Kenwood-KDCMP-822-Service-Manual电路原理图.pdf
CD mechanism extension cord : W05-0935-00CD mechanism operation description is not in this service manual.Please, refer to service manual X92-4030-0x (B51-7867-00).Mounting hardware assy(J21-9823-03)DC cord (ISO)(E30-4942-05) : KDC-M7024Remote controller assy(RC-505)(A70-2040-05) : KDC-MP822DC cord(E30-6106-05) : KDC-MP822Lever(D10-4674-04) x 2Plastic cabinet assy(A02-2731-03)Screw set(N99-1723-05) : KDC-MP822Screw set(N99-1734-05)Antenna adaptor(T90-0552-05) : KDC-M7024Size AA battery(Not supplied)Escutcheon(B07-3078-01)50 4WDIGITAL AUDIOCOMPACT50 4WDIGITAL AUDIOCOMPACTPanel assy(A64-2978-01): KDC-MP822Escutcheon(B07-3078-01)Panel assy(A64-2995-02): KDC-MP822Panel assy(A64-2986-01): KDC-M7024Panel assy(A64-3003-02): KDC-M7024Escutcheon(B07-3078-01)© 2003-2 PRINTED IN JAPANB53-0035-00 (N)3114CD RECEIVERKDC-M7024KDC-MP822SERVICE MANUAL3HOW TO THE PANEL MECHANISM ASSEMBLY1. Fixed the position of operation side(Fixed the horizontal position when the panel opened)q The mounting hardware (281) of operation side is rota-tion (A) into the stop position with close side.w As figure (B) line is just above and the gear (230) at-tached to pin.BARotary to the stop position281230This line attached just aboveFig. B(This figure from look at B arrow)C284702SWDEF702SW2842. The slider assembly insert to bottom chassisq The bracket for display panel (284) is leave down, in-sert to the chassis (702). (C)w The slider assembly insert to the chassis (702) afterthat shift (D) direction.e The bracket for display panel (284) is raised (E) direc-tion.r Keep the raising conditions, the slider assembly is shift(F) direction.(Note) Do not bend the knob of chassis detection switchwhen the slider assembly insert.KDC-M7024/MP822KDC-M7024/MP8223BLOCK DIAGRAMRESET SWKEY MATRIX KEY ILLROTARYENCODERLCD DRIVERIC2SW5VQ6PANELIC3REMOCONWITHLCD DRIVERIC1KEY MATRIXLCDBUFFERRDSDECODERBUFFERu-COMMPXE-VOL&ACC DETTEL MUTEB.U DETDRIVERMUTEPOWERICACCTEL MUTEBACK UPSP OUT (FL)RESETIC12IC2IC1IC4IC7Q102,103AM+BPRE MUTEPRE MUTEPRE MUTEPRE OUT(FRONT)PRE OUT(REAR)(NF)PRE OUTSP OUT (FR)SP OUT (RL)SP OUT (RR)EXT AMPDIMMER DIMMEREXT.AMP.CONANT-CON ANT CONP-CON P CONWIRED REMO/OPEL DISP I/FIC8Q59,60Q55,56Q57,58BU5VSW 5VSW 14VSERVOILL+BSW REGA8VQ1,2Q3Q4,5Q6-8Q9,34BU5VSW5VSW14VA8VSERVOCD5.0VIC14MOTORDRDRMOTORIC13EEPROMEEP5VQ501IC1Q23,24Q30Q29Q25,26Q32Q33Q11-14IC5Q104Q53KEYBU5VBU5V BU5V BU5VS-METERAUDIO OUTSERVO8VBU5VCD4.7VBACK UPFMAMCDQUALCHBU5V8VSW5V8V 8VSW5V8VSW5VBU5VBU5VBU5VSERVO(X16-214)(X16-219)SWITCH UNITDISPLAY UNITTUNERCDCHMECHAPANELTDF UNIT (X16-208)(X25-966)KDC-M7024/MP8224a71 SUB-CIRCUIT UNIT (X16-2080-10)Ref. No. Application/Function Operation/Condition/CompatibilityIC1 E2PROM For securitya71 SUB-CIRCUIT UNIT (X16-2140-10)Ref. No. Application/Function Operation/Condition/CompatibilityIC1 LCD driver KEY InputIC2 LCD driverIC3 Remote control sensorQ1 KEY scan start SW ON when the base goes “L”.Q5, D26 VLCD AVRQ6 Remote control sensor power supply SW ON when the base goes “L”.Q11 Dimmer control LCD back light control. OFF when the base goes “L”, ON when the base goes “H”.a71 SWITCH UNIT (X16-2190-10)Ref. No. Application/Function Operation/Condition/CompatibilityQ1 DSI (Disabled System Indicator) DSI blinks when the base goes “H/L”Q2 KEY illumination SW (GREEN) ON (KEY illumination green) when the base goes “H”Q3 KEY illumination SW (RED) ON (KEY illumination red) when the base goes “H”a71 ELECTRIC UNIT (X25-966x-xx)Ref. No. Application/Function Operation/Condition/CompatibilityIC1 System µ-comIC2 E-vol & N.C. & MPXIC3 Regulator IC for A8VIC4 Power ICIC5 Swiching regulator IC for CD5VIC7 Reset ICIC8 Logic IC for mutingIC12 RDS decoder ICIC13, 14 Motor driver IC for panel mechanismIC15 ROM IC For ROM correction.Q1, 2 B.U.5V AVR While BU is applied, BU5V AVR outputs +5V.Q3 SW5V When Q3base goes Lo, SW5V outputs +5V.Q4, 5 SW14V When Q5base goes Hi, SW14V outputs 14V.Q68 AUDIO 8V AVR When Q6base goes Hi, A8V AVR outputs 8.4V.Q9, 34 SERVO+B AVR When Q34base goes Hi, S+B AVR outputs 7.4V.Q10 SW for IC5 When Q10base gose Hi, Q10 is turned on.Q1114 ILL+B AVR When Q11base goes Hi, AVR outputs 10.5V.Q23, 24 P-ANT SW When Q23base goes Hi, P-ANT SW outputs 14V.Q25, 26 P-CON SW When Q26base goes Hi, P-CON SW outputs 14V.Q27, 28 P-CON protection Protect Q27 by turning on when P-CON output is grounded.Q29 Ex Amp control bufferQ30 Small lamp det SW When Q30base goes Hi, Q30 is turned on.Q32 BU det When Q32base gose Hi, Q32 is turned on.Q33 ACC det When Q33base gose Hi, Q33 is turned on.Q51, 52 Mute driver When a base gose Lo, mute driver is turned on.COMPONENTS DESCRIPTIONKDC-M7024/MP8225Ref. No. Application/Function Operation/Condition/CompatibilityQ53 Noise bufferQ54 E-vol mute SW When a base gose Hi, mute SW is turned on.Q5560 Pre-out mute SW When a base gose Hi, Pre-out is muted.Q63 E2P 5V SW When Q63base gose Lo, E2P 5V is out.Q102, 103 AM+B SW When Q102base gose Hi, AM+B is out.Q104 Composite signal buffer for RDSCOMPONENTS DESCRIPTIONMICROCOMPUTERS TERMINAL DESCRIPTIONa71 SYSTEM MICROCOMPUTER : UPD703030GC014 (X25-966 : IC1)Pin No. Pin Name I/O Module Purpose / Description Truth table Processing Operation1 PLL_DATA I/O Tuner Data output/input with F/E.2 AM+B I/O Power supply AM+B. AM operation : H3 (FM+B) O Power supply FM+B (S01 F/E only).FM operation : H,Last FM : H (With RDS, RBDS model)4 V_ILL PAN_E2P DATA I/O To panel V-ILL D/A converter (V-ILL, LCD), E2PROM data.5 V_ILL PAN_E2P CLK I/O To panel V-ILL D/A converter (V-ILL, LCD), E2PROM clock.6 EVDD -7 EVSS -8 AFS O Tuner Noise detection time constant switching. FM seek, AF search : L, Receiving : H, Auto 0 : L9 BEEP O Audio Beep output.10 REMO I Extra Remote control input (Panel, External display).11 P_MUTE O Audio Power IC MUTE output. Power OFF : L, All OFF : L, TEL mute : L12 (SVR) O Audio Power IC SVR discharge circuit control.Power OFF momentary power dropped: H (5 second) and then LCD CD mechanism data line.13 IC2_SDA I/O Audio IC2 data line.Extra ROM correction data line.CD CD mechanism clock line.14 IC2_CLK I/O Audio IC2 clock line.Extra ROM correction clock line.15 P_STBY O Audio Power IC STBY output. Power IC ON : H, Power IC OFF : L, All OFF : H16 P_CON I/O Extra Power control. Power ON : H, Power OFF : Hi-Z, All OFF : Hi-Z17 DIMMER_CONT O To panel Dimmer control (W-LED only).Dimmer : Pulse control,Frequency : 1kHz, Normally : H18 TEST - Connect to GND.19 NC O Extra NC (MP3 mechanism model). w Output : L20 MUTE O Audio Mute output. ON : OPEN, OFF : L21 PRE_MUTEL O Audio PREOUT (L ch) mute.M MUTE L is L : L (CD), Momentary powerdropped : L, 2 zone, NAVI interrupt : Fixed H22 PRE_MUTER O Audio PREOUT (R ch) mute.M MUTE R is L : L (CD), Momentary powerdropped : L, 2 zone, NAVI interrupt : Fixed HKDC-M7024/MP8226Pin No. Pin Name I/O Module Purpose / Description Truth table Processing Operation23 BU_DET I Extra Momentary power dropped detection.Backup : L,No backup, momentary power dropped : H24 ACC_DET I Extra ACC detection. With ACC : L, Without ACC : H25 SW5V I/O Power supply 5V power supply. ON : L, OFF : Hi-Z26EXT_AMP_CONT O Extra External amplifier control. Refer to external amplifier control.NC O NC (Without EXT_AMP_CONT model) Output : L27 DIMMER I Extra Small lamp detection. ON : L, OFF : H28 ANT_CON O Extra Antenna control. wTuner ON : H, Other source With RDS last FM: H, Other source with RDBS TI ON last FM : H29 P_ON I/O Power supplySW 14V, SW 5V control, AD reference Power ON : H, Power OFF : Hi-Zvoltage control output.30 ILL_ON I/O Power supply FL, illumination output. ON : H, OFF : Hi-Z31 RESET -32 XT1 - Sub clock. 32.768kHz33 XT2 - Sub clock. 32.768kHz34 REGC - Connect to 1µF capacitor.35 X2 - Main clock. 20MHz36 X1 - Main clock. 20MHz37 VSS -38 VDD -39 CLKOUT -40 LX_REQ_M O LX Communication request to external slave. Request : L41 LX_MUTE I LX Mute request from external slave. Mute ON : H42 LX_CON O LX External slave select. ON : H, OFF : L43 LX_RST O LX Reset output to external slave µ-com.Normally : L, After system reset : H (400msor more) and then LCD source : H, Except CD source : L,44 CD_MECHA+B I/O Power supply DC 5.0V output. ON : Fast 50ms than M_STOP,OFF : Slow 50ms than M_STOP45 TYPE0 I Extra Destination select. w46 TYPE1 I Extra Destination select. w47 IC2_TYPE0 I Extra IC2 destination. w48 IC2_TYPE1 I Extra IC2 destination. w49 NC O NC Output : L50 E2P5V I/O Power supply E2PROM, DA converter power supply control. ON : L, OFF : Hi-Z51 DSI I/O To panel DSI control. ON : L, OFF : Hi-Z52 L_CE O To panel Chip enable output to LCD driver.53 L_INH O To panel Inhibit signal output to LCD driver. Normally : H, Reset, momentary power dropped : L54 VOL A I To panel VOL input.55 BVDD -56 BVSS -57 VOL B I To panel VOL input.58 M_RST O CD Reset output to CD mechanism. Normally : H, Reset : L (Per mechanism control)59 M_STOP O CD Stop request to CD mechanism. Stop : L, CD : H60 CD_SW3 I CD DC down switch detection. Chucking : H61 LO/EJ I/O CD CD mechanism loading/eject switch. Stop, brake : Hi-Z, Loading : L, Eject : H62 MOSW O CD CD mechanism motor driver switch. Loading, eject, brake : HMICROCOMPUTERS TERMINAL DESCRIPTIONKDC-M7024/MP8227Pin No. Pin Name I/O Module Purpose / Description Truth table Processing Operation63 FPM MOTOR B O P-mecha FPM mechanism (Slider) control. e64 FPM MOTOR F O P-mecha FPM mechanism (Slider) control. e65 FPM MOTOR O O P-mecha FPM mechanism (Angle) control. e66 FPM MOTOR C O P-mecha FPM mechanism (Angle) control. e67O_DATA I/O Extra External display data input/output. External displayNC O NC (Without external display model) Output : L68O_CLK I/O Extra External display clock input/output. External displayNC O NC (Without external display model) Output : L69O_CE I/O Extra External display chip enable input/output. External displayNC O NC (Without external display model) Output : L70 M_MUTER I CD Mute request form CD mechanism. (R ch). ON : L (CD)71 AVDD -72 AVSS -73 AVREF - Connect to P_ON (29 pin).74 M_MUTEL I CD Mute request form CD mechanism. (L ch). ON : L (CD)75 PAN_DET I To panel Panel E2PROM detection. With : L, Without : HPHONE I Extra PHONE detection.TEL mute : 1V or less, NAVI mute : 2.5V or more,76 J type 1V or less, 2.5V or more : NAVI muteNC I NC (Without TEL-MUTE model) Connect to GND.77 FPM SW4 I P-mechaFPM mechanism position detection,e3.75V or more : No mechanism,mechanism detection. 1.25V or more : H, Less than 1.25V : L78 FPM SW1 I P-mecha FPM mechanism position detection. e79 FPM SW2 I P-mecha FPM mechanism position detection. e80 FPM SW3 I P-mecha FPM mechanism position detection. e81 FPM PHOUT I P-mecha FPM mechanism position detection. e H : 2.2V or more82 S_METER I Tuner S-meter detection. Refer to S03 F/E control.83 NOISE I Tuner FM noise detection. Refer to S03 F/E control.84 IFC_OUT I Tuner F/E IFC OUT input. With station : 2.5V or more, refer to S03 F/E control.85 NC (POWER_DET) I Extra Power IC DC offset detection. 03 model not used. Connect to GND.86 NC O NC (Except J type) Output : L87R_CLK I Tuner RDS decoder clock input.NC I NC (Without RDS, RBDS model) Connecto to GND.88 LX_REQ_S I LX Receive request from external slave. Request : L89 KEY_REQ I To panel Communication request from LCD driver90 CD_SW1 I CD Loading switch detection. Loading start power off : L91 CD_SW2 I CD 12cm disc detection switch. 12cm disc power off : L92R_QUAL I Tuner RDS decoder QUAL input.NC I NC (Without RDS, RBDS model) Connecto to GND.93R_DATA I Tuner RDS decoder data input.NC I NC (Without RDS, RBDS model) Connecto to GND.94 LX_DATA_S I LX Data input from external slave.95 LX_DATA_M O LX Data output to external slave.96 LX_CLK I/O LX Clock input/output with external slave.97 L_DATAL I To panel Data input from LCD driver.98 L_DATAS O To panel Data output to LCD driver.99 L_CLK O To panel Clock output to LCD driver.100 PLL_CLK I/O Tuner Clock input/output with F/E.MICROCOMPUTERS TERMINAL DESCRIPTIONKDC-M7024/MP8228Truth tablew Destination portMODEL Destination DISPLAY TYPE2 TYPE1 TYPE0KDC-X969 K FL 0 0 0KDC-MP922 K FL 0 0 1FX-9000 J FL 0 1 0KDC-PSW9524 E FL 1 0 0KDC-9023R M (E) FL 1 0 1KDC-X869 K FL 0 1 1KDC-8024 E FL - - -KDC-MP822 K LCD - 0 0KDC-M7024 E LCD - 0 1FX-5000 J LCD - 1 0KDC-V7022 K LCD 0 0 0KDC-X769 K LCD 0 0 1KDC-722 K LCD 0 1 0KDC-7024E LCD 0 1 1KDC-7024YKDC-8023 M (K) LCD 1 0 0Note : When FL model using TYPE2, K & J type (with ANT_CON model) : L, E type (without ANT_CON model) : HDestination(IC2)TYPE0 TYPE1Market model L LMarket model CRSC modiification L HOEM model CRSC modification H LOEM model CRSC and de-emphasis modification H He FPM MOTORSlideFPM mechanism operationFPM MOTOR B FPM MOTOR F0 0 Standby1 0 Backward operation0 1 Forward operation1 1 BrakeAngleFPM mechanism operationFPM MOTOR O FPM MOTOR C0 0 Standby1 0 Angle open direction0 1 Angle close direction1 1 BrakeMICROCOMPUTERS TERMINAL DESCRIPTIONKDC-M7024/MP8229a71 MECHANISM MICROCOMPUTER : 703033BYGC-J02 (X32-541 : IC7)Pin No. Pin Name I/O Use Processing OperationSTBYProcessing1 NC O Not used. Fixed Low Low2 E2P_SCL O ROM correction E2P IC2 clock. Hi-Z35 NC O Not used. Fixed Low Low6 VDD - 5V7 GND - GND8, 9 NC O Not used. Fixed Low Low10 PON O Power ON/OFF control. H : ON, L : OFF Low11 /PON O Power ON/OFF control. H : OFF, L : ON High12 LOE/LIM_SW I Down limit switch detection. L : Most Inner position detection Hi-Z13 8EjE_SW I Not used. Fixed Low Hi-Z14 LOS_SW I Not used. Fixed Low Hi-Z15 12EjE_SW I Not used. Fixed Low Hi-Z16, 17 NC O Not used. Fixed Low Low18 IC/Vpp - Write voltage (Flash). -19 MUTE_L O L ch audio mute control. L : Mute ON, H : Mute OFF Low20 MUTE_R O R ch audio mute conrol. L : Mute ON, H : Mute OFF Low2125 NC O Not used. Fixed Low Low26 EFLG I WMA error detection. H : Error, L : No error Hi-Z27 WAIT I Wait control signal detection. Hi-Z28 FOK I Focus condition detection. H : Focus OK, L : Focus NG Hi-Z29, 30 NC O Not used. Fixed Low Low31 RESET I Reset detection. H : Normal, L : Reset Hi-Z32 XT1 I Not used. Hi-Z33 XT2 - Not used. -34 REGC -35 X2 -36 X1 I Hi-Z37 Vss - GND38 VDD - 5V39 NC O NC Output stop. Low40 WRL O Multiplex WRITE signal. _LBEN : 61002 (Not used), _WRL : 63760 Out-Low41 NC O Not used. Fixed Low Low42 R/W O Multiplex _R/W signal _R/W : 61002, _WRH : 63760 (Not used) Out-Low43 DSTB,RD O Multiplex DSTB or RD signal _DSTB : 61002, _RD : 63760 Out-Low44 ASTB O Multiplex ASTB signal Out-Low45, 46 NC O Not used. Fixed Low Low4754 AD0AD7 I/O Multiplex address/data Out-Low55 BVdd - Bus interface power supply.MICROCOMPUTERS TERMINAL DESCRIPTIONKDC-M7024/MP82210Pin No. Pin Name I/O Use Processing OperationSTBYProcessing56 BVss - Bus interface GND.5764 AD8AD15 I/O Multiplex data/address Out-Low65 /HCSB O Chip select control. H : OFF, L : ON Low66 /CS O Chip select control. H : OFF, L : ON Low67 DSP RESET O DSP reset control. H : Normal. L : Reset Low68 REQ I Data transfer request input. Hi-Z69 DBBWRDY0 I DBB00 register write permission input. Hi-Z70 DBBRRDY0 I DBB00 register read permission input. Hi-Z71 Avdd -72 Avss -73 Avref I
