Kenwood-KDCMP-208-Service-Manual(2) 电路图 维修手册.pdf

《Kenwood-KDCMP-208-Service-Manual(2) 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Kenwood-KDCMP-208-Service-Manual(2) 电路图 维修手册.pdf（40页珍藏版）》请在收音机爱好者资料库上搜索。

1、This product uses Lead Free solder. This product complies with the RoHS directive for the European market. SERVICE MANUAL 2007-9 PRINTED IN JA PAN B53-0575-00 (N) 373 KDC-MP208/MP238 KDC-MP238CR/MP239 KDC-MP3039/MP339 KDC-MP339S/MP439 CD RECEIVER * Depends on the model. Refer to the parts list. Pane

2、l assy KDC-MP208 (A64-4275-02) Panel assy KDC-MP238 (A64-4273-02) TDF SPARE-PANEL MAIN UNIT NAMETDF PARTS No.TDF NAME KDC-MP208Y33-2830-62TDF-MP82DT KDC-MP238Y33-2830-60TDF-MP82D KDC-MP238CRY33-2830-61TDF-MP82DCR KDC-MP239Y33-2820-61TDF-MP239 KDC-MP3039Y33-2820-62TDF-MP3039 Panel assy KDC-MP239 (A64

3、-4282-02) Mounting hardware assy (J21-9716-03) * Remote controller assy (RC-xxx) (A70-xxxx-xx) Battery (Not supplied) KDC-MP339Y33-2820-63TDF-MP339 KDC-MP339SY33-2820-64TDF-MP339S Panel assy KDC-MP238CR (A64-4274-02) Lever (D10-4589-04) x2 Screw set (N99-1757-05) Screw (4x16) (N84-4016-48) DC cord (

4、E30-6415-15) * Escutcheon (B07-xxxx-xx) Panel assy KDC-MP339 (A64-4284-02) KDC-MP339S (A64-4285-02) Panel assy KDC-MP3039 (A64-4283-02) Panel assy KDC-MP439 (A64-4281-02) KDC-MP439Y33-2820-60TDF-MP439 KDC-MP208 KDC-MP238 KDC-MP238CR KDC-MP239 KDC-MP3039 KDC-MP339 KDC-MP439 * Plastic cabinet assy (A0

5、2-2736-03) * Carrying case (W01-xxxx-xx) RadioFans.CN 收音机爱 好者资料库 2 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 BLOCK DIAGRAM 2 16 1 FRONT/ P.ON FL BU DET PHONE ACC DET RST PHONE ACC DET / BU DET PS1-1 / PS1-2 / PS1-3 P.ON FL PS2-1 / PS2-2 9 5 9 BU DET 11 2 MUTE 8 R11-15 12 3 3 ROM CO

6、RRECTION (NOT USED) 1 1 REAR/SW 111 R80,81 P-ANT P-CON B.U. ACC PHONE SP-OUT PS2 1 / PS2 2 PS1 1 / PS1 2 / PS1 3 R103 1 FL+B 5 LX-BUS E-VOL IC2 A8V SYSTEM u-COM BU POWER DC-DET Q701-704 PRE-OUT PHONE ACC-DET Q101 SURGE- Q103 BU-DET Q102 Q2 DC-CN A8V SERVO+B D5 BU5 SW5 DET BU DC-CN etc PAN5V RESET IC

7、 IC8 ILLUMI+B CN RESET ENCODER ROTARY REMOTE ILLUMI KEY MATRIX KEY VFD IC1 SW5 IC6 IC3 J1 +B ILLUMI ILLUMI+B AM+B S1 ED1 CN4,J5 MUTE Q705 J4 J2 A1 SERVO+B A8V BU5 1/2W Rx5 Q301 BU5 BU5 Q901-903 DME1 BU5 SW5 CD SERVO IC to GND S2 J1 SW5 AM+B A8V TUNER FRONT-END ANT. ANALOG SW IC9 E2PROMSW5 BU MECHA C

8、D CONT SW Q401 A8VA8V PRE-OUT MUTE BU5 SW5 F-AUX J2 PANEL DET Rx2 1/4W IC1 BU5 SW5 SW14V FL+B IC4 POWER SUPPLY IC FL+B J3 BU5 IC10 VFD DRIVER Q8,9 Q7 ELECTRIC UNIT (X34- ) SWITCH UNIT (X16- ) VREF 8EJE-SW 12EJE-SW LOS-SW LOE-SW MOTOR LO/EJ A.GND A8V A,B,C,E,F TR OUT FO OUT DM OUT FM OUT A3.3V LD SIG

9、NAL S.GND S7.5V FO OUT TR OUT DM OUT FM OUT DRV MUTE SO SRAMSTB SI BUCK CCE PIO0 R246,247 SRAMSTB BUCK CCE PIO0 SO SI MRSTMRST C88,R82 C87,R83 R-ch L-chL-ch R-ch ZDETMUTE L/R D.GND D GND BU1.5V SW1.5V SW3.3V AGND BU5V P.ON EF A C B TR COIL FO COIL APC IC4 16.934MHz CLOCK IC3 3.3V REG IC7 LOADING & M

10、OTOR DRIVER MOTOR SPINDLE S2 S4 S1 S3 (0-01) SLED MOTOR DM1 DM2 X1 Q1 RF AMP SERVO MP3 DECODER WMA DECODER 1M bit SRAM PROCESSOR AAC DECODER + + + + + LEVEL SHIFT Q11 SHIFT LEVEL Q12 LEVEL SHIFT SHIFT LEVEL Q10 CR FILTER CR FILTER REVERSAL CIRCUIT Q13 BU1.5V REG IC5 IC6 IC11 SW3.3V REG SW1.5V REG ON

11、LY LOADING & DPU1 CD PLAYER UNIT (X32-597x-xx) BOARD MOTHER (X34- ) RadioFans.CN 收音机爱 好者资料库 3 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 COMPONENTS DESCRIPTION ELECTRIC UNIT (X34-564x-xx) Ref. No.Application / FunctionOperation / Condition / Compatibility IC1System -COM Controls FM/

12、AM tuner, the changer, CD mechanism, panel, volume and tone. IC2E-VOL Controls the source, volume and tone. IC4Power Supply IC Outputs 5Vx2, 8.1Vx2, 10.2V, P-CON and P-ANT. IC6Power IC Amplifi es the front L/R and the rear L/R to 50W maximum. IC8Reset IC Lo when detection voltage goes below 3.6V. IC

13、9Analog SW Multiplex triple 2-channel analog SW. Q2Servo+B AVR When Q3s base goes Hi, Servo+B AVR outputs 7.5V. Q3Control SW for Servo+B ON when the base goes Hi. Q7VFD+B SW ON when the base goes Hi. Q8VFD+B AVR When Q9s base goes Hi, Servo+B AVR outputs 10.5V. Q9Control SW for VFD+B ON when the bas

14、e goes Hi. Q1114V SWON when the base goes Hi. Q1214V SWON when the base goes Lo. Q13Control SW for IC4ON when the base goes Hi. Q14Control SW for IC4ON when the base goes Lo. Q101ACC DET ON when the base goes Hi during ACC is applied. Q102Serge DET When the base goes Hi, surge voltage is detected. Q

15、103BU DET ON when the base goes Hi during BU is applied. Q104,105Mute Control ON when the base goes Hi. Q301Panel 5V SW ON when the base goes Lo. Q401IC9 Control SWSwitches to AUX when the base goes Hi, and switches to LX-BUS (CD-CH) when the base goes Lo. Q402Quick Charge Voltage SW Charges voltage

16、 quickly when the base goes Hi. Q701704Pre-out Mute SW When a base of the 4 transistors goes Hi, pre-out is muted. Q705Mute Driver for Pre-out ON when the base goes Lo. Q801Electric Discharge Circuit for C805 (SVR)ON when the base goes Lo. Q901DC Offset DET ON when the base goes Hi after Q902s and Q

17、903s outputs are separated. Q902,903DC Offset DET SW ON when the bases go Lo after IC6s SP-OUTs (DC) are separated. SWITCH UNIT (X16-617x-xx) Ref. No.Application / FunctionOperation / Condition / Compatibility IC1VFD Driver IC3Remote Control Sensor CD PLAYER UNIT (X32-5970-02) Ref. No.Application /

18、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-in Audio DAC With built-in MP3/WMA/AAC decoder and 1M-bit-SRAM. RadioFans.CN 收音机爱 好者资料库 4 KDC-MP208

19、/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 Ref. No.Application / FunctionOperation / Condition / Compatibility IC5D1.5V REG. Power supply for digital 1.5V. IC6D3.3V REG. Power supply for digital 3.3V. IC11BU1.5V REG. Power supply for back-up 1.5V. Q1APC (Auto Power Control) Drives LD (Laser

20、Diode). Q10125V3.3V Level Shift Converts signal from 5V to 3.3V, or from 3.3V to 5V. Q13Inverter Inverts ZDET signal. D1Level Down Lowers signal level by about 1.2V so that Lo level signal that turns the regulator ON/OFF surely becomes Lo judgment level of the regulator SW. D2Laser Diode Protection

21、Prevents reverse bias which is applied to laser. Laser destruction prevention. D3,4Static Electricity Countermeasure Prevents malfunction by static electricity. COMPONENTS DESCRIPTION 5 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 SYSTEM -COM: IC1 on X34- (ELECTRIC UNIT) Pin No.Pin Na

22、meI/OApplication Truth Value Table Processing Operation Description 1LX DATA MI/OData to slave unitPull-down (GND) 2LX CLKI/OLX-BUS clock125k65kHz 35NC-Not used Output L fi xed 6REMOIRemote control signal inputDetects pulse width 7NC-Not used Output L fi xed 8BYTE-Memory extended bus width settingCo

23、nnects to VSS 9CNVSS-32.768kHzConnects to VSS 10XCIN-32.768kHz 11XCOUT-32.768kHz 12RESET-L: Reset 13XOUT-10.0MHz 14VSS- 15XIN-10.0MHz 16VCC1- 17NMIIConnects to VCC 18PANEL DETIPanel communication detectionH: Panel detached, L: Panel attached 19,20NC-Not used Output L fi xed 21ROMCOR DETIE2PROM writi

24、ng requestH: 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, Momentary power down/Panel detached : Hi-Z, 11 minutes after ACC OFF: Hi-Z 27,28NC-Not used Output L fi xed 29AUD SCLI

25、/OE-VOL clock output 30AUD SDAI/OE-VOL data input/output 31VFD SYS DATAOVFD data output 32VFD PAN DATAIVFD data input 33VFD CLKOVFD clock output125kHz 34VFD BLKOVFD data blanking output H: Reset cancelled, L: Reset, Momentary power down /Panel detached: L, 11 minutes after ACC OFF: L 35CD SIOCD mech

26、anism serial output 36CD SOICD mechanism serial input 37BUCKOSerial clock output1MHz 38CD LOS SWICD loading detection 39PIO0ICommunication request from mechanism DSPH: Data request 40CD SRAMSTBO1M-bit SRAM standbyH: SRAM standby 41EPMIFlash EPM inputConnects to VSS 42CD LOE LIM SWICD detection (Chuc

27、king SW)H: Loading completed, L: No disc MICROCOMPUTERS TERMINAL DESCRIPTION 6 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 Pin No.Pin NameI/OApplication Truth Value Table Processing Operation Description 43PON CDOCD mechanism power supply controlH: Power ON 44CD LOEJI/OCD motor contr

28、olqRefer to the truth value table 45CD MOTORI/OCD motor controlqRefer to the truth value table 46VFD CEOVFD control request 47CD DRIVEMUTEOMotor driver mute output 48CD CCEOCD mechanism chip enable 49NC-Not used 50CD MRSTOCD mechanism -com resetH: Normal, L: Reset 5153NC-Not used Output L fi xed 54C

29、D MUTEICD mute requestL: Mute request 55CD DISC12 SWI12cm disc detectionPull-up (B.U.) 56ROTARY CCWIVOL key inputDetects pulse width 57ROTARY CWIVOL key inputDetects pulse width 5861NC-Not used Output L fi xed 62VCC2- 63NC-Not used Output L fi xed 64VSS- 65NC-Not used 66TUN IFC OUTIFront-end IFC-OUT

30、 inputH: Station found, L: No station 67PON EXT GND I/OIC2 external input quick charge control L: OFF, Hi-Z: Quick charge, When IC2 is in source select: Hi-Z, Mute L: L, Momentary power down/Power OFF: L 68MUTEI/OMuteL: Mute OFF, Hi-Z: Mute ON 69ANALOG CONOAUX/LX audio switching AUX: H (Switches aft

31、er 100ms after fi rst-out mute begins to work), LX/Other source: L 70LX RSTOForced reset to slave unitH: Reset, L: Normal 71LX CONOStart-up request to slave unitH: Slave unit ON, L: Slave unit OFF 72LX MUTEIMute request from slave unitH: Mute ON, L: Mute OFF 73LX REQ MOCommunication request to slave

32、 unit 74NC-Not used 75LX REQ SICommunication request from slave unitPull-down (GND) 76PWIC SVROSVR discharging circuit During 500ms after power OFF and momentary power down: H, Since then: L 77PWIC STBYOPower IC standby controlPower ON: H, Power OFF: L 78PWIC MUTEOPower IC mute STANDBY source/Moment

33、ary power down: L, TEL mute: L 79ACC DETIACC power supply detectionACC found: L, No ACC: H 80BU DETIDetection of momentary power down BU found: L, No BU/Momentary power down: H (Operates after less than 4ms after momentary power down is detected) 8183NC-Not used Output L fi xed 84TUN SMETERIS-meter

34、input 85TYPE1IDestination switchingeRefer to the truth value table MICROCOMPUTERS TERMINAL DESCRIPTION 7 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 Pin No.Pin NameI/OApplication Truth Value Table Processing Operation Description 86TYPE2IDestination switchingeRefer to the truth value

35、 table 87PWIC DC DETIDC offset detection If DC offset is found 20 times in 100ms with condition of over 1.0V, it will be judged as DC offset detected. 88LINE MUTEILine mute detectionTEL mute: Below 1V, NAVI mue: Over 2.5V 89OFFSET DETIPower IC offset detection 90PS2 2OPower supply IC controlrRefer t

36、o the truth value table 91PS2 1OPower supply IC controlrRefer to the truth value table 92PS1 1OPower supply IC controlrRefer to the truth value table 93PS1 2OPower supply IC controlrRefer to the truth value table 94PS1 3OPower supply IC controlrRefer to the truth value table 95NC-Not used Output L f

37、i xed 96AVSS- 97REF CONOVREF controlConnects to VREF 98VREF- 99AVCC- 100LX DATA SIData from slave unitPull-down (GND) MICROCOMPUTERS TERMINAL DESCRIPTION Truth value table q CD motor control CD motorCD loading/eject StopLL LoadHL EjectHH BrakeHHi-z e Destination switching TYPE 2 (Pin 86) TYPE 1 (Pin

38、 85) Model 0V0VKDC-135/MP2035/MP205 0V1.2VKDC-MP235/MP235CR 0V2.4VKDC-135CR r Power supply IC (IC4) control SEL1 (Pin 10) PS1-2PS1-3PS2-1ILLUMIP-CONP-ANT LLLOFFOFFOFF LLHONOFFOFF HLHONONOFF HHHONONON SEL2 (Pin 11) PS1-1PS2-2AUDIO/SW5AM LLOFFOFF HLONOFF HHONON 8 KDC-MP208/MP238/MP238CR/MP239 KDC-MP30

39、39/MP339/MP339S/MP439 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 EJECT times. A symbol “” in the key column indicates that t

40、he 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. While “ ” is displayed, power can be turned ON for only 30 minutes. (KDC-MP238/MP439 only) All lamps blink when it is detected that the sub-clock resonator

41、 is disconnected. Do not display “CODE_OFF”, “CODE_ON” or “CODE_NG” when Power is ON. When having started 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

42、the E2PROM. When operating in the test mode, CD mechanism error log information clear mode, and DC offset 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

43、is prohibited in the test mode. How to clear the test mode ProcedureNote Reset, momentary power down, 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.

44、) Bass BoostOFF CRSCOFF regardless of having/not having the switching function. AUXON System QNATURAL (FLAT) PreoutRear TEST MODE 9 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 Special displays when all lights are on in STANDBY source KeyDescription of displayDescription CommonAll lig

45、hts ON.All lights ON. 1 Destination terminal condition indication TYPE : 11 “TYPE” indicates system -com (IC1) destination, and shows real-time condition of the destination terminal. Development ID condition indication 704A25 . 00Development ID Version (system -com: IC1) 2Serial No. display 00000000

46、Serial No. is displayed (8 digits) 3 Power ON time display PON0HXX 0050 is displayed for “XX”. When less than 1 hour, displayed by displayed by increments of 10 minutes. PONXXXXX0000110922 is displayed for “XXXXX”. MAX 10922 (hours) 3 When Power ON time is displayed, press and hold for 2 seconds or

47、longer to clear Power ON time. 4 Disc operation time 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

48、longer to clear the disc operation time. (Cleared only 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 PCXXXX

49、XPANEL 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 RO123The number is the ROM correction version number. ERRWhen E2PROM is not installed. RWhen not written in yet. RWhen data not matched. (due to the difference in versions) AMROM data transfer Audio data initialization AUDINITAUDIO setting value is re-set to the test mode default value. Forced Power OFF information display POFFNo forced power OF