Denon-DRA395-rec-sm维修电路原理图.pdf

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1、Hi-Fi AM-FM Stereo ReceiverSERVICE MANUALMODELDRA-395AM-FM STEREO RECEIVERSAFETY PRECAUTIONS. 2SPECIFICATIONS . 2DISASSEMBLY . 3ADJUSTMENT. 4,5BLOCK DIAGRAM . 6LEVEL DIAGRAM . 7SEMICONDUCTORS .812PRINTED WIRING BOARDS .1317NOTE FOR PARTS LIST. 18PARTS LIST OF P.W.B. UNIT ASSY .1924EXPLODED VIEW . 25

2、PARTS LIST OF EXPLODED VIEW . 26PACKING VIEW . 27 TABLE OF CONTENTS ?Some illustrations using in this service manual are slightly different from the actual set.PARTS LIST OF PACKING & ACCESSORIES . 27WIRING DIAGRAM. 28SCHEMATIC DIAGRAMS .2934(1/6)INPUT UNIT . 29(2/6)VOLUME UNIT . 30(3/6)MAIN UNIT .

3、31(4/6)VIDEO UNIT . 32CONNECTOR UNIT . 32(5/6)FRONT UNIT. 33SWITCH UNIT . 33POWER SW/HP UNIT. 33(6/6)TUNER UNIT. 34For U.S.A. & Canada model14-14, AKASAKA 4-CHOME, MINATO-KU, TOKYO 107-8011 JAPANTelephone: 03 (3584) 8111X0118 842 NC 0108RadioFans.CN 收音机爱 好者资料库2DRA-395SPECIFICATIONS? ? ? ? ? Audio Se

4、ction(Power Amplifier)Rated output:80W + 80W (8/ohms, 20Hz 20kHz with 0.08% T.H.D.)Output terminals:A or B4 to 16/ohmsA + B8 to 16/ohms(Analog)LINE input - PRE OUT Input sensitivity/input impedance:200mV/47k/kohms Frequency response:10Hz 50kHz: 1.5dB S/N ratio:100 dB (IHF-A weighted) Total harmonic

5、distortion:0.009% (3dB at rated output, 8/ohms) (1kHz) Rated output:1.2VPHONO input - REC OUT Input sensitivity/input impedance:2.5mV/47k/kohms RIAA deviation:0.5dB (20Hz 20kHz) S/N ratio:74dB (IHF-A weighted, with 5mV input) Total harmonic distortion:0.03% (1kHz, 3V) Rated output/Maximum output:150

6、mV/7V? ? ? ? ? Video Section(Standard Video Jacks)Input/output level and impedance:1V p-p, 75/ohmsFrequency response:5Hz 10MHz +1, 3dB? ? ? ? ? Tuner SectionFM (note: V at 75/ohms, 0dBf = 110-15W)AMReceiving range:87.50MHz 107.90 MHz520kHz 1710kHzUsable sensitivity:1.4V (14.2dBf)18V50dB quieting sen

7、sitivity:MONO2.8V (20.2dBf)STEREO23V (38.5dBf)S/N ratio:MONO80dB (IHF-A weighted)STEREO75dB (IHF-A weighted)Total harmonic distortion:MONO0.15% (1kHz)STEREO0.3% (1kHz)? ? ? ? ? GeneralPower supply:AC120V, 60HzPower consumption:3.39AMaximum external dimensions:434 (W) 147 (H) 417 (D) mm (17-1/16 5-25

8、/32 16-7/16)Weight:9.7kg (21lbs 6oz)? ? ? ? ? Remote Control Unit (RC-894)Batteries:R03/AAA Type (two batteries)External dimensions:64 (W) 206 (H) 19 (D) mm (2-13/64 8-9/32 3/4)Weight:140g (Approx. 4.9 oz) (including batteries)* For purposes of improvement, specifications and design are subject to c

9、hange without notice.SAFETY PRECAUTIONSThe following check should be performed for the continued protection of the customer and service technician.LEAKAGE CURRENT CHECKBefore returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassisresistance

10、check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of thepower cord is less than 460 kohms, the unit is defective.RadioFans.CN 收音机爱 好者资料库3DRA-395DISASSEMBLY (Follow the procedure below in reverse order when reassembling)Top CoverRemove 6 screws 1 an

11、d 3 screws 2, detach the Top Coverin the arrow direction.Top CoverFront Panel1. Remove 4 screws 3 and 2 screws 4.2. Detach the Front Panel in the arrow direction.2113Rear Panel1. Remove cord bushing 5 from the Rear Panel.2. Remove 26 screws 6.3. Detach the Rear Panel in the arrow direction.4Front Pa

12、nelRear Panel56664DRA-395FM ALIGNMENTInputOutputAdjustmentStepAlignmentItemTuningFrequencySettingTypeFrequencyInputLevelModulationCouplingTypeConnect toPointsAdjust to1CenterAdjustment98.1MHz(98.0MHz)FM SSG98.1MHz60dBMono1kHz 100%AntennaTerminalDigitalVoltmeterR471T402 50mV2Distortion98.1MHz(98.0MHz

13、)FM SSG98.1MHz60dBMono1kHz 100%AntennaTerminalDistortionMeterOutputTerminal (L)T403MinimumDistortion3Repeat Steps 1 and 24Signal Level98.1MHz(98.0MHz)FM SSG98.1MHz20dBOFFAntennaTerminalLight “TUNED” onFL DisplayVR402ADJUSTMENTTuner SectionCONNECTION DIAGRAM OF MEASURING INSTRUMENTS? FMSTEREOMODULATO

14、RFM SSGDigitalVoltmeter75ohmT402T403IC402VR402TUNER BDR47120+1410dB? AMT402T403IC402TUNER BDR471VR401AM ALIGNMENTOutputAdjustmentStepAlignmentItemFrequencyInputTypeConnect toPointsAdjust toRemarks1Signal Level999 (1000)kHzAM SSGVR401Light “TUNED” onFL DisplaySSG OUTPUT74dB (EMF)5DRA-395Audio Section

15、Idling CurrentRequired measurement equipment : DC VoltmeterPreparation(1)Avoid direct blow from an air conditioner or an electric fan, and adjust the unit at normal room tempereture15 C 30 C (59 F 86 F).(2)PresettingG POWER (Power sourse switch)OFFG SPEAKER (Speaker terminal)No load (Do not connect

16、speaker, dummy resistor, etc.)Adjustment(1)Remove top cover and set VR101, VR102 on Amp. Unit at full counterclockwise ( ) position.(2)Connect DC Voltmeter to test points (Lch: TP101, Rch: TP102).(3)Connect power cord to AC Line, and turn power switch ON.(4)Presetting.MASTER VOLUME : - counterclockw

17、ise ( min.)FUNCTION: CD(5)Within 2 minutes after the power on, turn VR101 clockwise ( ) to adjust the TEST POINT voltage to 1.5 mV 0.5 mVDC.(6)After 10 minutes from the preset above, turn VR101 to set the voltage to 2.5 mV 0.5 mV DC.(7)Adjust the Variable Resistors of other channels in the same way.

18、VR101TP101VR102TP102LchRch87654321ABCDEDRA-3956BLOCK DIAGRAMCD112384658747658465874111ATTMUTEPOWER AMPMAIN VOLINPUTBUFFERAMPATT1111MAINMULTI ROOMCD IN-18dBVOL 00+15.5dB-35.5dB+16.2dB+27dBSPK OUT2.83V(1W/8ohms)H/P OUT 47mV(1W/8ohms)MULTI ROOM OUT1.2V(200mV)(200mV)SPK OUTH/P OUTMULTI OUT87654321ABCDED

19、RA-3957LEVEL DIAGRAM1303150518081100CXP82840-319Q Terminal FunctionSEMICONDUCTORS? ? ? ? ? ICsCXP82840-319Q (IC900)1G2/A1OFL G022G1/A0OFL G013NC(Vdd)INC(Connect to Vdd)4POWER DOWNIAC OFF Detect5ENC VOLUME UPIEncoder VOLUME UP6RDS CLOCKIRDS clock input(TDA7330)7ENC VOLUME DOWNIEncoder VOLUME DOWN8REM

20、OCONIRemote signal input.9PROTECTIONIProtection detecting input.10SUB ZONE2 LEDOZONE3 LED indicator control11SUB ZONE1 LEDOZONE2 LED indicator control1262446 LATCHOElectronic volume control.(M62446 LATCH)13FUNCTION SW 1 CEOFunction IC control.(TC9274 CE)14FUNCTION 1/2 DATAOFunction IC control.(TC927

21、4 DATA)15FUNCTION 1/2 CLOCKOFunction IC control.(TC9274 CLOCK)16VOLUME,PLL,4094,DATAOLC72131,M62446,KIC9459,TC9184,TC4094(DATA)17VOLUME,PLL,4094,CLOCKOLC72131,M62446,KIC9459,TC9184,TC4094(CLOCK)18TUNEDITUNED signal in.19STEREOISTEREO signal in.20IF COUNTIPLL data in.(LC72131)21TUNER MUTEOTuner mute

22、output.22PLL CEOLC72131(CE)234094 STBOTC4094(STB)24VOLUME STBOKIC9459,TC9184(STB)25SUB 1 MUTEOZONE2 mute control.26MAIN MUTEOMAIN,Subwoofer mute output.27POWER RELAYOPower supply relaycontrol.28AV REF.IReference voltage input for A/D converter.291511 DATAONot used.30RDS DATAINot used.31KEY IN 1IKey

23、input 132KEY IN 2IKey input 233KEY IN 3IKey input 334STEP OPTIONIArea select.35SET OPTIONIModel select.36SPEAKER A LED 1OSPEAKER A LED indicator control37A VSSIA/D converter GND.38RESETILow-level active,system reset.39EXTALIEXTAL(10MHz)40XTALOXTAL(10MHz)41VSSIGND42NC(TX)ONot used.43G(TEX)IGND44VDDIV

24、cc SUPPLY.45VFDPIFDP voltage supply.PinNo.Pin NameFunctionI/OPinNo.Pin NameFunctionI/O46SPEAKER B LED 2OSPEAKER B LED indicator control47STBY LED 3OSTANDBY LED indicator control48PD2/A53OFL P3849PD3/A52OFL P3750PD4/A51OFL P3651PD5/A50OFL P0152PD6/A49OFL P0253PD7/A48OFL P0354PF0/A47OFL P0455PF1/A46OF

25、L P0556PF2/A45OFL P0657PF3/A44OFL P0758PF4/A43OFL P0859PF5/A42OFL P0960PF6/A41OFL P1061PF7/A40OFL P1162PG0/A39OFL P1263PG1/A38OFL P1364PG2/A37OFL P1465PG3/A36OFL P1566PG4/A35OFL P1667PG5/A34OFL P1768PG6/A33OFL P1869PG7/A32OFL P1970PH0/A31OFL P2071PH1/A30OFL P2172PH2/A29OFL P2273PH3/A28OFL P2374PH4/A

26、27OFL P2475PH5/A26OFL P2576PH6/A25OFL P2677PH7/A24OFL P2778A23OFL P2879A22OFL P2980A21OFL P3081A20OFL P3182A19OFL P3283A18OFL P3384A17OFL P3485A16OFL P3586G16OFL G1687G15OFL G1588G14OFL G1489VddIVcc SUPPLY.90G13OFL G1391G12OFL G1292G11OFL G1193G10OFL G1094G9OFL G0995G8OFL G0896G7OFL G0797G6OFL G0698

27、G5OFL G0599G4OFL G04100G3OFL G038DRA-3951_CXP82840.p6501/08/18, 15:40Page 8-9Adobe PageMaker 6.5J/Win9DRA-395LA1266 (IC402)10413819151718142122GNDV cc511IFBUFFERIFBUFFER2FM - IF6Q.D.7REG23OSCOSCBUFFER24NARROWS-METERS-METER16LEDDRIVERRFMIX1220AM-IFDETAGCPOSTAMP913AM-IFFM-IFFM-INAM - INTC9184AP (IC602

28、)2345611678910151413BASS+BASS?COMTREBLE?TREBLE+VSSVDDGNDCKDATASTBBASS+BASS?COMTREBLE?TREBLE+Ladder resisterAnalog switch13 bit latch circuitLevel shift20 bit Shift register circuitAnalog switchLadder resisterLadder resisterAnalog switch13 bit latch circuitCodedetectcircuitAnalog switchLadder resiste

29、r 20191817161514131298756121LA3401 (IC403)22VOLREGOSCSYMMETRICALREOCTANCECIRCUITPHASECOMPARATORVCO STOPPILOT DETFFFFFF38kHzFF38kHz 90FF19kHz 90MUTING FM AM CHANGERoRcRcRb234DECODERMUTING CONTROLFM AM CHANGE OVERVcc ONMUTINGMUTINGOUTPUTSTEREOSWITCHTRIGGERLAMPDRIVERRb1011LC72131M (IC401)12021931841751

30、66157148139121011XINCEDICLDOBO1BO2BO3BO4IO1AOUTAINPDVDDFMINAMINIO2IFINV ssXOUTBA7625 (IC501)12345678161514131211109Monitor OUTGNDIN5GNDIN4CTL EIN3CTL DIN1CTL AV OUT1VccIN2CTL BV OUT2CTL C6dB6dBLOGICLOGICABEMONITOR OUTCDEV OUT 1CDEV OUT 2LL*IN 1LL*?LL*IN 1HL*IN 2HL*IN 2HL*?LH*IN 3LH*IN 3LH*IN 3HHLIN

31、4HHLIN 4HHLIN 4HHHIN 5HHHIN 5HHHIN 5 Note 1: * mark means that feasible for either H or L. Note 2: Each input terminal is provided with sink chip clamp (BA7625). Each input terminal takes 20kohm at the end (BA7626).111212345678161514131211109VssBASS+BASS?CONTREBLE?TREBLE+GNDCKVDDBASS+BASS?COMTREBLE?

32、TREBLE+STBDATA12345678910111224232221201918171615141310DRA-395ABLCGNDVcc16 115 214 313 412 511 610 7 9 8STRDCPQP0QP1QP4QP5QP6QP7QS2QS1QP3QP2GNDOE424140393837363534333231302928272625242322 1 2 3 4 5 6 7 8 9101112131415161718192021OUT4OUT3OUT2OUT1AVDDDVDDSWOUTSROUTSLOUTCOUTROUTLOUTAVSSSWinGNDSSRinSLin

33、GNDCCinDNDRRinGNDLLinBYPASSRBLPASSLLTRELBASS3LBASS2LBASS1CLKDATALATCHDGNDAGNDCL1CL2CR1CR2RTRERBASS3RBASS2RBASS1tonetoneOUTPUTPORTMCU I/FVCCVOUT22kohmB.P.FPDvolumevolumevolumevolumevolumevolumeTC9274N-008 (IC303)M62446FP (IC603)PC74HC4094 (IC604)?ICP-N15 (IC105)? P43T7D330BW16NJL64H380A(RMC900)IC PRO

34、TECTORIR SENSOR?POSISTORDetectorComparatorLimiterAmpHead AmpFRONT VIEWFRONT VIEWVoutGNDVccFRONT VIEWA OUTPUTA INPUTA+INPUTVB OUTPUTVB INPUTB +INPUT12345786NJM2068DD (IC300302, 605610)87564321ABLCHeadAmpLimiterAmp+ INC1C2 GNDfo NCOUT VccCXA1511M(IC502)8 17 26 35 4INC1C2GNDNCfoOUTVCCKIC9459F (IC601)12

35、3456789101112242322212019181716151413VssL-OUTNCL-INL-LD1L-LD2L.A.GNDNCCS1NCGNDCKVDDR-OUTNCR-INR-LD1R-LD2R.A.GNDNCCS2NCSTBDATAL-chR-chKIA7805AP (IC103)NJM7805FA (IC104)KIA7815AP (IC101)NJM7915FA (IC102)InputGNDOutputFRONTVIEWGNDInputOutputFRONTVIEW42S141S1S14039S138S1S1S137S136S735S842S1S534S14242424

36、233S1032S1131S123042424242S1329S1428S1527S162642424242S1725S18242322STBDATAS9S6S1S3S4S2VDD1234567S78S8S5910S1011S1112S1213S1314S1415S1516S1617S1718S18192021GNDCKS9S6S1S3S4S2VSSBPFBEFDetector &ComparatorIntegratorHysteresisComparator11DRA-3952SD947FKTA1266YKSA992FKSC1845FKTC3200BLKTC3198YKTA1268BLKSA

37、916Y2SC1740SKTC2874BKTC3880SDTA114EKDTA114YK DTC114YKTOPVIEWEBCTOPVIEWEBCFRONTVIEWBCETOP VIEWKDS160MTZJ3.3BMTZJ5.1BMTZJ5.6BMTZJ6.2BMTZJ6.8BMTZJ7.5AMTZJ7.5BMTZJ18BMTZJ20B1N40071SS133BCER1R2BCER1R22SB15602SD2390FRONTVIEWECBDTA114ESDTA144ESDTC114ESDTC114YSDTC144ESFRONTVIEWBCEDTA seriesDTC seriesDTA114E

38、KDTA114YKR110kohm R210kohm 10kohm 47kohm DTA114ES10kohm 10kohm DTA114ES47kohm47kohmDTC114YKR1R210kohm 47kohmDTC144ES47kohm 47kohmDTC114YS10kohm 47kohm DTC114ES10kohm 10kohm TOP VIEWHL-50RDRF4KBPC604TRANSISTORS? DIODES (LED Included)12DRA-395FL DISPLAY16-st-42GNK (FL900)S38S14S9S1S2S3S4S5S12S13S7S15S

39、6S10S11G1G1G2G3G4G5G6G7G16G15G13G12G10G9F2F1158G14G11G8G2G1612345678910111213141516171819232425262728293031323334F1F1S1S2S3S4S5S6S7S8S9S10 S11 S12 S13 S14 S15 S16 S172021223536373839404142434445464748495051525354555657S18S19 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 S30 S31 S32 S33 S34 S35 S36S37 S38G

40、16 G15 G14 G13 G12 G11 G10G9G8G7G6G5G4G3G2G1F2F258F1,F2 : FilamentG1G16 : GridS1S38 : AnodeS13S14S15S16S17S18S19S20S21S22S23S24G1G2G3G4G5G6G7G8G9G10G11G12G13G14G15G16S38S36S37S38? 2DBSTV? 1VDPTAPE/(DVD)/(MD)AUXDVDMDV.AUXTUNER? 2? 3CD? 1PHONOVCRRECMULTISTEREOAUTOTUNEDRDSCHS1S2S3S4S5S6S7S8S9S10S11S12S

41、1S2S3S4S5S6S7S9S10S11S12S1S2S3S4S5S6S7S8S9S10S11S12S13S14S15S16S17S18S19S20S21S22S23S24S13S14S15S25S26S27S28S29S30S31S32S33S34S35S25S26S27S28S29S30S31S32S33S34S35G2G16G1G2G16G1G2G16G1G2G16G1DIGITALPRO LOGICS1S6S11S16S21S26S31S2S7S12S17S22S27S32S3S8S13S18S23S28S33S4S9S14S19S24S29S34S5S10S15S20S25S30S

42、35TUNEDRDSSTEREOAUTORECMULTIPHONOVCRCD?1TUNER?2?3V.AUXAUXMDDVD /TAPEVDPTV?1?2/DBSPRO LOGICDIGITALDIGITALANALOGTUNEDRDSSTEREOAUTORECMULTIPHONOVCRCD? 1TUNER? 2 ? 3V.AUXAUXMDDVD/TAPEVDPTV? 1? 2/ DBSCHCHPRO LOGICDIGITALDIGITALANALOGPin AssignmentAnode & Grid AssignmentPIN NO.CONNECTIONPIN NO.CONNECTIONP

43、IN NO.CONNECTION13131311011187654321ABCDEDRA-39513MAIN P .W.B. UNIT AssyCOMPONENT SIDEPRINTED WIRING BOARDS111611131101111222231111232221111387654321ABCDEDRA-39514COMPONENT SIDEFRONT P .W.B. UNIT Assy1810922422111120101132412187654321ABCDEDRA-39515FOIL SIDE11101311187654321ABCDEDRA-39516TUNER P .W.B

44、. UNIT AssyCOMPONENT SIDE87654321ABCDEDRA-39517FOIL SIDE18DRA-395ttttl l l l lResistorsEx.:RN14K2E182GFRType ShapePower Resist- Allowable Othersand per-anceerrorformancettttssss Resistance1 821800 ohm = 1.8 kohmIndicates number of zeros after effective number.2-digit effective number. Units: ohm1 R2

45、1.2 ohm1-digit effective number.2-digit effective number, decimal point indicated by R. Units: ohml l l l lCapacitorsEx.:CE04W1H2R2MBPTypeShapeDielectric Capacity Allowable Othersand per- strengtherrorformancessssss Capacity (electrolyte only)2 222200FIndicates number of zeros after effective number

46、.2-digit effective number. Units: F.2 R22.2F1-digit effective number.2-digit effective number, decimal point indicated by R. Units: F. Capacity (except electrolyte)2 222200pF=0.0022F(More than 2)Indicates number of zeros after effective number.2-digit effective number. Units: pF.2 21220pF(0 or 1)Ind

47、icates number of zeros after effective number.2-digit effective number. Units: pF. When the dielectric strength is indicated in AC, AC is included after the dieelectricstrength value.ssNOTE FOR PARTS LISTlPart indicated with the mark ? are not always in stock and possibly to take a long period of ti

48、me for supplying, or insome case supplying of part may be refused.lWhen ordering of part, clearly indicate 1 and I (i) to avoid mis-supplying.lOrdering part without stating its part number can not be supplied.lPart indicated with the mark is not illustrated in the exploded view.lNot including Carbon

49、 Film 5%, 1/4W Type in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.)WARNING:Parts marked with this symbol have critical characteristics.Use ONLY replacement parts recommended by the manufacturer.RD : Carbon2B : 1/8WF:1%P:Pulse-resistant typeRC : Composition2E : 1/4WG:2%

50、NL :Low noise typeRS : Metal oxide film2H : 1/2WJ:5%NB :Non-burning typeRW : Winding3A : 1WK:10%FR :Fuse-resistorRN : Metal film3D : 2WM:20%F:Lead wire formingRK : Metal mixture3F : 3W3H : 5WCE :Aluminum foil0J : 6.3VF : 1%HS: High stability typeelectrolyticCA :Aluminum solid1A : 10VG : 2%BP : Non-p