Kenwood-DMSE9-md-sm 维修电路原理图.pdf
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1、MINIDISC RECORDERDM-SE7/SE7(G)/SE9SERVICE MANUAL 1997-11/B51-5395-00 (K/K) 319184?1703minidisc recorderreclevelO.T.E.on/standbyD.R.I.V.E.LRDIGITAL INOPTICALSYSTEMCONTROLRECINPLAYOUT12Indicator(B12-0318-04)Escutcheon*(B07-)Optic receiving module(W02-1181-05)Rectangutar receptacle(E08-0311-05)AC power
2、 cord*(E30-)Metallic cabinet*(A01-)Power cord bushing(J42-0083-05)Phono jack(E63-0120-05)Knob*(K29-)Knob*(K29-)Panel*(A60-)Front glass(B10-2372-03)Illustration is DM-SE9.* Refer to parts list on page 21.In compliance with Federal Regulations, following are reproduc-tions of labels on, or inside the
3、product relating to laser productsafety.KENWOOD-Crop. certifies this equipment conforms to DHHSRegulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J.DANGER : Laser radiation when open and interlock defeated.AVOID DIRECT EXPOSURE TO BEAMDM-SE9 2,COVER( 98.4.24 22:32 yW 2RadioFans.CN 收音机爱 好者资料库Bewa
4、re of condensationWhen water vapor comes into contact with the surface ofcold material, water drops are produced. If condensationoccurs, correct operation may not be possible, or the unitmay not function correctly.This is not a malfunction, however, and the unit should bedried.(To do this, turn the
5、POWER switch ON and leave the unitas it is for several hours.)Be especially careful in the following conditions: When the unit is brought from a cold place to a warm placeand there is a large temperature difference. When a heater starts operating. When the unit is brought from an air-conditioned pla
6、ce toa place of high temperature with high humidity. When there is a large difference between the internaltemperature of the unit and the ambient temperature, or inconditions where condensation occurs easily.DM-SE7/SE7(G)/SE92CONTENTS / ACCESSORIES / CAUTIONSCONTENTS / ACCESSORIES / CAUTIONS.2CIRCUI
7、T DESCRIPTION.3PC BOARD . 6SCHEMATIC DIAGRAM . 9EXPLODED VIEW .19PARTS LIST.21PARTS DESCRIPTIONS .27SPECIFICATIONS .Back coverAudio cord(E30-0615-05)AccessoriesContentsBatteries (2)Remote control unit(A70-1153-05) : RC-MSE7(A70-1169-05) : RC-MSE9Battery cover (A09-0129-08 : RC-MSE9)(A09-0356-08 : RC
8、-MSE7) System control cord(E30-2628-05)Optical fiber(B19-1529-05)AC plug adapter(E03-0115-05)CautionsNote related to transprotaion and movementBefore transporting or moving this unit, carry outthe following operations.1. With no disc loaded in the unit, press the on /standby key to on. Check that no
9、 disc is present in the unit.2. Wait a few seconds and verify that the displayshown appears.3. Press the on / standby key to off (standby).N OD I S CDM-SE9 2,COVER( 98.4.24 22:32 yW 3RadioFans.CN 收音机爱 好者资料库DM-SE7/SE7(G)/SE93CIRCUIT DESCRIPTION1. Main microprocessor : uPD784215GF5061-1 Microprocessor
10、 periphery block diagramPROTECT 23REFLECT 20 DISCIN 25 STTLMT 24 PHOTSW 21 RECSW 19 LOADIN 32LOADOUT 31 DRDT 73 DEMPH 77 DDQSY 48 DLAT 76 DSUB1 80 DSUB2 79 DWDT 74 DCLK 75 FLDCE 3 SRCLAT 78 VLCK 26 VLDT 63 VOLLAT 71 SBUSY 81 SDATA 82 KR1 54 KR2 55 KR3 56 INISW 581 A162 A1784 AD0: :91 AD792 A8 : :99
11、A155 RD6 WR7 CS8 ASTB33 SCHNG13 SCL34 SDA28 XLAT15 SENS30 MNT014 MNT212 XRST35 TX27 RECP29 MNT345 XINT47 SQSY48 DQSY50 MNT165 SRDT66 SWDT67 SCLK16 POWER72 MUTE17 LDON18 RMS36 BACKCHK44 REM46 CE59 BACKV83 BACKONuPD784215GF506 E2PROMCXD2652ARMDM-04LC8904QLC75710NESM5844AFEXDT10EXLAT11EXCK4Q1Q2 FLRSTQ3
12、 ADRSTQ4 DIGRSDRIVE Q5DINSEL Q6EMPHA Q7DARST Q8RAM(X25)IC21(X33)IC6(X33)IC2(X25)IC11(X14)IC1(X25)IC13(X25)IC2(X25)J3(X25)IC15MECHAELECTRIC Vol.SERIAL.DM-SE9 2,COVER( 98.4.24 22:32 yW 6No.NameI/ODescription1,2A16,17OSRAM address 3FLDCEOFL display driver CE4EXCKOExtension port clock 5RDOSRAM reading 6
13、WROSRAM writing 7CSOSRAM CS(L:SRAM enable)8STBOSRAMASTB9Vdd-Microcomputer power supply 10EXDTOExtension port data 11EXLATOExtension port latch 12XRSTISystem IC reset 13SLCOE2PROM clock 14MNT2ISystem IC BUSY15SENSISystem IC SENS16POWEROPOWER(H:Power on)17LDONOLaser ON(H:Laser diode ON)18RMSOPickup mi
14、crowave satisfactory(H:ON)19RECSWIMechanism REC position switch(L:REC SW ON)20REFLECTIDisc high reflex / low reflex switch(L:High reflex) 21PHOTSW-Mechanism PLAY position detection(L:Phot sensor ON)22(GND)TEST-Microcomputer power supply 23PROTECTIDisc protect switch24STTLMTIMechanism pickup position
15、 switch(L:Start limit SW ON)25D1SCINIMechanism disc insertion switch (L:Disc out SW ON)26VLCKOSRC clock27RECPOSystem IC RECP28XLATOSystem IC latch29MNT3ISystem IC spindle LOCK 30MNT0ISystem IC FOK31LOADOUTOLoading motor OUT direction drive(L:Loading IN)32LOADINOLoading motor IN direction drive(L:Loa
16、ding OUT)33SCHNGOE2PROM data output change(H:SDA output)34SDAI/O E2PROM data 35TXOSystem IC TX36BACKCHKOBack-up voltage check ON37Vdd-Microcomputer power supply38X2OOscillation element (12.5MHz)39X1IOscillation element (12.5MHz)40VSS-Microcomputer power supply41,42 XT2,1OClock oscillation element (U
17、nused)43RESETIMicrocomputer reset44REMIRemote control input45XlNTIATRAC interrupt46CEIMicrocomputer CE47SQSYISYNC interrupt48DQSYIInner DlN interrupt49SSQSYIExternal DlR interrupt50MNT1ISystem IC shock detection51Vdd-Microcomputer power52+5V-A/D standard voltageNo.NameI/ODescription53-IUnused5456 KR
18、13IKey return 1357-IUnused58INISWIDestination change59BACKVIBackup voltage detection60-IUnused61GND-Microcomputer power62-IUnused63VLDTOSRC data64+5V-D/A standard voltage65SRDTISystem IC input data66SWDTOSystem IC output data67SCLKOSystem IC clock68CRXDIExternal unit receiving data 69CTXDOExternal u
19、nit transmission data70CENAIExternal unit correspondence permission71VOLLATOElectron volume latch72MUTEOMUTE terminal73DRDTIDIR reading data74DWDTODIR, display driver data75DCLKODIR / display driver clock76DLATODIR latch77DEMPHIDIR emphasis78SRCLATOSRC latch79,80 DSUB2,1IDIRSUB2,181SBUSYO16bit synch
20、ro BUSY82VLCKO16bit synchro DATA83BACKONOBack-up voltage charge ON84-91 AD07OSRAM address / data92-99 A815OSRAM address / data100Vss-Microcomputer powerDM-SE7/SE7(G)/SE94CIRCUIT DESCRIPTION1-2 Pin descriptionDM-SE9 2,COVER( 98.4.24 22:32 yW 71-3 BackupEach following condition is backup to the memory
21、 withON/OFF of the AC power. Information of TOC UTOC information(Settlement contents of “editing etc. of record, TRACK edit-ing, titles”) Condition of POWER ON/OFF Condition of REC INPUT Condition of AUTO/MANUAL Setting of DIGITAL REC LEVEL Contents of the presetting title1-4 Initial statePOWER=OFFR
22、EC INPUT=ANALOGAUTO MANUAL =AUTOPLAY MODE=TRACKREPEAT=OFFTIME DISPLAY=SINGLE(+)REC LEVEL=-12dBDRIVE=ONPreset title=PRE1 : Pops=PRE2 : Rock=PRE3 : Classic=PRE4 : Jazz=PRE5 : Disco=PRE6 : Best Hits=PRE7 : Air Check=PRE8 : No.=PRE9 : Vol.1-5 Way of resetting a microprocessorWhen turning on while pressi
23、ng EJECT key, DM-SE7/SE9 initializes and starts a microprocessor.1-6 Key matrix :*DM-SE7/SE9 doesnt function.Mode for the inspection : It utilizes for the existence or non-existence of the FL display. Way of settingTurn on the AC power while pressing STOP(7)key. Way of cancelingPress STOP(7)key. Con
24、tentsPress()key or(4) key. Then, DM-SE9 becomes the following test mode.Press PLAY(3) key, to fix each test mode.To cancel each test mode, Press PLAY(3) key once again. DOT TEST(It becomes “Niagara indication” when PLAY key ispressed.) SEG TEST(When PLAY key is pressed all FL are lighted. Indication
25、 changes cyclically as follows when or 4key are pressed.)“All FL light up”“FL turn off the lights”“KATAKANA”“All FL light up” KEY TEST(For the mode for the production line, in the service, it does-nt use.)1-7 Extension IC2. AdjustmentDM-SE7/SE7(G)/SE9CIRCUIT DESCRIPTIONINI SW 58pin DescriptionHighOv
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