Kenwood-X92_3770_00_001-md-sm 维修电路原理图.pdf

《Kenwood-X92_3770_00_001-md-sm 维修电路原理图.pdf》由会员分享，可在线阅读，更多相关《Kenwood-X92_3770_00_001-md-sm 维修电路原理图.pdf（29页珍藏版）》请在收音机爱好者资料库上搜索。

1、MD MECHANISM ASSYX92-3770-00,0-01X92-3780-00,0-01 2000-5 PRINTED IN JAPANB51-7623-00 (4) 3360SERVICE MANUALCCONTENTSBLOCK DIAGRAM. 2COMPONENT DESCRIPTION. 3MICROCOMPUTERS TERMINAL DESCRIPTION. 3ADJUSTMENT. 5MECHANISM OPERATION DESCRIPTION . 7PC BOARD .24EXPLODED VIEW . 26SCHEMATIC DIAGRAM.27PARTS LI

2、ST .29RadioFans.CN 收音机爱 好者资料库21245678931514IJABCDEF1112222325414219APCAPCREFEQADJ3TADJWBLADJFZCRFAUX1AUX2PEAKBOTTOMABCDFEVCSWDTSCLKXLATFOCONT109108103104101100107106SPFDSPRDFFDRFRDRTFDRTRDRSFDRSRDR111411961312MNT0MNT1MNT2MNT3XINTSQSYSENSSRDTSCLKSWDTXLATXRST363839145759582322FZCXINTSQSYSENSSRDTSCLKSW

3、DTXLATXRST283217272662643735613LDONSDMUTELIMIT SWP-ONAMUTEMSDAMSCLMSTOPMRSTTYPE 1TYPE 2151011121316472930MNT 4MNT 3MNT 2MNT 1MNT 04M/16MHOTESDAESCL20191716293023222625243233TRK+TRK-FCS+FCS-SLED+SLED-SPDL+SPDL-VCVREF0VCC2VCC1LOADEJECT10111213678928273145TFDRTRDRFFDRFRDRSFDRSRDRSPFDSPRDREG INREG OUTEN

4、REGLOADEJECT11108131219181417451202167A8VL-CHR-CHMRSTMSTOPMSCL (IIC BUS)MSDAAMUTEBU5VS5VS5VLOE-SWLOS-SWDET-SWLOADEJECT363029313435373338474648401028263217182027164241MORFRFOAUX 1FOCONTXSTBYADFG22.58MHz1181171161975421373747576708190777879809397969594828988113115910812268.38MHz4MUTE 1MUTE 212MUTE 336

5、CH1,2CH3CH43157SW+5VDAVDDAUDIO +BJITTERRECORD INVCTESEVCVCVCVCPDLDSTBYTO CH5 OPS+BSW+5VS5V+3.3VBU+5V65BU+5V1.2V rms1KHz 0dBSW+5VTO SERVO DRIVERBU+5VILCCLDONRF AMPRF AGC & EQRF AMPCXA2523ARBPFP-PPEAK &BOTTOMABCD AMPIV AMPIV AMPCVBAMPTEMPVICCONVERROR AMPFOCUSATAMPBPFTRACKINGERROR AMPSERIALPARALLELDECO

6、DERBALANCEE-FFILTERPLLDECODERACIRCEFMMEMORYRESISTANTSHOCKCONTROLLERDYNAMIC RAMATRACDECODERDIGITALFILTERCONVERTERD/APOST FILTERCONTROLMONITORANALOGMUXADIPDEMODULATORDECODERSPINDLESERVOGENERATORPWMAPCDSPSERVOCONVERTERA/DCLOCKGENERATORAUTOSEQUENCERI/FCPUPROCESSORSUBCODETC74HCT7007AFMECHA u-COMUPD78015F

7、YGCCH2DRIVERCH1DRIVERDRIVERCH4DRIVERCH3VREFDRIVERCH5NJM4565MDLPFSW+8VA3.3VREG.LIMIT SWLOE-SWLOS-SWDET-SWATRAC DECODERDET.REFLECTAPCC BD AFEJIDETECTORTRACKINGCOILFOCUSCOILMSLED MOTORSPINDLE MOTORMLOADING/EJECT MOTORMTHERMISTEREEPROMS-24C01B128 8BITSW+5VEFM/ACIRC DECODERSHOCK PROOF MEMORY CONTROLLERDI

8、GITAL SERVO PROCESSORDIGITAL SIGNAL PROCESSOR1M-WORD 4BIT DYNAMIC RAMDIGITAL FILTER. D/A CONVERTERCDX2659RFOCUS/TRACKING COIL DRIVERSPINDLE/SLED MOTOR DRIVERLA6552LOADING/EJECT MOTOR DRIVERIC1Q1IC4Q3IC2IC11IC9IC5IC8Q10IC12Q13Q7MOTOR ASSYKMS-242BOPTICAL PICKUP BLOCKMOTOR BLOCKX33 UNITX92-3770-00,0-01

9、/X92-3780-00,0-01BLOCK DIAGRAMRadioFans.CN 收音机爱 好者资料库MICROCOMPUTERS TERMINAL DESCRIPTION3X92-3770-00,0-01/X92-3780-00,0-01COMPONENT DESCRIPTIONIC1IC2IC4IC5IC8IC9IC11IC12Q1Q2Q3Q7Q10Q12Q13CXA2523ARCXD2659RLA6552NJM4565MDLP2982-3.3TC74HCT7007AF78015FYGC-R08S-24C01B2SA1362(Y)DTA114EUA2SC4116(Y)MCH61012S

10、A1576ADTC143EUA2SA1576ARF matrix amp.Digital signal processor5ch BTL driverLPF3.3V AVRCMOS bufferMD mechanism MI-COM.E2PROMAPCLD SWDisc reflection detection3.3V AVRA 8VSWP ON 5V SWRF amplifier (pit and groove switching, AGC, EQ), gain switching I-V amplifier.Amplification of the light intensity sign

11、al output, peak hold output, bottom hold output, FE output, TE output, SE output, ADIP binaryoutput, VREF output and APC PDEFM decording, EFM digital PLL, ACIRC decording, auto link pro-cessing, ADIP decording.Digital servos (focusing, tracking, sled, spindle CLV).ATRAC decording, 1bit D/A, analog p

12、ost-filtering, memory control.Drives actuators and motors, +3.3V REGULATORThird active filterD/A audio +BLevel shifting from 3.3V to 5.0VServo control, memory control, system control and interfacingServo coefficients and servo adjustment data backup memoryLaser power control.On at baseL while laser

13、is OFF.On when focusing point is passed during upward search.Servo +BAnalog 8V power supply.On at baseLRef. No. Component NameApplication/FunctionOperation/Condition/Compatibility MD PLAYER UNIT (X33-3040-00/0-01)12345678910111213141516171819202122232425H turns normal test mode ON.L: 200ms, H: 300ms

14、L: 2655R, 2652AR, H: 2655BR, 2654RH turns special test mode ON.H turns external input mode ON.75% or more remains at HIVR-TBAL auto align bus at HAGC auto align bus at HError count mode at H(When its in text mode)Reverse polarity at H.H turns 16M bit operation (fixed on RESET)L when innermost limit

15、is detected.During 2652AR : ON at H, during 2654R : ON at L Active : LLatch at falling edgeTest mode input 0Groove area jump time selection inputDestination selector 2Test mode input 3E2PROM external input test modeTest mode memory remainder outputOPENOPENNo auto align mode inputNo auto align mode i

16、nputC1 error count mode inputGNDInternal status input from DSP LSIDAC output polarity reversal inputDRAM size selection inputPickup innermost limit detectionOPENOPENOPENDe-emphasis output to external DACReset output to DSP LSI and servo driver ICLatch output to DSP LSIOPENPin No. Microprocessor : 78

17、015FYGC-R08 (X33 : IC11)DescriptionProcessing OperationIIIIIOOOIIIIIIIIOOOOOOOI/OTEST0JTIMETYPE2TEST3TESTEM REMNCNCVSSIVRTBAL PASSAGC PASSC1 COUNTNCSENSAUDIO INV4M/16MLIMSWNCNCNCDEEMXRSTXLATVSSNCPin Name4X92-3770-00,0-01/X92-3780-00,0-01MICROCOMPUTERS TERMINAL DESCRIPTIONPin No.DescriptionProcessing

18、 OperationI/OPin Name262728293031323334353637383940414243444546474849505152535455565758596061626364Active : LActive : LActive : H(I2C-BUS)(I2C-BUS)Active : LActive : LHfor interrupt request generationActive : LLfor interrupt status generationVth On : 3.87V, Vth Off : 3.74V, Vth Low : 0.43VJitter inp

19、ut during FBAL alignmentHwith AVREF reference voltageHfor manual adjustment modeL: 2655R, 2655BR, H: 2652AR, 2654R(I2C-BUS)(I2C-BUS)Audio mute outputUnit internal system power control outputLaser APC control outputE2PROM serial data lineE2PROM serial clock lineOPENSled driver mute outputOPENOPENRese

20、t input from system -COM.FZC interrupt request inputStandby control input from system -COM.Interrupt request from DSP LSISub-code Q sync or ADIP sync inputConnect crystal oscillator as main system clock.Connect crystal oscillator as main system clock.(not used : BU5V connection)Temperature detection

21、 inputAUX1 input durring 2654R mode/others not usedOPENOPENOPENOPENOPENAVREF terminal control outputConnected to AVCON terminalSerial data input from DSP LSISerial data output to DSP LSIShift clock output to DSP LSIManual adjustment mode inputDestination selector 1Serial data line with system -COM.O

22、PENSerial clock line with system -COM.OOOI/OI/OOOOOIIIIIIII/OOOOOOOIOOIII/OOI/OAMUTEP-ONLDONESDAESCLNCSDMUTENCNCMRSTFZCM-STOPXINTSQSYVDDX2X1ICXT2NCAVSSHOTAUX1/NCNCNCNCNCNCAVCONAVDDAVREFSRDTSWDTSCLKLADJ1TYPE1MSDANCMSCLADJUSTMENT5X92-3770-00,0-01/X92-3780-00,0-01Service Test Mode (Manual Adjustment Mo

23、de) of the MDS-2200The focusing bias (balance) adjustment of the MDS-2200 has been subjected to automatic adjustment at the factory and theobtained bias value has been written in the E2PROM, and the set performs adjustment by reading the E2PROM data.Consequently, after the pickup has been replaced i

24、n servicing, it is required to adjust the focusing bias again. This can be doneautomatically if the dedicated commander for the MDS-2200 and a jitter meter are available, but the set also incorporates aservice test mode (manual adjustment mode) for use in case these instruments are not available. Ad

25、justment procedure (Be sure to begin setup while the power of the set is off.)1. Pull up pin 60 (LADJ1 (check land 1) of lC11 in the X33-unit to BU5V (check land BU5).2. Lead wires from check land ARF and check land SAG (servo GND) in the X33-unit so that they an be monitored with anoscilloscope.3.

26、Turn the set on and perform the reset power-ON operation. The adjustment includes three modes ; the Iow-reflection pit and groove modes for recordable discs and the high-reflection pit mode for premastered discs.4. Load a disc to enter the adjustment mode.5. The low-reflection pit play mode starts w

27、hen TNo.1 is displayed.The time code display shows “50”.6. While monitoring ARF with an oscilloscope, vary the focusing bias using the Track UP and DOWN keys.7. The optimum values can be obtained by varying the bias in the UP and DOWN directions, locating the upper and lower valuesat which the ARF w

28、aveform is disturbed or the 3T waveform level drop, and calculating the center value of the two values.For example, when the value located in the UP direction is 58 and that located in the DOWN direction is 46, the optimum valueis their center value, i. e. 52.8. When the optimum value is obtained, s

29、et the focusing bias to that value and press the ManuaI UP or DOWN key to enter thevalue. (With normal sets, press and hold the Track UP or DOWN key.)9. After the low-reflection pit adjustment in step 8, the pickup automatically moves to the groove area.10. The groove play mode starts when TNo.2 is

30、displayed.11. Perform the same operations as steps 6, 7 and 8.12. The disc stops after the groove area adjustment .Eject the disc and complete adjustment. Since the low-reflection pits are present only in the TOC area, their total play time is about 40 seconds. When the pit area is over, the retry o

31、peration starts and the adjustment is invalid in this period.13. When the high-reflection play mode starts, perform operations in steps 5, 6, 7 and 8.14. The disc stops after the adjustment. Eject the disc and complete adjustment. The coarse adjustment of the EF balance is also performed during this

32、 test mode. However, it is an automatic adjustment and does not require external poeration.6X92-3770-00,0-01/X92-3780-00,0-01ADJUSTMENT Display in service test mode (Display on the set)Start of pit adjustment mode 01-_ : _ Pit adjustment enabled 01-_ : 50Pit adjustment in progress ( =Adjustment data

33、) 01-_ : Pit adjustment result entered (Start of groove adjustment mode) 02-_ : _ Groove adjustment enabled 02-_ : 50Groove adjustment in progress ( =Adjustment data) 02-_ : Groove adjustment result entered (Normal completion) 02-_ : _ Error display (=Error status)_ : _ = 03 : Error during low-refle

34、ction pit EF balance adjustment = 04 : Error during low-reflection pit focusing bias adjustment = 05 : Error during low-reflection pit data write in E2PROM = 19 : Error during groove EF balance adjustment = 20 : Error during groove focusing bias adjustment = 21 : Error during groove data write in E2

35、PROM = 35 : Error during high-reflection pit EF balance adjustment = 36 : Error during high-reflection pit focusing bias adjustment = 37 : Error during high-reflection pit data write in E2PROM Adjustment parametersAdjustment condition : Setting the LADJ 1 pin to Hi then reset-starting the set.Adjust

36、ment keys : Track UP/DOWN keys.Entry key : Pressing the Manual UP/DOWN key (or pressing and holding the adjustment key with some sets). Notes 1. Always be sure to enter the results obtained with each medium.If the medium is ejected without entering the results and the adjustments of another medium i

37、s started, the E2PROM data willbe destroyed.2. Varying the focusing bias value extremely in the UP or DOWN direction degrades the focusing performance.Although this degradation can usually be recovered by retrying, there is also a potential of error occurrence or keys becominginvalid.In such a case,

38、 restart adjustment by reset-starting the set. (This also applies to the case in which data has been entered using an extreme value.)3. Note on “E-99”“E-99” which usually indicates a mechanism error is also displayed when E2PROM data is destroyed.If a wire is attached or removed while the sets power

39、 is on (BU UP), the E2PROM data could be destroyed ; be sure to attachor remove wire while the power is on (BU UP).This also applies to the attaching and removal of the card cable (flexible cable) to or from the mechanism.(Unlike the MDS-1000, normal operation cannot be resumed by turning the T0 pin

40、 Hi.)4. Note on E2PROMThe E2PROM stores a variety of initial data for the MD DSP, and some of the initial data is rewritten at the time of adjustment.As a result, note that an error occurs if the E2PROM in use does not store the initial data.MECHANISM OPERATION DESCRIPTION7X92-3770-00,0-01/X92-3780-

41、00,0-018X92-3770-00,0-01/X92-3780-00,0-01MECHANISM OPERATION DESCRIPTION9X92-3770-00,0-01/X92-3780-00,0-01MECHANISM OPERATION DESCRIPTION10X92-3770-00,0-01/X92-3780-00,0-01MECHANISM OPERATION DESCRIPTION911X92-3770-00,0-01/X92-3780-00,0-01MECHANISM OPERATION DESCRIPTION12X92-3770-00,0-01/X92-3780-00

42、,0-01MECHANISM OPERATION DESCRIPTION13X92-3770-00,0-01/X92-3780-00,0-01MECHANISM OPERATION DESCRIPTION14X92-3770-00,0-01/X92-3780-00,0-01MECHANISM OPERATION DESCRIPTION1315X92-3770-00,0-01/X92-3780-00,0-01MECHANISM OPERATION DESCRIPTION16X92-3770-00,0-01/X92-3780-00,0-01MECHANISM OPERATION DESCRIPTI

43、ON17X92-3770-00,0-01/X92-3780-00,0-01MECHANISM OPERATION DESCRIPTION18X92-3770-00,0-01/X92-3780-00,0-01MECHANISM OPERATION DESCRIPTION19X92-3770-00,0-01/X92-3780-00,0-01MECHANISM OPERATION DESCRIPTION20812X92-3770-00,0-01/X92-3780-00,0-01MECHANISM OPERATION DESCRIPTION821(X92-3780-XX)X92-3770-00,0-0

44、1/X92-3780-00,0-01MECHANISM OPERATION DESCRIPTION22X92-3770-00,0-01/X92-3780-00,0-01MECHANISM OPERATION DESCRIPTION23X92-3770-00,0-01/X92-3780-00,0-01MECHANISM OPERATION DESCRIPTIONMDS-2200BCADE2435671S2S3CN1S4IC11IC9Q13IC12Q12Q10Q7S1X33-3040-XX (J74-0998-12)R57CP2R82R3C8R2R1C22R14R13CP1L1R79C69C41X

45、2R92C38C70C55R52C52R59R55C53CP4CP5CP3CP8CP9CP6CP7C72R44C74R87R86R81R93R94R85CP10L4R83R90R91R12C21R96R95R99R97C58C23C59C24TH1DET-SW1LIM-SWLOE-SWLOS-SW1M3TETP2L1TYPE14M/16MM4JTT3CM0T0M2M1L1C26DR58EBB EB E163348321764494587814201EB(X33-3040-00/0-01)Ref. No.AddressIC12CIC23BIC45EIC55BIC84BIC93BIC114BQ13

46、5BIC125BRef. No.AddressQ12DQ22DQ33CQ75DQ105BQ125B24PC BOARD (COMPONENT SIDE VIEW)Refer to the schematic diagram for the values of resistors and capacitors.R78C20C68X1C67C11C35R49C56C61R6C1C40C12C10C13C60R18R80R17C14R19R21C25C16R20R8R11R5R10R7C18C28C5C6R4C7C27C75R26R24R25L3C9R66R67R64R65R72R73L2C63C6

47、4C65R77C50C49R70R53R56C54C15R54C45R48C46R43C48R40R39R47C47R46R45C43C44C37R88R38R41R37R42R23C29R75R74R71R69R68R76C66C31R9R30R27R33C34R32R31C32R29R28C30C17R98R84C33VCCIOP1RMBVCJILCCVCSL+SL-S5VRed11SP+SP-EJVCESAGNDBlackRFLDGNDTE1F-F+LOSCLDETMRSTAMUTELODGNDEADFGLIMSEAUX21T0NCSGNDPEAKBOTMABCDEJECTAG3.3VL

48、OADBU5MSTSW+5VRedBlack1L1DAVEEDGNDAUX1FEARFSGNDLOECDRLCIOP2TRK+M0M1M3M2DATRK-EBFVRE BE B45830906112091603134512253624134837121181936A8IIC2CN2IC1D1IC4Q2IC5Q3Q1IC8GHFIJ2435671(X33-3040-00/0-01)Ref. No.AddressIC12HIC23IIC45GIC55IIC84IIC93IIC114IQ135IIC125IRef. No.AddressQ12GQ22GQ33HQ75GQ105IQ125IS3Q7S4

49、X33-3040-XX (J74-0998-12)S2S1IC12Q12Q13IC11CN1Q10IC9R3ELOE-SWR97C24C52C53R52R55R58R59C55R57R44BR95C21R96C23R14C22R13R12DET-SWR99C261764R86CP8TH1CP10LIM-SWLOS-SWL4CP9C72CP2R93R82R911E4R948C74R90B5C59BECP3R83ER81X2R85C70CP13233C384849TYPE1CP7R2C8R1L1R798L1141C6920M0BR87R924M/16MM4C58CP4TP2T3M2M116M3CP

50、5LCTED1JTT0CP6C411725PC BOARD (FOIL SIDE VIEW)Refer to the schematic diagram for the values of resistors and capacitors.C56R41R37R45R54C50R88R49SGNDC49181R5619R53R48C48C54C47R4636R40R43C46R42R98C25SL+TRK-F-F+TRK+SL-IOP2EBER6R5C9VCLOEEJECTLOADBlackSW+5VRedCDEBOTMABCDC14C44R71C66C61C65ADFGDETR47BU5LOS