Mechanical and electronic subassemblies for audio playback decks, optical disc drives, and television image-and-sound recording equipment are captured here, serving both consumer electronics repair markets and professional broadcast equipment manufacturers. The heading's scope is narrower than adjacent parts categories: it is limited to apparatus whose primary function is recording or reproducing sound or combined image-and-sound, excluding parts for transmission or reception equipment. Importers should be attentive to the distinction between a part "for" a sound recorder versus a general-purpose electronic component that happens to be installed in one, as CBP applies a principal-use analysis that can shift classification.

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