Kenwood-KDCMP-242-U-Service-Manual(2) 电路图 维修手册.pdf

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1、This product uses Lead Free solder. This product complies with the RoHS directive for the European market. SERVICE MANUAL 2008-11 PRINTED IN JA PAN B53-0687-00 (N) 313 KDC-MP242U/MP342U KDC-MP443U/MP5043U KDC-MP543U CD RECEIVER Panel assy KDC-MP242U (A64-4667-02) Panel assy KDC-MP342U (A64-4666-02)

2、TDF SPARE-PANEL MAIN UNIT NAMETDF PARTS No.TDF NAME KDC-MP242UY33-3030-11TDF-MP92DCR KDC-MP342UY33-3030-10TDF-MP93D KDC-MP443UY33-3030-23TDF-MP443U KDC-MP5043UY33-3030-21TDF-MP5043U KDC-MP543UY33-3030-22TDF-MP543U Mounting hardware assy (J22-0789-03) Lever (D10-7049-04) x2 DC cord (E30-6798-05) Scre

3、w set (N99-1757-15) Escutcheon (B07-3271-01) * Carrying case (W01-1710-05) Screw (4x16) (N84-4016-48) * Remote controller assy (RC-5xx) (A70-xxxx-xx) Battery (Not supplied) * Depends on the model. Refer to the parts list. * Plastic cabinet assy (A02-2757-13) Panel assy KDC-MP5043U (A64-4668-02) Pane

4、l assy KDC-MP543U (A64-4669-02) Panel assy KDC-MP443U (A64-4688-02) KDC-MP242UKDC-MP342U KDC-MP443U KDC-MP5043U KDC-MP543U RadioFans.CN 收音机爱 好者资料库 2 KDC-MP242U/MP342U/MP443U KDC-MP5043U/MP543U BLOCK DIAGRAM ELECTRIC UNIT (X34- ) SWITCH UNIT (X16- ) LX-BUS E-VOL IC2 A8V SYSTEM u-COM BU Q701-704 PHONE

5、 ACC-DET Q101 Q103 BU-DET Q102 SW14V Q11,12 Q2,3 A8V SERVO+B D5 BU5 SW5 BU PAN5V RESET IC IC8 ILLUMI+B CN RESET REMOTE FL IC1 IC6 IC2 J1 ILLUMI+B AM+B S1 ED1 J5 MUTE Q705 J4 W500 A1 SERVO+B BU5 Q301 BU5 DME1 BU5 SW5 S2 J1 SW5 AM+B A8V ANT. IC7 SW5 E2PROMSW5 A8V BU5 SW5 FRONT J2 PANEL DET IC1 BU5 SW5

6、 FL+B IC4 FL+B J3 BU5 IC10 Q7-10 RDS DECODER FRONT-END CD MECHA ROTARY ENCODERDRIVER FL KEY ILLUMI Rx1 1/4W KEY MATRIX 1/4W Rx2 ILLUMI +B CD SERVO IC SUPPLY POWER DC-CN etc MUTE PRE-OUT IC POWER PRE-OUT DET SURGE DC-CN AUX D1-17 S3-20 BU5 USB5V BU5 USB CN J3 SW+16V SW5 Q51,52 USB5V IC51 BU 3.3V IC53

7、 LEVEL SHIFT BU5 BOLERO u-COM IC251,252 IC900 BU5 SW HI-SIDE iPod AUTHENTICATION USB5V IC950 IC52 2 5 1 BU DET PHONE ACC DET RST 9 5 SW5 9 BU DET 1 2 MUTE 8 R15 12 3 SW5 to GND 3 3 1 ROM CORRECTION (NOT USED) 1 1 111 R61,62 R118 1 FL+B PS1-1 / PS1-2 / PS1-3 ACC DET / BU DET PS2-1 / PS2-2 PHONE REAR/

8、SW FRONT PS1-1 / PS1-2 / PS1-3 PS2-1 / PS2-2 P-ANT P-CON SP-OUT PHONE ACC B.U. RST 5 FRONT L/R REAR L/R P STBY 16 2 8 8 4 2 2 RadioFans.CN 收音机爱 好者资料库 3 KDC-MP242U/MP342U/MP443U KDC-MP5043U/MP543U BLOCK DIAGRAM DPU1 CD PLAYER UNIT (X32-6250-00) BOARD MOTHER (X34- ) EF A C B TR COIL FO COIL APC IC4 16

9、.934MHz CLOCK IC3 LOADING & MOTOR DRIVER MOTOR SPINDLE S2 S1 SLED MOTOR DM1 DM2 X1 Q1 RF AMP SERVO MP3 DECODER WMA DECODER 1M bit SRAM PROCESSOR AAC DECODER + + + + + LEVEL SHIFT RESISTOR FILTER FILTER D1.5V IC5 Q14 REG BU1.5V/ OUTPUT D3.3V VREF 12EJE-SW LOS-SW LOE-SW MOTOR LO/EJ A.GND TR OUT FO OUT

10、 DM OUT FM OUT A3.3V LD SIGNAL A/B/C/E/F S.GND S7.5V FO OUT TR OUT DM OUT FM OUT DRV MUTE SO SRAM STB SI BUCK CCE PIO0 R15 SRAM STB BUCK CCE PIO0 SO SI MRSTMRST C43 C44 Rch LchLch Rch ZDETMUTE L/R D.GND D GND BU1.5V D1.5V D3.3V AGND BU5V P.ON PD RadioFans.CN 收音机爱 好者资料库 4 KDC-MP242U/MP342U/MP443U KDC

11、-MP5043U/MP543U COMPONENTS DESCRIPTION ELECTRIC UNIT (X34-623x-xx) Ref. No.Application / FunctionOperation / Condition / Compatibility IC1System -COMControls FM/AM tuner, the changer, CD mechanism, panel, volume and tone. IC2E-VOLControls the source, volume, tone. IC4Power Supply ICOutputs 5V2, 8.1V

12、2, 10.2V, P-CON, P-ANT. IC6Power IC Amplifi es the front L/R and the rear L/R to 50W maximum. IC7RDS ICDecodes RDS. IC8Reset ICLo when detection voltage goes below 3.6V. IC51Switching RegulatorPower supply for D+5.1V. (to USB and Panel) IC52Hi-side SWDetects USB Over Current. IC53D+3.3V AVR ICPower

13、supply for D+3.3V. (IC252,900,950) IC251Level Shift (3.3V5V)Shifts level. (3.3V5V) IC252Level Shift (5V3.3V)Shifts level. (5V3.3V) IC900Sub -COMControls USB and CD mechanism. IC950i-Pod Authentication CoprocessorAuthenticates i-Pod. Q2Servo+B AVRWhen Q3s base goes Hi, AVR outputs 7.5V. Q3Control SW

14、for Servo +BON when the base goes Hi. Q7FL+B SWON when the base goes Hi. Q8FL+B AVRWhen Q9s base goes Hi, AVR outputs 10.5V. Q9Control SW for FL+BON when the base goes Hi. Q10FL+B SWON when the base goes Lo. Q1114V SWON when the base goes Hi. Q1214V SWON when the base goes Lo. Q13Control SW for IC4O

15、N when the base goes Hi. Q14Control SW for IC4ON when the base goes Lo. Q51Control SW for 16V SWON when the base goes Hi. Q5216V SWWhen Q51s base goes Hi, AVR outputs BU voltage. Q53FREQ CONT SW for IC511.3MHz when the base goes Lo, 1.8MHz when the base goes Hi. Q101ACC DETON when the base goes Hi d

16、uring ACC is applied. Q102Serge DETWhen the base goes Hi, Surge voltage is detected. Q103BU DETON when the base goes Hi during BU is applied. Q104,105Mute ControlON when the base goes Hi. Q301Panel 5V SWON when the base goes Lo. Q701704Pre-out Mute SWWhen a base goes Hi, pre-out is muted. Q705Mute D

17、river for Pre-outON when the base goes Lo. Q902,9033.3V AVR for IC900When base of Q902 goes Hi, 3.3V is ON. Q905CD “LOE_LIM_SW”_BufferWhen the base goes Hi, loading ends. 5 KDC-MP242U/MP342U/MP443U KDC-MP5043U/MP543U SWITCH UNIT (X16-647x-xx) Ref. No.Application / FunctionOperation / Condition / Com

18、patibility IC1FL Driver IC2Remote Control Sensor CD PLAYER UNIT (X32-6250-00) Ref. No.Application / FunctionOperation / Condition / Compatibility IC34ch BTL Driver Driver for focusing & tracking coil, driver for sled & spindle motor, and operation for disc loading & ejection. IC4Servo DSP with built

19、-in Audio DACWith built-in MP3/WMA/ACC decoder and 1M-bit-SRAM. IC5BU1.5V/D3.3V REG. Power supply for BU1.5V. Power supply for digital/analogue/audio 3.3V. Q1APC (Auto Power Control)Drives LD (Laser Diode). Q14D1.5V Output Switches ON/OFF at one end of BU1.5V line which is separated into 2 direction

20、s. Uses output voltage as D1.5V. D2Laser Diode Protection Prevents reverse bias which is applied to laser. Laser destruction prevention. D3,4Static Electricity CountermeasurePrevents malfunction by static electricity. COMPONENTS DESCRIPTION 6 KDC-MP242U/MP342U/MP443U KDC-MP5043U/MP543U SYSTEM -COM:

21、IC1 on X34- (ELECTRIC UNIT) Pin No.Pin NameI/OApplication Truth Value Table Processing Operation Description 1LX DATA MI/OData to slave unit 2LX CLKI/OLX-BUS clock125kHz65kHz 35NC-Not used Output L fi xed 6REMOIRemote control signal inputDetects pulse width 7NC-Not used Output L fi xed 8BYTEIMemory

22、extension bus width settingConnects to VSS 9CNVSS- Connects to VSS. H: Possible to rewrite fl ash ROM 10XCIN-32.768kHz 11XCOUT-32.768kHz 12RESET-L: Reset 13XOUT-10.0MHz 14VSS- 15XIN-10.0MHz 16VCC1- 17NMIIConnects to VSS 18PANEL DETIPanel communication detectionH: Panel detached, L: Panel attached 19

23、,20NC-Not used Output L fi xed 21ROMCOR DETIE2PROM writing requestH: E2PROM writing 22,23NC-Not used Output L fi xed 24PON FLOKey illumination power supply controlON: H, OFF: L 25NC-Not used Output L fi xed 26PON PANELI/OPanel 5V control ON: L 11 minutes after momentary power-down, panel detached or

24、 ACC OFF: Hi-Z 27,28NC-Not used Output L fi xed 29AUD SCLI/OE-VOL clock input/output 30AUD SDAI/OE-VOL data input/output 31VFD SYS DATAOVFD data output The communication begins after 500ms after VFD_BLK (34) goes Hi. 32VFD PAN DATAIVFD data input 33VFD CLOVFD clock output125kHz 34VFD BLKOVFD driver

25、reset output H: Reset cancelled, L: Reset 11 minutes after momentary power-down, panel detached or ACC OFF: L 35S SYS DATAOBolero serial output 36S SOC DATAIBolero serial input 37S SOC CLKIBolero serial clock input 38CD LOS SWICD loading detection 39CD LOE LIM SWICD detection (Chucking SW)H: Loading

26、 completed, L: No disc 40CD LOEJI/OCD motor control qRefer to the truth value table MICROCOMPUTERS TERMINAL DESCRIPTION 7 KDC-MP242U/MP342U/MP443U KDC-MP5043U/MP543U MICROCOMPUTERS TERMINAL DESCRIPTION Pin No.Pin NameI/OApplication Truth Value Table Processing Operation Description 41EPMIFlash ROM E

27、PM input L: Possible to rewrite fl ash ROM Connects to VSS (Never set it to output Hi) 42CD MOTORI/OCD motor control qRefer to the truth value table 43NC-Not used Output L fi xed 44CD DISC12 SWI12cm disc detection 45NC-Not used Output L fi xed 46VFD CEOVFD control request 47NC-Not used Output L fi x

28、ed 48ROTARY CCWIVOL key input (Counter-clockwise)Detects pulse width 49ROTARY CWIVOL key input (Clockwise)Detects pulse width 50NC-Not used Output L fi xed 51RDS DATAI/ORDS decoder data input(Terminal for European model) 52RDS QUALIRDS decoder QUAL input(Terminal for European model) 53CD MUTEICD mut

29、e requestH: Normal, L: Mute request 54S SOC REQI Communication request from SOC to system -COM 55SOC RSTOSOC resetH: Normal, L: Reset 56SOC S STOPOSOC stopH: Normal, L: SOC stopped 57S SYS REQO Communication request from system -COM to SOC 5861NC-Not used Output L fi xed 62VCC2- 63NC-Not used Output

30、 L fi xed 64VSS- 65RDS NOISEIFM noise detection(Terminal for European model) 66TUN SMETERIS-meter input 67TUN IFC OUTIFront-end IFC-OUT inputH: Station detected, L: No station 68AUD DC ERRIDC offset detection If DC offset is detected 20 times in 100ms with condition below 1.0V, it will be judged as

31、DC offset is detected. 69LX RSTOForced reset to slave unitH: Reset, L: Normal 70LX CONOStart-up request to slave unitH: Slave unit ON, L: Slave unit OFF 71LX MUTEIMute request from slave unitH: Mute ON, L: Mute OFF 72LX REQ MOCommunication request to slave unit 73PWIC SVROSVR discharge circuit Durin

32、g 500ms after power OFF or momentary power-down: H, Since then: L 74RDS CLKI/ORDS decoder clock input(Terminal for European model) 75LX REQ SICommunication request from slave unit 76PWIC STBYOPower IC standby controlPower ON: H, Power OFF: L 77PWIC MUTEOPower IC mute STANDBY source or momentary powe

33、r-down: L, TEL mute: L 8 KDC-MP242U/MP342U/MP443U KDC-MP5043U/MP543U MICROCOMPUTERS TERMINAL DESCRIPTION Truth value table q CD motor control CD motorCD loading/eject StopLL LoadHL EjectHH BrakeHHi-z w Power supply IC (IC4) control SEL1 (Pin 10) PS1-2PS1-3PS2-1ILLUMIP-CONP-ANT LLLOFFOFFOFF LLHONOFFO

34、FF HLHONONOFF HHHONONON SEL2 (Pin 11) PS1-1PS2-2AUDIO/SW5AM LLOFFOFF HLONOFF HHONON Pin No.Pin NameI/OApplication Truth Value Table Processing Operation Description 78MUTEI/OMuteL: Mute OFF, Hi-Z: Mute ON 79BU DETIMomentary power-down detection BU detected: L, No BU or momentary power-down: H (Opera

35、tes below 4ms after momentary power-down is detected) 80ACC DETIACC power supply detectionACC detected: L, No ACC: H 81TYPE1IDestination SW 82TYPE2IDestination SW 83PWIC DC ERRI Detects whether power IC was short-circuited to +B or GND 84LINE MUTEILine mute detectionTEL mute: Below 1V, NAVI mute: Ov

36、er 2.5V 85NC-Not used Output L fi xed 86FSELOFrequency SW for switching regulatorH: 1.3MHz, L: 1.8MHz 87PON SWREGOON/OFF for switching regulatorH: ON, L: OFF 88,89NC-Not used Output L fi xed 90PS2 2OPower supply IC controlwRefer to the truth value table 91PS2 1OPower supply IC controlwRefer to the t

37、ruth value table 92PS1 1OPower supply IC controlwRefer to the truth value table 93PS1 2OPower supply IC controlwRefer to the truth value table 94PS1 3OPower supply IC controlwRefer to the truth value table 95NC-Not used Output L fi xed 96AVSS- 97REF CONOVREF controlConnects to VREF 98VREF- 99AVCC- 1

38、00LX DATA SIData from slave unit 9 KDC-MP242U/MP342U/MP443U KDC-MP5043U/MP543U Example :. KeyDescription of displayDescription 5 Disc EJECT times display EJCXXXXXDisc EJECT times display. MAX 65535 (times) 5 While disc EJECT times is displayed, press and hold for 2 seconds or longer to clear disc EJ

39、ECT times. A symbol “” in the key column indicates that the key should be pressed and held for 1 second or longer. How to enter the test mode ProcedureNote Press and hold the 1 key and 3 key and reset. All lamps blink when it is detected that the sub-clock resonator is disconnected. When having star

40、ted up in the test mode, change the LINE MUTE inhibition time from 10 seconds to 1 second. When operating in the test mode, even if a DC offset error occurs, detection information is not written in the E2PROM. When operating in the test mode, CD mechanism error log information clear mode, and DC off

41、set error detection information clear mode, do not perform DEMO mode operations. Also, do not display DEMO ON/OFF option items in the MENU in STANDBY source in the above modes. Forced disc ejection is prohibited in the test mode. How to clear the test mode ProcedureNote Reset, momentary power down,

42、ACC OFF, Power OFF, Panel detached.Clearing the test mode Test mode default condition DescriptionDefault values SourceSTANDBY DisplayDisplay lights are all turned on. Volume-10dB (“30” is displayed.) Bass BoostOFF CRSCOFF regardless of having/not having the switching function. AUXON1 System QNATURAL

43、 PreoutRear TEST MODE 10 KDC-MP242U/MP342U/MP443U KDC-MP5043U/MP543U Special displays when all lights are on in STANDBY source KeyDescription of displayDescription CommonAll lights ON.All lights ON. 1 Destination terminal condition indication TYPE : 11 “TYPE” indicates system -com (IC1) destination,

44、 and shows real-time condition of the destination terminal. Development ID condition indication 801E23 . 00Development ID Version (system -com: IC1) Information display Name of mechanism type Mechanism version 9B20 : Display of name of mechanism type and mechanism version (Bolero version) (Press the

45、 key while the display is what is shown in the left column to change to the servo version display.) Information display Mechanism servo version (USB) SERV : Display of mechanism servo table version (Press the key while the display is what is shown in the left column to display mechanism boot program

46、 version.) Information display Mechanism boot program version (USB) BOOT : Display of mechanism boot program version (Press the key while the display is what is shown in the left column to return to the normal display.) 2Serial No. display 00000000Serial No. is displayed (8 digits) 3 Power ON time d

47、isplay PON0HXX 0050 is displayed for “XX”. When less than 1 hour, displayed by displayed by increments of 10 minutes. PONXXXXX 0000110922 is displayed for “XXXXX”. MAX 10922 (hours) 3 When Power ON time is displayed, press and hold for 2 seconds or longer to clear Power ON time. 4 Disc operation tim

48、e display CDT0HXX 0050 is displayed for “XX”. When less than 1 hour, displayed by increments of 10 minutes. CDTXXXXX0000110922 is displayed for “XXXXX”. MAX 10922 (hours) 4 While the disc operation time is displayed, press and hold for 2 seconds or longer to clear the disc operation time. (Cleared o

49、nly for displayed media.) 5 Disc EJECT times display EJCXXXXXDisc EJECT times display. MAX 65535 (times) 5 While disc EJECT times is displayed, press and hold for 2 seconds or longer to clear disc EJECT times. 6 Panel open/close times display PCXXXXXPANEL open/close times display. MAX 65535 (times) 6 Press the key for more than 2 seconds while the PANEL open/ close count is displayed and PANEL open/close count is cleared. FM ROM correction version display 0123 : 0123 XXXX : XXXX (System -com ROM correction version: Mechanism -com ROM correction)