Tektronix TG 2000 User Manual
Service Manual
TG 2000
Signal Generation Platform
070-9299-01
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 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.
Printed in the U.S.A.
T ektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000
TEKTRONIX and TEK are registered trademarks of T ektronix, Inc.
Windows and Microsoft are registered trademarks of the Microsoft corporation.
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 shipment. If a 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.
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, with shipping charges prepaid.
T ektronix 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 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
REP AIR 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
Priced well below the cost of a single repair or calibration
Avoid delays for service by eliminating the need for separate purchase authorizations from your company
Eliminates unexpected service expenses
For Information and Ordering
For more information or to order Service Assurance, contact your T ektronix 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
Table of Contents
General Safety Summary vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Safety Summary ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface xi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications
Specifications 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product Description 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Characteristics T ables 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Information
Installation 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Information 2–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theory of Operation
Block Level Description 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Verification
Verification Interval 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T est Equipment Required 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preparation 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Verification Procedures 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment Procedures
Equipment Required 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preparation 5–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Self Calibration 5–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment Procedure 5–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
Preparation 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Cleaning 6–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
After Repair Adjustments 6–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repackaging Instructions 6–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal and Replacement 6–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T ools Required 6–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedures 6–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting Procedures 6–37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment Required 6–37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Troubleshooting Procedures 6–37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fault Symptom T able 6–40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting Flowcharts 6–41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TG 2000 Signal Generation Platform Service Manual
i
Contents
Options
Options 7–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replaceable Electrical Parts
Replaceable Electrical Parts 8–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagrams
Diagrams 9–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mainframe Interconnect Diagrams 9–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modules Interconnect Diagrams 9–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replaceable Mechanical Parts
Replaceable Parts 10–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering Information 10–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Replaceable Parts List 10–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index
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TG 2000 Signal Generation Platform Service Manual
List of Figures
Contents
Figure 2–1: Location of the rear-panel power connector
and configuration 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–2: Location of the CPU configuration switch 2–3. . . . . . . . . . . .
Figure 2–3: Installing the rackmount hardware 2–4. . . . . . . . . . . . . . . . .
Figure 2–4: Installing the TG 2000 Platform mainframe
into the rack 2–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–5: Instrument front panel 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–6: Browsed and selected display icons 2–9. . . . . . . . . . . . . . . . . .
Figure 2–7: Main display features 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–8: Module and test signal hierarchy 2–12. . . . . . . . . . . . . . . . . . .
Figure 2–9: Selecting the Save Signals to Disk source 2–14. . . . . . . . . . . . .
Figure 2–10: Selecting a Save Signals to Disk destination 2–15. . . . . . . . . .
Figure 2–11: Replacing test signals from disk 2–16. . . . . . . . . . . . . . . . . . .
Figure 2–12: Selecting the source signals to add from disk 2–17. . . . . . . . .
Figure 2–13: Add Signals window with source and destination
selected 2–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–14: Rear-panel connectors 2–19. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–15: RS–232 connector pin descriptions 2–20. . . . . . . . . . . . . . . . .
Figure 3–1: Simplified block diagram 3–1. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–2: Block diagram of the clocks and frame reset signals 3–4. . . .
Figure 3–3: Comparison of module delay and system delay from
a reference 3–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–4: Block diagram of module timing delay 3–6. . . . . . . . . . . . . . .
Figure 3–5: Block diagram of the AGL1 Reference timing delay 3–6. . .
Figure 4–1: Save Signals to Disk window 4–3. . . . . . . . . . . . . . . . . . . . . . .
Figure 4–2: New Directory window 4–4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–3: New directory named Test 4–4. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–4: Equipment setup for verifying clock operation 4–9. . . . . . . .
Figure 5–1: Measuring the power supply voltages on the clock board 5–4
Figure 5–2: Locating parts on the clock board 5–5. . . . . . . . . . . . . . . . . . .
Figure 6–1: Placing the module in the protective wrapping 6–5. . . . . . . .
Figure 6–2: Placing the module in the shipping carton 6–6. . . . . . . . . . . .
TG 2000 Signal Generation Platform Service Manual
iii
Contents
Figure 6–3: Placing the TG 2000 Platform mainframe in the
shipping carton 6–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–4: Top cover removal 6–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–5: Removing the front-frame assembly 6–12. . . . . . . . . . . . . . . . .
Figure 6–6: Removing the front-panel board and display
module 6–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–7: Disconnecting the LCD Display module and Front
Panel board 6–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–8: Replacing the knob encoder 6–15. . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–9: Replacing the airflow regulator 6–16. . . . . . . . . . . . . . . . . . . . .
Figure 6–10: Removing the floppy drive 6–17. . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–11: Installing the floppy drive into the chassis 6–19. . . . . . . . . . .
Figure 6–12: Removing the floppy drive assembly shield 6–20. . . . . . . . . .
Figure 6–13: Location of the Power Supply module grounding strap
(SN B010391 and below only) 6–21. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–14: Removing the Power Supply module 6–22. . . . . . . . . . . . . . .
Figure 6–15: Removing the Power Supply module attaching
screws 6–22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–16: Removing the Power Supply board 6–24. . . . . . . . . . . . . . . . .
Figure 6–17: Removing the Line Filter board 6–25. . . . . . . . . . . . . . . . . . .
Figure 6–18: Installing the fuse holder 6–27. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–19: Removing the CPU module floppy cable 6–28. . . . . . . . . . . .
Figure 6–20: Installing the CPU Memory board 6–29. . . . . . . . . . . . . . . . .
Figure 6–21: Removing the date/time clock from the CPU module 6–30. .
Figure 6–22: Installing the Clock board oscillator 6–32. . . . . . . . . . . . . . . .
Figure 6–23: Removing the Power Supply board fan 6–33. . . . . . . . . . . . .
Figure 6–24: Removing the Clock board fan 6–34. . . . . . . . . . . . . . . . . . . .
Figure 6–25: Removing the Backplane board 6–35. . . . . . . . . . . . . . . . . . .
Figure 6–26: Replacing the battery 6–36. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–27: Instrument does not boot up properly 6–41. . . . . . . . . . . . . .
Figure 6–28: Measuring the power supply voltages on the
clock board 6–42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–29: Backlight does not illuminate 6–42. . . . . . . . . . . . . . . . . . . . .
Figure 6–30: Measuring the LCD Display module high voltage 6–43. . . . .
Figure 6–31: Front panel does not function 6–43. . . . . . . . . . . . . . . . . . . . .
Figure 6–32: Locked LED does not illuminate 6–44. . . . . . . . . . . . . . . . . . .
Figure 6–33: Floppy drive does not operate properly 6–44. . . . . . . . . . . . .
Figure 6–34: Instrument is hot or the fans do not operate 6–45. . . . . . . . .
Figure 6–35: Correct time is not stored 6–46. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–36: Signal noise in mainframe slots 9 and 10 6–46. . . . . . . . . . . .
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TG 2000 Signal Generation Platform Service Manual
Figure 6–37: Instrument loses signal and operating memory during
rear-panel power off 6–47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–38: Measuring the battery charging circuit 6–48. . . . . . . . . . . . .
Figure 6–39: Front-panel knob does not function properly 6–48. . . . . . . .
Figure 9–1: Backplane board connections 9–2. . . . . . . . . . . . . . . . . . . . . .
Figure 9–2: CPU, Front Panel board, Power Supply board and
Line Filter connections 9–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 9–3: Clock connections 9–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 9–4: AGL1 module connections 9–4. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 9–5: AVG1 module connections 9–5. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 9–6: AWVG1 module connections 9–5. . . . . . . . . . . . . . . . . . . . . . .
Figure 9–7: BG1 module connections 9–6. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 9–8: GP1 module connections 9–6. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 9–9: DVG1 module connections (standard) 9–7. . . . . . . . . . . . . . .
Figure 9–10: DVG1 module connections (with Option S1 installed as
shipped) 9–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents
Figure 10–1: Top cover and chassis assembly 10–6. . . . . . . . . . . . . . . . . . . .
Figure 10–2: Front panel, disk drive and display 10–8. . . . . . . . . . . . . . . . .
Figure 10–3: Disk drive assembly 10–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 10–4: Power Supply module assembly 10–12. . . . . . . . . . . . . . . . . . .
Figure 10–5: CPU assembly 10–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 10–6: Clock assembly 10–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 10–7: Accessories 10–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TG 2000 Signal Generation Platform Service Manual
v
Contents
List of Tables
Table 1–1: AC Power source 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–2: Physical dimensions 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–3: Environmental characteristics 1–3. . . . . . . . . . . . . . . . . . . . . .
Table 1–4: System clock and frame reset 1–5. . . . . . . . . . . . . . . . . . . . . . .
Table 1–5: Certifications and compliances 1–6. . . . . . . . . . . . . . . . . . . . . .
Table 2–1: AC power fuse requirements 2–2. . . . . . . . . . . . . . . . . . . . . . .
Table 2–2: Keypad definitions 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 4–1: Test equipment required for verification 4–1. . . . . . . . . . . . . .
Table 5–1: Equipment List for adjustments 5–1. . . . . . . . . . . . . . . . . . . .
Table 6–1: Tools required for module removal 6–9. . . . . . . . . . . . . . . . . .
Table 6–2: Removal and replacement procedure list 6–10. . . . . . . . . . . . .
Table 6–3: Equipment required for troubleshooting 6–37. . . . . . . . . . . . .
Table 6–4: CPU confidence test codes 6–40. . . . . . . . . . . . . . . . . . . . . . . . .
Table 6–5: Fault symptom table 6–40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 7–1: Power cord identification 7–1. . . . . . . . . . . . . . . . . . . . . . . . . .
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TG 2000 Signal Generation Platform 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.
Only qualified personnel should perform service procedures.
To avoid potential hazards, use this product only as specified.
Injury Precautions
Product Damage
Precautions
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.
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/Damp Conditions. 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.
Use Proper V oltage Setting. Before applying power, ensure that the line selector is
in the proper position for the power source being used.
Provide Proper Ventilation. To prevent product overheating, provide proper
ventilation.
Do Not Operate With Suspected Failures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.
TG 2000 Signal Generation Platform Service Manual
vii
General Safety Summary
Symbols and Terms
T erms 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.
T erms 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:
Certifications and
Compliances
DANGER
High Voltage
Protective Ground
(Earth) T erminal
ATTENTION
Refer to Manual
Double
Insulated
Refer to the specifications section for a listing of certifications and compliances
that apply to this product.
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TG 2000 Signal Generation Platform Service Manual
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 mains power by means
of the power cord or the rear-panel power switch.
Use Care When Servicing With Power On. Dangerous voltages or currents may
exist in this product. Disconnect power cord and test leads before removing
protective panels, soldering, or replacing components.
To avoid electric shock, do not touch exposed connections.
TG 2000 Signal Generation Platform Service Manual
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Service Safety Summary
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TG 2000 Signal Generation Platform Service Manual
Preface
About This Manual
You have purchased this optional service manual for the TG 2000 Platform
mainframe. You can also purchase service manuals for the modules. Each
module manual begins with a tab so that you can locate it after you add it to the
mainframe manual binder.
The user manuals are set up the same way as the service manuals. You should
receive a user manual with each mainframe or module ordered.
This manual contains information for servicing the TG 2000 Signal Generation
Platform to a module level. The information is designed only for qualified
service technicians, with moderate experience in analog circuits, digital circuits,
and television technology. This manual is composed of the following sections:
Specifications provides a basic product description followed by instrument
specifications tables.
Operating Information is designed to provide just enough operating
information for a service technician to be able to service the product. For
more details, refer to the user manual.
Theory of Operation is an overview of the main components of the platform,
describing general interactions with the modules.
Performance Verification contains procedures necessary to verify that the
mainframe components (Clock, Power Supply, and CPU) are meeting the
requirements listed in the Specifications.
Adjustments contains procedures to adjust the +5V power supply and the
oscillator.
Maintenance contains installation, removal and replacement, and trouble-
shooting instructions.
Options lists all available options for the mainframe.
Replaceable Electrical Parts for the module level are included in the
Replaceable Mechanical Parts list.
Diagrams contains interconnect diagrams showing the connections between
the mainframe and the modules.
Replaceable Mechanical Parts lists the part numbers for replacement parts
that you can order. Exploded view illustrations help you to identify the parts.
TG 2000 Signal Generation Platform Service Manual
xi
Preface
Contacting Tektronix
Product
Support
Service
Support
For other
information
To write us Tektronix, Inc.
For application-oriented questions about a Tektronix measurement product, call toll free in North America:
1-800-TEK-WIDE (1-800-835-9433 ext. 2400)
6:00 a.m. – 5:00 p.m. Pacific time
Or contact us by e-mail:
tm_app_supp@tek.com
For product support outside of North America, contact your
local Tektronix distributor or sales office.
Contact your local Tektronix distributor or sales office. Or visit
our web site for a listing of worldwide service locations.
http://www.tek.com
In North America:
1-800-TEK-WIDE (1-800-835-9433)
An operator will direct your call.
P.O. Box 1000
Wilsonville, OR 97070-1000
xii
TG 2000 Signal Generation Platform Service Manual
Specifications
Product Description
This section contains the Product Description, which describes the product and
accessories, and the Characteristics Tables, which list the product specifications.
The TG 2000 Signal Generation Platform provides multiformat, precision
television test signals for both analog and digital video standards. The physical
configuration is a mainframe with up to nine plug-in modules. Modules either
generate signals or provide special functions, such as genlock capability.
You can use included software (SDP2000 Signal Development Program) to
generate custom test signals, which you can store on a disk or transfer directly
into the memory of a generator module.
The TG 2000 Signal Generation Platform addresses the needs of research and
development, engineering, manufacturing test, and most operational environments.
These are some of the key features of the platform:
Modular architecture with up to nine generators or special function modules
Support of analog and digital environments for most component and
composite video signal formats
Reference generator performance level
Modules genlocked to external reference with the optional AGL1 Genlock
module
Included Microsoft Windows-based SDP2000 software to create new signals
Remote control, using RS-232 interface (or optional GPIB interface) and
SCPI command set
Full support of VM700A video measurement routines
Variable transmission parameters, such as jitter amplitude and frequency, for
serial digital formats using the DVG1 module with option S1
Variable signal parameters for some analog and digital format modules
Circle and text overlays on test signals for some modules
Simultaneous 525/60 and 625/50 signal generation
TG 2000 Signal Generation Platform Service Manual
1–1
Specifications
Accessories
Moving signals for compression system testing
Programmable system clocks to support standard and custom formats
Flash EPROM allows easy upgrades to system software
This section describes the key accessories for the TG 2000 Signal Generation
Platform. For a complete list of accessories and their Tektronix part numbers,
refer to the Replaceable Mechanical Parts list at the back of this manual.
BG1 Black Burst
Generator Module
SDP2000 Signal
Development Program
GPIB Card for SDP2000
Communications
The BG1 Generator module is supplied as a standard accessory. There are six
black burst signals to select from; the module provides the selected black burst
signal on the three rear-panel connectors. Additionally, the module can provide
one of the system clocks from its rear-panel clock output.
More than one BG1 Generator module can be added to the mainframe to provide
enough flexibility to meet virtually any system timing requirement. The BG1
Generator module can be removed without affecting system operation.
The SDP2000 Signal Development Program is supplied as a standard accessory.
This program runs under Microsoft
parallel port are compatible with Windows NT. All features are compatible with
Windows 95.
You can use the SDP2000 program to create custom signals for the various
modules. You can use the remote interface or a disk to download the signals to
the module memory. Refer to the SDP2000 Signal Development Program User
Manual for information about using this program.
The Tektronix S3FG210 is a GPIB–PCII/IIA interface card. It provides the type
of interface needed to operate the TG 2000 Signal Generation Platform when
performing GPIB communications with the SDP2000/TGCOMM software.
Windows 3.1 or higher. All features except the
1–2
Accessory Kit
Extender Board
The accessory kit includes a Torx T-10 bit (needed to secure the modules), two
fuses, and a blank panel. The fuses support the two line voltage settings; see
Electrical Installation on page 2–1 for instructions. The blank panel fills the gap
when a module is removed.
The extender board is an optional accessory that you can order to use when
troubleshooting the TG 2000 Signal Generation Platform. The part number can
be found at the end of the Replaceable Mechanical Parts list.
TG 2000 Signal Generation Platform Service Manual
Characteristics Tables
Specifications
This section lists the electrical and environmental specifications for the TG 2000
Platform mainframe. For the specifications of a specific module, refer to the user
or service manual for that module.
T able 1–1: AC Power source
Characteristic Performance requirement Reference information
AC Source Voltage
115 V operation 87 V
230 V operation 174 V
RMS
RMS
to 132 V
to 250 V
RMS
RMS
Power Consumption 220 W line power typical
Fuse Rating
115V Operation Slow blow, 6 AT
230 V Operation Slow blow, 3 AT
Nominal Switching Frequency 100 kHz
T able 1–2: Physical dimensions
Characteristic Description
Dimensions Height: 5.25 in (13.34 cm)
Width: 19.0 in (48.26 cm); standard rack width
Depth: 23 in (58.42 cm)
1
Weight
Net Weight: 38 lbs (17.27 kg) typical
Shipping Weight: 52 lbs (23.67 kg) typical
T able 1–3: Environmental characteristics
Characteristic Performance requirement Reference information
T emperature
Operating 32_ F to 104_ F (0_ C to 40_ C)
Nonoperating –4 to +140_ F (–20 to +60_ C)
1
Weight of the TG 2000 will vary depending on the number and type of generator or other modules installed.
2
Battery storage life is specified at 25_ C. At 60_ C, battery discharge accelerates, resulting in self discharge in less than
2
30 days.
TG 2000 Signal Generation Platform Service Manual
1–3
Specifications
T able 1–3: Environmental characteristics (cont.)
Characteristic Reference informationPerformance requirement
Altitude
Operating To 15,000 feet (4572 meters)
Nonoperating To 40,000 feet (12,203 meters)
Humidity
Operating ≤ 104_ F (≤ 40_ C ), up to 95% relative
humidity
Nonoperating Up to 95% relative humidity
Heat Dissipation 220 W atts maximum for mainframe with
modules in all slots
Clearance for Cooling For rack installation, allow standard side
cooling and 2 in (5 cm) rear clearance for
cables
For desktop use, allow 2 in (5 cm) side and
rear clearance
Bench Handling 1 drop of 2 inches of each edge for all
significant surfaces
Vibration
Operating 5-100 HZ g2/Hz APSD: 0.00015
100-200 Hz Slope dB/Octave: 0
200-350 HZ g2/Hz APSD: 0.00015
350-500 Hz Slope dB/Octave: –3
500 HZ g2/Hz APSD: 0.000105
GRMS overall: 0.27[0.24]
Time/Axis minutes: 10
Nonoperating 5-100 HZ g2/Hz APSD: 0.0175
100-200 Hz Slope dB/Octave: –3
200-350 HZ g2/Hz APSD: 0.00875
350-500 Hz Slope dB/Octave: –3
500 HZ g2/Hz APSD: 0.006132
GRMS overall: 2.22
Time/Axis minutes: 10
Mechanical Shock, Nonoperating 30 g 1/2 sine, 11 ms duration 3 shocks
per surface (18 total)
1–4
TG 2000 Signal Generation Platform Service Manual
Specifications
T able 1–3: Environmental characteristics (cont.)
Characteristic Reference informationPerformance requirement
Transportation Package qualified per Tektronix standard
062–2858–00 Rev. B “Environmental T est
Methods–Dynamics” and MBD Quality
Document ENVL–0060 “Transportation
Package Qualification Test Plan”.
Equipment Type Test and Measuring
Equipment Class Class 5
T able 1–4: System clock and frame reset
Characteristic Performance requirement Reference information
Clock Frequency 27 MHz
DDS Ch 1: 10 MHz to 100 MHz
DDS Ch 2: 10 MHz to 100 MHz
Step Size: 0.1 Hz
Stability ±1 ppm/year, operating at standard oven
temperature
Clock Jitter ≤30 ps RMS
Non-harmonic Clock Spurs –45 dBc or better
Tune Range ± 10 ppm
Frame Reset Two reset channels, 1.7 Hz to 1 kHz
TG 2000 Signal Generation Platform Service Manual
1–5
Specifications
eclaration o
ormit
T able 1–5: Certifications and compliances
Category Standard
EC D
Safety
U.S. Nationally Recognized Laboratory
Canadian Certification CAN/CSA C22.2 No. 1010.1 Safety Requirements for Electrical Equipment for
European Union Low Voltage Directive 73/23/EEC, Amended by 93/68/EEC
Additional Compliance UL3111-1 Standard for Electrical Measuring and Test Equipment
Listing
f Conf
y Compliance was demonstrated to the following specifications as listed in the Official
Journal of the European Communities:
EN 50081-1 Emissions:
EN 55022 Class B Radiated and Conducted Emissions
EN 60555-2 AC Power Line Harmonic Emissions
EN 50082-1 Immunity:
IEC 801-2 Electrostatic Discharge Immunity
IEC 801-3 RF Electromagnetic Field Immunity
IEC 801-4 Electrical Fast T ransient/Burst Immunity
IEC 801-5 Power Line Surge Immunity
Low Voltage Directive 73/23/EEC, Amended by 93/68/EEC
EN61010-1 Safety Requirements s for Electrical Equipment for Measurement,
Control, and Laboratory Use
ANSI/ISA S82.01 Safety Standard for Electrical and Electronics Test, Measuring,
Controlling, and Related Equipment, 1994
Measurement, Control, and Laboratory Use
EN61010-1 Safety Requirements for Electrical Equipment for Measurement,
Control, and Laboratory Use
Safety Certification Compliance
T emperature, operating 41_ F to 104_ F (+5 to +40_ C)
Altitude (max operating) 6562 feet (2000 meters)
Equipment Type Test and Measuring
Safety Class Class I (as defined in IEC 1010–1, Annex H) – grounded product
Overvoltage Category Installation Category II (as defined in IEC 1010–1, Annex J).
Pollution Degree Pollution Degree 2 (as defined in IEC 1010–1). Rated for indoor use only.
1–6
IEC1010-1 Safety Requirements for Electrical for Measurement, Control, and
Laboratory Use
TG 2000 Signal Generation Platform Service Manual
Operating Information
This section contains the following information:
Installation instructions
Operating information
All modules that you order are shipped configured and installed in the TG 2000
Platform mainframe. Refer to Options on page 7–1 for information about any
installed options. To install or remove a module, refer to the user or service
manual for that specific module.
Installation
Before you install the TG 2000 Platform mainframe, observe these environmental considerations:
Provide the appropriate operating environment. Refer to Specifications for
temperature, humidity, altitude, and other environmental requirements.
Leave enough space for instrument cooling by ensuring standard side
clearance for rackmount installation or 2 inches (5.1 cm) of side clearance
for countertop use.
Electrical Installation
Ensure rear clearance of approximately 2 inches (5.1 cm) so that cables are
not damaged by sharp bends.
To install the TG 2000 Platform mainframe, perform these steps:
WARNING. To avoid electrical shock, be sure that the power cord is disconnected
before checking the fuse or changing the setting of the Line Selector switch.
To avoid damaging the TG 2000 Platform mainframe, always use the correct
fuse for the local line voltage. Refer to Table 2–1 on page 2–2 or the fuse chart
located on the rear panel for the proper fuse rating for each line voltage setting.
1. Using the information in Figure 2–1, set the rear-panel Line Selector switch
to the correct position for your local AC power system.
2. Check that the correct line-voltage fuse for your local AC power system is
installed. Refer to Table 2–1 for the fuse ratings.
TG 2000 Signal Generation Platform Service Manual
2–1
Operating Information
Line
selector
Fuse
Power
switch
AC line
connecter
Figure 2–1: Location of the rear-panel power connector and configuration
T able 2–1: AC power fuse requirements
Line V oltage Setting Fuse Rating
115 V 250 V, 6 AT
230 V 250 V, 3 AT
3. Check that the CPU configuration switch is in the “0” position. See
Figure 2–2.
4. Check that you are using the correct power cord for the local AC power
system. Refer to Options on page 7–1 for a list of power cords.
5. Connect the power cord from the rear-panel power connector to the AC
power system.
2–2
TG 2000 Signal Generation Platform Service Manual
Top view of
instrument
Operating Information
Rackmount Installation
Figure 2–2: Location of the CPU configuration switch (switch set to 0)
To rackmount the TG 2000 Platform mainframe, perform the following steps:
1. Connect the rackmount hardware to the rack, as shown in Figure 2–3.
2. Carefully begin inserting the rack pieces attached to the TG 2000 Platform
mainframe into the pieces attached to the rack. See Figure 2–4.
WARNING. To prevent the TG 2000 Platform mainframe from falling and causing
injury to yourself and damage to the instrument, be sure that the stop latches
snap into position in the slide-out track on both sides of the instrument. See
Figure 2–4.
3. Support the instrument until the stop latches click into place on both sides.
4. Continue to slide the TG 2000 Platform mainframe completely into the rack.
TG 2000 Signal Generation Platform Service Manual
2–3
Operating Information
Chassis section
Intermediate
section
Automatic latches
Rear mounting
bracket
Automatic latches
Flat bar nut
Stationary section
Front rack
10–32 Phs screw
Stop latch
hole
Rear rack
10–32 Phs screws
Flat bar nut
Flat bar nut
(Use if front rail
is not tapped)
Figure 2–3: Installing the rackmount hardware
2–4
TG 2000 Signal Generation Platform Service Manual
Operating Information
Side-out track
Stop latch
Figure 2–4: Installing the TG 2000 Platform mainframe into the rack
Rackmount Removal. Perform these steps to remove the TG 2000 Platform
mainframe from the rack:
1. Disconnect the power cord and any attached cables from the rear of the
instrument.
2. Slide the TG 2000 Platform mainframe out until it stops at the catches.
WARNING. To prevent the TG 2000 Platform mainframe from falling and causing
injury to yourself and damage to the instrument, be sure that the stop latches
snap into position in the slide-out track on both sides of the instrument.
3. Support the TG 2000 Platform mainframe while you depress the stop latch
buttons on each side of the instrument. See Figure 2–4.
4. Provide support while you slide the TG 2000 Platform mainframe complete-
ly out of the rack.
TG 2000 Signal Generation Platform Service Manual
2–5
Operating Information
Operating Information
This section contains instructions and procedures that will acquaint you with the
basics of operating the TG 2000 Platform mainframe so that you can perform
service on the instrument. Refer to the TG 2000 Signal Generation Platform
User Manual for detailed operating information.
This section includes instructions on the following topics:
Front-panel controls and indicators (page 2–6)
Using the touch screen (page 2–10)
Selecting test signals (page 2–12)
Using the disk drive (page 2–13)
Self Calibration (page 2–18)
Rear-panel connections (page 2–19)
Front-Panel Controls and
Indicators
Power-on procedure (page 2–21)
The primary method to control the TG 2000 Signal Generation Platform is to use
a combination of front-panel button and LCD display touch screen selections to
activate the functions within the instrument.
The secondary method to control the instrument is through the remote ports.
Refer to the user manual for detailed remote instructions.
The front-panel controls (see Figure 2–5) are divided into the following
functional sections:
System function
Keypad
Navigation
Miscellaneous function
After you select an instrument function, the selection may require a few seconds
to implement. A small hourglass icon is displayed in most cases while the
instrument implements your selection. Wait until the hourglass icon disappears
before you make another selection.
2–6
System Function. In most cases, when you push one of the System Function
buttons, a window opens on the LCD display providing touch-screen selections
related to the function of the button. For example, the Modules button displays a
window with selections that represent the installed generator modules.
TG 2000 Signal Generation Platform Service Manual
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