Kenwood-DW320V-cd-sm 维修电路原理图.pdf

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1、RLVIDEO OUTPUTAUDIO OUTPUTSYSTEMCONTROLAC 110120VAC 220240V21DISCSELECTOR12KARAOKEKEY CONTROLRANDOMREPEAT AUTO PAUSEECHOLEVELMIC MIX21MIC21ON SCREENDIGESTON/STANDBYDIGITAL VIDEOTWIN VIDEO CD PLAYER D-W320VTWIN VIDEO CD PLAYERD-W320VSERVICE MANUAL 1997-11/B51-5389-00 (K/K) 405In compliance with Feder

2、al Regulations, following are reproduc-tions of labels on, or inside the 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 EXPO

3、SURE TO BEAMPanel assy(A60-1413-08)Front glass(B10-2467-08)Tray panel(A21-3664-08)Phone jack(E11-0384-08)Tray panel(A21-3663-08)Knob(K29-6973-08)Knob(K29-6974-08)Phono jack(E63-1036-08)Slide switch(S90-0125-08)Miniature phone jack(E11-0188-05)Power cord bushing(J42-0083-05)AC power cord *(E30-)* Ref

4、er to parts list on page 24.D-W320V COVER( 97.11.28 11:11 PM yW 2RadioFans.CN 收音机爱 好者资料库D-W320V2CONTENTS / ACCESSORIESAC plug adapter. (1)(E03-0115-05)Use to adapt theplug on the powercord to the shape ofthe wall outlet.(Accessory only for regions where useis necessary.)Audio cord.(1)(E30-0505-05)CO

5、NTENTS .2DISASSEMBLY FOR REPAIR.3CIRCUIT DESCRIPTION.4ADJUSTMENT.10PC BOARD .11SCHEMATIC DIAGRAM .15EXPLODED VIEW .22PARTS LIST.24SPECIFICATIONS .Back coverAccessoriesCONTENTSSystem control cord.(2)(E30-2733-05)Video cord.(1)(E30-1427-05)D-W320V COVER( 97.11.28 11:11 PM yW 3RadioFans.CN 收音机爱 好者资料库D-

6、W320V3DISASSEMBLY FOR REPAIR1. Push the on / standby key.2. Push the open / close key (DISC 1).3. Remove the left tray panel.4. Push the open / close key (DISC 2).5. Remove the right tray panel.6. Push the open / close key (DISC 2).7. Turn the AC power off.8. Remove 5 screws (1) and front panel.9. T

7、urn the tray drive gear to clockwise (2) to remove righttray.10. Remove the hook (3) and then pull out the right tray.11. Turn the tray drive gear to counterclockwise (4). (Pickup down (5) CD mecha moves (6) Pickup up Left tray comes out (7)12. Remove the hook (same as 3) and then pull out the leftt

8、ray.1. HOW TO REMOVE THE TRAYS.2. HOW TO REMOVE THE CD MECHANISM HOLDER3. HOW TO MOUNT THE CD MECHANISM HOLDER53714261x4Fig.11. Remove 3 screws (1).2. Remove the clamper guide to arrow mark (2).3. To down the CD mechanism holder, set the slider to arrowmark (4) by turning the tray drive gear (5).4.

9、Remove the CD mechanism holder to arrow mark (3).1. Set the slider to arrow mark (4) by turning the tray drivegear (5).2. Inset the CD mechanism holder into the hole of slider (6).512123146CHASSISCD MECHANISM HOLDER(SUB CHASSIS)CLAMPER GUIDESLIDERFig.24. HOW TO MOUNT THE TRAYS.1. Mount the clamper g

10、uide (1).2. Fix 3 screws (2).3. Set the slider to arrow mark (A, B) by turning the traydrive gear.4. Insert the tray (A) to guide (B) on slider (3).5. Turning the tray drive gear to clockwise (4) set the sliderto arrow mark (C).6. Insert the tray (B) to guide (C) on slider (5).12CBA24532TRAY(A)TRAY(

11、B)Fig.35. HOW TO REPLACE THE PICKUP1. Remove 4 screws (1) and turn over the CD mechanismassy.# Short the short-land of the pickup before the following pro-cedures (2)2. Remove 3 connectors (3) and 3 screws (4).3. Remove the disc motor assy (5).4. Remove washer and gear (6).5. Remove 2 screws (7) and

12、 rod (8).6. Remove the pickup assy (9).Note : When mounting the pickup, in the reverse order of dis-assembly. Unsolder the short land after connectingthe connectors.short-land7244433517896x4DRIVE GEAR(DISC MOTOR Assy)Fig.4D-W320V COVER( 97.11.28 11:11 PM yW 6PIN NO.TERMINAL NAMEI/OFUNCTIONACT1771GOF

13、L grid drive8VDDVDD +5V9P/N IOPAL/NTSC INPUT H : PALH10P/N OIPAL/NTSC OUTPUT H : PALH11M/AOPAL/NTSC MANUAL/AUTO SELECT H : MANUALH12POWEROPOWER ON / OFF H : ONH13C-BUSYOVIDEO CD DATA STATUS H : BUSYH14CLOCKIVIDEO CD DATA CLOCKH/L15C-DATADATA SIGNAL to MPEG BOARDH/L16M-DATADATA SIGNAL from MPEG BOARD

14、H/L17RESETHARD RESETL18TR+TRAY MOTOR CONTROL H : OPENH19TR-TRAY MOTOR CONTROL H : CLOSEH20, 21AVSSGND22PU INPICK UP LOCATION L : INSIDEL23UP SWMECHA POSITION L : DISC1 & UPL24TRSW2DISC2 TRAY SW L : CLOSE H : OPEN24, 25TRSW2, 1IDISC2 TRAY SW L : CLOSE H : OPEN A/D2628KEY31IKEY INPUTA/D29AVDDAVDD +5V3

15、0AVREFAVREF +5V31, 32XT1, 2NC33VSSGND34X1X-TAL IN 4.19 MHz35X2X-TAL OUT 4.19 MHz36WRQIWRITE REQUESTH37COINOCOMMAND DATA TO CD DSPH/L38IFLOKARAOKE IC DATAH/L39IFSOKARAOKE IC CLOCKH/L40IFDOKARAOKE IC LATCHH41CQCKOCLOCK TO CD DSPH/L42SQOUTISQ DATA FROM CD DSPH/L43RWCOREAD/WRITE CONTROLH44M-BUSYOMAIN MI

16、COM STATUS H : BUSYH45SBUSYI/OSYSTEM CONTROL DATAH/L46SDATAI/OSYSTEM CONTROL STATUSH47REMOCONIREMOCON INPUTL48VPPGND49SP CONTOTRAY MOTOR SPEED CONTROL H : HIGH SPEEDH50SL-OSLED MOTOR REVERSEH51SL+OSLED MOTOR FORWARDH52VDDVDD +5V53FLATOKEY CON LED NATURAL H : ONH54SHARP OKEY CON LED SHARP H : ONH55MA

17、TURALOKEY CON LED FLAT : H : ONH56C-RESETOCD DSP, MPEG BOARD, MPEG MICOM RESETH57M-MUTEOMIC MUTE L : ONL58S-MUTEOSYSTEM MUTE L : ONL59NC ONOT USEDL60DRFICD FOCUS OK SIG. H : OKH6170P167OFL SEGMENT DRIVE71VLOADVLOAD - 32V7277P6P1OFL SEGMENT DRIVE7880108GOFL GRID DRIVED-W320V4CIRCUIT DESCRIPTION1. Sys

18、tem u-COM IC701 (MN1872423 KEN)Pin description.D-W320V COVER( 97.11.28 11:11 PM yW 7D-W320VCIRCUIT DESCRIPTION5Pin No.Terminal NameI/OFunction1VDA1ADC power supply2MICIILPF input for Mic input3LPFO1OLPF output for Mic input4VRA1ADC reference voltage5AILILine input (Lch)6LPFO2ONot used7VRA2ADC refere

19、nce voltage8AIRILine input (Rch)9LPFO3ONot used10GNDA1ADC ground11LIILch analog add input12LZONot used13GNDA2DAC ground14AOLODAC output (Lch)15VR2DAC reference voltage16AORODAC out put (Rch)17VDA2DAC power SUPPLY18RZONot used19RIIRch analog add input20VDXX-TAL power supply21XIIX-TAL in (16.9344 MHz)

20、 22XOOX-TAL out23GNDXGround24, 25VDD1, CKSDigital power supply26MCK2ONot used27MCK1OClock output2830SDO/BCKO/LRCKONot used31SDIIDigital audio data input32BCKIBit clock input33LRCKIChannel clock input34GNDDDigital ground35RESETIReset36IFDIU-com I/F data input37IFSIU-com I/F data shift clock input38IF

21、LIU-com I/F latch pulse input39EMPIDE-emphasis setting (H = DE-emphasis filter on)40EXTOONot used4143TEST/VDD2/VDLDigital power supply44GNDLDigital ground for DRAM2. KARAOKE IC/DAC IC 201 (TC9409 BF)Pin descriptionD-W320V 1P( 97.11.28 11:20 PM yW 2D-W320VCIRCUIT DESCRIPTUON6NoTerminalI/OSpecificatio

22、n1A+3.3V+3.3V power supply for analog video2CVOUTOComposite video output3, 4N/CONot used5.6VGNDAnalog video ground7R+5VDigital +5V power supply8, 9D+3.3VDigital +3.3V power supply10, 11DGNDDigital ground12CD CLKIAudio external frequency clock (384 FS)13EMPHOAudio emphasis output (High Active)14DILRC

23、KOAudio left right clock15HRDYHost data ready16DISCKOAudio bit clock17DIDATAOAudio data serial bus18HINTOHost interrupt19 N/CONot used 20VRSTIHardware reset (Low Active)21HCKIHost clock22HDIOI/OHost serial data bus23CDSCKICD bit clock24CDDATAICD data input25CDLRCKICD left right clock input26IPFLGICD

24、 data error flag (C2P0)27HSELIHost address / data select2830DATA/SFSY/SBSYINot used3. Connection terminal (CN P401) specification for MPEG board4. MPEG board block diagramR+5VDGNDR+5VDGNDR+5VDGNDAGND2MDRAMCD I/FSubcode I/FHost I/FD+3.3V A+3.3VS Video OutVideo OutAudio Out4MDRAM1chipMPEGDecoderLPFD-W

25、320V 1P( 97.11.28 11:20 PM yW 1D-W320VA/D VOLTAGE1.9 V2.45 V3.10 V3.64 VPIN No.PIN NAME26ANI2PLAYSTOPDIGEST27ANI1FLAT AUTO PAUSE ECHO UP ECHO DOWN28ANI0DISC2DISC1REPEATRANDOMCIRCUIT DESCRIPTION76. CD CHANGER CONTROL FUNCTION6-1 Mechanism Control I/O Port6-1-1 Input PortTRSW1 and TRSW2 will detect me

26、chanism operation mode.Refer to 5. I/O port UPSW detects tray position in tray 1 or 2mode. L : UPSW = on, H : UPSW = off6-1-2 Output PortTR+, TR- and SP CONT control evry motor in the mecha-nism. Refer to 5. I/O port6-2 Mechanism Control Specifications6-2-1 Motor Operation vs Output Port6-2-2 Brake

27、Operation SpecificationsBrake works before motor will change turning direction.Brake period is 500msec.6-2-3 Initial OperationMechanism will fix to model 1 or 2 when turn on after hardreset mode.1) Pickup will travel inwards2) Mechanism will select turning direction of motor and model1 or 2.In power

28、 on / standby operation, mechanism will selectmodel 1 to mode 4 so it will not have initial operation.6-2-4 Mechanism error MessageError message will erase when power is off (standby).detect sw wait periodconditionerror no.PU IN4 seconly initial operation4TRSW1M8 secin tray open mode, TRSW1TRSW2Mor

29、will not have 2.5voltage (M)1UPSW8 secin mechanism initial mode,UPSW will not sense voltage2TRSW1L8 secin changing disc, TRSW1 orTRSE2LTRSW2 will not have 3Ovoltage (L)TR+TR-Normal turnHLReverse turnLHStopHHBrakeHHA/D VOLTAGE0V2.5V5.0VTRSW2 (PIN24)CLOSEOPENOFFTRSW (PIN25)CLOSEOPENOFFSYMBOLLMH5-1 A /

30、 D input port key tablePin No. : IC701(MN 1872423KEN)A/D VOLTAGE0 V0.65 V1.23 VPIN No. PIN NAME26ANI2TRAY1 O/C TRAY2 O/C ON/STANDBY27ANI1KARAOKESHARPNATURAL28ANI0FFREVINPUTOUTPUTTR+ (PIN 1) TR- (PIN9) OUT (PIN7) OUT2 (PIN3)OPERATIONLLOPENOPENSTOPHLHLTRAY1OPENLHLHTRAY2 OPENHHLLBREAKPIN49HLSPEEDHIGHLO

31、WPIN No. PORT NAMET. NAMEFUNCTION24ANI4TRSW2TRAY1 POSITION DETECT25ANI3TRSW1TRAY2 POSITION DETECT5-2 Motor driver I/O conditionIC4 (TA7291S)5-4 CD changer I/OIC7015-5 TRSW A/D dataIC 7015-3 Motor speed control IC701(MN1872423KEN)5. Input / Output portD-W320V 1P( 97.11.28 11:20 PM yW 4D-W320VCIRCUIT

32、DESCRIPTION86-3 mechanism operation.MODE4MODE7MODE2MODE6MODE1MODE5MODE3MODE5MODE1MODE6MODE2MODE7MODE4MODE5DISC1DISC2PICK UPHMLHMHLLTRSW1TRSW2UP SWTurning directionof motor frominitial startnot initializenot initializeTOP viewnormal turnMOTOR turningdirection Reverse turnINITIAL : Initialization is f

33、inished when mechanism stops in mode 1 or 2. In initialized mode, mechanism will be in low speed mode.D-W320V 1P( 97.11.28 11:20 PM yW 3D-W320VCIRCUIT DESCRIPTION9STOP key enableIf key in STOP,return to startstage.STARTDisplay 01 00 00Tray open/close enable (display no change)For move Pick-up, FWD a

34、nd REV key enable only stop modeKey in PLAYLaser ON , Display Ld onKey in PlayFocus ON, Display FS onKey in PLAYPLAY (Track servo OFF) Display Sb OFF Key in PLAYPlay (Track servo ON)Key in STOPSTOPWITH 6 WITH TIME DISPLAY7. Test mode6 TIME DISPLAYSetting the test mode: While pressing the AUTO PAUSE,

35、 press the ON/STAND BY Key.Test mode will be cancelled by pressing theON/STANDBY key in the stop mode.D-W320V 1P( 97.11.28 11:21 PM yW 6D-W320VADJUSTMENT10CD sectionSince this CD system incorporates the following automaticadjustment function, when the pickup is replaced, it is not neces-sary to read

36、just itSince this CD unit does not need adjustment, the combinationof PWB and laser pickup unit is not restricted.Automatic adjustment item1. Focus offset(Fig.1)2. Tracking offset(Fig.2)3. E/F balance (Tracking error balance) (Fig.3)4. RF level AGC function (HF level : constant)5. RF level automatic

37、 follow-up of the tracking gainThis automatic adjustment is performed each time a disc ischanged. Therefore, each disc is played back using the optimalsettingsT/OPin 15 of IC1T/E BALANCEPin 7 of IC1F/O Pin 16 of IC1R5CNP1R13R15Fig .4 Checking pointsD-W320V 1P( 97.11.28 11:21 PM yW 5ACEGIBDFHJ2135746

38、BBBEBEBEEEBBEBEEBBEEBEBE171242540416465801111222233334441291485BBEEBEBEBE1911164323348491716158040416465252416118361971481846463212242431301818BBEEEEBBSYSTEMCONTROLVIDEOOUTPUTPOWER TRANSFORMERRefer to the schematic diagram for the value of resistors and capacitors.PC BOARD(Component side view)1112PC

39、B/SD 2P 97.11.28 11:30 PM y W 1KLNPRTMOQS2135746EB17171713AC110120VAC220240VMICMIXMICMIXMIC 2MIC 1Refer to the schematic diagram for the value of resistors and capacitors.PC BOARD(Component side view)1314PCB/SD 2P 97.11.28 11:30 PM y W 2ACEGIBDFHJ2135746M-PEG CONTROL & DISPLAY u-COMCD SERVOIC1PICKUP

40、 UNITIC2M-PEG BOARD (W02-2618-05)IC4IC3CK MECHA.DH MECHA.2.5V5.0V2.5V2.6V2.5V2.6V2.5V2.5V2.6V2.6V2.5V2.5V2.6V2.6V2.6V2.6V2.6V0V3.8V0.6V0.6V0V7.4V5.0V0V2.6V2.5V1.8V0V2.6V4.9V0V4.7V0V2.6V0V4.9V0V1.9V0V2.6V2.8V2.0V0.4V1.6V0.3V4.5V2.5V2.6V3.7V3.2V3.3V3.5V2.5V2.6V5.0V7.4V6.5V2.6V2.5V3.7V3.2V3.4V3.5V2.5V2

41、.6V2.6V2.6V2.5V2.5V2.6V2.6V2.6V2.6V2.7V2.6V2.7V2.3V2.3V2.3V0V2.4V2.5V2.6V2.5V2.6V4.9V2.5V4.6V0V0V2.6V2.6V2.5V2.6V2.2V3.4V0.2V2.0V3.6V4.3VIC1: LA9241MIC2:IC3:LC78631EM56748FPQ1,3 : KTA1266GRD1: 1SS133IC4: TA7291SSPACE ONLYD2RL104A:Q1CNP1RF/SERVOCNS1CNS1D.S.PACTUATOR: MN1872423KEN: IX0238: IC74HCU04F:

42、 PST994IC401IC701IC402IC702D1DRIVERLOADING MOTORCNS2CNP2D2BTLDRIVERQ3CNS3CNP3CNS2CNS3LOCATIONPICKUPSWITCHCNP401TRAY1(A)TRAY1 POSITIONM1SWITCHMTRAY2(B)SWITCHPOSITIONSWITCHMECHA.TRAY2 POSITIONCNS4CNP4GNDKARAOKEC411 0.01C410 0.01C4120.01REGBASEVCCVCTL3(+)VCTL3(-)VCTL3(OUT)VM3(-)VM3(+)GNDGNDGNDGNDVM4(+)

43、VM4(-)GAIN4REG5VVCCGAIN2VCTL2(-)VM2(-)VM2(+)GNDGNDGNDGNDVM1(+)VM1(-)VCTL1(-)VREF-INVREF-OUTTRYVCCMO1GNDVCCMO0SP CONTTR-+8V123456789C53220PC250.1C330.01C497170848418492423251950SL-CDRESSL+51DATAD23BCLKDC2PO26DRF62SFSYPW60EFLGSBSY6158MUTERRVDD56RCHPRCHN5759EMPHA BTR+SP CONTTRSW2UPSWTRSW1TR-0.01C5253+5

44、VRVSS53XVDDXIN54+5V51XOUTXVSS49LVSSLCHN505255LRCKD25L40122uH+3.3V+100u6.3+666570696867WRQFSXDOUTCOINSQOUTRWC64SBCK47P47PC4847PC4747P36WRQPU INCOIN3742SQOUTSERVO GNDRWC43CQCK41696867403536373839+3.3VC4054863SERVO(8V)+8V47PC46+5V74737271797877767580C400.01CONT2FASTRRSCQCKDEF1CSTEST54.2M16M1C392PDO10.0

45、1+3.3MVPDOC41330u10R57 VCOC+5V5149CLCLKDEF50R451KR611K+5V+5VR31u50C3+56012R2+5V+5VNCCEVR58575655545352+6159BHIRH1LF2LDSLDO64636260C36C370.33u50C380.47u500.1u50C34100u10C35 0.01R601KR591K+5VC40.0147u10+C2DATR58 3.3M34PDO2AVSS0.22u50C43+1K680R4856FRAVDD+5VR49 1.2K7ISETR5027KR4648NC47NC+6+5VR+5VVGND768

46、D+3.3V86967SQOUTWRQCDRESDRFR55421K4241LRSYP3/DFLRDFLRODACKOCONT1R54 431K+5V44ROMXA43CK232NC(CVBS)3254VGNDNC5470COIN7168CQCKRWC7R4047KC28R361KR3756K27P4342SLOR3841RFS-5.6K2700P47040RFSM3938CV-CV+R41C440.047+5V4.7KFIN2FEFIN110.01C112345C63542TBSCD610KR5100KR40.17C7R6890.033C9C81000P2.2KR70.1u50+100C11

47、C106.8K0.033R8TE-TETESD1617TEST21819P4TEST32021TES2223FSEQPCKHFL3736TES35HFLSLD+SLD-P5THLDTEST4VDDJP+JP-RMPH B24TGL303132333425262728293433TGLJP-SLDSL-SL+JP+32293031C243300PTDFFTOFFNCLPF03111KR90.047C120.06813180PC13R10 27KR111214R12 3.3K12K15THTD-TDSPOSLEOSPSPISPGSP-FDFEFE-FD-FAFA-AGND272823242526C

48、191000P202122171819C17330P0.01C16R1910K47KR201.5KR21161KR13R1515KR1722K0.1C14GNDA110SLDFV/P11K2E355F44B23A1u16C2A+4689TAI1011EPMOVSS1213EFMITEST11415CLV-CLV+R39C29R434.7u25C32R42 33KC310.033C301000P4544FSCDGNDSLI4.7K1MB51FTR-FO+32FO-4FO+TR+FO-TR+2200PVCC1REF1VCC2DRFR1 1KLRCKOC45 109DGNDD+3.3V9101112

49、DGNDCDCLK1211PU-INSERVO(8V)SERVO GND1314EMPHA ALRCK14131615HRDYBCLK15163130SL+SL-+5V+8V1718DATAAHINT17182019CLCKVRST192021HCK21HDIO2222+8V+3.3V24DATAD242626C2PO26LRCKD252525R402 4.7K28R401 4.7KDATA283029R403 4.7KSFSTSBST3029HSEL2727KARAOKEC2POCDCLK AGND+8V4553BCLKD232323BCLKEMPHA BLRCKSP CONTTRSW2TR

50、-TR+4243TRSW1UPSWDATAD1KR56+5V+5V+5VT.P+3031C23 47u10R301.2KL10.82uHNC+R24 10KC18 4700PR23 39K1.2KR2882KR31 82KC210.47u50R29 10KC22 1u5033KR141KVREF2112TR-TR+R1822K10KR3336NC3534NC3233NC303131NCNCNC1324343FO+FO-45766556PDGND8787LDVR1u50C26+C55+R643.9KR685.6K100u10+5V+8V+5V2928262724252322R3410K24259