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This document describes the Sony CDP-411/511/D7 Compact Disc Player, a device designed for playing compact discs. The manual provides detailed information on its specifications, usage, and maintenance procedures.
The Sony CDP-411/511/D7 is a compact disc player that reads digital audio data from CDs and converts it into analog audio signals for playback through an amplifier and speakers. It features a range of playback modes, including continuous play, shuffle, and program play, allowing users to customize their listening experience. The device also includes functions for searching within tracks, repeating tracks or discs, and fade-in/fade-out for smooth transitions. For the CDP-D7 model, Digital Signal Processing (DSP) modes are available, offering various sound effects. The player supports both fixed and variable line outputs, as well as an optical digital output for connecting to D/A converters or digital amplifiers.
The device's specifications vary slightly across models (CDP-411, CDP-511, CDP-D7) and regional versions (US, Canadian, AEP, Australian, E Model, UK, Germany).
The CDP-411/511/D7 offers intuitive controls for disc playback. The front panel includes a POWER switch, disc tray, display window, and various buttons for play mode selection (CONTINUE, SHUFFLE, PROGRAM), track control (manual search, AMS buttons), and special functions like PEAK SEARCH, MUSIC SCAN, REPEAT, and FADER. The CDP-D7 model also features DSP mode buttons for sound customization. A LINE OUT/PHONE LEVEL control (or LINE OUT LEVEL +/- buttons on the remote commander) allows adjustment of the variable line output and headphone volume. The remote commander provides convenient control from a distance, including numeric buttons for direct track selection. Connection to an amplifier is straightforward via fixed or variable line outputs, and a digital optical output is available for high-quality digital audio transmission.
The manual emphasizes safety check-out procedures after any service, including AC leakage tests to ensure the device meets safety standards. It provides detailed instructions for performing an S-Curve Check and E-F Balance Check using an oscilloscope, which are crucial for verifying the optical pick-up block's performance. RF Level Check and RF PLL Free-run Frequency Check procedures are also outlined to ensure proper signal processing.
Special notes are provided for handling the optical pick-up block, warning against electrostatic breakdown and emphasizing careful handling of the flexible board. Users are also cautioned about laser diode emission, advising observation from more than 25 cm away from the objective lens. The manual includes a "Safety-Related Component Warning," highlighting critical components that must be replaced with genuine Sony parts to maintain safe operation. For models with a voltage selector, users are instructed to confirm it's set to the local power line voltage before connecting the AC power cord. The exploded views and electrical parts list sections aid in identifying and replacing components during service.
General
