Cambridge-640R-sur-sm维修电路原理图.pdf

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1、Gallery Court Hankey Place London SE1 4BB UK - Tel: +44 (0)20 7940 2200 Fax: +44 (0)20 7940 2233 AP21900/1 640RIssue Date: 21st May 2007 SERVICE MANUAL SPECIFICATIONS: Audio Recording Video Outputs 1 Composite, 1 S-Video Power Output 2 x 120 watts rms per channel 8 ohms (two channels driven) Other C

2、onnections 1 ” / 6.35mm Headphone Output (32 to 600 ohms recommended) 7 x 100 watts rms per channel 1 Control Bus Input / Output 8 ohms (all 7 channels driven) 1 IR Emitter In 1 RS232C Total Harmonic Distortion 0.006% 1kHz 1 IEC type mains inlet Crosstalk 90dB A weighted Standby Power Consumption 10

3、w Audio Input Impendence / Sensitivity 47kOhms / 175mV or greater Quiescent Power Consumption 70w Digital Input Impendence 75ohms (Coaxial / SPDIF) Max Power Consumption 1400w Tone Control Bass +/- 10dB 100Hz Dimension H x W x D 150 x 425 x 420mm Treble +/-10dB 10kHz (Inc all terminals & controls)Tu

4、ner Weight 15kg (33lbs) FM mode 87.5-108MHz, 75 ohm coaxial aerial AM mode 522-1629kHz, 300 ohm loop aerial Decoding Modes Supported PCM Stereo Linear PCM with or without digitally Video created Sub, 16-24 bit data, 44.1, 48 or 96kHzVideo Levels / Impendence -Composite (CVBS) 1Vp-p / 75 ohm PLII Mov

5、ie 5.1 PLII matrix decode optimised for movie material -S-Video (S-VHS) Y 1Vp-p 75 ohm C O 286 Vp-p / 75 ohm PLII Game 5.1 PLII matrix decode optimised for game material -Component Y 1p-p / 75ohm PLIIx Movie 6.1/7.1 PLIIx matrix decode optimised for movie Cb/Cr 0.75Vp-p / 75ohm material Pb/Pr 0.75Vp

6、-p / 75ohm PLIIx Music 6.1/7.1 PLIIx matrix decode optimised for music HDMI materialTransfer of all resolutions up to and including 1080p 50/60Hz (1920 x 1080) supported, with HDCP handshaking. PLIIx Game 6.1/7.1 PLIIx matrix decode optimised for game material GeneralArchitecture Crystal CS43122 24

7、Bit 192kHz Dolby Digital Stereo (2/0) + PLII Movie capable DAC for Front Left & Right 5.1 PLII matrix decode of Dolby Stereo material Dolby Digital Stereo (2/0) + PLII Music Crystal CS52526 24 Bit 192kHz 5.1 PLII matrix decode of Dolby Stereo material Capable CODEC for surround channels + Dolby Digi

8、tal Stereo (2/0) + PLII Game24 Bit 2 channel A/D conversion. 5.1 PLII matrix decode of Dolby Stereo material Crystal CS43122 32 bit DSP Dolby Digital Stereo (2/0) + PLIIx Movie 6.1/7.1 PLIIx matrix decode of Dolby Stereo material Dolby Digital Stereo (2/0) + PLIIx MusicAudio Inputs 8 Line Level Anal

9、og 6.1/7.1 PLIIx matrix decode of Dolby Stereo material Tuner (FM / AM) 7.1 Analog Input Dolby Digital Stereo (2/0) + PLIIx Game 5 Digital Co-axial, 6 Digital Optical 6.1/7.1 PLIIx matrix decode of Dolby Stereo material Video Inputs 5 Composite, 5 S-Video Dolby Digital (Up to) 5.1 digital surround s

10、ound 3 Component Video, 3 HDMI Dolby Digital + PLIIx Movie PLIIx Movie post process of DD5.1 giving 6.1 orMain Audio Outputs 7 Amplified Speaker Outputs 7.1 (7.1 has mono back surrounds) 7.1 Preamp Outputs Dolby Digital + PLIIx Music PLIIx Music post process of DD 5.1 giving 6.1 or 7.1 (7.1 has mono

11、 back surrounds) Main Video Outputs 1 Composite, 1 S-Video Dolby Digital EX 6.1 or 7.1 (7.1 has mono back surround) decode of 1 Component Video, 1 HJDMI 6.1 Dolby Digital EX material DTS Neo 6 Cinema 5.1/6.1/7.1 Neo 6 matrix decode (6.1 source Recording Audio Outputs 2 Line Level Analog materials) 5

12、.1 decode has phantom rear 2 Digital Co-Axial, 2 Digital Optical centre, 7.1 decode has mono back surround) RadioFans.CN 收音机爱 好者资料库640R SERVICE MANUALTABLE OF CONTENTS Front Panel Controls 4Rear Panel Connections 5Remote Control 6Block Diagram 7Exploded Diagram 8Exploded Diagram Parts List 9-10 Serv

13、iceable Parts List 11 Mains Transformer & Main Board P.S.U Circuit Diagram 12 Main board (Inputs) Circuit Diagram 13 Power Amplifiers Circuit Diagram 14 Main Board PCB Layout 15 Video Board Direct Input / Pre-outs Circuit Diagram 16 Video Board Coaxial Input / Outputs Circuit Diagram 17 Video Board

14、(YUV) Circuit Diagram 18 Video Board (Composite & S-Video) Circuit Diagram 19 Video Board OSD Circuit Diagram 20 Video Board Rescaling / Conversion Circuit Diagram 21 Optical Board Circuit Diagram 22 Video / Co-axial / Optical PCB Board Layout (Top Side) 23 Video / Co-axial / Optical PCB Board Layou

15、t (Bottom Side) 24 Power Amplifier 1 Circuit Diagram 25 Power Amplifier 2 Circuit Diagram 26 Power Amplifier 1 & 2 PCB Board Layout 27 Decoder Circuit Diagram 28-30 PSU (on decoder) Circuit Diagram 31 Decoder MCU Circuit Diagram 32 Decoder PCB Board Layout (Top Side) 33 Decoder PCB Board Layout (Bot

16、tom Side) 34 HDMI Circuit Diagram 35 HDMI PCB Board Layout (Top Side) 36 HDMI PCB Board Layout (Bottom Side) 37 Fuse / RS232 / Speaker Board Circuit Diagram 38 Fuse / RS232 / Speaker Board Layout 39 Abus Zone Circuit Diagram 40 Abus Zone Board Layout (Top Side) 41 Abus Zone Board Layout (Bottom Side

17、) 42 Display Board & Volume Encoder Circuit Diagram 43 Display PCB Board Layout 44 2RadioFans.CN 收音机爱 好者资料库 AV3 Circuit Diagram 45 AV3 Board Layout 46 Bill of Material 47-57 IC Details 58-59 Software Upgrade Procedure 60-62 3Cambridge Azur 640R AV ReceiverFront Panel Controlsazur640RAV ReceiverVolum

18、ePhonesTuningMode/StoreDVDVideo 1StereoModesDolby Digital/DTS SurroundModesPro Logic/Neo/DSP SurroundModesVideoInput TypeAudioVideoS-VideoAudioInput TypeVideo 2Recorder 1AuxCDRecorder 27.1 Direct+Standby/OnAnalogStereo DirectOpticalTuner FM/AMVideo 3LRDigital Processing OptionsMuteStandby/OnSwitches

19、 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.PhonesAllows for the connection of stereo headphones with a 6.35mm/ Jackplug. Headphones with an impedance of between

20、 32 and 600 ohms arerecommended. Note: Plugging in headphones will automatically mutethe main and pre-amp outputs and select a 2-channel stereo down-mixto be created for headphone use.Tuning +/-Used to tune FM frequencies and skip presets in Tuner mode.Mode/StorePress to cycle between Tuner modes an

21、d for storing presets (refer to theOperating Instructions of this manual for more information).Tuner FM/AMPress to select the tuner for output through the 640R. Once in Tunermode also use this button to switch between FM and AM modes.DisplayDisplays the status of the unit. Also receives IR commands

22、from thesupplied Azur remote control. A clear unobstructed line of sight betweenthe remote control and the sensor is required.DVDPress to select the source equipment connected to the DVD input.Video 1Press to select the source equipment connected to the Video 1 input.Video 2Press to select the sourc

23、e equipment connected to the Video 2 input.Recorder 1Press to select the recording device connected to the Recorder 1 input.AuxPress to select the source equipment connected to the Aux input.CDPress to select the source equipment connected to the CD input.Recorder 2Press to select the recording devi

24、ce connected to the Recorder 2 input.7.1 DirectPress to select a 7.1, 6.1 or 5.1 source (DVD-A or SACD player etc)connected to the 7.1 Direct In sockets.Note: The 640R remembers the audio and video input type andprocessing mode for each individual source input. These are recalledeach time a source i

25、s selected.Audio input typePress this button to toggle between analog or digital (optical/coaxial)input types for the currently selected source input.Stereo modesPress to listen to a source in either digitally processed stereo or stereoand sub modes.Pro Logic/Neo/DSP surround modesPress to select be

26、tween various Pro Logic II/IIx, DTS Neo:6 effects formatrix encoded analog or digital material or for post-processing DD/DTSmaterial (Note: The 640R is unable to auto-detect this kind of sourcematerial as it does not include embedded encoding type flags somanual selection is required). Also selects

27、various DSP createdsurround sound modes for uncoded stereo sources.Dolby Digital/DTS surround modesPress to select Dolby Digital or DTS surround modes (with suitablyencoded digital source material). These modes can only be decodedfrom digital audio sources (via Coaxial or Optical inputs).Video input

28、 typePress to select the video input type (Composite, S-Video or ComponentVideo) you wish to use for the current source input.Analog stereo directPress to listen directly to the analog inputs for the current source with noanalogtodigitalorDSPprocessingforhighestpossiblestereosoundquality.VolumeUseto

29、increase/decreasethelevelofthesoundfromtheoutputsofthe640R.MutePress to mute the sound from the main and pre-amp outputs of the640R. Press again to cancel mute.Video 3 source buttonPress to select a video camera recorder/video games consoleconnected to the Video 3 input sockets.Video 3 input sockets

30、Connect a video camera recorder/video games console to the 640R.Audio/Video and digital optical inputs are provided.1235124515161718197891011121320212246151617181920212223243142324678109111213144Cambridge Azur 640R AV ReceiverRear Panel ConnectionsUpdate/NormalFor dealer use only - Switches the 640R

31、 between normal (default) modeand software update mode. Do not change the mode to update or makeconnections to it in update mode as damage may result!RS232CUsed for control of the 640R in Custom Install situations. A full protocolis available for the 640R on our website.FM/AM antennaAll tuner antenn

32、a connections are made here. Refer to the AntennaConnections section of this manual for more information.HDMIInputs and output to a suitable TV/Monitor. The HDMI inputs can beassigned in the OSD to the DVD, Video 1, Video 2 or Rec 1 sources, seelater section.Video 1/2, Recorder 1/2, DVD, AuxPlease r

33、efer to the connection diagrams later in this manual for moreinformation on these inputs and outputs. TV/Mon outputsS-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 tel

34、evisionset.Normally only one type of connection will be used. These outputs arealso used to view the 640Rs On-Screen Display setup menus.Heat tunnel vent grilleAllows cooling of internal circuitry. DO NOT OBSTRUCT!Component Video inputs (DVD, Video 1/2, Recorder 1)Connect the Component Video outputs

35、 from the source equipment.Note: The preferred connection method for video inputs or outputs isalways Component Video then S-Video then Composite Video thenHDMI. HDMI and Component Video sources often also supportProgressive Scan which gives better picture quality if supported by bothyour DVD player

36、 and TV.7.1 Direct InConnect to the output terminals of a DVD-A, SACD player or other5.1/6.1/7.1 analog source.7.1 Preamp OutConnect to the 5.1/6.1/7.1 channel input terminals of another amplifiersystem, separate power amps, subwoofer or active loudspeakers.A-BUS Ready/Incognito Ready multi-room out

37、putsPSU In - Connect an Incognito PS5 to supply power to the connectedmulti-room keypads/speakers.Keypad 1/2 - Connect one or two Incognito A-BUS KP10 keypads (orother A-BUS compatible keypads) or AS10 Active Ceiling Speakers usingCAT5/5e cable, allowing 2nd/3rd zone multi-room capability.IR - Three

38、 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 moreinformation on connections and set-up.Emitter InAllows modulated IR commands from multi-room systems or IR repeatersystems

39、 to be received by the 640R. Commands received here are notlooped out of the Control Bus. Refer to the Custom Installation sectionfor more information.Control BusIn - Allows un-modulated commands from multi-rooms systems or othercomponents to be received by the unit.Out - Loop out for control bus co

40、mmands to another unit.Speaker terminalsConnect to loudspeakers with an impedance of between 4-8 ohms. 7.1,6.1, 5.1 or less connections can be made.Mains power leadOnce you have completed all connections, plug the AC power lead intoan appropriate mains socket. The AV receiver is now ready for use.Po

41、wer On/OffSwitches the unit on and off.azur 640R AV ReceiverFrontRightFrontLeftSurroundLeftSurroundBack Left/Surround BackCentreSurroundRightSurroundBack RightAM 300TunerFM 75ControlBusInInEmitterOutIR1IR2PSU 24V DC InIR312Keypad 1Keypad 2DVDSRSBRSWLSLSBL/SBYCb/PbCr/PrYCb/PbCr/PrYCb/PbCr/PrYCb/PbCr/

42、PrC7.1 Direct In7.1 Preamp OutLRLRSerial No. label fitted on undersideMax Power Consumption: 1400WPower Rating: 230V AC 50HzRSRSBRLSLSBL/SBCRTV/Mon OutVideo 1Video 2Speaker Impedance 4-8 OhmsMulti-RoomRS232CInInInInInn ItuOn IOutLRVideo 2Video 1Recorder 1DVDRec 2AuxCDRec 2CompositeS-VideoDigital Opt

43、icalDigital Co-axialCompositeS-VideoDigital OpticalDigital Co-axialVideo OutThis device complies withpart 15 of FCC rulesTV/Mon OutPower ACPowerOnOffManufactured in anISO9002 approved facilityCaution Risk of electric shock. Do not open. Do not obstruct ventilation.Avis Risque de choc electrique. Ne

44、pas ouvrir. Ne pas obstruer la ventilation.Achtung Vorm ffnen des grates. Netzstecker ziehen. Ventilation nicht verschlieen.Designed in London, Englandwww.cambridge-International Patent Pending LeisureTech Electronics Pty LtdUpdateNormalIn 2In 3OutIn 1HDMI1 .51 .61 . 7SWUseapprovedPSU onlyComponentR

45、ecorder1112346589101112131415162345671415891011121367165Cambridge Azur 640R AV ReceiverRemote ControlTune / Left & RightPress the right arrow to increase tuner frequency/changepreset.Presstheleftarrowtodecreasetunerfrequency/change preset. Also used to scroll left/right inthe OSD setup menus.EnterUs

46、ed in the OSD setup menus.On-Screen Display (OSD)Press to turn on and off the on-screen set-up menus whenconnected to a monitor/screen via Composite, S-video orComponent connections.Bass/Treble Press for bass/treble adjustment, using the Volumeup/down buttons. Note: Bass/Treble is disabled in analog

47、stereo direct and 7.1 direct modes.7.1 DirectSelects the 5.1/6.1/7.1 direct input.Audio In Type Switches the 640R between analog and digital inputs forthe currently selected source.Video In TypeSelects Composite video, S-Video or Component video asthe analog video input type for the current source(A

48、dditionally HDMI can also be assigned in the OSDmenu).Tuner AM/FM, DVD, Video 1, Video 2, Rec 1,Aux, CD, Rec 2Press the corresponding button to change the inputsource. Pressing the Tuner AM/FM button a second timetoggles between AM and FM modes.The above button descriptions are naturally brief. Plea

49、serefer to the Operating Instructions section of thismanual for more information on the relevant functionsimplemented.The 640R is supplied with an Azur Navigator remotecontrol. Insert the supplied AAA batteries to use. For fulldetails of the various adjustment functions available fromthe remote, ref

50、er to the later sections of this manual.Standby/OnSwitches the unit between Standby mode and On.Analog DirectDirectly selects a stereo analog input for the currentsource with no A/D conversion or DSP processing.Stereo ModesSelects Stereo or Stereo + Sub modes for Analog or Digitalsources (digitally