CUSTOM INSTALLATION (C.I.) USE

The 540C V2.0 and 640C V2.0 feature a Control Bus input/output that allow un-modulated remote control commands (positive logic, TTL level) to be received electrically by the unit and looped to another unit if desired. These control commands are typically generated by custom installation (multi-room) systems or remote IR receiver systems.

An IR Emitter Input is also provided that allows modulated IR remote control commands to be received electrically by the unit. Commands on this input operate the unit only and are not looped out demodulated on the Control Bus Output.

This feature is useful for multi-room systems (such as the Cambridge Audio Incognito multi-room system) which feature routed I.R. emitter outputs. Instead of using window emitters stuck over the CD players front panel IR receiver, a mono 3.5mm mini-jack to 3.5mm mini-jack lead can be used for a more reliable electrical connection.

In addition the units feature 'direct' IR/Control codes as well as toggle codes for many of their features to simplify programming custom installation systems. Special direct On / Off commands can be accessed on the supplied remote control for teaching into C.I. systems as follows:

1.Press and hold the Standby button. The remote first generates it's standby (toggle) command. Keep the button held down, after 12 seconds a CD player “On” command will be generated. If the button is kept held down for a further 12 seconds, a CD player “Off” command is generated.

A full code table for this product is available on the Cambridge Audio website at www.cambridge-audio.com.

TROUBLESHOOTING

There is no power

Ensure the AC power cord is connected securely.

Ensure the plug is fully inserted into the wall socket and is switched on. Check fuse in the mains plug or adaptor.

The player will not read the disc

Check the disc is not loaded upside down.

Check that the disc is not too scratched or dirty.

There is no sound

Ensure that the amplifier is set correctly.

Check that the interconnects are inserted correctly.

The disc is skipping

Check that the disc is not too scratched or dirty.

Ensure the player is on a firm surface and not subject to vibrations.

There is a hum coming from the speaker

Ensure that all cable connections are secure.

The remote handset will not function

Check that the batteries have not expired.

Ensure that nothing is blocking the remote sensor.

12Azur compact disc player

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Cambridge Audio 540C, 640C V2.0 user manual Custom Installation C.I. USE, Troubleshooting
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640C V2.0, 540C specifications

The Cambridge Audio 540C is a highly regarded CD player that exemplifies the commitment of Cambridge Audio to deliver exceptional audio performance and build quality. Designed for music lovers who appreciate the nuances of sound, the 540C integrates cutting-edge technology with an elegant design, making it an indispensable addition to any audio setup.

One of the standout features of the 540C is its advanced digital-to-analog converter (DAC). This player incorporates a high-quality Wolfson DAC, renowned for its ability to render music with exceptional clarity and detail. The inclusion of this DAC allows the 540C to reproduce audio with stunning precision, ensuring that every note is captured accurately, preserving the integrity of the original recording.

The 540C also boasts a 24-bit/192kHz upsampling capability. This technology enhances the resolution of audio playback, providing a smoother and more refined sound. By upsampling the audio signal, the player minimizes harmonic distortion and improves the overall listening experience, allowing users to hear their favorite CDs with new depth and richness.

The build quality of the 540C is another area where Cambridge Audio excels. Constructed with a robust chassis, the player is designed to reduce vibration and interference, which can negatively affect sound quality. This attention to detail is complemented by a sleek, minimalist aesthetic that blends seamlessly into any audio system.

Additionally, the 540C features a user-friendly interface, allowing for easy navigation through playlists and settings. The front panel includes a clear display that shows track information, making it simple for users to keep track of their listening experience. The remote control adds another layer of convenience, enabling the operation of the player from a distance without compromising functionality.

In terms of connectivity, the 540C is equipped with both digital and analog outputs, making it versatile when integrating with various sound systems. The inclusion of both coaxial and optical digital outputs allows users to connect directly to amplifiers or receivers that support digital inputs.

Overall, the Cambridge Audio 540C CD player stands out as an outstanding choice for audiophiles seeking top-tier performance in a compact package. With its exceptional DAC, upsampling capabilities, solid build quality, and user-friendly design, the 540C elevates the experience of enjoying music from CDs, making it a timeless addition to any serious audio collection. Its legacy of quality and performance continues to resonate with music enthusiasts around the world.
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