Page 1 Instruction Manual VITS100 NTSC VITS Inserter 070-8333-02 Warning The servicing instructions are for use by qualified personnel only. To avoid personal injury, do not perform any servicing unless you are qualified to do so. Refer to all safety summaries prior to performing service.
Page 2 Copyright © Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved. Printed in the U.S.A.
Page 3 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.
Page 4 www.valuetronics.com...
Page 5 H Eliminates unexpected service expenses For Information and Ordering For more information or to order Service Assurance, contact your Tektronix representative and provide the information below. Service Assurance may not be available in locations outside the United States of America.
Page 6 www.valuetronics.com...
Page 7 ..........7–4 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 8 ............A–6 Index VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 9 Figure 2–2: VITS100 NTSC VITS Inserter rear panel ... . 2–2 Figure 2–3: VITS100 NTSC VITS Inserter source ID signal ..2–4 Figure 2–4: Location of VITS selection switches .
Page 10 ........A–7 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 11 ......6–5 Table 6–3: TSG/SPG Multiburst Settings ..... . 6–10 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 12 Table A–5: Cable System Test Signal Characteristics ... . . A–6 Table A–6: Option 2 Factory Programmed VITS Insertions ..A–8 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 13 Provide Proper Ventilation. Refer to the manual’s installation instructions for details on installing the product so it has proper ventilation. Symbols and Terms Terms in this Manual. These terms may appear in this manual: VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 14 Symbols on the Product. The following symbols may appear on the product: Double Protective Ground CAUTION WARNING Not suitable for Insulated (Earth) Terminal Refer to Manual High Voltage connection to the public telecom- munications network viii VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 15 Use Care When Servicing With Power On. Dangerous voltages or currents may exist in this product. Disconnect power, remove battery (if applicable), and disconnect test leads before removing protective panels, soldering, or replacing components. To avoid electric shock, do not touch exposed connections. VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 16 Service Safety Summary VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 17 Getting Started www.valuetronics.com...
Page 18 www.valuetronics.com...
Page 19 Getting Started The Tektronix VITS100 NTSC VITS Inserter is a high quality signal generator designed to insert VITS (Vertical Interval Test Signals) into program video. It automatically switches to bypass mode in the event of power failure or loss of lock to the program video.
Page 20 The VITS inserter can also insert a one-line source identification code on any of the available lines in vertical blanking. The Tektronix VM700A Video Measure- ment Set can then use this code to identify the source of the signal it is measur- ing.
Page 21 Confirm that the VITS inserter BYPASS and UNLOCKED LEDs are no longer lit. 6. Switch the waveform monitor on and configure it to display two fields of the VITS inserter PROGRAM OUT waveform. 1–3 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 22 8. Configure the waveform monitor line-select feature to view one line at a time. Check lines 17 through 20 of fields 1 and 2 for test signals. Tables 1–1 through 1–3 list the signals generated and inserted by a new VITS100 NTSC VITS Inserter with the as-manufactured configuration. See the Specifications Section of this manual or Appendix A: Options for diagrams of the signal waveforms.
Page 23 H TVGF11A—Single Rack Mount Adapter H TVGF13—Dual Rack Adapter H TVGF14—Dual Half-Rack Adapter Please contact your nearest Tektronix representative or field office for more information. 2. Connect the VITS inserter to your system as shown in Figure 1–2. 3. See the Operating Basics section of this manual for more information about configuring and using the VITS inserter.
Page 24 Getting Started 1–6 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 25 Operating Basics www.valuetronics.com...
Page 26 www.valuetronics.com...
Page 27 Operating Basics The VITS100 NTSC VITS Inserter can generate any one of thirteen test signals for insertion on lines 17 through 20 in the vertical interval of the video frame. If power fails or the instrument cannot genlock, the VITS inserter automatically switches to bypass mode.
Page 28 Operating Basics Rear Panel The VITS100 NTSC VITS Inserter rear panel, shown in Figure 2–2, contains the mains power input, switch, and fuse; the program input and output connectors; DIP switches for source identification code selection; and a remote connector.
Page 29 VIRS, or insert a source ID on lines 17, 18, 19, and 20 of both the even and odd fields of NTSC video. Inserting Test Signals The standard VITS100 NTSC VITS Inserter can insert the following test signals into the vertical interval: H FCC Color Bars...
Page 30 SOURCE ID switches. Source ID is set by the user to provide a visual identification of the signal path. Some equipment, such as the Tektronix VM700A Video Measurement Set, can use this signal to generate an alpha-numeric ID on the screen display or on printed reports. Figure 2–3 shows the waveform of a source identification code that is generated when...
Page 31 Operating Basics Factory Configuration The VITS100 NTSC VITS Inserter is configured during manufacture to insert the signals listed in Table 2–1. See VITS Selection, below, for instructions on configuring the VITS inserter to insert the signals that best suit your applications and facility.
Page 32 S4 make the selections for fields 2 and 4. Each DIP switch selects the test signals for two of the vertical interval lines, as shown in Figure 2–5. Program color fields Program color fields 1 and 3 2 and 4 Figure 2–5: The VITS selection DIP switches 2–6 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 33 Multiburst Multipulse NTC 7 Composite NTC 7 Combination Red Field SIN X/X VIRS Pass Program Video Auto VIRS Insert Source ID * 1 signifies an OPEN switch; 0 signifies a closed switch 2–7 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 34 Operating Basics Remote Control Remote control in the standard VITS100 NTSC VITS Inserter is limited to ground-closure Bypass control and (+5 V) outputs for remote BYPASS, UNLOCKED, and POWER indicator lights. See Figure 2–6 and Table 2–3 for the rear-panel REMOTE connector pin assignments.
Page 35 Specifications www.valuetronics.com...
Page 36 www.valuetronics.com...
Page 37 Specifications This section contains tables that list the specifications for the VITS100 NTSC VITS Inserter. All specifications are guaranteed unless noted “typical.” The performance limits in this specification are valid with these conditions: H The VITS inserter must have been calibrated/adjusted at an ambient...
Page 38 0 IRE Luminance with sync and burst; see Figure 3–1. 7.5% Black 7.5 IRE Luminance with sync and burst; see Figure 3–2. 50% Gray 50 IRE Luminance with sync and burst; see Figure 3–3. 3–2 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 39 1.0 IRE or less Modulated SIN Pulse Pulse-to-Bar Peak Amplitude 100% 1.563 ms ±150 ns Half Amplitude Duration 60.8° ±1° Phase 100 IRE ±1 IRE Amplitude 250 ns ±25 ns Rise Time 3–3 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 40 Other Packets 400 ns typical (sin shaped packets) Table 3–7: Multipulse characteristics Characteristic Information Timing See Figure 3–7 Amplitudes 80 IRE Frequencies 1.0 MHz, 2.0 MHz, 3.0 MHz, 3.58 MHz, and 4.2 MHz 3–4 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 41 Chrominance Amplitude 20.01 IRE ±0.5 IRE 20 IRE 40.02 IRE ±0.5 IRE 40 IRE 80 IRE 80.04 IRE± .5 IRE 90° ±0.5° Phase relative to burst 400 ns ±40 ns Rise Time 3–5 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 42 160.72 mV ±1% Amplitude, Option 1J 250 ns ±25 ns Rise Time Chrominance 630.1 mV ±1% Amplitude, Standard 681.23 mV ±1% Amplitude, Option 1J 103.4° ±0.3° Phase 400 ns ±40 ns Rise Time 3–6 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 43 500 kHz, 1.25 MHz, 2.0 MHz, 3.0 MHz, 3.75 MHz, 4.0 MHz Packet Rise Time 500 kHz Packet 140 ns typical (sin shaped packets) Other Packets 400 ns typical (sin shaped packets) 3–7 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 44 Typically ≤0.4° peak for input amplitude range of 287 mV ±6 dB; no noise on input signal ≤10 ns for input sync amplitude range of 287 mV ±3 dB (No noise on input signal) Sync Lock Jitter Noise Performance Locks to 28 dB S/N Ratio Video 3–8 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 45 15 V to 16.5 V, as determined by supply load Table 3–17: Physical characteristics Characteristic Information Height 1.734 in (4.404 cm) Width 8.1 in (20.6 cm) Length 17.2 in (43.7 cm) Weight 4.7 lbs (2.1 kg) Shipping 16.7 lbs (7.6 kg) 3–9 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 46 55 Hz. Shock 50 G, sine, 11 ms duration, three guillotine shocks per side Transportation Qualified under NTSB Test Procedure 1A, Category II (36-inch drop) 3–10 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 47 CSA safety requirements for electrical and electronic measuring and test equipment. European Union Compliance Low Voltage Directive 73/23/EEC, amended by 93/69/EEC EN 61010-1 Safety requirements for electrical equipment for measurement, control, and laboratory use. 3–11 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 48 Pollution Degree 2 (as defined in IEC 1010-1). Note: Rated for indoor use only. Waveform Diagrams The diagrams in Figures 3–1 through 3–14 contain timing information for the various test signals generated by the VITS100 NTSC VITS Inserter and described in Tables 3–3 through 3–14. Figure 3–1: 0% Black 3–12...
Page 49 Specifications Figure 3–2: 7.5% Black Figure 3–3: 50% Gray 3–13 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 50 Specifications Figure 3–4: FCC Color Bars Figure 3–5: FCC Composite 3–14 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 51 Specifications Figure 3–6: Multiburst Figure 3–7: Multipulse 3–15 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 52 Specifications Figure 3–8: NTC7 Combination Figure 3–9: NTC7 Composite 3–16 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 53 Specifications Figure 3–10: Red Field Figure 3–11: SIN X/X 3–17 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 54 Specifications Figure 3–12: VIRS Figure 3–13: Cable Multiburst 3–18 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 55 Specifications Figure 3–14: Cable Sweep 3–19 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 56 Specifications 3–20 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 57 WARNING The following servicing instructions are for use only by qualified personnel. To avoid injury, do not perform any servicing other than that stated in the operating instructions unless you are qualified to do so. Refer to all Safety Summaries before performing any service.
Page 58 www.valuetronics.com...
Page 59 Theory of Operation www.valuetronics.com...
Page 60 www.valuetronics.com...
Page 61 Test Signal Generation. The VITS100 NTSC VITS Inserter can insert four lines on odd and even fields. Signals are selected with four DIP switches on the main circuit board.
Page 62 Diagram 1. Test signal data is stored in PROMs U4, U5, and U6. U4 and U5 store the eight MSBs of alternate data samples. U6 stores the four LSBs for all data 4–2 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 63 Composite sync and the backporch timing are shifted to TTL levels by Q1, Q3, VR1, and VR2. Their outputs are gated together by U57A and U57B to produce the clamp pulse for U42. 4–3 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 64 Genlock sub-clock cycle timing can be adjusted up to 90 with S7. The VITS signals are timed to program video input at the factory and should not need adjustment. S8 is a diagnostics switch; see the Maintenance section for details. 4–4 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 65 The circuitry that controls source ID generation appears on two of the schematic diagrams in the Diagrams section of this manual. Key circuitry is located on diagrams 1 (Test Signal Memory) and 3 (H & V Counters, Source Identification & Bypass Controls). 4–5 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 66 The source identification signal is one line of video with up to sixteen pulses on it that can be recognized by a Tektronix VM 700A Video Measurement Set. The VM 700A expects a start and a stop bit, but the other 14 bits (pulses) can be used to identify up to 16,384 sources.
Page 67 +5 V goes down. When the +5 V is too low, U78 increases the pulse width and the mechanism is reversed. Removing P18, a troubleshooting jumper, interrupts the power to T1 for inspection of U78 and the emitter-drive circuit for Q16. 4–7 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 68 Current In secondaries Voltage across primary +5.6V Voltage across +5 V secondary –V Voltage across -5 V secondary –5.6V Output Output diodes on diodes off Figure 4–1: Inductor and switching transistor switching functions 4–8 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 69 Q16 is a high blocking voltage (1000V) power transistor. To prevent transistor failure and ensure proper operation, its base must have a large forward current during the on-time and a large momentary reverse current pulse during turn off. 4–9 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 70 Diagram 9. The regulated 5 V supplies used by the ADC and the DAC are generated from the 12 V supplies by three-terminal linear regulators (U52 and U53). 4–10 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 71 Performance Verification www.valuetronics.com...
Page 72 www.valuetronics.com...
Page 73 Performance Verification This section contains procedures for verifying that the VITS100 NTSC VITS Inserter performs according to the characteristics stated in the Specifications section of this manual. If the VITS inserter fails to meet a performance requirement, consult the Adjustment Procedure section and make only those adjustments that affect the “out of spec”...
Page 74 Tektronix DM252 Power Module Power supply for Frequency Counter, Tegam TM506A Power Module Mainframe Peak-to-Peak Detector, video noise generator, and Multimeter 75 W End-Line Terminators (two) 0.25% Accuracy Tektronix part number 011-0102-01 5–2 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 75 1. Connect a 75 W coaxial cable from the output of the television test signal generator to the video measurement set Ch A input. Terminate the open side of the loop-through input with a 75 W end-line terminator. 5–3 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 76 (DIP) switches S1–S4 (see Figure 5–1). Record the settings so you can restore them once you complete this procedure. Program color fields Program color fields 1 and 3 2 and 4 Figure 5–1: VITS selection DIP switches 5–4 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 77 Insert Source ID * 1 signifies an OPEN switch; 0 signifies a closed switch 3. Set all the remaining DIP switches to the “pass incoming” position, which is all segments open (1111). 5–5 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 78 0 IRE level of the graticule. 4. Set the waveform/vector monitor to Ch A DC input. 5. Check that the signal blanking is at 0 V "10 mV ("3 minor div). See Figure 5–3. 5–6 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 79 1. Connect a 75 W coaxial cable from the Test Signal Generator/Sync Pulse Program Video Channel Generator (TSG/SPG) subcarrier output to the waveform/vector monitor Ext CW Ref. Terminate the remaining side of the loop-through input with a 75 W end-line terminator. See Figure 5–4. 5–7 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 80 CRT. 9. Set the waveform/vector monitor for line select to display field 1, line 17. 10. Check that the burst vector is still at 0° "1°. 5–8 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 81 4. Set VITS inserter DIP switches S1 and S3 to 1010 (segments 5 and 7 open, segments 6 and 8 closed) to insert the NTC7 Composite test signal on line 18 of all fields. 5–9 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 82 MONITOR OUT. 9. Return the video measurement set to full field measurement. 10. Check that the chroma gain is 100.0 " 0.5%. 11. Check that the chroma delay is 0.0 v 5 ns. 5–10 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 83 Video measurement set Test Signal Television test signal generator 75 W Adapter Terminator Figure 5–6: Setting up for pulse-to-bar measurement 2. Observe and remember the pulse-to-bar ratio on the video measurement set screen. 5–11 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 84 1. At the video measurement set, select K-Factor measurement. 2. Check that K-factor (2T) is v 0.3%. 3. Select line 18, any field, on the video measurement set. 4. Check that K-factor (2T) is v 0.3%. 5–12 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 85 5. Connect a 75 W coaxial cable from the VITS inserter PROGRAM OUT to the video measurement set Ch A. Terminate the remaining side of the loop-through input with a 75 W terminator. See Figure 5–8. 5–13 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 86 3. Measure the leading edge of the bar between the 10 and 90% points (10 IRE to 90 IRE on the waveform graticule). 4. Check that the risetime is between 120 ns and 160 ns. 5–14 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 87 Ch A input. Terminate the remaining side of the loop-through input with a 75 W terminator 7. Set the waveform/vector monitor line select to line 19 and check that the VIRS signal is displayed. 5–15 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 88 Set the red bar to null on the waveform monitor. 28. Check that the red bar phase changes ≤ 2_ as you vary the video noise generatordB to +3 dB. 29. Return the video noise generator Attenuation to 0 dB. 5–16 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 89 45. Set video noise generator for 28 dB noise. 46. Turn White Noise on. 47. Check that the VITS inserter remains locked. 48. Disconnect the video noise generator from the VITS inserter. 5–17 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 90 6. Set the spectrum analyzer Vertical Scale to 10 dB. 7. Set the spectrum analyzer Marker to 5 MHz. 8. Reconnect the cable to the RF Bridge. 9. Note the marker reference level readout. 5–18 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 91 25. Check that the marker level readout is w36 dBm down. 26. Set the spectrum analyzer controls as shown in Table 5–3. Table 5–3: Spectrum Analyzer Settings Control Setting Center Frequency 10 MHz Reference Level 0 dB Freq Span/Div 10 MHz 5–19 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 92 TSG/SPG Multiburst Generator output to the Peak-to-Peak Detector Head Input. See Figure 5–10. Peak-to-peak detector Test oscilloscope TSG/SPG INPUT OUTPUT Multiburst Peak-to-peak Adapter detector head Figure 5–10: The initial frequency response setup 5–20 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 93 6. Connect 75 W cable from the peak-to-peak detector output to the test oscilloscope input. 7. Measure the sweep envelope. See Figure 5–11. Figure 5–11: Frequency response display 8. Remove the BNC female to-female adaptor. 5–21 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 94 2. Connect a 75 W coaxial cable from the VITS inserter PROGRAM OUT to the waveform/vector monitor input. Terminate the remaining side of the loop-through connector with a 75 W end-line terminator. 5–22 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 95 3. Check that the VIRS signal is displayed on the waveform/vector monitor. 4. Use a short piece of wire to short pin 6 of the rear-panel REMOTE connector to ground. (Pins 1, 4, and 9 of the REMOTE connector are ground.) 5–23 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 96 5. Check that the VIRS signal disappears and the VITS inserter front-panel BYPASS light comes on. 6. Remove the grounding wire. 7. Check that the VIRS signal reappears and the VITS inserter front-panel BYPASS light goes out. 5–24 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 97 Adjustment Procedure www.valuetronics.com...
Page 98 www.valuetronics.com...
Page 99 Adjustment Procedures If VITS100 NTSC VITS Inserter performance is not within tolerance for a particular characteristic, determine the cause, repair if necessary, and then use the appropriate adjustment procedure to return the instrument operation to perfor- mance specification. After any adjustment, verify performance by repeating the applicable part of the Performance Verification procedure.
Page 100 In these cases you need only adjust the portion of the VITS inserter that does not meet specifications. 6–2 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 101 VITS inserter PROGRAM IN. H Turn on all test equipment and allow for any required warm-up period. H Figure 6–1 shows the location of adjustments and test points (TP) used in this procedure. 6–3 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 102 PROGRAM GAIN C165 R171 DC ADJ CURRENT R210 LIMIT SIN X/X Pin 18 R127 DC ADJ HORIZ OSC TP10 R170 +5 VOLTS ADJUST +12V TP11 -12V Figure 6–1: Adjustments and test points 6–4 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 103 5. Connect a 75 W coaxial cable from the VITS inserter PROGRAM OUT to the waveform/vector monitor Ch A input. Terminate the remaining side of the loop-through input with a 75 W end-line terminator. See Figure 6–2. 6–5 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 104 10. Check that the blanking level is 0 V "10 mV (3 minor div). 11. Set S1 VITS selection dual-inline-package (DIP) switch segments 1 and 4 closed, 2 and 3 open (0110). See Figure 6–3 for the location of S1. 6–6 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 105 1. Connect the test signal generator to the CH A input of the waveform/vector monitor with two 75 W coaxial cables and a female-to-female BNC connector as shown in Figure 6–4. Terminate the remaining side of the monitor loop-through with a 75 W terminator. 6–7 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 106 6. Adjust Program Gain, R33, to match the amplitude noted in step 4. 75 W Waveform/Vector Monitor Terminator VITS Inserter CH A input Program In Program Out Test Signal Television Test Signal Generator Figure 6–5: Equipment for setting gain adjustments 6–8 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 107 7. Connect the multiburst output from the television test signal generator/sync pulse generator (TSG/SPG) to the peak-to-peak detector head input with two 75 W coaxial cables and a female-to-female BNC adapter, as shown in Figure 6–6. 6–9 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 108 11. Set + input level to light the green LED (full clockwise). 12. Connect a 75 W coaxial cable from the peak-to-peak detector output to test oscilloscope input. 13. Measure the sweep envelope. See Figure 6–7. 6–10 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 109 Program In Figure 6–8: Setting flatness 16. Connect the 75 W coaxial cable from the Peak-to-Peak Detector Head Input to the VITS inserter PROGRAM OUT as shown in Figure 6–8. 6–11 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 110 4. Remove the plastic plug from the oscillator cover to reveal C19. See Figure 6–1. 5. Adjust C19 for an oscillator frequency of 28.636364 MHz ±1 Hz. 6. Replace the C19 access plug. 7. Disconnect the X10 probe from the VITS inserter TP 11. 6–12 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 111 Maintenance www.valuetronics.com...
Page 112 www.valuetronics.com...
Page 113 Warranty Repair Service Tektronix warrants this product for one year from the date of purchase. (The warranty appears at the front of this manual.) Tektronix technicians provide 7–1 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 114 Depot Service repair of this instrument. Of these services, the annual maintenance agreement offers a particularly cost-effective approach to service for many owners of the VITS100 NTSC VITS Inserter. Such agreements can be purchased to span several years. For More Information Contact your nearest Tektronix service center or sales engineer for more information about any of the available repair or adjustment services.
Page 115 8. Avoid handling components in areas where the floor or work surface covering is capable of generating a static charge. 9. Use a soldering iron that is connected to earth ground. 10. Use only special antistatic suction or wick-type desoldering tools. 7–3 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 116 There are 3 plug jumpers for mode selection and 14 test jumpers for use during repair or troubleshooting on the VITS100 NTSC VITS Inserter circuit board. See Figure 7–1 for plug jumper locations and Tables 7–1 and 7–2 for their functions.
Page 117 All installation procedures that do not require removing the protective cover of the VITS inserter are discussed in the Getting Started section of this manual. The VITS100 NTSC VITS Inserter does have some additional flexibility, however, that is provided with the internal plug jumpers. Instructions for setting the...
Page 118 Pins 2–3: 0% Character Set-Up (Option 1J). Memory Bank Select Pins 1–2: Standard signals. 1–2 Pins 2–3: Option 1J signals. V Drive Pins 1–2: Used by VITS 200. 2–3 Pins 2–3: VITS 100. 7–6 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 119 CAUTION. This instrument contains static sensitive devices that can be damaged by static discharge. Please read Static Sensitive Components, on page 7–2, before attempting to clean the interior of the VITS inserter. 7–7 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 120 1. Carefully slide the front panel over the BYPASS switch and the three LEDs. 2. Install the two flat head screws that hold the front panel to the front edge of the instrument bottom. 7–8 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 121 5. Plug the remote connector cable (from the rear panel) into J27 on the inserter circuit board. 6. Install the hex nuts on the three rear-panel BNC connectors. 7. Replace the front panel. 8. Replace the instrument top cover. 7–9 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 122 Removal. Use the following procedure to remove the oscillator circuit board. 1. Remove the instrument top cover. 2. Remove the two screws that hold the plastic insulating case to the inserter circuit board and remove the top part of the case. 7–10 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 123 If any of these fail, the front-panel UNLOCKED LED lights, and the routine runs again. The VITS inserter will not lock to program video until it successfully completes the power-up diagnostics. 7–11 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 124 EPROM. When selected through the lock to program (in- diagnostic switch, the test runs put) video. continuously. During power up diagnostics, it runs once. 7–12 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 125 Used for checking genlock timing acquisition timing. pulses on CTC A1U30 pins 20–23. Trigger on input video. Not Used Not Used Not Used Not Used Not Used 7–13 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 126 Maintenance 7–14 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 127 Replaceable Electrical Parts www.valuetronics.com...
Page 128 www.valuetronics.com...
Page 129 Replaceable Electrical Parts This section contains a list of the electrical components for the VITS100 NTSC VITS Inserter. Use this list to identify and order replacement parts. Parts Ordering Information Replacement parts are available through your local Tektronix field office or representative.
Page 130 Chassis-mounted parts have no assembly number prefix, and they are located at the end of the electrical parts list. Tektronix Part Number Use this part number when ordering replacement parts from Tektronix. 3 and 4 Serial Number Column three indicates the serial number at which the part was first effective. Column four indicates the serial number at which the part was discontinued.
Page 131 RODAN DIVISION 15513 DATA DISPLAY PRODUCTS 301 CORAL CIR EL SEGUNDO CA 90245–4620 17856 SILICONIX INC 2201 LAURELWOOD RD SANTA CLARA CA 95054–1516 18565 CHOMERICS INC 77 DRAGON COURT WOBURN MA 01801–1039 8–3 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 132 DALE ELECTRONICS INC 2300 RIVERSIDE BLVD NORFOLK NE 68701–2242 PO BOX 74 57668 ROHM CORPORATION 15375 BARRANCA PARKWAY IRVINE CA 92718 SUITE B207 59492 QUARTZTEK INC 20 S 48TH AVE PHOENIX AZ 85043–3820 8–4 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 133 LONDON SE 3 9RD ENGLAND BLACKHEATH TK1828 LITE SPECIALTY METAL WORKS 20460 SW AVERY CT TUALATIN OR 97062 TK1913 WIMA 2269 SAW MILL RIVER ROAD ELMSFORD NY 10523 THE INTER–TECHNICAL GROUP IND PO BOX 127 8–5 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 134 SHERMAN OAKS CA 91403–3501 SUITE 1003 TK2262 RPM ENTERPRISES 3305 W CASTOR ST SANTA ANA CA 92704 SUB OF MICROSEMI CORP TK2598 MAXIM – ASIC 120 SAN GABRIEL DRV SUNNYVALE, CA 94086 8–6 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 135 OVEN ASSEMBLY:VITS100/200,28MHZ 80009 119432800 A1A1 119–4328–01 B010196 B020322 OVEN ASSEMBLY:VITS100/200,28MHZ 80009 119432801 A1A1 119–4328–02 B020323 OVEN ASSEMBLY:VITS100/200,28MHZ 80009 119432802 *ATTACHED PARTS* 131–0157–00 TERMINAL,PIN:0.25 L X 0.04 OD,BRS,SLDR PL 05276 013–100–1000–47 *END ATTACHED PARTS* 8–7 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 136 UET1H100MPH A1C51 281–0775–01 CAP,FXD,CER:MCL;0.1UF,20%,50V,Z5U,0.170 04222 SA105E104MAA A1C52 283–0633–00 CAP,FXD,MICA DI:77PF,1%,100V TK0891 RDM15ED770F03 A1C53 290–0990–00 CAP,FXD,ALUM:10UF,20%,50V,8X11.5 55680 UET1H100MPH A1C54 281–0775–01 CAP,FXD,CER:MCL;0.1UF,20%,50V,Z5U,0.170 04222 SA105E104MAA A1C55 281–0775–01 CAP,FXD,CER:MCL;0.1UF,20%,50V,Z5U,0.170 04222 SA105E104MAA A1C56 281–0775–01 CAP,FXD,CER:MCL;0.1UF,20%,50V,Z5U,0.170 04222 SA105E104MAA 8–8 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 137 55680 UPL1J331MHH A1C103 290–1302–00 B010230 CAP,FXD,ALUM:1000UF,20%,35V,12.5 X 30MM(0.492 X 1.180) 0H1N5 CEEFM1V102M7 A1C104 290–0943–00 CAP,FXD,ALUM:47UF,+50–20%,25V,6 X 11MM 0H1N5 CEUSM1E470–Q A1C105 290–0943–00 CAP,FXD,ALUM:47UF,+50–20%,25V,6 X 11MM 0H1N5 CEUSM1E470–Q A1C106 283–0177–00 CAP,FXD,CER DI:1UF,+80–20%,25V 04222 SR303E105ZAA 8–9 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 138 A1C150 281–0775–01 CAP,FXD,CER:MCL;0.1UF,20%,50V,Z5U,0.170 04222 SA105E104MAA A1C152 281–0775–01 CAP,FXD,CER:MCL;0.1UF,20%,50V,Z5U,0.170 04222 SA105E104MAA A1C153 281–0775–01 CAP,FXD,CER:MCL;0.1UF,20%,50V,Z5U,0.170 04222 SA105E104MAA A1C154 281–0775–01 CAP,FXD,CER:MCL;0.1UF,20%,50V,Z5U,0.170 04222 SA105E104MAA A1C155 281–0775–01 B010100 B010229 CAP,FXD,CER:MCL;0.1UF,20%,50V,Z5U,0.170 04222 SA105E104MAA A1C156 281–0775–01 CAP,FXD,CER:MCL;0.1UF,20%,50V,Z5U,0.170 04222 SA105E104MAA 8–10 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 139 A1CR9 152–0601–01 DIODE,RECT:ULTRA FAST;150V,25NS,35A IFSM 04713 MUR115RL A1CR10 152–0601–01 DIODE,RECT:ULTRA FAST;150V,25NS,35A IFSM 04713 MUR115RL A1CR11 152–0601–01 DIODE,RECT:ULTRA FAST;150V,25NS,35A IFSM 04713 MUR115RL A1CR12 152–0497–00 DIODE,RECT:BRIDGE,600V,1.5A,1.05VF 14936 2KBP06M A1CR13 152–0582–00 DIODE,RECT:SCHTKY;20V,3A,.475VF,80A IFSM 04713 1N5820 8–11 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 140 CONN,HDR:PCB;MALE,STR,2 X 17,0.1 CTR,0.365D 53387 2534–6002UB A1J5 131–0608–00 CONN,TERMINAL:PRESSFIT/PCB;MALE,STR,0.025SQ,0.248 22526 48283–018 MLG X 0.137 TAIL,50 GOLD,PHZ BRZ,W/FERRULE (QUANTITY 3) A1J6 131–0608–00 CONN,TERMINAL:PRESSFIT/PCB;MALE,STR,0.025SQ,0.248 22526 48283–018 MLG X 0.137 TAIL,50 GOLD,PHZ BRZ,W/FERRULE (QUANTITY 3) 8–12 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 141 MLG X 0.137 TAIL,50 GOLD,PHZ BRZ,W/FERRULE (QUANTITY 3) A1J33 131–0608–00 CONN,TERMINAL:PRESSFIT/PCB;MALE,STR,0.025SQ,0.248 22526 48283–018 MLG X 0.137 TAIL,50 GOLD,PHZ BRZ,W/FERRULE (QUANTITY 3) A1J50 131–0608–00 CONN,TERMINAL:PRESSFIT/PCB;MALE,STR,0.025SQ,0.248 22526 48283–018 MLG X 0.137 TAIL,50 GOLD,PHZ BRZ,W/FERRULE (QUANTITY 2) 8–13 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 142 00779 1–850100–O A1P9 131–0993–05 BUS,CONDUCTOR:SHUNT ASSEMBLY,GREEN 00779 850100–5 A1P12 131–0993–02 BUS,CONDUCTOR:SHUNT ASSEMBLY,RED 00779 1–850100–O A1P13 131–0993–02 BUS,CONDUCTOR:SHUNT ASSEMBLY,RED 00779 1–850100–O A1P17 131–0993–02 BUS,CONDUCTOR:SHUNT ASSEMBLY,RED 00779 1–850100–O A1P18 131–0993–02 BUS,CONDUCTOR:SHUNT ASSEMBLY,RED 00779 1–850100–O 8–14 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 143 151–0188–00 XSTR,SIG:BIPOLAR,PNP;40V,200MA,250MHZ,AMPL 04713 2N3906 A1Q180 151–0190–00 XSTR,SIG:BIPOLAR,NPN;40V,200MA,300MHZ,AMPL 04713 2N3904 A1R3 307–0539–00 RES NTWK,FXD,FI:(7)510 OHM,10%,1W 11236 750–81–R510 OHM A1R4 307–0539–00 RES NTWK,FXD,FI:(7)510 OHM,10%,1W 11236 750–81–R510 OHM A1R5 307–0650–00 RES NTWK,FXD,FI:9,2.7K OHM,5%,0.150W 11236 750–101–R2.7K 8–15 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 144 91637 CCF501G20000F A1R49 322–3222–00 RES,FXD:METAL FILM;2K OHM,1%,0.2W,TC=100 PPM 91637 CCF501G20000F A1R50 322–3223–00 RES,FXD,FILM:2.05K OHM,1%,0.2W,TC=T0MI,SMALL BODY 91637 CCF501G20500F A1R51 322–3235–00 RES,FXD:METAL FILM;2.74K OHM,1%,0.2W,TC=100 91637 CCF501G27400F A1R52 322–3193–00 RES,FXD:METAL FILM;1K OHM,1%,0.2W,TC=100 PPM 91637 CCF501G10000F 8–16 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 145 A1R103 322–3085–07 RES,FXD:METAL FILM;75 OHM,0.1%,0.2W,TC=25 PPM 91637 CCF502–C75ROOB A1R104 322–3114–00 RES,FXD:METAL FILM;150 OHM,1%,0.2W,TC=100 PPM 91637 CCF50–2–G1500F A1R105 322–3114–00 RES,FXD:METAL FILM;150 OHM,1%,0.2W,TC=100 PPM 91637 CCF50–2–G1500F A1R106 322–3193–00 RES,FXD:METAL FILM;1K OHM,1%,0.2W,TC=100 PPM 91637 CCF501G10000F 8–17 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 146 11502 GF–3 OR GS–3 10 A1R155 308–0555–00 RES,FXD,WW:5 OHM,5%,3W 00213 1200S–5.0–5 A1R156 308–0555–00 RES,FXD,WW:5 OHM,5%,3W 00213 1200S–5.0–5 A1R157 301–0274–00 B010100 B010229 RES,FXD,FILM:270K OHM,5%,0.5W 19701 5053CX270K0J A1R157 303–0274–00 B010230 RES,FXD,CMPSN:270K OHM,5%,1W 80009 303027400 8–18 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 147 RES,FXD,FILM:511 OHM,1%,0.2W,TC=T0MI,SMALL BODY 91637 CCF501G511R0F A1R223 322–3165–00 RES,FXD,FILM:511 OHM,1%,0.2W,TC=T0MI,SMALL BODY 91637 CCF501G511R0F A1R224 322–3165–00 RES,FXD,FILM:511 OHM,1%,0.2W,TC=T0MI,SMALL BODY 91637 CCF501G511R0F A1R225 322–3165–00 RES,FXD,FILM:511 OHM,1%,0.2W,TC=T0MI,SMALL BODY 91637 CCF501G511R0F A1R226 322–3165–00 RES,FXD,FILM:511 OHM,1%,0.2W,TC=T0MI,SMALL BODY 91637 CCF501G511R0F 8–19 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 148 CB,0.015 X 0.032 BRASS,W/RED NYLON COLLAR A1TP5 214–4085–00 TERM,TEST POINT:0.070 ID,0.220 H,0.063 DIAP 26364 104–01–02 CB,0.015 X 0.032 BRASS,W/RED NYLON COLLAR A1TP6 214–4085–00 TERM,TEST POINT:0.070 ID,0.220 H,0.063 DIAP 26364 104–01–02 CB,0.015 X 0.032 BRASS,W/RED NYLON COLLAR 8–20 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 149 IC,MEMORY:CMOS,EPROM;8K X 8 80009 160861301 (OPTION 1M ONLY) A1U5 160–8613–02 B020295 IC,MEMORY:CMOS,PROM;32K X 8,40NS,REGISTERED 80009 160861302 (OPTION 1M ONLY) A1U5 160–9756–00 B020288 IC,MEMORY:CMOS,PROM;32K X 8,40NS,REGISTERED 80009 160975600 (OPTION 02 ONLY) *MOUNTING PARTS* 8–21 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 150 (OPTION 1J ONLY) A1U13 160–8870–01 B010137 B010229 IC,MEMORY:CMOS,EPROM;32K X 8 WITH 3 STATE OUT 80009 160887001 (OPTION 1J ONLY) A1U13 160–8606–01 B010230 B020294 IC,MEMORY:CMOS,EPROM;64K X 16 80009 160860601 (STANDARD AND OPTION 1J ONLY) 8–22 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 151 IC,DIGITAL:CMOS,PLD;EEPLD,16V8,25NS,90MA 80009 160975400 (OPTION 02 ONLY) *MOUNTING PARTS* 136–0752–00 SKT,PL–IN ELEK:MICROCIRCUIT,20 DIP 09922 DILB20P–108 *END MOUNTING PARTS* A1U18 156–0470–02 IC,DIGITAL:LSTTL,MUX/ENCODER 01295 SN74LS251N A1U19 156–0470–02 IC,DIGITAL:LSTTL,MUX/ENCODER 01295 SN74LS251N A1U20 156–0470–02 IC,DIGITAL:LSTTL,MUX/ENCODER 01295 SN74LS251N 8–23 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 152 (OPTION 02 ONLY) A1U28 160–8616–02 B020301 IC,DIGITAL:CMOS,PLD;OPT,DUAL CLOCK 80009 160861602 (OPTION 02 ONLY) *MOUNTING PARTS* 136–0925–00 SOCKET,DIP:PCB;24 POS,2 X 12,0.1 X 0.3 CTR,0.196 H X 0.130 00779 2–641932–3 TAIL,BECU,TIN,ACCOM 0.008–0.015THRU 0.014 X 0.022 LEADS 8–24 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 153 *END MOUNTING PARTS* A1U36 156–1754–02 IC,DIGITAL:ALSTTL,BFR/DRVR;OCTALNONINV, HIGH DRV 01295 SN74ALS244A–1N A1U37 156–1754–02 IC,DIGITAL:ALSTTL,BFR/DRVR;OCTALNONINV, HIGH DRV 01295 SN74ALS244A–1N A1U38 156–1998–00 IC,DIGITAL:ALSTTL,FLIP FLOP;OCTAL D–TYPE, W/CLEAR 01295 SN74ALS273N *MOUNTING PARTS* 136–0752–00 SKT,PL–IN ELEK:MICROCIRCUIT,20 DIP 09922 DILB20P–108 8–25 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 154 155–0316–02 IC,ASIC:BIPOLAR,12 BIT D/A CONV;FULL CUSTOM,M460 TK2598 155031602 *MOUNTING PARTS* 136–0871–00 SOCKET,PLCC:PCB;68 POS,0.05 CTR,0.360H X0.125 00779 3–821574–1 TAIL,TIN,0.1 CTRPCB,0.060 SHOULDER HEIGHT *END MOUNTING PARTS* A1U67 156–4150–00 IC,LINEAR:BIPOLAR,AMPLIFIER;100MHZ,CURRENT 64762 EL2090CN FEEDBACK,SAMPLE/HOLD,VIDEO DC RESTORATION 8–26 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 155 69–11–8805–1674 *END ATTACHED PARTS* A1U86 156–2063–00 B010230 IC,DGTL:ALSTTL,FLIP FLOP;OCTAL NONINV D–TYPE, 3–STATE 01295 SN74ALS374AN (STANDARD AND OPTION 1J ONLY) A1U87 160–9406–00 B010230 IC,DIGITAL:CMOS,PLD;OTP,22V10,25NS,33.3MHZ,90MA 80009 160940600 (STANDARD AND OPTION 1J ONLY) *MOUNTING PARTS* 8–27 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 156 50139 BCK1210FT A1A1R9 321–5012–00 B010196 RES,FXD:THICK FILM;332 OHM,1%,0.125W,TC=100 50139 BCK3320FT A1A1RT11 307–0181–01 RES,THERMAL:20K OHM,5%,AT 60 DEG C 91637 C771 A1A1Y1 ––––––––––– XTAL,UNIT,QTZ:28.636360 MHZ,5 PPM,PARALLEL,CL 32PF,2 MW DRV LEVEL;HC–43U (REPLACEABLE AT A1A1 ONLY) 8–28 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 157 Diagrams www.valuetronics.com...
Page 158 www.valuetronics.com...
Page 159 Number Subassembly Number (if used) Figure 9–1: A1 VITS Inserter Board (671–2132–05 & Up) Chassis mounted components have no Assembly Number prefix see end of Replaceable Electrical Parts List. STATIC SENSITIVE DEVICES 9–1 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 160 R13H C137 CR16 R13I C139 CR17 C140 CR18 C141 CR19 C142 CR20 C143 CR21 C144 CR22 C145 CR24 C146 CR25 C147 CR26 C148 CR27 C149 CR28 C150 CR29 C152 C153 C154 C156 9–2 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 161 R151 R226 U76B R152 R227 R153 R228 R154 R229 U81A R155 R230 R156 R231 R157 R500 R158 R501 R159 R502 R160 R503 R161 R504 R162 R506 R163 R164 R165 R166 R167 R168 9–3 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 162 Subassembly Number (if used) Chassis mounted components have no Assembly Number prefix see end of Replaceable Electrical Parts List. STATIC SENSITIVE DEVICES Figure 9–2: A1A1 Oven Board Table 9–2: A1A1 Component Locator 9–4 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 163 NOT USED ON VITS 100 VIRSPRES U71B-9 SEE PARTS LIST FOR EARLIER VALUES CLKA AND SERIAL NUMBER RANGES. (VIRSAMP) U48A-1 E/ES 671-2132-05 & UP P/O A1 INSERTER BOARD REV MAY 1993 TEST SIGNAL MEMORY 9–5 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 164 9–6 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 165 2 3 4 5 6 7 8 9 74LS251 FPTS2 (2K/4K) 2 3 4 5 6 7 8 9 74LS251 FPTS3 (2K/4K) P/O A1 INSERTER BOARD REV NOV 1992 TEST SIGNAL SELECT 9–7 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 166 9–8 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 167 FPSTANDBY R13C U87-3 POWER 2.7k 671-2132-05 & UP C161 (RESYNC) (RESYNC) 0.1uF NOTE: NOT USED ON VITS 100 P/O A1 INSERTER BOARD REV NOV 1992 H&V COUNTERS,DECODERS, SOURCE IDENTIFICATION & BYPASS CONTROLS 9–9 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 168 9–10 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 169 R179F R179G C136 2.7k 2.7k 2.7k 0.1uF R179A 2.7k UNUSED PULL-UP RESISTORS (INT) NOTE: SEE PARTS LIST FOR EARLER VALUES AND SERIAL NUMBER RANGES P/O A1 INSERTER BOARD REV OCT 1992 GENLOCK 9–11 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 170 9–12 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 171 U41-13 RSLINE +10V +12V 671-2132-00 C150 C158 C157 C159 C507 0.1uF 0.1uF 0.1uF 0.1uF 33pF 33pF -10V NOTE: SEE PARTS LIST FOR EARLER VALUES AND SERIAL NUMBER RANGES P/O A1 INSERTER BOARD 9–13 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 172 9–14 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 173 U56A 47.5k 1458 -12V 1.0k 2.4V -12V 0.1uF 200.0k 1 OHM 47.5k -12V NOTE: SEE PARTS LIST FOR EARLER VALUES P/O A1 INSERTER BOARD AND SERIAL NUMBER RANGES REV NOV 1992 CLOCKS 9–15 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 174 9–16 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 175 671-2132-00 - 04 0.1uF 0.1uF 1.21k -12V NOTE: NOT USED ON VITS 100 NOTE: SEE PARTS LIST FOR EARLER VALUES AND SERIAL NUMBER RANGES P/O A1 INSERTER BOARD REV SEP 1995 ANALOG OUTPUT 9–17 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 176 9–18 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 177 C112 .068uF R158 0.1uF 2.74k TL431C R169 1.50k R170 OUTPUT VOLTAGE ADJUST NOTE: SEE PARTS LIST FOR EARLER VALUES AND SERIAL NUMBER RANGES P/O A1 INSERTER BOARD REV MAY 1993 POWER SUPPLY 9–19 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 178 9–20 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 179 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF -12V -12V -12V NOTE: SEE PARTS LIST FOR EARLER VALUES AND SERIAL NUMBER RANGES P/O A1 INSERTER BOARD REV NOV 1992 REGULATOR & DECOUPLING CAPS 9–21 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 180 9–22 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 181 Number Number Subassembly Figure 9–3: A1 VITS Inserter Board (671-2132-00 –04) Number (if used) Chassis mounted components have no Assembly Number prefix see end of Replaceable Electrical Parts List. STATIC SENSITIVE DEVICES 9–23 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 182 Table 9–3: A1 Component Locator 671–2132–00 through -04 9–24 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 183 9–25 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 184 9–26 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 185 9–27 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 186 9–28 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 187 Replaceable Mechanical Parts www.valuetronics.com...
Page 188 www.valuetronics.com...
Page 189 Replaceable Mechanical Parts This section contains a list of the replaceable mechanical components for the VITS100 NTSC VITS Inserter. Use this list to identify and order replacement parts. Parts Ordering Information Replacement parts are available through your local Tektronix field office or representative.
Page 190 Items in this section are referenced by figure and index numbers to the exploded view illustrations that follow. Tektronix Part Number Use this part number when ordering replacement parts from Tektronix. 3 and 4 Serial Number Column three indicates the serial number at which the part was first effective. Column four indicates the serial number at which the part was discontinued.
Page 191 20460 SW AVERY CT TUALATIN, OR 97062 TK1947 NORTHWEST ETCH TECHNOLOGY 2601 S HOOD ST TACOMA, WA 98411–0610 PO BOX 110610 TK2562 MOLDING SPECIALITIES INC 3000 LEWIS & CLARK HWY VANCOUVER, WA 98661–2999 10–3 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 192 TK1828 ORDER BY DESCR 214–4585–00 B020323 HEAT SINK,ELEC:1.55 X 0.96,YELLOW CHROMATE CVRSN 80009 214–4585–00 COATING –27 211–0513–00 SCREW,MACHINE:6–32 X 0.625,PNH,STL CD PL TK0435 ORDER BY DESCR –28 200–3266–01 CAP,HEAT SINK:PLASTIC 0JR05 200–3266–01 10–4 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 193 Tektronix Part Serial No. Serial No. Mfr. Index Number Effective Discont’d Name & Description Code Mfr. Part Number Number STANDARD ACCESSORIES 161–0216–00 CABLE ASSY,PWR:3,18 AWG,2.5M L,BLACK 80126 C7120–25M–BL 070–8333–00 MANUAL,TECH:VITS100 80009 070–8333–00 10–5 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 194 Replaceable Mechanical Parts Figure 10–1: Exploded view 10–6 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 195 Appendix www.valuetronics.com...
Page 196 www.valuetronics.com...
Page 197 Appendix A: Options This Appendix describes the available VITS100 NTSC VITS Inserter options. Operation of the instrument is relatively straightforward; the following options expand its utility to situations other than typical broadcast applications: H Option 1J has three signals that differ slightly from those in the standard signal set.
Page 198 Appendix A: Options Option 1J The VITS100 NTSC VITS Inserter Option 1J contains the following three signals that are modifications of those in the standard VITS inserter: H Red Field, with modified luminance and chrominance amplitudes H FCC Color Bars without setup...
Page 199 4.7 9.8 15.7 19.3 25.8 36.1 44.4 51.5 57.4 63.56ms Figure A–3: Option 1J Multipulse signal Factory Configuration The factory-programmed selection of VITS signals is also unique in Option 1J; see Table A–2. A–3 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 200 Passed lines are not deleted or inserted by the VITS 100 NTSC VITS Inserter Option 1M The VITS100 NTSC VITS Inserter with Option 1M is designed to genlock to a PAL-M color television signal. This option permits use of the VITS inserter in conjuction with a VM700A Video Measurement Set.
Page 201 Option 1M VITS signals are the same as those available with the standard VITS100 NTSC VITS Inserter. Table A–3 lists the factory configuration (through DIP switches S1–S4) of the VITS100 NTSC VITS Inserter, Op- tion 1M. Table A–3: Option 1M Factory Programmed VITS Insertions...
Page 202 Appendix A: Options Option 2 VITS100 NTSC VITS Inserter Option 2 generates Cable Sweep and Cable Multiburst signals to accommodate cable system measurements. These signals replace the VIRS and Auto VIRS selections of the standard VITS inserter and are selected with the same DIP switch settings (see Table A–4). See VITS Selection, beginning on page 2–5, for more information about signal selection.
Page 203 30.6 38.0 45.4 52.8 60.2 12.7 17.2 24.6 32.0 39.4 46.8 54.2 61.98ms Figure A–5: Cable Multiburst 4.2 MHz 714.28mV 357.14mV –40 0 4.7 9.8 61.6556ms 11.0 60.5 Figure A–6: Cable Sweep A–7 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 204 Cable Multiburst signal Cable Sweep signal FCC Composite signal Sin X/X 1 and 2 Pass* 1 and 2 Pass* Passed lines are not deleted or inserted by the VITS 100 NTSC VITS Inserter A–8 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 205 Index www.valuetronics.com...
Page 206 www.valuetronics.com...
Page 207 Unlocked LED, 2–1 Inspection, incoming, 5–1 Installation, 1–5 VIRS, auto, 1–2, 2–4 VITS available, 2–3 Jumpers, 7–4 cable-specific, A–6 DIP switch settings, 2–7 factory defaults, 1–4 PAL-M, A–4 MONITOR output, 2–3 selection, 2–5 Index–1 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...
Page 208 Index waveform diagrams, 3–12 Index–2 VITS100 NTSC VITS Inserter Instruction Manual www.valuetronics.com...

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