Kenwood-KDCX-715-Service-Manual电路原理图.pdf

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1、CD RECEIVERKDC-X7152000-1 PRINTED IN JAPANB51-7569-00 (4) 1469SERVICE MANUALExtension cordCD mechanism(22P)Parts No.W05-0618-00THE MECHANISM OPERATION DESCRIPTION is the same as model KDC-S3007 and KDC-5050RG.Please refer to the service manual for model KDC-S3007(B51-7029-00) or KDC-5050RG(B51-7099-

2、00).KDC-X715DISPDC cord(E30-4779-05)Torsion coil spring(G01-2924-04)Bracket(J19-4875-04)(J19-4876-04)Remote controller assy(A70-0894-05)Escutcheon(B07-2183-02)Screw set(N99-1652-05)(N99-1683-05)Lever(D10-4301-14)(D10-4302-14)Stay(J54-0606-04)Escutcheon assy(B07-2146-03)Knob (VOL)(K25-1095-03)Knob (1

3、-3)(K25-1096-03)Knob (4-6)(K25-1097-03)Knob (CLK)(K25-1099-03) Front glass(B10-3110-01)Panel assy(A64-1870-02)CKDC-X715BLOCK DIAGRAMCOM+B FM+B AM+BE2PROMDIMMER 2WAYMUTEACC DET.SRMPHOTBU DET.SRM DRIVERA8VSERVODC/DCSW14VSW5VBU5VPCONANT-CONMUTE DRIVER4.5V PREMUTEEsPOWER ICIC4IC14u-comIC1CDCHIC10IC7-9IC

4、5IC2F/EMECHADET.E-VOLPREOUT SP-OUT DIMMER TEL-MUTE ACC ANT-CONTP-CON BACK UPDECORDERRDSIC11EX.AMPCONTROLAVRRESETICIC15ANT. INAMPIC12NOISEPREOUTOUTPUTVOLTAGECONTROLEX.AMPNAVI-MUTEPANEL5V4.5VPREIC3IC6ILLUM +BLCDLCD CONT. 1G/R SWKEY MATRIXLCD TYPELOCK SWPANELREMORESETSWPLLCLKCHMO SWSERVO+BLO/EJSTOPMUTE

5、DATASCLKSW2CSSQRDATAMSW3SW1A8V BU5VRSTREQ CCLKCH-CONDATAHREQ HCDAMFMMUTERESETSRM SW1SRM DETSRM SW2RDCKRDDAQUALSDASCLA8V+B -B+B -BPLLDATAPLLCES-METERSW5VSW5VDATACBACK UP750mV4500mVCHANGERAM4.5V PRE2250mVFM160mV1200mV1200mV213mV (E TYPE)400mV (K TYPE)RDS OUTFM+BNOISE4500mVCDK TYPEMODE4500mV 4500mV1069

6、mV1715mVE TYPE3600mV600mV1800mV 3600mVK TYPEE TYPE 3600mV1372mV855mV3600mV1.8V PRESRM SUB-SRM SUB+DRIVERMUTEBU5VPANEL5VDIMMER PWM CONTROLILLUM +B IS LCD ONLYRSTLDATALLCLKL CELDATASDIMMER2KDC-X715MICROCOMPUTERS DESCRIPTION3System m -com : UPD784217GC (X25-)Terminal descriptionNo. Pin name Function I/

7、O Description Processing Operation12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849P120/RTP0P121/RTP1P122/RTP2P123/RTP3P124/RTP4P125/RTP5P126/RTP6P127/RTP7VddX2X1VssXT2XT1RESETP00/INTP0P01/INTP1P02/INTP2/NMIP03/INTP3P04/INTP4P05/INTP5P06/INTP6AVddAVref0P10/ANI

8、0P11/ANI1P12/ANI2P13/ANI3P14/ANI4P15/ANI5P16/ANI6P17/ANI7AVssP130/ANO0P131/ANO1AVref1P70/RxD2/SI2P71/TxD2/SO2P72/ASCK2/SCK2P20/RxD1/SI1P21/TxD1/SO1P22/ASCK1/SCK1P23/PCLP24/BUZP25/SI0P26/SO0P27/SCK0P80/A0P81/A1CHCON1CH_MUTEREQHILL_ONNCCD_SW2CD_SW1NCVddX2X1VssXT2XT1RESETCH_RSTR_CLKREQCNCNCNCSC_REQAVdd

9、AVrefPHONESRM_SW1NOISESMETERIF_MODENCM_MUTE_RM_MUTE_LAVssEXT_AMPM_RSTDATACDATAHCH_CLKL_DATAL/SC_DATAL_DATAS/MC_DATAL_CLK/MC_CLKM_STOPBEEPPLL_CEPLL_DATAPLL_CLKCD_SW3LO/EJOIOOOIIO-IOIII/OI/OI/OI-IIIIIIII-OO-IOI/OII/OI/OOOOI/OOIOChanger 1 controlChanger muting inputHandshake request to changersIllumina

10、tion outputOpen12cm DISC detectionLoading detectionOpenPositive power supplyMain clock connectionMain clock connectionGNDSub clock connectionSub clock connectionReset inputChanger reset outputRDS clock inputHandshake request from changer-Handshake request from panel m-comA/D analog power supplyA/D r

11、eference voltage inputPHONE detection terminalSRM position detectionFM noise detectionFM signal meter detectionK2I IF selectorGNDMute request from mechanismMute request from mechanismA/D GNDEXT_AMP controlReset output to mechanismD/A reference voltage inputData line from changerData line to changerC

12、lock line from/to changerData line from LCD driverData line to LCD driverClock line to LCD driverStop request to mechanismBeep outputCE output to PLLData in/out with PLLClock output to PLLSwitch detection DOWNLoading/Eject controlActive : HiMUTE Requested : HiActive : LoActive : HiON : LoON : LoActi

13、ve : LoActive : LoActive : Lo1V or less : PHONE2.5V or more : NAVI MUTEOpen : HiAnalog inputAnalog inputWide : Hi/Narrow : LoMute requested : LoMute requested : LoReset : LoStop Requested : LoActive : HiON : HiLoading : Lo/Eject : HiKDC-X715MICROCOMPUTERS DESCRIPTIONNo. Pin name Function I/O Descrip

14、tion Processing Operation5051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100P82/A2P83/A3P84/A4P85/A5P86/A6P87/A7P40/AD0P41/AD1P42/AD2P43/AD3P44/AD4P45/AD5P46/AD6P47/AD7P50/A8P51/A9P52/A10P53/A11P54/A12P55/A13P56/A14P57/A15VssP60/A16P61/A17P62/A18P6

15、3/A19P64/RDP65/WRP66/WAITP67/ASTBVddP100/TI5/TO5P101/TI6/TO6P102/TI7/TO7P103/TI8/TO8P30/TO0P31/TO1P32/TO2P33/TI1P34/TI2P35/TI00P36/TI01P37TESTP90P91P92P93P94P95MOSWMECH_DETPAN 5VL_CE/P_RSTL_INH/MC_REQDIM_CONQUALR_DATASRM_SUB-SRM_SUB+SRM_DETSRM_SW2FM_SDNCAFC-WIDENARROWAM+BFM+BNCNCTYPE0TYPE1TYPE2ST_TY

16、PE0ST_TYPE1NCPRE MUTE RPRE MUTE LNCSVRNCP_MUTEANT_CONIC2_SCKDIMMERP_CONACC_DETREMOP_ONBU_DETIC2_SDAMUTESW5MS_CLMS_DA-OIOOOOIIOOIIIOOOOI/OOOOO-IIIIIOOO-OOOOOOIOIIOI-I/OOOOI/OOMotor outputMechanism detectionPanel detectionCE to LCD driver / Panel m-com resetReset to LCD driverDIM controlRDS receiving

17、conditionRDS data inputSRM sub motor outputSRM sub motor outputSRM mechanism detectionSRM eject detectionFM SD inputOpenNoise detection time constant switchingK2I Wide outputK2I Narrow outputAM power supplyFM power supplyOpenOpenGNDIC2 Var.3 destination type 0IC2 Var.3 destination type 1OpenAudio mu

18、te RAudio mute LPositive power supplyOpenPower IC resetOpenPower IC mutingAntenna controlIC2,IC5,E2PROM clock lineDimmer detectionPower controlACC detectionRemote control inputm -com peripheral power supplyMomentary power down detectionTestIC2,IC5,E2PROM data lineMuting output5V power supplyCD mecha

19、nism clock lineCD mechanism data lineNCLoading Hi/Eject : LoON : Hi/OFF : Lo OFF : HiGood : HiON : Lo/OFF : Hi: EjectStation detected : HiNot detected : LoDuring reception : HiDuring search : LoActive : HiActive : HiActive : HiActive : HiDestination type switchDestination type switchDestination type

20、 switchInitial value : LoInitial value : LoActive : LoActive : LoPower ON : LoActive : LoActive : HiActive : LoActive : HiACC OFF : HiActive : HiMomentary power down : HiGNDActive : HiActive : Lo4KDC-X715TEST MODE1. Entering the test modeReset the unit by pressing the FM key and the Preset 6key at t

21、he same time.When the test mode is entered, all indicators light up.2. Releasing the test modeReset the unit by pressing the preset 6 key.Note: The unit cannot be reset by simply turning ACC off,turning power off, or turning power off for a brief moment.3. Voltage adjustment on the FM S-meter(1) Ent

22、er the test mode.(2) While pressing the Preset 1 key, keep on pressing thePreset 6 key.(3) When the adjustment is made, “ADJ OK“ is displayed.When adjustment cannot be mede, “ADJ NG“ is dis-played.4. Writing SD voltage for the AM(1) Enter the test mode.(2) While pressing the Preset 1 key, keep on pr

23、essing thePreset 6 key, which results in writing SD.5. Forced switching of K2I Auto/ManualIn tuner-mode, keeping on pressing TI key, and the Autoand Manual modes can be switched. The initial conditionis in manual modes, which is indicated by flashing DUALdots.6. Forced narrow/wide switching of K2IIn

24、 tuner-mode,when Preset 6 is pressed, forced narrow/wide mode switching is made. The initial condition is inwide mode and the NEWS dot flashes.7. CD receiver test mode specificationBy pressing the track-up key, the unit jumps to the follow-ing tracks:No.9 No.15 No.10 No.11 No.12 No.13 No.14No.9 (Goe

25、s back to the first position.)When the track-down key is pressed, the unit jumps to theprevious track.8. MD test mode specificationAfter loading MD, the unit plays No.7. Then,the unit jumpsas follows each time it trackups.No.2 No.13 No.23 No.30 No.34 No.7(Goes back to the first position.)When the tr

26、ack-down key is pressed, the unit jumps to theprevious track.9. Tape test modeIn the initial step,the blank skip is turned off.10. Audio-related items The volume is -10dB (on display, it is 30). The loudness is off and CRSC is off regardlles of func-tions. Buss/treble and balance/fader are to be adj

27、usted by theup/down key to full-boost/fullcut and fullfront/fullrearrespectively.The high-pass filter is adjusted by the up-key to through-put/100Hz/200Hz and, by the down-key,to 200Hz/100Hz/ throughput. Other adjustments are the same sa before.11. Backup current measurementWhen reset in ACC-off con

28、dition (backup is on), the muteterminal goes off after 2 seconds instead of 15 seconds,when the ACC is turned off in the test mode. (In this case,the panel/CD/C/MD mechanisms are not activated.)12. Registering security code after changing E2PROMat the services (Only for type M. However, RDSmodels ar

29、e excluded.)(1) Put the unit into the test mode (Refer to 1. Above forhow to enter the test mode.)(2) Press SRC key to put the unit into the tuner mode.(3) Press Audio key for one second and put the unit intothe menu mode.(4) Press FM/AM key and then select “SECURITY.“(5) Press track up/down key for

30、 full 2 seconds.(6) Press Preset 1, Preset 2, Preset 3, and Preset 4 andthen input codes.Example: Inputting “3510.“ Press 1 key 4 times. Press 2 key 6 times. Press 3 key 2 times. Press 4 key once.(7) Press DISP key for 3 seconds and confirm that“APPRODVED“ is displayed.(8) Release the test mode. (Re

31、fer to “2. Releasing the testmode“ above.)5KDC-X715TEST MODE13. Simplified method for clearing the security code(Only for type K)(1) When code is requested, continue pressing VOL UPkey for three seconds while pressing the DISP key.( disappear.)(2) Input “KCAR,“ using the remote controller (the samea

32、s the 98 Model) Press Tenkey 5 twice and then press track-up key.(Inputting “K“) Press Tenkey 2 three times and then press track-upkey. (Inputting “C“) Press Tenkey 2 once and then press track-up key.(Inputting “A“) Press Tenkey 7 twice and then press track-up key.(Inputting “R“)(3) Then, the securi

33、ty is released and the unit goes intothe Tuner Mode.14. Writing MASK KEY on line (E2PROM in initial condi-tion)(1) While pressing the FM key and Preset 6 key, pressreset key to enter the test mode.(2) Press AUDIO key for full one second to put the unitinto the menu mode.(3) Select the “MASK KEY,“ us

34、ing the FM key or AM key.(4) Press on the track up/down key to display “TRANS-MIT 1.“(5) Point the MASK KEY to the light receptor and press itfor 0.5 second or longer.(6) When “TRANSMIT 2“ is displayed, press MASK KEYfor 0.5 second or longer. When this is conducted, thecounter codes for the first ti

35、me and the second timewill not be compared.(7) When “APPROVED“ is displayed, writing iscomplated. time the demonstration mode is set andthe test mode is released.Note: After an elapse of 30-minute period, duringwhich no code is written, an error is effectedand the device will power off.15. Releasing

36、 MASK KEY requests (When reset orbackup is off when MASK KEY is approved)(1) When power is turned on, “TRANSMIT 1“ is displayedand the unit goes into MASK KEY request mode.(2) Point the MASK KEY to the light receptor and press itfor more than 3 seconds (until the level display indi-cates full)(3) Wh

37、en “TRANSMIT 2“ is displayed, press the MASKKEY again for more than three seconds. At this point,when “TRANSMIT 1“ is displayed, repeat the processin (2) above for the second time.(4) When “APPROVED“ is displayed, MASK KEY isapproved and the unit turns power on.16. Initializing MASK KEY (returning t

38、o the default con-dition from MASK KEY approved state)(1) While pressing the FM key and Preset 6 key at thesame time, press RESET to enter the test mode.(2) “TRANSMIT 1“ is displayed and the unit goes intoMASK KEY request mode. The display at this pointwill be “*“ instead of “ “.(3) Use MASK KEY rel

39、ease remote controller for morethan three seconds.(4) When “TRANSMIT 2“ is displayed,press the MASKKEY for more than three seconds for the second time.(5) When “APPROVED“ is displayed, the MASK KEY isreleased and the demonstration mode is set. Then,the test mode is released, returning the unit into

40、de-fault condition.17. Clearing from the MASK KEY(1) While pressing FM key and Preset 6 key at the sametime,press RESET to enter the test mode.(2) Press the AUDIO key for full one second to put the unitinto the menu mode.(3) Select MASK KEY, using track up/down key.(4) Press on the FM key or AM key

41、for full two secondsand the unit will display “TRANSMIT 1.“(5) Point the MASK KEY release controller to the light re-ceptor and press it for 3 seconds or longer. (Until thelevel display indicates full.)(6) When “TRANSMIT 2“ is displayed, press MASK KEYfor 3 seconds or longer for the second time. If“

42、TRANSMIT 1“ is displayed, start again from (5)above.(7) When “APPROVED“ is displayed, E2PROM iscleared. The unit goes back to the condition describedin Line 14: Writing MASK KEY on line (E2PROM ininitial condition)18. Other Automatic panel closing does not occur in case aTAPE,CD, or MD is inserted.

43、Panel is opened/closed when ATT key is turned On/Off.(A remote controller is used when tuning ATT on.) The DNPP/SBF key of the remote controller (RC-510)is used for tuning the menu mode On/Off. The OPEN/CLOSE key of the remote controller (RC-510) is used for tuning the audio mode On/Off. The feed on

44、 the menu will be feeds only for necessaryfeatures. “CODE OFF“ and other displays will not be issued whenthe power is turned on. The dimmer of the FL model and contrast on the LCDmodel can be adjusted only for 0/5/10 by the UP/DOWN key.6B CA D E F G H I J2435671S2S3S4S5S6S7S8S9S10S11S12S13S21S15S16S

45、17S14S18S19S20RESETIC3D6D5S1D3D2D4X13-9720-10 (J74-0984-12)ED1431218918196465119120139EJECTSRCFMAMCLKAUDDISCAUTO653421ATTPC BOARD (COMPONENT SIDE VIEW)7Refer to the schematic diagram for the values of resistors and capacitors. 8ELECTRIC UNIT (X25-8470-13) SWITCH UNIT (X13-9720-10)IC6Q16Q15Q17IC1IC2I

46、C3Q35Q34Q36Q37Q31Q11IC8D51IC16D23D24IC7IC12IC11D31IC5Q29D22Q50Q48IC14Q28D6Q9Q8D27D48Q39Q40IC9Q53Q54D18D50X25-8470-13 (J74-1000-12)D8D20CN8D12Q23Q1Q4A1D2CN4CN3CN6J1D19D1IC4WH1CN7D5D3Q56Q7D4CN5Q13D7CN1CN2Q21D11CP7R76R115C20C22R28R29R27R242X2W28/C12R179R137C58C67L7CP2L6C164L4L9W10R124W11W9W8R26R220R218

47、C139R226R217R219R90C132R231R58R113R199R116R6R192C17R108C16R138R247CP5 CP4R129R127R128C69R15C70C71R211R212C72CP3R200R185C57R216R235R67R118X1R52R59R53R5R71R151L1R121R70R79R80CP6R99R110R191R190R196R66R20C165C19R101R120CP9R180R172R171R96C131R13R227C135R149R92R14R241R83R142R94R114R141W19/R95C51R152R32R19

48、R204R198R112VR1R233R159R160R201 R153R202R154R148R174R119R136R133R134R4R12R165R245R111L3C16312.0M4.332MFMSDIFMODESMTR32.768kNOISETESTRESETC52C53C43C46C42FRONTREAR(3PRE)(2P)N-F/REAR11111441111C14C91C18C6C92C1C10C95C27C29R54C21C24C130X3C3C119C117C8C100C102L8C161C111C113C112C60C45 C44C5C64C61C90C33C66C1

49、47C15C89C97C108PH1C107C49C48C96 C98C65C99C103C81C104C85C86C82C101BEEBBEBEEBBEEBBEBEEBEBEBEBEBEBEBEB BEBEIGO1998116458458548122524213433112322 1211428152314586118148525265051757610045813542241R1172221 12 121213218169854EBEBEBEBEBEBEBRef. No.Address 3D 2E 2E 2D 4C 4C 5E 4D 3E 3D 4C 3D 3D 3E 6E 3G 3F 3G 4G 3B 3B(X25-8470-13)Ref. No.AddressIC15DIC24FIC33BIC42FIC54EIC65BIC73CIC83CIC105DIC116FIC136FIC144DIC155CRef. No.AddressQ13AQ23BQ34CQ43AQ54CQ64CQ75FQ85BQ95BQ106BQ114CQ124CQ134BQ144BQ155BQ164BQ174BQ185BQ194BQ204BQ213C