Mumbai University Previous year question papers
VI Sem Electronics Examination Dec 2006
Television & Video Engineering
1. Question No.1 is compulsory.
2. Atempt any four questions from Q. Nos. 2 to 7.
3. Draw figures wherever necessary.
4. Figures to right indicate full marks.
1.Answer the following questions:
(a) Describe Principle of HDTV.
(b) Define the compatibilit)’in TV systems.
(c) Describe the principle CCD Camera using neat diagram.
(d) State the merits of negative picture modulation.
2.(a) Draw a block diagram S/W TV transmitter and explain
(b) Give reason:
(i) 4:3 is the aspect ratio for TV.
(ii) : All TV standards have odd number of lines.
(c) Describe the Primary and Secondary Colour.its working.
3. (a) Describe the working principle of TV tuner circuits.
(b) Compare the following standard “SECAM standard with N’ISC standard~’
(c) What a~e synchronising pulses? What is the necessity of using horizo~tal synchronising and vertical synchronising pulses?
4.(a) What is a chromicity diagram? For what purpose is this U$ed?C.l.E.colour triangle. ,
(b) Describein brief’iwternaland external control of ‘rv receiver.
5.(a) What 18 IC amplitudes of thp. chrominance signals for following hues: the AGe methods used in TV circuits.functions of an RF amplifier in a television receiver?
(b) Calculate the
(iv) White (Consider NTSC system)
Describe in brief
(c) What are the main <:IC
6.(a) Describe construction, working principle of Vidicon Camera tube, giving nE:at diagram.
(b) Why is the (G-y) Signal not used for transmission or video signal in TV ?
(c) Draw a CVS signals, giving all details on it.
7.(a) De9qribe the equipments~used during TV servicing.
(b) List any six common faults in TV receiver and suggest the remedy.
(c) Describe the meaning of Ghost image and suggest its remedy.