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Consumer Electronics by S. P. Bali

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BLOCK DIAGRAM OF VLP PLAYER

From the discussion so far, the larger part of the block diagram will be self-explanatory. A few items, however, require an explanation.

In the event of a dropout (an interruption of the signal due to any imperfection in the disc) a drop-out detector operates as a switch by means of which a parallel channel, fitted with a line scan delay, can provide information of the previous line. Of the two available audio channels, either one of the two or both (in the case of stereo), can be connected to the VHF modulator. Since normal television receivers are monophonic, the two demodulated audio signals are available at output sockets at the back of the VLP player. These can be connected to a stereo amplifier.

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