Kenwood-KRFVR209-avr-sm 维修电路原理图.pdf

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1、AV SURROUND RECEIVERKRF-V7510D/VR-208KRF-V8010D/VR-209SERVICE MANUAL 1998-4/B51-5419-00 (K/K) 1796ASPEAKERSBBASS BOOSTMONITORSOURCEDIRECTINPUT MODE LISTEN MODESOUNDSETUPMULTI CONTROLINPUT SELECTORVOLUME CONTROLDOLBY DIGITALCLIP INDICATORDOWNUPSTANDBYAV SURROUND RECEIVERON / STANDBYPHONES- ON OFFPOWE

2、RDIMMERP.CALLP.CALLBANDAUTOMEMORYREC OUTPHONOCDMD / TAPEMONITORPLAY INREC OUT PLAY INLRVIDEO 2DOLBY DIGITAL / PCM INVIDEO 3VIDEO 1VIDEO 1VIDEO 2VIDEO 3VIDEO 1VIDEO 2VIDEO 3REC OUTPLAY INPLAY INPLAY INMONITORVIDEO INVIDEO OUTFM75GNDAMANTENNA()SYSTEM CONTROLSL16(XS8)SUBWOOFERSURROUNDPRE OUTCENTERLRCEN

3、TER SPEAKERFRONT SPEAKERS+-RAL CSURROUND SPEAKERSFRONT SPEAKERSLR+-+-LRBIndicator(B12-0340-04)Lock terminal board(E70-0080-05)Phono jack(E63-1021-05)Phono jack(E63-1022-05)Power cord bushing(J42-0083-05)AC power cord *(E30-)KENWOOD badge(B43-0302-04)Knob(K29-6879-02)Front glass(B10-2426-02)Knob(K29-

4、6898-03)Knob(K29-6880-04)Knob (BUTTON)(K27-2274-04)Phono jack x 2(E63-0172-05)Lock terminal board(E70-0068-05)AC outlet *(E03-)Metallic cabinet(A01-3534-01)Foot(J02-1405-03)Foot(J02-1405-03)Phone jack(3P)(E11-0295-05)Knob(K29-6879-02)Knob(K29-6881-04)Panel *(A60-)Miniature phone jack(2P)(E11-0347-05

5、)Phono jack x 2(E63-0173-05)Screw terminal board(E70-0089-05)* Refer to parts list on page 32.Slide switch(S62-0034-05)Phono jack(E63-1020-05)Optical receiving module(W02-1181-05)Phono jack(E63-1015-05)VR-208(K) COVER-2P( 98.4.24 16:31 y W 2RadioFans.CN 收音机爱 好者资料库KRF-V7510D/V8010D/VR-208/2092CONTENT

6、S / ACCESSORIESContentsCONTENTS / ACCESSORIES .2CONTROLS .3DISASSEMBLY FOR REPAIR.5BLOCK DIAGRAM .6CIRCUIT DESCRIPTION.7ADJUSTMENT.11PC BOARD .12SCHEMATIC DIAGRAM .17EXPLODED VIEW .31PARTS LIST.32SPECIFICATIONS .41AccessoriesFM (T90-0810-05)(A70-1194-05) : KP1Y1K1P2Y2M1(A70-1195-05) : VBattery cover

7、 (A09-0366-08)(E03-0115-05)indoor antenna (1)(T90-0833-05)Loop antenna stand (1)Remote control unit (1)Batteries (R03/AAA) (4)*AC plug adaptor (1)*Use to adapt the plug on the powercord to the shape of the wall outlet.(Accessory only for regions where useis necessary.)AM loop antenna (1)Resetting th

8、e MicrocomputerIf the microcomputer may malfunction (unit cannot be operated,or shows an erroneous display) if the power cord is unpluggedwhile the power is ON, or due to some other external factor. If thishappens, execute the following procedure to reset the micro-computer and return the unit to it

9、s normal operating condition.Unplug the power cord from the wall outlet, then plug itback in while holding down the POWER key.Please note that resetting the microcomputer will clear the contentsof the memory and returns the unit to the state it was in when it left thefactory.With the power cord plug

10、ged in, turn the POWER keyOFF. Then, while holding down the ON/STANDBY key,press POWER.For U.S.A. and CanadaFor other countriesVR-208(K) COVER-2P( 98.4.24 16:31 y W 3RadioFans.CN 收音机爱 好者资料库KRF-V7510D/V8010D/VR-208/2093CONTROLSASPEAKERSBBASS BOOSTMONITORSOURCEDIRECTINPUT MODE LISTEN MODESOUNDSETUPMUL

11、TI CONTROLINPUT SELECTORVOLUME CONTROLDOLBY DIGITALCLIP INDICATORDOWNUPSTANDBYAV SURROUND RECEIVERON / STANDBYPHONES- ON OFFPOWERPOWERSTANDBYON / STANDBYDIMMERP.CALLP.CALLBANDAUTOMEMORY* *;FM AMkHzMHz3 STEREOBS.DIRECTASPMUTEDOWNMIXMONITORPRO LOGICTUNEDMEMO.AUTOST.AUTO SOUNDSSWCRSRLSLLFEDIGITAL2394 5

12、7 860?)%$#!& *(1DisplaySpeaker selection indicatorsInput channel indicatorsOutput channel indicatorsAUTO SOUND indicatorBand indicatorsAUTO indicatorMEMO. indicatorST. indicatorTUNED indicator3 STEREO indicatorSTEREO indicator1 POWER key(For U.S.A. and Canada)Use to turn the power ON/OFF.STANDBY ind

13、icator1 ON/STANDBY () key(Except for U.S.A. and Canada)Use to switch the power ON/STANDBYwhen the POWER is turned ON.STANDBY indicator2 POWER key(Except for U.S.A. and Canada)Use to turn the main power ON/OFF.3 DOLBY DIGITAL indicatorLights when the receiver is in the DolbyDigital mode.4 CLIP INDICA

14、TORLights when the input signal is too large tobe handled by the receiver, and clippingis occurring.5 DIMMER keyUse to adjust the brightness of the display.6 P.CALL keysUse to call up previously registered radiostations.7 BAND keyUse to select the broadcast band.8 AUTO keyUse to select the auto tuni

15、ng mode.9 MEMORY keyUse to store radio stations in the presetmemory.0 VOLUME CONTROL knob! PHONES jackUse for headphone listening. SPEAKERS A/B keysUse to turn the speakers ON/OFF.# BASS BOOST keyUse to select the maximum adjustmentsetting for the low frequency range.About the STANDBY indicator This

16、 unit has a STANDBY indicator. When the STANDBY indicator is lit, the unit consumes a small amount of power to preserve the memory. This is calledSTANDBY mode. This mode also lets you turn the power ON using the remote control.Frequency display,Input display,Preset channel display,Surround mode disp

17、laySpeaker indicatorMUTE indicatorPRO LOGICindicatorDIGITAL indicatorS.DIRECT indicatorMONITOR indicatorDOWNMIX indicator$ MONITOR key% SOURCE DIRECT key INPUT MODE keyUse to switch between the digital andanalog inputs.& LISTEN MODE keyUse to select the listening mode.* SOUND keyUse to adjust the so

18、und quality and ambi-ence effects.( SETUP keyUse to select the surround sound settings.) MULTI CONTROL knobUsed to make a variety of settings. INPUT SELECTOR knobUse to select the input sources.For U.S.A.and CanadaVR-208(K) COVER-2P( 98.4.24 16:31 y W 6KRF-V7510D/V8010D/VR-208/2094CONTROLS8 FUNCTION

19、 SHIFT keyUse in combination with the numeric keysto execute alternate commands.9 Numeric keysProvide functions identical to those of theoriginal remote control supplied with thecomponent you are controlling.To access the functions printed above thekeys, press within 3 seconds of pressingthe FUNCTIO

20、N SHIFT key. Function avail-ability varies for each component.0 SHIFT keyUse in combination with the AUDIO andVIDEO keys to change the remote controlmode without changing the input selectoror in combination with the POWER key toturn on and off components programmedinto the remote control.! TV select

21、or keySets the remote control to operate a TV orcable box. This key does not change theinput selector on the receiver. AUDIO selector keySelects the audio inputs and sets the re-mote control to operate the respectiveKENWOOD audio component.If you connect audio components fromKENWOOD and other makers

22、 to the MD/TAPE or CD jacks, you can set the remotecontrol to operate these components byregistering the appropriate setup code atthe respective input.# GUIDE keyUse to activate the OSD menu functions ofregistered components.$ VOLUME keyUse to adjust the receiver volume.% MUTE keyUse to temporarily

23、mute the sound. SOUND keyUse to adjust the sound quality and ambi-ence effects.& LISTEN MODE keyUse to select the listening mode.* SETUP keyUse to select the surround sound settings.1 POWER keyUse to turn the receiver on and off.Use in combination with the input selector(AUDIO, VIDEO, or TV) keys an

24、d SHIFTkey to turn various components on and off.2 MACRO keyUse in combination with the AUDIO, VIDEO,or TV keys to execute a series of com-mands automatically (MACRO PLAY).3 VIDEO selector keySelects the video inputs and sets the re-mote control to operate the componentregistered at the respective i

25、nput.4 Multi control keysUse to operate the selected component.5 REC keyUse to operate the selected component.6 TUNING/SKIP keyUse during the setup procedure to specifyvarious settings. Use to operate the tuneror selected component.7 SUBWOOFER keyUse in combination with the VOLUME +/keys to adjust t

26、he volume of the subwoofer.There are some cases in which keys (orknobs) that have the same function onthe receiver and on the remote controlhave different names. In the instruc-tions of this manual, if the names ofcorresponding keys (or knobs) on thereceiver and remote control are differ-ent, the na

27、me of the remote control keyis indicated in parentheses.AUDIOSHIFTMACROTVVIDEOGUIDERECMUTEVOLUMETUNING/SKIPTHEMEFAVMENUFUNCTIONSHIFTSETUPINFOALT AUDTV/SAT/VIDREPEATRANDOM+100DISPLAYENT+10LISTENMODESOUNDSUBWOOFER23156489701237894560!#*&%$874?6BANDP. CALLP. CALLPOWERVR-208(K) COVER-2P( 98.4.24 16:31 y

28、 W 7KRF-V7510D/V8010D/VR-208/2095DISASSEMBLY FOR REPAIR1. Remove the 8 screws (1,2,3),remove the rear panel.2. Connect the GND of the rear paneland the chassis, the GND of themounting hardware and the chassiswith 2 alligators clip (4)12244433x2x2x3(VR-257)VR-208(K) COVER-2P( 98.4.24 16:32 y W 10KRF-

29、V7510D/V8010D/VR-208/2096BLOCK DIAGRAMIC22+470uF3300uFONLYfor 100W2200uF470uF3300uFONLYfor 100W4700uF3300uFfor 50W3300uF4700uFfor 50W+L/RLS/RSCDIRSWRSLSCRLLS, RSCSWBYPASS22+ADDALFEL, RL, R(X08)(X09)(X08)(X00)(X14)VR-209D3-6or20.0V/8IC12IC11IC11IC12IC10IC10(2/2)(2/2)(1/2)(1/2)(2/2)(1/2)T1D1-4CONVERTE

30、RDIRDA&ADTC9162AFUNITINPUT SEL.IC7(3/3)ED51IC51K322DOL.DIG,P.LEVEL)(SDATA, SBUSY)SYNCHROPROTECTION(DATA, CLK)E2ROM58TUNERPLLDT, PLLDO, PLLSD,STEREO, SLEVEL)RESET(SCK,SI,SO,IC)33(VIDEO A, VIDEO B,VMUTE)RELAY C, RELAY S)VIDEOE-VOL(VOL STB, VOL CLK,VOL DT)10dB ATTMUTE(TMUTE, PLLCE, PLLCLK,(STANDBY4RELA

31、Y(RELAY FA, RELAY FB,POWER RELAYu-COMCXP82532-141QAC-3LED78311GRIDSEGMENTKEYSCANKEY RETURNFLKEY MATRIXREMOCON INROTARY ENC628.3V/8SP. 5ch OUTPUTPRE OUTC, SL, SRchSWch2V/2.2K1V/2.2KK2K4K1IC3IC4Q16Q12Q11Q13Q10Q9Q8Q6Q5Q7Q4Q3IC9IC5IC19,20HPFIC13IC12IC16IC17(1/2)IC15(1/2)IC14(2/2)IC15(2/2)IC14IC2IC1Q2IC1

32、0-30V A.V.RIC2IC1D5D2D1S1SWITCHEDQ1K1(ONLY for J, E, T TYPE)VIDEO SELIC6(3/3)IC8IC11IC7(2/3)IC6(2/3)IC7(1/3)VIDEO IN/OUTIVP-P/75OUTIN200mV/2.2K200mV/47KAUDIOIC6IC22(2/2)IC22(1/2)IC23(1/2)IC23(2/2)IC21PHONO2.5mV/47KIC6(1/3)IC5IC3J1A1TC9164AFTC9163AFfor RELAY SWforONLY for 100WAMP (LOW TAP)for AMP (HI

33、 TAP)TUNER(AUDIO and VISUAL)for FILfor DSP, AD/DA, DIRfor u-COM (-30V)for E. VOLforfor E. VOL5VA.V.R-7V+7V+5V-15VA.V.RA.V.R+15Vu-COMforA.V.R+5VAC INSP-ASP-BREC OUTSWchCchSRchSLchSRchSLchRchLchCchRchH, P, LchH, P, RchLchRECOUTOUTRECPLAYMONITORVIDEO1VIDEO1VIDEO2VIDEO3VIDEO1TAPE1/MDTAPE2/MONIPLAY/MONIT

34、APE2/MDTAPE1PHONOCDVIDEO1VIDEO2VIDEO3DIGITALINVIDEO2OPTICALCOXIALVIDEO3-B LOWTAP+B LOWTAP-B HITAP+B HITAPMUTE10dB ATTorSTK407-290STK410-030orSTK411-230STK407-090BUFx0.5SWchRSchLSchCchRchx0.6ATTHPFHPFx0.5ATTDSPYSS248MIXx2BUFIC18SW LPFSW MIXx1x0.3x0.3x0.6x1x2x2x2LPFLPFLPFLPFATT OFFATT 1ATT 2CS4226NJM2

35、279MIC4TUNERPHONO EQLINE BUFLchTONE CONT.with6ch E. VOLM62446SPVR-208(K) COVER-2P( 98.4.24 16:32 y W 11KRF-V7510D/V8010D/VR-208/2097CIRCUIT DESCRIPTIONFL DISPLAY (X09) ED5111GRID17SEGMENTX8X3X3X4X3X3X2X2X2(X09) S517SERIALBUSYDATAVOLUMEENCODER(X09) S519MULTIENCODER(X09) S518SELECTORENCODER(X09)X4X1X3

36、X38.0MHzCERESETX3X1X3X2(M TYPE ONLY)AUDIO MUTETUNER MUTETUNER (X09) IC2(X09) IC1-10dB ATTSDSTEREOX111-MT-116GKLED(PEAK. LEVEL)(DOLBY DIGITAL)(STANDBY)(X09) IC6,7AUDIO SELECTOR(X08) IC4NJM2279M(X09) A501REMOCONVIDEO SELECTOR ICTC9163/9164CXP82832-141Q(X00) POWER Relay - (K1)SP. A RELAY - (K1)SP. B RE

37、LAY - (K2)SURR RELAY - (K3)CENTER RELAY - (K4)(X08) IC1DSP IC(X08) IC2DAC ICYSS248CS4226(CRYSTAL)(X09) IC5, 6FUNCTION SW(X09) IC9VOLUME IC(X09) IC52E2PROMM62446FPLC72131X24CO2(XICOR)TC9162/916412KR013KR114KR281KS0P.CH DOWNON/STANDBYSPEAKER A80KS1P.CH UPDIMMERSPEAKER B79KS2BANDLISTEN MODEBASS BOOST78

38、KS3AUTOSOUNDMONITOR77KS4MEMORYSETUPSOURCE DIRECT76KS5INPUT MODE75KS6DSW0DSW1DSW274KS7* No. of : u -COM Port NO.DSW3DSW (AC3)Key matrix1. Microprocessor CXP82832-141Q(X09 : IC51)1-1 Microprocessor periphery block diagramVR-208(K) COVER-2P( 98.4.24 16:32 y W 14Pin No.Pin NameI/ODescription1,2G10,11ODi

39、splay grids 10,113NoneIc test mode port.4,5NoneINo connect6AUDIOIAudio signal detection port. L=AUDIO.7VOL.ENC.AIVolume encoder A(clockwise) output.8REMOCONIRemote contol signal input.9VOL.ENC.BIVolume encoder B(counterclockwise) output.10,11NoneOIc test mode port.12-14KR0-2IKey return 0-2.15PROTECT

40、IProtection signal detection port. H=PROTECT.16S.DATAI/OSerial DATA signal.17S.BUSYI/OSerial BUSY signal.18E2.DTI/OE2 PROM data.19E2.CLKI/OE2 PROM clock.20SEL.ENC.AISelector encoder A(clockwise) input.21SEL.ENC.BISelector encoder B(counterclockwise) input.22MULTI.ENC.AIMulti encoder A(clockwise) inp

41、ut.23MULTI.ENC.BIMulti encoder B(counterclockwise) input.24SER.INISL16/XS8 selector. H=16bit.25AC3.SCKOYSS248 clock output.26AC3.SIIYSS248 data input.27AS3.SOOYSS248 data output.28VddAnalog power supply(+5V)29NoneINo connect30SEL.ST2OTC9162AF/63AF/64AF st2 output. H=latch.31AC3.CSOYSS248 CS output.3

42、2CODEC.CSOCS4226 CS output.33PLL.DOIPll ic do signal input port.34PLL.STITuner stereo signal detection port. L=STEREO.35PLL.SDITuner sd signal detection port. L=TUNED.36RCV.CEIReceiver chip enable signal port. L=ENABLE.37AvssAnalog GND.38RESETIMicroproessor reset signal.39,408MHzIMain clock generati

43、on(8MHz).41VssMicroprocessor GND.42NoneINo connect43TEXGND.44VddPower supply(+5V).45VfdpPower supply(-33V).46SEL.ST1OTC9162AF/63AF/64AF st1 output. H=latch.47PLL.DTOPll ic data signal output port.48PLL.CKOPll ic clock signal output port.49PLL.CEOPll ic ce signal output port.50T.TUNEOTuner mute contr

44、ol. L=mute on.51A.MUTEOOutput mute control. L=mute on.52SW.MUTEOSub woofer mute control. L=mute on.5310dB.ATTOVolume 10dB attenuation control. H=att. on.54VOL.DTOVolume ic (M62446SP) data control.55VOL.CKOVolume ic (M62447SP) clock control. H=active.56VOL.STOVolume ic (M62448SP) st control. H=active

45、.57VCR.MUTEOVideo ic (NJU2279D) cont2/4 mute control. L=mute on.58VCR.AOVideo ic (NJU2279D) cont1 mute control. H/L=static.59VCR.BBOVideo ic (NJU2279D) cont3 mute control. H/L=static.60FA.RLYOFront A speaker relay control. H=relay on.KRF-V7510D/V8010D/VR-208/2098CIRCUIT DESCRIPTION1-2 Pin descriptio

46、nVR-208(K) COVER-2P( 98.4.24 16:32 y W 15Pin No. Pin NameI/ODescriptions1VddPower supply(+5V)27TESTOTest port.8XIICrystal oscillation port.9XOOCrystal oscillation port.10VssGND11CPOOPLL output port.1218TESTITest port.19VINIPLL input port.20VrefIPLL input port.21VddPower supply(+5V)2229TESTITest port

47、.30VssGND31VddPower supply(+5V)3239OPORTORegister output ports.40VssGND41VddPower supply(+5V)4244TESTITest port.4547SDO20OPCM output port.48SDOBCKIBit clock for SD output ports.49SDOWCKIWord clock for SD output ports.50VssGND51VddPower supply(+5V)52AC3DATAOAC3 data detection port.53CRCOCRC error det

48、ection port.54MUTEOAutomatic mute detection port.55KARAOKEOAC3 karaoke data detection port.56SURENCOAC3 2/0 mode dolby surround encode input detection port.572/0MODEOAC3 2/0 mode input detection port.3.558,59TESTITest port.60VssGND61TESTITest port.62/ICIInitial clear port.6365TESTITest port.66/CSIMi

49、croprocessor interface chip selector input port.KRF-V7510D/V8010D/VR-208/2099CIRCUIT DESCRIPTIONPin No.Pin NameI/ODescription61FB.RLYOFront B speaker relay control. H=relay on.62C.RLYOCenter speaker relay control. H=relay on.63S.RLYORear speaker relay control. H=relay on.64POWER.RLYOPower relay cont

50、rol. H=relay on.65STANDBY.LEDOStandby led control.L=led on.66DOL.DIG.LEDODolby digital led control.L=led on.67P.LEVEL.LEDOPeak level led control.L=led on.68-70NoneONo connect71PACL_CTLONon oscillation of power pack ic at power off. L=stop oscillation.72AC3.ICOYSS248/CS4226 initial clear port.73EMPHA