Key Functions of the Motherboard:
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Video Processing: Handles input from video sources like HDMI, AV, and other ports, then processes and displays the content on the screen.
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Audio Processing: Manages the sound output, including control over speakers and audio processing.
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Power Distribution: Regulates power from the power supply to different sections of the TV.
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Connectivity: Manages wired and wireless connections (like HDMI, USB, and sometimes Wi-Fi or Ethernet).
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Control Unit: Communicates with the remote control and internal sensors to enable user input.
Common Components:
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CPU (Central Processing Unit): Executes control tasks.
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GPU (Graphics Processing Unit): Handles image rendering and video decoding.
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RAM: Temporary storage for quick access data.
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Audio ICs: Handles sound processing.
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Input/Output Ports: Manages HDMI, USB, and other external connections.
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Power Circuits: Manages voltage regulation.
If you’re dealing with a motherboard issue, it could range from issues with video/audio processing to power or connectivity problems. Diagnosing the exact failure often involves inspecting components like capacitors, resistors, or IC chips for visible damage.