Kenwood-KDCW-7541-U-Service-Manual电路原理图.pdf

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1、This product uses Lead Free solder.This product complies with the RoHS directive for the European market. 2008-3 PRINTED IN JA PANB53-0628-00 (N) 429SERVICE MANUALKDC-MP738U/W7541U/W7541UY/X792/X8009UCD RECEIVERKDC-X792KDC-MP738UKDC-X8009UKDC-W7541UKDC-X8009U(M type)KDC-W7541UKDC-W7541UY(E type)KDC-

2、X792(K type)SIZE AA BATTERY(Not supplied)Panel assy(A64-4425-02)MODEL TDF PANEL No. TDF NAMEKDC-X792 Y33-2940-60 TDF-88DXKDC-MP738U Y33-2940-61 TDF-MP88D KDC-W7541U/W7541UY Y33-2940-64 TDF-W7541UKDC-X8009U Y33-2940-66 TDF-X8009UCD MECHANISM EXTENSIONCORD (30P) : E39-1014-05DC cord (K,M type)(E30-642

3、8-05)DC cord (E type)(E30-6671-05)Escutcheon(B07-3238-03): KDC-MP738U(B07-3235-03): K,E,M typeMounting hardware assy(J22-0011-03)Remote controller assy(A70-2085-05)Lever(D10-7012-04) x2Carrying case(W01-1664-05): KDC-X792(W01-1710-05): K,E typeCompact disc(W01-1723-05)Screw set (K,M type)(N99-1757-1

4、5)Screw set (K,M type)(N99-1730-35)Panel assy(A64-4428-02)RC-547Panel assy(A64-4424-02)Plastic cabinet assy (M type)(A02-2757-03)TDF SPARE-PANELCover (KDC-X792)(F19-1475-04)Screw set (KDC-X792)(N99-1790-05)KDC-MP738U(K type)Panel assy(A64-4431-02)2KDC-MP738U/W7541U/W7541UY/X792/X8009UBLOCK DIAGRAME2

5、PROMFSTFM/AMCD/USBAUXRSTCHSAOUTSAINPONSW14PON ILLPON D5PON ILLSW VBUPON ILLPON PAPANEL(X34-579)SUB PANEL(X16- )(X15-119)AM+BSW5VA8VA8VAGCE-VOLPRE OUTAUX INIC480BU5VSW5VBU5VBACK UPBU5VOPEL DISPP-CONANT-CONEXT AMPACC DETDIMMERB.U DETBU5VILL+BSW 14VA8VSW 5VP CONANT CONEXT.AMP.CONDIMMERACCBACK UPLINE MU

6、TESP OUT(FL/FR/RL/RR)D 3.3VSW 5VD 2.5VFL+BFLSW 3.3VRESET SWFLASH ROMKEY ILLBU5VSW5VA8VFL+BILL+BILL+B(F/R SW)WIRED REMOKEYTEL MUTEKEY MATRIXREMO.LX BUSSW 20VUSBPAN5VCDSERVO+BBU5VD3.3VUSBSOCD3.3VIC4IC700IC500IC450Q400Q371,377Q370,372-376Q143Q120Q150Q180Q122Q13Q22Q10IC60Q70Q50IC11IC10IC1IC6ED1Q13IC8IC7

7、IC20IC602IC600IC340IC530Q20IC510MUTESWMUTEPREMUTEDRIVERPOWERICF/E(FST)RDSDECODERROM CORRSYSTEMu-COMEJECTSWRESETICENCODERROTARYROM CORRPANELu-COMSHIFTLEVEL LEVELSHIFTSHIFTLEVELFLIPDET LEVELSHIFTBU5VCON.FL+BFDCSW14+BSERVOQ30SERVO+BFDCIC80USB 5VPAN5VSWHISIDEIC300VBUSQ70DC/DC(FL) FL+BSWQ45FDCPAN5VQ40FDC

8、PAN5VBVUS3KDC-MP738U/W7541U/W7541UY/X792/X8009UBLOCK DIAGRAMDPU1CD PLAYER UNIT (X32-6130-00)BOARDMOTHER(X34- )EFACBTR COILFO COILAPCIC416.934MHzCLOCKIC3LOADING &MOTORDRIVERMOTORSPINDLES2S1S3SLEDMOTORDM1DM2X1Q1RF AMPSERVOMP3 DECODERWMA DECODER1M bit SRAMPROCESSORAAC DECODER+CR FILTERCR FILTERREVERSAL

9、CIRCUITQ13BU1.5V REGIC5IC6IC11SW3.3V REGSW1.5V REGLOADING &VREF12EJE-SWLOS-SWLOE-SWMOTORLO/EJA.GNDA8VA,B,C,E,FTR OUTFO OUTDM OUTFM OUTA3.3VLDSIGNALS.GNDS7.5VFO OUTTR OUTDM OUTFM OUTDRV MUTESOSRAMSTBSIBUCKCCEPIO0SRAMSTBBUCKCCEPIO0SOSIMRST MRSTC88,R82C87,R83R-chL-ch L-chR-chZDET MUTE L/RD.GNDD GND BU1

10、.5V SW1.5VSW3.3V AGNDBU5VP.ONPDBSIF LRCKBSIF ST REQBSIF GATEBSIF BCKBSIF DATABSIF ST REQBSIF GATEBSIF DATABSIF BCKBSIF LRCK8EJE-SW4KDC-MP738U/W7541U/W7541UY/X792/X8009UCOMPONENTS DESCRIPTION ELECTRIC UNIT (X34-579x-xx)Ref. No. Application / Function Operation / Condition / CompatibilityIC10 Audio8V

11、Ref Power Supply Output 1.27V.IC20 Regulator Power supply for BU3.3V.IC60 Switching Regulator Power supply for 65V FL+B. (to PANEL)IC80 Switching Regulator Power supply for D5V. (to USB/PANEL)IC300 Hi-side SW Detection of USB Over Current & On/Off SWIC310 G-Sensor Inclination detection (only 0-10)IC

12、340 RDS decoder IC RDBS & RDS ecoder. (only K & E type)IC350 OPAMP Vref of IC480IC450 Power IC Amplifi es the front L/R and the rear L/R to 50W maximum.IC480 Eelectrical Volume & Source Selecter Controls the source, volume, and tone.IC500 System -com Controls FM/AM tuner, the changer, CD mechanism,

13、Panel, volume and tone.IC510 Reset IC “L” when detection voltage goes below 3.6V or less.IC520 EEPROM Rom correctionIC530 Muting logic IC Controls logic for muting.IC600 Logic IC Level Shift (3.3V5V)IC602 Logic IC Level Shift (5V3.3V)IC700 Sub -com USB/CD mechanism controlIC751 EEPROM Rom correction

14、IC752 iPod Authentication Coprocessor iPod AuthenticationQ10 Audio8V AVR When Q11&Q12 go ON, A8V AVR outputs 8.0V.Q11,12 Audio8V AVR SW When Q12 Base goes Hi, Supply current to IC10.Q13,14 Audio8V AVR SW When Q14 Base goes Hi, Q13 are ON.Q20,21 B.U.5V AVR While BU is applied, BU5V AVR outputs +5V.Q2

15、2,23 PON5V When Q23 base goes Hi, PON5V outputs +5V.Q30 Servo +B SW When Q31 go ON, Servo +B outputs 8V.Q31 Servo +B SW When Q13 go ON, Q30 are ONQ40,41 PANEL +5V SW When Q41 base gose Hi, PANEL +5V is outputs.Q45,46 FDC SW When PON-ILL (-CON) goes ON, AVR outputs 5V. (FL Filament)Q50,51 Illuminatio

16、n+B AVR When Q52&Q53 go ON, AVR outputs 10V.Q52,53 Illumination+B SW When PON-ILL (-CON) goes ON, Hi, Q52 is ON.Q70,71 SW15V When Q13 go ON, The voltage appears. (15V)Q80 Change of Oscillation FrequencyWhen Q80 is turned ON, the oscillation frequency at IC80 in the switching regulator changes from 1

17、MHz to 2.45MHz.Q120 B.U Detected SW When Q120 base gose Hi, B.U voltage is detected.Q122 ACC Detect SW When Q122 base gose Hi, Acc voltage is detected.Q123 Surge Detect SW When Q123 base goes Hi, Surge voltage is detected.Q140,143 P-CON SW When Q140 base goes Hi, AVR outputs 14V.Q141,142 P-CON Prote

18、ct Protect Q142 by turning on when P-CON output is groundedQ150,151 Power Antenna SW When Q151 base goes Hi, power antenna switch outputs 14V.Q180 Small-lamp Detect SW When Q180 base goes Hi, Small-lamp is detected.5KDC-MP738U/W7541U/W7541UY/X792/X8009UCOMPONENTS DESCRIPTIONRef. No. Application / Fu

19、nction Operation / Condition / CompatibilityQ350,351 4VPRE+B When Q353 go ON, 4VPRE+B is outputs. (12V)Q352 4VPRE+B Protect When 4VPRE+B is overcurrent, Q352 turn Q350 off.Q353,354 4VPRE+B SW When Q354 Base goes Hi, Q353 is ON.Q370,372376 Pre-out mute SW When a base gose Hi, Pre-out is set to mute.Q

20、371,377 Pre-out mute driver When a base gose Lo, mute driver is turned on.Q400,401 AM+B SW When Q401 base gose Hi, AM+B is outputs.Q500,501 FL+B SW When PON-ILL (-CON) goes ON, FL+B outputs 65V.Q650 X15 LED SW When DSI Port LOW, LED of X15 are ON Q702,703 3.3V_SW_for_IC700 (fl ash_type) When base of

21、 Q702 is “H”, 3.3V_On.Q704Decoder SRAM standby control BufferWhen base of Q704 is “L”, SRAM_STBY.Q705 CD “LOE_LIM” SW_Buffer When base of Q705 is “H”, Loading_End. SWITCH UNIT (X16-624x-xx)Ref. No. Application / Function Operation / Condition / CompatibilityIC1ROM ICFLASH ROM ICGraphics data include

22、dIC3 ROM CORRECTION For program correcting emergency (EEP_ROM)IC4 PANEL -COM FL VddSupply (ON/OFF) Encoder Key LedSW (ON/OFF) is controlled by IC4IC6 REMOTE CONTROL IC Remote control receiverIC7 BUFFER IC It is change into 3.3V from 5VIC8 BUFFER IC It is change into 5V from 3.3VIC9 BUFFER IC For Con

23、trol ED1IC10 2.5V REGULATOR The power supply for 2.5VIC11 3.3V REGULATOR The power supply for 3.3VQ15 LED DRIVER It is controlled by IC4Q6 POWER ON/OFF SWITCH OF IC1 It is controlled by IC4Q11,13POWER ON/OFF SWITCH OF ED1 (65V)It is controlled by IC4 CD PLAYER UNIT (X32-6130-00)Ref. No. Application

24、/ Function Operation / Condition / CompatibilityIC3 4ch BTL DriverDriver for focusing & tracking coil, driver for sled & spindle motor, and operation for disc loading & ejection.IC4 Servo DSP with built-in Audio DAC With built-in MP3/WMA/AAC decoder and 1M-bit-SRAM.IC5 D1.5V REG. Power supply for di

25、gital 1.5V.IC6 D3.3V REG. Power supply for digital 3.3V.IC11 BU1.5V REG. Power supply for back-up 1.5V.Q1 APC (Auto Power Control) Drives LD (Laser Diode).Q13 Inverter Inverts ZDET signal.D2 Laser Diode Protection Prevents reverse bias which is applied to laser. Laser destruction prevention.D3,4 Sta

26、tic Electricity Countermeasure Prevents malfunction by static electricity.6KDC-MP738U/W7541U/W7541UY/X792/X8009UMICROCOMPUTERS TERMINAL DESCRIPTION SYSTEM MICROCOMPUTER 30624MGPB77GP (X34: IC500)Pin No. Pin Name I/O ApplicationTruthValue TableProcessing / Operation / Description1 WIRED_REMO I Remote

27、 controller input Pulse width detection2 RDS_QUAL I RDS decoder QUAL input terminal2 NC O Not used. (In models without RDS) Output L fi xed3 S_SYS_DATA O System -com SOC data 400k4 S_SOC_DATA I SOC System -com data 400k5 S_SOC_CLK I Host is SOC. CLK from SOC 400k6 BYTE7 CNVSS8 XCIN 32,768Hz9 XCOUT 3

28、2,768Hz10 RESET11 XOUT 12MHz12 VSS13 XIN 12MHz14 VCC115 NMI I Not used16 RDS_CLK I RDS clock input terminal16 NC O Not used. (In models without RDS) Output L fi xed17 FLIP_DET I FLIP panel open detectionH: Open, L: CloseShut down power to panel system in synchronous with opening the panel. Audio sha

29、ll be kept on18 SRC_KEY I Source key input H: OFF, L: ON19 RDS_DATA I RDS decoder DATA input terminal19 NC O Not used. (In models without RDS) Output L fi xed20 PANEL_SW_DET I FLIP panel detach detectionH: Panel attached, L: Panel detachedEnter PowOFF condition simultaneously with detection21 EJECT_

30、KEY I Eject key input H: OFF, L: ON22 PANRST O Panel reset terminal H: Normal, L: Reset23 DSI (EJECT_ILL) I/O DSI control terminal L: Turns on, Hi-Z: Turns off 24 NC O Not used (SW_REG frequency setup terminal 2) Output L fi xed25 F_SEL1 I/O SW_REG frequency setup terminal 1 t H: For AM, Hi-Z: For o

31、ther than AM26 PWIC_BEEP O Beep output 2kHz 1kHz27 TUN_SCL I/O F/E I2C clock input/output terminal MAX 400k28 TUN_SDA I/O F/E I2C data input/output terminal MAX 400k29 PAN_SYS_DATA O System -com Panel data UART MAX500k30 PAN_PAN_DATA I Panel System -com data UART MAX500k31 PAN_SYS_REQ O System -com

32、Panel communication request32 PAN_PAN_REQ I Panel System -com communication request33,34 NC O Not used Output L fi xed7KDC-MP738U/W7541U/W7541UY/X792/X8009UPin No. Pin Name I/O ApplicationTruthValue TableProcessing / Operation / Description35 NC (D5V_DIS) O Not used Output L fi xed36 PON_ILL I/OPane

33、l LEDFL fi lament power supplyFL bias power supply controlH: ON, Hi-Z: OFFTurned OFF when the display is black out. Turned OFF when panel is dismounted/opened.37 NC O Not used Output L fi xed38 PON_PANEL I/OPower supply for panel -comRequired for panel authenticationH: ON, Hi-Z: OFFTurn OFF when pan

34、el is dismounted/opened or when power is off.39 ROMCOR_DET I ROM correction writing-in request H: Can re-write ROM (ROM correction)(I2C is open)39 EPM IEPM input terminal for re-writing ROM. ROM is re-writable when the input is “L” at the boot up.40 CD_MOTOR O CD motor control terminal w Refer to th

35、e truth value table41 CD_LOE_LIM_SW I CD detection terminal (Chucking detection) H: Loading completed, L: No disc is found.42 CD_LOS_SW I CD loading detection terminal L: Ejection completed.43 CD_DISC12_SW I CD disc detection terminal (12cm) L: 12cm disc44 PAN_SC_CON OPanel operation control termina

36、lCE when the system -com is re-writtenH: In normal condition, L: Stop the panel.45 CD_LOEJ I/O CD motor control terminal w Refer to the truth value table46 S_SOC_REQ I SOC System -com communication request47 SOC_STOP O SOC stop terminal H: Normal, L: Stop SOC.48 SOC_RST O SOC reset terminal H: Norma

37、l, L: Reset49 S_SYS_REQ O System -com SOC communication request50 SOC_MUTE I SOC mute request L: MUTE request, H: In normal condition51 PON_D5V I/O5V power supply control terminal for FL fi lament, panel, and USB.H: ON, Hi-Z: OFF52 PON I/O Power supply control terminal H: ON, Hi-Z: OFF53 OEM_DISP_DA

38、TA I/O External display DATA External display53 NC O Not used (Model without OEM_DISP) Output L fi xed54 OEM_DISP_CLK I/O External display CLK External display54 NC O Not used (Model without OEM_DISP) Output L fi xed55 OEM_DISP_CE I/O External display control request External display55 NC O Not used

39、 (Model without OEM_DISP) Output L fi xed56 P_CON I/O PCON control terminalPOWER ON: H, POWER OFF: Hi-ZSTBY source: Hi-Z57 ANT_CON O ANTCON control terminalTUNER source: H, POWER OFF: LSTBY source: L58 NC O Not used Output L fi xed59 ILLUMI_DET I Dimmer illumi detection L: ON, H: OFF60 VCC261 MUTE_0

40、 O IC-2 FRONT MUTE controlL: Mute ON, Independent setup of time constant 10ms, H: In normal condition62 VSS63 MUTE_1 O IC-2 REAR MUTE controlL: Mute ON, Independent setup of time constant 10ms, H: In normal conditionMICROCOMPUTERS TERMINAL DESCRIPTION8KDC-MP738U/W7541U/W7541UY/X792/X8009UPin No. Pin

41、 Name I/O ApplicationTruthValue TableProcessing / Operation / Description64 MUTE_2 O IC-2 SW MUTE controlL: Mute ON, Independent setup of time constant 10ms, H: In normal conditionShall be used together with MUTE_PRE_SWIC2 shock noise measure65 LINE_MUTE I Line mute detection TEL MUTE: 1V or less, N

42、AVI MUTE: 2.5V or higher66 NC (SA_IN) O Not used Output L fi xed67 NC (SA_RST) O Not used Output L fi xed68 NC (SA_CLK) O Not used Output L fi xed69 NC (MUTE_SA) O Not used Output L fi xed70 PWIC_DC_DET I DC offset detection terminal71 ACC_DET I ACC detection L: ACC found, H: ACC not found72 BU_DET

43、I BU detectionL: BU found, H: When No BUReduction of power, and Over voltage73 LX_REQ_S I Communication request from slave unit74 MUTE_AFS I/OIC-2 MUTE_C controlAFS MUTEL: Mute ON, Independent setup of time constant 0.5ms, Hi-Z: While in normal74 NC I Not used (For other type than E-TYPE) Input Hi-Z

44、 fi xed75 SDA/EVOL_SDA I/O System -com IC-2 data output Communication speed 200-400k75 SDA/E2P_SDA I/O I2C data for ROM correction Communication speed 200-400k76 SCL/EVOL_SCL I/O System -com IC-2 CLK output Communication speed 200-400k76 SCL/E2P_SCL I/O I2C clock for ROM correction Communication spe

45、ed 200-400k77 PWIC_MUTE O Power IC MUTE terminalL: While STANDBY source, momentary power down, L: While TEL MUTE78 PWIC_STBY O Power IC standby terminal POWER ON: H, POWER OFF: L 79 LX_REQ_M O Communication request to slave unit80 LX_MUTE I MUTE request from slave unit H: Mute ON, L: Mute OFF81 LX_C

46、ON O Start-up request to slave unit H: Slave unit ON, L: Slave unit OFF82 LX_RST O Hardware-reset to slave unit H: RST, L: Normal83 MUTE_PRE_FR O External PREOUT_MUTE F/R “L” when Obit, or momentary power down84 MUTE_PRE_SW OExternal PREOUT_MUTE SUBMUTE_2 shock noise measure“L” when Obit, or momenta

47、ry power downShall be used in addition to MUTE_2.85 PON_AM I/O AM+B power supply control terminalH: ON when AM is being received.Hi-z: OFF in other condition.86 TUN_IFC_OUT I F/E IFC OUT input terminal H: Station is found., L: No station is found.87 TUN_SMETER I S meter voltage detection terminal88

48、RDS_NOISE I FM noise voltage detection terminal88 NC O Not used. (In models without RDS) Output L fi xed89 RDS_AFS_M I/O Time constant switching when noise is detected e L: During AF search, Hi-Z: In normal condition89 NC O Not used. (In models without RDS) Output L fi xed90 TYPE_1 I A/D 5 pattern q

49、91 TYPE_2 I A/D 5 pattern q92 G_Y_OUT I Detection of Y direction movement of G analyzer92 NC O Not used. (In models without G antenna) Output L fi xedMICROCOMPUTERS TERMINAL DESCRIPTION9KDC-MP738U/W7541U/W7541UY/X792/X8009UPin No. Pin Name I/O ApplicationTruthValue TableProcessing / Operation / Description93 G_X_OUT I Detection of X direction movement of G analyzer93 NC O Not used. (In models without G antenna) Output L fi xed94 AVSS95 NC O Not used Output L fi xed96 VREF A/D analog reference voltage97 AVCC98 LX_DATA_S