
Introduction
SPEAKER: Press this button to turn on/off the speaker. You can perform
operations eliminating unwanted sounds and alerts.
In the lower right area of the front panel is a five-button group (up-down-leftright-center). The arrow buttons serve the functions of moving the cursor left and
right across the displayed waveform or changing values (A "), scrolling
through a menu or changing values (Y B), and scrolling pages (
These buttons have an accelerated repeating function when operated with
continued pressure.
There are six softkeys across the bottom of the LCD and two at the right side.
These are called softkeys because their labels are displayed on the LCD. Their
functions vary according to the instrument function.
◆ + Y B).
The softkeys are used in three different ways: function change, item selection,
and item toggle.
In the function change use, the softkey is briefly displayed in reverse video
(black box around white letters) until the function or mode change is complete.
After the function or mode change, the softkey label returns to normal, possibly
with a different label. An example of this type of operation is: changing from
measurement mode to setup mode.
In item selection, the softkey label is displayed in reverse video when the key is
pressed and remains in that state until pressed again or a different softkey is
pressed. Usually, pressing an item-selection softkey enables the up and down
arrow keys to change the value of the selected item. Examples of item selections
are: span, pulse, vertical position, and Vp in the manual measurement mode;
baud rate in the printer setup mode. Value changes might also be displayed in
another manner, such as the distance scale change when
is pressed in Auto TDR mode.
Cable
In item toggle, the softkey label toggles from an on to off to on form. Whichever
is active at the moment will be shown in reverse video. An example of this is:
Zoom On / Zoom Off.
More Cable or Less
TelScout TS200 Access Network Analyzer Service Manual
1–7
Introduction
Connectors
AC–DC Adapter/Charger: This connector provides a jack for connecting to the
battery charger/adapter.
Black
Red
Green
Yellow
Instrument Settings
TEST: This connector consists of two standard-size banana jacks (one red, one
black) for connecting to the test pair of the cable under test.
REFERENCE: This connector consists of two standard-size banana jacks (one
yellow, one green) for connecting to the reference pair of the cable under test.
Serial Port: This connector provides a subminiature DB-9 IBM PC-AT-compatible serial port. Use this connector to connect a printer, and to transfer data
between the TS200 and an IBM PC (or compatible).
When you power on the instrument, the TS200 shows a display indicating that
the initialization sequence is in progress. The instrument returns to the same
settings in place when the power was last turned off, except for the following
setups:
PowerĆon Test Type, Auto Event Locator Threshold, and Smoothing.
1–8
TelScout TS200 Access Network Analyzer Service Manual
Specification Tables
Introduction
T able 1–2: Environmental Performance Conditions
REQUIREMENT SPECIFICATION
Temperature
Operational Specs, Guaranteed
Humidity Operating: 10 to 95% RH, non-condensing
Altitude Operating: 10,000 ft (4.6 km)
Shock Operating: 50 g. Survives impact shock of 6.5 feet (2 m)
Drop, free fall, non-operating Surface to concrete, 12 drops @ 2 m
EMC Complies with national standards
Water / Rain Drip Proof
Operating: –15° C to +60° C
Non-operating: –30° C to +65° C
0° C to +45° C
Non-operating: 10 to 95% RH, non-condensing
Non-operating: 50,000 ft (15.2 km)
to concrete in standard soft case.
T able 1–3: Certifications and Compliances
REQUIREMENT SPECIFICATION
EC Declaration of Conformity Meets intent of Directive 89/366/EEC for Electromagnetic
Compatibility and Low Voltage Directive 73/23/EEC for
Product Safety . Compliance was demonstrated to the
following specifications as listed in the Official Journal of
the European Union:
EMC Directive 89/336/EEC:
EN 55011 Class A Radiated & Conducted Emissions
IEC 1000-3-2 Powerline Harmonic Emission
IEC 1000-4-2 Electrostatic Discharge Immunity
IEC 1000-4-3 RF Radiated Immunity
IEC 1000-4-4 Electrical Fast Transit Immunity
IEC 1000-4-6 RF Conducted Immunity
IEC 1000-4-11 Powerline Interruptions
Low Voltage Directive 73/23/EEC, amended by
93/69/EEC:
EN 61010-1:1993 Safety requirements for electrical
equipment for measurement control and laboratory use
EN 61010-2-031:1994 Particular requirements for
hand-held probe assemblies for electrical measurement
and test equipment
FCC Compliance Emissions comply with FCC Code of Federal Regula-
tions 47, Part 15, Subpart B, Class A Limits
TelScout TS200 Access Network Analyzer Service Manual
1–9
Introduction
T able 1–3: Certifications and Compliances (Cont.)
REQUIREMENT SPECIFICATION
Certifications EMC (Australia/New Zealand):
Complies with EMC provision of Radio Communications
Act per the following standard(s):
AN/NZS 2064.1/2 Industrial, Scientific, and Medical
Equipment: 1992
UL 3111-1 Standard for Electrical Measuring and Test
Equipment
Installation (overvoltage) category CA T II Local level, appliances, and portable equipment
T able 1–4: Safety Requirements
REQUIREMENT SPECIFICATION
CSA CAN/CSA-C22.2 No. 1010.1 EN 61010-1
UL UL 3111-1
T able 1–5: Reliability
REQUIREMENT SPECIFICATION
MTBF >40 khours (TDR only)
>24 khours (POTS & TDR)
MTTR <0.5 hours to module level
T able 1–6: Physical Characteristics
REQUIREMENT SPECIFICATION
Size (max) 10 inches (254 mm) wide
8.5 inches (216 mm) high
2.75 inches (70 mm) deep
Weight (max) 5.4 lbs. (2.4 kg) fully configured
Waveform Capacity Minimum of 20 waveforms
1–10
TelScout TS200 Access Network Analyzer Service Manual
T able 1–7: Base Product Characteristics
REQUIREMENT SPECIFICATION
Power Source:
Internal Batt
Charger Circuits Charge time: 4 hours at 25° C/77° F (full discharge to
PS Input/Output External input, charger jack, current input limit: 1.5 A, 18
AC adapter/charger Output: 5.5 mm OD, 2.1 mm ID plug, center +, sleeve –
System Load:
Base product only 24 V IN, 360 mA
Base product + POTS 24 V IN, 400 mA
POTS only 24 V IN, 400 mA
4 hours continued operation (with backlight off), 8 hours
at 50% duty cycle, meets UL safety requirements
90% capacity)
to 25 VDC
Input: 90-255 VAC, 47-63 Hz
Introduction
TelScout TS200 Access Network Analyzer Service Manual
1–11
Introduction
TS200 Characteristic Tables
T able 1–8: TDR Characteristics
REQUIREMENT SPECIFICATION SUPPLEMENTAL INFORMA TION
Pulse Width
2 ns:
75 ns:
10 ns:
340 ns:
3400 ns:
typical
typical
12 ns "20%
+30%, –15%
+15%, –25%
Measured at the end of test leads with 105 W "2 W
termination. Measured differentially with oscilloscope
Pulse Height
2 ns
10 ns:
75 ns:
340 ns:
3400 ns:
Pulse Shape
short range
long range
Distance Accuracy
Test Interface Port Parameters
Impedance
Port Over-voltage Protection
1.55 V typical
4.44 V typical
8 V typical
18 V Pk-Pk typical
28 V Pk-Pk typical
0.1% "300 ps "Vp uncertainty
"cursor resolution
105 W typical
Measured at the end of test leads with 105 W "2 W
termination. Measured differentially with oscilloscope
2 ns, 10 ns, 75 ns: 1/2 sine
340 ns, 3400 ns: 1/2 sine with line charge compensation
Verified with digital delay generator.
Range: 5 ft to >50 kft
Resolution: 0.5 ft @ Vp 1.0
Cursor resolution: 0.33% of selected range
Designed to work on standard telephone twisted pair
wire, copper, or aluminum
400 VDC + AC peak at power line frequency; no damage
with application up to 30 seconds duration
Two Pairs
TestWizard Event Marking
Wire Diameter
Range
Accuracy
1–12
22 AWG
0 – 8,000 ft
@ 1000 kft "100 ft typical
TelScout TS200 Access Network Analyzer Service Manual
Tests for crosstalk; compares two pairs
Marks multiple events. Accuracy is defined as marking a
0 dB known event while marking no non-cable-structure
events.
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