HarmanKardon-AVR300RDS-avr-sm维修电路原理图.pdf

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1、RadioFans.CN 收音机爱 好者资料库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

2、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 semiconduc

3、tor (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 shoul

4、d 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 com

5、mercially 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 electro

6、static 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.

7、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 short

8、ed 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

9、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 sta

10、tic electricity sufficient to damage an ES devices.CAUTION :- 4 -3001. 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

11、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 ex

12、ists ; 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 a1500ohm

13、s,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 e

14、ach exposed metal part having a return path to the chassis (antenna, metal, beperformedwiththe0.35voltRMSormoreisexcessiveandindicatesapotentialshockhazardwhichmustbecorrectedbeforereturningtheunittotheowner.- 5 -300?SERVICE PROCEDURETE S T E QUIP ME NT R E QUIR E D1) AM/ FM Signal generator2) Digit

15、al Multimeter3) Distortion lever meter2 . V F Ds e g me n t i l l u mi n a t i o n&t e x tThis 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 . Al l Cl e a rThis service pro

16、gram 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.FMAMVERSION120230RDSVERSION120230RDSP187.587.50P9520522P288.088.00P10600594P390.090.00P11610999P495.095.00P12

17、10001395P598.098.00P1314001611P699.099.00P141500P7106.0106.00P151710P8108.0108.00AL IGNME NT P R OCE DUR E S1 . F M MONO. Di s t o r t i o na d j u s t me n tstep12Input Signal SourceConnectionSignal generatoroutput to FMantennaterminal.(750hm)SignalFrequency98MHzSource Signal Output Level andModula

18、tion1000uV/ m (60dBu)MONO 1kHz/Dev. 75kHzReceptionFrequency98MHz(P5)AdjustmentPointT804T805AdjustmentValue0mV0.5mV(R831)DistortionlevelatTAPE-OUTMi n i mu m4. F MS TE R E O S e p a r a t i o nAd j u s t me n tstep12Input Signal SourceConnectionSignal generatoroutput to FMantennaterminal.(750hm)Signa

19、lFrequency98MHzSource Signal Output Level andModulationsame specification asdistortion adjustment.Input only L channelF M S TE R E Osame specification asdistortion adjustment.Input only R channelF M S TE R E OReceptionFrequency98MHz(P5)98MHz(P5)AdjustmentPointVR803VR803AdjustmentValueOutput levelat

20、TAPE-OUTchannel RMi n i mu mOutput levelat TAPE-OUTchannel RMi n i mu m2 . F M MUTINGL E V E LADJ US TME NTTurn 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

21、.step12Input Signal SourceConnectionSignal generatoroutput to FMantennaterminal.(750hm)SignalFrequency98MHzSource Signal Output Level andModulation10uV/ m (20dBu)MONO 1kHz/Dev. 75kHzReceptionFrequency98MHz(P5)AUTOSCANAdjustmentPointVR801Only confirmAdjustmentValueTUNEDindicate on VFDTUNEDindicate on

22、 VFD- 9-2stepInput Signal SourceConnectionSignalFrequencySource Signal Output Level andModulationReceptionFrequencyAdjustmentPointAdjustmentValue11395kHz(230,230RDS)1400kHz(120)CT8015. AM-Tr a c k i n gAd j u s t me n t ( MW)Signal Generatoroutput to transmissionloop antenna(standard required loop)5

23、mV/ m(74dBu)400HzMOD.30%594kHz(230,230RDS)600kHz(120)594kHz(230,230RDS)600kHz(120)T801Output level(L or R)atTAPE-OUTMi n i mu mOutput level(L or R)atTAPE-OUTMi n i mu m6 . AMIFAd j u s t me n tstepInput Signal SourceConnectionSignalFrequencySource Signal Output Level andModulationReceptionFrequencyA

24、djustmentPointAdjustmentValueT803Output level(L or R)atTAPE-OUTMa x i mu mSignal 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-OUTMa x i mu m1stepInput Signal SourceCo

25、nnectionSignalFrequencySource 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. AMOS C Ad u

26、j s t me n t3002stepInput Signal SourceConnectionSignalFrequencySource Signal Output Level andModulationReceptionFrequencyAdjustmentPointAdjustmentValue17 . AM a u t os t o pAd j u s t me n tSignal Generatoroutput to transmissionloop antenna(standard required loop)1000uV/ m(60dBu)400HzMOD.30%AUTO SC

27、ANTUNEDindicate onVFD999kHz(230,230RDS)1000kHz(120)999kHz(230,230RDS)1000kHz(120)OnlyConfirmVR802TUNEDindicate onVFD8 . Ma i nAmpl d l i n gc u r r e n t Ad j u s t me n t(4) CAUTIONshould be adjusted again*FRONT AMP: Q433Q440*CENTER AMP: Q517Q520*SURROUND AMP: Q633Q6401) In case that POWER TR or DR

28、EVE 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

29、over than 5MIN. (K eep 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 c

30、hVR401VR402VR501VR601VR602WA401WA402WA501WA601WA602CHANNE LADJ US TME NTME AS UR E ME NTOTHE R S- 1 0-103mV103mV103mV103mV103mVV OL AGE9 . Ma i nAmpDC OF F S E T V OL TAGEAd j u s t me n t(4) CAUTIONshould be adjusted again*FRONT AMP: Q401Q440, Q411Q414*CENTER AMP: Q501, Q502, Q506, Q507*SURROUND AM

31、P: 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

32、, 230V/ 50Hz(2) After turning on the unit, keep it over than 5MIN. (K eep 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 chVR4

33、03VR404VR502VR603Vr604J K401J K402J K501J K601J K601CHANNE LADJ US TME NTME AS UR E ME NTOTHE R S0mV0mV0mV0mV0mVV OL AGE1 0 . Ca u t i o n sf o r ma i nAmpa d j u s t me n t(1) At MAIN/ SURROUND BOARD, use the below condensors after discharging for sufficent timefor preventing possible damage from e

34、lectrical spark.(2) The checker for MAIN/ SURROUND BOARD should have the discharging circuit.Discharge over 30sec. through (407ohm 10w) resistor after turning offMAIN B OAR DC48 1 , C48 2( 1 0 0 0 0 / 6 3 V , 8 2 0 0 u F / 6 3 V )S UR R OUNDB OAR DC6 9 1 , C6 9 2( 6 8 0 0 / 6 3 V , 6 8 0 0 u F / 50

35、V )300DISASSEMBLY PROCEDUREDISASSEMBLY PROCEDURE1. Removingthe top cover , andRemovescrews4. Removingthe main PCBblock, andRemovescrews2. Removingthe front panel,andRemovescrews5. Removingthe power PCBblock, andRemove3. Removingthe rearpanel,andRemovescrews1. Removeall of the screwson Rearpanel.2. R

36、emovethe Rearpanel.3. RemovePCBBrk t and Guide5. Removethe Main PCBblock.Brk t from Main Assy.4. Removeall of the screwsthat connectwith main Assy.1. Remove4 screwson Rearpanel.2. Removethe Rearpanel.3. RemovePCBBrk t and Guide4. Removethe SUBPCBblock.Brk t from Main Assy.1. RemoveMain2. Removevolum

37、eand rotary knob from the front3. Removeall of the screwson backsideof F ront function PCB.4. Removethe F ront function PCB.Assy.Assy.1. RemovePCBBrk t and Guide3. Removethe POWER PCBblock.Brk t from Main Assy.2. Remove4 screwsfor P ower PCBmounting6. Removingthe subPCBblock, andRemovescrewsMAIN AMP

38、 PCB BLOCKMAIN AMP PCB BLOCKSUB PCB BLOCKSUB PCB BLOCKFRONT PCB BLOCKFRONT PCB BLOCKPOWER PCB BLOCKPOWER PCB BLOCK- 17 -1234567BCDEFGHIJA1234567BCDEFGHIJA1234567BCDEFGHIJA1234567BCDEFGHIJAELECTRICAL PARTS LIST(300Series) DSP P.C. BOARDREF NO.PART NO.DESCRIPTIONREF NO.PART NO.DESCRIPTIONJ1320035205XD

39、SP P.C. BOARDIBBEADsJ1320035105XDSP P.C. BOARDBKL 704 J2631200010X HC3550 9.4ohmAXIALL 705 J2631200010X HC3550 9.4ohmAXIALINTEGRATED CIRCUITsL 706 J2631200010X HC3550 9.4ohmAXIALIC 1 J2142930002X 74VHCT04SJXHEX INVERTL 707 J2631200010X HC3550 9.4ohmAXIALIC 2 J2120012001X NJM4558MOP-AMPL 708 J2631200

40、010X HC3550 9.4ohmAXIALIC 701 J2120012002X NJM072MOP-AMPL 709 J2631200010X HC3550 9.4ohmAXIALIC 702 J2120012002X NJM072MOP-AMPL 821 J2631200010X HC3550 9.4ohmAXIALIC 703 J2133926002X CS5360-KSA/D CONVERTERIC 704 J2142930001X 74VHC153SJXMULTIPLEXERR 6 J2631300174X HB-1T2012-601CHIPIC 705 J2129012001X

41、 NJU6324MQUARTZ OSCR 7 J2631300174X HB-1T2012-601CHIPIC 706 J2136926001X CS8414-CSDIGITAL AUDIO Rx.R 13 J2631300184X HB-1T2012-202CHIPIC 707 J2142930003X 74VHCT244SJXOCTAL NON-INVERTR 14 J2631300174X HB-1T2012-601CHIPIC 708 J2135326003X CS492604DDECODERR 15 J2631300174X HB-1T2012-601CHIPIC 709 J2131

42、003001X KM23C4000DG-8ROM-0001R 17 J2631300174X HB-1T2012-601CHIPIC 709 J2131328002X AT27C040-100JCROM OTPR 18 J2631300174X HB-1T2012-601CHIPIC 710 J2142930004X 74VHCT574SJXOCTAL D-FILP FLOPR 19 J2631300174X HB-1T2012-601CHIPIC 711 J2142930004X 74VHCT574SJXOCTAL D-FILP FLOPR 109 J2631300174X HB-1T201

43、2-601CHIPIC 712 J2132321002X HD404354A52HMCU-0002R 731 J2631300174X HB-1T2012-601CHIPIC 712 J2132321001X HD407A435PHSUB-u-COM OTPR 732 J2631300174X HB-1T2012-601CHIPIC 713 J2133926003X CS4341-KSD/A CONVERTERR 734 J2631300174X HB-1T2012-601CHIPIC 714 J2133926003X CS4341-KSD/A CONVERTERR 755 J26313001

44、74X HB-1T2012-601CHIPIC 715 J2133926003X CS4341-KSD/A CONVERTERR 756 J2631300174X HB-1T2012-601CHIPIC 716 J2120012002X NJM072MOP-AMPR 760 J2631300174X HB-1T2012-601CHIPIC 717 J2120012002X NJM072MOP-AMPR 767 J2631300174X HB-1T2012-601CHIPIC 718 J2120012002X NJM072MOP-AMPR 781 J2631300174X HB-1T2012-6

45、01CHIPIC 719 J2142930006X 74VHCU04MXHEX INVERTR 782 J2631300174X HB-1T2012-601CHIPIC 720 J2112504001X BA033TREGULATOR 3.3VR 785 J2631300174X HB-1T2012-601CHIPIC 722 J2120012001X NJM4558MOP-AMPR 799 J2631300174X HB-1T2012-601CHIPIC 723 J2120012001X NJM4558MOP-AMPR 800 J2631300174X HB-1T2012-601CHIPIC

46、 724 J2120012001X NJM4558MOP-AMPR 817 J2631300174X HB-1T2012-601CHIPIC 725 J2120012001X NJM4558MOP-AMPR 818 J2631300174X HB-1T2012-601CHIPR 839 J2631300174X HB-1T2012-601CHIPTRANSISTORsR 840 J2631300174X HB-1T2012-601CHIPQ 703 J2021000201X KTA1266-YPNPR 853 J2631300174X HB-1T2012-601CHIPQ 704 J20212

47、20101X KRC101MNPNR 854 J2631300174X HB-1T2012-601CHIPQ 705 J2021200101X KRA101MPNPR 869 J2631300174X HB-1T2012-601CHIPQ 706 J2021060001X KTD1302-BNPNR 870 J2631300174X HB-1T2012-601CHIPQ 707 J2021060001X KTD1302-BNPNQ 708 J2021220101X KRC101MNPNRESISTORsQ 709 J2021200101X KRA101MPNPR 822 J3013561320

48、X 1/5WCARBON560W-JQ 710 J2021060001X KTD1302-BNPNQ 711 J2021060001X KTD1302-BNPNR 1 J3024101120X 1/10W CHIP100W-JQ 712 J2021220101X KRC101MNPNR 2 J3024222120X 1/10W CHIP2K2W-JQ 713 J2021200101X KRA101MPNPR 3 J3024473120X 1/10W CHIP47KW-JQ 714 J2021060001X KTD1302-BNPNR 4 J3024473120X 1/10W CHIP47KW-

49、JQ 715 J2021060001X KTD1302-BNPNR 5 J3024222120X 1/10W CHIP2K2W-JQ 716 J2021220301X KRC103MNPNR 8 J3024472120X 1/10W CHIP4K7W-JR 9 J3024472120X 1/10W CHIP4K7W-JDIODEsR 10 J3024101120X 1/10W CHIP100W-JD 705 J2221010100X 1SS133SW.R 11 J3024474120X 1/10W CHIP470KW-JD 706 J2221010100X 1SS133SW.R 12 J302

50、4474120X 1/10W CHIP470KW-JR 701 J3024203120X 1/10W CHIP20KW-JCOILsR 702 J3024203120X 1/10W CHIP20KW-JL 701 J2616247020X AXIAL LAL0247uH-KR 703 J3024103120X 1/10W CHIP10KW-JL 702 J2616247020X AXIAL LAL0247uH-KR 704 J3024103120X 1/10W CHIP10KW-JL 703 J2616247020X AXIAL LAL0247uH-KR 705 J3024103120X 1/