3.1.1 Functionandfeatures
This model adopts new generation DVD decode chip, with built-in Dolby decoder and realistic
surround system, which brings you vivid and real movie effect. It has the following features:
Progressive scanning output to produce steadier and clearer pictures without flickering.
5.1CH output.
Composite video, S-video, component video output..
Digital picture adjustment to the sharpness, brightness, contrast, chroma and saturation of
pictures, gamma correction.
Built-in Dolby digital decoder.
Karaoke function.
Hi-Fi stereo headphone output.
Compatible with DIVX, MPEG4 format disc.
3.1.2 Block diagram of the player
Its internal structure is mainly composed of decode & servo board, power amplifier board,
input/otuput board, panel, headphone board, tuner, power board and loader. The principle block diagram
is shown as the figure 3.1.2.1. All other signal flow is shown in figure except power board. The function
of loader is to read disc information and transmit it to MT1389, which performs servo function through
D5954 on decode board and other supplementary circuit, and ensues the normal working of loader.
FLASH on decode board is to store system program
, SDRAM is the saved software and sound/picture
information read from disc to ensure its smooth output. Main function of AV board is to output various
video signals. This player is also with headphone and microphone, which can meet the demands of
customers.
Chapter Three Principle and Servicing
Section One Principle of the Player
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