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

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1、harman/kardon hk3370/3470 STEREO RECEIVER PRELIMINARY SERVICE MANUAL CONTENTS ESD WARNING.2 LEAKAGE TESTING.3 BASIC SPECIFICATIONS hk3370.4 BASIC SPECIFICATIONS hk3470.5 FRONT PANEL CONTROLS hk3370.6 REAR PANEL CONNECTIONS hk3370.8 REMOTE CONTROL FUNCTIONS HK3370.10 FRONT PANEL CONTROLS hk3470.12 RE

2、AR PANEL CONNECTIONS hk3470.15 REMOTE CONTROL FUNCTIONS HK3470.17 TROUBLESHOOTING GUIDE.19 ALIGNMENT PROCEDURES.20 WAVEFORMS.23 BLOCK DIAGRAM.28 EXPLODED VIEW HK3370.29 EXPLODED VIEW HK3470.30 DISASSEMBLY PROCEDURES.31 MECHANICAL PARTS LIST HK3370.39 ELECTRICAL PARTS LIST HK3370.40 MECHANICAL PARTS

3、LIST HK3370.57 ELECTRICAL PARTS LIST HK3370.58 IC DESCRIPTIONS.75 PCB DRAWINGS.86 SCHEMATICS.92 WIRING DIAGRAM.103 PACKAGE.104 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 RadioFans.CN SCHEMATIC DIAGRAM MAIN HK3470RadioFans.CN 7895 SCHEMATIC DIAGRAM AMP/TONE/ETC. HK3370 / HK34

4、70 POWER AMP TONE VR/LED POWER SW POWER LED RadioFans.CN 79 98 SCHEMATIC DIAGRAM FRONT HK3370 / HK3470 80 99 SCHEMATIC DIAGRAM TUNER/VR/HP HK 3370 / HK 3470 HEAD PHONE TUNER 81 102 12. WIRING DIAGRAM HK 3370 / HK 3470 82103 20 30 3. Circuit Description CPU(IC401) :uPD780204GF 1. Pin Configuration HK

5、3370 / HK3470 8 75 2. Pin Description Pin No.Pin NameI/OACTIVEPORT NAMEREMARK 1Vdd-H+5VSystem power supply 2P37IHKR4Key read 4 3P36IHKR3Key read 3 4P35IHKR2Key read 2 5P34IHKR1Key read 1 6P33-Not used 7P32-Not used 8P31OH/LPWR_LED(RED)L:AMBER L:GREEN H:RED 9P30OH/LPWR_LED(GRN)L:STBY H:OPER L:PROT 10

6、RESETILSystem resetLow reset 11X2-OSCMain system osc. 12X1I-OSC- 13Vpp-Conneced to Vss 14XT2-Not used 15P04/XT1IH/LOPT_RDSRds on/off 16Vdd-H+5VSystem power supply 17P27-Not used 18P26-Not used 19P25ILPWR DOWNDetect power off 20P24OHPWR_RLYPower Relay on/off 21P23OHVR_UPVolume up 22P22OHVR_DOWNVolume

7、 Down 23P21ILPROTECTDetect protection 24P20OHPWR_MUTEPower Mute 25AVss-LGNDAnalog ground 26P17OHPRE_MUTEPre mute 27P16OHTUNER_MUTETuner mute 28P15IH/LIF_INIF conter in 29P15OHPLL CE 30P13OHPLL CLOCK 31P12OH/LPLL DATA 32P11ILTUNEDTuned in on : L 33P10ILSTEREOStereo in on : L 34Avdd-H+5VAnalog power s

8、upply 35Avref-LGND 36P03-Not used 37INTP2ILRDS CLKRds clock in 38P01IHRDS DATA Rds data in 39P00ILREMOCON INRemocon data in 40Vss-LGNDGround 41P74OH/L78211 CLK 42P73OH/L78211 CE 43P72-Not used 44P71-Not used 45P70-Not used 46 Vdd - H +5V uPD780204GF QFP Type HK3370 / HK3470 9 76 Pin No.Pin NameI/OAC

9、TIVEPORT NAMEREMARK 47P127-Not used 48P127-Not used 49P125-Not used 50P124OH/L78211 DATA 51P123-Not used 52P122-Not used 53P121-Not used 54P120-Not used 55P117OHVMAXVMAx on/off 56P116OHSPK1_RLYSpeaker1 relay on/off 57P115OHSPK2_RLYSpeaker2 relay on/off 58P114OHSPK1_LEDSpeaker1 led on/off 59P113OHSPK

10、2_LEDSpeaker2 led on/off 60P112OHSPK12_LEDSpeaker1/2 led on/off 61P111- 62P110- 63P107OHVR_LEDVolume led on/off 64P106IH/LOPT_STEPL:E.U. , H:USA 65P105IH/LOPT_3400/3700L:3400, H:3370 66FIP33OHS18FIP segment output 67FIP32OHS17FIP segment output 68FIP31OHS16FIP segment output 69FIP30OHS15FIP segment

11、output 70FIP29OHS14FIP segment output 71FIP28OHS13FIP segment output 72FIP27OHS12FIP segment output 73FIP26OHS11FIP segment output 74FIP25OHS10FIP segment output 75FIP24OHS9FIP segment output 76FIP23OHS8FIP segment output 77FIP22OHS7FIP segment output 78FIP21OHS6FIP segment output 79Vload-VloadFIP D

12、RIVER VOLTAGE 80FIP20OHS5FIP segment output 81FIP19OHS4FIP segment output 82FIP18OHS3FIP segment output 83FIP17OHS2FIP segment output 84FIP16OHS1FIP segment output 85FIP15OHG16FIP grid output 86FIP14OHG15FIP grid output 87FIP13OHG14FIP grid output 88FIP12OHG13FIP grid output 89FIP11OHG12FIP grid out

13、put 90FIP10OHG11FIP grid output 91FIP9OHG10FIP grid output 92FIP8OHG9FIP grid output 93FIP7OHG8FIP grid output 94FIP6OHG7FIP grid output 95FIP5OHG6FIP grid output HK3370 / HK3470 10 77 IC 701 : BA6208 HK3370 / HK3470 64 78 IC 302 : HI-M602HO IC 303 : KIA7042AP KIA70 42AP 816 HK3370 / HK3470 65 79 IC

14、 111 : KA78XX IC 112 : KA79XX VOLTAGE REFERENCE + - PROTECTION CIRCUITRY R1 R2 Rsc GND I1I2 OuOut t InIn Q1 Q2 Output Input HK3370 / HK3470 6680 IC 603 : LA3401 HK3370 / HK3470 67 81 IC 102 : LC7821 IC 602 : LC7218JM HK3370 / HK3470 68 82 IC 108 : LTV817B IC 304 : BR24C04 HK3370 / HK3470 69 83 IC 604 : TDA7479D IC 601 : LA1266 AM/FM IF HK3370 / HK3470 70 84 Front End : FE601 (FTA3-509HA) U.S.A. Version Front End : FE601 (FTA4-460H) E.U. Version HK3370 / HK3470 63 85