Kenwood-DVF3080-cd-sm 维修电路原理图.pdf

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1、DVD/VCD/CD PLAYERDVF-3080-S/8100SERVICE MANUAL 2004-7 PRINTED IN KOREAB51-5894-00 (K/K) PDF70%70%POWREOUTOUTOUTOUTYCBCRCOMPONENT VIDEOAUDIOVIDEORLDIGITAL OUT(PCM/BIT STREAM)COAXIALS VIDEOPanel *(A60-)Tray panel *(A29)Front glass(B03-3945-08)Jack, RCA *(E63-)Case(A01-3925-08)Power cord *(E30-)In comp

2、liance with Federal Regulations, following are repro-duction of labels on, or inside the product relating to laserproduct safety.KENWOOD Corp. certifies this equipment conforms to DHHSRegulations No.21 CFR 1040. 10, Chapter 1, subchapter J.DANGER : Laser radiation when open and interlock defeated. A

3、VOID DIRECT EXPOSURE TO BEAM.Caution : No connection of ground line if disassemble the unit. Please connect the ground line on rear panel, PCBs, Chassis and some others.* Refer to parts list on page 31.RadioFans.CN 收音机爱 好者资料库DVF-3080-S/81002CONTENTS / ACCESSORIES / CAUTIONSPlease confirm that the fo

4、llowing accessories are present.Audio cord (Red, White) .(1)(E30-7334-08) : K,P,Y(E30-7335-08) : E,XBatteries (R03/AAA -size) .(2)Remote control unit .(1)(A70-1660-08)Video cable(Yellow) .(1)(E30-7332-08) : K,P,Y(E30-7333-08) : E,XCoaxial cable (Black) .(1)(E30-7336-08) : E,X(E30-7337-08) : K,P,YThe

5、 marking of products using lasers(For countries other than U.S.A. and U.S.-Military)The marking this product has been classified as Class 1. Itmeans that there is no danger of hazardous radiation outsidethe product.Location: Back panel CLASS 1LASER PRODUCTCaution on condensationBefore transporting o

6、r moving this unit, carry out thefollowing operations.1. Set the POWER ON/OFF switch to the ONwithout loading a disc.2. Wait a few seconds and verify that the displayshown appears.NO DISC3. Set the POWER ON/OFF switch to OFF.Note related to transportation and movementCondensation (of dew) may occur

7、inside the unit when there is a greatdifference in temperature between this unit and the outside. This unitmay not function properly if condensation occurs. In this case, leavethe unit for a few hours and restart the operation after the condensa-tion has dried up.Be specially cautious against conden

8、sation in the following circum-stances:When this unit is carried from one place to another across a largedifference in temperature, when the humidity in the room wherethis unit is installed increases, etc.DTS and DTS Digital Out are reg-istered trademarks of Digital TheaterSystems, Inc.Manufactured

9、under license from Dolby Laboratories.Dolby and the double-D symbol are trademarks of DolbyLaboratories.The microprocessor may fall into malfunction (impossibility to operate erroneous display, etc.) when the power cord is unplugged while power is ON or due to an external factor.In this case, switch

10、 off the power, wait for several seconds, and then switch the power on again.Operation to resetACCESSORIESCAUTIONSCONTENTS / ACCESSORIES / CAUTIONS.2DISASSEMBLY FOR REPAIR.3BLOCK DIAGRAM .4DECK MECHANISM .7ELECTRICAL TROUBLESHOOTING GUIDE .11WAVEFORMS.15PC BOARD .19CIRCUIT VOLTAGE CHART .21SCHEMATIC

11、 DIAGRAM .23EXPLODED VIEW .30PARTS LIST.31SPECIFICATIONS.BACK COVERCONTENTSRadioFans.CN 收音机爱 好者资料库DVF-3080-S/81003DISASSEMBLY FOR REPAIR1) Insert and push a Driver in the emergency ejecthole(A) at the right side, or put the Driver on theLever(B) of the Gear Emergency and pull the Lever(B) in directi

12、on of arrow so that the Tray Disc is ejectedabout 1520mm.2) Pull the Tray Disc until it is separated from the BaseMain completely.Fig. How to Reset Parental Lock.1. Connect the TV set to DVF-3080.2. Push the power switch of DVF-3080 to be on.3. Check the display of DVF-3080 shown “NO DISC”.4. Push t

13、he “SETUP” key of remote control and TV has “set up menu”5. Select the “16:9” on TV.6. Push #key 1 3 9 7 1 3 9 and ENTER.Push #key again if mistype.7. Push the power switch of DVF-3080 to be off.DVF-3080-S/81004BLOCK DIAGRAMMMDISCSPINDLE MOTORLOADINGMOTORDVD : A,B,C,D,RF0CD : A,B,C,D,E,F,RF0CDMDI,DV

14、DMDIPICKUPKEY Input6MHzB/PbIC502KV802.KV852.1M8BITFLASH ROMM-RESETROMAD0:19ROMRDROMWRMD00:15L/RCVBSR/PrG/YTV_DAC0:3YCVF+AC 90V240V50HZ/60HzVF-27VA5VVD33,VD33D12V27MHzPWRCTL1.8VIC504AT24C02AEEPROMIC602OP-AMPRC901R/CLOAD+,-FOCUS+,-TRACK+,-SPINDLE+,-SLED(FEEDING)MOTORSLED+,-MVD33DVD33DVD18/VD33VD33D/5V

15、BCLKLRCLKDACCLKIC604MM1623XFBEVIDEO BUFFERIECDAOUTCOAXIALSPDID2_T1:3SCART_16:9RGB_SEL3V3MCDLD,DVDLD,SVREF215V/8VHOMESWINSW,OUTSWROMDATA0:75.2VAIC901GMS81C2012(Hynix)Front MicomPOWERBOARDVFD_RXDS_REQ5.2VA8VDMUTEIIC/VFD/DAC_SCKIC5031M16BIT4BankSDRAMVD33DIIC/VFD/DAC_TXD+12V5VYC_MIXVIDEO_SWSER3,DAC_ML0O

16、PEN,CLOSE,SLEGP,SPINDLE,FOCUS,TRACK,SVREFIC50674LCX373VD33DGPOPALEDAC_RSTDMUTED2_T1:3SCART_16:9RGB_SELDAC_RSTCD_DVD, VR_CD,VR_DVDCD_DVD_CTXSFGN,XSFGPCN505EJTAGTRSTTDITDOTMSTCK3.3V13.3V2VD18IC601CS43912DACIC201IP4504DRVSBOPU_SELJACK-27VA/VF+/VF-DIG901FLD DISPLAYMA00:11DMCLKCSJBA0BA1DQMWEJCASJRASJIC50

17、1ALi M33551. Overall Block DiagramDVF-3080-S/81005BLOCK DIAGRAM8VT5VD-23VAVF+RECTIFIERLINE FILTERSWITCHING ICTRANSFEED B.5.2VAVF-RECTIFIER(FLD)RECTIFIER(3.8V)RECTIFIER(10V)LPFLPFRECTIFIER(14V)LPF12VPWR CTLMULTIREG.1.8V3.3VRECTIFIER(5.2V)LPFAC100240VON/OFFPICKUPIC501ALI M3355DVDPLAYERCOMBOCHIPMDIC201

18、IP4504Motor DriverIC50364MSDRAMFLASHROMEEPROMDVDLD,CDLD,CD_DVDDVDMDI.CDMDISVREF21DVD:A,B,C,D,RFOCD:A,B,C,D,E,F,RFOSLEGP,SPINDLEFOCUS,TRACKDRVSB,CLOSEOPEN,SVREF15FOCUS+,FOCUS-TRACK+,TRACK-SPINDLE+,SPINDLE-SLED+,SLED-LOAD+,LOAD-OPENSW,CLOSESW,LIMITSWMA0:11DQMCLKCSCASRASWEMD0:15IIC/VFD/DAC_SCKIIC/VFD/D

19、AC_TXDROMAD0:21ROMRDROMWRROMDATA0:72. Power(SMPS) Block Diagram3. SERVO Block DiagramDVF-3080-S/81006BLOCK DIAGRAM4. MPEG & MEMORY Block Diagram5. VIDEO & AUDIO Block DiagramIC501(MPEG+DSP+RF)ALiM3355IC503SDRAM64MIC504EEPROMFRONT PANNELIC502KV802.KV852.CPURST,ROMWR,ROMRDROMAD(0:19)TV_DAC0TV_DAC1TV_D

20、AC2TV_DAC3BCLK,LRCLK,DACCLKDAC_RSTSER(0:3)DAC_ML0VIDEOInterfaceAUDIOInterfacePickupDVD-MD1 , CD-MDISVREF21,DVD:A,B,C,D,RFO CD:A,B,C,D,E ,F ,RFOF+, F-, T+, T-, CD_DVDDVDLD CDLD,IIC/VFD/DAC_CLKIIC/VFD/DAC_TXDMRESET,S_REQVFD_RXD X50127MHzBA1,BA0 ,CSJ,RASJ,CASJ,WEJ,DGM,DMCLKMD0:15 ,MA0:11 ,MPEG(RGB)/(YP

21、bPr)CVBSCOMPONENT(Y.Pb.Pr)SCART(RGB)CVBSIC604VIDEO 6dBAmpIC601AUDIO DAC(2CH)IC602(OP Amp)LPF&BufferAUDIO RAUDIO LMPEG DAC_RSTDACCLKBCLKLRCLKSER3A/VJACKDVF-3080-S/81007DECK MECHANISM PARTS LOCATIONStarting No.11, 21, 2, 31, 2, 3, 411, 61, 2, 61, 2, 6, 81, 2, 6, 8,91, 2, 71, 2, 71, 21, 2 ,131, 2, 13,

22、141, 2, 7, 12,13, 141, 2, 131, 2, 7, 12,13, 14, 15,16, 17123456789101112131415161718Main BaseClamp AssemblyDiscPlate ClampMagnet Clamp Clamp UpperTray DiscBase Assembly SledGear FeedGearMiddleGear RackRubber RearFrame AssemblyUp/DownBelt LoadingGear PulleyGear LoadingGuide Up/DownPWB AssemblyLoading

23、Base Main4 Screws,1 Connector1 Locking Tabs1 Screw1 Screw1 Locking Tab1 Locking Tab1 Locking Tab1 Hook2Screw2 Locking Tabs4-14-14-14-14-14-24-34-34-34-34-34-44-44-44-44-44-44-4BottomBottom ProcedurePartsFixing TypeFig-ureDisassemblyNoteWhen reassembling, perform the procedure inreverse order.The “Bo

24、ttom” on Disassembly column of aboveTable indicates the part should be disassembledat the Bottom side. Top View (Without Tray) Bottom View Top View (With Tray)DVF-3080-S/81008DECK MECHANISM DISASSEMBLY1.Main Base (Fig. 4-1)1-1. Clamp Assembly Disc1) Place the Clamp Assembly Disc as Fig. (A)2) Lift u

25、p the Clamp Assembly Disc in direction ofarrow(A).3) Separate the Clamp Assembly Disc from the HolderClamp.1-1-1. Plate Clamp1) Turn the Plate Clamp to counterclockwise direction andthen lift up the Plate Clamp.1-1-2. Magnet Clamp1-1-3.Clamp Upper2. Tray Disc (Fig. 4-2)1) Insert and push a Driver in

26、 the emergency ejecthole(A) at the right side, or put the Driver on theLever(B) of the Gear Emergency and pull the Lever(B) in direction of arrow so that the Tray Disc is ejectedabout 1520mm.2) Pull the Tray Disc until it is separated from the BaseMain completely. Fig. 4-1Fig. 4-2DVF-3080-S/81009DEC

27、K MECHANISM DISASSEMBLY3.Base Assembly Sled (Fig. 4-3)1) Release 4 Screw(S2).2) Disconnect the FFC Connector(C1)3-1. Gear Feed3-2. Gear Middle3-3. Gear Rack1) Release the Scerw(S3)4. Rubber Rear (Fig. 4-3) Fig. 4-3DVF-3080-S/810010DECK MECHANISM DISASSEMBLY5. Frame Assembly Up/Down (Fig. 4-4)Put the

28、 Base Main face down(Bottom Side)1) Release the screw(S4)2) Unlock the Locking Tab(L3) in direction of arrow andthen lift up the Frame Assembly Up/Down to separateit from the Base Main. When reassembling move the Guide Up/Down in directionof arrow(C) until it is positioned as Fig.(C). When reassembl

29、ing insert (A) portion of the FrameAssembly Up/Down in the (B) portion of the GuideUp/Down as Fig.(B)6. Belt Loading(Fig. 4-4)Put the Base Main on original position(Top Side)7. Gear pulley (Fig. 4-4)1) Unlock the Locking Tab(L4) in direction of arrow(B) andthen separate the Gear Pulley from the Base

30、 Main.8. Gear Loading (Fig. 4-4)9. Guide Up/Down (Fig. 4-4)1) Move the Guide Up/Down in direction of arrow(A) asFig.(A)2) Push the Locking Tab(L5) down and then lift up theGuide Up/Down to separate it from the Base Main.When reassembling place the Guide Up/Down as Fig.(C)and move it in direction arr

31、ow(B) until it is locked by theLocking Tab(L5). And confirm the Guide Up/Down as Fig.(A)10. PWB Assembly Loading (Fig. 4-4)Put the Base Main face down(Bottom Side)1) Release 1 Screws(S5)2) Unlock the Loading Motor (C2) from the Hook (H1) onthe Base Main.3) Unlock 2 Locking Tabs(L6) and separate the

32、PWBAssembly Loading from the Base Main.11. Base Main(Fig. 4-4)NoteNoteNoteNoteNoteFig. 4-4DVF-3080-S/810011ELECTRICAL TROUBLESHOOTING GUIDE2. System operation flowPower on1.initializes SERVO,DSP and RISC registers2.write RISC code to SDRAM 3.Reset RISCShow LOGOSLED at Inner Side?SLED Moves to Inner

33、PositionTray Closed?Tray Close to closed position1.Judge whether have disc and disc type 2.Jump to related disc reading procedure ReceivedOpen/close key?1.Execute Pressed Key and IR Key2.System operation on routine loop 1.Stop playback and open tray2.Display tray open message and LOGOReceiveclose ke

34、y?noyesnoyesnoyesnoyesNo 5V_ANo 5.2VAIs 5.2VA section working?Is 5.2V present at emitterof Q107?Replace Q107.Is there a DC voltage At(+) terminal of BD101?Is there a DC voltage atR101?Replace IC101.note: This Trobleshooting has various information.Check F1011. Power check flowNo VF+Is 5.2VA section

35、working?Replace D102.Check F102NONOYESYESYESYESReplace R101.YESReplace BD101.YESYESA.B.NONONONODVF-3080-S/810012ELECTRICAL TROUBLESHOOTING GUIDEShow LOGOAyesReset or Power on FlashMemory operatesProperly?Check connection on lines between FLASH& M3355 and the FLASH access timewhether is suitable or n

36、ot.SDRAMworks properly?Check connection lines betweenSDRAM(IC503) & M3355 and theSDRAM is damaged.M3355VIDEO outputsproperly?Check the related circuit of M3355.(IC501 PIN 2.3.7.8 check)HaveTV signal output?DoesTray move insidewhen it is not at closed position?Check the filtering and amp circuit ofTV

37、 signal .(IC604)BNoNoYESYESYESYESNoNONONormalTROUT & TRINsignals?NOCheck the load OPEN &CLOSE switchNormalTRCLOSE &TROPEN signal?NOCheck the Tray control IO pinson M3355.NormalLOAD+ & LOADsignalNOCheck the Tray control amplifyingcircuit on Motor driver.(IC201)Check the cable connection betweenmain P

38、CBA and loader. (MECHA)Check AV cableconnection to TV setNOYESYESYESTestCheck the AC Voltage(110V or 220V)Switch on the Power PCBACheck the Power PARTIs the DC Voltage Outputs OK? (5.2V,5V,1.8V,3.3V,8V,12V)Check the Power PARTIs 3.3V, 1.8V,5V,12V and 8V outputs normal on main PCBCheck the IC105 or d

39、iodeConnect to PC RS232 Cable andUpdate the flash memory codeUpdateFlash(IC502)Successfully?A1.Check 27MHz system clock.2.Check system reset circuit.3.Check flash R/W enable signal PRD4.Check RS232 Signals5.Check flash memory related circuitReplace flash(IC502)YesyesyesYesNoNo NoNo DVF-3080-S/810013

40、ELECTRICAL TROUBLESHOOTING GUIDELaser turns on whenreading disc?)CYesLD01 or LD02 outputproperly?Check the laser power circuiton M3355 and connecting topower transistor. (Q201, Q202)Collectorvoltage of powertransistor is OK?( Q201, Q202)Check the related circuit onlaser power TR DNoYesCheck cable co

41、nnection betweentransistor output and pick-up head.Check the RF connectionbetween MD and M3355.Put disc in?Proper RF signal?Laser offCheck the related circuiton M3355 RF signalDoes spindle rotate?Disc ID is correct?ProperSpindle signal onM3355Check spindle relatedcircuit on M3355Proper RF signal?Che

42、ck the related circuiton M3355 RF signalCheck the RF connectionbetween MD and M3355.YesYesYesYesYesYesYesNoNoNoNoNoNoNoDoesthe SLED moveto inner side when it is atouter position on?BYesMotor Driver DRVSBPin is High?Check the connection line ofDRVSB signalMotor Driver DRVSBPin is High?Check the relat

43、ed circuit ofFOCUS.SLED+ and SLED- outputproperly ?Check the amp circuit onmotor driver.CNoCheck the cable connectionwith MECHA.OpticalLens has movementsfor searchingFocus?Proper Focus outputsto motor driver?Check Focus connection onM3355 and motor driver.Proper F+& F- outputs?Check the amp circuit

44、onmotor driver.Check cable connect on withpick-up head.yesNoDo not put in disc and trayclose.NoNoNoYesYesYesYesYesNoNoDVF-3080-S/810014ELECTRICAL TROUBLESHOOTING GUIDENormalAudio outputwhen disc playback?EDAC receivedcorrect data stream?Check connection between M3355& Audio DAC. (Check DAC_RST#,SER3

45、, BCLK, LRCK,MCLKNormalAudio DACout? (IC601)Check the related circuit ofAudio DAC. (Check Audioout Pin 14, 15,18,19)Check Audio filter, amplify, mutecircuit. (IC602 Application circuit)?TEST ENDCommunicationsbetween IR.VFD Front panel key& M3355 & Front u-com(IC901)is normally?Check communication li

46、neson M3355.Check the cable connectionon Front panel.YesNormalIR. VFD & Frontpanel keyfunctions?YesYesNoNoNoNoNoYesYesYesFocus ON OK?DYesPropersignals on A, B, C,D of M3355Check the related circuiton M3355 SBAD signal .NoNoCheck the related circuiton M3355.Proper SBAD signalon M3355?Check connection

47、s betweenM3355 and pick-up head.Track On OK?Check cable connection onpick-up head.Proper tracking signalon M3355?Proper M3355 track signalon M3355?Check the relatedcircuit on M3355Check the track connectionon M3355 and motor driver.YesNoE. Proper FE signalon M3355?Check the related circuiton M3355 F

48、E signalDisc is play?T+ & T- outputproperly?Check the tracking controlamp circuit on motor driver.Check RF signal waveform.YesYesNoNoNoNoNoYesYesYesNoDVF-3080-S/810015WAVEFORMS1. SYSTEM 27MHz CLOCK, RESET SIGNAL1) M3355 main clock is at 27MHz(X501)3.1V,27MHzFIG 1-12) M3355 reset is low active5.2VAPW

49、R_CTL(CN505 PIN7)M_RESET(CN505 PIN9)TRSTFIG 1-22. SDRAM CLOCK3. TRAY OPEN/CLOSE SIGNALOPEN(CN203 PIN3)CLOSE(CN203 PIN4)LM-(IC201 PIN14)LM+(IC201 PIN13)OPENCLOSE1) SDRAM clock is at 135MHzIC503 PIN38CLK=135MHz,Vp-p=3.3VFIG 2-11) Tray open/close waveformFIG 3-12) Tray open waveformOPEN(CN203 PIN3)CLOS

50、E(CN203 PIN4)LM-(IC201 PIN14)LM+(IC201 PIN13)FIG 3-2OPEN(CN203 PIN3)CLOSE(CN203 PIN4)LM-(IC201 PIN14)LM+(IC201 PIN13)3) Tray close waveformFIG 3-34. SLED CONTROLSIGNAL(NO DISC CONDITION)RELATED SLEGP(2.1V/1.5V/0.85V)(IC501 PIN80)DRVSB(3.3V/0V)(IC501 PIN22)SLED+(7.3V/4V/2.4V)(IC201 PIN16)SLED-(7.3V/4