Tektronix TSG 601 User Manual

User Manual

TSG 601 Serial Digital Generator
070-8910-03
Copyright Tektronix, Inc., 1994. All rights reserved. Printed in the U.S.A. Tektronix products are covered by U.S. and foreign patents, issued
and pending. Information in this publication supersedes that in all previously published material. Specification and price change privi­leges reserved.
For further information, contact: Tektronix, Inc., P.O. Box 1000, Wilsonville OR 97070–1000, U.S.A. Phone: (503) 627–7111; TLX: 192825; TWX: (910) 467–8708; Cable: TEKWSGT.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

Warranty

Tektronix warrants that this product will be free from defects in ma­terials and workmanship for a period of one (1) year from the date of shipment. If any such 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 with r espect to this product in lieu of any other warranties, expressed or implied. Tektr onix and its vendors disclaim any implied warranties of merchantabil­ity or fitness for a particular purpose. Tektronix’ responsibility to repair or replace defective pr oducts 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.
EC Declaration of Conformity
We
Tektronix Holland N.V. Marktweg 73A 8444 AB Heerenveen The Netherlands
declare under sole responsibility that the
TSG 601 Handheld Serial Component Generator
meets the intent of Directive 89/336/EEC for Electromagnetic Compatibility. Compliance was demonstrated to the following specifications as listed in the Official Journal of the European Communities:
EN 55011 Class A Radiated and Conducted Emissions EN 50081-1 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 Transient/Burst Immunity
High-quality shielded cables must be used to ensure compliance to the above listed standards.

Table of Contents

Getting Started 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Basics 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Powering the Instrument 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keypad and Display Conventions 5. . . . . . . . . . . . . . . . . . . . . . .
Using your TSG 601 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outputting Serial Video Test Signals 6. . . . . . . . . . . . . . . . . .
Adjusting the Output Amplitude 8. . . . . . . . . . . . . . . . . . . . . .
Controlling the Video Component (Y, Cr, Cb) Channels 8. . .
Specifying 8- or 10-bit Data Words 9. . . . . . . . . . . . . . . . . . .
Specifying CRC Content of the Signal 9. . . . . . . . . . . . . . . . .
Inserting ID Messages 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Editing ID Messages 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Positioning ID Messages 11. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting up an ID Cycle 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inserting Embedded Audio 12. . . . . . . . . . . . . . . . . . . . . . . . . .
Specifying Inserted Audio Channels in the Group 13. . . . . . . .
Specifying Audio Channel Frequencies 13. . . . . . . . . . . . . . . .
Changing Audio Channel Amplitudes 14. . . . . . . . . . . . . . . . .
Audio Channel ID 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable Simulation 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Detecting Incorrect Termination 15. . . . . . . . . . . . . . . . . . . . . .
Saving (Storing) Presets and IDs 16. . . . . . . . . . . . . . . . . . . . .
Recalling Presets and IDs 16. . . . . . . . . . . . . . . . . . . . . . . . . . .
Details 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CRCs 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ID Messages 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Embedded Audio 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The SDI Checkfield Signals 20. . . . . . . . . . . . . . . . . . . . . . . . .
Appendix A: Characteristics 25. . . . . . . . . . . . . . . . . . . . . . . . .
Safety Standard Compliance 25. . . . . . . . . . . . . . . . . . . . . . . . . . .
Specification Tables 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Waveform Diagrams 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix B: Replaceable Parts 53. . . . . . . . . . . . . . . . . . . . . . .
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Contents
Appendix C: User Service 55. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Hints 55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The BATTERY LOW Message 55. . . . . . . . . . . . . . . . . . . . . . .
Low-battery Shut Down 55. . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Diagnostic Menu 56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preventive Maintenance 58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
List of Figures
Figure 1: 75% Color Bars, Y 37. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2: 75% Color Bars, B–Y 38. . . . . . . . . . . . . . . . . . . . . . .
Figure 3: 75% Color Bars, R–Y 38. . . . . . . . . . . . . . . . . . . . . . .
Figure 4: 100% Color Bars, Y 39. . . . . . . . . . . . . . . . . . . . . . . .
Figure 5: 100% Color Bars, B–Y 39. . . . . . . . . . . . . . . . . . . . . .
Figure 6: 100% Color Bars, R–Y 40. . . . . . . . . . . . . . . . . . . . . .
Figure 7: Pluge 1, Y only 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 8: 625 Line Pluge 2, Y channel only 41. . . . . . . . . . . . . .
Figure 9: 525 Line Pluge 2, Y only 41. . . . . . . . . . . . . . . . . . . . .
Figure 10: 5-Step Staircase and Modulated 5-Step, Y 42. . . . .
Figure 11: 5-Step Staircase, B–Y and R–Y 42. . . . . . . . . . . . . .
Figure 12: 625 Line Modulated 5-Step, B–Y and R–Y 43. . . . .
Figure 13: 525 Line Modulated 5-Step, B–Y and R–Y 43. . . . .
Figure 14: Limit Ramp, Y 44. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 15: Limit Ramp, B–Y and R–Y 44. . . . . . . . . . . . . . . . .
Figure 16: Shallow Ramp, Y 45. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 17: Shallow Ramp, B–Y and R–Y 45. . . . . . . . . . . . . . .
Figure 18: 625 Line Mod Pulse and Bar, Y 46. . . . . . . . . . . . . .
Figure 19: 625 Line Mod Pulse and Bar, B–Y 46. . . . . . . . . . . .
Figure 20: 625 Line Mod Pulse and Bar, R–Y 46. . . . . . . . . . .
Figure 21: 525 Line Mod Pulse and Bar, Y 47. . . . . . . . . . . . . .
Figure 22: 525 Line Mod Pulse and Bar, B–Y 47. . . . . . . . . . . .
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TSG 601 User Manual
Figure 23: 525 Line Mod Pulse and Bar, R–Y 47. . . . . . . . . . .
Figure 24: 60% Line Sweep with Markers, Y 48. . . . . . . . . . . .
Figure 25: 60% Line Sweep with Markers, B–Y and R–Y 48.
Figure 26: 500 kHz Bowtie, Y 49. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 27: 500 kHz Bowtie, B–Y and R–Y 49. . . . . . . . . . . . . .
Figure 28: Bowtie Markers, Y channel only 49. . . . . . . . . . . . .
Figure 29: Convergence, Vertical Lines; Y channel only 50. . .
Figure 30: Convergence, Horizontal Lines; Y only 50. . . . . . .
Figure 31: Active Picture Markers, vertical limits 51. . . . . . . .
Figure 32: Active Picture Markers, horizontal limits 51. . . . . .
Figure 33: The Significance of the Active Picture Markers 52.
Contents
List of Tables
Table 1: Test Signal Characteristics 26. . . . . . . . . . . . . . . . . . .
Table 2: Encoding Parameters 28. . . . . . . . . . . . . . . . . . . . . . . .
Table 3: Serial Digital Video Output 29. . . . . . . . . . . . . . . . . . .
Table 4: Cable Simulator 30. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 5: Character Identification 31. . . . . . . . . . . . . . . . . . . . .
Table 6: Signal Characteristics for Embedded Serial Audio 31
Table 7: Audio Channel Status Bits 32. . . . . . . . . . . . . . . . . . . .
Table 8: 525/59.94 Embedded Serial Audio Sample Dist. 33. .
Table 9: 625/50 Embedded Serial Audio Sample Dist. 34. . . . .
Table 10: Physical Characteristics 36. . . . . . . . . . . . . . . . . . . .
Table 11: Environmental Characteristics 36. . . . . . . . . . . . . . .
Table 12: 75% and 100% Color Bars Timing 37. . . . . . . . . . . .
Table 13: Pluge Timing 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 14: 5-Step Staircase and Modulated 5-Step Timing 42. .
Table 15: Active Picture Markers Timing 51. . . . . . . . . . . . . . .
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TSG 601 User Manual

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.
To Avoid Fire or Personal Injury
Observe All Terminal Ratings. To avoid fire or shock hazard, observe
all ratings and markings on the product. Consult the product manual for further ratings information before making connections to the product.
The common terminal is at ground potential. Do not connect the common terminal to elevated voltages.
Replace Batteries Properly. Replace batteries only with the proper type and rating specified.
Recharge Batteries Properly. Recharge batteries for the recommended charge cycle only.
Use Proper AC Adapter . Use only the AC adapter specified for this product.
Do Not Operate Without Covers. Do not operate this product with covers or panels removed.
Use Proper Fuse. Use only the fuse type and rating specified for this product.
Do Not Operate With Suspected Failures. If you suspect there is damage to this product, have it inspected by qualified service personnel.
Do Not Operate in Wet/Damp Conditions. Do Not Operate in an Explosive Atmosphere.
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General Safety Summary
Safety Terms and Symbols
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. These symbols may appear on the product:
CAUTION
Refer to Manual
Double
Insulated
Battery Recycling
This product contains a Nickel Cadmium (NiCd) battery, which must be recycled or disposed of properly. For the location of a local battery recycler in the U.S. or Canada, please contact:
RBRC (800) BATTERY Rechargeable Battery Recycling Corp. (800) 227-7379 P.O. Box 141870 www.rbrc.com Gainesville, Florida 32614
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TSG 601 User Manual

Getting Started

Please note the following statements before using your TSG 601.
CAUTION. Attempting to operate the TSG 601 with an improper AC adapter can result in damage to the instrument. To avoid damage, USE ONLY AN APPROPRIATE DC POWER SOURCE: Voltage must be 9 to 15 VDC; the connector must have the NEGATIVE contact in the center; and open-circuit voltage of the power source must not exceed 18 VDC.
For best results, use the AC adapter that is supplied with the instru­ment. If the supplied adapter is incorrect for the local AC power sup­ply, contact your nearest Tektronix representative.
WARNING. Install or replace batteries only with the instrument switched OFF and the AC adapter disconnected.
Replace the batteries only with standard AA batteries (1.2–1.5 V, nominal), or with the optional rechargeable battery pack.
If you use NiCad AA batteries or the optional battery pack, be sure to set the battery type to “rechargeable” through the diagnostic menu (see page 56). Failure to do so can result in damage to the batteries.
NOTE. Do not disconnect the AC adapter when the TSG 601 is switched on. Some user settings may be lost, perhaps causing unex­pected results the next time the instrument is switched on.
If you have any questions regarding the operation of this instrument, please contact your nearest Tektronix representative or field office. In the United States and Canada, you may also call the Tektronix information number, 1-800-TEK-WIDE (1-800-835-9433), between 8:00 am and 5:00 pm Pacific time.
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TSG 601 User Manual

Operating Basics

Thank you for choosing the Tektronix TSG 601—and thank you for reading this manual. To begin using the instrument as quickly as pos­sible, see “Using your TSG 601,” beginning on page 5. For even more information on selected topics, turn to “Details,” on page 17. First, though, read the next section for tips on supplying power to the instrument.

Powering the Instrument

The TSG 601 is DC powered. You may power it with the standard AC adapter, the optional 9.6 V NiCad battery pack, eight standard AA batteries, or a “BP” type battery pack with the correct voltage and polarity. The external DC power connector is on the left side of the instrument (see the illustration above). Open the battery compart-
TSG 601 User Manual
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Operating Basics
ment by sliding the compartment door in the direction of the in­scribed arrow until the door tabs line up with the slots in the case, then remove the door. When selecting a power source for your TSG 601, please remember:
H Attempting to use an improper AC adapter can cause permanent
damage to the instrument. USE AN APPROPRIATE DC POWER SOURCE ONLY: Voltage must be between 9 and 15 VDC; the center contact of the connector must be NEGATIVE polarity; and open-circuit voltage must not exceed 18 VDC. For best results, use the adapter supplied with the instrument.
H There is no need to remove the optional NiCad battery pack for
recharging. The TSG 601 will “trickle charge” the battery pack whenever the standard AC adapter is used. It can take up to 16 hours to fully charge the battery pack. Note that charging will
occur only if the adapter supplies at least 12V; make sure that the adapter you use is appropriate for the local AC supply.
H AA batteries are not included with the instrument; buy them
locally. Rechargeable AA batteries may be used, but they are NOT recharged automatically. To recharge AA batteries, remove them from the instrument and use an appropriate battery charger. For safety, read and follow the battery charger instructions. Do NOT attempt to recharge standard alkaline batteries.
H After a minute with no key press, the display back light will be
dimmed to conserve battery charge.
H To guard against battery discharge if you forget to turn the
TSG 601 off, enable Auto Power Down through the Diagnostic menu (see page 56).
H The TSG 601 can sense low battery voltage. It will warn you
when the charge is sufficient for approximately ten more minutes of operation. The instrument will shut itself down when the bat­tery voltage becomes too low for reliable operation. See the Bat­tery hints in Appendix C, beginning on page 55 of this manual.
The ON key toggles instrument power On and Off.
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TSG 601 User Manual

Keypad and Display Conventions

Please see the Instruction card (p/n 070-8909-00) supplied with your TSG 601 for a “tour” of the keypad and an explanation of the display symbols. For your convenience, the following panels are excerpted from the card.
Operating Basics

Using your TSG 601

Here’s a list of what you can do with your TSG 601. Simple instruc­tions for each operation begin on the indicated page.
H Output serial video test signals (page 6).
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Operating Basics
G Specify the peak–to–peak amplitude of the serial output, from
600 to 1000 mV (page 8).
G Choose the video components (Y, C
, Cb) to be included in the
r
serial output (page 8).
G Specify 8- or 10-bit video sample words (page 9).
H Embed CRC information (used for “Error Detection and
Handling,” or EDH) in the output to detect or simulate errors originating in the serial data path (page 9).
H Add an ID message to the video signal, and place it where you
want in the picture (pages 10, 11).
H Store up to eight ID messages for later use (pages 10, 16). H Create a sequence of (up to four) stored ID messages that will
cycle continuously in the output (page 11).
H Embed Audio information in the serial video data path (page 12) H Simulate the effect on your system of 50 m (164 ft.) of coaxial
cable (page 15).
H Detect improper termination of the serial video signal path
(page 15).
H Save all the current instrument settings as a “Preset” for later
recall (page 16).
Outputting Serial Video Test Signals
1. Connect the Serial Video Output of the instrument to your
system. Use 75 cable and be sure that the signal path is terminated properly .
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TSG 601 User Manual
Operating Basics
2. Power the TSG (page 3) and switch it on. By default, the instru­ment will begin with most settings that were in effect when it was switched off. Two exceptions: all video component channels will be ON (see page 8); and the output amplitude will be 800 mV.
3. Select the appropriate serial video standard (625/50 or 525/60) through the Diagnostic menu (pages 56, 58).
4. Return to normal operation by pressing the Test Signals key.
5. Select the desired test signal one of three ways: G Press the Test Signals key repeatedly until the name of the
signal you want appears on the display. The signal will be output as soon as the name is visible. Or ...
G Use the
Y and B keys to scroll through the list of signals until
you get to the desired signal. Or...
G Press the appropriate letter key (A through P) to “Direct-Se-
lect” the signal. The available signals and their corresponding keys are listed below.
Test Signal
75% Color Bars 100% Color Bars Pluge 1 (BBC 1) Pluge 2 (BBC 2)
Direct-Select Key
A B C
D 5-Step Staircase Limit Ramp Shallow Ramp
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F
G
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Operating Basics
Test Signal
Modulated 5-Step Modulated Pulse and Bar 60% Line Sweep with Markers Bowtie Convergence Equalizer SDI Checkfield PLL SDI Checkfield Matrix SDI Checkfield Active Picture Markers
Direct-Select Key
H
I
J
K
L M N O P
Adjusting the Output Amplitude
1. Press the key marked “Output Ampl.”
2. Select the desired output level with the arrow keys. The
Y / B
keys change the level to the next higher or lower 100 mV increment;
A / " keys change it in 20 mV increments. Holding
an arrow key down will continually increase or decrease the level until it reaches its minimum or maximum.
3. Press any rectangular key to exit the Output Amplitude Adjust function.
Controlling the Video Component (Y, C
1. Enter the Output menu (press
ENTER to reach “Channel Output Selection.” The display will
, Cb) Channels
r
Shift, then Output Ampl.) and press
look something like this:
2. Use the A and " keys to position the flashing underline cursor to the status (ON or OFF) of the channel you wish to change.
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TSG 601 User Manual
Operating Basics
3. Toggle the status with the change instantly—you don’t have to press
Y or B key. The channel status will
ENTER.
NOTE. All three component channels default to ON whenever the TSG 601 is switched off and back on, regardless of prior “Channel Output” settings.
Specifying 8- or 10-bit Data Words
1. If necessary, enter the Output menu (press
Shift, then Output Ampl.).
2. Scroll down to the “Video Data Word Length” item with the down arrow key and press
ENTER to reach the word length
selection display .
3. Use the
A or " key to toggle between 8 and 10 bits; press ENTER
to confirm the selection.
4. Press any rectangular key to exit the Output menu.
Specifying CRC Content of the Signal
1. Enter the CRC menu (press
Shift, then CRC On/Off). The display
will resemble the following illustration.
2. Use the A / " keys to select FFCRC (Full Field CRC) or APCRC (Active Picture CRC). Notice that the up/down symbol on the second display line will move to indicate the chosen type of CRC.
3. Use the
Y / B keys to select the type of CRC to be encoded into
the output. The choices for the two types of CRCs are:
G FFCRC — NORM or ERR (Error) G APCRC — NORM, ZERO, or ERR (Error)
See “CRCs” on page 17 for an explanation of these options.
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