Kenwood-KDCBT-742-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. KDC-BT6544U/UY KDC-BT7043U KDC-BT742U SERVICE MANUAL 2009-1 PRINTED IN JA PAN B53-0698-00 (N) 429 CD RECEIVER TDF SPARE-PANEL MAIN UNIT NAMETDF PARTS No.TDF NAME KDC-BT6544UY33-3072-71TDF-BT654

2、4U KDC-BT6544UYY33-3072-71TDF-BT6544U KDC-BT7043UY33-3070-21TDF-BT7043U KDC-BT742UY33-3070-10TDF-BT97D Panel assy KDC-BT742U (A64-4735-02) Panel assy KDC-BT6544U/UY (A64-4736-02) Panel assy KDC-BT7043U (A64-4738-02) Mounting hardware assy (J22-0789-03) Lever (D10-7049-04) x2 * DC cord (E30-6428-05)

3、* Screw set (N99-1757-15) * Escutcheon (B07-xxxx-xx) * Carrying case (W01-1710-05) * Screw (4x16) (N84-4016-48) Remote controller assy (RC-547) (A70-2085-15) Battery (Not supplied) * Plastic cabinet assy (A02-2755-23) * DC cord (E30-6671-05) KDC-BT742U Bluetooth KDC-BT6544U Bluetooth KDC-BT7043U Blu

4、etooth * Depends on the model. Refer to the parts list. RadioFans.CN 收音机爱 好者资料库 2 KDC-BT6544U/BT6544UY /BT7043U/BT742U BLOCK DIAGRAM SWITCH UNIT (X16- ) CD MECHA ELECTRIC UNIT (X34- ) (X92-6360-00) FRONT-END A480 or A481 LX BUS E-VOL PRE OUT PRE OUT PRE OUT IC200 IC500 IC301 UP BACK RESET IC BU5V P-

5、CON ANT-CON ACC DET DIMMER SURGE DET BU DET Q32,33 BU5V Q50-53 ILLUMI+B A8V SERVO Q40-43 SW5V Q30,31 P. CON ANT CON DIMMER ACC BACK UP LINE MUTE SP OUT (FR) SP OUT (RL) SP OUT (FL) SP OUT (RR) REMOTE (SW) (FRONT) (REAR) WIRED TEL MUTE USB5V BU5V SW MUTE ILLUMI+B CN REMOTE SW5V IC2 ED1 J1 J520 S3S1 7

6、5 Q110-113 Q114,115 Q130 Q92 D130 Q93 Q90 IC10 Q520 AM+B Q480,481 SW HI-SIDE SERVO IC70 IC150 +B 4V-PRE Q81-83 DSP5V IC303 J420 J1 WH160 Q441,461 DRIVER MUTE MUTE PRE POWER IC SYSTEM u-COM ENCODER ROTARY (LED) KEY ILLUMIKEY MATRIX 1/2W Rx2 (with DRIVER) FL RESET SW PAN DET PAN5V DECODER RDS J400 SW5

7、V AM+B A8V DME1 SERVO IC260 IC302 A4V D5V PAN5V BU5V A8V AM+B SW5V PAN5V FDC BT3.3VBT3.3V IC601 Q20-23 PRE+B DSP5V 460,462 450,451, Q440,442, DSP IC240 ILLUMI+B A8V PRE+B DSP5V IC241 MEMORY SW5V X92-6320-00 or X92-6360-00 BU5V A600 MODULE BLUETOOTHIC600 LPF BT3.3V A8V USB5V MIC CN1 FDC R74, Q5,21 US

8、B CNAUX J3 USB u-COM AUTHENTICATION iPod LEVEL SHIFT 3.3V ROM CORRECTION 5V J4 E2PROM FST FM/AM AUX (ISO IN) CH (ISO IN) MD OFFSET MPX for RDS RST PRE MUTE MUTE 25 P-IC MUTE STBY MUTE DC ERRDC DET WININ AC OUT AC IN I2CI2C CD 3 (W/O USB MODEL) (USB MODEL ONLY) R520 GND 2 14-SEG 13-DIGIT RadioFans.CN

9、 收音机爱 好者资料库 3 KDC-BT6544U/BT6544UY /BT7043U/BT742U BLOCK DIAGRAM BU1.5V BU3.3V SW3.3V DPU1 CD PLAYER UNIT (X32-6260-00) BOARD MOTHER (X34- ) EF A C B TR COIL FO COIL APC IC2 16.934MHz CLOCK IC3 LOADING & MOTOR DRIVER MOTOR SPINDLE S2 S1 S3 SLED MOTOR DM1 DM2 X3 Q7 RF AMP SERVO MP3 DECODER WMA DECODE

10、R 1Mbit SRAM PROCESSOR AAC DECODER + + + + + LEVEL SHIFT IC5 iPod IC7 REG BU3.3 / AUTHENTICATION LEVEL IC6 SHIFT IC1 u-COM Q5 SW BU1.5V IC9 SW3.3V REG Q3 SW CLOCK 9.000MHz X1 32.768kHz CLOCK X2 IC4 INV Q9 MECHANISM VREF 12EJE SW LOS SW LOE SW MOTOR LO/EJ AGND TRO FOO DMO FMO LD SIGNAL A/B/C/E/F S.GN

11、D S7.5V FOO TRO DMO FMO CD DRIVE MUTE SO SRAMSTB SI BUCK CCE CD REQ MSTOP BUCK CCE REQ SO SI RST MRST Lch Rch Z DET MUTE L/R DGND DVSS BU1.5V SW1.5V D3.3V BU5V PD VBUS SW USB+ VBUS OC USB- DATA SCD SI REQ A MRST MSTOP CLK CD MUTE REQ M DATA M USB D+ USB D- USB VBUS SW USB OC CD LOE LIM SW RVIN1/RVIN

12、2 DVCC3B PON DVSS DVCC3A PWE CD SO DSP REQ CD CLK CD RST ZDET IN CD SRAMSTB CE BSIF LRCK BSIF DATA BSIF BCK BSIF GATE BSIF ST REQ IPOD SDA IPOD SCL AVSS A3.3V LO RO BSIF ST REQ BSIF GATE BSIF DATA BSIF BCK BSIF LRCK G D S RadioFans.CN 收音机爱 好者资料库 4 KDC-BT6544U/BT6544UY /BT7043U/BT742U ELECTRIC UNIT (

13、X34-629x-xx) Ref. No.Application / FunctionOperation / Condition / Compatibility IC10Audio 8V REF / Power SupplyOutputs 1.27V. IC70Digital AVR for Panel & USBSwitching regulator for USB&VBUS and FDC (5V). IC150Power Control SWUSB power control switch with over current detection and protection. IC200

14、Power IC Amplifi es front L/R and rear L/R. IC240DSPDigital signal processor. IC241E2P MemoryDSP setting memory. IC260Source Selector & E-VOL Selects analog source & full source volume. Analog source: AM/FM, CH, AUX. Digital source is selected by CD mecha. (CD/USB) Speaker-out “DC-offset” detection

15、and protection. (This function consists of IC260 and IC200) IC301System -COM Reset ControlOutputs Lo (system -COM reset) when detection voltage goes below 3.6V. IC302System -COM System control including power management, panel control, AM/FM/CH/SOC control, external control and etc. IC303Mute LogicC

16、ontrols logic for muting. IC500RDS & RBDS Decoder IC600Bluetooth MIC Buffer MIC signal differential amplifi er. IC601Bluetooth Module 3.3V AVRDuring active time, POWER is ON. Q1012Audio 8V AVRDuring active time, POWER is ON. Q2023DSP5V AVRWhen the base of Q23 goes Hi, DSP5V AVR is ON. Q30,31SW5VDuri

17、ng active time, POWER is ON. Q32,33BU5V AVRDuring active time, POWER is ON. Q4043Servo AVRDuring active time, POWER is ON. Q5053ILLUMI AVRDuring active time, POWER is ON. Q90BU DET SWDetects the backup voltage. If the backup is detected, it is ON. Q92ACC DET SWDetects ACC voltage. If ACC is detected

18、, it is ON. Q93Surge DET SWDetects over-input voltage. If surge is detected, it is ON. Q110113Power Cntrol Output When the base of Q110 goes Hi, power control output is ON. During active time, audio source is active. Q114,115Power ANT SWDuring active time, tuner source is active. Q130Small Lamp DET

19、SWDetects small lamp. If small lamp is detected, it in ON. Q170Level ShiftSysytem -COM (5V) Bluetooth module (3.3V) Q440Preout Mute SWNon-fader Lch Q441Preout Mute Driver(Non-fader) When this transistor is ON, mute is active. Q442Preout Mute SWNon-fader Rch Q450Preout Mute SWFront Lch Q451Preout Mut

20、e SWFront Rch Q460Preout Mute SWRear Lch Q461Preout Mute Driver(F/R) When this transistor is ON, mute is active. Q462Preout Mute SWRear Rch Q480,481AM+B SWDuring active time, AM source is active. Q520PAN5V SWWhen the base goes Lo, PAN5V is ON. Q601Bluetooth Module ResetWhen the base goes Hi, Bluetoo

21、th module is reset. COMPONENTS DESCRIPTION 5 KDC-BT6544U/BT6544UY /BT7043U/BT742U SWITCH UNIT (X16-6500-21) Ref. No.Application / FunctionOperation / Condition / Compatibility IC2Remote ControllerRemote control receiver. Q5PAN5VWhen the base goes Hi, PAN5V is supplied for IC2. Q20Key Scan Timing Adj

22、ustmentWhen the base goes Hi, key scan starts. Q21PAN5VWhen the base of Q5 goes Hi, PAN5V is supplied for IC2. Q22Grid Reversing DriverWhen the base goes Hi, GRID1 is ON. Q23Grid Reversing DriverWhen the base goes Hi, GRID2 is ON. Q24Grid Reversing DriverWhen the base goes Hi, GRID3 is ON. Q51Left S

23、ub-ILLUMI ControllerWhen the base goes Hi, left sub-illumination is ON. Q52Center 3-key ILLUMI ControllerWhen the base goes Hi, center 3-key illuminations are ON. Q53Right Sub-ILLUMI ControllerWhen the base goes Hi, right sub-illuminations are ON. CD PLAYER UNIT (X32-6260-00) Ref. No.Application / F

24、unctionOperation / Condition / Compatibility IC1Mechanism -COM Controls DSP and peripheral circuit. USB host controller. (Compliant with Universal Serial Bus Specifi cation Rev2.0) IC2Servo DSP with Built-in Audio DAC Built-in MP3WMAAAC decoder. Built-in 1M-bit-SRAM. IC34ch BTL Driver Driver for foc

25、using & tracking coil, driver for sled & spindle motor, and operation for disc loading & ejection. IC4iPod Authentication Connection authentication for iPod. MFI341S2162: iPhone-compliant. IC53.3V5.0V Level ShiftConverts communication signal from 3.3V to 5.0V. IC65.0V3.3V Level ShiftConverts communi

26、cation signal from 5.0V to 3.3V. IC7BU1.5V / BU3.3V Regulator Power supply for digital back-up. Power supply for mechanism -COM. IC8E2PROM Memory for ROM correction. Countermeasure for software malfunction. IC9A3.3V RegulatorPower supply for digital, analog and audio line. Q3D1.5V Output The output

27、voltage in which the power supply that diverges from the BU1.5V line is turned on and off is used as D1.5V. Q5B.3.3V Output The output voltage in which the power supply that diverges from the BU3.3V line is turned on and off is used as D3.3V. Q6Control signal InverterControls Q5. Q7APC (Auto Power C

28、ontrol)Laser diode driver. Q9Control signal Inverter Because the detection logic of LOE/LIM_SW is different in the mechanism -COM and the system -COM, the logic to the mechanism -COM side is reversed. D1Laser Diode Protection Prevents reverse bias which is applied to laser. Laser destruction prevent

29、ion. D2,3Countermeasure against Static Electricity The potential difference between DGND and AGND is absorbed, and the malfunction by static electricity is prevented. COMPONENTS DESCRIPTION 6 KDC-BT6544U/BT6544UY /BT7043U/BT742U MICROCOMPUTERS TERMINAL DESCRIPTION SYSTEM -COM: IC302 on X34- (ELECTRI

30、C UNIT) Pin No.Pin NameI/OApplication Truth Value Table Processing / Operation / Description 1REMOI External remote control input and panel remote control input 2LX REQ MOCommunication request to slave unit 3B SYS DATAOSerial output to Bolero 4B MECHA DATAISerial input from Bolero 5B MECHA CLKISeria

31、l clock input from Bolero 6BYTE- 7CNVSS- 8XCIN-Sub clock 32.768kHz 9XCOUT-Sub clock 32.768kHz 10RESET- 11XOUT-Main clock 12.00MHz 12VSS- 13XIN-Main clock 12.00MHz 14VCC1- 15NMI- 16LX REQ SICommunication request from slave unit 17RDS CLKIRDS decoder clock input(Terminal for European model) 18PANEL DE

32、TIPanel connector detached/attached detectionH: Panel detached, L: Panel attached 19PON AMI/OAM power supply controlAM operated: H, AM not operated: Hi-Z 20TUN IFC OUTIFront-end IFC-OUT inputH: Station found, L: No station 21RDS AFS MI/ONoise detection time constant SW(Terminal for European model) 2

33、2RDS QUALI/O RDS decoder qualifi cation input(Terminal for European model) 23RDS DATAIRDS decoder data input(Terminal for European model) 24V SYNC-Not used Output L fi xed 25NC-Not used Output L fi xed 26PWIC BEEPOBeep output2kHz/1kHz (Model with Bluetooth) 27TUN SCLI/OFront-end I2C clock input/outp

34、utMAX 400kHz 28TUN SDAI/OFront-end I2C data input/output 29VFD DATAI/OVFD data input/output 30ROTARY CWIVOL key detection (Clockwise) Detects pulse width TDF: 15-pulse/360, 2-click/1-pulse 31VFD CLKOVFD clock output125kHz 32VFD RSTOVFD reset H: Reset released, L: Reset Momentary power-down or panel

35、detached or 11 minutes after ACC OFF: L 33BT SYS DATAOData output to Bluetooth 34BT BT DATAIData input from Bluetooth 35,36NC-Not used Output L fi xed 37PON D5VI/OSW-REG controlH: ON, Hi-Z: OFF 38NC-Not used Output L fi xed 39ROMCOR DETIE2PROM writing requestH: Writing 40PDNOSimple DSP power downH:

36、ON, L: OFF 41DFZ MUTEIMute request from simple DSPL: Mute request 7 KDC-BT6544U/BT6544UY /BT7043U/BT742U Pin No.Pin NameI/OApplication Truth Value Table Processing / Operation / Description 42ROTARY CCWIVOL key detection (Counterclockwise) Detects pulse width TDF: 15-pulse/360, 2-click/1-pulse 43NC-

37、Not used Output L fi xed 44VFD CSOVFD control requestH: Possible to transfer VFD data 45BT RSTOBluetooth module resetL: Normal, H: Bluetooth reset 46VFD INTIVFD-INT input 47NC-Not used Output L fi xed 48PON PANELI/OPanel 5V power supply control ON (For 11 minutes after ACC OFF): L Momentary power-do

38、wn or panel detached or 11 minutes after ACC OFF: Hi-Z 49PONOPower supply controlH: Power supply ON, L: Power supply OFF 50CD DISC12 SWI12cm disc detection 51CD LOS SWICD loading detection 52MECHA STOPOSOC (System On Chip) stopH: Normal, L: SOC stopped 52CD PONOCD mechanism power supply controlH: ON

39、, L: OFF 53CD MUTEICD Mute requestL: Mute request, H: Normal 54S MECHA REQI Communication request from mechanism to system -COM 55MECHA RSTOSOC (System On Chip) resetH: Normal, L: Reset 56SRAMSTBYODecoder SRAM standby controlH: SRAM standby 56NC-Not used Output L fi xed 57 CD LOE LIM SW ICD detectio

40、n (Chucking SW)H: Loading completed, L: No disc 58S SYS REQO Communication request from system -COM to mechanism 58MDSP CEOMechanism chip enable 59PON ILLOKey illumination power supply controlH: Power supply ON, L: Power supply OFF 60VCC2- 61DRV MUTEOCD motor driver mute output 62VSS- 63TYPE 1IDesti

41、nation SW 64TYPE 2IDestination SW 65NC-Not used Output L fi xed 66CD LOEJI/OCD motor controlqRefer to the truth value table 67CD MOTOROCD motor controlqRefer to the truth value table 6870NC-Not used Output L fi xed 71ILLUMI DETIDimmer illumination detectionL: ON, H: OFF 72ACC DETIACC power supply de

42、tectionACC found: L, No ACC: H 73BU DETIMomentary power-down detectionBU found: L, Momentary power down: H 74ANT CONOPower antenna controlTuner ON: H 75PCONO External power amplifi er control 76PWIC SVROPower IC SVR discharge circuit controlH: ON, L: OFF 77PWIC MUTEOPower IC mute control 78PWIC STBY

43、OPower IC standby control 79LINE MUTEILine mute detectionTEL mute: Below 1V, NAVI mute: Over 2.5V MICROCOMPUTERS TERMINAL DESCRIPTION 8 KDC-BT6544U/BT6544UY /BT7043U/BT742U Pin No.Pin NameI/OApplication Truth Value Table Processing / Operation / Description 80ST DC DETIWrong connection detection 81E

44、2P SDAI/OE2PROM I2C data input/output 82E2P SCLI/OE2PROM I2C clock input/output 83DC DETIDC offset detection 84MUTE AFSI/OAFS muteL: Mute ON, Hi-Z: Mute OFF 85MUTE 0OE-VOL Front muteL: ON, H: OFF 86MUTE 1OE-VOL Rear muteL: ON, H: OFF 87MUTE 2OE-VOL Sub Woofer muteL: ON, H: OFF 88MUTE PRE FROPRE-OUT

45、mute Front/Rear Lo when mute is Lo (CD played). Momentary power-down: L H fi xed only when Dual Zone is ON. 89MUTE PRE SWO PRE-OUT mute SW (Sub Woofer) * For both PRE-OUT Rear selected and SW selected. L: Mute, H: Mute OFF Lo when mute is Lo (CD played). Momentary power-down: L 90RDS NOISEIFM noise

46、detection(Terminal for European model) 91TUN SMETERIS-meter input 92LX MUTEIMute request from slave unitH: Mute ON, L: Mute OFF 93LX CONOStart-up request to slave unitH: Slave unit ON , L: Slave unit OFF 94AVSS- 95LX RSTOForced reset to slave unitH: Reset, L: Normal 96VREF- 97AVCC- 98LX DATA SIData

47、from slave unit 99LX DATA MOData to slave unit 100LX CLKI/OLX-BUS clock MICROCOMPUTERS TERMINAL DESCRIPTION Truth value table q CD motor control CD motorCD loading/eject StopLL LoadHL EjectHH BrakeHHi-z 9 KDC-BT6544U/BT6544UY /BT7043U/BT742U TEST MODE Display description KeyDescription of displayDes

48、cription A symbol “” in the key column indicates that the key should be pressed and held for 1 second or longer. Key layout FM+ TEL/ TI/AUTO PLAY/PAUSE RESET AM AUDuutt How to enter the test mode ProcedureNote Reset while SEARCH and SRC keys are being pressed.While “ ” is displayed, power can be tur

49、ned ON. All lamps blink when it is detected that the sub-clock resonator is disconnected. 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 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