Kenwood-CV750-int-sm 维修电路原理图.pdf

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1、STEREO INTEGRATED AMPLIFIER/TUNERC-V500/V550/V700/V750/V770SERVICE MANUAL 1997-7 /B51-5330-00 (K/K) 3676 ON/STANDBYPHONESINPUTTAPE 2(MONITOR)VOLUME CONTROLDOWNUPAV CONTROL CERTER KC-2CLOCKTIMERMODERDSPTYDISPLAYTIMERSETS.DIRECTON/OFFTA/NEWS/INFO.SETRTVOICEACTIVATESTEREODSPA.MEMOAUTOBANDTUNINGPTY SELE

2、CTMODEMULTI.CONTROLLEVELOPEN/CLOSEVOICEACTIVATED I G I T A LR D SANTENNAAMFM 75GNDCONNECT WITHPOWER AMPLIFIERSYSTEMCONTROLCDAUXTAPE 1/ MDININRECPLAYININ TAPE 2(MONITOR)AUDIOFRONTRECRECPLAYPLAY VOICEACTIVATEMONITOR OUTSURROUNDAUDIOVIDEOCENTERINPUTAC-3SUBWOOFERUNSWITCHEDLDVCRCABLE/ SAT.LRLDDVDDVD 6CH.

3、INPUTDIGITAL IN DIGITAL INIndicator(B12-0311-04)Front glass(B10-2350-04)Panel(A29-0861-01)Front glass(B10-2351-04)Lock terminal board(E70-0052-05)Metallic cabinet(A01-3432-01)Miniature phone jack *(E11-)Phono jack(E63-0162-05)x2Phono jack *(E63-)Power cord bushing(J42-0083-05)Rectangular receptacle(

4、E58-0018-05)Miniature phone jack(E11-0188-05)Phono jack(6P)x3 *(E63-)Phono jack(E63-1008-05)Phono jack *(E63-)AC power cord *(E30-)AC outlet *(E03-)Knob(K29-6665-02)Knob(K29-6665-02)Knob(K29-6666-02)Knob(K29-6664-02)Knob(K29-6665-02)Knob(K29-6660-04)Caution : No connection of ground line if disassem

5、ble the unit.Please connect the ground line on rear panel, PCBs, Chassis and some others.Phone jack(E11-0282-05)Illustration is C-V750.* Refer to parts list on page 40.C-V500700(k) COVER( 98.4.24 1:43 PM yW 2RadioFans.CN 收音机爱 好者资料库C-V500/V550/V700/V750/V7702CONTENTS / ACCESSORIESContentsCONTENTS / A

6、CCESSORIES .2DISASSEMBLY FOR REPAIR.3ADJUSTMENT.4PARTS DESCRIPTIONS .5PC BOARD .6SCHEMATIC DIAGRAM .13EXPLODED VIEW .39PARTS LIST.40SPECIFICATIONS .Back coverModel vs destinationMODELDESTUNERPREAMPCONTROLDISPLAYREMOTE CONTROLC-V500KX05-4680-10X08-2770-10X11-3720-10X14-4570-10PX05-4680-10X08-2770-10X

7、11-3720-10X14-4570-10YX05-4670-20X08-2772-91X11-3722-91X14-4570-10C-V550IX05-4670-21X08-2820-20X11-3780-20X14-4580-20MX05-4670-21X08-2820-20X11-3780-20X14-4580-20GRC-100(A70-1159-05)XX05-4670-72X08-2820-71X11-3780-71X14-4580-20C-V700IX05-4670-21X08-2820-21X11-3780-21X14-4600-20MX05-4670-21X08-2820-2

8、1X11-3780-21X14-4600-20XX05-4670-72X08-2820-72X11-3780-72X14-4600-20C-V750EX05-4682-71X08-2772-71X11-3722-71X14-4592-70GRC-150(A70-1137-05)TX05-4680-51X08-2770-51X11-3720-51X14-4592-70GRC-150(A70-1137-05)C-V770CX05-4670-21X08-2823-01X11-3783-01X14-4603-01GRC-100(A70-1159-05)AccessoriesFM indoor ante

9、nna(1)(T90-0810-05)Loop antenna stand (1)Cable tidy(2)(F07-1602-04)*AC plug adapter(1)(E03-0115-05)Microphone(1)(W01-0935-05)* Graphical Remote Control unit(1)GRC-100 (A70-1159-05)GRC-150 (A70-1137-05)Battery cover (A09-0379-08)Batteries(R03/AAA)(4)*Use to adapt the plug on the pow-er cord to the sh

10、ape of the walloutlet. (Accessory only for re-gions where use is necessary)How to reset the microcomputerThe microcomputer may malfunction (impossibility operation,erro-neous display,etc.)when the power cord is unplugged and pluggedin again while the unit is in ON mode with the Key pressed or dueto

11、other extern al causes.In this case,execute the procedure on theright to reset the microcomputer and return the unit to the normalconditionUnplug the power cord form the wall outlet.While pressing and holding the POWER or(ON/STANDBY)key,plug the AC cord into the wall out-let againResetting the micro

12、computer clears the memory you entered andreturns in to the initial condition when the unit left the factory.ON/STANDBYMUTEVOLUMEENTERSetupDVD/6ch InputSound SpeakerC DSat.Tape1CableResetVCR1VCR2L DT VConfirmSet UpReturnInputSourceMain MenuTapeATapeBTape1LDTunerCDVCR2VCR1TVSat.CableAM loop antenna(1

13、)(T90-0820-05)*Refer to parts list on page 40.C-V500700(k) COVER( 98.4.24 1:43 PM yW 3RadioFans.CN 收音机爱 好者资料库C-V500/V550/V700/V750/V7703DISASSEMBLY FOR REPAIR1. Remove the 1 screw (1), Then pull the slider (2) till last2. While raise the slider of left side, remove the slider fromthe bosses (3,4)134

14、444442x2x2C-V500700(k) COVER( 98.4.24 1:43 PM yW 6C-V500/V550/V700/V750/V7704ADJUSTMENTNo.ITEMINPUTSETTINGOUTPUTSELECTORTUNER/AMPSETTINGALIGNMENTPOINTSALIGN FORFIG.SELECTOR : FM1DISCRIMINATORL31L32(E, T only)(A)98.0MHz1kHz, 40kHz dev(E, T type)60dBu (ANT INPUT)Connect a DCvoltmeter betweenport of CN

15、2AUTO98.0MHzL31 (X05-)0V(a)(B)L32 (X05-)Minimumdistrotion2DISTORTION(STEREO)(C)98.0MHz1kHz, 40kHz devpilot: 6kHz dev60dBu (ANT INPUT)(B)AUTO(98.0MHz)IFT (W02-)Mininumdistrotion(a)ANTENNAAMFM 75GNDCONNECT WITHPOWER AMPLIFIERSYSTEMCONTROLCDAUXTAPE 1/ MDININRECPLAYININ TAPE 2(MONITOR)AUDIOINRECRECPLAYP

16、LAYMONITOROUTAUDIOVIDEOINPUTAC-3UNSWITCHEDLDVCRCABLE/ SAT.LRLDDVDDVDDIGITAL IN DIGITAL INOscilloscopeDistortion meterAC voltmeterDummy antenna(B)(A)(C)(D)AGAGFM SGMPXAGFM SGAM SG(a)ERROR MESSAGEDISPLAYDESCRIPTIONERR 1Main u-com sub clock no outputERR 2Main u-com sub clock frequency NGC-V500700(k) CO

17、VER( 98.4.24 1:44 PM yW 7C-V500/V550/V700/V750/V7705PARTS DESCRIPTIONSC-V500700(k) COVER( 98.4.24 1:44 PM yW 106ABDCE2135746Refer to the schematic diagram for the value of resistors and capacitors.PC BOARD(Component side view)C-V500700(k) COVER( 98.4.24 1:46 PM yW 11FHJLNGIKMO2135746Refer to the sch

18、ematic diagram for the value of resistors and capacitors.PC BOARD(Component side view)78c-v500(k) pcb 2p 98.4.24 1:18 PM y W 1PQSUWYRTVX2135746Refer to the schematic diagram for the value of resistors and capacitors.PC BOARD(Component side view)910c-v500(k) pcb 2p 98.4.24 1:20 PM y W 2ZABADAFAHAAACA

19、EAGAI2135746Refer to the schematic diagram for the value of resistors and capacitors.PC BOARD(Component side view)1112c-v500(k) pcb 2p 98.4.24 1:20 PM y W 3ABDFHJCEGI2135746()()18R27 10KPHASE DETECTORCHARGE PUMPDATA SHIFT REGISTER LATCH470PR21 1K3C2B I/FC377.2MHzX1C38C3627P22P3CE2NC1X IN5CL4DIR22 1K

20、R23 1KR20 1K6DO87BO154291011REFERENCEDIVIDER12bitSWALLOW COUNTERPROGRAMMABLE12DIVIDER1/16, 1/17 4bitC3147u10C320.0122X OUT20AOUT21VSS+R701KC2819AIN0.022C292.2u50C30100u16+5.6KR241uHL3330270 1/4WS-CURVEUNIVERSALCOUNTERDETECTORUNLOCKR321.2K12KR331/4W100PC33PD17VDD1516FM INC34AM IN1/4WL4+R261uH560R3013

21、14NC1000PC35121000PIF INR29R2810K1K1KR25100R31 10KR8 330R2100R443.3KR1CF1C2680C1330R40.01R510R30.01CF2C9 10u16C10 0.047+R47 15K21FMIFDETDETLEVELFM270 1WR4110u16+C250.1L23C20546REGFMIFAM/BUFFGNDDRIVETUNINGAMIFCOMPCF310.7MHz82707R17C51000P910AMFMAMDETFMSWAM/VCC8.2KC6322PC23 1u50+R193KR18+2.2u50C11 1u5

22、011C12+47KR4812PHASE DETFFVCODRIVEFFTRIGFFDETPILOT1000P22C27+1u50L1+C2647u16R42220R43R4510KR46100K0.01C8TUNER61004PC65247.5KR14R401KBUFFALCAMOSC2322PC151u50C14+C13AMRF.AMPAMMIX21AGC201910u16C16R13 47K+R7C1718MUTE17C194.7u251647K5600P1000PC18X2456kHzUNTIBIRDIESTEREODECODER1514SWSTEREO13C22C21VT VOLTA

23、GEAMFMBANDHFLFHFLFFREQ.5.2V1.4V7.6V1.6VVT0.0110.011C10-8PGND4320.1C9ANT11C210P0-100R2L3L427PC7C16C158PC132-6PR1018P680-2.2KR7100K-100R11C17100P678OSCIF-OUTVCCIFT3PC45C80.1VTR1100K180PC18L2GNDGNDR333KC3 0-8PC1933KR4180PL5C51000PR13680R5470K-1.2MC100.1C6 4PR12100680KC20L60-8PC12150P3.9KR668R14L1R910KC

24、1427P10KR8R73680R121KLF: LOWEST FREQUENCYHF: HIGHEST FREQUENCYC6433PXMABB.YC-V500C-V500C-V500COUNTRYDESTINATIONX05-4670-21UNIT No.YESYESAIX05-4670-20X05-4670-72NOAUSTRALIAAUSTRALIAC-V770MALAYSIAGENERAL MARKETDESTINATIONCOUNTRYX05-4670-72X05-4670-21XCIMNOYESUNIT No.ABB.A+15V+5V+11V+11V+11V+11V+11V+11

25、V+11V+11V+11V+5V+11V+11VGND LINESIGNAL LINE+B+BFM:6.6V10.5V1.8V9.5V1.0V11.0V (0V)0V0V1.0V5.1V11.0V2.2V1.0V0V(2.6V)2.6V(0V)2.6V4.3VST: 4.3VMONO: 0V0V(9.0V)5.1V2.2V0V0.5V3.1V(3.7V)ST: 0VMONO:4.8V3.9V(1.4V)5.1V0V(0.6V)4.0V(0V)3.7V5.1V2.3V(2.1V)2.3V(2.1V)2.0V(2.1V)0V(2.9V)2.6V(2.1V)2.1V2.4V(0.3V)1.4V1.4

26、V4.1V2.6VIC2(X05-4670-XX) : C-V500/V550/V700/V770 TYPEIC1A1 (W02-2582-05)AM ANTD1,2,8Q5,9,10Q1D3,4Q3,6IC2IC1: 2SC2714(R,O): 2SA1576A(R,S) or 2SA1586(Y,GR) orHSS104MTZJ5.1(B) or UZ-5.1BSB: 1SS133 or2SD1819A(Q,R): RD5.1ES(B2) or HZS5.1N(B2) or: 2SC4081(R,S) or 2SC4116(Y,GR) or2SB1218A(Q,R): LC72131: L

27、A1832J2D3PLLVT300GNDJ175D1D2FM+BQ3Q1D10D4AM IFTSYSTEMAM/FM/MPXD8OFF:AMON:FMQ5FM IFAMPIC4: NJM4565M: 2SD1757K or 2SD2114KQ7,8D12TR1TR2,3FET: 2SC2413: 2SC2714: 2SK302FETFM FRONT ENDTR2TR1D1D2TR3D3RF AMPOSCOSCBUFFERD1-3: HVU202 or1T362FMFMDISTORTION(ST)MIXD13D10: MA111D13C-V500C-V700: RD3.3ES(B2) or HZ

28、S3.3N(B2) orMTZJ3.3(B) or UZ-3.3BSB: RD2.7ES(B2) or HZS2.7N(B2) orMTZJ2.7(B) or UZ-2.7BSB+B LINE-B LINEXMODECARRIERMODULATIONANT INPUTFREQUENCYDEVIATIONFM98MHz1kHzSTEREO 67.5kHz 7.5kHz(Pilot)60dBAM1000(999)kHz400HzMONO 30% MOD60dBThe DC voltage is an actual reading measured with a highimpedance type

29、 voltmeter as the AM/FM signal generator isspecified to the conditions as shown in the list below. Themeasurement value may vary depending on the measuringinstruments used or on the product. The value shown in () isactual reading measured in the AM made.c-v500(k) pcb 2p 98.4.24 1:21 PM y W 4KMOLNY05

30、-3380-10C-V500/V550/V700/V750/V770()XR1539KR1639KR49R5047047KC57R571u501u50C62C584700P+C61+4700P47KCH.SPACE1GND10234564235T.MUTEPLLCEPLLDOPLLCLKPLLDATA987Lch+15V-15V1513141112SDDETS-LEVELRchSTEREO3/5-E4X11-A/5R55150K10u16+C593.3KR59R5347KR5147K3218+-R5247KR58C6010u1647KR56150K47KR5465-+74+R603.3KW11

31、5R6110KR6256KR638201KR65R641KC671000P+15V-15V-15V+15V+15V+15V+15V+15V+15V+15V0V0V0V-14.9V0V0V0VMUTE ON: 0.3VMUTE OFF:4.9VON: 0.7VOFF: -2.3V75us: 0.6v50us:0v14.5VC-V500/V550/V700/V750/V770 (1/6)AQ10Q9CN1IC4(1/2)IC4(2/2)S1CH SPACEDE-EMPHASISFM:50kHz50uSAM:9kHz75uSAM:10kHzFM:100kHzQ7Q8Q6D12MUTEMUTEDRIV

32、EDE-EMPHASISACAUTION: For continued safety, replacesafety critical components only with manu-facturers recommended parts (refer toparts list). indicates safety critical com-ponents. For continued protection againstrisk of fire, replace only with same typeand rating fuse(s). To reduce the risk ofelec

33、tric shock, leakage-current or resis-tance measurements shall be carried out(exposed parts are acceptably insulatedfrom the supply circuit) before the appli-ance is returned to the customer.The DC voltage is an actual reading mea-sured with a high impedance type volt-meter with no signal input. The

34、measure-ment value may vary depending on themeasuring instruments used or on theproduct.C-V500700(k) COVER( 98.4.24 1:46 PM yW 14PQSRT2135746XXXXXXXXX+B LINE-B LINE27PC82L61 1uHC21u50+BAND FREQ.VTFMLFHF1.6V7.8VAM1.3VLFHF5.0VVT VOLTAGEL62W52W54W51C10-8PGND4320.1C9ANT11C210P0-100R2L3L427PC7C16C158PC13

35、2-6PR1018P680-2.2KR7100K-100R11C17100P678OSCIF-OUTVCCIFT3PC45C80.1VTR1100K180PC18L2GNDGNDR333KC3 0-8PC1933KR4180PL5C51000PR13680R5470K-1.2MC100.1C6 4PR12100680KC20L60-8PC12150P3.9KR668R14150K-GND4GND3GND21ANT1220R16L7C172-6P47PC163.9KR121-3PC22470-R1710PC218PC19560KR180-10033KR3100K10PC6C7 5-10P0.1C

36、14L3L4R2R45P1000PC10680K-1.5MR5100R8L6680R9C1527PC12 2PC11C9100R19OSCC23100P8VCCIF-OUT0.16IFT0.1C137VT5R1100K3-7PC527PC3L20-5PC415PC2L127PC1R6 33KR7 33KC8 0-6PL51.5KC2027P10KR15R1410K0-100R11DESTINATIONCOUNTRY ABB.KPCANADAU.S.A.UNIT No.0-12A - CNOR3560R16,1520C53,540.03363C62,NOC73YESCF1,2L72-0536L6

37、2L39-1351W11NOW51,52,54,55YES10KR910KR8C1427PL1LF: LOWEST FREQUENCYHF: HIGHEST FREQUENCYW76R6122K1MR70R61-66,NO68,70(MS3)53,76NOW6,13,0.027C53,2-71UNIT No.COUNTRYDESTINATIONABB.1.8KR3A - CYESR61-66,2010R16,68,70NOL39-1351L72-0596C62,6354NOC73CF1,2(MS2)L62W51,52,54,55YESNO53,76W6,13,W11YESEUROPEEU.K.

38、T0-51YESNOYESNOQ61-65Q61-NO65YESL39-1352YESNO+7VGND LINESIGNAL LINE+B+B3.6VMW: 0VLM: 0.7V(X05-468X-XX) C-V500/V750 (K,P,T,E) TYPE(K,P) TYPEA1 (W02-2582-05)A1 (W02-2584-05): (T,E) TYPE(T,E) TYPEJ2IC1: LA1836IC2: LC72131D1,2,32,61,62: 1SS133 orD31: RD8.2ES(B2) orD62D61HSS104HZS8.2N(B2)AM ANTGNDJ175TR1

39、TR2,3FET: 2SC2413: 2SC2714: 2SK302FETFM FRONT ENDTR2TR1D1D2TR3D3RF AMPOSCOSCBUFFERD1-3: HVU202 or1T362FMTR3: 2SC2413KV1440: SVC220 or: 2SK302: 2SC2714J2FET1TR2,3TR1D1-4GNDAM ANTFM75J1OSCD4TR2D2FET1RF AMPFM FRONT ENDTR1BUFFEROSCD1D3: 2SC4081(R,S) or2SC4116(Y,GR)Q1,2,4,31-34,61,622SA1586(Y,GR): 2SA157

40、6A(R,S) orQ3,64,81,103: 2SD1757KQ101,102D81: RD5.1ES(B2) orHZS5.1N(B2)D101: RD3.3ES(B2) orHZS3.3N(B2)D102: RD2.7ES(B2) orHZS2.7N(B2)C-V500 (X05-4680-10)MIXDISTORTION(ST)DISTORTION(ST)MIXQ61Q65Q65: 2SK302(Y,GR)Q63: 2SC2878(B)C-V750 (X05-468X-XX)C-V500700(k) COVER( 98.4.24 1:46 PM yW 15UWYAAACVXZABAD(

41、)()()(XXXX()XXXXXXXXXXXXXXXXXXXXR80 1KR81 1KR83 1KR82 1K2453470PR84 10K22PC81+10u16C870.01C937.2MHzX81560R941/4WCOUNTERUNIVERSALX OUTDOCLCEX INDIBO1CHARGE PUMPPHASE DETECTORPROGRAMMABLE1/16, 1/17 4bitSWALLOW COUNTER12bitDIVIDERDATA SHIFT REGISTER LATCHDIVIDERREFERENCE21VSSPDAINVDDNCAM INFM INIF INNC

42、UNLOCKDETECTORAOUT22212019181716151413121234568710911456kHz7BUFF321FMIFFMDET4L3356REGGNDFMDRIVETUNINGAMBUFFLEVELDETS-CURVE30OSCAMALC2928AM/IFFMS METERDETIFCOMPAMAGCAMRF.AGCMIXAMAM272526DET12PHASE DET891011SWAM/FMVCC131415DECODERUNTIBIRDIEVCOFFSTEREODRIVE24232221MUTEPILOTFFFFTRIGSWSTEREO1820191716X31

43、C36 0.04710u16C35+10u16C33C34 0.01C32+C3147u160.01C3733KR592.7KR32 5.6K10u10C38+C30 0.047R331u50C40+0.47u50C41+3KC422.2u35+47KR49R348.2K22PC45R37C440.047+0.47u50C43100u10C46+R38 33K100PC70C471u50C49+R4410u10C52R4310u10R362110uHL632PC68L34R412.2K2KR40R42 2K1500PC50C92R851KC841000PR861KR88 1K1KC861000

44、PC85100PC8947u16+1KR87R91C902.2u50+C910.0221001/4WR931.2K12KR92C96+47u16C1R12201/4WR210KR69220R89R905.6K150 1WR31C48L31L320.01C2B I/F100PR39 82K4700PR3539K2.4K2.2KL811uHR67100K+C512.2u50+2.2u50C578200PR47L35R45R46C588200PR48L361K1K3.9K3.9KW550.01C61820PC73W11C55C562.2KC53C54MONO1GND10234564235T.MUTE

45、PLL-CEPLL-DOPLL-CLKPLL-DATA987Lch+15V-15V1513141112SDDET-OUTS-LEVELRchSTEREO3/5-E4X11-A/5100KR520.1C601KR5310KR501003.9KR51R57100C59100PR56R555.6K8.2KR103R105R1018201K1KR1021000P22PC672.2KW85R15R3C30.01CF1R447R90.01C6R102.2K100R510KR11330C70.01680R13100R123.3KR14C83300.01R16100330R17R21CF2C50.01R868

46、0R2210R18390680R19R20C90.010.01C10R7220W27C640.03347KR104W13W562.2KR68W6C639P0.033C621MR62R6447KR6315KR651.5KR6610KW24+11V+11V+11V+11V+11V+11V+11V+8V+11V+8V+15V+15V-15V+15V+15V+15V+8V+15V+15V+11V+11V+11V+11V6PC66+5V11.0V8.1VST: 7.2VMONO: 0V8.1VDT 0VST: 0VMONO: 4.8V3.7V8.1V3.7V3.7V2.7V(4.0V)3.7V3.7V1

47、.9V(1.5V)3.7V0V(1.3V)11.0V9.4V9.1V8.7V8.7V0.8V1.8V1.2V1.3V1.9V9.3V5.1V98MHz:3.8V(0V)11.0V2.5V1.0V5.0V1.0V0.2V0V11.0V0V(2.5V)2.5V(0V)2.5V4.6V12.2V0V(9.1V)7.1V(0V)8.1V8.3V14.5V7.7V3.8V3.3V8.3V2.3V2.9V(3.1V)2.9V3.7V3.7V3.7V3.7V3.8V2.9V(3.9V)4.7V(1.7V)MUTEON: 0.7VOFF: -2.2V-14.9V7.1V1.7V0.2V8.1V3.8V(2.4

48、V)6.7V(0V)0V(0.6V)14.5VIC2IC1C-V500/V550/V700/V750/V770 (K) (2/6)BD81PLLD31Q32D32CN2DISCRIQ31Q81FM +BVTAM/FMSYSTEM/MPXDISCRION:FMOFF:AMRchBCN1Q34Q33Q102Q101Q103D101LchD102MUTEMUTEDRIVES METER BUFFERBUFFERDET-OUTDET OUT:AMPDETECTOR:BUFFERIFAMPQ1D1Q2D2Q3Q4Q62Q63Q64XAXCXY05-3380-10C-V500/V550/V700/V750

49、/V770CAUTION: For continued safety,replace safety criticalcomponents only withmanufacturers recommendedparts (refer to parts list).indicates safety criticalcomponents. For continuedprotection against risk of fire,replace only with same type andrating fuse(s). To reduce the riskof electric shock, lea

50、kage-current or resistancemeasurements shall be carriedout (exposed parts areacceptably insulated from thesupply circuit) before theappliance is returned to thecustomer.The DC voltage is an actualreading measured with a highimpedance type voltmeter withno signal input. Themeasurement value may varyd