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Tektronix TSG 120 Instruction Manual

Yc / ntsc signal generator
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A l l t e s t I n s t r u me n t s , I n c .
5 0 0 C e n t r a l A v e .
F a r mi n g d a l e , N J 0 7 7 2 7
P : ( 7 3 2 ) 9 1 9 - 3 3 3 9
F : ( 7 3 2 ) 9 1 9 - 3 3 3 2
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s s a l e s @ a l l t e s t . n e t
T h e t e s t & me a s u r e me n t
e q u i p me n t y o u n e e d a t
t h e p r i c e y o u w a n t .
A l l t e s t c a r r i e s t h e w o r l d ' s l a r g e s t s e l e c t i o n o f
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t
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C C a l l ( 7 3 2 ) 9 1 9 - 3 3 3 9 o r e ma i l s a l e s @a l l t e s t . n e t .

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  • Page 1 T h e t e s t & me a s u r e me n t e q u i p me n t y o u n e e d a t t h e p r i c e y o u w a n t . A l l t e s t I n s t r u me n t s , I n c .
  • Page 2 Instruction Manual TSG 120 YC / NTSC Signal Generator S/N B020765 and Above 070-8003-02...
  • Page 3 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 4 WARRANTY Tektronix 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, 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.
  • Page 5 For product support outside of North America, contact your local Tektronix distributor or sales office. Service Contact your local Tektronix distributor or sales office. Or visit Support our web site for a listing of worldwide service locations. http://www.tek.com For other...
  • Page 6 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 8 ......... . . 5–2 Replaceable Electrical Parts Diagrams Replaceable Mechanical Parts TSG 120 YC/NTSC Signal Generator...

  • Page 9: Table Of Contents

    ....2–29 Figure 2–31: C channel NTC7 combination signal ....2–29 TSG 120 YC/NTSC Signal Generator...
  • Page 10 ....4–9 Figure 5–1: TSG 120 block diagram ......
  • Page 11 ....3–3 Table 4–1: List of adjustment procedures ..... . 4–2 TSG 120 YC/NTSC Signal Generator...
  • Page 12 Do Not Operate in Wet/Damp Conditions. Do Not Operate in an Explosive Atmosphere. Keep Product Surfaces Clean and Dry. Provide Proper Ventilation. Refer to the manual’s installation instructions for details on installing the product so it has proper ventilation. TSG 120 YC/NTSC Signal Generator...
  • Page 13 CAUTION indicates a hazard to property including the product. Symbols on the Product. The following symbols may appear on the product: WARNING Protective Ground CAUTION Double High Voltage (Earth) Terminal Refer to Manual Insulated TSG 120 YC/NTSC Signal Generator...
  • Page 14 Getting Started...

  • Page 16: Table 1-1: Standard Instrument Test Signal Summary

    After S/N B010287, this output includes a Field Reference pulse on field 1 line 10. Option 02 Option 02 adds a special signal for the cable TV industry. Table 1–2 lists the test signals supplied by the TSG 120 Option 02. 1–1 TSG 120 YC/NTSC Signal Generator...

  • Page 17: Table 1-2: Option 02 Test Signal Summary

    R126. To disable the ID click, move jumper J12 from position 1-2 to position 2-3. Physical Description The TSG 120 YC/NTSC Signal Generator consists of four circuit boards and three cables in a rectangular sheet-aluminum chassis with a removeable top cover. The major internal components are: H A main board that performs most of the generators functions.

  • Page 18: Figure 1-1: Standard Front Panel And Controls

    Pressing a test-signal button lights the top-row LED and the LED in the button. Successive presses of the same button toggles between the selections above that button (for example, between Color Bars and Convergence). 1–3 TSG 120 YC/NTSC Signal Generator...

  • Page 19: Figure 1-3: Rear Panel And Connections

    8. 1 kHz audio tone output in phase with Channel 1. 9. Electrical mains input, factory set for 115 VAC (to change the power supply operating voltage, see Configuring the Power Supply in Section 5). 1–4 TSG 120 YC/NTSC Signal Generator...

  • Page 20: Table 1-3: Jumper Position And Function Summary

    Test jumper. Power supply circuit testing (removing this jumper disables the +5 V supply) J108 1–2 Field 1 Line 10 pulse enabled (black burst output) (Option 01 only) 2–3 Field 1 Line 10 pulse disabled 1–5 TSG 120 YC/NTSC Signal Generator...
  • Page 21 Getting Started 1–6 TSG 120 YC/NTSC Signal Generator...
  • Page 22 Specifications...

  • Page 24: Table 2-1: General Ntsc/Yc Test Signal Characteristics

    600 ns 100 ns 4.7 µs 0.1 µs Line Sync Duration 50% amplitude point 4.7 µs 0.1 µs Vertical Serration Duration 50% amplitude point 2.3 µs 0.1 µs Equalizing Pulse Duration 50% amplitude point 2–1 TSG 120 YC/NTSC Signal Generator...

  • Page 25: Table 2-2: Ntsc/Yc Test Signals

    Green Field See Figure 2–5 Luminance Pedestal 344.45 mV Chrominance Amplitude 585.28 mV p-p Chrominance Phase 240.7 Blue Field See Figure 2–6 Luminance Pedestal 110.06 mV Chrominance Amplitude 443.76 mV p-p Chrominance Phase 347.1 2–2 TSG 120 YC/NTSC Signal Generator...
  • Page 26 Packet Rise Time 500 kHz 140 ns typical (sine-squared shaped pack- ets) Other Packets 400 ns typical (sine-squared shaped pack- ets) Matrix Convergence, Color Bars, Reverse Bars, See Figure 2–17 Convergence, IWQB, and convergence 2–3 TSG 120 YC/NTSC Signal Generator...

  • Page 27: Table 2-3: Ntsc/Yc Test Signals Option 02

    182–221 50% Gray 222–262 Ghost Canceling Check Pulse & Horizontal Blanking Check Signal Cable Matrix Line Signal 21–61 Cable Multiburst 62–101 Cable Sweep 102–141 Cable Markers 142–181 (Sin x)/x 182–221 FCC Composite 222–262 5-Step 2–4 TSG 120 YC/NTSC Signal Generator...
  • Page 28 258.7 mV (40 IRE) Burst Frequencies 500 kHz, 1.0 MHz, 2.0 MHz, 3.0 MHz, 3.58 MHz, 4.2 MHz Packet Rise Time 500 kHz 140 ns typical (sine-squared shaped packets) Other Packets 400 ns typical (sine-squared shaped packets) 2–5 TSG 120 YC/NTSC Signal Generator...

  • Page 29: Figure 2-1: Color Bars Component Of Smpte Bars

    Specifications Figure 2–1: Color bars component of SMPTE bars 2–6 TSG 120 YC/NTSC Signal Generator...

  • Page 30: Figure 2-2: Reverse Blue Bars Component Of Smpte Bars

    Specifications Figure 2–2: Reverse blue bars component of SMPTE bars 2–7 TSG 120 YC/NTSC Signal Generator...

  • Page 31: Figure 2-3: Iyqb Component Of Smpte Bars

    Specifications Figure 2–3: IYQB component of SMPTE bars 2–8 TSG 120 YC/NTSC Signal Generator...

  • Page 32: Figure 2-4: Red Field

    Specifications Figure 2–4: Red field 2–9 TSG 120 YC/NTSC Signal Generator...

  • Page 33: Figure 2-5: Green Field

    Specifications Figure 2–5: Green field 2–10 TSG 120 YC/NTSC Signal Generator...

  • Page 34: Figure 2-6: Blue Field

    Specifications Figure 2–6: Blue field 2–11 TSG 120 YC/NTSC Signal Generator...

  • Page 35: Figure 2-7: 50% Flat Field

    Specifications Figure 2–7: 50% flat field 2–12 TSG 120 YC/NTSC Signal Generator...

  • Page 36: Figure 2-8: 100% Flat Field

    Specifications Figure 2–8: 100% flat field 2–13 TSG 120 YC/NTSC Signal Generator...

  • Page 37: Figure 2-9: 0% Flat Field

    Specifications Figure 2–9: 0% flat field 2–14 TSG 120 YC/NTSC Signal Generator...

  • Page 38: Figure 2-10: Chroma Noise

    Specifications Figure 2–10: Chroma noise 2–15 TSG 120 YC/NTSC Signal Generator...

  • Page 39: Figure 2-11: Chroma Response And Markers

    Specifications Figure 2–11: Chroma response and markers 2–16 TSG 120 YC/NTSC Signal Generator...

  • Page 40: Figure 2-12: Convergence

    Specifications Figure 2–12: Convergence 2–17 TSG 120 YC/NTSC Signal Generator...

  • Page 41: Figure 2-13: 5 Step

    Specifications Figure 2–13: 5 step 2–18 TSG 120 YC/NTSC Signal Generator...

  • Page 42: Figure 2-14: Mod Ramp

    Specifications Figure 2–14: Mod ramp 2–19 TSG 120 YC/NTSC Signal Generator...

  • Page 43: Figure 2-15: Pulse And Bar

    Specifications Figure 2–15: Pulse and bar 2–20 TSG 120 YC/NTSC Signal Generator...

  • Page 44: Figure 2-16: Multiburst

    Specifications Figure 2–16: Multiburst 2–21 TSG 120 YC/NTSC Signal Generator...

  • Page 45: Figure 2-17: Matrix

    Specifications Line Muliburst Chroma Sweep 50 IRE Flat Field Chroma Noise 75% Color Bar NTC7 Composite Figure 2–17: Matrix 2–22 TSG 120 YC/NTSC Signal Generator...

  • Page 46: Figure 2-18: Y Channel 75% Color Bars

    Specifications Option 02 Signals Figure 2–18: Y channel 75% color bars Figure 2–19: C channel 75% color bars 2–23 TSG 120 YC/NTSC Signal Generator...

  • Page 47: Figure 2-20: Y Channel Cable Multiburst Signal

    Specifications Figure 2–20: Y channel cable multiburst signal Figure 2–21: C channel for the following signals: cable multiburst, cable sweep, (Sin x)/x, and ghost canceling 2–24 TSG 120 YC/NTSC Signal Generator...

  • Page 48: Figure 2-22: Y Channel Cable Sweep Markers

    Specifications Figure 2–22: Y channel cable sweep markers Figure 2–23: Y channel cable sweep signal 2–25 TSG 120 YC/NTSC Signal Generator...

  • Page 49: Figure 2-24: Y Channel Fcc Test Signal

    Specifications Figure 2–24: Y channel FCC test signal Figure 2–25: C channel FCC test signal 2–26 TSG 120 YC/NTSC Signal Generator...

  • Page 50: Figure 2-26: Y Channel Of The Sin(X)/X Test Signal

    Specifications Figure 2–26: Y channel of the (Sin x)/x test signal Figure 2–27: Y channel for ghost canceling 2–27 TSG 120 YC/NTSC Signal Generator...

  • Page 51: Figure 2-28: Y Channel Ntc7 Test Signal

    Specifications Figure 2–28: Y channel NTC7 test signal Figure 2–29: C channel NTC7 test signal 2–28 TSG 120 YC/NTSC Signal Generator...

  • Page 52: Figure 2-30: Y Channel Ntc7 Combination Signal

    Specifications Figure 2–30: Y channel NTC7 Combination signal Figure 2–31: C channel NTC7 Combination signal 2–29 TSG 120 YC/NTSC Signal Generator...

  • Page 53: Table 2-4: Audio Tone Characteristics

    90 – 130 VAC 240 VAC 180 – 250 VAC Fuse Data 115 V Setting .5 A Med Blow 230 V Setting .25 A Med Blow Power Consumption, Typical 15 Watts Line Frequency 48 – 62 Hz 2–30 TSG 120 YC/NTSC Signal Generator...

  • Page 54: Table 2-6: Physical Characteristics

    Class I (as defined in IEC 1010–1, Annex H) – grounded product Overvoltage Category Overvoltage Category II (as defined in IEC 1010–1, Annex J). Pollution Degree Pollution Degree 2 (as defined in IEC 1010–1). Note – Rated for indoor use only. 2–31 TSG 120 YC/NTSC Signal Generator...

  • Page 55: Table 2-8: Certifications And Compliances

    Class 1 (as defined in IEC 1010-1, Annex H) – grounded product Overvoltage Category Overvoltage Category II (as defined in IEC 1010-1, Annex J) Pollution Degree Pollution Degree 2 (as defined in IEC 1010-1). Note: Rated for indoor use only. 2–32 TSG 120 YC/NTSC Signal Generator...
  • Page 56 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 Performance Verification...
  • Page 60 Comparator, 7A26 Dual Trace Amplifier, and 7B53A Dual Time Base. Use with P6106 10x probes (part number 010-610-03). 4. Frequency Counter. Must be accurate to within 2.5 Hz out of 5 MHz. Example: Tektronix DC 501, Option 01: plugs into a TM 503 Power Mainframe. 3–1...

  • Page 61: Table 3-1: Ntsc Test Signal Output

    5. Distortion Analyzer. Must test power output over range of 0 – 8 dBm and be capable detecting THD of 0.01% or less. Example: Tektronix AA501. 6. Audio Amplifier. 600 W impedance. 7. BNC Coax Cables. 75 W impedance. Example: Tektronix part number 012-0074-00. 8. End-Line Termination. 75 W termination equipped with a BNC connector.

  • Page 62: Table 3-2: Y And C Test Signal Output

    Table 3–3: Audio output and subcarrier frequency Procedure Limits Total Harmonic Distortion < 0.5% Subcarrier Oscillator Frequency 14.31818 MHz 28 Hz, 5 to 35 C. Typical is 14.31818 MHz 15 Hz at room temperature. 3–3 TSG 120 YC/NTSC Signal Generator...
  • Page 63 Confirm that any DC-Restorer feature of the monitor or oscilloscope is OFF. d. Toggle the display between DC coupled and ground reference. e. Check that the blanking level is 0 V 50 mV. Figure 3–1: Blanking level verification test setup (video measurement set) 3–4 TSG 120 YC/NTSC Signal Generator...
  • Page 64 If necessary, adjust the measurement set or VAC to match the top of the lower burst to the bottom of the upper burst. b. Check for a burst amplitude of 40 IRE 0.8 IRE/285.7 mV 5.7 mV. 3–5 TSG 120 YC/NTSC Signal Generator...
  • Page 65 Set the test equipment to match the top of the lower 5-Step waveform with the blanking level of the upper waveform. b. Check that the 5-Step amplitude is 100 IRE 1.0 IRE/714.3 mV 7.14 mV. 3–6 TSG 120 YC/NTSC Signal Generator...
  • Page 66 10. Chrominance-Luminance Delay a. Select the Pulse and Bar signal. Option 02. Select the NTC7 Combination (in NTC7 Matrix) signal. b. Set the waveform monitor to view the bottom of the 12.5T modulated pulse. 3–7 TSG 120 YC/NTSC Signal Generator...
  • Page 67 100 IRE. c. Check with time cursors or graticule - that rise and fall times between 10% and 90% are 140 ns 20 ns. 3–8 TSG 120 YC/NTSC Signal Generator...
  • Page 68 Option 02. Select the NTC7 Combination (in NTC7 Matrix) signal. c. Set the measurement set or vectorscope to measure differential phase using the double trace method, if available. d. Check for differential phase of no greater than 0.3 . 3–9 TSG 120 YC/NTSC Signal Generator...
  • Page 69 19. Luminance Blanking Level Output Test Procedures a. Connect the equipment as shown in Figure 3–5 (and select channel B1 at the front panel of the measurement set) or Figure 3–6. b. Select the 5-Step signal. 3–10 TSG 120 YC/NTSC Signal Generator...
  • Page 70 Performance Verification Figure 3–5: Blanking level or amplitude test setup (video measurement set) Figure 3–6: Blanking level or amplitude test setup (oscilloscope) c. Confirm that any DC-Restorer feature of the monitor or oscilloscope is OFF. 3–11 TSG 120 YC/NTSC Signal Generator...
  • Page 71 VAC, match the top of the lower 5-Step waveform with the blanking level of the upper waveform. d. Check that the 5-Step amplitude is 100 IRE 1.0 IRE/714.3 mV 7.14 mV. e. Note the luminance amplitude for use in step 32 of this procedure. 3–12 TSG 120 YC/NTSC Signal Generator...
  • Page 72 Set the equipment to display the bottom of the 2T pulse at line rate. c. Check with voltage cursors or graticule - that after-pulse ringing is no greater than 1%/1.0 IRE/7.14 mV peak. 3–13 TSG 120 YC/NTSC Signal Generator...
  • Page 73 Select the Chroma Response signal. Option 02. Select the NTC7 Combination (in NTC7 Matrix) signal. d. Switch the display between DC coupled and ground reference. e. Check that the blanking level is 0 V 50 mV. 3–14 TSG 120 YC/NTSC Signal Generator...
  • Page 74 Figure 3–9. b. Set the test equipment to external reference or sync. c. Select the Chroma Response signal. Option 02. Select the NTC7 Combination (in NTC7 Matrix) signal. 3–15 TSG 120 YC/NTSC Signal Generator...
  • Page 75 Adjust the test equipment to match the top of the lower waveform with the bottom of the upper. c. Check that the chrominance amplitude is 100 IRE 1.0 IREp-p /714.3 mV 7.14 mVp-p. 3–16 TSG 120 YC/NTSC Signal Generator...
  • Page 76 Disable the channel one ID click by moving jumper J12 to pins 2 and 3. Procedures b. Connect the equipment as in Figure 3–11, placing a 600 Ohm resistor (to represent the load of your system) across the analyzer’s + and - terminals. 3–17 TSG 120 YC/NTSC Signal Generator...
  • Page 77 Check that THD on channel one is no more than 0.5%. e. Return jumper J12 to pins 1 and 2. Move the cable from audio channel 1 to audio channel 2. g. Check that THD on channel two is no more than 0.5%. 3–18 TSG 120 YC/NTSC Signal Generator...
  • Page 78 Figure 3–12: Free-running frequency test setup b. Set the frequency counter to count at a 4x-subcarrier rate. c. Check that the measured oscillator frequency is within 15 Hz of 14.31818 MHz at normal operating temperature. 3–19 TSG 120 YC/NTSC Signal Generator...
  • Page 79 Performance Verification 3–20 TSG 120 YC/NTSC Signal Generator...
  • Page 80 Adjustment Procedure...
  • Page 82 Adjustment Procedure This section consists of checklists and detailed procedures to use in adjusting performance parameters for the TSG 120 YC/NTSC Signal Generator. This procedure is intended to be done in sequence. If only selected parameters are to be checked or adjusted, always begin at a step with a setup illustration.

  • Page 83: Table 4-1: List Of Adjustment Procedures

    Adjustment Procedure 4. Frequency Counter. Must be accurate to within 2.5 Hz out of 5 MHz. Example: Tektronix DC 501, Option 01: plugs into a TM 503 Power Mainframe. 5. Distortion Analyzer. Must test power output over range of 0 – 8 dBm and be capable of detecting THD of 0.01% or less.
  • Page 84 C19 and C21 Y Signal (Sin X)/X Compensation NTSC Chrominance Frequency Re- L8, L9, L10, L11 and L12 sponse C Signal (Sin X)/X Compensation NTSC Chrominance-to-Luminance L8 & L9 and L14 & L15 Delay 4–3 TSG 120 YC/NTSC Signal Generator...
  • Page 85 Adjust R123 to obtain the desired dB output for Audio 1. (Factory setting is + 8 dBm.) d. Return jumper J12 to the 1-2 position. e. Move the audio cable from Audio channel 1 to Audio channel 2. 4–4 TSG 120 YC/NTSC Signal Generator...
  • Page 86 Fine-adjust the oscillator frequency to bring 4 F to 14.31818 MHz e. Reinstall the plastic cap. NOTE. Steps 4 – 11 are interactive. Repeat them, in sequence, until the best possible results are obtained. 4–5 TSG 120 YC/NTSC Signal Generator...
  • Page 87 40 IRE/285.7 mV above (or below) the original. e. Adjust R18 to match the sync tip of the upper waveform to the blanking level of the lower within 0.8 IRE/5.7 mV. 4–6 TSG 120 YC/NTSC Signal Generator...
  • Page 88 Adjustment Procedure Figure 4–4: NTSC sync amplitude test setup (video measurement set) Figure 4–5: NTSC sync amplitude test setup (vac and waveform monitor) 4–7 TSG 120 YC/NTSC Signal Generator...
  • Page 89 Select the Chroma Noise signal. Option 02. Select the NTC7 Combination (in NTC7 Matrix) signal. c. Adjust R60 to match the top of the lower waveform to the bottom of the upper within 1.0 IRE/7.14 mV. 4–8 TSG 120 YC/NTSC Signal Generator...
  • Page 90 Set the test equipment to view the signal at line rate, then select ground reference. Center the trace on the display graticule. e. Switch back to DC coupled and adjust R20 for a blanking level of 0 V 50 mV. 4–9 TSG 120 YC/NTSC Signal Generator...
  • Page 91 2%/1.2 IRE/8.6 mV.) 13. NTSC Chrominance to Luminance Gain (Sin X)/X Compensation a. Adjust C19 as needed, using the Multiburst signal from step 12, to make the 3.58 MHz packet amplitude match the 500 kHz packet. 4–10 TSG 120 YC/NTSC Signal Generator...
  • Page 92 Use one of the NTSC outputs as an external reference or sync. b. Adjust C47 to make the chrominance line signal as flat as possible. This may necessitate readjustment of R60 to return the signal to 60 IRE 0.6 IRE/428.6 mV 4.3 mV. 4–11 TSG 120 YC/NTSC Signal Generator...
  • Page 93 Check with voltage cursors or graticule - that the envelope at the bottom of the 12.5T pulse is no more than 1.2 IRE (8.6 mV e. Repeat steps 12 through 17 for the best possible results. 4–12 TSG 120 YC/NTSC Signal Generator...
  • Page 94 Maintenance...
  • Page 96 Selecting the Power Supply Mains Voltage The TSG 120 YC/NTSC Signal Generator is shipped from the factory configured for 115 VAC, 60 Hz operation. To configure the power supply for 230 VAC operation, follow this procedure.
  • Page 97 Audio tone V Timing 1 KHz PROM Ch 2 Center Audio Tone – Audio Tone Ch Y Clk Ch 1 – Channel ID Switch Ch C Clk Black Burst Figure 5–1: TSG 120 Block Diagram 5–2 TSG 120 YC/NTSC Signal Generator...
  • Page 98 Replaceable Electrical Parts...
  • Page 100 Replaceable Electrical Parts This section contains a list of the electrical components for the TSG 120 YC/NTSC Signal Generator. 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 101 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 102 BOURNS INC TRIMPOT DIVISION RIVERSIDE, CA 92507–2114 1200 COLUMBIA AVE 33095 SPECTRUM CONTROL INC 8061 AVONIA RD FAIRVIEW, PA 16415 34335 ADVANCED MICRO DEVICES INC ONE AMD PLACE SUNNYVALE, CA 94088–3453 PO BOX 3453 6–3 TSG 120 YC/NTSC Signal Generator...
  • Page 103 AVNET ELECTRONICS MARKETING BEAVERTON, OR 97005 9750 SW NIMBUS AVE TK2058 TDK CORPORATION OF AMERICA 1600 FEEHANVILLE DRIVE MOUNT PROSPECT, IL 60056 TK6138 VANTIS CORPORATION 920 DEGUIGNE DRIVE SUNNYVALE, CA 94088 PO BOX 3755 6–4 TSG 120 YC/NTSC Signal Generator...
  • Page 104 PUSH BUTTON:LIGHTED CAP,INSERT ASSY 80009 366–0682–01 *END ATTACHED PARTS* A1S204 260–2675–00 SWITCH,PUSH:SPST,MOM,NO,150 GRM FRC,SEA 0UAU4 TL1240G–W/RED–DO LED,50MA,24VDC,100M OHM, W/GRN LED 20 MA MAX,TL124 *ATTACHED PARTS* 366–0682–01 PUSH BUTTON:LIGHTED CAP,INSERT ASSY 80009 366–0682–01 *END ATTACHED PARTS* 6–5 TSG 120 YC/NTSC Signal Generator...
  • Page 105 352–1012–00 HOLDER LED:BLACK ABS 80009 352–1012–00 *END MOUNTING PARTS* A1S221 150–1029–00 DIODE,OPTO:LED,GRN,565NM,1MCD AT 20MA 0AP78 SPG3431 *MOUNTING PARTS* 136–0252–07 SOCKET,PIN CONN:SINGLE,PCB,T/G,0.030 80009 136–0252–07 361–1593–00 SPACER,SLEEVE:PLASTIC,0.475 L 80009 131–1593–00 352–1012–00 HOLDER LED:BLACK ABS 80009 352–1012–00 6–6 TSG 120 YC/NTSC Signal Generator...
  • Page 106 62643 SME35VB101M8X11F LS,RADIAL,T&A A2C13 283–0177–05 CAP,FXD,CER,1UF,+80–20%,25V 20932 5030ES25RD105Z A2C15 283–0177–05 CAP,FXD,CER,1UF,+80–20%,25V 20932 5030ES25RD105Z A2C18 281–0797–00 CAP,FXD,CER:MLC,15PF,5%,100V,SAFETY ,0.100 X 12969 CGB150KFN 0.170,AXIAL,MI A2C19 281–0153–00 CAP,VAR,AIR,1.7–10PF,150V 187–0106–055 A2C20 283–0159–02 CAP,FXD,CER,18PF,5%,50V 18796 RPE121–911C0G181J A2C21 281–0153–00 CAP,VAR,AIR,1.7–10PF,150V 187–0106–055 6–7 TSG 120 YC/NTSC Signal Generator...
  • Page 107 CAP,FXD,CER:MCL,0.1UF,20%,50V,Z5U,0.170 X 04222 SA105E104MAA 0.100,AXIAL A2C61 283–0220–02 CAP,FXD,CER,0.01UF,20%,50V 18796 RPE121–911X7R103M A2C62 281–0775–01 CAP,FXD,CER:MCL,0.1UF,20%,50V,Z5U,0.170 X 04222 SA105E104MAA 0.100,AXIAL A2C63 281–0775–01 CAP,FXD,CER:MCL,0.1UF,20%,50V,Z5U,0.170 X 04222 SA105E104MAA 0.100,AXIAL A2C64 283–0177–05 CAP,FXD,CER,1UF,+80–20%,25V 20932 5030ES25RD105Z A2C65 283–0220–02 CAP,FXD,CER,DI:0.01UF,20%,50V 18796 RPE121–911X7R103M 6–8 TSG 120 YC/NTSC Signal Generator...
  • Page 108 CAP,FXD,CER,DI:7.5PF,+/–0.5PF,500V (Opt. 01 Only) 04222 MA107A7R5DAA A2C99 281–0153–00 CAP,VAR,AIR,1.7–10PF,150V (Opt. 01 Only) 187–0106–055 A2C100 283–0788–01 CAP,FXD,MICA,267PF,1%,500V (Opt. 01 Only) 09023 CDA15FD(267)F03 A2C101 283–0596–00 CAP,FXD,MICA,528PF,1%,300V (Opt. 01 Only) 09023 CD15FC(528)F03 A2C102 283–0688–01 CAP,FXD,MICA,464PF,1%,500V (Opt. 01 Only) 09023 CDA15FD(464)F03 6–9 TSG 120 YC/NTSC Signal Generator...
  • Page 109 281–0775–01 CAP,FXD,CER:MCL,0.1UF,20%,50V 04222 SA105E104MAA A2C167 281–0775–01 CAP,FXD,CER:MCL,0.1UF,20%,50V 04222 SA105E104MAA A2C168 281–0775–01 CAP,FXD,CER:MCL,0.1UF,20%,50V 04222 SA105E104MAA A2C169 281–0775–01 CAP,FXD,CER:MCL,0.1UF,20%,50V 04222 SA105E104MAA A2C170 281–0775–01 CAP,FXD,CER:MCL,0.1UF,20%,50V 04222 SA105E104MAA A2C172 281–0775–01 CAP,FXD,CER:MCL,0.1UF,20%,50V 04222 SA105E104MAA A2C173 281–0775–01 CAP,FXD,CER:MCL,0.1UF,20%,50V 04222 SA105E104MAA 6–10 TSG 120 YC/NTSC Signal Generator...
  • Page 110 SA105E104MAA A2C265 281–0775–01 CAP,FXD,CER:MCL,0.1UF,20%,50V 04222 SA105E104MAA A2C266 281–0775–01 CAP,FXD,CER:MCL,0.1UF,20%,50V 04222 SA105E104MAA A2C267 281–0775–01 CAP,FXD,CER:MCL,0.1UF,20%,50V 04222 SA105E104MAA A2CR1 152–0141–02 DIODE,SIG:ULTRA FAST,40V,150MA,4NS,2PF,1N4152 01295 1N4152R A2CR2 152–0141–02 DIODE,SIG:ULTRA FAST,40V,150MA,4NS,2PF,1N4152 01295 1N4152R A2CR4 152–0601–01 DIODE,RECT:ULTRAFAST,150V,25NS,35A 12969 UES1103 IFSM,MUR120,T&R 6–11 TSG 120 YC/NTSC Signal Generator...
  • Page 111 131–4566–00 BUS,CONDUCTOR:0 OHM,300 SPACING,SM BODY 91637 FRJ–50 MI,DUMMY RES A2J12 131–0608–00 CONN,TERMINAL:PRESSFIT/PCB,MALE,STR,0.025 22526 48283–018 SQ,0.248 MLG X 0.137 TAIL,50 GOLD,PHZ BRZ,W/FERRULE A2J30 131-0608-00 TERMINAL,PIN:0.365 L X 0.025 BRZ GLD PL 80009 131-0608-00 (QUANTITY 2) 6–12 TSG 120 YC/NTSC Signal Generator...
  • Page 112 190@2.6UH (Opt.01) A2L24 114–0366–00 INDUCTOR,VAR:2.40–2.70UH,30/46 AWG,Q MIN 54937 114–0366–00 190@2.6UH (Opt.01) A2L25 120–1889–00 TRANSFORMER,RF: 0JR03 120–1889–00 A2L26 108–1263–00 INDUCTOR,FXD:POWER,10UH,10%,I<2.1A,RDC<0.043 TK2058 TSL0707–100K1R9 OHM,Q>20,SRF>19MHZ,BOBBIN,RADIAL A2L27 108–1263–00 INDUCTOR,FXD:POWER,10UH,10%,I<2.1A,RDC<0.043 TK2058 TSL0707–100K1R9 OHM,Q>20,SRF>19MHZ,BOBBIN,RADIAL A2L28 108–0245–01 INDUCTOR,FXD:CUSTOM,POWER,3.9UH,10%,IDC<800 0JR03 108–0245–01 MA,RDC<0.264OHM,Q>35@7.9MHZ,SRF>61MHZ,AXIAL ,T&R 6–13 TSG 120 YC/NTSC Signal Generator...
  • Page 113 CRB20T68EFX1001 PPM,AXIAL A2R23 311–2230–00 RES,VAR,TRMR:CERMET,500OHM,20%,0.5W,0.197 TK2073 GF06UT2 501 M L20 SQ,TOP ADJUST,T&R A2R24 322–3277–00 RES,FXD,FILM:7.5K OHM,1%,0.2W,TC=T0 57668 CRB20 FXE 7K50 A2R29 322–3114–00 RES,FXD,FILM:150 OHM,1%,0.2W,TC=100 PPM 57668 CRB20–FX–150E–AXI A2R30 322–3114–00 RES,FXD,FILM:150 OHM,1%,0.2W,TC=100 PPM 57668 CRB20–FX–150E–AXI 6–14 TSG 120 YC/NTSC Signal Generator...
  • Page 114 56845 CCF50–1692F–R36 BODY A2R63 311–2235–00 RES,VAR,TRMR:CERMET,10K OHM,20%,0.5W,0.197 TK2073 GF06UT2 103 M L20 SQ,TOP ADJUST,T&R A2R64 322–3056–01 RES,FXD,FILM:37.4 OHM,0.5%,0.2W,TC=T0 TAPED & 57668 CRB20 DXE 37E4 REELED,SMALL BODY A2R65 322–3085–07 RES,FXD:METAL FILM,75 OHM,0.1%,0.2W,TC=25 91637 CCF502–C75ROOBT PPM,AXIAL 6–15 TSG 120 YC/NTSC Signal Generator...
  • Page 115 A2R91 322–3001–00 RES,FXD,FILM:10 OHM,1%,0.2W,TC=100 PPM(Opt01) 57668 CRB20T68EFX10R0 A2R92 322–3085–07 RES,FXD:METAL FILM,75 OHM,0.1%,0.2W,TC=25 91637 CCF502–C75ROOBT PPM,AXIAL (Opt01) A2R93 322–3056–00 RES,FXD,FILM:37.4 OHM,1%,0.2W,TC=T0,MI,(Opt01) 91637 CCF50–37R4F–R36 A2R94 322–3056–00 RES,FXD,FILM:37.4 OHM,1%,0.2W,TC=T0,MI,(Opt01) 91637 CCF50–37R4F–R36 A2R95 322–3133–00 RES,FXD,FILM:237 OHM,1%,0.2W,TC=T0,MI,(Opt01) 91637 CCF50–2370F–R36 6–16 TSG 120 YC/NTSC Signal Generator...
  • Page 116 322–3193–00 RES,FXD:METAL FILM,1K OHM,1%,0.2W,TC=100 PPM 57668 CRB20T68EFX1001 A2R125 322–3326–00 RES,FXD,FILM:24.3K OHM,1%,0.2W,TC–T0 91637 CCF50–2432F–R36 A2R126 311–0698–00 RES,VAR,NONWW:TRMR,1MEG OHM,0.5W CERMET 32997 3329H–L58–105 A2R127 322–3226–00 RES,FXD:METAL FILM,2.21K OHM,1%,0.2W,TC=100 57668 CRB20T68EFX2211 A2R129 322–3132–00 RES,FXD,FILM:232 OHM,1%,0.2W,TC=150 91637 CCF50–2320F–R36 PPM,MI,AXIAL 6–17 TSG 120 YC/NTSC Signal Generator...
  • Page 117 57668 CRB20T68EFX1001 PPM,AXIAL A2R214 322–3193–00 RES,FXD,METAL FILM:1KOHM,1%,0.2WTC–100 57668 CRB20FXE1K00 A2R235 322–3097–00 RES,FXD,METAL,FI:100OHM,1%,0.2WTC–100,PPM;AX- 57668 CRB20FXE100E A2T1 120–1885–01 TRANSFORMER,PWR: 80009 120–1885–01 A2TP1 214–4085–00 TERM ,TEST POINT:0.070 ID,0.220H,0.063 DIA 26364 104-01-02 PCB,0.015 X 0.032 BRS,W/RED NYLON COLLAR 6–18 TSG 120 YC/NTSC Signal Generator...
  • Page 118 671-2089-04 IC,MEMORY:CMOS,PROM 8K X 8,PRGM TK0198 160745201 156–3836–00,CY7C265–50 (OPT 01) A2U21 160–9659–00 671-2950-00 IC,MEMORY:CMOS,PROM,8K X 8,PRGM TK0198 160965900 156–3836–00,CY7C265–50 (OPT 02) A2U21 160–9659–00 671-3464-00 IC,MEMORY:CMOS,PROM,8K X 8,PRGM TK0198 160965900 156–3836–00,CY7C265–50 (OPT 01 & 02) 6–19 TSG 120 YC/NTSC Signal Generator...
  • Page 119 00779 3-821581-1 *END MOUNTING PARTS* A2U32 156–3019–00 IC,LINEAR:BIPOLAR,VOLTAGE 27014 LM385BZ–1.2 REFERENCE,1.235V,1.0%,150PPM,SHUNT,MICROPOW ER,LM385BZ–1.2,TO–92 A2U33 156–4170–00 IC,LINEAR:BIPOLAR,OP–AMP,CURRENT 13919 OPA603AP FEEDBACK,100MHZ,HIGH OUTPUT CURRENT,OPA603AP,DIP08.3 A2U34 156–6172–00 IC,CONVERTER:BIPOLAR,D/A,10 BIT,20MHZ,CURRENT 07933 TDC1041R3C1 OUTPUT,0.5LSBINL,TDC1041R3C1,PLCC28–1,TUBE *MOUNTING PARTS* 136-1005-00 SKT,PL-IN ELEK: 00779 3-821581-1 6–20 TSG 120 YC/NTSC Signal Generator...
  • Page 120 A2U108 156–0316–04 IC,DIGITAL:ECL,TRANSLATOR,QUAD ECL TO 04713 MC10125P TTL,10125,DIP16.3,TUBE A2U150 156–3373–00 IC,DIGITAL:ACMOS,FLIP FLOP,OCTAL 04713 MC74AC374N D–TYPE,3–STATE,74AC374,DIP30.3,TUBE A2U160 156–4104–00 IC,LINEAR:BIPOLAR,SW–REGULATOR 04713 UC3843N CONTROLLER,PWM,CURRENT MODE,SINGLE TOTEM POLE OUTPUT,UC3843 A2U161 160–9330–00 671-1862-04 IC,DIGITAL:CMOS,PLD,OTP,5064,64 TK0198 160933000 MACROCELL,30NS,PRGM 156–6229–00,5064–30,PLCC44,TUBE (STD) 6–21 TSG 120 YC/NTSC Signal Generator...
  • Page 121 CONN,RF JACK 00779 227677–1 A4J504 131–3378–00 CONN,RF JACK 00779 227677–1 A4J505 131–3378–00 CONN,RF JACK 00779 227677–1 A4J506 131–3378–00 CONN,RF JACK 00779 227677–1 A4W4 174–2337–01 CA ASSY,SP,ELEC:3.0L,10.28 AWG,1.6L,RIBBON 80009 174-2337-01 (CONNECTED FROM A2J4 TO A4J505 6–22 TSG 120 YC/NTSC Signal Generator...
  • Page 122 Diagrams/Circuit Board Illustrations...
  • Page 124 The schematic diagram and circuit board component location illustration have grids. A Other ANSI standards that are used in the preparation of diagrams by Tektronix, Inc. are: lookup table with the grid coordinates is provided for ease of locating the component.
  • Page 125 A4 BOTTOM A1 FRONT A3 TOP BNC BOARD BNC BOARD PANEL BOARD COMPONENT NUMBER EXAMPLE Component Number A23 A2 R1234 Assembly Circuit Number Number Subassembly Number (if used) Chassis mounted components have no Assembly Number prefix see end of Replaceable Electrical Parts List. STATIC SENSITIVE DEVICES...
  • Page 126 S206B S207B S208B S209B I0/CLK SGNL_LED1 SGNL_LED2 SGNL_LED3 SGNL_LED4 SGNL_LED5 SGNL_LED6 SGNL_LED7 SGNL_LED8 SEE ELECTRICAL PARTS LIST C250 C251 C252 C253 FOR EARLIER VALUES AND 0.1uF 0.1uF 0.1uF 0.1uF SERIAL NUMBER RANGES. A1 FRONT PANEL BOARD TSG 120 FRONT PANEL...
  • Page 128 2 3 4 5 6 7 8 9 C191 0.1UF U5-27 C254 C255 0.1UF 0.1UF R198 R199 CHRY_CLK 1.0K 10PF 2.7uH 5-25PF PART OF OPTION 01 SELECTABLE PART OPTION 01 ONLY P/O A2 MAIN BOARD TSG 120 DIGITAL GENERATION AND CLOCK...
  • Page 130 CH3AD3 (LH2) CH3AD4 CH3AD5 CH3AD6 SIGNAL SEGMENT CH3AD7 CH3AD8 ADDRESS MEMORY CH3AD9 CH3AD[0..9] CH3AD[0..9] TP10 (ABANKEN) E/ES,I CHY2_CLK U108-5 CHY2_CLK -5.2V SEE ELECTRICAL PARTS LIST FOR EARLIER VALUES AND SERIAL NUMBER RANGES. P/O A2 MAIN BOARD TSG 120 SIGNAL MEMORY...
  • Page 132 1.0UF 1.82K A-5V 16.9K 1.0K AGND OFFSET 9.0uH SEE ELECTRICAL PARTS LIST FOR EARLIER VALUES AND SINX/X SERIAL NUMBER RANGES. CORRECTION C257 -5.2V 0.1UF 7.5PF 2-10PF -10V A-5V A-5V P/O A2 MAIN BOARD Y AND C ANALOG OUTPUTS TSG 120...
  • Page 134 A+5V TP11 AGND AGND -5.2V A-5V A-5V SEE ELECTRICAL PARTS LIST FOR EARLIER VALUES AND SERIAL NUMBER RANGES. THIS SCHEMATIC IS FOR CIRCUITRY USED IN OPTION ONE ONLY. P/O A2 MAIN BOARD TSG 120 (OPTION 01) BLACK BURST CHANNEL OUTPUT...
  • Page 136 0.1UF C262 51PF R109 10.0K R103 U41B 10.0K 5532 R104 24.9 R150 4.99K A+5V A+5V TP12 AGND AGND SEE ELECTRICAL PARTS LIST FOR EARLIER VALUES AND -5.2V SERIAL NUMBER RANGES. A-5V A-5V P/O A2 MAIN BOARD TSG 120 AUDIO TONE...
  • Page 138 C172 C173 C174 C175 C176 C178 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF SEE ELECTRICAL PARTS LIST FOR EARLIER VALUES AND SERIAL NUMBER RANGES. P/O A2 MAIN BOARD TSG 120 POWER SUPPLY...
  • Page 140 J401 NTSC (REAR PANEL) A3 TOP BNC BOARD BOTTOM BNC CONNECTORS W505 J505 J503 MAIN BOARD (REAR PANEL) J504 NTSC2 OPTION ONLY (REAR PANEL) J501 NTSC2 NTSC2 (REAR PANEL) J506 J502 P606 A4 BOTTOM BNC BOARD TSG 120 BNC CONNECTORS...
  • Page 142 Replaceable Mechanical Parts...
  • Page 144 Replaceable Mechanical Parts This section contains a list of the replaceable mechanical components for the TSG 120 YC/NTSC Signal Generator. 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 145 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 146 MOORE ELECTRONICS INC 19500 SW 90TH CT TUALATIN, OR 97062 PO BOX 1030 TK1943 NEILSEN MANUFACTURING INC 3501 PORTLAND RD NE SALEM, OR 97303 TK2548 XEROX CORPORATION 14181 SW MILLIKAN WAY BEAVERTON, OR 97005 8–3 TSG 120 YC/NTSC Signal Generator...
  • Page 147 *MOUNTING PARTS* –13 220–0497–00 NUT,PLAIN,HEX:0.5–28 X 0.562 HEX,BRS CD PL 73743 ORDER BY DESCRIPTION –14 210–1039–00 WASHER,LOCK:0.521 ID,INT,0.025 THK,SST 0KB01 1224–02–00–0541C *END MOUNTING PARTS* –15 –––––––––– CIRCUIT BD ASSY:BOTTOM BNC (SEE A4 REPL) *MOUNTING PARTS* 8–4 TSG 120 YC/NTSC Signal Generator...
  • Page 148 COVER,BOTTOM:TSG120 0J7N4 200–3899–02 –23 337–3784–01 SHIELD,ELEC:TSG131A TK1295 337–3784–01 STANDARD ACCESSORIES –24 161–0066–00 CA ASSY,PWR:3,18 AWG,250V/10A,98 0B445 ECM–161–0066–00 INCH,STR,IEC320,RCPT X NEMA 5–15P,US,SAFTEY CONTROLLED 070–8003–02 MANUAL, TECH:USERS, TSG120 TK2548 070–8003–01 OPTION ACCESSORIES –––––––––– TVGF11A;RACK MOUNT KIT 8–5 TSG 120 YC/NTSC Signal Generator...
  • Page 149 Replaceable Mechanical Parts 8–6 TSG 120 YC/NTSC Signal Generator...
  • Page 150 TSG 120...

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