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Q.2 a. Explain the working of Television broadcasting system with a neat block diagram. (8)

Answer:

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b. Explain horizontal and vertical blanking. (8) Answer:

Q.3 a. Explain, with neat diagrams, magnetic deflection used in television picture tubes.

(10)

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Answer:

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b. Write the precautions to be taken while handling the picture tubes. (6) Answer:

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Q.4 a. Explain interlaced scanning pattern used TV systems. (10) Answer:

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b. Explain “Flicker” in Television systems. (6) Answer:

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Q.5 a. Explain “colour addition” used in colour TV system. (8) Answer:

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b. Explain (i) Hue (ii) Saturation (iii) Chrominance (iv) Luminance (8) Answer:

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Q.6 a. Explain the types of colour video signals. (10) Answer:

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b. Explain the “Colour Sync Burst”. (6) Answer:

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Q.7 a. Explain the tests for streaking. (6) Answer:

b. Explain (i) aspect Ratio (ii) Contrast Range with respect to EIA Test Pattern. (4)

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Answer:

c. Explain the tests for Ringing. (6) Answer:

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Q.8 Draw a neat block diagram of Black and White TV receiver and explain the function

of each block briefly. (16) Answer:

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Q.9 Write short notes on any TWO of the following: (16)

(i) Safety aspects in TV receivers (ii) Raster Distortions (iii) Projection TV systems

Answer:

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TEXT BOOK

I. Basic Television and Video Systems, Bernard Grob and Charles E. Herndon, Sixth Edition, 1999, McGraw Hill International Edition