Audio and video reproduction apparatus having main board on which surface mount type connectors are mounted

A video and audio reproduction apparatus, comprising:

• a display unit configured to display an image;
• a speaker unit configured to output audio;
• a main board comprising a plurality of circuit elements, the main board configured to receive a video signal and an audio signal provided from an external apparatus, configured to output a signal-processed video signal to the display unit to display the image, and configured to output a signal-processed audio signal to the speaker unit to output the audio;
• and
• a power supply unit comprising a plurality of power supply circuit elements, the power supply unit configured to receive a main power from an outside source and supplying a power to the display unit, configured to supply a power to the speaker unit, and configured to supply a power to the main board,
• wherein the main board further comprises:
• a single multi-layered printed circuit board having a front surface and a back surface,
• an external connection connector module comprising a plurality of connectors which are connected with the external apparatus and are configured to receive the video and the audio signal respectively or simultaneously;
• a tuner module configured to receive an external broadcasting signal;
• and
• an internal connection connector module comprising a plurality of connectors to be connected with each of the display unit, the speaker unit, and the power supply unit, and the external connection module and internal connection module are each surface-mounted on the front surface of the single multi-layered printed circuit board,
• wherein a main chip, electrically connected with each of the external connection connector module and the internal connection connector module, is surface-mounted on the back surface of the single multi-layered printed circuit board.

A video and audio reproduction apparatus, comprising:

• a display unit configured to display an image;
• a speaker unit configured to output audio;
• a power supply unit configured to supply a power to the display unit, a power to the speaker unit, and a power to the main board;
• a single multi-layered connection board configured to control the display unit and the speaker unit, connected to an external apparatus configured to transmit a video signal and an audio signal and comprising a front surface and a rear surface disposed opposite from the front surface;
• a plurality of connectors divided into a plurality of groups;
• and
• a main processor;
• wherein the plurality of connectors comprises:
• at least one external connector which is configured to connect to an external device and which is disposed on the front surface of the single multilayered connection board;
• and
• at least one internal connector configured to connect to an internal device, and which is disposed on the front surface of the single multi-layered connection board, and
• wherein the main processor electrically connected to the at least one external and internal connectors is disposed on the rear surface of the single multi-layered connection board.