Kenwood-KDVC-820-Service-Manual电路原理图.pdf
© 2002-4 PRINTED IN JAPANB51-7953-00 (N)339410 DISC DVD / CD CHANGERKDV-C810/C820/C830/C840/C860SERVICE MANUALMAGAZINE PACK ASSY(J19-5211-08)REMOTE CONTROL ASSYRC-DV300(A70-2038-08)CORD WITH PLUG(E30-6124-05)DC CORD(E30-6148-08)VIDEO CORD(E30-6149-08)BRACKET(J19-5209-08)BRACKET(J19-5210-08)SCREW SET(N99-1732-08)REMOTE CONTROL SENSOR ASSY(T95-0235-05)MOUNTING PARTS SET(W06-0745-08)PROTECTION SHEET(H21-1146-08)PANEL ASSYA64-2965-08 : K type, A64-2966-08 : E typeA64-2967-08 : M type, A64-2968-08 : X typeA64-2969-08 : C type Illustration is KDV-C810About the handling after repair (for transportation) Please after repair for the units you must be internalized elevator mechanism of most below position (for magazine pack eject position)and always attach CAUTION CARD and STEPPED SCREW (for transportation). In order to make an elevator mechanism downed. 2BLOCK DIAGRAM50MHzX25016MHzX1518.38MHzX301ACCACC DETVCC5VCCVCC1VBBV5 BU5V11.5VVIDEO DECODERDOLBY AC3/VCD,SVCD,MPEG AUDIO/AUDIO CD,MP3 DECODERDTS AUDIO DECODINGX551 27MHzBU2 to MAIN UNITACC to MAIN UNITVCC 2.8 D +5VVCC5 to MAIN UNITVCC 5.0VCC 3.3VCC 3.3DVCC 3.6CONTROLACC 5VACCBUL052L053ACC 5VV +5VA +9VBU1BU to MAIN UNITL9145L BUS22.75MHzX201ATAPI I/FTR COILFO COILEFDABPDCMMMIC1SPINDLEMOTORDRIVERMRF AMP/SERVOCONTROLIC101Q102,103LD DRIVERIC102FOCUS, FEEDTRACKINGDRIVERIC2021M DRAMPROCESSOR& DATACD/DVD SERVOIC201DECODERDVD ROMATAP I/F &IC250IC2514M DRAMIC105PULSE COUNTFEED GEARIC152,153RESET ICIC305DRIVERLOADINGCONTROLLERSERVOPROCESSORIC151IC301CONTROLLERPROCESSORMECHANISMIC306RESET ICDRIVERELEVATORIC304MOTORMOTORMICRO-MICRO-Q304IC3075VQ3015VIC303(SW301)EJECT SWDVDPROCESSORIC501IC514IC511DRAMMEMORYFLASHEEPROMIC591VIDEOIC571VIDEO182IC561AUDIO D/ACONVERTERIC101,111LINE AMPIC581BUFFERIC551OPTICALPARKINGVIDEOAUDIO(SW901)SETTING SWPAL/NTSCENCODER DRIVERIC181,2.8VIC0815VQ004Q0035VQ0023.3VACCQ072BACK UPIC0715V5VIC062 IC0619VINOUTPUTOUT L/ROUT F/RCONTROLHEADtoUNITDIN13PREMOTEFEED MOTOR(VM2)SPINDLE MOTOR(VM1)INSIDE SW(SW4)FEED SENSOR(PHT2)LOADING MOTOR(VM3)CLAMPSW(SW302)LOAD OUTSW(SW1)IN SW(SW5)MAGAZINE DISCSENSOR(D1)(SW2)UP SW(SW3)DOWN(VM4)ELEVATORMOTOR SENSORPOSITION(PHT1)SW(VPU1)PICKUP ASSYMAIN UNIT MPEG UNITMECHANISM ASSYKDV-C810/C820/C830/C840/C8603KDV-C810/C820/C830/C840/C860COMPONENTS DESCRIPTIONRef.No. Component Name Application/Function Operation/Condition/CompatibilitySW1 S68-0858-08 LOAD OUT SW Disc tray return (magazine pack side) detect switchSW2 S68-0858-08 UP SW Elevator unit topmost part (disc 1) detect switchSW3 S68-0858-08 DOWN SW Elevator unit lowermost part (magazine eject position) detect switchSW4 S68-0878-08 INSIDE SW Pickup unit inside position detect switchSW5 S68-0858-08 MAGAZINE IN SW Magazine pack in detection switchSW302 S74-0820-08 CLAMP SW Disc clamp operation end switchVM1 - SPINDLE MOTOR Disc rotation drive motorVM2 T42-1079-08 FEED MOTOR Pickup unit drive motor ( Feed motor)VM3 T42-1080-08 LOADING MOTOR Disc tray loading / unloading drive motorVM4 T42-1078-08 ELEVATOR MOTOR Elevator mechanism part drive motorVPU1 T25-0227-08 LASER PICKUP 2 Laser pickup unitPHT1 T95-0256-08 POSITION SENSOR Magazine tray position detect photointerruptorPHT2 - FEED SENSOR Feed motor rotation detect photointerruptorLED1 AN1102W-3 LED LED for disc detectionIC1 BA6849FP-Y SPINDLE MOTOR DRIVER Spindle motor driverMAIN UNITRef.No. Component Name Application/Function Operation/Condition/CompatibilityIC101 TA1293F RF AMP/SERVO CONTROL RF amplifier / Servo control ICIC102 BA5918FP-Y FOCUS/TRACKING/FEED DRIVER Focus/ Tracking coil, Feed motor driverIC105 TC75S51F PULSE COUNT Feed motor rotation detection comparatorIC151 HD64F3039TEBL1 MICROPROCESSOR (SERVO CONTROLLER) Servo IC control microprocessorIC103 RN5RG33AA +3.3V AVR 3.3V regulator ICIC104 MMDF2P01HD +5.0V AVR 5.0V regulator ICIC152 TC7ST08FU BUFFER Reset signal buffer ICIC153 IC-PST597EN RESET REGULATOR Reset signal regulator ICIC154 TC7WU04FU BUFFER ATAPI interface buffer ICIC108 LM50CIM3 TEMP DETECTOR Temperature detection thermistorIC201 TC9453AF CD/DVD SERVO & DATA PROCESSOR Digital-servo control ICIC202 LH61665AS-60E2 DATA BUFFER DRAM Data buffer DRAMIC250 TC9469BF ATAPI I/F & DVD ROM DECODER ATAPI interface & DVD decoderIC251 MSM514265C50TS DATA BUFFER DRAM Data buffer DRAMIC301 UPD78F0034AGK9 MICROPROCESSOR (MECHANISM CONTROL) Mechanism control microprocessorIC302 S-24C04BFJ EEPROM Disc information data memoryIC303 L78M05TL +5.0V AVR 5.0V regulator ICIC304 BA6289F ELEVATOR MOTOR DRIVER Elevator motor driverIC305 BA6289F LOADING MOTOR DRIVER Loading motor driverIC306 S-80732AN-DW RESET IC Reset ICIC307 S81250HG-RD +5.0V AVR 5V power supply regulator IC for MicroprocessorIC308 S-80732AN-DW BATTERY DETECTOR Battery voltage detection ICQ101 2SB1424-R CURRENT DRIVE 3.3V current drive transistorQ102 2SA1338-5 DVD LD DRIVE Laser diode power supply for DVDQ103 2SA1338-5 CD LD DRIVE Laser diode power supply for CDQ151 DTA114YUA SW Flash rewriting permission changeover switchQ152 2SA1338-5 DVD LD DRIVE DVD laser high frequency superposition circuit on-switchMECHANISM (SWITCH / SENSOR / MOTOR)4KDV-C810/C820/C830/C840/C860Ref.No. Component Name Application/Function Operation/Condition/CompatibilityQ301 2SB1424-R AVR FOR MECHANISM Mechanism power supplyQ302 DTC114YK POWER CONTROL SW Mechanism power supply control switchQ303 DTA114YK ACC DETECTOR CONTROL SW ACC detection transistor (At the time of ACC detection : H)Q304 2SC2412K-R ACC DETECTOR ACC detection transistor (At the time of ACC detection : ON)Q305 DTC124EK RESET SW FOR MECHANISM Mechanism control microcomputer (IC301) reset switchQ307 2SC2412K-R BATTERY DETECTOR Battery detection IC (It turns on at the time of 13 pin connection)SW301 S70-0900-08 EJECT SW Magazine eject switchMPEG UNITRef.No. Component Name Application/Function Operation/Condition/CompatibilityIC001 LTC1628CG D/D CONVERTER 3.3V / 5.0 V D/D converterIC061 PQ09DZ1U +9.0V AVR 9.0V regulator ICIC062 S81250HG-RD +5.0V AVR 5.0V regulator ICIC071 S81250HG-RD +5.0V AVR 5.0V regulator ICIC081 LM1117IMPX-ADJ +2.8V AVR 2.8V regulator ICIC101 NJM4565M-B AUDIO SIGNAL BPF Audio signal BPF filterIC111 NJM4565M-B AUDIO SIGNAL BPF Audio signal BPF filterIC171 NC7S04P5 INVERTER (MUTING) Muting signal inverterIC181 TK15405AM VIDEO SIGNAL DRIVER Video signal ampIC182 TK15405AM VIDEO SIGNAL DRIVER Video signal ampIC501 ES4428S DVD PROCESSOR MPEG 2 video, audio processing DSPIC511 HY57V641620HGT DRAM MPEG 2 data memoryIC514 MX29F800TTC-90 FLASH MEMORY System program memoryIC515 TC7S32FU OR GATE Signal selector ICIC516 SN74AHC174PW-R SELECTOR Input selector ICIC551 TC7WU04FU 27MHz OSC Crystal oscillator buffer (27MHz)IC561 PCM1716E AUDIO SIGNAL D/A CONVERTER Audio signal D/A converterIC571 AK8812 VIDEO ENCODER Video signal D/A converterIC581 NC7ST08P5 DIGITAL OUT BUFFER Digital out signal bufferIC591 HN58X2408FPIZ BACKUP MEMORY Backup memoryQ001 2SA1622-6 SW 3.3V and 5.0V power supply ControlQ002 FDS8936A +3.3V DRIVER 3.3V power supply driveQ003 FDS8936A +5.0V DRIVER 5.0V power supply driveQ004 DTA113ZUA +5.0V CONTROL SW 5.0V power supply controlQ051 DTC144EUA CHANGER CONTROL SW Changer control switchQ052 DTA113ZUA MUTING CONTROL SW Muting signal ON/OFFQ071 DTA114YUA SW Backup (BU) power supply ON/OFFQ072 DTC144EUA/UMC2N SW Control of Q71DTC323TU MUTING Audio signal muting transistor.Q171 DTA113ZUA MUTING CONTROL SW Muting transistor control (for Q111,161)Q172 DTA113ZUA MUTING CONTROL SW Muting transistor control ( for Q101,151)Q181 DTC144EUA PARKING SIGNAL DETECTOR Parking brake signal control (Parking H)Q182 2SB709A (R) VIDEO SIGNAL BUFFER Video signal bufferSW901 S62-0868-08 PAL/NTSC SETTING SW PAL/NTSC change-over switch (PAL : L / NTSC : H)CT551 C05-0520-08 27MHz REF ADJ Reference 27MHz adjustment trimmerQ101,111,151,161COMPONENTS DESCRIPTION5KDV-C810/C820/C830/C840/C860MICROCOMPUTERS TERMINAL DESCRIPTIONPin No. Pin Name I/O Purpose / Description Processing Operation1 /RST0 O ATAPI I/F controller / DVD ROM decoder /reset output terminal Reset terminal 104PIN of IC250 (Active L)2 /RST1 O CD/DVD Servo / Data processor reset output terminal Reset terminal 48PIN of IC201 (Active L)3 SPSTBY O Spindle motor driver power save output terminal VM1 (spindle motor) control7 MD2 I Operation mode change input terminal Connected to +5V9 FLCNT O Flash memory write-in circuit ON output terminal Control of Q15110 SB O Spindle motor short brake output terminal VM1 (spindle motor) control12 VSS - GND Connected to GND14-20 D0-D7 I/O CPU data bus terminal IC201 and IC250 control data bus21 VCC - Power supply input terminal Connected to +5V22-28 HA0-HA6 O CPU address bus terminal IC201 and IC250 address bus30 VSS - GND Connected to GND31 SWA I Loading mechanism SWA input terminal Connected to +5V32 SWB I Loading mechanism SWB input terminal Connected to +5V33 LOEJKEY I Loading/eject key input terminal Connected to +5V34 INSIDE I Pickup inside detection (SW4) input terminal Active L37 CSEL I IDE cable selection input terminal CSEL (7PIN) control signal of IC25038 SWC I Loading mechanism SWC input terminal Connected to +5V40 /SRVDPCS O Servo / Data processor selection output terminal SDCS (44PIN) selection control signal of IC20141 /ATACS O ATAPI I/F controller / DVD ROM decoder selection output terminal ATACS (98PIN) selection control signal of IC25043 PCS O VRCK frequency demultiplier output terminal (RF AMP ) PSC (50PIN) control signal of IC10144 MD0 I Operation mode change input terminal Connected to +5V45 MD1 I Operation mode change input terminal Connected to GND47 /STBY I CPU standby input terminal Connected to +5V48 /RES I CPU reset input terminal System reset input of IC151 (ActiveL)49 NMI I GND Connected to GND50 VSS - GND Connected to GND51 EXTAL I Crystal input terminal X151 16MHz52 XTAL I Crystal input terminal X151 16MHz53 VCC - Power supply input terminal Connected to +5V55 /RD O Lead control terminal The bus control output of IC201 and IC25056 /WR O Write control terminal The bus control output of IC201 and IC25057 FEW I Flash memory rewriting permission input -58 AVSS - GND Connected to GND59 FE I Focus error input terminal -60 LVL I Sub beam signal input terminal -61-64 TEST0-TEST3 I Test mode input terminal Not used for after service65 TESTCNT I Temperature sensor input terminal -67 AVCC - Power supply input terminal Connected to +5V68 /ATAINT I ATAPI I/F controller / DVD ROM decoder request signal input terminal Request signal input from 102PIN of IC250IC151 (MAIN UNIT : SERVO CONTROL)6KDV-C810/C820/C830/C840/C860MICROCOMPUTERS TERMINAL DESCRIPTIONPin No. Pin Name I/O Purpose / Description Processing Operation69 /SRVDPINT I CD/DVD Servo / data processor request signal input terminal Request signal input from 45PIN of IC20170 TXD O Serial data transformer terminal (for debugging) Not used for after service71 RXD I Serial data receive terminal (for debugging) Not used for after service73 ENCODER I Encoder pulse input terminal Feed sensor pulse input terminal (PHT2)74 /PWRDWN1 O Analog 5V Power down control output terminal Control of the power down of IC 104 (Active H)75 /PWRDWN2 O Digital 5V Power down control output terminal Control of the power down of IC 104 (Active H)76 STBY O BTL driver muting output terminal Control of the driver of IC 102 (Active H)79 RFMVON O Laser high frequency superposition circuit control output terminal Control of the driver-on Q1524,5,6,8,11,29,39,42,46,54, NC - (N.C) open66,72,77,78,8035,36 NC - (N.C) connected to +5VIC301(MAIN UNIT : MECHANISM CONTROL)Pin No. Pin Name I/O Description Processing OperationSTOP LOAD UNLOAD BRAKE1 LOAD+ O Loading motor (+) output terminal LOAD+ L H L H2 LOAD- O Loading motor (-) output terminal LOAD- L H H HLOAD : DISC CLAMP, UNLOAD : Magazine pack returnSTOP LOAD UNLOAD BRAKE3 ELV+ O Elevator motor (+) output terminal ELV+ L H L H4 ELV- O Elevator motor (-) output terminal ELV- L L H HUP : DISC101, DOWN : DISC1105 POWER O Power supply ON output terminal for mechanisms Control of Q302 (Active H)6 MPEG+B O MPEG 2 power supply ON output terminal Control of the power supply Q071 (Active H)7 CD+B O DVD changer mode output terminal Control of the power supply IC 061 (Active H)8 SCL O Clock output terminal for EEPROM IC302 (6PIN) EEPROM Clock output9 VSS0 - GND Connected to GND10 VDD0 - Power supply input terminal Connected to +5V11 SDA O Data output terminal for EEPROM IC302 (5PIN) EEPROM Data output15 DATAH I DATAH Kenwood bus16 DATAC O DATAC Kenwood bus17 HCLK I/O HCLK Kenwood bus18 MPDAI I Data input terminal from DVD processor Data input terminal from 162PIN of IC50119 MPDAO O Data output terminal for DVD processor Data output terminal for 168PIN of IC50120 MPCLK O Clock output terminal for DVD processor Clock output terminal for 169PIN of IC50123 MPREQ O Request output terminal for DVD processor Request output terminal for 166PIN of IC50124 VDD1 - Power supply input terminal Connected to +5V7KDV-C810/C820/C830/C840/C860Pin No. Pin Name I/O Description Processing Operation25 AVSS - A/D grand terminal Connected to GND26 UPSW I Elevator up switch input terminal Elevator up switch (SW2) input terminal (Active L)27 LOWSW I Elevator down switch input terminal Elevator down switch (SW3) input terminal (Active L)28 LOADSW I Disc tray loading switch input terminal Disc tray loading out switch (SW1) input terminal (Active L)29 CLAMPSW I Disc clamp switch input terminal Disc clamp switch (SW302) input terminal (Active L)30 BUDET I Battery connection detection input terminal Backup supply voltage detect input terminal (Active L)31 DISC.C I Elevator position detection sensor input terminal Position sensor (PHT1) input terminal33 DISCON I Disc detection input terminal Disc detection input terminal (Disc load : H)34 AVREF - Analog reference voltage Connected to +5V35 AVDD - Analog power supply input terminal Connected to +5V36 RESET I Reset input terminal System reset input terminal (Active L)39 IC (Vpp) - (N.C) connected to GND40 X2 I Crystal input terminal X301 8.38MHz41 X1 I Crystal input terminal X301 8.38MHz42 VSS1 - GND Connected to GND43 BATT I Battery voltage detection input terminal Battery low voltage detect input terminal44 CE I ACC input terminal ACC detect input terminal (Active H)45 EJECT I Magazine Eject switch input terminal Magazine Eject switch (SW301) input terminal (Active L)46 CHCON I CHCON Kenwood bus47 REMOCON I Remote control signal input terminal Remote control signal input48 REQH I REQH Kenwood bus49 REQC I REQC Kenwood bus50 5LMUTE O Muting signal output terminal for muting line (5pin) Mute line (5pin for DIN terminal) control (Active L)51 SMUTE O Muting signal output terminal for audio muting line Audio line muting for DIN 13pin line (Active H)52 RCAMUTE O Audio muting control output terminal for RCA pin line Audio line muting for RCA pin line (Active H)55 /MPRST O Reset output terminal for DVD processor System reset output for IC501,516,561,57156 NTPASW I PAL/NTSC setting switch (SW901) input terminal PAL : H, NTSC : L64 /MAGZSW I Magazine in
