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Leader Electronics Corp. LT 416 Instruction Manual

Ntsc/pal/secam pattern generator
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LT 416
NTSC/PAL/SECAM
PATTERN GENERATOR
INSTRUCTION MANUAL

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  • Page 1 LT 416 NTSC/PAL/SECAM PATTERN GENERATOR INSTRUCTION MANUAL...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS GENERAL SAFETY SUMMARY ···························································································· | 1. INTRODUCTION ··············································································································1-1 Scope of Warranty ······························································································1-2 Operating Precautions ·······················································································1-2 1.2.1 Line Voltage and Fuse ························································································1-2 1.2.2 Reverse Voltage···································································································1-2 1.2.3 Installation ···········································································································1-2 1.2.4 Mechanical Shock ·······························································································1-3 1.2.5 Calibration ···········································································································1-3 1.2.6 Routine Maintenance ··························································································1-3 2.
  • Page 3 Component Video Signal····················································································4-3 4.5.1 Y, B-Y, R-Y Connectors ⑲ ··················································································4-3 4.5.2 R, G, B, C.SYNC Connectors ⑳ ·········································································4-3 Y/C Separation Signal·························································································4-4 4.6.1 Y/C OUTPUT Connector ·····················································································4-4 Audio Signal ········································································································4-4 4.7.1 AUDIO OUTPUT Connector ················································································4-4 RF Signal ·············································································································4-4 4.8.1 OUTPUT Connector ⑱························································································4-4 4.8.2 Level knob ···········································································································4-4 Pattern Settings···································································································4-4 4.10...

  • Page 4: General Safety Summary

    GENERAL SAFETY SUMMARY ■ To Avoid Personal Injury It is recommended that only qualified personnel with technical knowledge use this instrument only after reading and fully understanding all functions of the instrument described this instruction manual. This instrument is not designed and manufactured for consumers. If you do not have enough knowledge on electricity, to avoid personal injury and prevent damage to this product, please be sure to use this product only under the su- pervision of an engineer who has sufficient knowledge about electronics.
  • Page 5 GENERAL SAFETY SUMMARY Review the following safety precautions to avoid operator's injury and loss of life and prevent damage and deterioration to this instrument. To avoid potential hazards, use this product as specified. WARNING ■ Warnings on the Cases and Panels of the Instrument Operator should not remove any cases or panel for any reasons.
  • Page 6 GENERAL SAFETY SUMMARY WARNING ■ Warning on Installation Environments About the Operating Temperature Range ● Operate the instrument between the temperature range of 0 to 40 °C. Operating the instrument at higher temperatures could cause a fire hazard. Rapid changes of temperatures from cold to warm can create internal moisture or condensation and could damage the instrument.
  • Page 7 GENERAL SAFETY SUMMARY CAUTION ■ Caution on Input/Output Terminals Input Terminals are rated with a maximum input. Do not supply an input over the specified rating in the standard section of the instruction manual. Also, do not supply external power to Output terminal, this could cause the instrument to malfunction. Please conform to the above warnings and cautions for safe operation.

  • Page 8: Introduction

    1. INTRODUCTION Thank you for purchasing Leader’s measuring instruments. Please read this instruction manual carefully to ensure correct and safe operation. If you have any difficulties or questions on how to use the instrument after you have read this manual, please feel free to contact your local LEADER agent. Scope of Warranty This LEADER instrument has been manufactured under the strictest quality control guidelines.

  • Page 9: Operating Precautions

    CAUTION Operating Precautions WARNING 1.2.1 Line Voltage and Fuse Confirm that the power line voltage is correct before connecting the power cord. The voltage range and fuse rating are indicated on the rear panel. When replacing the fuse, turn the power switch off and disconnect the power cord from the mains.

  • Page 10: Mechanical Shock

    1.2.4 Mechanical Shock Please be careful not to expose the instrument to other forms of severe mechanical shock as this product contains shock sensitive precise parts. 1.2.5 Calibration When calibration or service is required, contact your local LEADER agent. 1.2.6 Routine Maintenance When cleaning the instrument, do not use such solvents as thinner or benzol which will remove paint or damage the plastic surface.

  • Page 11: Specifications

    2. SPECIFICATIONS GENERAL Model LT 416 is a precision test-signal source which provides four color systems of NTSC, PAL, SECAM, and NTSC-4.43 for testing and adjusting all kind of video products such as TV, VTR etc. In addition of a composite signal output, the generator provides a Y/C output and a component signal outputs (except SECAM) of Y/B-Y/R-Y and GBR so that it is suitable to a production line for video products of component system.

  • Page 12: Specifications

    Specifications 2.3.1 Composite Video Signal Output (1) Color System: NTSC, PAL, SECAM, NTSC-4.43 (2) Scanning Method NTSC/ NTSC-4.43: 525-line interlace scanning PAL/ SECAM: 625-line interlace scanning (Progressive scanning can be performed for all color systems when the CIRCLE or CONVERGENCE pattern is selected.) (3) Field frequency NTSC: 59.94 Hz ±30 ppm...

  • Page 13: Sync Signal

    (10) Setup Level: NTSC: 0 % (“7.5 %” model optionally available) PAL/SECAM/NTSC 4.43 : 0 % (11) Output connector Variable output: Fixed output: RCA jack ..... 1 (12) Number of Outputs: 1 each ....1 2.3.2 Sync Signal Sync Signal Amplitude NTSC/ NTSC-4.43: 286 mVp-p ±14 mVp-p...

  • Page 14: Test Patterns

    2.3.3 Test Patterns Color Bar: 100/ 0/ 75/ 0 Full-field Color Bar Demodulator Pattern (Not output when the SECAM is selected) PAL: Combination of normal and reversed B-Y and R-Y for each line NTSC: Combination of normal and reversed B-Y, R-Y, I, and Q for each line line n: R-Y, -(R-Y), B-Y, -(B-Y), R-Y, -(R-Y), B-Y,...

  • Page 15: Y/ C Separation Output

    Number of Horizontal Lines NTSC/ NTSC-4.43: PAL/ SECAM: Horizontal Line Width: 2 lines Number of Dots NTSC/ NTSC-4.43: 16 x 13 PAL/ SECAM: 18 x 14 Dot Pulse Vertical Width: 2 lines Color Burst: On/ off selectable Interlace/ Progressive: Selectable (*) Notes on pattern specifications Signal amplitude (100 %) is as follows.

  • Page 16: R, G, B Output

    1 (75 Ω, BNC) Number of Output: Since a double sideband modulation system is used for the RF signal of the LT 416. such parameters as P/S ratio do not conform to the official standards. Therefore, video noise or audio noise may appear on a TV monitor, etc. when the RF...

  • Page 17: Sound Output

    2.3.8 Sound Output Output Signal: 1 kHz ±100 Hz, sine wave 1.2 Vp-p (into 600 Ω) Amplitude: 600 Ω Output Impedance: Number of Output: 1 (RCA jack) 2.3.9 General Specifications Environmental Conditions Operating Temperature: 0 to 40 °C ≤ 90 % RH (without condensation) Operating Humidity: Spec-Guaranteed Temperature: 10 to 30 °C...

  • Page 18: Panel Description

    3. PANEL DESCRIPTION Please refer to each item number described on Figure 3-1 and 3-2 for the described instruction after 4.OPERATING PROCEDURE. Front Panel !3 !4 !6 !7 !0 !1 Figure 3-1 Front Panel q POWER switch Push this switch in to apply power. Release this switch for turning power off. w Pattern keys Select the pattern.
  • Page 19 LED goes off. In the SECAM system, this key is used to turn on or off the reference burst. y COUNTRY/ CHANNEL u CHANNEL/ COUNTRY display i SELECT keys This block is used to control the RF frequency. Press the COUNTRY/ CHANNEL y when selecting the TV channel number and country number.

  • Page 20: Rear Panel

    Rear Panel This section describes the rear panel according to Figure 3-2. Figure 3-2 Rear Panel !9 Y, B-Y, R-Y connectors Output component video signal with fixed level. Luminance signal (Y) and color difference signal (B-Y, R-Y) are output. Output impedance of each connector is 75 Ω. @0 R, G, B, C.SYNC connectors Output RGB video signal and composite sync signal with fixed level.

  • Page 21: Operating Procedure

    4. OPERATING PROCEDURE Turning Power On 4.1.1 Connecting Power Plug Check the mains voltage and current capacity for correct before connecting the instrument. 4.1.2 Turning Power On Always confirm that the instrument is not in a volatile or flammable environment before turning the power on.

  • Page 22: Termination

    4.2.2 Termination When the equipment under test is connected, the cable end should be terminated with appropriate impedance for correct output level. Table 4-2 shows the output impedance and termination impedance for each connector. Table 4-2 Output Connector Signal Ternination 600 Ω...

  • Page 23: Composite Video Signal

    Composite Video Signal 4.4.1 VIDEO OUTPUT connector (1) Preset Output Level When the OUTPUT LEVEL control !4 is set to PRESET position, the output level between sync tip and 100 % white is 1 Vp-p (into 75 Ω). !4 LEVEL Figure 4-1 Preset position (2) Variable Output Level The output level can be set from 0 V (MIN, immediately before the detent...

  • Page 24: Y/C Separation Signal

    Y/C Separation Signal Y/C OUTPUT Connector !2 4.6.1 The Y/C OUTPUT connector !2 is used to connect an unit equipped with S connector. Output level is fixed; same as the composite signal. Audio Signal AUDIO OUTPUT Connector !0 4.7.1 The AUDIO OUTPUT connector !0 outputs audio signal. The signal is 1 kHz, 1.2 Vp-p (into 600 Ω) fixed.

  • Page 25: Rf Channel Settings

    e R,G,B LED off LED on LED off Figure 4-3 Key combinations to select green (3) Interlace/Progressive Scanning Selection The SCAN key r is used to select the scanning system when the CIRCLE or CONVERGENCE pattern is selected by using the Pattern key w. The key operation is toggled.

  • Page 26: Setting Procedure

    (2) Setting Procedure • Use the COUNTRY/CHANNEL key y, COUNTRY/CHANNEL display u, and SELECT key i for setting RF system. • The COUNTRY/CHANNEL key y operation is toggled. The COUNTRY LED lights in country number setting mode; the CHANNEL LED lights in channel number setting mode.

  • Page 27: Selecting Channel

    4.10.3 Selecting Channel (1) About Channel Number The channel number is displayed in two digits. Alphanumeric characters are used for the channel numbers of some channel plan. This generator converts alphanumeric channel number into numeric ones for display convenience. Section "5.3, "Channel Plan Table" shows the correspondence between both types of numbers.

  • Page 28: Rf Setting Example

    4.10.6 RF Setting Example This section describes an example to set the FRANCE VHF FB channel. (1) See Section 5.2, "Broadcast System/Channel Plan by Country/Region" and find "France. "According to the table, the SECAM system and country number "25" will be obtained. Finland CCIR VHF(B) CCIR UHF(G)

  • Page 29: Battery Backup

    4.11 Battery Backup 4.11.1 Backup Capability This generator retains the setting conditions (e. g., system, pattern settings,country number,TV channel number) even when the power is turned off. Data is retained about 14 days with a fully charged backup battery (ambient temperature: ≤...

  • Page 30: Broadcast System

    5. CHANNEL PLAN Broadcast System Table 5-1 lists the major parameters of the broadcast system. Table 5-1 Major parameters of broadcasting system System D, K Channel Bandwidth (MHz) Sound Subcarrier Frequency (MHz) 4. 5 5. 5 5. 5 5. 5 6.
  • Page 31 Color Countries/Areas System  System   Co. No.  System Co. No. Brunei CCIR VHF(B) Bulgaria SECAM OIRT VHF(D) CCIR UHF(K) Burkina Faso SECAM FOT VHF CCIR UHF(K) Burundi SECAM FOT VHF CCIR UHF(K) Cambodia CCIR VHF(B) Cameroun CCIR VHF(B) CCIR UHF(G) Canada NTSC USA VHF USA UHF...
  • Page 32 Color Countries/Areas System System Co. No. System Co. No. Gernany CCIR VHF(B) CCIR UHF(G) Ghana CCIR VHF(B) Gibraltar CCIR VHF(B) CCIR UHF(G) Greenland NTSC USA VHF Grenada Guam NTSC USA VHF Guatemala NTSC USA VHF USA UHF Guinea SECAM FOT VHF CCIR UHF(K) Guyana Guyana-Bissau...
  • Page 33 Color Countries/Areas System System Co. No. System Co. No. Libya CCIR VHF(B) CCIR UHF(G) Luxembourg CCIR VHF(B) CCIR UHF(G) Macao Area CCIR UHF(I) Macedonia CCIR VHF(B) CCIR UHF(G) Madagascar SECAM FOT VHF CCIR UHF(K) Malawi SOUTH AFRICA VHF(I) CCIR UHF(I) Malaysia CCIR VHF(B) CCIR UHF(G)
  • Page 34 Color Countries/Areas System System Co. No. System Co. No. Poland SECAM OIRT VHF(D) CCIR UHF(K) Portugal CCIR VHF(B) CCIR UHF(G) Puerto Rico NTSC USA VHF USA UHF Qatar CCIR VHF(B) CCIR UHF(G) Romania CCIR VHF(D) CCIR UHF(K) Rwanda SECAM FOT VHF CCIR UHF(K) Sao Tome &...
  • Page 35 Color Countries/Areas System System Co. No. System Co. No. United Arab Emirates CCIR VHF(B) NTSC USA VHF USA UHF Venezuela NTSC USA VHF Viet Nam CCIR VHF(D) CCIR UHF(K) Virginia Is. (USA) NTSC USA VHF Western Samoa NTSC USA VHF Yemen CCIR VHF(B) CCIR UHF(I)

  • Page 36: Channel Plan Table

    Channel Plan Table 5.3.1 How to use Channel Plan Table Color System Channel Plan Countries/Areas Number NTSC USA [VHF] Countries/Areas Number RF System ch. No. LED display fv (MHz) fs (MHz) 55.25 59.75 61.25 65.75 67.25 71.75 77.25 81.75 83.25 87.75 175.25 179.75...

  • Page 37: Channel Plan Table

    5.3.2 Channel Plan Table NTSC USA [VHF] NTSC USA [UHF] (cont'd) Countries/Areas Number Countries/Areas Number RF System RF System LED display fv (MHz) fs (MHz) LED display fv (MHz) fs (MHz) ch. No. ch. No. 55.25 59.75 615.25 619.75 61.25 65.75 621.25 625.75...
  • Page 38 NTSC JAPAN [VHF] Countries/Areas Number RF System LED display fv (MHz) fs (MHz) ch. No. 91.25 95.75 97.25 101.75 103.25 107.75 171.25 175.75 177.25 181.75 183.25 187.75 189.25 193.75 193.25 197.75 199.25 203.75 205.25 209.75 211.25 215.75 217.25 221.75 Table 5-4 NTSC JAPAN [UHF] NTSC JAPAN [UHF] (cont'd)
  • Page 39 NTSC TAIWAN [VHF] Countries/Areas Number RF System LED display fv (MHz) fs (MHz) ch. No. 175.25 179.75 181.25 185.75 187.25 191.75 193.25 197.75 199.25 203.75 205.25 209.75 Table 5-6 PAL CCIR(B)[VHF] PAL OIRT(D)[VHF] Countries/Areas Number Countries/Areas Number RF System RF System LED display fv (MHz) fs (MHz)
  • Page 40 PAL CCIR(G)[VHF] PAL CCIR(H)[UHF] Countries/Areas Number Countries/Areas Number RF System RF System ch. No. LED display fv (MHz) fs (MHz) LED display fv (MHz) fs (MHz) ch. No. 471.25 476.75 471.25 476.75 479.25 484.75 479.25 484.75 487.25 492.75 487.25 492.75 495.25 500.75 495.25...
  • Page 41 PAL CCIR(I)[UHF] PAL CCIR(K)[UHF] Countries/Areas Number Countries/Areas Number RF System RF System LED display fv (MHz) fs (MHz) LED display fv (MHz) fs (MHz) ch. No. ch. No. 471.25 477.25 471.25 477.75 479.25 485.25 479.25 485.75 487.25 493.25 487.25 493.75 495.25 501.25 495.25...
  • Page 42 PAL INDONESIA [VHF] PAL ANGOLA [VHF] Countries/Areas Number Countries/Areas Number RF System RF System LED display fv (MHz) fs (MHz) LED display fv (MHz) fs (MHz) ch. No. ch. No. *44.25 *49.75 *43.75 *49.25 55.25 60.75 52.25 58.25 62.25 67.75 60.25 66.25 175.25...
  • Page 43 PAL AUSTRALIA [VHF] PAL AUSTRALIA [UHF] Countries/Areas Number Countries/Areas Number RF System RF System LED display fv (MHz) fs (MHz) LED display fv (MHz) fs (MHz) ch. No. ch. No. 46.25 51.75 527.25 532.75 57.25 62.75 534.25 539.75 64.25 69.75 541.25 546.75 548.25...
  • Page 44 PAL CHINA [VHF] PAL CHINA [UHF] Countries/Areas Number Countries/Areas Number RF System RF System ch. No. LED display fv (MHz) fs (MHz) ch. No. LED display fv (MHz) fs (MHz) 49.75 56.25 471.25 477.75 57.75 64.25 479.25 486.75 487.25 493.75 65.75 72.25 77.25...
  • Page 45 SECAM CCIR(B)[VHF] SECAM CCIR(G)[UHF] Countries/Areas Number Countries/Areas Number RF System RF System LED display fv (MHz) fs (MHz) LED display fv (MHz) fs (MHz) ch. No. ch. No. 48.25 53.75 471.25 476.75 55.25 60.75 479.25 484.75 62.25 67.75 487.25 492.75 495.25 500.75 175.25...
  • Page 46 SECAM OIRT(D)[VHF] SECAM CCIR(K)[UHF] Countries/Areas Number Countries/Areas Number RF System RF System LED display fv (MHz) fs (MHz) LED display fv (MHz) fs (MHz) ch. No. ch. No. 49.75 56.25 471.25 477.75 479.25 485.75 59.25 65.75 77.25 83.75 487.25 493.75 85.25 91.75 495.25...
  • Page 47 SECAM FRANCE [VHF] SECAM FRANCE [UHF] Countries/Areas Number Countries/Areas Number RF System RF System LED display fv (MHz) fs (MHz) LED display fv (MHz) fs (MHz) ch. No. ch. No. 47.75 54.25 471.25 477.75 479.25 486.75 55.75 62.25 60.5 487.25 493.75 63.75 70.25...
  • Page 48 SECAM IVORY COAST [VHF] SECAM FOT [VHF] Countries/Areas Number Countries/Areas Number RF System RF System LED display fv (MHz) fs (MHz) LED display fv (MHz) fs (MHz) ch. No. ch. No. *43.25 175.25 181.75 *49.75 183.25 189.75 52.25 58.75 60.25 66.75 191.25 197.75...

  • Page 49: Maintenance

    6. MAINTENANCE The LT 416 is designed to provide stable performance when used properly.If the instrument requires adjustment or calibration after extended use,be sure to contact your nearest LEADER agent. 5-20...

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