HarmanKardon-HK3470-rec-sch维修电路原理图.pdf

harman/kardon hk3370/3470STEREO RECEIVERPRELIMINARYSERVICE MANUALCONTENTSESD WARNING.2LEAKAGE TESTING.3BASIC SPECIFICATIONS hk3370.4BASIC SPECIFICATIONS hk3470.5FRONT PANEL CONTROLS hk3370.6REAR PANEL CONNECTIONS hk3370.8REMOTE CONTROL FUNCTIONS HK3370.10FRONT PANEL CONTROLS hk3470.12REAR PANEL CONNECTIONS hk3470.15REMOTE CONTROL FUNCTIONS HK3470.17TROUBLESHOOTING GUIDE.19ALIGNMENT PROCEDURES.20WAVEFORMS.23BLOCK DIAGRAM.28EXPLODED VIEW HK3370.29EXPLODED VIEW HK3470.30DISASSEMBLY PROCEDURES.31MECHANICAL PARTS LIST HK3370.39ELECTRICAL PARTS LIST HK3370.40MECHANICAL PARTS LIST HK3370.57ELECTRICAL PARTS LIST HK3370.58IC DESCRIPTIONS.75PCB DRAWINGS.86SCHEMATICS.92WIRING DIAGRAM.103PACKAGE.104harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797RadioFans.CN 收音机爱 好者资料库SCHEMATIC DIAGRAMMAINHK3470RadioFans.CN 收音机爱 好者资料库7895SCHEMATIC DIAGRAMAMP/TONE/ETC.HK3370 / HK3470POWER AMPTONEVR/LEDPOWER SWPOWER LED7998SCHEMATIC DIAGRAMFRONTHK3370 / HK34708099SCHEMATIC DIAGRAMTUNER/VR/HPHK 3370 / HK 3470HEAD PHONETUNER8110212. WIRING DIAGRAMHK 3370 / HK 34708210320303. Circuit DescriptionCPU(IC401) :uPD780204GF1. Pin Configuration HK3370 / HK34708 752. Pin DescriptionPin No.Pin NameI/OACTIVEPORT NAMEREMARK1Vdd-H+5VSystem power supply2P37IHKR4Key read 43P36IHKR3Key read 34P35IHKR2Key read 25P34IHKR1Key read 16P33-Not used7P32-Not used8P31OH/LPWR_LED(RED)L:AMBER L:GREEN H:RED9P30OH/LPWR_LED(GRN)L:STBY H:OPER L:PROT10RESETILSystem resetLow reset11X2-OSCMain system osc.12X1I-OSC-13Vpp-Conneced to Vss14XT2-Not used15P04/XT1IH/LOPT_RDSRds on/off16Vdd-H+5VSystem power supply17P27-Not used18P26-Not used19P25ILPWR DOWNDetect power off20P24OHPWR_RLYPower Relay on/off21P23OHVR_UPVolume up22P22OHVR_DOWNVolume Down23P21ILPROTECTDetect protection24P20OHPWR_MUTEPower Mute25AVss-LGNDAnalog ground26P17OHPRE_MUTEPre mute27P16OHTUNER_MUTETuner mute28P15IH/LIF_INIF conter in29P15OHPLL CE30P13OHPLL CLOCK31P12OH/LPLL DATA32P11ILTUNEDTuned in on : L33P10ILSTEREOStereo in on : L34Avdd-H+5VAnalog power supply35Avref-LGND36P03-Not used37INTP2ILRDS CLKRds clock in38P01IHRDS DATA Rds data in39P00ILREMOCON INRemocon data in40Vss-LGNDGround41P74OH/L78211 CLK42P73OH/L78211 CE43P72-Not used44P71-Not used45P70-Not used46 Vdd - H +5VuPD780204GF QFP Type HK3370 / HK34709 76Pin No.Pin NameI/OACTIVEPORT NAMEREMARK47P127-Not used48P127-Not used49P125-Not used50P124OH/L78211 DATA51P123-Not used52P122-Not used53P121-Not used54P120-Not used55P117OHVMAXVMAx on/off56P116OHSPK1_RLYSpeaker1 relay on/off57P115OHSPK2_RLYSpeaker2 relay on/off58P114OHSPK1_LEDSpeaker1 led on/off59P113OHSPK2_LEDSpeaker2 led on/off60P112OHSPK12_LEDSpeaker1/2 led on/off61P111-62P110-63P107OHVR_LEDVolume led on/off64P106IH/LOPT_STEPL:E.U. , H:USA65P105IH/LOPT_3400/3700L:3400, H:337066FIP33OHS18FIP segment output67FIP32OHS17FIP segment output68FIP31OHS16FIP segment output69FIP30OHS15FIP segment output70FIP29OHS14FIP segment output71FIP28OHS13FIP segment output72FIP27OHS12FIP segment output73FIP26OHS11FIP segment output74FIP25OHS10FIP segment output75FIP24OHS9FIP segment output76FIP23OHS8FIP segment output77FIP22OHS7FIP segment output78FIP21OHS6FIP segment output79Vload-VloadFIP DRIVER VOLTAGE80FIP20OHS5FIP segment output81FIP19OHS4FIP segment output82FIP18OHS3FIP segment output83FIP17OHS2FIP segment output84FIP16OHS1FIP segment output85FIP15OHG16FIP grid output86FIP14OHG15FIP grid output87FIP13OHG14FIP grid output88FIP12OHG13FIP grid output89FIP11OHG12FIP grid output90FIP10OHG11FIP grid output91FIP9OHG10FIP grid output92FIP8OHG9FIP grid output93FIP7OHG8FIP grid output94FIP6OHG7FIP grid output95FIP5OHG6FIP grid output HK3370 / HK34701077IC 701 : BA6208HK3370 / HK34706478IC 302 : HI-M602HOIC 303 : KIA7042APKIA7042AP816 HK3370 / HK34706579IC 111 : KA78XXIC 112 : KA79XXVOLTAGEREFERENCE+-PROTECTIONCIRCUITRYR1R2RscGNDI1I2OuOut tInInQ1Q2OutputInput HK3370 / HK34706680IC 603 : LA3401 HK3370 / HK34706781IC 102 : LC7821IC 602 : LC7218JM HK3370 / HK34706882IC 108 : LTV817BIC 304 : BR24C04 HK3370 / HK34706983IC 604 : TDA7479DIC 601 : LA1266 AM/FM IF HK3370 / HK34707084Front End : FE601 (FTA3-509HA) U.S.A. VersionFront End : FE601 (FTA4-460H) E.U. Version HK3370 / HK34706385