AV receiver Users manual 2

ENGLISH

Contents
Introduction....3 Before connecting....3 Limited warranty...4 Safety precautions...4 Important safety instructions...5 Front panel controls...6 Rear panel connections...7 Remote control....8 Front panel display...9 Loudspeaker connections...9 Analog audio connections...10 Digital audio connections..10 Video connections...11 HDMI connections...11 5.1/6.1/7.1 Direct In...12 7.1 Preamp Out...12 Aerial connections...13 Front Input connections...13 640R setup....14 1. Speaker configuration...14 2. Speaker delay....15 3. Level calibration...16 4. Source setup...16 5. Assigning HDMI...17 Surround Sound modes...18 Operating instructions...19 Decode modes...20-22 Audio split mode....24 Recorder 1/2...24 Tone/Sub/LFE configuration...24 Input naming...24 OSD setup....25 Multi-Room connections...26 Custom installation use...27 Reset/Back-up memory...27 Troubleshooting...27 Technical Specifications...28

Introduction

Thank you for purchasing this Cambridge Audio Azur range AV receiver. The 640R is designed for excellent multi-channel surround-sound c s performance without compromising on music reproduction. As such, the seven 100W audiophile grade fully discrete amplifiers are kept as separate as possible from the processing and input stages and feature a large power supply with a low flux toroidal transformer. This careful design of the amplifier stages ensure that the 640R can reproduce the dynamics and scale required for modern movie soundtracks whilst also being able to reproduce a genuinely musical performance with either stereo or multi-channel music sources. A full range of digital and analog inputs are fitted. Digital inputs allow for the connection of suitably equipped DVD players, satellite/set-top boxes and games consoles for decoding into stereo, stereo + sub or various digital surround formats. The latest formats are supported including Dolby Digital and DTS in 5.1, 6.1 or 7.1 variants. The 640R is also capable of decoding encoded analog or digital stereo sources in Dolby Pro Logic II or IIx and DTS Neo:6, again in 5.1, 6.1 or 7.1 variants for a convincing and effective surround experience from a matrix encoded stereo source. Sophisticated post-processing of 5.1 or 6.1 digital material is also possible with PLIIx or DTS Neo:6 to turn these formats into 6.1 or 7.1. Conventional analog stereo inputs allow the connection of audiophile CD players and the like, and an Analog Stereo Direct mode ensures the very best possible stereo reproduction for these. The 640R also carries a 5.1 / 6.1 / 7.1 channel analog input. This feature allows for the connection of a DVD Audio or SACD player equipped with a 5.1 output and is compatible with future external 6.1/7.1 audio formats. As well as the full complement of audio inputs, the 640R also performs Composite, S-Video and Component Video input switching and transcoding. The component video inputs and outputs are progressive scan and HDTV compatible and the unit features full On-Screen Display (OSD) on all analog video outputs. Transcoding allows composite video and/or S-Video to be converted to Component video for a simpler interface to the TV/Monitor. In addition HDMI switching allows the very latest DVD players and Set-top boxes to be routed through the 640R to the TV/Monitor allowing direct digital transfer of high definition video for the very best picture quality. Multi-Room compatibility is featured in the form of A-BUS ReadyTM/Incognito ReadyTM outputs for either Cambridge Audio Incognito keypads (and power supply) or other manufacturers products compatible with the A-BUS standard. This allows a 2 or 3 zone multiroom system to be easily constructed, second and third zone video outputs mean the remote rooms can even have video capability. An RS232 port, IR Emitter In and Control Bus In/Out also make it easy to integrate the 640R into a Custom Install situation. All this proprietary engineering is housed within our low resonance, acoustically damped chassis. An Azur Navigator remote control is also provided, giving full remote control of your AV receiver in an attractive and easy to use handset. Remember your 640R can only be as good as the system it is connected to. Please do not compromise on your source equipment, speaker package or video and audio cabling. Naturally we particularly recommend DVD/CD players or other source equipment from the Cambridge Audio Azur range, which have been designed to the same exacting standards as our receivers. Your dealer can also supply excellent quality Cambridge Audio interconnects to ensure your system realises its full potential. Thanks for taking the time to read this manual, we do recommend you keep it for future reference.

Plug Fitting Instructions (UK Only)
The cord supplied with this appliance is factory fitted with a UK mains plug fitted with a 5 amp fuse inside. If it is necessary to change the fuse, it is important that a 5 amp one is used. If the plug needs to be changed because it is not suitable for your socket, or becomes damaged, it should be cut off and an appropriate plug fitted following the wiring instructions below. The plug must then be disposed of safely, as insertion into a mains socket is likely to cause an electrical hazard. Should it be necessary to fit a 3-pin BS mains plug to the power cord the wires should be fitted as shown in this diagram. The colours of the wires in the mains lead of this appliance may not correspond with the coloured markings identifying the terminals in your plug. Connect them as follows: The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK. The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED. The wire which is coloured GREEN/YELLOW must be connected to the terminal which is marked with the letter E or coloured GREEN. If your model does not have an earth wire, then disregard this instruction. If a standard 13 amp (BS 1363) plug is used, a 5 amp fuse must be fitted, or if any other type of plug is used a 5 amp fuse must be fitted, either in the plug or adaptor, or on the distribution board.
Important safety instructions
Please take a moment to read these notes before installing your 640R, as they will enable you to get the best performance and prolong the life of the unit. We advise you follow all instructions, heed all warnings and keep the instructions for future reference.

Overloading

Do not overload wall outlets or extension cord as this can result in a risk of fire or electric shock. Overloaded AC outlets, extension cords, frayed power cords, damaged or cracked wire insulation, and broken plugs are dangerous. They may result in a shock or fire hazard.

Ventilation

IMPORTANT - The unit will become hot when in use. Please ensure there is ample ventilation (at least 10cm clearance all round). Do not put any objects on top of this unit. Do not situate it on a rug or other soft surface and do not obstruct any air inlets or outlet grilles. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Do not stack multiple units on top of each other. Do not place in an enclosed area such as a bookcase or in a cabinet without sufficient ventilation. Do not obstruct the rear heat tunnel ventilation grille. Ensure that small objects do not fall through any ventilation grille. If this happens, switch off immediately, disconnect from the mains supply and contact your dealer for advice.

Grounding and polarisation
Do not defeat the safety purpose of the polarized or grounding type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or third prong are provided for your safety. If the provided plug does not fit your outlet, consult an electrician for replacement of the obsolete outlet.

Power sources

The unit should be operated only from the type of power source indicated on the marking label. If you are not sure of the type of powersupply to your home, consult your product dealer or local Power Company. This unit has been designed to be left in Standby mode when not in use, this will increase the life of the amplifier (this is true with all electronic equipment). To turn the unit off completely switch off on the rear panel. If you do not intend to use this unit for a long period of time, unplug it from the mains socket.

IMPORTANT

If the unit is run at a very high level, a sensor will detect a temperature rise and show "PROTECTION OVERLOAD" on the display. The unit will then go into Standby mode. It cannot be switched on again until the temperature has fallen to a more normal level.

Power cord protection

The unit must be installed in a manner that makes disconnection of the mains plug from the mains socket outlet (or appliance connector from the rear of the unit) possible. Where the mains plug is used as the disconnect device, the disconnect device shall remain readily operable. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the unit. Be sure to insert each power cord securely. To prevent hum and noise, do not bundle the interconnect leads with the power cord or speaker leads. 5

Front panel controls

azur 640R

AV Receiver

Volume

Tuner FM/AM

Video 1

Video 2

Recorder 1

Recorder 2

7.1 Direct
Analog Stereo Direct Mute
Standby / On Phones Tuning + Mode/Store Digital Processing Options Video 3 L Audio R Video S-Video Optical

Audio Input Type

Stereo Modes
Pro Logic/Neo/ Dolby Digital/ DSP Surround DTS Surround Modes Modes

Video Input Type

1 Standby/On Switches the unit between Standby mode (indicated by dim power LED) and On (indicated by bright power LED). Standby is a low power mode. The unit should be left in Standby mode when not in use. 2

Serial No. label fitted on underside

Update/Normal

A-BUS Ready/Incognito Ready multi-room outputs
For dealer use only - Switches the 640R between normal (default) mode and software update mode. Do not change the mode to update or make connections to it in update mode as damage may result! 2
PSU In - Connect an Incognito PS5 to supply power to the connected multi-room keypads/speakers. Keypad 1/2 - Connect one or two Incognito A-BUS KP10 keypads (or other A-BUS compatible keypads) or AS10 Active Ceiling Speakers using CAT5/5e cable, allowing 2nd/3rd zone multi-room capability. IR - Three IR emitter outputs for remote control of source equipment. Video Out 1/2 - Provides video feeds to the 2nd/3rd zone. Please refer to the Multi-Room section of this manual for more information on connections and set-up. 12
Used for control of the 640R in Custom Install situations. A full protocol is available for the 640R on our website. 3

FM/AM antenna

All tuner antenna connections are made here. Refer to the Antenna Connections section of this manual for more information. 4

Emitter In

Inputs and output to a suitable TV/Monitor. The HDMI inputs can be assigned in the OSD to the DVD, Video 1, Video 2 or Rec 1 sources, see later section. 5
Allows modulated IR commands from multi-room systems or IR repeater systems to be received by the 640R. Commands received here are not looped out of the Control Bus. Refer to the Custom Installation section for more information. 13
Video 1/2, Recorder 1/2, DVD, Aux
Please refer to the connection diagrams later in this manual for more information on these inputs and outputs. 6
In - Allows un-modulated commands from multi-rooms systems or other components to be received by the unit. Out - Loop out for control bus commands to another unit. 14

TV/Mon outputs

S-Video - Connect to your television via S-Video cable. Composite - Connect to your television via 75 ohm RCA phono cable. Component - Connect to the Cr/Pr, Cb/Pb, & Y terminals of a television set. Normally only one type of connection will be used. These outputs are also used to view the 640Rs On-Screen Display setup menus. 7

Speaker terminals

Connect to loudspeakers with an impedance of between 4-8 ohms. 7.1, 6.1, 5.1 or less connections can be made. 15

Mains power lead

Once you have completed all connections, plug the AC power lead into an appropriate mains socket. The AV receiver is now ready for use. 16
Heat tunnel vent grille Component Video inputs (DVD, Video 1/2, Recorder 1)
Allows cooling of internal circuitry. DO NOT OBSTRUCT! 8

Dolby Digital

Known also as DD (3/2) or DD 5.1, provides (up to) 5.1 output from suitable encoded Dolby Digital material, with 5 main channels (Front Left, Front Right, Centre, Surround Left, Surround Right) and a Low Frequency Effects Channel for the subwoofer, all discretely encoded. Decoding Dolby Digital requires a Dolby Digital encoded DVD disc and a digital connection from the source equipment (Such as a DVD player) to the 640R. Note: Dolby Digital and DTS formats can sometimes carry less channels than their maximum such as Dolby Digital (2/0) which means a Dolby Digital encoded signal which is actually only carrying a two channel stereo signal (other channels inactive).

Pro Logic IIx

A newer version of Dolby Pro Logic II which is able to recreate 6 or 7 discrete surround sound channels (with fully stereo Back Surrounds in 7 channel mode) from suitable encoded stereo source material. Pro Logic IIx also has modes for post processing either Stereo material or 5.1 material into 6 or 7 channels whether or not it has been Pro Logic IIx encoded. When 5.1 decoding is required, Dolby Prologic II decoding will always be used by the 640R in place of Pro Logic IIx as IIx only works for 6 or 7 channel output. Note: Pro Logic IIx does not include a Low Frequency Effects channel for the Subwoofer, but the 640R can create a Subwoofer output (for 6.1/7.1) via Bass management. Refer to the Tone/Sub/LFE configuration section in the Operating instructions part of this manual.
Known also as DTS (3/2) or DTS 5.1, DTS provides (up to) 5.1 output from suitable encoded DTS material, with 5 main channels (Front Left, Front Right, Centre, Surround Left, Surround Right) and a Low Frequency Effects Channel for the subwoofer, all discretely encoded. Decoding DTS requires a suitably encoded DTS disc and a digital connection from the source equipment to the 640R.

DTS Neo:6

A DTS technology which is able to recreate 6 channel (Left Front, Right Front, Centre, Left Surround, Right Surround, Surround Back ) surround sound from suitable analog matrix encoded stereo source material. DTS Neo:6 material can be played back by normal Stereo equipment (as Stereo) or decoded into 6 channel surround-sound. Note: Neo:6 does not include a Low Frequency Effects channel for the Subwoofer, but the 640R can create a Subwoofer output via Bass management. Refer to the Tone/Sub/LFE configuration section in the Operating instructions part of this manual. DTS Neo:6 can also be be decoded as 7.1 by sending the Surround Back decode to the both the Surround Back Left and Right speakers (forming two mono Back Surrounds).

Dolby Digital EX

Known also as DD (3/3) or DD 6.1, an enhanced form of Dolby Digital. On top of the discretely encoded 5.1 channels DD EX provides an extra 6th channel (Surround Back, giving 6.1) matrix encoded into the rear surrounds for greater image depth and more solid sound localisation behind the listener. DD EX requires a DD EX encoded disc. DD EX is backwards compatible with DD 5.1 decoding. If DD EX is decoded as normal DD the Surround Back signal will be present in both Left and Right Rear Surrounds (forming a phantom rear centre). It can also be decoded as 7.1 by sending the Surround Back decode to both the Surround Back Left and Right speakers (forming two mono Back Surrounds).

DTS-ES Matrix

Known also as DTS (3/3) Matrix, an enhanced form of DTS. On top of the discretely encoded 5.1 channels DTS ES also provides an extra 6th channel (Surround Back giving 6.1), matrix encoded into the rear surrounds for greater image depth and more solid sound localisation behind the listener. DTS ES requires a DTS ES encoded disc. DTS ES material is backwards compatible with DTS 5.1 decoding. If DTS ES is decoded as normal DTS the Surround Back signal will be present in both Left and Right Rear Surrounds (forming a phantom rear centre). It can also be decoded as 7.1 by sending the Surround Back decode to the both the Surround Back Left and Right speakers (forming two mono Back Surrounds).

DTS 96/24

A DTS technology that provides 5.1 channels of 96kHz / 24bit audio (along with video if required) on DVD-Video and DVD-Audio (video zone) discs (when suitably encoded in DTS 96/24). DVD players which allow 'DTS digital out' pass the DTS 96/24 bitstream over S/PDIF for decoding in the 640R.

DSP modes

These modes allow a realistic surround-sound experience from source material that has no encoding at all. The surround sound effect is achieved by Digital Signal Processing of the Analog or Digital stereo source used. Five modes are possible: Movie, Music, Room, Theatre and Hall.

DTS-ES Discrete

Another enhanced form of DTS, also known as DTS (3/3) Discrete or DTS ES Discrete 6.1. DTS ES Discrete also provides an extra channel (Surround Back) for greater image depth and more solid sound localisation behind the listener, however in this case extra data is included in the bitstream so that all channels are discretely encoded. The Surround Back has greater separation from the other channels than is possible with matrix encoded technologies. DTS-ES Discrete requires a DTS-ES Discrete encoded disc. DTS ES Discrete is backwards compatible with both DTS 5.1 and DTS ES Matrix 6.1 decoding. If DTS ES Discrete is decoded as normal DTS the Surround Back signal will be present in both Left and Right Rear Surrounds (forming a phantom rear centre). If DTS ES Discrete is decoded with DTS ES Matrix the Surround Back signal will be decoded separately (i.e. as 6.1) but by a matrix process, which will give the same channel separation as if the source disc were actually DTS ES Matrix (but not as good as DTS EX Discrete). It can also be decoded as 7.1 by sending the Surround Back decode to both the Surround Back Left and Right speakers (forming two mono Back Surrounds).

Other modes

Stereo/Stereo + Sub
Only the Front Left and Front Right speakers (and subwoofer if selected) have output in this mode. If an analog source is selected it will be converted to digital via 24 bit A/D converters to allow digital domain sub creation and bass/treble controls. If a digital source is selected the 640R will be processing either LPCM stereo (from the digital outputs of a CD player for instance) or a Stereo downmix of DD or DTS material (from the digital output of a DVD player for instance).
Selects the analog inputs for the current source directly with no A/D conversion, DSP processing, Bass/Treble or subwoofer channel active. Provides the very best fidelity for analog Hi-Fi source equipment. In this mode the 640R is acting just like a normal Hi-Fi integrated amplifier.

Pro Logic II

The replacement for original ProLogic, Pro Logic II is a technology where 5 channels (Front Left, Front Right, Centre, Surround Left, Surround Right) are encoded into a Stereo mix by an analog matrix process. Dolby 18

Operating instructions

To activate the 640R, switch the Power button on the rear panel to On then press the Standby/On button on the front panel.

Selecting the source

1. Select the desired source by pushing the corresponding source button on the front panel or remote control.
DVD Video 1 Video 2 Recorder 1 Aux CD Recorder 2 7.1 Direct
Dolby Digital EX/DTS ES Modes - Selects a range of digital surround modes with the appropriately digitally encoded material (only). These modes are for use with the digital outputs (set to Bitstream/Raw) from DVD players or satellite receivers etc. In order for the 640R to allow selection of these modes a valid input digital bitstream must be present. This is because the 640R needs to read the incoming flags in order to determine the type of decoding which can be used and present any options that might be possible. If no bitstream is present, pressing this button will result in the 640R displaying Mode Unavailable. Note: The modes available for each button depend both on the Speaker Configuration that has previously been set in the OSD and on the source material. For 5.1 Speaker setups the Dolby Digital/DTS Surround Modes button will have a maximum of only one mode available which will depend on the source material. See the following Decode modes tables. The Prologic/ Neo:6/DSP modes button will present more options where possible including Post-Processed modes. These are modes that allow extra processing to be applied after the main surround-sound decoding. For instance Dolby Digital (2/0) + PLII Music. Which adds a 5.1 ProLogic decode to a Stereo Dolby Digital decode to turn 2 channel stereo into 5.1. This mode would be accessed by first selecting the Dolby Digital EX / DTS ES Mode button with a Dolby (2/0) bitstream present (selects a normal Dolby Digital (2/0) decode. Now press the Pro Logic/ Neo:6/DSP mode button to access the next mode which adds a PLII decode on top. For 6.1 or 7.1 Speaker setups, the number of decoding possibilities increases as shown in the following Decode modes tables. Several extra Post Processing modes are available using either Prologic IIx or Neo:6. Incoming Dolby Digital/DTS streams are always shown on the front panel display as Dolby Digital (x/x) or DTS (x/x), where the bracketed numbers indicate the active channels in the source material. Active output channels are shown by the icons on the right hand side of the front panel display. Possible incoming DD/DTS types are: (1/0) - Mono, Centre channel only (2/0) - Left/Right stereo (2/1) - Left/Right stereo and LFE (Sub) (2/2) - Left/Right stereo and Left/Right surround (3/0) - Left, Centre, Right (3/1) - Left, Centre, Right and LFE (Sub) (3/2) - 5.1: Left, Right, Centre, Left Surround, Right Surround and LFE (Sub) (3/3) - 6.1: Left, Right, Centre, Left Surround, Right Surround, Surround Back and LFE (Sub)

2. If necessary, press the Audio Input Type button to select the input mode of the source equipment, either analog or digital (depending on the connection made on the rear panel).
The digital or analog icons on the display show which is the currently selected input type.
Note: The 640R stores the input type for each source so that it is automatically recalled when that source is selected again.
Selecting the desired listening mode
Select an appropriate mode for the source material/type you are listening to by pressing one of the 3 main Digital Processing Options buttons and cycling through sub-modes where available.
In all cases the first time a mode button is pressed the 640R will report the current decoding mode on the front panel display. Pressing the button again will then cycle to the next available mode (if there is one). If no button is pressed for 4 or 5 seconds the 640R returns to normal operation without changing mode. Stereo Modes - Selects 2 channel Stereo operation for stereo material, pressing again selects Stereo + Sub mode. This is a digitally processed mode that allows bass and treble controls, and sub generation if required. The input can be either analog (in which case it will be turned into digital by 24 bit A/D conversion) or natively digital. Digital inputs can be connected to the SPDIF outputs from Tuner's or CD Players etc (LPCM) or the digital outputs of DVD players (set to Bitstream/Raw) playing 2-channel Dolby Digital (2/0) or DTS (2/0) material. Prologic/Neo:6/DSP modes - Selects a range of surround modes with appropriate matrix encoded material. These modes are for use with the analog or digital outputs from TV's or VCR Players for instance if the source material has been encoded using one of these processes. ProLogic and Neo:6 are both available in various guises to decode appropriately encoded soundtracks. Additionally DSP modes are available to process sources with no encoding at all. Due to the matrix encoding process none of these modes incorporate flags that tell the 640R the type of encoding used in the source material. Thus you must manually select these modes.

Decode modes - 5.1 speaker setup
Pro Logic/Neo/ DSP Surround Modes
Dolby Digital/ DTS Surround Modes
Incoming audio format PCM
Native channel resolution 2 (5.1/7.1 if PLII/PLIIx encoded)
Modes (button cycles round)

Output channels

Output Channels
PCM + PLII Movie PCM + PLII Music PCM + PLII Game PCM + Neo:6 Cinema PCM + Neo:6 Music PassThru Movie Music Room Theatre Hall Dolby Digital (2/0) + PLII Movie Dolby Digital (2/0) + PLII Music Dolby Digital (2/0) + PLII Game
>5.1 >5.1 >5.1 >5.1 >5.1 >5.1 ! >5.1 ! >5.1 ! >5.1 ! >5.1 ! >5.1 ! >5.1 >5.1 >5.1

2"

Dolby Digital (2/0)
Dolby Digital (3/2) Dolby Digital EX (3/3) DTS (2/0) DTS (3/2) DTS ES Matrix (3/3)

5.1 6.5.1 6.1

Dolby Digital (3/2) Dolby Digital EX (3/3) DTS (2/0) DTS (3/2) DTS ES Matrix (3/3) DTS ES Discrete (3/3) DTS 96/24
5.1 5.1< 2 5.1 5.1< 5.1< 5.1
DTS ES Discrete (3/3) 6.1 DTS 96/24 (3/2) 5.1
5.1< Indicates a 5.1 decode of 6.1 material (phantom back centre). >6.1 Indicates 6.1 output created by a 2.0 or 5.1 decode, postprocessed to 6.1. >7.1 Indicates 7.1 output created by a 2.0, 5.1 or 6.1 decode, postprocessed to 7.1. >6.1< Indicates 6.1 output created from 6.1 material, decoded as 5.1 and then post-processed to 6.1. >7.1< Indicates 7.1 output from 6.1 material decoded as 5.1 and then post processed to 7.1. # Mode used to force 6.1 or 7.1 EX or ES decoding where the decoder detects a disc as only 5.1 encoded but it is known to actually be EX/ES encoded (i.e. the EX or ES flags are missing from the disc). Note however that the processor cannot create ES/EX output from 5.1 encoded discs, this mode is only for when the flags are missing. To create 6.1/7.1 from a 5.1 disc use a post processed mode instead as shown above. % 7.1 decode of material with 6.1 encoded channels, two Mono Back Surrounds created from single Back Centre Surround Channel. " Stereo or Stereo + Sub, Press Stereo Modes Button to change. ! Digital Signal Processing created modes for signals with no encoding. Note: Bold entries are being output in their native resolution/format.
In all cases, pressing the Stereo Modes button always cycles round: Stereo Modes Stereo Stereo + Sub Output channels 2 2.1

Either native Stereo or downmix of DD/DTS 5.1/6.1 etc.
Pressing a mode button will first cause the 640R to scroll the current decode mode across the front panel display. Pressing the mode button again whilst text is scrolling on the display or within 4 seconds of it finishing will select and display the next available mode.
Decode modes - 6.1 speaker setup
Output Channels 2" 2 5.1 >6.1 # 6.5.1 >6.1 # 6.1 6.1 5.1
PCM + PLIIx Movie PCM + PLIIx Music PCM + PLIIx Game PCM + Neo:6 Cinema PCM + Neo:6 Music PassThru Movie Music Room Theatre Hall Dolby Digital (2/0) + PLIIx Movie Dolby Digital (2/0) + PLIIx Music Dolby Digital (2/0) + PLIIx Game Dolby Digital (3/2) + PLIIx Movie Dolby Digital (3/2) + PLIIx Music Dolby Digital (3/3) + PLIIx Movie Dolby Digital (3/3) + PLIIx Music DTS (2/0) + PLIIx Movie DTS (2/0) + PLIIx Music DTS (2/0) + Neo:6 Cinema DTS (2/0) + Neo:6 Music DTS (3/2) + PLIIx Movie DTS (3/2) + PLIIx Music DTS (3/2) + Neo:6 Cinema DTS (3/2) + Neo:6 Music DTS ES Matrix (3/3) + PLIIx Movie DTS ES Matrix (3/3) + PLIIx Music DTS ES Matrix (3/3) + Neo:6 Cinema DTS ES Matrix (3/3) + Neo:6 Music DTS ES Discrete (3/3) + PLIIx Movie DTS ES Discrete (3/3) + PLIIx Music DTS ES Discrete (3/3) + Neo:6 Cinema DTS ES Discrete (3/3) + Neo:6 Music
>6.1 >6.1 >6.1 >6.1 >6.1 >6.1 ! >6.1 ! >6.1 ! >6.1 ! >6.1 ! >6.1 ! >6.1 >6.1 >6.1 >6.1 >6.1 >6.1< >6.1< >6.1 >6.1 >6.1 >6.1 >6.1 >6.1 >6.1 >6.1 >6.1< >6.1< >6.1< >6.1< >6.1< >6.1< >6.1< >6.1<

Dolby Digital (3/2)

Dolby Digital (3/2) Dolby Digital (3/2) + EX Dolby Digital EX (3/3)

Dolby Digital EX (3/3)

DTS (2/0)

DTS (3/2)

DTS (3/2) DTS (3/2) + ES Matrix

DTS ES Matrix (3/3)

DTS ES Discrete (3/3) 6.1

DTS ES Discrete (3/3)

DTS 96/24 (3/2)
Decode modes - 7.1 speaker setup
PCM + PLIIx Movie PCM + PLIIx Music PCM + PLIIx Game PCM + Neo:6 Cinema PCM + Neo:6 Music PassThru Movie Music Room Theatre Hall Dolby Digital (2/0) + PLIIx Movie Dolby Digital (2/0) + PLIIx Music Dolby Digital (2/0) + PLIIx Game Dolby Digital (3/2) + PLIIx Movie Dolby Digital (3/2) + PLIIx Music Dolby Digital (3/3) + PLIIx Music Dolby Digital (3/3) + PLIIx Movie DTS (2/0) + PLIIx Movie DTS (2/0) + PLIIx Music DTS (2/0) + Neo:6 Cinema DTS (2/0) + Neo:6 Music DTS (3/2) + PLIIx Movie DTS (3/2) + PLIIx Music DTS (3/2) + Neo:6 Cinema DTS (3/2) + Neo:6 Music DTS ES Matrix (3/3) + PLIIx Movie DTS ES Matrix (3/3) + PLIIx Music DTS ES Matrix (3/3) + Neo:6 Cinema DTS ES Matrix (3/3) + Neo:6 Music DTS ES Discrete (3/3) + PLIIx Movie DTS ES Discrete (3/3) + PLIIx Music DTS ES Discrete (3/3) + Neo:6 Cinema DTS ES Discrete (3/3) + Neo:6 Music

Radio Data Systems (RDS) ProLogic IIx adjustments
The following adjustments affect Dolby Prologic II or IIx processing (or post-processing) in Music mode only. Movie and Game modes where available are preset as part of their specification to match the encoding or provide a specific effect. These adjustments have no affect in these modes.
Pro Logic Setup Panorama Centre Width Dimension : On : 0 : 3
RDS is a method for the transmission of additional information from local radio stations. It is only available in FM mode. RDS will only work if the local broadcasting stations have RDS transmission and the signal is strong enough. Press the Display button on the remote and go through the displayed functions. There are functions for PS, PTY, CT and RT: PS (Station Name) - current station name will be shown PTY (Program Type) - current name type of the program will be shown CT (Clock/Time) - current time from Radio Station will be displayed. Note: Clock/Time will be only transmitted from local radio station once a minute. If the Clock - Time is not available the message NO CT will appear briefly on the display.
RT (Radiotext) - some Text messages will be shown.
Panorama mode - A Prologic II/IIx mode that extends the front Stereo image to the surround sound speakers for a more enveloping experience. This mode can be either On or Off. Centre Width - Allows gradual adjustment of the centre image from being produced only by the Centre speaker (Setting 0) through levels of being spread between the centre channel and Left and Right speakers to finally being produced by the Front Left and Right speakers only (Phantom Centre, Setting 7). Useful in optimising the Front/Centre/Right soundfield for best integration of the 3 speakers. Best tuned by ear. Dimension - Adjusts the soundfield to be gradually shifted from the front of the room to the back to suit taste, speaker positioning and size of room. Setting 0 has the image furthest forward, 6 furthest back. All three adjustments are a matter of personal preference, experiment for the settings that you prefer if you are using PLII or PLIIx decoding.

Custom installation (C.I.) use

ENGLISH 27

Troubleshooting
A low hum or buzz sound can be heard
Power cords or lighting placed near this product. Analog inputs not connected securely.
The 640R features Control Bus inputs and outputs that allow un-modulated remote control commands (positive logic, TTL level) to be received electrically by the unit. These control commands are typically generated by custom installation (multi-room) systems or remote IR receiver systems. The Control Bus sockets are colour-coded orange.
Sound is not audible from one channel
Speaker connections disconnected. Speaker set to None in OSD setup menu.
An IR Emitter Input is also provided that allows modulated IR remote control commands to be received electrically by the unit. Commands on RS232C this input operate the unit only and are not looped out demodulated on the Control Bus Output. An RS232 port is also featured which allows the 640R to be controlled by C.I. systems. In addition the unit features 'direct' IR/Control codes as well as toggle codes for some of their features to simplify programming custom installation systems. Special direct On/Off and Mute commands can be accessed on the supplied remote control for teaching into C.I. systems as follows: 1. Press and hold the Standby/On button on the remote control. The remote first generates it's standby (toggle) command. Keep the button held down, after 12 seconds an AV receiver On command will be generated. If the button is kept held down for a further 12 seconds, an AV receiver Off command is generated. Repeat this procedure with the Mute, Sub On/Off, Stereo Mono and Tuner AM/FM buttons to send On/Off commands. The Tuner AM/FM button also provides unique FM and AM commands to allow switching to a specific band. A full code table and RS232 protocol for this product is available on the a Cambridge Audio website at www.cambridge-audio.com.
Sound cuts off when listening to music or there is no sound even though power is ON
Speaker impedance is less than prescribed for the 640R. The unit is not adequately ventilated and may be overheating.
Low bass or phasey response
Speaker polarity (+/-) of one or more speakers is reversed.
An unusual hissing noise is heard when listening to a radio broadcast in stereo, but not heard when listening in mono
A slight noise may be heard because the method used for modulation of FM stereo broadcasts is different than that used for mono broadcasts. Aerial quality also effects the level of hiss heard.
Noise is excessive in both stereo and monaural radio broadcasts
Poor location and/or direction of the antenna. Transmitting station is too far away.
No sound from the rear speakers
Source being played is not recorded in surround sound.

Reset/Back-up memory

Incognito Ready / A-BUS Ready B 2 A-BUS keypad outputs (2nd/3rd Zone) 3 IR Emitter outputs 2 Composite video outputs (2nd/3rd Zone) 1 External PSU input 24VDC Standby power consumption <10w Quiescent power consumption <70w Max power consumption Dimensions - H x W x D 1400w 150 x 425 x 420mm (inc all terminals & controls) 15kg (33lbs)
Audio Input Impedance / Sensitivity 47kOhms / 175mV or greater Digital Input Impedance 75ohms (Coaxial/SPDIF) Tone Control - Bass - Treble Tuner - FM mode - AM mode +/-10dB @ 100Hz +/-10dB @ 10kHz 87.5-108MHz, 75 ohm coaxial aerial 522-1629kHz, 300 ohm loop aerial

Weight

Decoding modes supported
PCM Stereo Linear PCM with or without digitally created Sub, 16-24 bit data, 44.1, 48 or 96kHz PLII Movie 5.1 PLII matrix decode optimised for movie material PLII Music 5.1 PLII matrix decode optimised for music material PLII Game 5.1 PLII matrix decode optimised for game material PLIIx Movie 6.1 /7.1 PLIIx matrix decode optimised for movie material PLIIx Music 6.1 /7.1 PLIIx matrix decode optimised for music material PLIIx Game 6.1 /7.1 PLIIx matrix decode optimised for game material Dolby Digital Stereo (2/0) + PLII Movie 5.1 PLII matrix decode of Dolby Stereo material Dolby Digital Stereo (2/0) + PLII Music 5.1 PLII matrix decode of Dolby Stereo material Dolby Digital Stereo (2/0) + PLII Game 5.1 PLII matrix decode of Dolby Stereo material Dolby Digital Stereo (2/0) + PLIIx Movie 6.1/7.1 PLIIx matrix decode of Dolby Stereo material Dolby Digital Stereo (2/0) + PLIIx Music 6.1/7.1 PLIIx matrix decode of Dolby Stereo material Dolby Digital Stereo (2/0) + PLIIx Game 6.1/7.1 PLIIx matrix decode of Dolby Stereo material Dolby Digital (Up to) 5.1 digital surround sound Dolby Digital + PLIIx Movie PLIIx Movie post process of DD 5.1 giving 6.1 or 7.1 (7.1 has mono back surrounds) Dolby Digital + PLIIx Music PLIIx Music post process of DD 5.1 giving 6.1 or 7.1 (7.1 has mono back surrounds) Dolby Digital EX 6.1 or 7.1 (7.1 has mono back surrounds) decode of 6.1 Dolby Digital EX material DTS Neo:6 Cinema 5.1/6.1/7.1 Neo:6 matrix decode (6.1 source material) 5.1 decode has phantom rear centre, 7.1 decode has mono back surrounds)
Video Levels /Impedance - Composite (CVBS) - S-Video (S-VHS) V V - Component 1Vp-p / 75ohm Y 1Vp-p / 75ohm C 0.286 Vp-p / 75ohm Y 1Vp-p / 75ohm Cb/Cr 0.75Vp-p / 75ohm Pb/Pr 0.75Vp-p / 75ohm

Azur 640R Serial Control Protocol V1.13

1.1 RS232 Protocol

The protocol is accessed via COM1 i.e. the rear panel RS232C port.
Header # byte num: 1 Command Group 1 to , 1 Command Number 01 to , 1 Command Data XXXX XX Footer CR 1
Notes: 1) All data consists of ASCII bytes. 2) Settings for RS232 comm port are 9600,N,8,1 with no handshaking. 3) CR is carriage return, ASCII value 13 decimal.

Command Groups

Commands are split into the following groups:
Command Group 11 Description Amplifier Commands Source Commands Tuner Commands Audio Processing Commands Version Commands Replies from Amplifier Commands Replies from Source Commands Replies from Tuner Commands Replies from Audio Processing Commands Replies from Version Commands Error Messages
Gallery Court, Hankey Place, London SE1 4BB England Tel: +44 (0)2200 Fax: +44 (0)2233 Web: www.cambridge-audio.com

Commands and Messages

1.4.1 Group 1 - Amplifier Commands
Command Number 19 Command Description Power State Volume Up Volume Down Bass Up Bass Down Treble Up Treble Down Sub On Sub Off Set LFE trim Mute State Dynamic Range Set OSD On OSD Off OSD Up OSD Down OSD Left OSD Right OSD Enter Command Data 0 - Standby, 1 - On No Data No Data No Data No Data No Data No Data No Data No Data 0 = 0db, 1 = -1db -10 = -10dB 00 - Off, 01 - On 0 - 0/4, 1 - 1/4, 2 - 2/4, 3 - 3/4, 4 - 4/4 No Data No Data No Data No Data No Data No Data No Data Example #1,01,0\r - Put 640R in standby #1,02\r - Volume up #1,03\r -Volume down #1,04\r - Bass up #1,05\r - Bass down #1,06\r - Treble up #1,07\r - Treble down #1,08\r - Sub woofer on #1,09\r - Sub woofer Off #1,10, 03\r - LFE trim set to -3dB #1,11,00\r - 640R mute off #1,12, 02\r - Set dynamic range limit to 2/4 #1,13\r - OSD On #1,14\r - OSD Off #1,15\r - OSD up #1,16\r - OSD down #1,17\r - OSD Left #1,18\r - OSD Right #1,19\r - OSD Enter
1.4.2 Group 2 - Source Commands
Command Number 01 Command Description Input Select Command Data 00 = Tuner, 01 - DVD, 02 - Video 1, 03 Video 2, 04 - Video3, 05 - Rec 1,06 - Aux, 07 - CD, 08 - Rec 2, 09 - ####, 10 - 7.1 Direct In No Data No Data 00 - analogue, 01 - Digital 0 - S Video, 1 - Component, 2 - Composite Example #2,01,02\r - Select Video 1
Input Select Up Input Select Down Set input mode Set Video Source
#2,02\r - Next input up #2,03\r -Next input down #2,04,01\r - digital source selected #2,05,01\r - Component video source
1.4.3 Group 3 Tuner Commands
Command Number 09 Command Description Tuner Stereo/Mono Frequency Up Frequency down Up Down Tuner Mode Tuner Search Stop Tuner Auto Search Tuner Band Command Data 0 - Stereo, 1 = Mono No Data No Data No Data No Data 1 - Frequency up/down, 2 - search up/down, 3 - Preset up/down No Data No Data 0 - FM, 1 = AM 1- News, 2-Affairs, 3-Info, 4-Sport, 5Educate, 6-Drama, 7-Culture, 8-Science, 9Varied, 10-Pop, 11-Rock, 12-MOR, 13Light, 14-Classics, 15-Other 1 - preset 1, 2 - preset 2,. 15 - preset - preset 1, 2 - preset 2,. 15 - preset 15 1-Frequency, 2-Program name, 3-Program Type, 4-Clock time, 5-Radiotext No Data No Data No Data No Data Example #3,01,01\r - tuner in mono #3,02\r - Frequency up #3,03\r - Frequency down #3,04\r - Tuner up #3,05\r - Tuner down #3,06,03\r - Tuner up/down control presets #3,07\r - Tuner search stop #3,08\r - Tuner auto search #3,09,01\r - tuner in AM mode
Tuner PTY select Store Station Get Preset Tuner Display mode Get Frequency Get Station name Get PTY Stop PTY Select
#3,10,11\r - PTY Rock selected #3,11,12\r - Store current frequency in preset 12 #3,12,6\r - Set tuner to preset 6 #3,13, 04\r - Display in clock time mode #3,14\r #3,15\r #3,16\r #3,17\r
1.4.4 Group 4 - Audio Processing Commands
Command Number 05 Command Description Set Audio to Stereo Set PLII/Neo/DSP DD/DTS Get current PLII/Neo/DSP mode Get current DD/DTS mode Command Data 00 = Stereo, 01 = Stereo+ SW No Data No Data No Data No Data Example #4,01,01\r - Audio set to stereo mode plus sub #4,02\r - cycles to next mode (same as pressing the PLII/Neo/DSP button) #4,03\r - cycles to next mode (same as pressing the DD/DTS button) #4,04,\r #4,05\r
1.4.5 Group 5 - Version Commands
Command Number Command Description Get Main Software Version Get Protocol Version Command Data No Data No Data Example #5,01,\r - Get software version #5,02,\r - Get protocol version
1.4.6 Group 6 - Replies from Amplifier Commands
Command Number 19 Command Description Power State Volume Up Volume Down Bass Up Bass Down Treble Up Treble Down Sub On Sub Off Set LFE trim Mute State Dynamic Range Set OSD On OSD Off OSD Up OSD Down OSD Left OSD Right OSD Enter Command Data 0 - Standby, 1 - On -90 to 00 (where -90 = mute, 00 = max volume -90 to 00 (where -90 = mute, 00 = max volume -10 to 10 -10 to 10 -10 to 10 -10 to 10 No Data No Data 0 = 0db, 1 = -1db -10 = -10dB 0 - Off, 1 - On 0 - 0/4, 1 - 1/4, 2 - 2/4, 3 - 3/4, 4 - 4/4 No Data No Data No Data No Data No Data No Data No Data Example #6,01,0\r - Put 640R in standby #6,02,-16\r - Vol = -16dB #6,03,-16\r - Vol = -16dB #6,04,-6\r - Bass = -6db #6,05,-6\r - Bass = -6db #6,06,-7\r - treble = -7db #6,07,-7\r - treble = -7db #6,08\r - Sub woofer on #6,09\r - Sub woofer off #6,10, 03\r - LFE trim set to -3dB #6,11,00\r - 640R mute off #6,12, 02\r - Set dynamic range limit to 2/4 #6,13\r - OSD On #6,14\r - OSD Off #6,15\r - OSD up #6,16\r - OSD down #6,17\r - OSD Left #6,18\r - OSD Right #6,19\r - OSD Enter

1.4.7 Group 7 - Replies from Source Commands
Command Number 01 Command Description Input Select Command Data 1 - DVD, 2 - Video 1, 3 - Video 2, 4 Video3, 5 - Rec 1, 6 - Aux, 7 - CD, 8 - Rec 2, 9 - Tuner, 10 - 7.1 Direct In No Data No Data 0 - analogue, 1 - Digital 0 - S Video, 1 - Component, 2 - Composite Example #7,01,2\r - Video 1 selected
#7,02\r - Next input up #7,03\r -Next input down #7,04,01\r - digital input selected #7,05,02\r - Composite video source selected
1.4.8 Group 8 - Replies from Tuner Commands
Command Number 09 Command Description Tuner Stereo/Mono Frequency Up Frequency down Up Down Tuner Mode Tuner Search Stop Tuner Auto Search Tuner Band Command Data 0 - Stereo, 1 = Mono No Data No Data 1 - command complete, 2 - tuner searching 1 - command complete, 2 - tuner searching 1 - Frequency up/down, 2 - search up/down, 3 - Preset up/down xxx.xx No Data 0 - FM, 1 = AM 1- News, 2-Affairs, 3-Info, 4-Sport, 5Educate, 6-Drama, 7-Culture, 8-Science, 9Varied, 10-Pop, 11-Rock, 12-MOR, 13Light, 14-Classics, 15-Other, 16-Searching in progress, 17-Search failed 1 - preset 1, 2 - preset 2,. 15 - preset - preset 1, 2 - preset 2,. 15 - preset 15 1-Frequency, 2-Program name, 3-Program Type, 4-Clock time, 5-Radiotext 1-Frequency, 2-Program name, 3-Program Type, 4-Clock time, 5-Radiotext xxx.xx xxxxxxxx Example #8,01,01\r - tuner in mono #8,02\r - Frequency up #8,03\r - Frequency down #8,04,02\r - Tuner searching #8,05,01\r - Tuner down executed #8,06,03\r - Tuner up/down control presets #8,07,09525\r - Current frequency is 95.25MHz #8,08\r - Tuner auto search #8,09,01\r - tuner in AM mode
Tuner PTY select Store Station Get Preset Tuner Display mode Tuner Display mode Get Frequency Get station name
#8,10,11\r - PTY Rock selected #8,11,12\r - Store current frequency in preset 12 #8,12,6\r - Set tuner to preset 6 #8,13, 04\r - Display in clock time mode #8,14, 04\r - Display in clock time mode #8,14,09525\r - Current frequency is 95.25MHz #8,15,Radio666\r - Current station name is Radio666. If no RDS station name availible, return with string of stars, i.e. ********

Get PTY Stop PTY Select

0-No Pty,1- News, 2-Affairs, 3-Info, 4-Sport, 5-Educate, 6-Drama, 7-Culture, 8-Science, 9-Varied, 10-Pop, 11-Rock, 12-MOR, 13Light, 14-Classics, 15-Other No Data

#8,16,11\r - Current PTY is Rock Music #8,17\r
1.4.9 Group 9 - Replies from Audio Processing Commands
Command Number Command Description Set Audio to Stereo Set PLII/Neo/DSP Command Data 00 = Stereo, 01 = Stereo+ SW xxxxxxxx Example #9,01,01\r - Audio set to stereo mode plus sub #9,02, PCM + PLIIx Movie \r - Describes the mode it's just switched to exactly as on front panel #9,03, Dolby Digital (2/0) \r - Describes the mode it's just switched to, exactly as displayed on the front panel #9,04, PCM + PLIIx Movie \r - Describes the current mode #9,05, Dolby Digital (2/0) \r - Describes the current mode
DD/DTS Get current PLII/Neo/DSP mode Get current DD/DTS mode
xxxxxxxx xxxxxxxx xxxxxxxx
1.4.10 Group 10 - Replies from Version Commands
Command Number Command Description Get Main Software Version Protocol Version Command Data X.X X.X Example #10,01,1.2\r - Software is version 1.2 #10,03,1.6\r - Protocol is version 1.6
1.4.11 Group 11 - Error Messages
Command Number 03 Command Description Command Group Unknown Command Number in Group Unknown Command Data Error Command Data No Data No Data No Data Example #5,01,\r - Command group error #5,02,\r - Command number error #5,03,\r - Command data error
Information in this document has been carefully checked for accuracy; however, Cambridge Audio's policy is one of continuous improvement, therefore design and specifications are subject to change without prior notice. If you notice any errors please feel free to email us at: support@cambridgeaudio.com. This document contains proprietary information protected by copyright. All rights are reserved. No part of this document may be reproduced by any mechanical, electronic or other means, in any form, without prior written permission of the manufacturer. Copyright Cambridge Audio Ltd 2007