Kenwood-X-92-4750-0x-Service-Manual电路原理图.pdf

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1、 2003-6 PRINTED IN JAPANB53-0052-00 (N)3365DVD MECHANISM ASSYSERVICE MANUALX92-4400-0x/4730-0xX92-4740-0x/4750-0xDVD UNITROLLER LEVER ASSYDISC GUIDE ASSYMAIN CHASSIS ASSYCLAMP CHASSIS ASSYOUTER CHASSIS ASSYFRONT CHASSIS ASSYDAMPER x 4FLOATING SPRING x 4CONSTRUCTION OF MAJOR PARTSDESCRIPTION MECHANIS

2、MX92-4400-00 (DVS-3000) :X92-4400-01 (DVS-3001) :X92-4730-00 (DVS-3010) :X92-4730-01 (DVS-3011) :X92-4740-00 (DVS-3020) :X92-4740-01 (DVS-3021) :X92-4740-02 (DVS-3022) :X92-4740-03 (DVS-3023) :X92-4750-00 (DVS-3030)X92-4750-01 (DVS-3031)X92-4750-02 (DVS-3032)X92-4750-03 (DVS-3033)2X92-4400-0x/4730-0

3、xX92-4740-0x/4750-0xMODEL NAME X92-4400-00 X92-4400-01 X92-4740-00 X92-4740-01 X92-4740-02 X92-4740-03MECHANISM NAME DVS-3000 DVS-3001 DVS-3020 DVS-3021 DVS-3022 DVS-3023X37 X37-1020-00 X37-1020-00 X37-1020-00 X37-1020-00 X37-1020-00 X37-1020-00PICKUP T25-0222-05 T25-0222-05 T25-0222-05 T25-0222-05

4、T25-0222-05 T25-0222-05DVD CD DISC PROTECTION MECHANISM EXPORT PACKING SPECIFICATION DESTINATION A0 A1 A2 A3 A4 A5MODEL NAME X92-4730-00 X92-4730-01 X92-4750-00 X92-4750-01 X92-4750-02 X92-4750-03MECHANISM NAME DVS-3010 DVS-3011 DVS-3030 DVS-3031 DVS-3032 DVS-3033X37 X37-1020-01 X37-1020-01 X37-1020

5、-01 X37-1020-01 X37-1020-01 X37-1020-01PICKUP T25-0299-05 T25-0299-05 T25-0299-05 T25-0299-05 T25-0299-05 T25-0299-05DVD CD DISC PROTECTION MECHANISM EXPORT PACKING SPECIFICATION DESTINATION B0 B1 B2 B3 B4 B5DVD MECHANISM TABLEGrease Name Ref. No. Description Application position1 CHASSIS MOLD GEAR

6、CONTACT POINT2 CHASSIS PICKUP CONTACT POINT15 SLIDER GEAR CONTACT POINT30 CAM ARM ASSY (21) CONTACT POINTCFD-703ZA (BLUE) 33 GEAR GEAR WHOLE34 GEAR GEAR WHOLE35 GEAR GEAR WHOLE36 GEAR GEAR WHOLE37 GEAR GEAR WHOLE38 GEAR GEAR WHOLEPFD-602Z 1 CHASSIS SLIDER (17, 18) & LOCK ARM (25, 26) CONTACT POINTKW

7、-223 VM3 SLED MOTOR GEAR WHOLEHF-30 44 SHAFT SHAFT WHOLEUSE GREASE TABLE3X92-4400-0x/4730-0xX92-4740-0x/4750-0xBLOCK DIAGRAMDVD MECHANISM ASSY( X92-4400-0x : DVS-300x / X92-4740-0x : DVS-302x )UNITLOADING SWDVD UNIT (X37-1020-00)VM1SPINDLEMOTORDISCOPTICAL LASERPICKUPLD(650nm,780nm)VPU1STEPPING MOTOR

8、2 PHASECN1 :30PINCN3 :11PIN 4PINCN2 :MOTOR &DRIVERACTUATORIC6FEEDVM2MOTORLA65055V AVR.Q6MMOTORLOADINGVM3IC7PROCESSORFRONT ENDAN8703FHIC1IC2IOPDETMICROPROCESSORDF2328VTE25Q5TH1THERMISTEREEPROMIC11S-24C04BMFNQ1,2,4,5HD74LV2G66AANALOG SWIC4OPTICAL DISCCONTROLLERMN103S26ES-80829CLBBIC5RESET ICCN4 :50PIN

9、4PINCN4 :4PIN S4 : DOWN SWS5 : SLT3.3V REGNJM2880U33IC10D3.3VA3.3VD5VA5V1.8V REGUPC2918TIC91.8VVOLTAGE DETS-80815CLBBIC8toMAINUNITTrAPCU.V.W COILHALL BIASHALL SENSORDVD LD/CD LDVC(2.2V)MD(DVVD/CD)I/V OUT(DVD/CD)FO+/-,TR+/-HFM VCCA5VPD VCCPWMx27VBTLx283PWMSOFT-SW7VVHALF(1.65V)FGD/ASLEDMUTELO/EJECTDRV

10、1.65 A/D(DVD ONLY)2A5Vto A/D5VA3.3VA/DA/DA/DIOP DETVHALF(1.65V)SDASCK EEPONWPD3.3V4SENSTBY STDIOSCK74BALANCE TRANSFERHFM ONVHALF(1.65V)NARFTSTSGVHALF(1.65V)TRCRSTETRDRVARFJLINEFBALTMBALFEOFTRRFENVASBDOVREF2FODRVSPDRVFGCLKOUTNRESET A0-A17 D0-D7 XWR XINT0 CPU IREQXCS XRD XINT1 XWAIT ODCMON(TZC,OFTR,DR

11、DT)18 8 3 416.897849MHzRESETDATA BUSADDRESS BUSMONITORD3.3VD5V A3.3V 1.8VD3.3V16.897849MHzX1NRSTD3.3VS/P DIFAUDIO OUTATAPI IF5V7VDISC DETABCD4SW SWON/OFFA5V4X92-4400-0x/4730-0xX92-4740-0x/4750-0xBLOCK DIAGRAMDVD MECHANISM ASSY( X92-4730-0x : DVS-301x / X92-4750-0x : DVS-303x )UNITLOADING SWDVD UNIT

12、(X37-1020-01)VM1SPINDLEMOTORDISCOPTICAL LASERPICKUPLD(650nm)VPU1STEPPING MOTOR2 PHASECN1 :30PINCN3 :11PIN 4PINCN2 :MOTOR &DRIVERACTUATORIC6FEEDVM2MOTORLA65055V AVR.Q6MMOTORLOADINGVM3IC7PROCESSORFRONT ENDAN8703FHIC1IC2IOPDETMICROPROCESSORDF2328VTE25Q5TH1THERMISTEREEPROMIC11S-24C04BMFNQ2,4,5HD74LV2G66

13、AANALOG SWIC4OPTICAL DISCCONTROLLERMN103S26ES-80829CLBBIC5RESET ICCN4 :50PIN4PINCN4 :4PIN S4 : DOWN SWS5 : SLT3.3V REGNJM2880U33IC10D3.3VA3.3VD5VA5V1.8V REGUPC2918TIC91.8VVOLTAGE DETS-80815CLBBIC8toMAINUNITTrAPCU.V.WCOILHALL BIASHALL SENSORDVD LD/CD LDVC(2.2V)MD(DVVD/CD)I/V OUT(DVD/CD)FO+/-,TR+/-HFM

14、 VCCA5VPD VCCPWMx27VBTLx283PWMSOFT-SW7VVHALF(1.65V)FGD/ASLEDMUTELO/EJECTDRV1.65 A/D(DVD ONLY)2A5Vto A/D5VA3.3VA/DA/DA/DIOP DETVHALF(1.65V)SDASCK EEPONWPD3.3V4SENSTBY STDIOSCK74BALANCE TRANSFERHFM ONVHALF(1.65V)NARFTSTSGVHALF(1.65V)TRCRSTETRDRVARFJLINEFBALTMBALFEOFTRRFENVASBDOVREF2FODRVSPDRVFGCLKOUTN

15、RESET A0-A17 D0-D7 XWR XINT0 CPU IREQXCS XRD XINT1 XWAIT ODCMON(TZC,OFTR,DRDT)18 8 3 416.897849MHzRESETDATA BUSADDRESS BUSMONITORD3.3VD5V A3.3V 1.8VD3.3V16.897849MHzX1NRSTD3.3VATAPI IF5V7VDISC DETABCD4SW SWON/OFFA5V5X92-4400-0x/4730-0xX92-4740-0x/4750-0x DVD UNIT (X37-1020-00/01)Ref. No. Component N

16、ame Application/Function/Operation/ConditionIC1 AN8703FH RF signal processorIC2 NJU7042 IOP detector OP ampIC4 MN103S26E ATAPI interface, Servo/Spindle/Seek control, DVD ROM/CD ROM digital signal processor, 2M DRAMIC5 S-80829CLBB System reset ICIC6 LA6505 Motor & pickup actuator driverIC7 DF2328VTE2

17、54Q8 System microprocessorIC8 S-80815CLBB Voltage detectorIC9 UPC2918T 1.8V AVRIC10 NJM2880U33 3.3V AVRIC11 S-24C04BMFN Backup memory (EPROM)IC12 HD74LV2G66A Servo filter on/off controlQ1 2SB0970 Laser diode power supply for CD (APC)Q3 2SJ0536 Laser diode power supply for DVD (APC)Q4 UN5114 DVD lase

18、r high frequency superposition circuit on-switchQ5 UN5214Q6 2SD1819A 5V AVRQ9 UN5114 Loading motor control ( base L= ON )Q10 UN5214 Loading motor control ( base H= ON )Q13 UN5114 EEPROM power control (base L = ON )Q15 UN5114 FG signal inverter transistorCOMPONENTS DESCRIPTION System microprocessor :

19、 DF2328VTE254Q8 (DVD unit IC7)Pin No. Pin Name I/O Purpose / Description / Processing / Operation1 Vcc - Power supply input terminal25 A0A3 O Address bus6 Vss - GND714 A4A11 O Address bus15 Vss - GND1621 A12A17 O Address bus22 M2 I SODC monitor input terminal 223 (NC) - NC24 Vss - GND25 SW_AD I SW_A

20、+D detect input terminal26 SW_B I SW_B detect input terminal27 SW_C I SW_C detect input terminal28 M3 I SODC monitor input terminal 329 (NC) - NC30 NINT0 I SODC interrupt signal 0 input terminal31 NINT2 I SODC interrupt signal 2 input terminal32 NINT1 I SODC interrupt signal 1 input terminalMICROCOM

21、PUTERS TERMINAL DESCRIPTION6X92-4400-0x/4730-0xX92-4740-0x/4750-0xPin No. Pin Name I/O Purpose / Description / Processing / Operation33 Vcc - Power supply input terminal3437 (NC) - NC (PULL UP)38 Vss - GND3942 (NC) - NC (PULL UP)4346 CPUDT03 I/O DATA bus47 Vss - GND4851 CPUDT47 I/O DATA bus52 Vcc -

22、Power supply input terminal53 (NC) - NC54 (NC) I/O Flash memory data output terminal55 (NC) - NC56 (NC) I Flash memory data input terminal57 _LOADP O Loading control terminal (* Please see for Table of Loading/Eject Logic )58 (NC) - NC59 Vss - GND60 SEL0 I Destination select input terminal (* Please

23、 see for Table of Destination )61 SEL1 I Destination select input terminal (* Please see for Table of Destination )62 LOADM O Loading control terminal (* Please see for Table of Loading/Eject Logic )63 LO_MUTE O Loading driver muting control terminal (* Please see for Table of Loading/Eject Logic )6

24、4 SL_MUTE O Sled driver muting control terminal65 DRV_MUTE O Driver muting control terminal66 FG I FG signal input terminal67 M0 I SODC monitor input terminal 06870 (NC) - NC71 FWC I/O Flash memory data writhing control terminal72 FWE I Flash memory data writhing control terminal73 _RES I Reset sign

25、al input terminal74 (NC) - NC75 _STBY I Standby signal input terminal76 Vcc - Power supply input terminal77 XTAL I System clock input terminal (16.897849MHz)78 EXTAL I System clock input terminal (16.897849MHz)79 Vss - GND80 (NC) - NC81 Vcc - Power supply input terminal82 (NC) - NC83 _RD O Read sign

26、al output terminal84 _HWR O Write signal output terminal85 (NC) - NC86 _WAIT I Request for wait statement input terminal87 EEPON O EEPROM power supply control terminal88 WP O EEPROM WP control terminal89 SCL O EEPROM clock output terminal90 SDA I/O EEPROM data input/output terminal91 HFM O DVD laser

27、 high frequency superposition circuit control terminal92 (NC) - NCMICROCOMPUTERS TERMINAL DESCRIPTION7X92-4400-0x/4730-0xX92-4740-0x/4750-0xPin No. Pin Name I/O Purpose / Description / Processing / Operation93 AVcc - A/D converter Power supply input terminal94 Vref - A/D converter reference voltage

28、input terminal95 TEMP_DET I Temperature sensor input terminal96 (NC) - NC97 IOP I IOP monitor terminal98 (NC) - NC99 VHALF I Reference 1.65V input terminal100 DRV_HALF I Drive 1.65V input terminal101 STEP_A O Sled motor control terminal A102 STEP_B O Sled motor control terminal b103 AVss - A/D conve

29、rter GND terminal104 Vss - GND105 STDI O FEP serial data output terminal106 SCK O FEP serial clock output terminal107 SEN O FEP tip enable output terminal108 STBY O FEP standby output terminal109 (NC) - NC110 M1 I SODC monitor input terminal 1111 (NC) - NC112 CEON O Servo output terminal113 MD0 I Mo

30、de setup of operation input terminal114 MD1 I Mode setup of operation input terminal115 MD2 I Mode setup of operation / Flash memory writhing input terminal116 SW_F I SW_F detect input terminal117 SW_E I SW_E detect input terminal118 SW_AD I SW_A+D detect input terminal119 NCS O SODC chip select120

31、(NC) - NC Loading/Eject Logic TablePin No. Pin Name Hi-Z Short-Brake CW CCW57 _LOADP H H L H62 LOADM L L L H63 LO_MUTE L H H H Destination TableDESTINATIONPin No. DVD/CD DVD only60 H L61 H HMICROCOMPUTERS TERMINAL DESCRIPTION8X92-4400-0x/4730-0xX92-4740-0x/4750-0xCONSTRUCTION OF MAJOR PARTSThis mech

32、anism consists of five units.1. Main chassis assy (Maintenance of a disc and reading ofsignal)2. Roller lever assy (Disc loading)MECHANISM OPERATION EXPLANATION3. Disc guides assy (Maintenance and positioning of a discand the crack to disc is prevented)4. Outer chassis assy (The damper unit which pr

33、otects discplayback operation from external vibration)5. DVD unit (Control for DVD mechanism)DVD UNITOuter chassis assyFront chassis assyDisc guide assyDamper x 4Roller lever assyClamp chassis assyMain chassis assyFloating spring x 4OPERATION EXPLANATION Disc Loading Turning the loading switch ONWhe

34、n a disc is inserted in the mechanism that the detectionsliders will be open to the left and right side and the loadingswitch B or C is ON. The above starts the loading motor rota-tion.Note: In the case of 12cm disc, all switches (A, B, C, and D)turn on and 12cm disc distinction is carriedA BC DDete

35、ction slider (L) Detection slider (R)DiscONONDisc loading sw9X92-4400-0x/4730-0xX92-4740-0x/4750-0x Loading the discWhen the loading motor starts rotation, the worm gear alsostarts to turn as shown in the figure.The rotation force is transmitted to the gear train.When the force is transmitted to the

36、 final gear, the pull in thedisc for the mechanism.VM3 : Loading motor assyRollerDiscDetection slider (L)Detection slider (R)DiscDisc outDisc inRollerDisc guideThe disc is pulled in or out when the rollers are pushed againstthe disc guide. Operation of Trigger armWhen the rollers pull in the disc, t

37、he disc edge (disc outershape) pushes the trigger arm and rotates it.DiscINITAL POSITIONClamper chassisTrigger arm center of rotationPress of disc outer shapeBASIC CONSTRUCTIONThe following figure is looked at the mechanism for the re-verse-side.Even after the disc has been inserted, loading switch

38、is ONand the loading motor and the gear train also rotated. Al-though the gear train is rotating but it has not contact yet in theloading mechanism part.The trigger slider becomes starting point of operation.Trigger sliderRear lock armPinion gearLoading sliderDrive armLock sliderLock arm (R) Lock ar

39、m (L) Operation of the trigger slider and constructionof the loading sliderWhen the pinion gear is rotating but trigger slide has not con-tact to the rack gear.The loading slider is assembled with the trigger slider andpushed in the direction of the arrow by force of the spring.Trigger sliderRack ge

40、ar( * inside of trigeer slider)Pinion gearNot contact withTrigger slider between Rack gearPinion gearLoading sliderTrigger sliderSpringMECHANISM OPERATION EXPLANATION10X92-4400-0x/4730-0xX92-4740-0x/4750-0x Initial operation of the trigger sliderWhen the pressure of the disc rotates the trigger arm,

41、 the trig-ger arm (part of A position) pushed the trigger slider (part of Bposition).12cm DiscAABTrigger armCenter of rotationDisc Operation of the trigger slider (contact with pinion gear)When the trigger arm pushes the trigger slider and goes, therack gear of the trigger slider will be contact wit

42、h pinion gearthat has already rotated.The trigger slider (lack gear) moved out synchronization ofcauses the pinion gear to rotate.Trigger armAContact with triggerslider (rack gear) and pinion gear Operation of the loading sliderWhen the trigger slider begins to move out for arrow side, theboss part

43、of the trigger slider will push the loading slider andwill move the loading slider.Loading sliderBossBossTrigger sliderBossFLOW UNTIL DISC CHUCKING(Playback standby condition)Operation modes: To play back to DISC it is required to per-form flow of operations as shown below.q Moving the disc clamper

44、downwards so that it can clampthe disc during playback (disc chucking)w Moving the rollers that are in contact with the disc (Lowering the roller lever and stopped)e Float (suspend) the mechanism assy in order to protect itfrom external vibrations during disc playbackr Disc playback standby mode (series of completion of operation)t Moving the optical pickup assy so that if can readthe disc signals.The movement of the loading slider activates these series ofoperations.MECHANISM OPERATION EXPLANATION