HarmanKardon-AVR55-avr-sm维修电路原理图.pdf

harman/kardonAVR55AUDIO/VIDEOAC-3 PRO-LOGIC RECEIVERSERVICE MANUALharman/kardon, Inc.250 Crossways Park Dr.Woodbury, New York 11797RadioFans.CN 收音机爱 好者资料库CONTENTSSPECIFICATIONS.2FRONT/REAR PANEL CONTROLS & CONNECTIONS .3SET-UP/OPERATION GUIDE.12TROUBLESHOOTING .26BLOCK DIAGRAM (UNTILED & TILED)27EXPLODED VIEW .32MECHANICAL PARTS LIST .34ELECTRICAL PARTS LIST.35SCHEMATICS AMPLIFIER (UNTILED & TILED).44SCHEMATICS FRONT PCB (UNTILED & TILED).49SCHEMATICS INPUT PCB (UNTILED & TILED).54SCHEMATICS MAIN PCB (UNTILED & TILED).59SCHEMATICS PRE-IN PCB (UNTILED & TILED).64SCHEMATICS AC-3 PCB (UNTILED & TILED).69SCHEMATICS TUNER PCB (UNTILED & TILED).74WIRING DIAGRAM (UNTILED & TILED).79RadioFans.CN 收音机爱 好者资料库Technical SpecificationsAVR55 120 volt Audio SectionStereo Mode Continuous Average Power (FTC)65 Watts per channel 20Hz20kHz: 0.07% THD, both channels driven into 8 OhmsFive-Channel Surround Mode Power Per Individual ChannelFront L&R channels:55 Watts per channel, 0.07% THD, 20Hz20kHz into 8 ohmsCenter channel:55 Watts, 20Hz20kHz into 8 ohmsSurround channels:55 Watts per channel, 40Hz20kHz into 8 ohmsInput Sensitivity/ImpedanceLinear (High Level)200mV/32 KohmsPhono3mV/47KohmsSignal-to-Noise Ratio (IHF-A)Linear (CD)95dBPhono73dBSurround System Adjacent Channel SeparationAnalog Decoding (Pro Logic, etc.)40dBDolby Digital (AC-3)55dBFrequency Response 1W (+0, 3dB)8Hz100kHzHigh Instantaneous Current Capability (HCC)35 AmpsTransient Intermodulation Distortion (TIM)UnmeasurableRise Time16secSlew Rate40 V/secFM Tuner SectionFrequency Range87.5108 MHzUsable SensitivityIHF 1.3 V/14.2dBfSignal-to-Noise RatioMono/Stereo 70/68dBDistortionMono/Stereo 0.3/0.5%Stereo Separation1kHz, 40dBSelectivity400kHz 65dBImage Rejection98MHz 65dBTuner Output Level1kHz, 75kHz Dev 500mVAM Tuner SectionFrequency Range5201710kHzSignal-to-Noise Ratio45dBUsable SensitivityLoop 500VDistortion1kHz, 50% Mod 0.8%Selectivity9kHz, 25dBGeneralPower RequirementAC 120V 60HzPower Consumption60W idle, 325W maximum (2 channels driven)Dimension (Max)Width17.4 inches (440 mm)Height6.3 inches (160 mm)Depth16.0 inches (406 mm)Weight32.6 lbs. (14.8 kg)Depth measurement includes knobs, buttons and terminal connections.All features and specifications are subject to change without notice.*Trademarks of Dolby Laboratories.DTS is a trademark of Digital Theater Systems. UltraStereo is a trademark of UltraStereo Corp.2Front Panel ControlsAVR55 120 volt 1 Main Power Switch2 System Power Control3 Power Indicator4 Memo Button5 Headphone Jack6 FM Mode7 Speaker Switch8 AM/FM9 Tuning Button) CD! Tape 1/Monitor Tape 2# Phono$ TV% DVD Input Vid 1& Vid 1 Rec* Vid 2( Vid 2 Front/Rear Speaker Mode Selector Surround Off Bass Control Surround Mode Treble Control Digital Mode Selector Balance Control Digital Input Selector Night Mode Video 2 Inputs Contour Volume Control Subwoofer Level Adjust3 3Center Level Adjust3 4Surround Level Adjust3 5Information Display3 6Remote Sensor Window3 7Numeric Keys67890 AVR 55SpeakerHeadphonesTUNEVID 1 REC.12345SPK. MODESURR.OFFFRT/REARVID 2SURR. MODENIGHTVolumeContourBassTrebleBalanceMEMODVDVID 1DIGITAL INPUTDIGITAL Subwoofer LevelSurround LevelCenter LevelFM MODEAM/FMCDT MONPHONOTVVIDEO 2RVideoLMaxMinMaxMinL Audio RPowerRFCOAX OPTT 2DIGITAL HALLTHEATERSTADIUMCHURCHSLEEPSOURCEVID 2DVDTVPRO LOGICVID 1 RECCONTOURSTEREOTUNEDAUTOMEMORYPRESETT MON3 STEREO-4)$*6 825 79#%&(!133Front Panel ControlsAVR55 120 volt 1 Main Power Switch: Press thisbutton to apply power to the AVR55.When the switch is pressed the unitis placed in a Standby mode, asindicated by the amber LED 3 sur-rounding the System Power control2. This button MUST be pressed into operate the unit regardless of thestatus of the Power Switch at thebottom of the front panel. To turn theunit off and prevent the use of theremote control, this switch should bepressed until it pops out to extendfrom the front panel so that the word“OFF” may be read at the top of theswitch.NOTE: In normal operation thisswitch may be left in the “on”position.2 System Power Control: Whenthe Main Power Switch 1 ispressed in, press this button to turnon the AVR55, press it again to turnthe unit off. Note that the PowerIndicator surrounding the switch 3will turn green when the unit is on.3 Power Indicator: This LED willilluminate in amber when the unit isin the Standby mode, to signal thatthe unit is ready to be turned on.When the unit is in operation theindicator will turn green.4 Memo Button: This button isused to enter settings for speakermodes, tuner presets and delay time after making the appropriateselection.5 Headphone Jack: This jack maybe used to listen to the AVR55s out-put through a pair of headphones.Be certain that the headphoneshave a standard 14 stereo phoneplug.6 FM Mode: Press this button toselect the stereo or mono mode forFM tuning. In the STEREO mode aSTEREOindicator will illuminate inthe information display, and stereoreception will be provided when sta-tions are transmitting stereo signals.In the MONO mode the left and rightsignals from stereo broadcasts willbe mixed together and reproducedthrough all channels. Select MONOfor better reception of weak signals. 7 Speaker Switch: This switchcontrols the front left/right speakers.For normal operation it is pressed inand sound is heard through the frontspeakers. To silence the frontleft/right speakers, push the buttononce until it is in the “out” position.When the front speakers are turnedoff sound will continue to be heardthrough the center and rear speakersand the headphone jack.8 AM/FM: Press this button toselect the tuner as the AVR55s inputsource. When it is first pressed thelast station tuned will appear. Pressit again to change between AM andFM bands.9 Tuning Button: Press the left side of the button to tune lowerfrequency stations and the right sideof the button to tune higher frequencystations. When a station with a strongfrequency is tuned, the TUNEDindicator will illuminate in theInformation Display 3 5. A brief (1/2 second) press of the button willmanually tune to the next frequencyincrement, while pressing and hold-ing the button for a longer period willautomatically tune to the next stationwith a signal strong enough foracceptable reception.) CD: Press this button to selectthe device connected to the CDInput jacks d as the listeningsource.! Tape1/Monitor: Press this buttonto select the device connected tothe Tape 1 Play jacks as the lis-tening source. The T-Mon indicatorK will illuminate to indicate that theTape Monitor has been selected,while the input being monitored willremain in the Main InformationDisplay F. Tape2: Press this button toselect the device connected to theTape 2 Play jacks as the listeningsource.# Phono: Press this button toselect the Phono Input e as thelistening source.$ TV: Press this button to select thedevice connected to the TV/Auxjacks as the listening and viewingsource.% DVD Input: Press this button toselect the device connected to theDVD Play jacks as the listeningand viewing source. Vid 1: Press this button to select the device connected to theVideo 1 In jacks as the listeningand viewing source.& Vid 1 Rec: Press this button to select the device that will berecorded by the device connectedto the Video 1 Out jacks . Theselected source is shown in the Vid 1 Source indicators A in theInformation Display3 5. Note thatthis recording will take place even ifanother source is being listened to.* Vid 2: Press this button to selectthe device connected to the Video 2Play jacks as the listening andviewing source.4Front Panel Controls( Vid 2 Front/Rear: Press this button to choose either the rearpanel Video 2 Play jacks or thefront panel Video 2 Inputs as theinput source. When the green lightabove the button is illuminated, thefront panel jacks are selected. Speaker Mode Selector: Pressthis button to configure the AVR55for the type of speakers used in yoursystem. See page 18 for details onusing this button. Surround Off: Press this buttonto turn the surround modes off to listen to a source in traditional two-channel stereo from the frontleft/right speakers only. Bass Control: Turn this control tomodify the low frequency output ofthe left/right channels by as much as10dB. Set this control to a suitableposition for your taste and roomacoustics. Surround Mode: Press thisbutton to select one of the analogsurround processing modes (DolbyPro Logic, Dolby 3 Stereo, Theater,Hall, Stadium and Church) for alistening session. Treble Control: Turn this controlto modify the high frequency outputof the left/right channels by as muchas 10dB. Set this control to asuitable position for your taste androom acoustics. Digital Mode Selector: Pressthis button to listen to a source whena PCM or Dolby Digital (AC-3*)signal is present.NOTE: Dolby Digital may only beused with the CD, TV, DVD, Vid 1and Vid 2 inputs. Balance Control: Turn thiscontrol to change the relative volumefor the front left/right channels.NOTE: For proper operation of thesurround modes this control shouldbe at the midpoint, or “12 Oclock”position. Digital Input Selector: When theDigital Mode Selector has beenpressed, this button is used to selectthe type of digital input to be used.NOTE: The coax or optical inputsmay be selected with the CD, TV,DVD, Vid 1 and Vid 2 inputs. The RF input may be used with the Vid 1input only. Night Mode: Press this button to activate the “Night” mode, pre-venting a loud playback when thedigital modes are in use. Video 2 Inputs: These jack maybe used to temporarily connect anaudio/video source such as a videogame or camcorder to the AVR55. To select these jacks as the input,press the Vid 2 Front/Rear button( until the green LED above thatbutton is illuminated. Contour: Press this button whenlistening at low levels to activatespecial circuits that compensate for the response of the human ear at lower volumes. In the off positionthe unit will provide flat frequencyresponse. Volume Control: Turn the knobclockwise to increase volume, counterclockwise to decrease thevolume. Note that approximately tworevolutions of the knob are requiredto go from no output to maximumvolume. Subwoofer Level Adjust:Press these buttons to raise or lowerthe output to the subwoofer channel.These buttons should be used dur-ing normal listening sessions fortouch-up adjustments, not when thetest signal is being used for majorsystem alignment.3 3Center Level Adjust: Pressthese buttons to raise or lower theoutput to the center channel. Thesebuttons should be using duringnormal listening sessions for touch-up adjustments, not when the testsignal is being used for majorsystem alignment.3 4Surround Level Adjust:Press these buttons to raise or lowerthe output to the surround channels.These buttons should be used dur-ing normal listening sessions fortouch-up adjustments, not when thetest signal is being used for majorsystem alignment.3 5Information Display: This display delivers messages and status indications to help you operatethe receiver. Refer to the separatediagram for complete explanation ofthe FL display.3 6Remote Sensor Window: Thesensor behind this window receivesinfrared signals from the remote con-trol. Aim the remote at this area anddo not block or cover it unless anexternal remote sensor is installed.3 7Numeric Keys: Press thesebuttons to enter or recall stationsentered to the tuners preset memory.See page 25 for complete informationon using the tuner and the presetmemories.AVR55 120 volt 5Front Panel Information DisplayAVR55 120 volt DIGITAL HALLTHEATERSTADIUMCHURCHSLEEPSOURCEVID 2DVDTVPRO LOGICVID 1 RECCONTOURSTEREOTUNEDAUTOMEMORYPRESETT MON3 STEREO-FMLKJIGHBA?DECA Vid 1 Record IndicatorsB Dolby Digital IndicatorC Analog Dolby Surround Mode IndicatorsD Analog Surround Mode IndicatorsE Sleep IndicatorF Main Information DisplayG Preset IndicatorH Memory IndicatorI Auto Mode In IndicatorJ Tuned IndicatorK T-Mon IndicatorL Stereo IndicatorM Contour IndicatorA Vid 1 Record Indicators: A dotappears next to one of the sourcesshown in this indicator to tell youwhich input has been selected asthe output to the device connectedto the Video 1 Out jacks . Pressthe Vid 1 Rec button & to changethe source.B Dolby Digital Indicator: Thisindicator illuminates when a DolbyDigital source is being played.C Analog Dolby Surround ModeIndicators: These indicators illumi-nate when one of the analog (matrix)dolby Surround modes is in use.D Analog Surround ModeIndicators: These indicators illumi-nate when one of the DSP generatedanalog surround modes is in use.E Sleep Indicator: This indicator isilluminated when the Sleep functionis in use. The number that appearsabove the indicator is the number ofminutes remaining before the AVR55will return to the Standby mode.F Main Information Display: Thisdisplay shows messages relating tothe status, input source, surroundmode, tuner, volume level or otheraspects of units operation.G Preset Indicator: This indicatorilluminates when one of the stationsentered into the preset memory istuned. The number that appearsbelow the indicator is the presetstations memory.H Memory Indicator: This flashesafter the Memo button 4 u hasbeen pressed to indicate that youshould quickly select and enter apreset memory location for a specificradio station.I Auto Mode In Indicator: Thisindicator illuminates when the “Auto”mode is in use for FM tuning.J Tuned Indicator: This indicatorilluminates when a station is beingreceived with sufficient signalstrength to allow for acceptablelistening quality.K T-Mon Indicator: This indicatorilluminates when the Tape Monitorfunction is in use to remind you thatyou are listening to the record outputof the device connected to the Tape1 Record jacks , not to the actualinput source shown in theInformation Display.L Stereo Indicator: This indicatorilluminates when an FM station isbeing tuned in stereo.M Contour Indicator: This indicatorilluminates when the Contour circuitshave been engaged by pressing theContour button .6Rear Panel ConnectionsAVR55 120 volt CENTERPRE-OUTREARPREOUTFRONTANTENNAMAININPREOUTAMLOOPFM75SUBWOOFEROUTAC-3RF/PCMGNDCOAXIAL/PCMOPTICAL/PCMMODEL NO.: AVR55HARMAN KARDONNORTHRIDGECALIFORNIA, U.S.A.RREAR SPEAKER (8)FRONT SPEAKER (8)CENTER SPEAKER (8)RLLSWITCHED120V/60HzTOTAL 100W1A MAXAC OUTLETSOUTVIDEOMON.REMOTECONTROLVIDEO 2PLAYINDVDPLAYTV/AUXOUTVIDEO 1INRLLRVIDEOTAPE 2RECTAPE 1RECTAPE 2PLAYTAPE 1PLAYCDPHONOLRLRLSER. NORAC INPUT120V/60HZ3.2Aflabcedfghifi AM Antenna FM Antenna Center Channel Preamp Output Rear Preamp Outputs Subwoofer Output Ground Terminal Optical/PCM Digital Input Tape 2 Rec Tape 2 Play Tape 1 Rec Tape 1 Play TV Inputs DVD Input Video 1 OutputsfiSpeaker OutputsflSwitched Outlets AC Power Cord Video 1 Inputs Video 2 Play Inputsa Video Monitor Outputb Remote Control Extension Outputc Remote Control Extension Inputd CD Inpute Phono Inputf Coax Digital Inputg AC-3 RF Inputh Front Channel Preamp Outputsi Front Channel Main In Amp Inputs AM Antenna: Connect the AMloop antenna supplied with thereceiver to these terminals. If an