| TV ENGINEERING |
| PAPER NO. 2 |
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| PUT ON: May, 2K3 |
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EC-402 TV ENGINEERING (B.Tech 8th Semester, 2122) Time : 3 Hours Maximum Marks : 60 NOTE:- This paper consist of Three Sections. Section A is compulsory. Do any Four questions from Section B and any two questions from Section C Section-A Marks : 20 1(a) What is frequency interleaving ? (b) Determine the number of lines get traced during each vertical retrace in 625 line TV System. (c) How illusion of continuity is created in 625 line TV System ? (d) What is a composite video signal? (e) What do you understand by compatibility? (f) What do you understand by an electron multiplier ? (g) What is the function of RF tuner in TV recievers ? (h) What are the characters by which a colored vidual information can be represented ? (i) What is the operating principle of a black and white camera tube? (j) Explain how sync. pulses are generated in a horizontal diffelection circuit. Section-B Marks:5 Each 2. What is a flicker? How it is reduced in 625 line TV System ? 3. Differentiate negative modulation from positive modulation. 4. Draw and explain cross section view of image orthicon camera tube . 5. What is horizontal resolution ? Derive expression for highest modulating frequency in TV Systems. 6. With the help of a diagram explain channe bandwidth requirements for 625 line TV System. Section-C Marks : 10 Each 7. What is high frequency compensation ? Discuss various teqniques for high frequency compensation. 8. Draw block diagram of a monochrome TV Reciever and explain each section. 9. What do you understand by direct coupled video amplifier ?Also discuss its main features. |
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