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Tektronix TSG 601 User Manual
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Tektronix TSG 601 User Manual

Tektronix TSG 601 User Manual

Serial digital generator
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User Manual
TSG 601
Serial Digital Generator
070-8910-03
www.valuetronics.com

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Summary of Contents for Tektronix TSG 601

  • Page 1 User Manual TSG 601 Serial Digital Generator 070-8910-03 www.valuetronics.com...
  • Page 2 Copyright E 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 privi- leges reserved.

  • Page 3: Warranty

    product.
  • Page 4 www.valuetronics.com...
  • Page 5 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...
  • Page 6 www.valuetronics.com...

  • Page 7: Table Of Contents

    ..... . . Using your TSG 601 ....... . .
  • Page 8 ....Figure 22: 525 Line Mod Pulse and Bar, B–Y ... . TSG 601 User Manual www.valuetronics.com...
  • Page 9 ......Table 14: 5-Step Staircase and Modulated 5-Step Timing Table 15: Active Picture Markers Timing ....TSG 601 User Manual www.valuetronics.com...
  • Page 10 Contents TSG 601 User Manual www.valuetronics.com...

  • Page 11: General Safety Summary

    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. TSG 601 User Manual www.valuetronics.com...
  • Page 12 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 TSG 601 User Manual www.valuetronics.com...

  • Page 13: Getting Started

    “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 unex- pected results the next time the instrument is switched on.
  • Page 14 TSG 601 User Manual www.valuetronics.com...

  • Page 15: Operating Basics

    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.
  • Page 16 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 bat- tery voltage becomes too low for reliable operation.

  • Page 17: Keypad And Display Conventions

    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.

  • Page 18: Outputting Serial Video Test Signals

    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 Ω cable and be sure that the signal path is terminated properly. TSG 601 User Manual www.valuetronics.com...
  • Page 19 The available signals and their corresponding keys are listed below. Test Signal Direct-Select Key 75% Color Bars 100% Color Bars Pluge 1 (BBC 1) Pluge 2 (BBC 2) 5-Step Staircase Limit Ramp Shallow Ramp TSG 601 User Manual www.valuetronics.com...

  • Page 20: Adjusting The Output Amplitude

    “Channel Output Selection.” The display will look something like this: 2. Use the keys to position the flashing underline cursor to " the status (ON or OFF) of the channel you wish to change. TSG 601 User Manual www.valuetronics.com...

  • Page 21: Specifying 8- Or 10-Bit Data Words

    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...

  • Page 22: Inserting Id Messages

    H Toggle the ID message or cycle on and off with the “ID On/Off” key. Editing ID Messages Please read “ID Messages” on page 19 before you first attempt to edit a TSG 601 ID. 1. Enter the ID menu (press Shift , then ID On/Off 2.

  • Page 23: Positioning Id Messages

    3. Use the keys to move the underline cursor to one of the " four sequence “time intervals.” The IDs will appear in the order that their numbers appear (from left to right) on the display. TSG 601 User Manual www.valuetronics.com...

  • Page 24: Inserting Embedded Audio

    1. Enter the Audio menu (press Shift , then Audio On/Off ). The display will look something like this: 2. Go into the Audio Group Selection menu by pressing the ENTER key. The display will change to: TSG 601 User Manual www.valuetronics.com...

  • Page 25: Specifying Inserted Audio Channels In The Group

    To change the frequency assignments, do the following: 1. If necessary, enter the Audio menu (press Shift , then Audio On/Off TSG 601 User Manual www.valuetronics.com...

  • Page 26: Changing Audio Channel Amplitudes

    Press ENTER key to confirm these choices. 4. Press any rectangular key to exit the Audio menu, or use the keys to go to the next selection within the Audio menu. TSG 601 User Manual www.valuetronics.com...

  • Page 27: Audio Channel Id

    Cable Simulation H To simulate the addition of 50 meters of 75 Ω coaxial cable anywhere in your system, connect the TSG 601 into the signal path with the two BNCs marked “APPROX 50M CABLE.” The connectors are interchangeable, and the circuit will accurately simulate 50 m of Belden 8281 cable—which attenuates the signal...

  • Page 28: Saving (Storing) Presets And Ids

    Recall pied (and the previous contents of the ID# location overwritten) even when no message appears in the TSG 601 output (ID=Off). A preset includes all of the instrument settings in effect when the preset is saved, including the current output format, test signal, ID#, and cycle setup.

  • Page 29: Details

    CRCs and their use, and freely paraphrases the proposed SMPTE recommended practice on the topic, RP 165. Those familiar with the concepts should skip down to “TSG 601 CRC Options,” below, for a discussion of the available CRCs.
  • Page 30 Many receiving devices will report the discrepancy as an error. The TSG 601 is a transmitting device, and the companion SDA 601 is a receiving device. A digital VTR, of course, can be both.

  • Page 31: Id Messages

    Operating Basics ID Messages The TSG 601 lets the user edit ID messages “off line.” This means that you can edit a message without affecting the instrument’s out- put—or the ID currently inserted in the picture. To help prevent inad- vertent changes to the current ID, the instrument will only insert ID messages that have been saved through the ID menu or the Store key.

  • Page 32: The Sdi Checkfield Signals

    Pathological signals—are designed to test the low frequency re- sponse of serial digital video equipment. The three SDI Checkfield signals in the TSG 601 are defined in the (proposed) SMPTE Recom- mended Practice RP 178; they are the Cable Equalization (Equaliz- er), Phase Locked Loop (PLL), and Matrix Checkfields.
  • Page 33 The third TSG 601 SDI Checkfield signal is a matrix of the other two. For a much more complete discussion of SDI Check Fields and their use, please see SMPTE RP 178 and Tektronix publication 25W-7203-1, “A Guide to Digital Television Systems and Measure-...
  • Page 34 Operating Basics TSG 601 User Manual www.valuetronics.com...
  • Page 35 Appendices www.valuetronics.com...
  • Page 36 www.valuetronics.com...

  • Page 37: Appendix A: Characteristics

    Appendix A: Characteristics The information in this section is included for the convenience of the TSG 601 operator. It is not intended as a complete list of guaranteed specifications. The waveform illustrations represent properly de- coded output. For a full list of instrument specifications, as well as...

  • Page 38: Specification Tables

    525 B–Y, R–Y –157.3 mV 625 B–Y 83.7 mV 625 R–Y 94.4 mV Limit Ramp See Figures 14 and 15 In 8-bit, extends from word 01 to 254 In 10-bit, extends from word 04 to 1016 TSG 601 User Manual www.valuetronics.com...
  • Page 39 0.5, 1, 2, 3, 4, and 5 MHz R–Y, B–Y 0.25, 0.5, 1, 1.5, 2, and 2.5 MHz 500 kHz Bowtie See Figures 26, 27, and 28 Y channel 500 kHz sine wave R–Y, B–Y 502 kHz sine wave Amplitude 350 mV TSG 601 User Manual www.valuetronics.com...

  • Page 40: Table 2: Encoding Parameters

    Samples per complete line 525/60; 625/50 Luminance (Y) 858; Color Difference 429; (B–Y, R–Y) Sampling Structure Orthogonal, line, field, and picture repetitive. R–Y and B–Y samples co-sited with odd (1st, 3rd, 5th, etc.) Y samples in each line. TSG 601 User Manual www.valuetronics.com...

  • Page 41: Table 3: Serial Digital Video Output

    Number of Outputs 1 component serial video. Digital Format CCIR 601 Component 525/625, 8 or 10 bits data, scrambled NRZI; complies with CCIR 656 and SMPTE 259M. Bit Rate 270 Mb/s 75 Ω Source Impedance TSG 601 User Manual www.valuetronics.com...

  • Page 42: Table 4: Cable Simulator

    Characteristic Performance Supplemental Information Requirements –5.4 dB ± 0.5 dB at 135 MHz Length (Approximates a 50 meter length of Belden 8281 coax cable) ≥ 20 dB from 5 MHz to Return Loss 270 MHz TSG 601 User Manual www.valuetronics.com...

  • Page 43: Table 5: Character Identification

    Uses default settings except that Source ID bits may be set to identify each channel with a fixed code. See Table 7 Audio Sample Distribution 525 – See Table 8 625 – See Table 9 TSG 601 User Manual www.valuetronics.com...

  • Page 44: Table 7: Audio Channel Status Bits

    (ASCII “4” for channel 4) 0–7 0000 0000 Source ID 0–7 0000 0000 Unused 0–7 0000 0000 Unused 0–7 0000 0000 Unused 0–7 0000 0000 Unused 0–7 0000 0000 Unused 0–7 0000 0000 Unused 0–7 0000 0000 Unused TSG 601 User Manual www.valuetronics.com...

  • Page 45: Table 8: 525/59.94 Embedded Serial Audio Sample Dist

    Transmitted Samples Samples Line Numbers Line Numbers 268 (5) 273 (10) 274 (11) 275 (12) 280 (17) 292 (29) 304 (41) 316 (53) 328 (65) 340 (77) 352 (89) 364 (101) 376 (113) 388 (125) TSG 601 User Manual www.valuetronics.com...

  • Page 46: Table 9: 625/50 Embedded Serial Audio Sample Dist

    Table 9: 625/50 Embedded Serial Audio Sample Distribution Analog Field 1 Analog Field 2 Transmitted Transmitted Line Numbers Samples Line Numbers Samples 317 (4) 318 (5) 319 (6) 320 (7) 327 (14) 337 (24) 347 (34) 357 (44) 367 (54) TSG 601 User Manual www.valuetronics.com...
  • Page 47 477 (164) 487 (174) 497 (184) 507 (194) 517 (204) 527 (214) 537 (224) 547 (234) 557 (244) 567 (254)_ 577 (264) 587 (274) 597 (284) 607 (294) 617 (304) All Other Lines All Other Lines TSG 601 User Manual www.valuetronics.com...

  • Page 48: Table 10: Physical Characteristics

    Category II (as defined in IEC 1010-1, Annex J) Note: Rated for indoor use only. Pollution Degree Pollution Degree 2 (as defined in IEC 1010-1) Transportation Meets the requirements of NTSB Test Procedure 1A, category II (24 inch drop) TSG 601 User Manual www.valuetronics.com...

  • Page 49: Waveform Diagrams

    Waveform Diagrams NOTE. The following diagrams represent the analog equivalents of the TSG 601 digital test signals. Horizontal axis units are microse- conds (ms) after the start of Digital Active Video. Unless specified in the caption, each illustration represents both 525 line/60 Hz and 625/50 Hz signals.

  • Page 50: Figure 2: 75% Color Bars, B-Y

    Appendix A: Characteristics Figure 2: 75% Color Bars, B–Y Figure 3: 75% Color Bars, R–Y TSG 601 User Manual www.valuetronics.com...

  • Page 51: Figure 4: 100% Color Bars, Y

    Appendix A: Characteristics Figure 4: 100% Color Bars, Y Figure 5: 100% Color Bars, B–Y TSG 601 User Manual www.valuetronics.com...

  • Page 52: Figure 6: 100% Color Bars, R-Y

    Appendix A: Characteristics Figure 6: 100% Color Bars, R–Y Figure 7: Pluge 1, Y only TSG 601 User Manual www.valuetronics.com...

  • Page 53: Figure 8: 625 Line Pluge 2, Y Channel Only

    Appendix A: Characteristics Figure 8: 625 Line Pluge 2, Y channel only Table 13: Pluge Timing 21.57 µs 625 & 525 23.87 26.17 28.47 40.07 52.07 Figure 9: 525 Line Pluge 2, Y only TSG 601 User Manual www.valuetronics.com...

  • Page 54: Figure 10: 5-Step Staircase And Modulated 5-Step, Y

    Appendix A: Characteristics Figure 10: 5-Step Staircase and Modulated 5-Step, Y Figure 11: 5-Step Staircase, B–Y and R–Y Table 14: 5-Step Staircase and Modulated 5-Step Timing 6.96 µs 625 & 525 13.48 20.07 26.59 33.18 39.70 46.30 TSG 601 User Manual www.valuetronics.com...

  • Page 55: Figure 12: 625 Line Modulated 5-Step, B-Y And R-Y

    Appendix A: Characteristics Figure 12: 625 Line Modulated 5-Step, B–Y and R–Y Figure 13: 525 Line Modulated 5-Step, B–Y and R–Y TSG 601 User Manual www.valuetronics.com...

  • Page 56: Figure 14: Limit Ramp, Y

    Appendix A: Characteristics Figure 14: Limit Ramp, Y Figure 15: Limit Ramp, B–Y and R–Y TSG 601 User Manual www.valuetronics.com...

  • Page 57: Figure 16: Shallow Ramp, Y

    Appendix A: Characteristics Figure 16: Shallow Ramp (10 possible amplitudes), Y Figure 17: Shallow Ramp (10 possible amplitudes), B–Y and R–Y TSG 601 User Manual www.valuetronics.com...

  • Page 58: Figure 18: 625 Line Mod Pulse And Bar, Y

    Appendix A: Characteristics Figure 18: 625 Line Mod Pulse and Bar, Y Figure 19: 625 Line Mod Pulse and Bar, B–Y Figure 20: 625 Line Mod Pulse and Bar, R–Y TSG 601 User Manual www.valuetronics.com...

  • Page 59: Figure 21: 525 Line Mod Pulse And Bar, Y

    Appendix A: Characteristics Figure 21: 525 Line Mod Pulse and Bar, Y Figure 22: 525 Line Mod Pulse and Bar, B–Y Figure 23: 525 Line Mod Pulse and Bar, R–Y TSG 601 User Manual www.valuetronics.com...
  • Page 60 Appendix A: Characteristics Figure 24: 60% Line Sweep with Markers, Y Figure 25: 60% Line Sweep with Markers, B–Y and R–Y TSG 601 User Manual www.valuetronics.com...
  • Page 61 Appendix A: Characteristics Figure 26: 500 kHz Bowtie (reduced amplitude), Y Figure 27: 500 kHz Bowtie (reduced amplitude), B–Y and R–Y Figure 28: Bowtie Markers, Y channel only TSG 601 User Manual www.valuetronics.com...
  • Page 62 Appendix A: Characteristics Figure 29: Convergence, Vertical Lines; Y channel only Figure 30: Convergence, Horizontal Lines; Y only TSG 601 User Manual www.valuetronics.com...

  • Page 63: Table 15: Active Picture Markers Timing

    Table 15: Active Picture Markers Timing 0.72 µs 625/50: Y 52.72 1.04 52.44 53.26 625/50: B, R–Y (µs) — 1.04 52.44 53.18 0.16 µs 525/60: Y 53.02 0.29 52.89 53.26 525/60: B, R–Y (µs) — 0.29 52.89 53.18 TSG 601 User Manual www.valuetronics.com...
  • Page 64 Appendix A: Characteristics Figure 33: The Significance of the Active Picture Markers TSG 601 User Manual www.valuetronics.com...

  • Page 65: Appendix B: Replaceable Parts

    Appendix B: Replaceable Parts The following Replaceable parts for the TSG 601 are available through your local Tektronix, Inc. field office or representative. It is important when ordering parts to include the following informa- tion in your order: Part number; instrument type and number; instru- ment serial number;...
  • Page 66 TSG 601 User Manual www.valuetronics.com...

  • Page 67: Appendix C: User Service

    The BATTERY LOW Message The warning “BATTERY LOW” will appear on the second line of the TSG 601 display when the battery voltage drops below a prede- termined level. The level depends on the Battery Type set in the diagnostic menu (see page 57). The TSG will operate for approxi- mately ten minutes after the message first appears.

  • Page 68: The Diagnostic Menu

    Low-battery shut down can happen with little or no warning if, for instance, the instrument has been left on by mistake with Auto Power Down disabled. In such cases, the TSG 601 is likely to shut itself down almost immediately the next time you switch it on. If this hap-...
  • Page 69 Signal Ampl. CAL Press ENTER 6. Signal Amplitude Calibrate; please see the TSG 601 Service Manual (p/n 070-8911- ) for further information. CAUTION. Changing this setting will affect the serial video output amplitude and may give unexpected results.

  • Page 70: Preventive Maintenance

    See the Ser- vice manual for performance verification and adjustment procedures. CAUTION. The TSG 601 case is made of molded plastic. Do not allow water to get inside any enclosed assembly or component. Do not clean any plastic materials with organic cleaning solvents—benzene,...