Kenwood-DPX-502-U-Service-Manual(1) 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. Panel assy DPX502 (A64-4096-02) SUB WOOFER LEVEL CONTROL FRONT USB & AUX INPUT WMA MP3 AAC WAV PLAYBACK EXTERNAL MEDIA CONTROL DPX502 USB PTY/C.S. s SUB WOOFER LEVEL CONTROL FRONT USB & AUX INP

2、UT WMA MP3 AAC WAV PLAYBACK EXTERNAL MEDIA CONTROL DPX502U USB PTY SUB WOOFER LEVEL CONTROL FRONT USB & AUX INPUT WMA MP3 AAC WAV PLAYBACK EXTERNAL MEDIA CONTROL DPX-MP5100U USB Panel assy DPX502U/DPX502UY (A64-4098-02) Panel assy DPX-MP5100U (A64-4097-02) * Lever (D10-4589-04) x2 Remote controller

3、assy (RC-547) (A70-2085-05) Battery (Not supplied) * DC cord (E30-6428-05) * DC cord (E30-6671-05) Compact disc (W01-1704-05) * Adhesive double-coated tape (H30-0595-04) * Screw set (N99-1779-05) * Mounting hardware assy (J22-0429-13) * Escutcheon (B07-3172-12) * Escutcheon assy (B07-3046-04) * Escu

4、tcheon (B07-3165-02) CD/USB RECEIVER DPX502 DPX502U/DPX502UY DPX-MP5100U SERVICE MANUAL 2007-7 PRINTED IN JA PAN B53-0556-00 (N) 521 RadioFans.CN 收音机爱 好者资料库 2 DPX502/502U/502UY DPX-MP5100U BLOCK DIAGRAM E2PROM FST FM/AM CH(ISO IN) CD OFFSET MPX for RDS RST PRE MUTE MUTE USB I/F for SOC 215 AUX (ISO

5、IN) I2SI2S MUTEMUTE STBY WIN IN FRONT-END A500 LX BUS E-VOL PRE OUT PRE OUT IC400 IC500 IC100 UP BACK RESET ICBU5V P-CON ANT-CON ACC DET DIMMER SURGE DET BU DET Q3,4 BU 5V SW 20V Q8,9 Q10-12 ILL+B SW 14V A8V SERVO Q5,7 SW 5V Q13,14 P. CON ANT CON DIMMER ACC BACK UP LINE SP OUT(FR) SP OUT(RL) SP OUT(

6、FL) SP OUT(RR) REMOTE (FRONT) (REAR/SW) WIRED TEL MUTE IC101 USB5V USB5V BU5V SW MUTE ILLUMI+B CN REMOTE IC1 ED1 FL+B R224 J200 S3 S1 R24-26 Q52,56 Q53,56 Q59 Q57 C57,R62,D58 Q59 Q51 Q1,2,16 Q6,17 PANEL 5V Q15 AM+B Q500,501 SW 14V FDC USB 5V SW HI-SIDE SERVO IC1 IC200 Q6,17 IC103 CN202 J600 J1 Q600,

7、602,605,607Q601,606 DRIVER MUTE CONNECTOR 5P MUTE PRE POWER IC SYSTEM u-COM ENCODER ROTARY ILLUMI KEYKEY MATRIX 1/2W 1/2W Rx3 (with DRIVER) FL RESET SW PANEL5V ROM MEMORY & INSTALLER DECODER RDS CORRECTION J601 SW5V AM+B A8V D5V DAC 2ch LPF IC705 IC704 A8V DME1 SOC IC711 DIR D1.8V SD RAM NOR FLASH S

8、HIFT LEVEL D5V IC703 IC716 IC712 D3.3V IC714 IC715 IC300 IC700 IC102 SERVO MECHA CD D 5V SW ILLUMI+B Q18 D 3.3V IC708 D5V USB CN J1 AUX CN CN1 IC709,710 SHIFT LEVEL SWITCH UNIT (X16- ) ELECTRIC UNIT (X34- ) (X15- ) RadioFans.CN 收音机爱 好者资料库 3 DPX502/502U/502UY DPX-MP5100U BLOCK DIAGRAM DPU1 CD PLAYER

9、UNIT (X32-598x-xx) BOARD (X34- ) MOTHER EF A C B TR COIL FO COIL APC IC1 16.93MHz CLOCK IC6 8V SW3.3V REG IC3 LOADING & RF AMP SERVO PROCESSOR MOTOR DRIVER MOTOR SPINDLE 3.3V REG IC2 S2 S4 S1 S3 + + ONLY SLED MOTOR DM1 DM2 Q1 X2 Q7 PROCESSOR MICRO 1 CHIP IC LEVEL SHIFT LEVEL SHIFT LEVEL SHIFT Q3 Q3

10、Q4 (0-00),(0-01) ONLY SW Q2 SW Q8,9 3.3V SW Q6 SW (0-01),(0-03) ONLY (0-00),(0-01) X1 or VREF D.GND BU5V 8EJE-SW 12EJE-SW LOS-SW LOE/LIM-SW D.GND MOTOR LO/EJ S.GND D.GND D.GND S.GND A.GND AS8V R-ch L-ch S.GND DMUTE A,B,C,E,F VREF TR OUT FO OUT DM OUT FM OUT TVD,SPL FOD,TRD, DATA CLK MSTOP RST MUTE M

11、UTE CLK DATA MSTOP MRST D.GND S7V AVDD REGVDD P-ON1 IOVDD RadioFans.CN 收音机爱 好者资料库 4 DPX502/502U/502UY DPX-MP5100U ELECTRIC UNIT (X34-560 x-xx) Ref. No.Application / FunctionOperation / Condition / Compatibility IC1SW RegulatorOutputs 5.0V. Power supply for D5V, FL+B and USB5V IC2A8V REF Power Supply

12、Outputs 1.27V IC100Reset ICLo when detection voltage goes below 3.6V IC101E2PROMFor installer memory and ROM correction IC102System -COMControls FM/AM tuner, the changer, CD mechanism, USB, panel, volume and tone IC103Muting Logic ICControls muting logic IC200Hi-side SW Over-current protection of US

13、B power supply When pin1 goes Hi , USB5V is ON IC300E-VOLControls the source, volume and tone IC400Power IC Amplifi es the front L/R and the rear L/R to maximum 50W IC500RDS DecoderFor RDS IC700D/A ConverterFor CD and USB Source IC702iPod Authentication CoprocessorFor iPod authentication IC703Digita

14、l Audio ReceiverFor CD source IC704OP-AMPLPF IC705Point RegulatorOutputs 5.0V. Power supply for D/A converter IC708DC Voltage RegulatorOutputs 3.3V. Power supply for 3.3V IC709,710Inverted 3-State OutputIt converts 3.3V to 5V IC711System On Chip It can decode MP3 or other types fi le of audio/decomp

15、ression standards by software based architecture IC712Quad 2-Input AND GateIt converts 5V to 3.3V IC714SD RAMFor System On Chip (IC711) IC715NOR Flash ROMFor System On Chip (IC711) IC716LDO RegulatorOutputs 1.8V. Power supply for System On Chip (IC711) Q1,2,16AUDIO8V AVRWhen Q16s base goes Hi, A8V A

16、VR outputs 8.0V Q3,4BU5V AVRWhile BU is applied, BU5V AVR outputs +5V Q5,7SERVO+B AVRWhen Q7s base goes Hi, SERVO+B AVR outputs 7.5V Q6,17SW14VWhen Q17s base goes Hi, SW14V outputs 14V Q8,9Serge Protect for IC1Outputs 20V when BU is over 20V Q1012,18ILL+B AVRWhen Q18s base goes Hi, ILL+B outputs 10.

17、5V Q13,14SW5VWhen Q14s base goes Hi, SW5V outputs +5V Q15PANEL 5VWhen the base goes Lo, PANEL 5V outputs 5V Q50,58P-CON SWWhen Q50s base goes Hi, AVR outputs 14V Q51BU DETWhen the base goes Hi, Q51 is turned ON Q52,54P-CON Protection When P-CON output voltage decrease is detected, output protection

18、is made. When P-CON SW is ON, malfunction of Q58 is protected Q53,56P-ANT SWWhen Q53s base goes Hi, P-ANT SW outputs 14V Q57ACC DETWhen the base goes Hi, Q57 is turned on Q59Serge DETWhen the base goes Hi, BU DET is turned off Q60Small Lamp DET SWWhen the base goes Hi, Q60 is turned on Q500,501AM+BW

19、hen Q501s base goes Hi, AM+B is output COMPONENTS DESCRIPTION 5 DPX502/502U/502UY DPX-MP5100U Ref. No.Application / FunctionOperation / Condition / Compatibility Q601,606Pre-out Mute DriverWhen a base goes Lo, mute driver is turned on Q600,602,605,607Pre-out Mute SWWhen a base goes Hi, pre-out is mu

20、ted Q704,706M-RST ConverterIt converts 3.3V to 5V SWITCH UNIT (X16-614x-xx) Ref. No.Application / FunctionOperation / Condition / Compatibility IC1Remote Control IC Q1-3Grid DriverWhen each transistors base is Lo, grid is ON Q12VFD RestartIn condition of the base is Hi, key-scan starts at the same t

21、ime as POWER_ON CD PLAYER UNIT (X32-5980-02) Ref. No.Application / FunctionOperation / Condition / Compatibility IC1 CD Signal Processor & MECHA -COM RF Amplifi er responding to CD-RW Focusing, tracking, sled and spindle servo processing.Automatic adjustment (focusing, tracking, gain, offset and bal

22、ance) operations. Digital signal processing (DSP, PLL, sub-codes, CIRC error correction, audio data interpolation processing) operations, and microcomputer function. Generation of RF signal based on the signals from the APC circuit and the laser pick-up, and generation of servo error (focusing error

23、 and tracking error) signals. Detection of dropout, anti-shock, track crossing and off-tracking conditions, included gain control function during CD-RW. IC23.3V REGSupplies 3.3V to IC1 and the laser pick-up. IC64ch BTL DriverFocusing and tracking coil, sled and spindle motor driver, disc loading and

24、 eject operation. Q35V-3.3V Level ShiftShifts 5V to 3.3V, or 3.3V to 5V. Q6BU3.3V SWQ6 is ON when Q8 or Q9 is ON. Q7APC (Auto Power Control)Drives LD (Laser Diode). Q8Power Supply ControlPower Supply Control from MECHA -COM. Q6 is ON when pin 63 (P ON1) of IC1 is Hi. Q9Power Supply ControlPower Supp

25、ly Control from system -COM. Q6 is ON when pin 125 (MSTOP) of IC1 is Hi. D1,25V Force Voltage Prevention5V Force Voltage Prevention from MECHA -COM side. D3Laser Diode ProtectionPrevents reverse bias which is applied to laser. Laser destruction prevention. COMPONENTS DESCRIPTION 6 DPX502/502U/502UY

26、DPX-MP5100U MICROCOMPUTERS TERMINAL DESCRIPTION SYSTEM -COM: IC102 on X34- (ELECTRIC UNIT) Pin No.Pin NameI/OApplication Truth Value Table Processing / Operation / Description 1REMOI External display remote control input and panel remote control input 2LX REQ MOCommunication request to slave unit 3L

27、X MUTEIMute request from slave unitH: Mute ON, L: Mute OFF 4LX CONOStart-up request to slave unitH: Slave unit ON, L: Slave unit OFF 5LX RSTOForced reset to slave unitH: Reset, L: Normal 6BYTE-GND 7CNVSS-Pull-down 8XCIN-Sub clock (32.768kHz) 9XCOUT-Sub clock (32.768kHz) 10RESET- 11XOUT-Main clock (1

28、2.00MHz) 12VSS-GND 13XIN-Main clock (12.00MHz) 14VCC1- 15NMI-Pull-up 16LX REQ SICommunication request from slave unit 17RDS CLKIRDS decoder clock input 18NC-Not used Output L fi xed 19PON AMI/O AM power supply controlReceiving AM: H, Not receiving AM: HI-Z 20TUN IFC OUTIFront-end IFC OUT inputH: Sta

29、tion found, L: No station 21RDS AFS MI/O Noise detection time constant switching 22RDS QUALIRDS decoder QUAL input 23RDS DATAIRDS decoder data input 24USB SYNCOClock output for SW-REG 25NC-Not used Output L fi xed 26PWIC BEEPOBeep output 27TUN SCLI/O Front-end I2C clock input/outputMAX. 400kHz 28TUN

30、 SDAI/O Front-end I2C data input/output 29VFD DATAI/O VFD data input/outputData input/output 30VFD INTIVFD INT inputINT input 31VFD CLKOVFD clock output (125kHz) 32VFD RSTOVFD reset H: Reset released, L: Reset Momentary power down, Panel detached, 11 minute after ACC OFF: L 33S SYS DATAOData output

31、from system -com to SOC 34S SOC DATAIData input from SOC to system -com 35S SOC SCLIClock input from SOC to system -com 3638NC-Not used Output L fi xed 39ROMCOR DETIE2PROM writing requestH: Writing 7 DPX502/502U/502UY DPX-MP5100U Pin No.Pin NameI/OApplication Truth Value Table Processing / Operation

32、 / Description 40NC-Not used Output L fi xed 41CD DISC12 SWI12cm-disc detection 42CD LOS SWICD loading detection 43CD MUTEICD mute requestL: Mute request, H: Normal 44VFD CSOVFD control requestH: VFD data can be transferred 45SOC S RSTOSOC resetH: Normal, L: Reset 46SOC S STOPOSOC stopH: Normal, L:

33、SOC stopped 47CD DISC8 SWI8cm-disc detection 48CD LOE LIM SWICD detection (Chucking SW)H: Loading completed, L: No disc 49CD LOEJI/O CD motor controlqRefer to the truth value table 50CD MOTOROCD motor controlqRefer to the truth value table 51ROTARY CWIVOL key detectionDetects pulse width 52ROTARY CC

34、WIVOL key detectionDetects pulse width 53PON PANELI/O Panel 5V power supply control ON (For 11 minutes after ACC OFF): L Momentary power down, panel detached, 11 minute after ACC OFF: Hi-Z 54PON FL+B I/O FL display fi lament power supply controlH: ON, Hi-Z: OFF 55SW USBI/O V-BUS 5V control H: ON, Hi

35、-Z: OFF Depends on command from SOC 56NC-Not used Output L fi xed 57PON ILLOKey illumination power supplyH: Power ON, L: Power OFF 58,59NC-Not used Output L fi xed 60VCC2- 61PONOPower supply controlH: Power ON, L: Power OFF 62VSS-GND 63TYPE 1IDestination switchingwRefer to the truth value table 64TY

36、PE 2IDestination switchingwRefer to the truth value table 65NC-Not used Output L fi xed 66PCONO External amplifi er control 6769NC-Not used Output L fi xed 70ANT CONOPower antenna controlTuner ON: H 71NC-Not used Output L fi xed 72ACC DETIACC power supply detectionACC found: L, No ACC: H 73BU DETIMo

37、mentary power-down detectionBU found: L, Momentary power down: H 74ILLUMI DETIDimmer illumination detectionL: ON, H: OFF 75S SYS REQO Communication request from system -com to SOC 76S SOC REQI Communication request from SOC to system -com 77PWIC MUTEOPower IC mute control 78PWIC STBYOPower IC standb

38、y control MICROCOMPUTERS TERMINAL DESCRIPTION 8 DPX502/502U/502UY DPX-MP5100U Pin No.Pin NameI/OApplication Truth Value Table Processing / Operation / Description 79LINE MUTEILine mute detectionTEL mute: Below 1V, NAVI mute: Over 2.5V 80PWIC DC DETIDC offset detection 81IC2 SDAI/O I2C data input/out

39、put 82IC2 SCLI/O I2C clock input/output 83NC-Not used Output L fi xed 84MUTE AFSI/O AFS muteL: Mute ON, HI-Z: Mute OFF (European model) 85MUTE 0OE-VOL front muteL: ON, H: OFF 86MUTE 1OE-VOL rear muteL: ON, H: OFF 87MUTE 2OE-VOL SW muteL: ON, H: OFF 88MUTE PRE FROPre-out mute FR L when mute is L (CD

40、playing), momentary power down: L Dual Zone: H fi xed 89MUTE PRE SWOPre-out mute SWL: Mute, H: Mute OFF 90,91NC-Not used Output L fi xed 92RDS NOISEIFM noise detection 93TUN SMETERIS-meter input 94AVSS-GND 95NC-Not used Output L fi xed 96VREF- 97AVCC- 98LX DATA SIData from slave unit 99LX DATA MODat

41、a to slave unit 100LX CLKI/O LX-BUS clock Truth value table q CD motor control CD MOTOR (Pin50)CD LOEJ (Pin49) StopLL LoadHL EjectHH BrakeHHi-Z w Destination switching TYPE 2 (Pin64) TYPE 1 (Pin63)MODELDESTI. 0V5VDPX502K 1.5V5VDPX-MP5100UM 2.5V5VDPX502UE 3.4V5VDPX502UYE2 5V0VDPX-U77J MICROCOMPUTERS

42、TERMINAL DESCRIPTION 9 DPX502/502U/502UY DPX-MP5100U TEST MODE How to enter the test mode Press and hold the 1 and 3 keys and reset. (While “ ” is being displayed, power can be ON for 30 minutes.) How to clear the test mode Reset, momentary power down, Acc OFF, Power OFF, detach the panel. Test mode

43、 default condition Source is STANDBY. Display lights are all turned on. The volume is at 30 (-10dB). LOUD is OFF. CRSC is off regardless of the availability of switching function. SYSTEM Q is NATURAL (=FLAT). BEEP should always function when the key is pressed briefl y. AUX is ON. Speciication of th

44、e test mode for tuner sourse The frequency of 98.3MHz is received when the 4 key is pressed in the TUNER FM mode Specifi cation of FST soft mute adjustment mode 1. Receive the TUNER FM mode in the VOLUME 30 and LOUD OFF condition. 2. Press and hold the key for 2 seconds to enter the FST soft mute ad

45、justment mode. 3. In the adjustment mode, the following display is shown. Adjust the mute between 0 (18dBu) and F (36dBu) with the FM / AM keys. (Display) SMDx_ _ _ (Adjustment value, 0F is displayed in “x”). 4. When the adjustment is “OK”, press and hold the key for 2 seconds again to write the adj

46、ustment value in the E2PROM, and after the successful writing-in the “EP_WRITE” is displayed. 5. Press the key briefl y to exit from the FST soft mute adjustment mode. (The test mode continues.) Special display in tuner mode Error is found in front-end, etc. if indications below are displayed while

47、in tuner mode. “TNE2P_NG” : E2PROM (in front-end: A500 of X34-) values are still default (not determined) “TNCON_NG” : Cannot communicate with the front-end. RDS/RBDS automatic measurement Add the process to replace the visual inspection of PS display previously done in the production line. When it

48、is confi rmed that the PS data has been received and that the content of the PS is “RDS_TEST”, force to OFF the P-CON terminal. ( The symbol, “_” indicates the blank. ) Make this as the process dedicated for the test mode. P-CON is recovered by Power OFFON. K3I forced switching Every time when 6 key

49、 is pressed in tuner FM mode, switched in the following order: AUTOForced WIDE Forced MIDDLEForced NARROWAUTO. Default status is AUTO, and displayed as shown below. AUTO: FM1_98.1A Forced WIDE: FM1_98.1W Forced MIDDLE: FM1_98.1M Forced NARROW: FM1_98.1N CD source test mode specifi cation Display mode default setting shall be P-TIME. Jumps to the following tracks by pressing the key. No.9No.15No.10No.11No.12No.13No.22 No.14No.9 (recursive) Note that when playing a CD-DA disc and MP3 / WMA / AAC / WAV discs wi