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Essential safety warnings, laser product identification, and general operational precautions.
Detailed description of all buttons, ports, and display elements of the device.
Guidance on connecting to AC power and installing batteries for operation.
Instructions for connecting headphones and the impact on audio output.
Steps to receive FM and MW radio stations using the antenna and tuning controls.
How to insert, play, pause, and eject CD discs.
Methods for moving between tracks, pausing, stopping, and resuming playback.
Details on repeat, random, and programmed playback for CD discs.
Playing MP3 files from discs, USB drives, and SD/MMC cards.
Instructions for repeat and random playback of MP3 files.
Guide to connecting external audio devices using the AUX IN jack.
Identifying and resolving problems, causes, and solutions for the unit.
Key technical details including power, output, frequency range, and disc loading.
Information on product warranty, service life, and guarantee claims.
Guidance on determining the production date from the serial number in multiple languages.