JVC-RX6008VBK-avr-sm 维修电路原理图.pdf

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1、SERVICE MANUALAUDIO/VIDEO CONTROL RECEIVERNo.20807Jan. 2000COPYRIGHT 2000 VICTOR COMPANY OF JAPAN, LTD.Printed in Japan2000 01(V)VICTOR COMPANY OF JAPAN, LIMITEDAUDIO DIVISION,10-1,1Chome,Ohwatari-machi,maebashi-city,371-8543,JapanRX-6000VBKRX-6008VBKRX-6100VBK No.20807RX-6000VBKRX-6008VBKRX-6100VBK

2、RX-6000VBKRX-6008VBKRX-6100VBKThis service manual is made from 100% recycled paper.RX-6000VBK/RX-6008VBK/RX-6100VBKNo. 20807JU.S.A.Area SuffixRX-6000VBKRX-6008VBKCCanadaArea Suffix(RX-6100VBK)ContentsSafety precautions - 1-2Instructions - 1-312Disassembly method - 2-1Adjustment method - 2-7Descripti

3、on of major ICs - 2-8Block diagrams - 2-19Standard schematic diagrams - 2-21Printed circuit boards - 2-Parts list - 3-1RX-6000V AUDIO/VIDEO CONTROL RECEIVERSTANDBYPHONESSPEAKERS12ADJUSTSETTINGMEMORYDVDCDTV SOUND/DBSTAPE/MDVCRPHONOTHEATERLIVE CLUBDANCE CLUBHALLPAVILLIONDIGITAL AUTOONSOURCE NAMESOURCE

4、 NAMEONE TOUCH OPERATION/INPUT ATT.DSP. MODEMULTI CURSORANALOG/DIGITALSURROUNDFM/AMMASTER VOLUME-+ OFF_ ONPOWERD I G I T A L171RM-SRX6000J REMOTE CONTROLSURROUNDSURROUNDMODESOUNDTV/VIDEOCD-DISC3215 SUBWOOFER +TEST654EFFECT CENTER +598 REARL + VCR CH +5TVVCRAUDIOSLEEP+1010 REARR +MENUENTER5TAPE/MDPHO

5、NOFM/AMMUTINGCDTV SOUND/DBSVCRANALOG/DIGITALTV VOLTV CHDVDVCR CH+VOLUMEPOWER8+7/PD I G I T A LEach difference pointModelContentRX-6000VBKBase modelRX-6008VBKThe one that model name was changedfor THEATER IN THE BOX by the samespecification as RX-6000VBK.RX-6100VBKThe one that remote control waschang

6、ed to preset remote control bythe same specification as RX-6000VBK. This illustration is RX-6000VBKRadioFans.CN 收音机爱 好者资料库Safety Precautions1. This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes sh

7、ould be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only.2. Alterations of the design or circuitry of the product should not be made. Any

8、design alterations of the product should not be made. Any design alterations or additions will void the manufacturers warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom.3. Many electrical and mechanical parts in the products

9、 have special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety c

10、haracteristics are identified in the Parts List of Service Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety characteristics as the

11、 recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards.4. The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp e

12、dges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after re-assembling.5. Leakage currnet check (Electrical shock hazard testing)After re-assem

13、bling the product, always perform an isolation check on the exposed metal parts of the product (antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.Do not use a line isolation transfo

14、rmer during this check.Plug the AC line cord directly into the AC outlet. Using a Leakage Current Tester, measure the leakage current from each exposed metal parts of the cabinet , particularly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage curr

15、ent must not exceed 0.5mA AC (r.m.s.)Alternate check methodPlug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 ohms per volt or more sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a 0.15 F AC-type capacitor between an exposed metal pa

16、rt and a known good earth ground.Measure the AC voltage across the resistor with the AC voltmeter. Move the resistor connection to eachexposed metal part, particularly any exposed metal part having a return path to the chassis, and meausre the AC voltage across the resistor. Now, reverse the plug in

17、 the AC outlet and repeat each measurement. voltage measured Any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.). Warning1. This equipment has been designed and manufactured to meet international safety standards.2. It is the legal responsibility of the repairer to ensure

18、that these safety standards are maintained.3. Repairs must be made in accordance with the relevant safety standards.4. It is essential that safety critical components are replaced by approved parts.5. If mains voltage selector is provided, check setting for local voltage.Good earth groundPlace this

19、probe on each exposedmetal part.AC VOLTMETER(Having 1000 ohms/volts,or more sensitivity)1500 10W0.15 F AC TYPE!CAUTIONBurrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system.http:/getMANUAL.comR

20、adioFans.CN 收音机爱 好者资料库2-1RX-6000VBK/RX-6008VBK/RX-6100VBKRemove the four screws A attaching the top cover on both sides of the body.Remove the three screws B on the back of the body.Remove the top cover from behind in the direction of the arrow while pulling both sides outward.1.2.3.Disassembly meth

21、odRemoving the top cover (See Fig.1)Prior to performing the following procedure, remove the top cover.Disconnect the harness from connector CN314 on the volume control board and connector CN811 on the main board.Remove the three screws C attaching the front panel assembly.Remove the four screws D at

22、taching the front panel assembly on the bottom of the body.1.2.3.Removing the front panel assembly(See Fig.2 and 3)Top coverVolume control boardCN314Main boardFront panel assemblyA 2BCDFront panel assemblyBottom coverFig.1Fig.2Fig.3CN811A 2RX-6000VBK/RX-6008VBK/RX-6100VBK2-2Prior to performing the f

23、ollowing procedure, remove the top cover.Remove the power cord stopper while moving it in the direction of the arrow.Remove the twenty-two screws E attaching each board to the rear panel.Remove the three screws F attaching the rear panel on the back of the body.1.2.3.Removing the rear panel (See Fig

24、.4)Prior to performing the following procedure, remove the top cover.For the harness extending from the AV compulink & sub woofer board to the volume control board, disconnect it from connector CN617 on the volume control board and cut off the two tie bands. Disconnect the AV compulink & sub woofer

25、board from connector CN616 on the volume control board. Disconnect the relay board 1 from connector CN609 on the video terminal board and CN603 on the audio board.Disconnect the S-video board from connector CN618 on the volume control board.Disconnect the video terminal board from connector CN614 on

26、 the volume control board.Release joint a of the lower part of the DSP board and the bracket. Disconnect the DSP board from connector CN651 and CN657 on the volume control board.Disconnect the audio board from connector CN611 and CN612 on the volume control board.Disconnect the tuner board from conn

27、ector CN121 on the volume control board.1.2.3.4.5.6.7.Removing each board connected to the volume control board (See Fig.5 to 7)EPower cord stopperRear panelFVolume control boardCN617Tie bandsRelay board 1CN603CN609AV compulink & sub woofer boardAudio boardCN603Video terminal boardCN609S-video board

28、DSP boardCN614AV compulink & sub woofer boardTuner board Joint aEEEEEEEFFFig.4Fig.5Fig.6Fig.7Volume control boardCN616Tuner board Relay board 1Video terminal boardCN618CN616Volume control boardCN121CN611CN612Audio boardDSP boardAV compulink & sub woofer boardS-video boardCN651CN657EVideo terminal bo

29、ard2-3RX-6000VBK/RX-6008VBK/RX-6100VBKPrior to performing the following procedure, remove the top cover and the rear panel.Disconnect the card wire from connector CN314 on the volume control board.Cut off the three tie bands fixing the harness.Disconnect the harness from connector CN712 on the pream

30、plifier board.Disconnect the relay board from connector CN615 on the volume control board and CN851 on the main board.Remove the five screws G attaching the volume control board.1.2.3.4.5.Removing the volume control board(See Fig.8)Prior to performing the following procedure, remove the top cover.Di

31、sconnect the harness from connector CN712 on the preamplifier board and cut off the one tie band.Disconnect the preamplifier board from connector CN711 and CN713 on the main board.1.2.Removing the preamplifier board(See Fig.9)It is not necessary to remove the boards inserted to the back of the volum

32、e control board.ATTENTION: Preamplifier board CN712GFig.8Fig.9Tie bandCN615CN851Tie bandsGVolume control boardRelay boardPreamplifier boardCN712Main boardCN713Main boardCN711Tie bandCN314RX-6000VBK/RX-6008VBK/RX-6100VBK2-4Prior to performing the following procedure, remove the top cover.Disconnect t

33、he harness from connector CN831 on the main board.Remove the two screws H attaching the regulator board to the heat sink.Disconnect the harness from connector CN511 on the main board and CN512 on the volume control board.Cut off the three tie bands fixing the harnesses.Remove the two screws I attach

34、ing the rear-Rch amplifier board to the heat sink.1.2.3.4.Removing the regulator board / the rear-Rch amplifier board (See Fig.10 and 11)Prior to performing the following procedure, remove the top cover, the rear panel, the relay board and the preamplifier board.Disconnect the card wire from connect

35、or CN811 on the main board.Unsolder each harness connecting the power transformer and the main board.Unsolder the power cord on the main board.Remove the eight screws J attaching the main board to the heat sink.Remove the eight screws K attaching the main board.For the harness extending from the spe

36、aker switch board, unsolder FW902 on the main board.1.2.3.4.5.6.Removing the main board(See Fig.12 and 13)Tie bandTie bandMain boardCN831Tie bandMain boardCN511Rear-Rch amplifier boardVolume control board CN512Fig.10Fig.11Fig.12Fig.13Regulator boardRegulator boardRear-Rch amplifier boardHIKHeat sink

37、KKKMain boardCN811Power transformerFW902SolderedpartSpeaker switchboardMain boardSoldered partJJHeat sinkPower transformerMain boardCN8112-5RX-6000VBK/RX-6008VBK/RX-6100VBKPrior to performing the following procedures, remove the top cover.Unsolder each harness connected to the power transformer resp

38、ectively.Remove the four screws L attaching the power transformer.Removing the power transformer(See Fig.14)Prior to performing the following procedure, remove the top cover and the front panel.Remove the two screws M attaching the speaker switch board on the front side of the body.Remove the one nu

39、t attaching the headphone board on the front side of the body.Pull out the speaker switch board and the headphone board backward.Unsolder each soldered part.1.2.3.4.Removing the speaker switch board/ the headphone board (See Fig.15 and 16)1.2.Fig.14Fig.15Fig.16SolderedpartLLSoldered partHeadphone bo

40、ardNutMHeadphone boardSpeaker switchboardPower transformerSoldered partRX-6000VBK/RX-6008VBK/RX-6100VBK2-6Prior to performing the following procedure, remove the top cover and the front panel.Pull out the volume knob on the front side of the front panel and remove the nut attaching the volume board.

41、Remove the three screws N attaching the volume board on the back of the front panel and disconnect the harness from connector CN411 on the volume board.Remove the ten screws O attaching the system control board and disconnect the harness from connector CN402 on the system control board.Remove the si

42、x screws P attaching the operation switch board. Push each tab b of the four joints inward and detach the operation switch board to the front.Remove the screw Q attaching the operation switch board.1.2.3.4.5.Removing each board in the front panel assembly (See Fig.17 to 20)Fig.20Fig.19Fig.18Fig.17Sy

43、stem control boardQPPTab bTab bPOOOONNVolume boardCN402CN411System control boardVolume knobNutFront panel assembly2-7RX-6000VBK/RX-6008VBK/RX-6100VBKAdjustment methodIDLING CURRENT1.Set the volume control to minimum during this adjustment.2.Set the surround mode OFF.2.Turn VR741 and VR742 fully coun

44、terclockwise to warm up before adjustment. If the heat sink is already warm from previous use the correct adjustment can not be made.3.For L-ch,connect a DC voltmeter between TP001s pin1 and pin2 (Lch) And,connect it between pin3 and pin4(Rch).4.30 minutes later after power on, adjust VR741 for L-ch

45、, or VR742 for R-ch so that the DC voltmeter value has 1mV10mV.1.Tuner range FM 87.5MHz108.0MHz AM(MW) 530kHz1710kHzVR742TP001VR7414 3 2 1LchRchTP001Tuner sectionPower amplifier sectionRX-6000VBK/RX-6008VBK/RX-6100VBK2-8 1 2 3 4 5 6 7 8 910113332313029282726252423121314151617181920212244434241403938

46、37363534SDOSOCKSMISBCLKLRCKSDTI1SDTI2SDTI3SDTODAUXDFSVREFLRIN+RIN-LIN+LIN-ROUT1LOUT1ROUT2LOUT2ROUT3LOUT3DEM1DEM0MCKODVDDDVSSPDXTSICKS1ICKS0CAD1CAD0CDTOCDTICCLKCSPISXTOXTIAVSSAVDDVREFHVCOM1.Pin layoutLIN+LIN-RIN+RIN-LOUT1ROUT1LOUT2ROUT2LOUT3ROUT3LPFLPFLPFLPFLPFLPFDACDACDACDACDACDACDATTDATTDATTDATTDAT

47、TDATTADCADCHPFHPFAudio I/FMCLKBICKLRCKSDOUTSDIN1SDIN2SDIN3SDTOSDTI1SDTI2SDTI3SDOSDAUXFormatConverterBlock Diagram (DIR and AC-3) DSP are external parts)2.Block diagramAK4527 (IC601) : A/D,D/A ConverterDescription of major ICs2-9RX-6000VBK/RX-6008VBK/RX-6100VBKNo. 1 2 3 4 5 6 7 8 91011121314151617181

48、920212223242526272829303132Pin nameSDOSOCKSMISBICKLRCKSDTI1SDTI2SDTI3SDTODAUXDFSDEM1DEM0MCKODVDDDVSSPDXTSICKS1ICKS0CAD1CAD0LOUT3ROUT3LOUT2ROUT2LOUT1ROUT1LIN-LIN+RIN-RIN+SDTO Source select pin L : Internal ADC output, H : DAUX input ORed with serial control register if P/S=L.MCKO Clock frequency sele

49、ct pin L : MCLK, H : MCLK/2. ORed with serial control register if P/S= L.Connect to GNDAudio serial data clock pinInput/Output channel clock pinDAC1 Audio serial data input pinDAC2 Audio serial data input pinDAC3 Audio serial data input pinAudio serial data output pinAUX Audio serial data input pinD

50、ouble speed sampling mode pin L : Normal speed, H : Double speed, the ADC is powered down. ORed with serial control register if P/S=L.De-emphasis pin ORed with serial control register if P/S=LDe-emphasis Pin ORed with serial control register if P/S=LMaster clock output pinDigital power supply pinDig