BBK DV718SI - Chapter Three Principle and Servicing; 3.1 Principle of the Player

3.1.1 Functions and features
This player adopts new generation DVD decode chip, with built-in Dolby decoder, which creates
vivid surround sound effect to bring you to taste cinema effect. It has the following features:
Progressive scanning output produces steadier and clearer pictures with flickering.
HDMI jack.
5.1CH output.
Composite video, S-video and component video output.
Digital picture adjustment to the sharpness, brightness, contrast, chroma and saturation os
picture, gamma correction.
Built-in Dolby digital decoder.
Karaoke function.
Headphone output function.
USB jack.
Compatible with DIVX, MPEG4 format movie.
3.1.2 Block diagram of the player
Its internal structure is mainly composed of decode & servo board, HDMI high definition board,
input/output board, power board and loader components. Block diagram of the player is shown in the
figure 3.1.2.1, except for power board, other signal flow are all shown in the figure. Main function of
loader is to read disc information and transmit to Mt1389, Mt1389 fulfills servo function through D5954
on decode board and other subsidiary circuit to ensure the normal working of loader. FLASH on decode
board is to save system program, SDRAM is to save program when machine is working and read sound
and picture information from disc to ensure smooth output. Main function of AV board is to output various
video signals.
Chapter Three Principle and Servicing
Section One Principle of the Player
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