Yashwantrao Chavan Maharashtra Open University 2006 Certification TES Communication Engineering - I - Question Paper

TES074/EE/20070819
Television Engineering
Time : 180 minutes Marks : 100
Instructions for the students :
1. All ques. are compulsory.
2. “Long ans kind ques. (LAQ)” is a supply kind ques. of 20 marks,
which require typical ans of about 60-80 lines in about 32-40 minutes.
3. “Short ans kind ques. (SAQ)” is a supply kind ques. of five marks,
which require typical ans of about 15-20 lines in about 08-10 minutes.
4. Use of non-programmable kind of scientific calculator is allowed.
5. Draw neat diagrams wherever neces


Long ans kind ques. (LAQ’s)

1. (a) define the process of generation of chrominance signal
with a suitable block diagram and related expressions.
(b) define SECAM (coder, decoder) colour television system.


2. (a) What is shadow mask ? provide the constructional details of
shadow mask kind picture tube.
(b) How will you trouble shoot the Remote Control System ?
Which are the trouble symptoms commonly encountered in
the remote control system ? How would you rectify them ?

3. (a) define the working of RF tuner. discuss the process of
Automatic Fine Tuning with a block diagram.
(b) discuss in detail the sequence of operation involved in
i) Colour purity adjustment
ii) Gray scale adjustment
iii)Convergence adjustments in Samsung colour TV receiver


4 (a) discuss the various cable connections in cable TV system.
(b) Briefly discuss the differences ranging from the NTSC, PAL and
SECAM system.


Short ans kind ques. (SAQ’s)

5. Draw the colourplexed composite video signal for equally spaced
R,G, B, Black and white info.

6. define the various service controls for colour TV receiver. 5
7. elaborate the adjustments given in ITT (German) colour
receiver ?

8. elaborate the general safety rules and practices observed in
television system ?

Earning:   Approval pending.