One - CD Player Chord - Free user manual and instructions

Product Type	CD Player
Brand	Chord
Model	One
Dimensions (W x H x D)	430 x 100 x 300 mm (16.9 x 3.9 x 11.8 in)
Weight	Approx. 4.5 kg (9.9 lbs)
Power Supply	AC 120V/230V, 50/60Hz (auto-select)
Power Consumption	15 W (standby < 0.5 W)
Disc Compatibility	CD, CD-R, CD-RW
Playback Functions	Play, Pause, Stop, Skip, Repeat (1/All/Off), Shuffle, Program
Audio Outputs	RCA (stereo), Optical digital (TOSLINK)
Frequency Response	20 Hz - 20 kHz (±0.5 dB)
Signal-to-Noise Ratio	> 100 dB
Total Harmonic Distortion	< 0.002%
Remote Control	Infrared remote included
Display	Backlit LCD display
Disc Loading	Top-loading or slot-loading (typical: slot-loading)
Maintenance	Clean with soft dry cloth; use lens cleaner disc for laser
Safety Certifications	CE, FCC, RoHS
Spare Parts Availability	Remote control, power cord, optical cable (user-replaceable)
Repairability Index	Moderate; laser assembly and transport mechanism serviceable

Frequently Asked Questions - One Chord

How do I connect the Chord One CD player to my amplifier?

Use the RCA stereo cables (included) to connect the Audio Out jacks on the CD player to an available AUX, CD, or Line In input on your amplifier. For digital connection, use an optical cable (not included) to the Optical Out port.

Can the Chord One play CD-R or CD-RW discs?

Yes, the Chord One is compatible with CD, CD-R, and CD-RW discs. Ensure the discs are finalized and in good condition for optimal playback.

My CD player is not reading discs. What should I do?

First, try a different commercial CD to rule out disc issues. Check if the disc is inserted correctly (label side up). Clean the disc with a soft cloth. If the problem persists, use a CD lens cleaner or consult the manual for further troubleshooting.

How do I program the playback order of tracks?

Press Program on the remote or front panel. Use the Skip buttons to select the desired track, then press Program again to add it to memory. Repeat for up to 20 tracks. Press Play to start programmed playback.

Does the Chord One support shuffle playback?

Yes. Press the Shuffle button repeatedly to cycle through Shuffle Off, Shuffle All (random order all tracks), and Shuffle Program (random within programmed playlist).

Can I play MP3 CDs on the Chord One?

No, the Chord One is designed for standard audio CDs only (CD-DA format). It does not support MP3 or other compressed audio files on CD.

What is the output level of the analog audio?

The analog output delivers a nominal 2 V RMS at 0 dBFS, suitable for connecting to most line-level inputs on amplifiers or receivers.

How do I clean the CD player?

Use a soft, dry cloth to wipe the exterior. For the disc tray and lens, use a CD lens cleaner disc periodically. Avoid using any liquids or abrasive cleaners. Unplug the unit before cleaning.

Does the remote require batteries? What type?

Yes, the remote requires two AAA batteries (not included). Open the battery compartment on the back of the remote and insert the batteries with correct polarity.

What should I do if the display shows an error message?

Common error codes: NO DISC means no disc or unreadable disc; ERROR may indicate a mechanical issue. Try removing the disc, turning the unit off for 30 seconds, then turning it back on. If the error persists, consult the manual or contact support.

USER MANUAL One Chord

Thank you for buying a Chord Electronics product.

Before you start to enjoy your CD player, please take a couple of minutes to read how to connect your audio equipment and loudspeakers and how to maximise your listening experience.

inventory

As well as your ONE and this user manual, you should also have received the following items.

1. 'CD' remote control
2. Mains cable
3. Chord guarantee registration card
4. Remote control manual

This unit complies with 21 CFR 1040.10 and 1040.11

when setting up

To ensure that your CD player works efficiently and safely, please pay particular attention to the following issues.

ventilation

Your Chord player should have at least 5cm of clear space all around it to ensure a free flow of air at all times. We do not recommend that you place ONE directly on a carpet.

mains lead and plug

All Chord equipment comes supplied with the correct mains lead and plug. This should be used at all times.

if you need to fit a plug for UK/Europe

Connect the blue wire to the neutral terminal

Connect the brown wire to the live terminal

Connect the yellow/green wire to the earth terminal

if you need to fit a plug for US/Canada

Connect the white wire to the neutral terminal

Connect the black wire to the live terminal

Connect the green to the earth terminal

earthing issues in Europe

In some European countries a hum may occur if your ONE is connected to mains sockets that do not have an earth. If this is the case please ensure that:

1. Your player is connected via a multi-way mains block, which contains an earth point at each socket outlet. This is to ensure that the chassis metalwork of each item is connected together.

2. We recommend that an earthing method for your building be implemented.

3. Use the connecting points on your Chord unit and connect to an available earth point.

Safety Warnings

It is important that your player is earthed at all times via its own mains lead. Failure to do this may be hazardous. The power supply components within the player are designed to operate at lethal voltages and energy levels. Circuit designs that embody these components conform to applicable safety requirements. Precautions must be taken to prevent accidental contact with power-line potentials. Do not connect grounded test equipment.

Caution: This product employs a laser that emits both visible and invisible radiation. Removal of the top cover or tampering with any of the enclosed electronics may result in exposure to hazardous levels of laser radiation that could cause eye damage. To prevent injury this product should be returned for qualified service to Chord Electronics Ltd.

There are no user serviceable parts within the ONE CD player. Unauthorised tampering or dismantling of this product will invalidate the warranty and could cause injury.

mains connection

The mains connector of ONE is at the back of the unit. Plug the female end (socket) of the mains cable into the power connector of the player, and the male end (plug) of the mains cable into mains wall socket or mains extension socket.

Mains Connector and Switch

powering up

Press the left-hand side of the power switch labelled 'I'. ONE will now power up.

If ONE has no disc loaded, the top panel display with read "NO DISC"; if a disc has been loaded then the number of tracks and length of the CD will be shown. Please allow a short time for ONE to read the disc's Table of Contents (TOC). During this time the display will indicate "-- ----"

powering down - long-term

1. Press the STANDBY button on the remote control to put ONE into STANDBY.
2. Press the right-hand side of the power switch labelled 'O'.

powering down - short-term

For everyday use there is no need to power ONE down completely.

Press the STANDBY button on the remote control to put ONE into its Standby mode.

connecting your equipment

Right RCA output

Left RCA output

S/DIF2 OUTPUT

Right XLR output

Left XLR output

ONE - rear panel connections

All the output connections of ONE are situated on the rear panel of the player.

Analogue outputs

ONE has both RCA-phono and balanced XLR analogue outputs, together with BNC digital S/DIF2 output.

Chord recommend the use of balanced analogue cables over RCA-phono wherever possible, as this allows improved signal-noise performance and immunity to noise pickup from outside the system.

Digital outputs

ONE uses a BNC connector with 75ohm impedance for digital audio. Although less common than RCA-phono digital connectors, BNC connectors exhibit consistent impedance behaviour and are essential for the correct transfer of digital audio data.

If your digital-analog converter only has RCA-phono coaxial digital inputs, it is worth having a cable made by a specialist manufacturer. Please avoid RCA-BNC adaptors as they will undoubtedly impair the sound quality. In all cases a correctly screened cable should be used.

using ONE with QBD76

ONE digital output

QBD76 dual data inputs

QBD76

Connect the S/DIF2 output from the ONE to either BNC INPUT on the QBD76.

If you have more than one source with coaxial output please ensure that the other source is switched OFF when listening to the ONE (and turn ONE off when listening to the other source).

We strongly advise that you use 75ohm hard-wired BNC-BNC cables and avoid BNC-RCA adaptors wherever possible, to avoid problems of impedance mismatch and signal reflections.

RAM buffer settings for QBD76

ONE has been designed as the ultimate reference CD source for the world's finest digital-analogue converters, such as our own QBD76. As such, ONE should be significantly less reliant on QBD76's RAM buffer than many designs; you may still find improved performance in your system when using the buffer. Please refer to the QBD76 manual for further details.

everyday use of your ONE

Loading and removing discs

Loading the disc

Firstly open the lid using the handle at the back of the player. Grab the handle firmly between forefinger and thumb, then push upwards.

ONE - top view

Placing the disc

Place the disc gently but firmly in the CD housing so that the centre of the disc sits right on the spindle. Now close the lid using the handle. Wait a short time for ONE to read the disc Table of Contents before you press Play.

Removing discs

Using your forefingers, push the disc towards the back of the player as shown by the arrow above, so that the disc rises gently over the CD spindle. You should now be able to lift the disc out with your thumb.

basic operation

ONE - top panel controls

ONE - remote control

For your convenience some CD functions can be accessed from the top panel and all the functions on the supplied remote control.

PLAY

To play the disc from the beginning, press "Play" (▶).

To select a particular track, press the track number eg. 6, followed by the "Play" button.

STOP

To stop the disc, press "Stop" (■).

PAUSE

To pause the disc at a particular time, press "Pause" (■). Play can be resumed by pressing either "Play" or "Pause".

To select the next or previous track, press Next Track (▶) or Previous Track (◀).

To search through the disc in either direction, hold down Search Back◀◀ ) or Search Forward (▶▶)

To speed up the search, press the "FAST" key once while Search Back or Search Forward are held down. The FAST key has no effect if pressed on its own.

STANDBY

Press the STANDBY button to put ONE into Standby and to wake it up again.

TIME

Normally the player will display the time elapsed on the track you are playing.

Press 'TIME' once and it will now show total time elapsed on the disc and display TOTAL; press 'TIME' again and the player will show the time remaining on the disc and display TOTAL REM. Press TIME once again to return the display to normal.

advanced functions

Program Mode - Programming a track selection –

Press the track number (eg. 7) followed by the “OK” button, then the next track (eg. 4) followed by “OK”, and so on until all tracks have been programmed. To play your selection, press PLAY.

If you press the "OK" button before entering a track number, an error message "ERR" will appear on the top panel display.

When in program mode, PROGRAM will be shown on the display. The Previous Track, Next Track and Search functions will all work as normal, but will move around between the tracks you have programmed.

The STOP button, if pressed once, returns the player to the beginning of the programmed selection. If you press STOP a second time then you will exit program mode and your track selection will be lost.

REPEAT

While the disc is playing, press "REPEAT" once to repeat the whole disc. REPEAT will be shown on the top panel display. Previous Track, Next Track and Search will work as normal in this mode.

Press 'REPEAT' again to repeat a particular track; REPEAT1 will now be shown on the display. If you press Previous or Next track; if you Search past the beginning or end of the track; or if you press STOP, you will exit repeat mode.

Pressing 'REPEAT' for a third time will exit repeat mode.

SHUFFLE

Press 'SHUF' and the player will play tracks in random order until all tracks have been played. RANDOM will be shown on the top panel display.

If you want random play to continue indefinitely, press 'SHUF' and then 'REP'. Play will now continue until you press STOP.

frequently asked questions about ONE

How do I use ONE with my DSP8000/R?

For optimal performance, use ONE and QBD76 in conjunction with your DSP8000/R as outlined in the DSP8000 manual and pages 7-8 of this manual. When connecting ONE to DSP8000AV directly, use the stereo balanced XLR input for best performance. For the best sonic transparency, configure this input to 'Bypass' instead of 'DSP'.

If the stereo balanced input is already being used by another source such as the Chord Symphonic phono stage, you could either use the stereo analogue inputs, or the L/R pair of the 7.1 bypass input.

What gain level should I use with ONE and my Chord preamplifier?

For PRIMA, gain 0.5 is suggested.

For CPA series preamplifiers, gain 1.5 is suggested.

The best settings will depend on the output levels from your other sources. The user selectable gain is intended to allow the user to 'even up' the levels from several source components. Note that CPA 2500 and CPM 2650 do not feature a user-adjustable gain section.

For full details please refer to the Preamplifiers/Choral Series manuals.

Why does my ONE run warm?

Advanced digital circuitry tends to generate a good deal of heat! Your ONE is made from a solid billet of Aluminium, which acts like a giant heat sink, and removes the need for fans as found on many electronic devices. So if the case is warm to the touch, there is no cause for concern.

Product Specification

Frequency Response: 20Hz - 20kHz +/- 0.2dB

Signal-noise ratio: 106dB A-weighted

Channel Separation: 100dB @ 1kHz

Total Harmonic Distortion: < 0.003% 20Hz to 20kHz

DAC Architecture: 24-bit 192kHz Delta-Sigma, 128x oversampling

Laser Mechanism: Philips CD-Pro2M

Analogue Outputs: 2 x RCA-phono single ended, 2 x XLR balanced

Digital Outputs: 1x BNC digital Coaxial SPDIF

Finish Options: Satin Silver, Satin Black, Brilliant Gold or Silver Chord badge

Mains Power: 50v AC through to 260v AC Auto line adjust

Dimensions (mm): 335 x 105 x 170 (W x H x D)

Weight: 7 Kg

The above specification is subject to change by Chord Electronics Ltd without any prior notice

Chord Electronics Limited

The Pumphouse

Farleigh Bridge

Farleigh Lane

East Farleigh

Kent ME16 9NB

Tel: [phone]

Fax: [phone]

Email: [e-mail]

http://www.chordelectronics.co.uk

CHORD