HarmanKardon-HK3490-rec-sm维修电路原理图.pdf

harman/kardon HK3490 HK3490 STEREO RECEIVER SERVICE MANUAL CONTENTS ESD WARNING.2 LEAKAGE TESTING.3 BASIC SPECIFICATIONS.4 PACKAGING.5 FRONT PANEL CONTROLS.6 REAR PANEL CONNECTIONS.8 REMOTE CONTROL FUNCTIONS.11 CONNECTIONS/INSTALLATION.14 OPERATION.21 TROUBLESHOOTING GUIDE.26 PROCESSOR RESET.26 DISASSEMBLY.27 UNIT EXPLODED VIEW.30 EXPLODED VIEW PARTS LIST31 AMP BIAS ADJUSTMENT.32 BLOCK DIAGRAM.33 PCB DRAWINGS34 ELECTRICAL PARTS LIST.40 SEMICONDUCTOR PINOUTS.63 SCHEMATICS.104 WIRING DIAGRAM.108 harman/kardon, Inc. 250 Crossways Park Dr. Released 2008 Woodbury, New York 11797 Rev0 6/2008 Discontinued XXXX 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 :HK3490 harman/kardonharman/kardon RadioFans.CN 收音机爱 好者资料库21. 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 asfollows : 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.HK3490 harman/kardonharman/kardon 329HK 3490 TECHNICAL SPECIFICATIONSAudio SectionStereo Mode:Continuous Average Power (FTC):120 Watts per channel, 20Hz 20kHz, 0.07% THD, both channels driven into 8 ohms150 Watts per channel, 20Hz 20kHz 80dBIF Rejection:100dBTuner Output Level:1kHz, 100kHz, Dev 500mVAM Tuner SectionFrequency Range:520 1720kHzSignal-to-Noise Ratio:40dBUsable Sensitivity:Loop 500V/MDistortion:1kHz, 50% Mod 0.8%Selectivity:10kHz, 25dBVideo SectionTelevision Format:NTSC/PAL/SECAMSignal Format:CompositeInput Level:1Vp-pInput Impedance:75 Ohms, unbalancedSync Polarity:NegativeOutput Level:1Vp-pOutput Impedance:75 Ohms, unbalancedVideo Frequency Response:10Hz 10MHzGeneralPower Requirement:AC 120V/60HzPower Consumption:C307,308,309,310 =HK3390 : 220/63HK3490 : 470/63HK3390USA:T 6.3A L 250V EUR:T 4A L 250V EUR:T 6.3A L 250V USA:T 8A L 250V HK3490+40VGNDACAC1ST_5.6VPOWER_HSPK1_FLSPK2_FLSPK1_FRSPK2_FRTRIG 1TRIG 2DIMMERFROM FRONT : 2mm pitchFROM TRANS : 2mm pitchFROM TRANS : 3.96mm pitchTO TRANSTO H_PHONE : 2mm pitchFROM INPUT : 1.25mm pitchBN15TRIG_2+15VTRIG_1SUB ON_2SUB ON_1SUB_OUT2SUB_OUT1SUB_MONOP_DOWNGNDSUB ON_2SUB_MONOSUB ON_1TONE_L_OUTTONE_R_OUTSPK1TRIG_1+15VSUB_MONOSUB ON_1SUB_OUT1SUB_OUT2SUB ON_2TRIG_212060SCMYM/PREDBLKBLUCHGNDSPK2ONOFFONOFFONOFFONOFFMOMS SW08.02.2308.02.23C303470PR30333KC30110/50VR31933KR30710R36510KQ323KSC2785YC31510/50VR35147(1/4W)R35347(1/4W)C31112PC309100/100VC31710/50VC305100/16VC307100/100VR3211.2KD3051SS133MR309270R305470R313120R311120R3151.5KR3171.5KR329560R325560R333560R323560R331560R3493.3(1/4W)R3473.3(1/4W)R34122KR33922KR3431.2KR345330R327560R3631KR3611.8KR3591KQ305KTC3200Q303KTC3200Q301KTC3200Q307KTA1268Q313KTA1360YQ311KTC3200Q309KTA1268Q315KTC3423YQ317KTC3114AQ3192SD2401R3601KR3621.8KR3641KC31810/50VQ324KSC2785YR36610KQ335C107MQ336C107MQ332KRA107MQ333KSC2785YQ334KSC2785YQ331KSA1175YD3091SS133MD3081SS133M2431D113600V/8AR11039KR38227KR3861KR39347R38547KR37510(1W)R38127KR37147(1/4W)R37347(1/4W)R37247(1/4W)R37447(1/4W)R39247R39147D3071SS133MR3841.5KC3414.7/50VC343470/10VC3345600P(M)C3325600P(M)C3420.022uC3190.047u(M)C3200.047u(M)R37610(1W)L3010.5uHL3020.5uHD1171N4003SD1161N4003SD1151N4003SD1141N4003F101D1041N4003SR38347KC3315600P(M)C3335600P(M)R11239KR11139KR11339KC11610000uF/63VR11812K(1/4W)R11912K(1/4W)C1170.047uC1180.047uD102Z33VC10447/63VR1031.2KD1051SS133MD1061SS133MD1091N4003SD1071SS133MC1130.022uR10682(1/4W)C1123300/16VC1100.022uC111100/16VD3011SS133MD3031SS133MGNDOUTIN321IC12L7815GNDOUTIN321IC11KIA7805C119100/25VC120100/25VQ207KTC2874BQ208KTC2874BQ210KRC107MQ209KRA107MR2343.3KR2353.3KR2335.6K21TH31C201100PR205180KR201100C202100PR206180KR202100C203100PR207180KR203100C204100PR208180KR204100Q337A107MQ338A107M54321BN73R1093.3MD103Z6.8VQ3212SB1570VR31R377270(2W)R378270(2W)C11510000uF/63VQ104KSC2785YD1101N4003SD1121N4003SD1111N4003SC1140.022uR10810(1W)C1080.0047C1090.1F102T 2.5A L 250V987654321CN13R3550.22 X2D2041SS133MD2031SS133M12CN15C3350.047u(M)C3360.047u(M)R1050.47(1W)R1072.2KQ101C2316YC106470/63VC1050.01uFC10347/63VC1020.01uF21CN31C351100PC31333PR33575R33775R33875R33675C31433PC352100P21CN32R356 0.22 X2VR32D3041SS133MD3021SS133MQ318KTC3114AQ316KTC3423YQ310KTA1268Q312KTC3200Q314KTA1360YQ308KTA1268Q302KTC3200Q304KTC3200Q306KTC3200R328560R346330R3441.2KR34022KR34222KR3483.3(1/4W)R3503.3(1/4W)R332560R324560R334560R326560R330560R3181.5KR3161.5KR312120R314120R306470R310270D3061SS133MR358510C308100/100VC306100/16VC310100/100VC31212PR35447(1/4W)R35247(1/4W)C31610/50VR30810R32033KC30210/50VR30433KC304470PR2391MC107100/25VR36722K(1/4W)R36822K(1/4W)R357510R3221.2KD1081SS133MR23210KR2318.2K(1/4W)C2401/50VR1171.8KR1151.8KR1141.8KR1161.8KQ3202SD2401Q3222SB1570D3101SS133MQ339C107MR39447Q340A107M10987654321-+-+-+JK31P1P2P3321CN11INOUTGND321IC13L79151243RY11P4P5T102Q103C107MQ102C107MR10447KD2021SS133MD2011SS133M321CN16OL11R24010R241102422211021JK23JK21JK22ET11D1251N4003SRD1241N4003SRC1320.47uF/50VR1282.2K (1/4W)D1266.2VC13322/50VR12910KC1340.1uF123VDDVSSOUTIC14HVIS-80842CNY-XD1271SS133MR13047K21CN18D1321N4003SRD1331N4003SR1617151413121110987654321CN21SW22SW21654231RY33654231RY32654231RY31+VCC1-VCC1+VCC2-VCC2C123470P54321BN24JW12JW11Q341C107MQ345KRC107MQ344KRA107M1110987654321CN231110987654321BN23R39547R39639KQ343KRC107MQ342KRA107MC1218200uF/35VC1226800uF/35VC3210.047uC2410.1/50VR24210k(1/4W)D118Z27VD119Z27VF_MUTEPROTECT_LF_MUTEPROTECT_LSPK1SPK2HP_ONHP_IN+VCC-VCC+VCC-VCC+VCC+VCC-VCC+15VA-15VA+15VA-15VA+15VA+15VAHP_ONHP_IN-15VASPK1SPK2-15VA+15VASPK2SPK1+15VA+15VA107HK3490 harman/kardonharman/kardon 108