Kenwood-DPXMP-4070-Service-Manual 电路图 维修手册.pdf

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1、 2004-7 PRINTED IN JAPAN B53-0190-00 (N) 1033 CD CASSETTE RECEIVER DPX-MP4070 DPX-MP4070B SERVICE MANUAL Depends on the model. Refer to the exploded view and parts list. REMOTE CONTROLLER ASSY (RC-505) (A70-2059-05) DC CORD ASSY (E30-6405-08) SCREW SET (N99-1724-05) BATTERY (Not supplied) RadioFans.

2、CN 收音机爱 好者资料库 DPX-MP4070/MP4070B 2 BLOCK DIAGRAM N-FAD REAR FRONT TU221IC301 SELECTOR INPUT IC101 E. VOL BASS/TRE/FADER IC12 PLL IC601 POWER AMP AUDIO 8V BU 5V ANT CONT LINE MUTE BU DET ACC DET ILLUMI P. CONT LED 11V IC2 SYSTEM RESET WOW IC103 -12.7dB (DPX-05MD) MD MECHA DRIVE CASSETTE MECHA IC351 C

3、D MECHA MAIN u-COM IC1 REMOTE IC921 IC901 LCD DRIVER LED KEYLCD TUNER CASSETTE MECHA DPX-04 DPX-3070 DPX-MP4070 DPX-3070 DPX-MP4070 DPX-04 CD CH AUX IN ANT PRE OUT DPX-MP4070 DPX-3070 SP OUT PRE OUT LINE MUTE ANT CONT P. CONT ILLUMI BU ACC (REAR/N-FAD) (FRONT) DPX-3070 DPX-MP4070 DPX-05MD DPX-3070 D

4、PX-MP4070 DPX-05MD DPX-MP4070 DPX-3070 DPX-3070 DPX-MP4070 DPX-05MD CONTROL UNIT MAIN UNIT S7V A8V BU5V D5V A3.3V SW3.3V BU3.3V BU2.5V CD PLAYER UNIT (X32-5500-01) IC1 MECHANISM CONTROL Q8 APC Q9,10 C-SW IC4 4ch BTL DRIVER M M DM1 DM2 SPINDLE MOTOR LOADING MOTOR & SLED S1 S2 IC9 DAC 3.3V AVR Q3,5,6

5、S3 S4 LEVEL SHIFT Q7 Q1,4 LEVEL SHIFT MICROPROCESSOR AVR BU 3.3V IC6 DAC 3.3V AVR IC7 SW 3.3V AVR IC5 LEVEL SHIFT IC3 MP3/WMA DECODER IC2 PROCESSOR RF AMP/SERVO CD SIGNAL BUFFER IC8 FO COIL TR COIL (OPTICAL PICKUP) A C F B E DPU1 LD PD CN2 CN1 15 DGND DATA CLK MUTER MUTEL MSTOP MRST 10 LOS 20 1 8EJE

6、 A8V L AGND DOUT R MOTOR LO/EJ 5 SGND S7V 12EJE LOE/LIM X2 16.00MHz 16.898MHz X1 OPEN D5 DGND D5 24 BU5 3 3 8 1 2 4 4 4 4 VREF SLD TRK FCS SPD 516 PON RadioFans.CN 收音机爱 好者资料库 DPX-MP4070/MP4070B 3 MAIN UNIT Ref. No.Application / FunctionOperation / Condition IC1MAIN -COMMain microcomputer IC2RESET IC

7、3MUTE IC4ROM COLLECTION IC5SECURITY ROM IC12PLLPLL for tuner IC101E-VOLElectric volume IC103WOW IC104WOW FOCUS IC301AUDIO SELECTORAudio switch for cassette and tuner IC351CASSETTE MOTOR DRIVERDriver for cassette motor IC601POWER ICOutput amplifier Q1RESET SW Q5FM VCC SW Q101E-VOL MUTE SW Q141WOW FOC

8、US SW Q221FM/AM VT DRIVER Q271,272PRE MUTE DRIVERMute switch for preout Q277PRE MUTE SW Q281,282PRE MUTE DRIVERMute switch for preout Q287PRE MUTE SW Q802805P. CON SW (P-ANT SW) Q806,807P-ANT SW Q808POWER IC STANDBY SW Q809BACK-UP DET SW Q810ACC DET SW Q811ILLUMI DET SW Q812BMS CONTROL DRIVERExterna

9、l amplifier driver Q813BACK-UP DET SW Q851P. ON SW Q852854S7.5V AVR7.5V power supply for CD mechanism Q855,856D5V AVR5V power supply for CD mechanism Q857,858BU5V AVR Q859SW5V SW Q860SW5V DRIVER Q861,862MOTOR+B SWPower supply for cassette motor Q863,864A8V AVR8V power supply for audio Q865P. ON-ILUL

10、MI SW Q866,867LED11V AVR11V power supply for LED Q868,869MAIN MOTOR+B SWPower supply for cassette main motor Q870P. ON SW COMPONENTS DESCRIPTION RadioFans.CN 收音机爱 好者资料库 DPX-MP4070/MP4070B 4 CONTROL UNIT Ref. No.Application / FunctionOperation / Condition IC901LCD DRIVERLCD driver IC921REMOTEReceives

11、 remote signal Q903RED LED SW Q904BLUE LED SW Q905GREEN LED SW Q906SECURITY INDICATOR SW Q921REMOTE SW EQUALIZER UNIT Ref. No.Application / FunctionOperation / Condition IC250DOLBY/EQUALIZERCassette audio equalizer CD PLAYER UNIT (X32-5500-01) Ref. No.Application / FunctionOperation / Condition Focu

12、sing, tracking, sled and spindle servo processing. Automatic IC1MECHANISM CONTROL MICRO PROCESSOR adjustment (Focusing, tracking, gain, offset and balance) operations. Digital signal processing (DSP, PLL, sub-codes, CIRC error correction, audio data interpolation) operations, and microcomputer funct

13、ion. Generation of RF signal based on the signals from the APC circuit and pickup, and generation of servo error (Focusing error and tracking error) IC2RF AMP/SERVO CD SIGNAL PROCESSORsignals. Detection of dropout, anti-shock, track crossing and off-track conditions, included gain control function d

14、uring CD-RW. IC3MP3/WMA DECODER IC44ch BTL DRIVER Focusing coil, tracking coil, spindle motor and sled motor driver, disc loading and eject operation. IC5SW 3.3V AVR IC6BU 3.3V AVR3.3V power supply for back-up. IC7BU 2.5V AVR2.5V power supply for back-up. IC8SELECTOR (SERIAL DATA)Serial audio data s

15、witch. IC9DAC 3.3V AVR3.3V power supply for IC2. Q1LEVEL SHIFT3.3V to 5.0V. Q3-7LEVEL SHIFT3.3V to 5.0V. Q8AUTOMATIC POWER CONTROLLD driver. Q9,10SWITCHSwitch for anticipation sub-beam delay. DPX-MP4070/MP4070B 5 MAIN -COM : MN101C49KWG (MAIN UNIT : IC1) Pin No. Active Pin NameI/OApplicationProcessi

16、ng Operation (H/L) 1VREF-com reference voltage () 2REEL SICassette mechanism reel rotation detection 3REEL TICassette mechanism reel rotation detection 4DC ERRIPower IC offset voltage observation 5LINE MUTEILine mute detection 6HACC DETIACC power supply detectionH : ACC OFF 7LILLUMI DETIDimmer illum

17、ination detectionL : ILUMMI ON 8JS1IDestination setting 3 9CD MECHA SELICD mechanism selection terminal H : MP3 CD mechanism L : NORMAL CD mechanism 10VREF+-com reference voltage (+) 11VDD-Power supply for -com 12OSC2-Main clock output 13OSC1-Main clock input 14VSS-GND for -com 15XI-Sub clock input

18、16XO-Sub clock output 17MMOD-Memory mode setting 18LX DATA MOData to slave unit 19LX DATA SIData from slave unit 20LX CLKI/OLX BUS clock 21LMODE1ICassette mechanism condition detection SW1H : Normal condition, L : Reset 22LMODE2ICassette mechanism condition detection SW2 23MODE3ICassette mechanism c

19、ondition detection SW3 24PWIC BEEPOBeep output 25NC- 26BU DETIMomentary power down detectionL : Normal condition, H : Momentary power down 27LX REQ SICommunication request from slave unit 28REMOIRemote control signal inputPulse width detection 29L DATA INIData input from LCD driver 30, 31NC- 32VDD2-

20、Power supply for -com 33NRST-com reset terminalL : Reset 34LCD BLIGHT ROLCD back light control (Red)PWM control 35NC- 36LCD BLIGHT BOLCD back light control (Blue)PWM control 37NC- 38L INHOTurns off LCD display MICROCOMPUTERS TERMINAL DESCRIPTION DPX-MP4070/MP4070B 6 Pin No. Active Pin NameI/OApplica

21、tionProcessing Operation (H/L) 39L CEOData latch to LCD driver 40LCD BLIGHT GOLCD back light control (Green)PWM control 41VPP-Power supply terminal for flash memory writing 42L DATA OUTOData output terminal to LCD driver 43L DATA INIData input from LCD driver 44L CLKOClock output terminal to LCD dri

22、ver 45SDAI/OE2PROM writing terminal 46NC- 47SCLI/OCD mechanism I2C clock output terminal 48ROMCOL WRI Presence-or-absence setting for ROM collection (E2PROM) 49LED SIOLED control for security indicator 50JS2IDestination setting 4 51TUN TYPE1IDestination setting 2 52TUN TYPE0IDestination setting 1 53

23、SUB M+OCassette mechanism sub motor control 54SUB M-OCassette mechanism sub motor control 55MS INIBetween-numbers detection signal inputL : Number exists 56HDOLBYODOLBY NRH : DOLBY NR ON 57HC MUTEOEqualizer muteH : MUTE ON 58LMETALOPlay-back equalizer switchL : METAL ON 59C F/ROHead input switchL :

24、Forward, H : Reverse 60MS MODEODetection sensitivity switchL : G1, H : G2 61TUN CEOTuner PLL data setting (CS) 62TUN DIITuner PLL data setting (DATA IN) 63TUN DOOTuner PLL data setting (DATA OUT) 64TUN CLKOTuner PLL data setting (CLOCK) 65SD/ST-INDIFront-end S-meter input During seek operation, H: N

25、umber exists During reception, H : Mono, L : Stereo 66CD DISC12 SWICD disk detection terminal (12cm) 67CD LOS SWICD loading detection terminal 68CD MUTE RICD mute (Rch) request terminalL : Rch mute request 69CD MUTE LICD mute (Lch) request terminalL : Lch mute request 70LCD MRSTOCD mechanism -com re

26、set terminalH : Normal condition, L : Reset 71LCD MSTOPOCD mechanism -com stop terminal H : Mechanism -com activates L : Mechanism -com stops 72CD DISC8 SWICD disk detection terminal (8cm) 73CD LOE LIM SWICD detection terminal (Chucking switch)H : Loading completes, L : No disk 74CD LOEJOCD motor co

27、ntrol terminal MICROCOMPUTERS TERMINAL DESCRIPTION DPX-MP4070/MP4070B 7 Pin No. Active Pin NameI/OApplicationProcessing Operation (H/L) 75CD MOTOROCD motor control terminal 76LSW MUTEOMute control for switchDuring mute : L 77NC- 78LPWIC STBYOPower IC standby control 79LPWIC MUTEOPower IC mute contro

28、lDuring momentary power down : H 80ES SWOXover filter select terminal 3 81ES SEL2OXover filter select terminal 2 82ES SEL1OXover filter select terminal 1 83HAUD MUTEOAudio mute control terminalH : MUTE ON 84WOW MODE3OWOW IC control terminal 3 85WOW MODE2OWOW IC control terminal 2 86WOW MODE1OWOW IC

29、control terminal 1 87WOW FocusOWOW IC control terminal 4 88SRC SEL1OIC2-5 input source switch 89BMS CTRLOExternal amplifier control 90HPON ILLOKey illumination control (Flash EPM)H : ON 91MOTOR+BOCassette mechanism main motor control 92HP ANTO Power antenna control terminal H : ANT ON, L : ANT OFF (

30、When P. CON is Hi only) 93HP CONOExternal amplifier current controlH : ON 94LMUTE ACOUTOMute on ACOUNT lineL : MUTE 95DAVSS-GND for -com 96HPONOPower supply controlH : ON 97SW5VOSW 5V controlH : ON 98HLX CONOStart-up request to slave unitH : SLAVE UNIT ON, L : SLAVE UNIT OFF 99LX REQ MOCommunication

31、 request to slave unit 100DAVDD-Power supply for -com KEY MATRIX TABLE KS1KS2KS3KS4KS5 KI13VOL+ LI22VOLSRCFM KI31ATTAM KI4WOW45CD EJRESET KI5EQ6TAPE EJDISP Multiple push Frequency step switch (K/M destination) : 1 + 5 + SRC After-sales service test mode in assembly line : ATT + WOW + SRC DC offset f

32、orced clear : DISP + EQ + SRC MICROCOMPUTERS TERMINAL DESCRIPTION DPX-MP4070/MP4070B 8 CD MECHANISM -COM : IC1 on X32- (CD PLAYER UNIT) Pin No. Active Pin NameI/OApplicationProcessing Operation (H/L) 1VREFL-Reference power supply input terminal for ADC (L).GND 2AVSS-GND terminal for ADC.GND 3AVCC-Po

33、wer supply terminal for ADC.Back-up 3.3V 4NC- 5L20RSTOReset control (Decoder).L : Reset, H : Normal condition 620ACKIAcknowledge signal input (Decoder). 720STBYOStandby control (Decoder).H : Standby, L : Normal condition 8,9NC- 1020INTIInterrupt signal input (Decoder). 11FOGUPIFocus gain-up interrup

34、t.H : Focus gain-up, L : Normal condition 12LZMI0 bit mute detection (Lch).L : MUTE OFF, H : MUTE ON 13RZMI0 bit mute detection (Rch).L : MUTE OFF, H : MUTE ON 14,15NC- 16L20CSOChip select signal output (Decoder). 17L20LPOLatch pulse signal output (Decoder). 1820TXD0I/OData output for serial data (D

35、ecoder).Except output condition, input condition is kept. 1920RXD0IData input for serial data (Decoder). 2020SCLK0OClock output for serial data (Decoder). 21DSPTXD1OData output for serial data (DSP). 22DSPRXD1IData input for serial data (DSP). 23DSPSCLK1OClock output for serial data (DSP). 24AM0-ROM

36、 mode selection terminal.H : Normal condition, L : External ROM mode 25DVCC-Back-up 3.3V. 26X2OResonator terminal.16MHz 27DVSS-GND. 28X1IResonator terminal.16MHz 29AM1I“H” condition is fixed.Back-up 3.3V 30LRESETIReset detection.L : Reset, H : Normal condition 3134CN- 35LDSPSTBOData strobe signal ou

37、tput (DSP). 36DSPA0O Command/Parameter identification signal outputH : Parameter data output, (DSP).L : Command data output 37LDSPRSTOReset control (DSP). 38DSPINTIInterrupt signal input (DSP).H : Interrupt 39NC- 40SEARCHOSearch condition output.H : Search, L : Normal condition 41LOE/LIM SWICD inner

38、 circumference detection switch.H : Inner circumference 4249NC- MICROCOMPUTERS TERMINAL DESCRIPTION DPX-MP4070/MP4070B 9 Pin No. Active Pin NameI/OApplicationProcessing Operation (H/L) 50FLAGINIC2Err impossibility detection. L : Correction is possible. H : Correction is impossible. 5161NC- 62DVSS-GN

39、D. 63LNMIINon-maskable interrupt request. 64DVCC-Power supply terminal. 6577NC- 78NC/BOOTIMask : Not connected. Flash : For writing (Active “L”).L : Write, H : Nomal condition 79,80NC- 81POND3.3ODigital 3.3V power-on control terminal.H : POWER ON 82LMUTELOLch audio mute control. 83LMUTERORch audio m

40、ute control. 84SDAI/OI2C data (Main -com). 85SCLI/OI2C clock (Main -com). 86LMSTOPIStand-by comeback interrupt.L : Stop, H : Stop is released. 87NC- 88LDMUTEODriver mute.L : MUTE ON, H : MUTE OFF 89DVCC-Power supply terminal. 90NC- 91DVSS-GND terminal. 92,93NC- 94MSELIMemory capacity switching termi

41、nal.H : Capacity size down, L : Capacity size up 95NC- 96ASELIAudio output polarity switch.H : Reverse output, L : Non-reverse output 97CHSELIChanger destination terminal.H : Changer, L : Other source 98SEL0I-com destination terminal 0. 99SEL1I-com destination terminal 1. 100VREFHIReference power su

42、pply input terminal for ADC (H).Back-up 3.3V DPX-MP4070/MP4070B 10 How to enter the test mode In order to enter the test mode, while pressing down ATT + WOW keys simultaneously, press SRC key. Test mode conditions The test mode starts up when STANDBY source is selected. The volume value is 10dB. (30

43、 on the display) Beep prohibited. All lights displayed. (3-color LED lights up for all three col- ors. (white lighting) WOW : OFF EQ : Natural Test mode (Source : CD) When starting disc loading, tracks will be played starting with the Track No. 9. The key operations below will be conducted only when

44、 the source is CD. Even when changes occur in the track number being played with the other sources, the play condition will persist. Preset 1 key for Track No. 19 Preset 2 key for Track No. 5 Preset 3 key for Track No. 15 Preset 4 key for Track No. 14 key is to be used for selecting preset tracks on

45、ly. (Re- fer to the table below.) key is to be used for down selection, as with regular operation. Current trackTrack to be searched No. 1No. 8, No. 14, No. 16MaxNo. 9 No. 9No. 15 No. 15No. 10 No. 10No. 11 No. 11No. 12 No. 12No. 13 No. 13No. 14 Test mode (EQ adjustment) While the source is being dis

46、played, clicking once on the EQ/AUD key will cause the unit to enter Adjustment Mode. When 1 key is pressed: Flat When 2 key is pressed : Full-boost When 3 key is pressed : Full-cut The settings for Q, Feq, and Ex are fixed. Q2.0 BassFeq150Hz ExtON Mid Q2.0 Feq1kHz TrebleFeq10kHz Test mode (Audio ad

47、justment) While the source is being displayed, long-clicking on the EQ/AUD key will cause the unit to enter Adjustment Mode. By toggling on the FM and AM key, the items below can be selected and adjustments can be made with and keys. The balance adjustment is set for three steps : RIGHT CENTER LEFT

48、(L15, R15) The fader adjustment is set for three steps : FRONT CENTER REAR (F15 and R15) Test mode (DC offset detection) When DC error detection is carried out during the Test Mode, the unit shuts down without writing the error information to the EEPROM. The other cases will be the same as the DC of

49、fset specifications. Test mode (Display of DC offset detection results) When in this mode, the mode for “Display of DC offset de- tection results” will be added in the MENU items at the time when Test Mode Standby is the source. This will make it possible to confirm results with presence-or-absence de- tection. MENU selection : DIMMER adjustment (NAVI ATT ON/OFF) (CODE STBY) Display of DC offset detec- tion results Display DC offset detected : DC Err DC offset not detected : DC OK The detection information in the EEPROM can be