HarmanKardon-AVR45-avr-sm维修电路原理图.pdf

harman/kardon AVR45 AVR45 A/V DOLBY DIGITAL RECEIVER SERVICE MANUAL CONTENTS ELECTROSTATICALLY SENSITIVE(ES)DEVICES.2 LEAKAGE TEST. 3 SPECIFICATIONS4 CONTROLS AND FUNCTIONS.6 REAR PANEL CONNECTIONS.8 SERVICE PROCEDURE.9 ALIGNMENT PROCEDURES.9 MAIN AMP IDLING CURRENT ADJUSTMENT10 ALIGNMENT AND TEST POINTS. 11 CIRCUIT DESCRIPTION .13 BLOCK DIAGRAM. 16 DISASSEMBLY PROCEDURES .17 GENERAL UNIT PARTS LIST.18 GENERAL UNIT EXPLODED VIEW.20 SERVICE BULLETIN HK9804.21 SERVICE BULLETIN HK9903.22 SERVICE BULLETIN HK2000-01.23 SERVICE BULLETIN HK2001-02.25 PC . BOARDS.27 ELECTRICAL PARTS LIST .32 IC BLOCK DIAGRAMS .48 CPU BLOCK DIAGRAM.59 DISPLAY SEGMENTS.67 FLT PIN CONFIGURATION 68 SCHEMATIC DIAGRAMS.69 SCHEMATIC DIAGRAMS (RDS/SG).76 SEMICONDUCTOR PIN DIAGRAM85 WIRING DIAGRAM 86 PACKING MATERIAL AND PARTS LIST .87 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev1 8/2005 RadioFans.CN 收音机爱 好者资料库Eachprecautioninthismanualshouldbefollowedduringservicing.Components identified with the IEC symbolin the parts list are special significance to safety. When replacing a component identified with, use only the replacement parts designated, or parts with the same ratings or resistance, wattage, or voltage that are designated in theparts list in this manual. Leakage-current or resistance measurements must be made to determine that exposed parts are acceptablyinsulated from the supply circuit before retuming the product to the customer.Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are calledElectrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors andsemiconductor chip components.The following techniques should be used to help reduce the incidence of component damage caused by static electricity.1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge onyour body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device,which should be removed for potential shock reasons prior to applying power to the unit under test.2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, toprevent electrostatic charge build-up or exposure of the assembly.3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.4. Use only an anti-static solder removal device. Some solder removal devices not classified as anti-static can generate electrical chargessufficient to damage ES devices.5. Do not use freon-propelled chemicals. These can generate electrical change sufficient to damage ES devices.6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacementES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material.)7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to thechassis or circuit assembly into which the device will be installed.Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing togetheror your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES devices.CAUTION :2RadioFans.CN 收音机爱 好者资料库1 Inspect all lead dress to make certain thatleads are not pinched or that hardware is notlodged between the chassis and other metalpartsintheunit.2. Be sure that any protective devices such asnonmetallic control knobs, insulating fish-papers,cabinetbacks,adjustmentandcompartment covers or shields, isolationresistor-capacitynetworks,mechanicalinsulators, etc. Which were removed for theservicingareproperlyre-installed.Before returning the unit to the user, perform the following safety checks :3. Be sure that no shock hazard exists ; check for leakagecurrentusingSimpsonModel229LeakageTester,standardequipment item No. 21641, RCA Model WT540A or usealternate method as follows : Plug the power cord directlyInto a 120 volt AC receptacle (do not use an IsolationTransformer for this test). Using two clip leads, connect a1500ohms,10wattResistorparalleledbya0.15uFcapacitor,inserieswithallexposedmetalcabinetpartsandaknownearthground,suchas a water pipe or conduit. Use a VTVM or VOM with 1000 ohms per volt, or higher sensitivity to measure the AC voltage drop across theresistor. (See diagram) Move the resistor connection to each exposed metal part having a return path to the chassis (antenna, metal,cabinet,screwheads,knobsandcontrolshafts,escutcheon,etc.)andmeasuretheACvoltagedropacrosstheresistor.(Thistestshouldbeperformedwiththe0.35voltRMSormoreisexcessiveandindicatesapotentialshockhazardwhichmustbecorrectedbeforereturningtheunittotheowner.3Continuous Power OutputRMS Output PowerRMS Output PowerLine level at pre-outSurround mode : BYPASS(STEREO)Input Signal : L ch (only) 200mVMaster Volume :5dBLow pass crossover frequencySlope (Low Pass Filter)Input Sensitivify / ImpedenceVID1/VID2/VID3Output Level / ImpedanceVID1/VID2/VID3Frequency Response at-3dBTuning Cover Range 100kHz Step for AVR-45(STEREO MODE), Input : CDTHD : 0.08%, 8 ohmsBoth Channel Driven(20Hz-20kHz)(SURROUND MODE)THD : 0.5%, 8 ohms, 1kHzTHD : at 60W, 8 ohms, Input : CD20Hz1kHz20kHzIM Distortion at 70W, 8 ohms, Vol : Max.THD(0.5%, 8 ohms, 1kHz)All Channel DrivenTHD(0.5%, 8 ohms, 1kHz)All Channel DrivenS/N Ratio(Input Shorted, IHF-A WTD)Delay : 20ms, Input Level : 200mVFrequency Response at-3dB8 ohms, Dolby Pro LogicS/N Ratio(Input Level : 200mV)Input Shorted, IHF-A WTDFrequency Respones at-3dB8 ohms, Dolby Pro LogicInput Sensitivity for Rated Power Output(60W)CD/DVD/TAPE MONITORVID1/VID2/VID3S/N Ratio Input Shorted at 1 kHz 1W Output(WTD IHF-A)CDTone ControlBass : 100HzTreble : 10kHz100Hz1kHz10kHzFrequency Response at-3dBChannel Crosstalk Input Shorted by 1 K OhmsMode : Stereo(1Watt)NominalLimit5W5W0W5W65dB100Hz-20kHz 150Hz-20kHz50W60dB55W65dB100Hz-20kHz 150Hz-20kHz50W60dB1Vp-p/75DC-8 MHzohm/1dBDC-6 MHz70Hz cut off24dB/octave0W0.08%0.08%0.08%0.03%0.03%0.03%0.08%170230mV170230mV0.03%200mV200mV10dB3dB10dB3dB10dB3dB10dB3dB10Hz-80kHz82dB10dB10dB10dB10dB63dB63dB62dB10Hz-70kHz55dB55dB45dB87.50-108.00MHz1Vp-p/75ohm/1dB417.2dbf0dB0dB3.3dbf0.5%60dB.0dB.0dB50B39.2dbf65dbf2.5dBdB350-650mV65dbfTuning Cover Range(MW)AVR-45 : 10kHz/StepAVR-45RDS/SG : 9kHz StepUsable Sensitivity(MW, at 999 / 1000kHz)NominalLimit520-1710kHz522-1611kHz500uV/m00uV/mTuning Cover Range 50 kHz Step for AVR-45RDS/SGImage Rejection(at 999kHz)IF Rejection(at 999/1000kHz)AGC Figure of Merit(From 100mV/m at 999/1000kHz)Distortion(999/1000kHz, 30% MOD, 50mV/m Input)Frequency Response(999/1000Hz)At-3dBSelectivity(999/1000Hz)9kHz/10kHzS/N Ratio(999/1000kHz, With Antenna Input 5mV/m)Overload Break-up at 999/1000kHz(THD 10%)Tape Output Level at 999/1000kHz(5mV/m Input)Mono Usable Sensitivity(75 ohms Input, 98MHz)Image Rejection(at 98MHz)IF Rejection(at 90MHz)46dB Queting Sensitivity(at 98MHz, 100% MOD.)StereoDistortion(1kHz, 75kHz dev. At 98MHz, 71dbf Input)MonoS/N Ratio(500uV Input, 100% MOD. At 98MHz)StereoFrequency Response(30Hz-15kHz)AVR-45 De-Emphasis : 75AVR-45RDS/SG De-Emphasis : 50AM Suppression at 98MHzMuting Threshold(at 98MHz)Overload Break-up at 98 MHzCapture Ratio at 65dbfStereo Separation(at 98MHz, 100% MOD, 500Input)IHF Band Pass Filter1kHzTape out Level(at 98MHz)14.2dbf80dB90dB39.2dbf0.3%65dB0.5dB2.0dB50dB31.2dbf71dbf2dB40dB500mV71dbf40dB50dB50dB1.0%100Hz-2.2kHz30dB45dB1000mV/m200mV0dB5dB5dB.0%150Hz-1.8kHzdB40dB00mV/m160-240mVPower ConsumptionAt Rated Power All Channel DrivenIdling at Minimum Volume ControlPower Supplies :USA/Canada(AVR-65)Europe(AVR-65RDS/SG)Dimension(W x H x D)InchesMMWeight(lbs/kgs)These specifications are service target specs.specifications and components are subject to change without notice.Overall performance will be maintained or improved.AC120V, 60HzAC230V, 50Hz17.36.517.144016543529/13.2332W72W5Main Power Switch :NOTE :System Power Control :Power IndicatorPower Indicator :Head Phone Jack :Press this button toapply power to the AVR-65.When the switch is pressed in the unit is placedin a Standby mode, as indicated by the amberLED.This button MUST be pressed in to operate theunit. To turn the unit off and prevent the use ofthe remote control, this switch should be presseduntil it pops out from the panel so that the wordOFF may be read at the top of the switch.In normal operation this switch is left inthe ON position.When the MainPower Switch 1 is ON, press this button toturn on the AVR-65 ; press it again to turn theunit off. Note that thesurrounding the switchwill turn green whenthe unit is on.This LED will illuminate inamber when the unit is in the Standby mode tosignal that the unit is ready to be turned on.When the unit is in operation, the indicator willturn green.This jack may be usedto listen to the AVR-65s output through a pair ofheadphones. Be certain that the headphoneshave a standard 1/4 stereo phone plug.Bass Control :Treble Control :Balance Control :NOTE :Video 3 Inputs :T-Mon Selector :Tape MonitorTurn this control to modifythe lower frequency output of the left / rightchannels by as much as +/-10dB. Set thiscontrol to a suitable position for your taste androom acoustics.Turn this control to modifythe high frequency output of the left / rightchannels by as much as +/-10dB.Set this control to a suitable position for yourtaste and room acoustics.Turn this control tochange the relative volume for the front left /right channels.For proper operation of the surroundmodes this control should be at the midpoint, or12 oclock position.These audio / video inputsmay be used for temporary connection of videogames, camcorder, digital still cameras orportable audio products. To select a sourceconnected to these jacks, press the Video 3Input Selector.Press this button to selectthe device connected to thejacks(24) as the listening source. The previouslyselected source will continue to show in theinformation DisplayCD :DVD :Video Input Selectors :Audio/Video6-Channel director Selector :6 Ch DirectAM/FM :Tuning button :, and the red LEDabove the button will illuminate to remind youthat you are listening to the tape monitor output.Press this button to select the deviceconnected to the CD Input jacks (6) as thelistening source.Press this button to select thedevice connected to the DVD play jacks (7) asthe listening and viewing source.Press one of thesebuttons to select a source connected to the rearpanelinputs (3), (16), or the frontpanelPress thisbutton to select the output of an optional, external6-channel decoder connected to theinputs (5) as the listening source.Press this button to select thetuner as the AVR-65s input source. When it isfirst pressed the last station tuned will be heard.Press it again to change between AM and FMbands.Press the left side of thebutton to tune lower frequency station and theright side of the button to tune higher frequencyAudio/Video input.stations. When a station with a strong signal istuned, theindicatorwill illuminate inthe Information Display. A brief(1/2 second)press of the button will manually tune to the nextfrequency increment, while pressing and holdingthe button for a long period will automaticallytune to the next station with a signal strongenough for acceptable reception.Press this button toautomatically scan through the station that havebeen programmed in the AVR-65s memory.The tuner will play five seconds of each stationbefore moving to the next preset station. To stopthe scan when the desired station is heard, pressthe button again.Press this buttonto select stations that have been entered into thepreset memory.Press this button toselect the auto or mono mode for FM tuning.In the AUTO mode,indicator willilluminate in the information display, and whenstations are transmitting stereo signals, thestereo reception will be provided andindicator will also be illuminated in theinformation display. In the MONO mode the leftand right signals from stereo broadcasts will bemixed together and reproduced through allchannels. Select MONO for better reception ofweak signals.Press this button toselect the Dolby Digital surround mode whenlistening to a program that carries the DolbyDigital surround mode when listening to aTUNEDPreset Scan :Preset Stations Selector :TUN.MODE/RDS :AUTOStereoDolby Digital Selector :CONTROLS AND FUNCTIONSFront Panelprogram that carries the Dolby Digital information.Press thisbutton to select the Dolby Pro Logic surroundmode when listening to an analog ordigital(PCM) program that is encoded withsurround-sound information.Press this buttonto select the Dolby 3 Stereo listening mode.This mode is used primarily when a programhas surround information when a center channelspeaker, but no surround speakers, is installed.Press one ofthese buttons to select the analog surroundmodes. These modes may be used with anyanalog program source to create a pleasingsurround effect.press this button to selectDTS decoding when listening to an audio orvideo program that is encoded with DTSdata.(See page 25 for more information onsurround modes and digital audio.)Press this button to turn offall surround processing, and to listen to aprogram in traditional stereo from the left frontand right front speakers only.Press this button to momentarilysilence the speaker output of the AVR-65.Turn the knob clockwise toincrease volume, counter clockwise to decreasethe volume.Dolby Pro Logic Selector :Dolby 3 Stereo Selector :Surround Mode Selectors :DTS Selector :Surround Off :Mute :Volume Control :Delay :Digital Input Selector :OpticalCoaxialDigitalSet Button :Multi-room :Speaker Selector Button :Selector Buttons :Information Display :Remote Sensor Window :Press this button to begin thesequence of steps required to enter delay timesettings.When playing asource that has a digital output, press this buttonto select between the(19) and(18)inputs.When making choices duringthe setup and configuration process, press thisbutton to enter the desired setting, as shown inthe information Display, into the AVR-65smemory.Press this button to begin theprocess of selecting and configuring theAVR-65s output channels.Press this buttonto begin the process of selecting the speakerpositions that are used in your listening room.When you areestablishing the AVR-65s configuration settings,use these buttons to select between the choicesavailable. as shown in the information Display.This display deliversmessages and status indications to help youoperate the receiver.The sensorbehind this window receives infrared signals fromthe remote control. Aim the remote at this areaand do not block