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If you are looking for technical documentation for repairs, several technical repositories host the relevant diagrams: Schematic Diagrams : Detailed circuit layouts covering the TSUMV59XU-Z1 processor and power stages are available on platforms like and specialized electronics forums. Service Manuals
: The heart of the board. The schematic shows how this chip interfaces with the HDMI, VGA, and AV inputs, as well as the tuner. t.vst59.031 schematic diagram
IF amplifier chain