HarmanKardon-AVR500-avr-sm维修电路原理图.pdf

harman/kardon AVR500 A/V DOLBY DIGITAL RECEIVER SERVICE MANUAL CONTENTS SPECIFICATIONS .2 ESD WARNINGS 4 LEAKAGE TEST. 5 CONTROLS AND FUNCTIONS6 SERVICE PROCEDURE. .9 TEST EQUIPMENT REQUIRED 9 ALIGNMENT PROCEDURES9 ALIGNMENT AND TEST POINTS. 11 CIRCUIT DESCRIPTION.13 BLOCK DIAGRAM .16 BULLETIN HK2000-02.17 BULLETIN HK2000-04.19 BULLETIN HK2000-05.21 DISASSEMBLY PROCEDURES .23 GENERAL UNIT PARTS LIST .24 GENERAL UNIT EXPLODED VIEW. 26 PC . BOARDS .27 ELECTRICAL PARTS LIST .32 IC BLOCK DIAGRAMS .55 CPU PIN CONFIGURATION.75 FLT PIN CONFIGURATION. 76 SCHEMATIC DIAGRAMS .83 PIN CONNECTION DIAGRAM .92 WIRING DIAGRAM .93 PACKING MATERIAL AND PARTS LIST94 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev1 11/2003 RadioFans.CN 收音机爱 好者资料库8 ohms, Dolby Pro Logic100Hz-20kHz 150Hz-20kHzAll Channel Driven65W65WInput Shorted, IHF-A WTD65dB60dBRMS Output Power500RadioFans.CN 收音机爱 好者资料库500Eachprecautioninthismanualshouldbefollowedduringservicing.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 :- 4 -5001. lnspect 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, beperformedwiththe0.35voltRMSormoreisexcessiveandindicatesapotentialshockhazardwhichmustbecorrectedbeforereturningtheunittotheowner.- 5 -500 SWITCHEDTOTAL 150W or 0.5A MAX.UNSWITCHEDTOTAL 100W or 1A MAX.(120V.60Hz)TOTAL 150W or 1.5A MAXMODEL NO. AVR 500HARMAN KARDONNORTHRIDGECALIFORNIA, USAFM(75 )AMANTENNAGNDAC 120V 60 HzINLROUTTAPEVIDEO2INOUTVIDEO1DVDCDSLFLCENTERCOAXIAL 2COAXIAL 1SRFRSUB WOOFERSLSUB WOOFERFLMLSRCENTERFRMR6 CH. DIRECTMULTI OUTPRE OUTSERIAL NO.AC OUTLETSRIGHTSPEAKERS 8 OhmsLEFTSURROUNDOUTINTVMONITOROUTVIDEO 2INOUTDVDVIDEO 1OPTICAL2OPTICAL1OPTICAL1COAXIAL1DIGITAL OUTPUTMULTI INDIGITAL INPUTVIDEOREMOTECONTROLRIGHTSPEAKERS 8 OhmsSPEAKER 8 OhmLEFTCENTERFRONTCENTERVIDEO 1DIGITAL INPUTSLEEPTUNEDSTEREOAUTOMONOPRESETSURR. OFFMUTEPCMTHEATERLOGIC 7 CLOGIC 7 MVMAx3-STEREOPRO LOGICDIGITALCOAXOPT12ANALOGNIGHTMULTIMEMORYABCDEGNOKMLXWTUS RQPVFHI JA Coax SourceB Digital Source Input NumberC Optical SourceD Analog Source IndicatorE PCM IndicatorF Dolby Digital IndicatorG Analog Dolby Surround Mode IndicatorsH VMAx Mode IndicatorI Theater Mode IndicatorJ Logic 7 Mode IndicatorsK DTS Mode IndicatorL Surround OffM Multiroom System IndicatorN Night Mode IndicatorO Preset NumberP Preset IndicatorQ MemoryR AutoS Mono IndicatorT Stereo IndicatorU Tuned IndicatorV Main Information DisplayW Sleep IndicatorX MuteA Coax Source: This indicator illuminateswhen a digital source is in use via a connectionto the Coaxial Digital inputs e.B Digital Source Input Number: Theseindicators tell you which of the two digitalinputs is selected.This indicator works in cojunc-tion with the Coax Source A and OpticalSource C indicators to show which form ofdigital signal is in use.C Optical Source: This indicator illuminateswhen a digital source is in use via a connectionto the Optical Digital input d.D Analog Source Indictor: This indicator illuminates when an analog input source is in use.E PCM Indicator:This indicator illuminatesto show that a standard PCM (S/P-DIF) digitalaudio signal is being decoded by the digital-to-analog converter.F Dolby Digital Indicator: This indicatorilluminates when a Dolby Digital source isbeing played.G Analog Dolby Surround ModeIndicators: These indicators illuminate whenone of the analog (matrix) Dolby Surroundmodes is in use.H VMAx Mode Indicator:This indicator illu-minates to show that the VMAx mode is in use.I Theater Mode Indicator:This indicator illu-minates to show that the Theater mode is in use.J Logic 7 Mode Indicators: These indica-tors illuminate when the Logic 7 mode is inuse. LOGIC 7C appears for the Cinema ver-sion of Logic 7, LOGIC 7M appears for theMusic version of Logic 7.K DTS Mode Indicator:This indicator illumi-nates when a DTS-encoded source is playing.L Surround Off: This indicator illuminateswhen the surround processing has been dis-abled by pressing the Surround Off button.When this indicator is lit, the AVR 500 willplay traditional stereo sound using the front-leftand front-right speakers only.M Multiroom System Indicator:This indica-tor illuminates when the multiroom system is inoperation. (See page 26 for more informationon the multiroom system.)N Night Mode Indicator: This indicatorlights when the AVR 500 is in the Night mode,which preserves the dynamic range of digitalprogram material at low volume levels.O Preset Number: This two-digit displayindicates the station preset number that is currently in use, or that is being entered.P Preset Indicator:This indicator illuminateswhen a station previously entered into the presetmemory is tuned.The number that appears belowthe indicator is the preset stations memory.Q Memory: This indicator flashes whenentering presets and other information into thetuners memory.R Auto: This indicator illuminates when theAuto mode is in use for FM tuning.S Mono Indicator:This indicator illuminateswhen the tuner has been placed in the monauralmode by pressing the Tune Mode button *.Set the tuner for mono listening to reduce noiseand improve the quality of distant stereo signals.T Stereo Indicator:This indicator illuminateswhen an FM station is being tuned in stereo.UTuned Indicator:This indicator illuminateswhen a station is being received with sufficient sig-nal strength to provide acceptable listening quality.V Main Information Display: This displayshows messages relating to the status, inputsource, surround mode, tuner, volume level orother aspects of units operation.W Sleep Indicator: This indicator is illumi-nated when the Sleep function is in use.Thenumber that appears above the indicator is the number of minutes remaining before theAVR 500 will return to the Standby mode.X Mute: This indicator illuminates to remindyou that the AVR 500s output has beensilenced by pressing the Mute button f.Press the Mute button again to return to thepreviously selected output level. SERVICE PROCEDURETEST EQUIPMENT REQUIRED1) AM/FM Signal generator2) Digital Multimeter3) Distortion lever meter2. VFD segment illumination & textThis set do not have VFD segment check function because lack of u-com memory sizeSo For your checking VFD states according to each functionPlease refer to owners manual process.1. All ClearThis service program can clear all memorized operations and functions.When the POWER ON, press the AM/FM button while pressing the PRO LOGICbutton.After this, Preset memory will be set to these frequencies.FMAMVERSION120230RDSVERSION120230RDSP187.587.50P9520522P288.088.00P10600594P390.090.00P11610999P495.095.00P1210001395P598.098.00P1314001611P699.099.00P141500P7106.0106.00P151710P8108.0108.00ALIGNMENT PROCEDURES1. FM MONO. Distortion adjustmentstep12Input Signal SourceConnectionSignal generatoroutput to FMantennaterminal.(750hm)SignalFrequency98MHzSource Signal Output Level andModulation1000uV/m (60dBu)MONO 1kHz/Dev. 75kHzReceptionFrequency98MHz(P5)AdjustmentPointT804T805AdjustmentValue0mV0.5mV(R831)DistortionlevelatTAPE-OUTMinimum4. FM STEREO Separation Adjustmentstep12Input Signal SourceConnectionSignal generatoroutput to FMantennaterminal.(750hm)SignalFrequency98MHzSource Signal Output Level andModulationsame specification asdistortion adjustment.Input only L channelFM STEREOsame specification asdistortion adjustment.Input only R channelFM STEREOReceptionFrequency98MHz(P5)98MHz(P5)AdjustmentPointVR803VR803AdjustmentValueOutput levelat TAPE-OUTchannel RMinimumOutput levelat TAPE-OUTchannel RMinimum2. FM MUTING LEVEL ADJUSTMENTTurn variable resistor VR801 and stop at position TUNED is not shown (not indicated), then again turn the variable resistor VR801 to theopposite revolution and stop at a position TUNED is shown.step12Input Signal SourceConnectionSignal generatoroutput to FMantennaterminal.(750hm)SignalFrequency98MHzSource Signal Output Level andModulation10uV/m (20dBu)MONO 1kHz/Dev. 75kHzReceptionFrequency98MHz(P5)AUTOSCANAdjustmentPointVR801Only confirmAdjustmentValueTUNEDindicate on VFDTUNEDindicate on VFD- 9 -2stepInput Signal SourceConnectionSignalFrequencySource Signal Output Level andModulationReceptionFrequencyAdjustmentPointAdjustmentValue11395kHz(230,230RDS)1400kHz(120)CT8015. AM-Tracking Adjustment (MW)Signal Generatoroutput to transmissionloop antenna(standard required loop)5mV/m(74dBu)400HzMOD.30%594kHz(230,230RDS)600kHz(120)594kHz(230,230RDS)600kHz(120)T801Output level(L or R)atTAPE-OUTMinimumOutput level(L or R)atTAPE-OUTMinimum6. AM IF AdjustmentstepInput Signal SourceConnectionSignalFrequencySource Signal Output Level andModulationReceptionFrequencyAdjustmentPointAdjustmentValueT803Output level(L or R)atTAPE-OUTMaximumSignal Generatoroutput to transmissionloop antenna(standard required loop)5mV/m(74dBu)400HzMOD.30%999kHz(230,230RDS)1000kHz(120)999kHz(230,230RDS)1000kHz(120)Output level(L or R)atTAPE-OUTMaximum1stepInput Signal SourceConnectionSignalFrequencySource Signal Output Level andModulationReceptionFrequencyAdjustmentPointAdjustmentValue1522kHz(230,230RDS)520kHz(120)5mV/m(74dBu)400HzMOD.30%Signal Generatoroutput to transmissionloop antenna(standard required loop)522kHz(230,230RDS)520kHz(120)(P9)T8021.1V1.2V4. AM OSC Adujstment5002stepInput Signal SourceConnectionSignalFrequencySource Signal Output Level andModulationReceptionFrequencyAdjustmentPointAdjustmentValue17. AM auto stop AdjustmentSignal Generatoroutput to transmissionloop antenna(standard required loop)1000uV/m(60dBu)400HzMOD.30%AUTO SCANTUNEDindicate onVFD999kHz(230,230RDS)1000kHz(120)999kHz(230,230RDS)1000kHz(120)OnlyConfirmVR802TUNEDindicate onVFD8. Main Amp ldling current Adjustment(4) CAUTIONshould be adjusted again* FRONT AMP: Q433Q440* CENTER AMP: Q517Q520* SURROUND AMP: Q633Q6401) In case that POWER TR or DREVE TR is needed to be replaced for repairing, the corresponding channel(1) SET CONDITION1) SEMI VOLUME POSITION at MAIN/SURROUND AMP Board; CENTERMAIN: VR401, VR402, VR501SURROUND : VR601, VR6022) NO signal / NO LOAD3) AC LINE VOLTAGE : 120V/60Hz, 230V/50Hz(2) After turning on the unit, keep it over than 5MIN. (Keep the Power/Drive TR as normal temperature)(3) Adjust the voltage value of primary & secondary of wafer to be 10mV by rotating the semi-volumeof each channel to the rightR401:22.7mAR472:22.7mAR501:22.7mAR601:22.7mAR602:22.7mAFRONT-L chFRONT-R chCENTER chSURROUND-L chSURROUND-R chVR401VR402VR501VR601VR602WA401WA402WA501WA601WA602CHANNELADJUSTMENTMEASUREMENTOTHERS- 10 -103mV103mV103mV103mV103mVVOLAGE9. Main Amp DC OFFSET VOLTAGE Adjustment(4) CAUTIONshould be adjusted again* FRONT AMP: Q401Q440, Q411Q414* CENTER AMP: Q501, Q502, Q506, Q507* SURROUND AMP: Q601Q604, Q611Q6141) In case that POWER TR or DREVE TR is needed to be replaced for repairing, the corresponding channel(1) SET CONDITION1) SEMI VOLUME POSITION at MAIN/SURROUND AMP Board; CENTERMAIN: VR403, VR404, VR502SURROUND : VR603, VR6042) NO signal / NO LOAD3) AC LINE VOLTAGE : 120V/60Hz, 230V/50Hz(2) After turning on the unit, keep it over than 5MIN. (Keep the Power/Drive TR as normal temperature)(3) Adjust the voltage value of primary & secondary of wafer to be 10mV by rotating the semi-volumeof each channel to the rightFRONT-L chFRONT-R chCENTER chSURROUND-L chSURROUND-R chVR403VR404VR502VR603Vr604JK401JK402JK501JK601JK601CHANNELADJUSTMENTMEASUREM