NP202 Wide Band TV Standard Converter             
                                                                                                1.NP202 operating instructions

  The NP202 wide band TV standard converter (belt time base adjuster/ frame synchronizer) is the television center machine room video signal processing unimportance device. It can validly eliminate the television image vibration, the distortion and the synchronized undesirable tendency, solving the channel sign, the captions superimposition rocks, beats, unstable, the intermittent phenomenon, to implement between the multi-channel different service pattern television signal strict synchronization (the field locking, the good synchronization, the color with Step). It may achieve the optimum condition after the NP202 processing later television image stability. To enhance the qualities of television programs’ manufacture and the effect of broadcasts are remarkable. Widely using in the television stations, retransmits the vehicle, broadcast room, the TV transmitting station, the audio and video manufacture core, the satellite earth station and closed circuit television system and so on.

   Input signal : Datum: PAL makes 1Vp-p (75Ω) the belt articulation

   Input video : NTSC, SECAM, PAL make 1Vp-p (75Ω),automatic diagnosis

  2.function

  Automatic gain control

  Input video 500mv~1.5v (75Ω)

  The good phase, the sub-carrier phase may adjust

  Time base adjustment frame synchronization function

  3.technical specification

  The compound video frequency enters, 9bit quantification, honeycomb filter 4: 2: 2 components codes  

  Bandwidth 5.5mHz -3dB

  DG < 2%

  DP < 2°

  Signal to noise ratio (weighting) >56dB

  10bit digital coding

   8bit storage

【Front panel】 （ the 1U standard case  posting membrane craft  liquid crystal displaying）

【Rear panel】

  Con check port: This computer’s interface is invalid;

     REF-IN datum input: Q9 socket 1KΩ  impedance;

    REF-OUT datum output: The Q9 socket, go for the datum input link;

    IN video input: Q9 socket 75Ωimpedance, NTSC SECAM the PAL three kind of service patterns enter;

    OUT1 video output 1: The belt power failure goes nonstop to, Q9 socket 75Ω impedance;

    OUT2 video output 2: Q9 socket 75Ω impedance;

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