Kenwood-KVT-50-DVDRY-Service-Manual电路原理图.pdf

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1、This product uses Lead Free solder.This product complies with the RoHS directive for the European market. 2008-3 PRINTED IN JA PANB53-0621-00 (N) 519SERVICE MANUALKVT-50DVDRY/512/522DVDMONITOR WITH DVD RECEIVER/522DVDY/532DVD/532DVDMOFFOPEN/CLOSETELSCANMONITOR WITH DVD RECEIVERV.OFFSRC NAVSFKVT-522D

2、VDATTAUTO +FMVOLUMEEJECTTIIllustrations is KVT-522DVDRemote controller *(A70-2083-15)RC-DV340Escutcheon(B07-3159-02)Mounting hardware assy(J21-9716-03)Lever(D10-4589-04) x2Screw set *(N99-1758-15)SIZE AAA BATTERY *(NOT SUPPLIED)DC cord *(E30-6815-05)DC cord *(E30-6816-05)Cord with plug(E30-6813-05)*

3、 Depends on the models. Refer to the parts list.REV: 5mPRK: 2mBU,GND: 1mThe IC3, and IC11 in the DVD unit (X37-1100-03) are not replaceable components.When these ICs are defective, replace the whole DVD mechanism assembly (X92-6160-00).You cannot replace only the board.TEST MODE is the same as DDX51

4、2.Please refer to the service manual (DDX512: B53-0620-00).2KVT-50DVDRY/512/522DVD/522DVDY/532DVD/532DVDMCAUTIONS IN ASSEMBLING PANEL DRIVE MECHANISM (A10-5171)Observe the instructions described in this document when you are going to replace the parts or components that are shown in this document.1.

5、 Replacement of motor fl at spring When mounting the flat spring that shall be in contact with the worm gear, press the spring toward the direction shown with an arrow so that there will be no gap be-tween the tip of the gear and the spring and then mount the spring. The gear shall be pressure-inser

6、ted into the motor. Note that there are two motors. Above operation of mounting the fl at spring is required on both of them. Tilt drive gear train Slide drive gear trainMount the flat spring while pressing it towards the direction shown with an arrow so that there will be no clearance.Mount the fla

7、t spring while pressing it towards the direction shown with an arrow so that there will be no clearance.DC MotorWormFlat SpringDC MotorWormFlat Spring3KVT-50DVDRY/512/522DVD/522DVDY/532DVD/532DVDMCAUTIONS IN ASSEMBLING PANEL DRIVE MECHANISM (A10-5171)2. Phase matching among gears Monitor tilt is dri

8、ven under the control of the rotary sensor and the phase matching among gears and sensor is required. The procedure for the phase matching is de-scribed in the rest of this subsection.1) Align the mark on the rack with the pin. (When the monitor is folded down at 0 degree, the rack is located at the

9、 position where the mark and pin are aligned.2) Insert the gear while keeping aligning the rack pin with the notched section on the tilt gear 7.3) Pre-assemble the tilt motor bracket assembly (BKT Assy).4) Align the notch on the sensor BKT with the concave section of the sensor in the Assy.5) While

10、keeping the conditions stated in 3) and 4), insert the tilt motor BKT Assy transversally, and fi x the motor.Tilt drive gear trainLocation of mark on the RackT-Rack-A PinLocation of notched section Tilt Gear 7Location of notched section Sensor Tilt Sensor Bkt4KVT-50DVDRY/512/522DVD/522DVDY/532DVD/53

11、2DVDM3. Insertion of slider This subsection describes cautions for inserting the slider (slide section inside of the unit) into the outer chassis. 1) On the rail at the left side of the slider, there is a part called a stabilizer that is used to minimize play in right and left sides.The slide is mad

12、e of resin. (Note that the rail is shown at the right side of the slider in the picture.) When inserting the slider, press the stabilizer towards the direction shown with a blue arrow and insert it into the groove on the rail.2) PCB holder is pushed out towards the downside of the picture due to the

13、 spring force and thus the chas-sis and photo refl ection sheet may be get caught by the holder during the assembly. Insert the slider while slightly lifting up the holder with a pair of tweezers or any other similar device.3) Insert the gear after confirming that the both of D shaft gears at the ri

14、ght and left sides of the slider are aliened with the tip of the right and left racks on the chassis.(Otherwise the slider will be inserted sidelong.CAUTIONS IN ASSEMBLING PANEL DRIVE MECHANISM (A10-5171)(Slider -Slide section inside of the unit)StabilizerPCB HolderThese portionstend to be getcaught

15、.Hold and lift up the holderwith a pair of tweezers.Push the opposite side ofthe PCB holder towardsthe downside of the picture and lift up the portionsthat may get caught. D shaft gearD shaft gearRack gearRack gear5KVT-50DVDRY/512/522DVD/522DVDY/532DVD/532DVDMIn assembling the Traverse UD arm, Drive

16、 cam assembly, Drive gear 5 and Drive gear 4C, align register marks on these components. GEAR POSITION IN A DVD MECHANISMBLOCK DIAGRAMDrive gear 5Drive cam assemblyDo not forcibly press gears to engage their teethbut freely let the gears fall under their own weight and engage their teeth.Traverse UD

17、 armDrive gear 4CInscriptions (register marks) on gears Align 6 marks as shown in the figureDVS-8000V BLOCK DIAGRAM (X37-1100)SPINDLEMOTORDISCOPTICAL PICKUPSTEPPING2 PHASECN130PIN28PINCN3MOTOR &DRIVERACTUATORMDC MOTORLO/EJPROCESSORFRONT-ENDIC1IC12IOPDETQ7,8OPTICAL DISCCONTROLLERRESET IC CN250PIN3.3V

18、 REGIC7D3.3VA3.3VA5VD5V1.5V REGIC91.5V VOLTAGE DETIC8toMAINTrAPCIC10Q1,2IC4IC3FLASH ROMEEPROMIC11HALLICHFM3.3VD7SW LOENDSW LOSTUNITU,V,W COILHALL BIASHALL SENSORDVD LD/CD LDVREFHIMON/VR DVD/VR CDPDIC I/V OUTFO+/-,TR+/-THERMISTERFO5,RO5P5VFO2,RO233H1H,H1L,HBA1,A2,A3P5VVHALFFGA5VD5VA3.3V73VHALFIOP(AD)

19、VHALF(1.65V)TRCRSTESEN,SCK,STDIFBAL,JLINE,ARF,NARFTSTSGFG,EXCNT1 SDA,SCLDRV.MUTE,LO.MTE,FADR0-17,TRDRV,PWM8,BMS,STEP A,STEP B NCE,NWE,NOE FTD0-728D5V A3.3V 1.5VD3.3V16.897849MHzNRSTD3.3VATAPI IFD5VP5VDISC DETON/OFFA5VLIM-SW4SEN,SCK,STDIVREF,ECRF,FE1,FE2A,B,C,D,E,F,93FE,AS,RFENV,RFDIFOOFTR,BDO,VREF22

20、1D3.3VD3.3V9DVDON/CDONTEMPDET(AD)2D3.3VHFMA3.3V2VRSPDRV,FODRV,LPC1,2VREFH4FO3,RO3FO4,RO4FO6,RO6BMS,MUTEHFM3.3VPDIC VCCHFMSW EJENDSTBY,SPIN,IN2-6A5VSW46KVT-50DVDRY/512/522DVD/522DVDY/532DVD/532DVDMBLOCK DIAGRAMJ1DC CN MOLEX 15ACN351AUDIOAVINDVS-8020VDVD MECHACN701WH UBSW801TV-BOX (E,M,X)CN351SAT I/FC

21、N353AVINVIDEOCN351CN354NAVIIC701(MAGNUM)BEFLASH ROMIC702CATIONi-Pod AUTHENTI-IC851J681IC602LPFUSB H/CIC801PROTECTIONOVER CURRENTIC804LPFIC601AUDIODACIC651LPFMUTE ISO-1SELMUTE1 BUFF1ISO-2 MUTE2 BUFF2ISO-3 MUTE3 BUFF3ISO-4ISO-5ISO-6ISO-7AUDIO BLOCKIN-6IN-5VIDEO BLOCKSELIN-4IN-3IN-2IN-16dB6dB6dBSWSWSWI

22、C358iPodCN352F-ZBSYNC-TIPCLAMPSYNCRGBSWIC361SDRAM 128MHzIC703,704D OUTISOAMPSELISOAMPINPUTSEL &VOLOUTMUTEFM/AM(S07 F/E)A1RDSIC355E2PROMX86-403IC351PWICMUTEANTFM/AMW351CN351MUTECN351MUTEAVOUTu-COMIC9ILLUMIVARIABLEVMUTEMOTORIC5DRIVERX35-496toCN3MOTORDRIVERIC6X15-110 B/2toCN4BU14VBU5VA8.5V SIR SW14VBU3

23、.3VBE A5V T P+5VA5VSW+14VDCDC DCDCSW5V D3.3VD5VV5VMECHAD1.8V USB3.3VUSB1.8VTC3.3VUSB5VSW3.3V V3.3V P5V7.5VX15-110 A/2toCN551X15-110toCN101REMOIC55111 LEDS10 KEYSPANEL MECHAtoCN104IC304AMPMEMORYIC302SERIALX35-496 B/2toCN302to LCD PANELX35-496 A/2toCN502CN503to TOUCH PANELCN501V ILLUMIFUNCTIONSCREENOP

24、EN/CLOSEIC1INVERTERSRC NAVIKEY(BACK LIGHT)to LCDCN1(SW5V)P ON+5V SW+14VTC3.3V MECHA3.3V(SW3.3V)T P+5VDCDCIC101+12.5VD2.5V -12V5V for IC1 D2.5V-6VIC357DETSLIDECHILTCONTROLDECODERVIDEOu-COMUSB5VBU DETACC DETREVERSEPARKINGP CONANT CONW REMOILLUMILINE MUTED3.3V26D+: USB3.3VD-: USB1.8VUSB5VBE A5VV5VAVSW

25、SDAAVSW SCLAVSW PDNu-COMA5V V5V SW3.3VBU14VRSTSDATAMREQJUDGESREQCLKMDATAu-COMV5VRXTXu-COMREMOVIDEO DRIVERSV5VV5VRGB SW1TUNERCDMDCDCHAUXMUXC VOL INMUXB AC IN 3AC IN 1AC IN 2AC IN 0PAOUTLDOUTAOUT MUTEMUTECMUTE2u-COMEVOL SCLMUTE0MUTE1EVOL SDADC DETA8.35VTUN IFCAM+BTUN SMETTUN SDATUN SCLR AFS HR NOISEu-

26、COMA8.35V SW5VSW5Vu-COMR CLKR DATAR QUALWININu-COMPW STBYPW MUTEBEEPPRE FRREPREVOUTAVAV AOUTSW5V321NT PALCOMPOSITSOGNT PALVMUTE from u-COMBE VMUTE from BE (MAGNUM)MECHA7.5V447RESETLED REJECTSW5VSILED GREMOKEY2GNDMAGNUMSIGNALCOMPOSITRGBAUDIOu-COMu-COMP ON SIR PONu-COMP ONu-COMP STARTP GOODP PWMMCNTP

27、OND5VP5VVOL-AUTOFMREWAMVOL+ATTEJECTRESETFWSW3.3VSW3.3VBU14V10TC WAITTC RSTTC SCLTC SDANT PALSOGCOMPOSITVMUTEHSYVSYTC3.3V4D2.5VTC3.3VP ON+5VDEHSTHRSTHLCKVL/RDEVSTVRSTVLVCOMCPH1VCOMOUTVCOMDC-6VTC3.3V+18VP ON+5VYDATAY0X0X1XDATAT P+5VLED GLED BLED RKEY1OPEN/CLOSEINV PWMINV SWPWMENABLE5V for IC1SW14Vu-CO

28、MDISC DETD3.3VV3.3V D1.8VTXRXCONMAGNUMRSTBU5VBU3.3VSW5VMECHA3.3V12SIR SW14V(X15-) (A/2)(X35-) (B/2)(X35-) (A/2)(X15-) (B/2)7KVT-50DVDRY/512/522DVD/522DVDY/532DVD/532DVDM VIDEO CONTROL UNIT (X15-110x-xx)Ref. No. Application / Function Operation / Condition / CompatibilityIC1 3-terminal regulator 9V5V

29、 regulatorIC2 3-terminal regulator For AUDIO8.5VIC3 DC/DC converter IC MECHA7.5V/D5V controlIC4 DC/DC converter IC USB5V/D3.3V controlIC5 Motor driver SlideIC6 Motor driver TiltIC7 3.3V regulator TC3.3VIC8 Buffer for remote controller Remote controller signal waveform shaping IC9 System -com IC Syst

30、em controlIC10 E2PROM For saving the settingsIC12 Voltage detector -com reset voltage (3.5V) monitoringIC13 OR For VMUTEIC351 POWER IC Power amplifi er for speaker outputIC354 VIDEO ISO AMP IPod video signalIC355 RDS decoder IC For RDS signal processing and demodulationIC356 AND*4 KAB IF 3.3V5V LEVE

31、L SHIFTIC357 Electronic volume IC AUDIO -VOL_CTL/SIG_SELECTIC358 AV SWITCH 7-input/3-output AUDIO and 6-input/3-output VIDEOIC361 VIDEO SELECTOR DVD_BE and NAVI_RGB SELECTIC401,402 INVERTER TV_SDATA OUT BUFFERIC551 IR remote controller photoreceptor Remote controller signal detectionIC601 VIDEO AMP

32、DVD_BE COMPOSITE SIG LPF/BUFFERIC602 VIDEO AMP DVD_BE RGB SIG LPF/BUFFERIC651 AUDIO DAC DVD_BE AUDIO D/A CONVERTERIC652 OP-AMP*2 DVD_BE AUDIO LPFIC691 INVERTER SPDIF OUT BUFFERIC692 AND For DVD_BE IC RESET_SIGIC701 MPEG DECODER DVD/USB MPEG DECODERIC702 64M FLASH FLASH MEMORY (MP 4Z4) for MPEG DECOD

33、ERIC703,704 128M SDRAM SDRAM for MPEG DECODERIC705 Regulator 3.3V1.8V regulator for MPEG DECODERIC801 USB HOST CONTROLLER 2PORT (External/GARMIN navigation) USB HOST CONTROLLERIC804Fixed Current LimitPower Distribution SwitchLarge current distribution switch for USBIC805 Regulator 5V3.3V regulator f

34、or USBIC806 Regulator SW3.3V1.8V regulator for USBIC807 D-TYPE LATCH X 8 Address latch for USB H/CIC851 COPROCESSOR IPOD AUTHENTICATIONQ1 SW REVERSE detectionQ2 SW PARKING detectionCOMPONENTS DESCRIPTION8KVT-50DVDRY/512/522DVD/522DVDY/532DVD/532DVDMRef. No. Application / Function Operation / Conditi

35、on / CompatibilityQ3 SW ILLUMI detectionQ4-7 SW PCON outputQ8,9 SW ANT_CON outputQ11 SW ACC detectionQ12-20 SW Over voltage/Voltage reduction/BU_DETQ21-25 SW BU5V circuitQ26-28 SW BU3.3V circuitQ29,30 SW T_P+5V circuitQ35-37 SW P_ON SW+14V controlQ38 SW P_ON SW+14V ON/OFFQ39 SW A8.5V circuitQ40-42 S

36、W A5V circuitQ43,44 SW BE_A5V circuitQ45 SW KAB SW+14V controlQ46 SW KAB SW+14V ON/OFFQ51 SW DC/DC protection controlQ52 SW Z2-MECHA power supply voltage (7.5V/5V) switchingQ53 SW DC/DC protection controlQ54 SW DC/DC SW FET (MECHA7.5V)Q55 SW DC/DC SW FET (D5V)Q56,57 SW DC/DC protection controlQ58 SW

37、 DC/DC SW FET (USB5V)Q59 SW DC/DC SW FET (D3.3V)Q60,61 SW VILL_R power supplyQ62,63 SW VILL_G power supplyQ64,65 SW VILL_B power supplyQ66,67 SW LED_R power supplyQ68,69 SW LED_G power supplyQ71,72 SW A8.5V circuitQ73 SW DETMUTE circuit (Trigger BU_DET), DETMUTE detectionQ74 SW DETMUTE circuit (Trig

38、ger RESET), DETMUTE detectionQ75 SW DETMUTE circuit (Trigger RESET), TV_RST detectionQ76 BUFFER HSY (3.3V5V)Q77 SW DC/DC PSTARTQ78 BUFFER AVSW_SDA (5V3.3V)Q79 BUFFER AVSW_SCL (5V3.3V)Q80 SW SIQ82 SW KAB detectionQ350 SW KAB_RX error connection protectionQ351-353 SW Pre-Out_Mute circuit (FRONT)Q354-3

39、56 SW Pre-Out_Mute circuit (REAR)COMPONENTS DESCRIPTION9KVT-50DVDRY/512/522DVD/522DVDY/532DVD/532DVDMRef. No. Application / Function Operation / Condition / CompatibilityQ357-360 SW Pre-Out_Mute circuit (AVOUT)Q361,362 SW ON when AM (TUNNER8.5V)Q370 SW KAB_RX error connection protectionQ371-373 SW T

40、uner_Mute circuit (during ejection) Q451 BUFFER HDQ452 SW NT_PALQ453 BUFFER DVD_VQ454,455 SW For KAB_TX controlQ651 SW DVD AUDIO MUTE LCHQ652 SW DVD AUDIO MUTE RCHQ653 SW DVD AUDIO MUTE controlQ654,655 SW DVD AUDIO neutral point circuitQ681 BUFFER SPDIF OUT BUFFERQ683 SW DVD AUDIO MUTE control VIDEO

41、 UNIT (X35-4960-10)Ref. No. Application / Function Operation / Condition / CompatibilityIC1 Inverter IC Power supply for CCFLIC101 Power supply IC for LCD Support 3 output (18V/12.5V/-12V)IC102 Multi-vibrator IC For LCD power supply rising timing adjustmentIC103 Logic IC For LCD power supply rising

42、timing adjustmentIC200 Op amp IC Buffer for VCOM signalIC300 Power supply IC 2.5V outputIC302 Serial fl ush F/W storage for video decoder ICIC304 Video decoder IC For decoding video signalQ1 For switching Bright PWM signal SWQ2,3 Dual FET For DC/AC conversionQ4 Register integrated transistor Externa

43、l synchronization: 121kHz/Free run: 56kHzON (On when it is 56kHz)Q5 Power supply transistor For inverter IC power supply (5V)Q101,102 Power supply transistor For generating -6V from -12V (-12V-6V) Q200,202 Buffer transistor For VCOM signal level conversionQ203 Integrated transistor For VCOM signal l

44、evel conversionQ501 Register integrated transistor For touch panel XY coordinate import switchingQ502,503 Integrated Register integrated transistor For touch panel signal DVD UNIT (X37-1100-03)Ref. No. Application / Function Operation / Condition / CompatibilityIC1 RF signal processing IC RF signal

45、processingIC3 FLASH ROM Maintain F/W for optical DISC control ICCOMPONENTS DESCRIPTION10KVT-50DVDRY/512/522DVD/522DVDY/532DVD/532DVDMRef. No. Application / Function Operation / Condition / CompatibilityIC4 Optical disc control IC in -com Optical DISC general control / ATAPI interfaceIC5 Voltage dete

46、ction IC For system resetting of optical DISC control ICIC7 3.3V power supply 5V3.3VIC8 Voltage detection IC For 1.5V power supply IC voltage monitorIC9 1.5V power supply 5V1.5VIC10 Driver IC Focus coil, Tracking coil, Spindle motor, Sled motor and Lo/Ej motor driveIC11 EEPROM Maintain data for opti

47、cal DISC control ICIC12 OP-AMP for Iop measurement For IOP measurementQ1 Register integrated transistor SL. MUTE controlQ2 Register integrated transistor For FG signalQ3 Register integrated transistor LO.MUTE controlQ4 Register integrated transistor DRMU controlQ5 MOS-FET Laser diode ON/OFF control

48、for DVDQ6 MOS-FET Laser diode ON/OFF control for CDQ12 Transistor for APC Laser diode brightness control for CDQ13 Transistor for APC Laser diode brightness control for DVDQ14 MOS-FET For IOP measurementQ15 Register integrated transistor HFM ON/OFF controlQ18,19 Register integrated transistor 3.3V power supply IC ON timing controlCOMPONENTS DESCRIPTION