Kenwood-KDCW-7541-UY-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. 2008-3 PRINTED IN JA PAN B53-0628-00 (N) 429SERVICE MANUAL KDC-MP738U/W7541U /W7541UY/X792/X8009U CD RECEIVER KDC-X792 KDC-MP738U KDC-X8009U KDC-W7541U KDC-X8009U (M type) KDC-W7541U KDC-W7541U

2、Y (E type) KDC-X792 (K type) SIZE AA BATTERY (Not supplied) Panel assy (A64-4425-02) MODEL TDF PANEL No. TDF NAME KDC-X792 Y33-2940-60 TDF-88DX KDC-MP738U Y33-2940-61 TDF-MP88D KDC-W7541U/W7541UY Y33-2940-64 TDF-W7541U KDC-X8009U Y33-2940-66 TDF-X8009U CD MECHANISM EXTENSIONCORD (30P) : E39-1014-05

3、DC cord (K,M type) (E30-6428-05) DC cord (E type) (E30-6671-05) Escutcheon (B07-3238-03): KDC-MP738U (B07-3235-03): K,E,M type Mounting hardware assy (J22-0011-03) Remote controller assy (A70-2085-05) Lever (D10-7012-04) x2 Carrying case (W01-1664-05): KDC-X792 (W01-1710-05): K,E type Compact disc (

4、W01-1723-05) Screw set (K,M type) (N99-1757-15) Screw set (K,M type) (N99-1730-35) Panel assy (A64-4428-02) RC-547 Panel assy (A64-4424-02) Plastic cabinet assy (M type) (A02-2757-03) TDF SPARE-PANEL Cover (KDC-X792) (F19-1475-04) Screw set (KDC-X792) (N99-1790-05) KDC-MP738U (K type) Panel assy (A6

5、4-4431-02) RadioFans.CN 收音机爱 好者资料库 2 KDC-MP738U/W7541U /W7541UY/X792/X8009U BLOCK DIAGRAM E2PROM FST FM/AM CD/USB AUX RST CH SAOUT SAIN PON SW14 PON ILL PON D5 PON ILL SW VBU PON ILL PON PA PANEL (X34-579) SUB PANEL (X16- ) (X15-119) AM+B SW5V A8V A8V AGC E-VOL PRE OUT AUX IN IC480 BU5V SW5V BU5V BA

6、CK UP BU5V OPEL DISP P-CON ANT-CON EXT AMP ACC DET DIMMER B.U DET BU5V ILL+B SW 14V A8V SW 5V P CON ANT CON EXT.AMP.CON DIMMER ACC BACK UP LINE MUTE SP OUT (FL/FR/RL/RR) D 3.3V SW 5V D 2.5V FL+B FL SW 3.3V RESET SW FLASH ROM KEY ILL BU5V SW5V A8V FL+B ILL+B ILL+B (F/R SW) WIRED REMO KEY TEL MUTE KEY

7、 MATRIX REMO. LX BUS SW 20V USB PAN5V CD SERVO+B BU5V D3.3V USB SOC D3.3V IC4 IC700 IC500 IC450 Q400 Q371,377 Q370,372-376 Q143 Q120 Q150 Q180 Q122 Q13 Q22 Q10 IC60 Q70 Q50 IC11 IC10 IC1 IC6 ED1 Q13 IC8IC7 IC20 IC602 IC600 IC340 IC530 Q20 IC510 MUTE SW MUTE PRE MUTE DRIVER POWER IC F/E (FST) RDS DEC

8、ODER ROM CORR SYSTEM u-COM EJECT SW RESET IC ENCODER ROTARY ROM CORR PANEL u-COM SHIFT LEVELLEVEL SHIFT SHIFT LEVEL FLIP DET LEVEL SHIFT BU5V CON. FL+B FDC SW14 +B SERVO Q30 SERVO+B FDC IC80 USB 5V PAN5V SW HISIDE IC300 VBUS Q70 DC/DC (FL)FL+B SW Q45 FDC PAN5V Q40 FDC PAN5V BVUS RadioFans.CN 收音机爱 好者

9、资料库 3 KDC-MP738U/W7541U /W7541UY/X792/X8009U BLOCK DIAGRAM DPU1 CD PLAYER UNIT (X32-6130-00) BOARD MOTHER (X34- ) EF A C B TR COIL FO COIL APC IC4 16.934MHz CLOCK IC3 LOADING & MOTOR DRIVER MOTOR SPINDLE S2 S1 S3 SLED MOTOR DM1 DM2 X1 Q1 RF AMP SERVO MP3 DECODER WMA DECODER 1M bit SRAM PROCESSOR AAC

10、 DECODER + + + + + CR FILTER CR FILTER REVERSAL CIRCUIT Q13 BU1.5V REG IC5 IC6 IC11 SW3.3V REG SW1.5V REG LOADING & VREF 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 SIGNAL S.GND S7.5V FO OUT TR OUT DM OUT FM OUT DRV MUTE SO SRAMSTB SI BUCK CCE PIO0 SRA

11、MSTB 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 PD BSIF LRCK BSIF ST REQ BSIF GATE BSIF BCK BSIF DATA BSIF ST REQ BSIF GATE BSIF DATA BSIF BCK BSIF LRCK 8EJE-SW RadioFans.CN 收音机爱 好者资料库 4 KDC-MP738U/W7541U /W7541UY/X792

12、/X8009U COMPONENTS DESCRIPTION ELECTRIC UNIT (X34-579x-xx) Ref. No.Application / FunctionOperation / Condition / Compatibility IC10Audio8V Ref Power SupplyOutput 1.27V. IC20RegulatorPower supply for BU3.3V. IC60Switching RegulatorPower supply for 65V FL+B. (to PANEL) IC80Switching RegulatorPower sup

13、ply for D5V. (to USB/PANEL) IC300Hi-side SWDetection of USB Over Current & On/Off SW IC310G-SensorInclination detection (only 0-10) IC340RDS decoder ICRDBS & RDS ecoder. (only K & E type) IC350OPAMPVref of IC480 IC450Power IC Amplifi es the front L/R and the rear L/R to 50W maximum. IC480Eelectrical

14、 Volume & Source SelecterControls the source, volume, and tone. IC500System -comControls FM/AM tuner, the changer, CD mechanism, Panel, volume and tone. IC510Reset IC“L” when detection voltage goes below 3.6V or less. IC520EEPROMRom correction IC530Muting logic ICControls logic for muting. IC600Logi

15、c ICLevel Shift (3.3V5V) IC602Logic ICLevel Shift (5V3.3V) IC700Sub -comUSB/CD mechanism control IC751EEPROMRom correction IC752iPod Authentication CoprocessoriPod Authentication Q10Audio8V AVRWhen Q11&Q12 go ON, A8V AVR outputs 8.0V. Q11,12Audio8V AVR SWWhen Q12 Base goes Hi, Supply current to IC10

16、. Q13,14Audio8V AVR SWWhen Q14 Base goes Hi, Q13 are ON. Q20,21B.U.5V AVRWhile BU is applied, BU5V AVR outputs +5V. Q22,23PON5VWhen Q23 base goes Hi, PON5V outputs +5V. Q30Servo +B SWWhen Q31 go ON, Servo +B outputs 8V. Q31Servo +B SWWhen Q13 go ON, Q30 are ON Q40,41PANEL +5V SWWhen Q41 base gose Hi

17、, PANEL +5V is outputs. Q45,46FDC SWWhen PON-ILL (-CON) goes ON, AVR outputs 5V. (FL Filament) Q50,51Illumination+B AVRWhen Q52&Q53 go ON, AVR outputs 10V. Q52,53Illumination+B SWWhen PON-ILL (-CON) goes ON, Hi, Q52 is ON. Q70,71SW15VWhen Q13 go ON, The voltage appears. (15V) Q80Change of Oscillatio

18、n Frequency When Q80 is turned ON, the oscillation frequency at IC80 in the switching regulator changes from 1MHz to 2.45MHz. Q120B.U Detected SWWhen Q120 base gose Hi, B.U voltage is detected. Q122ACC Detect SWWhen Q122 base gose Hi, Acc voltage is detected. Q123Surge Detect SWWhen Q123 base goes H

19、i, Surge voltage is detected. Q140,143P-CON SWWhen Q140 base goes Hi, AVR outputs 14V. Q141,142P-CON ProtectProtect Q142 by turning on when P-CON output is grounded Q150,151Power Antenna SWWhen Q151 base goes Hi, power antenna switch outputs 14V. Q180Small-lamp Detect SWWhen Q180 base goes Hi, Small

20、-lamp is detected. 5 KDC-MP738U/W7541U /W7541UY/X792/X8009U COMPONENTS DESCRIPTION Ref. No.Application / FunctionOperation / Condition / Compatibility Q350,3514VPRE+BWhen Q353 go ON, 4VPRE+B is outputs. (12V) Q3524VPRE+B ProtectWhen 4VPRE+B is overcurrent, Q352 turn Q350 off. Q353,3544VPRE+B SWWhen

21、Q354 Base goes Hi, Q353 is ON. Q370,372376Pre-out mute SWWhen a base gose Hi, Pre-out is set to mute. Q371,377Pre-out mute driverWhen a base gose Lo, mute driver is turned on. Q400,401AM+B SWWhen Q401 base gose Hi, AM+B is outputs. Q500,501FL+B SWWhen PON-ILL (-CON) goes ON, FL+B outputs 65V. Q650X1

22、5 LED SWWhen DSI Port LOW, LED of X15 are ON Q702,703 3.3V_SW_for_IC700 (fl ash_type)When base of Q702 is “H”, 3.3V_On. Q704 Decoder SRAM standby control Buffer When base of Q704 is “L”, SRAM_STBY. Q705CD “LOE_LIM” SW_BufferWhen base of Q705 is “H”, Loading_End. SWITCH UNIT (X16-624x-xx) Ref. No.App

23、lication / FunctionOperation / Condition / Compatibility IC1 ROM IC FLASH ROM IC Graphics data included IC3ROM CORRECTIONFor program correcting emergency (EEP_ROM) IC4PANEL -COMFL VddSupply (ON/OFF) Encoder Key LedSW (ON/OFF) is controlled by IC4 IC6REMOTE CONTROL ICRemote control receiver IC7BUFFER

24、 IC It is change into 3.3V from 5V IC8BUFFER ICIt is change into 5V from 3.3V IC9BUFFER ICFor Control ED1 IC102.5V REGULATORThe power supply for 2.5V IC113.3V REGULATORThe power supply for 3.3V Q15LED DRIVERIt is controlled by IC4 Q6POWER ON/OFF SWITCH OF IC1It is controlled by IC4 Q11,13 POWER ON/O

25、FF SWITCH OF ED1 (65V) It is controlled by IC4 CD PLAYER UNIT (X32-6130-00) Ref. No.Application / 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-i

26、n Audio DACWith built-in MP3/WMA/AAC decoder and 1M-bit-SRAM. 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 Diode). Q13InverterInverts ZDET signal. D2Laser Diode Protect

27、ionPrevents reverse bias which is applied to laser. Laser destruction prevention. D3,4Static Electricity CountermeasurePrevents malfunction by static electricity. 6 KDC-MP738U/W7541U /W7541UY/X792/X8009U MICROCOMPUTERS TERMINAL DESCRIPTION SYSTEM MICROCOMPUTER 30624MGPB77GP (X34: IC500) Pin No.Pin N

28、ameI/OApplication Truth Value Table Processing / Operation / Description 1WIRED_REMOIRemote controller inputPulse width detection 2RDS_QUALIRDS decoder QUAL input terminal 2NCONot used. (In models without RDS) Output L fi xed 3S_SYS_DATAOSystem -com SOC data400k 4S_SOC_DATAISOC System -com data400k

29、5S_SOC_CLKIHost is SOC. CLK from SOC400k 6BYTE 7CNVSS 8XCIN32,768Hz 9XCOUT32,768Hz 10RESET 11XOUT12MHz 12VSS 13XIN12MHz 14VCC1 15NMIINot used 16RDS_CLKIRDS clock input terminal 16NCONot used. (In models without RDS) Output L fi xed 17FLIP_DETIFLIP panel open detection H: Open, L: Close Shut down pow

30、er to panel system in synchronous with opening the panel. Audio shall be kept on 18SRC_KEYISource key inputH: OFF, L: ON 19RDS_DATAIRDS decoder DATA input terminal 19NCONot used. (In models without RDS) Output L fi xed 20PANEL_SW_DETIFLIP panel detach detection H: Panel attached, L: Panel detached E

31、nter PowOFF condition simultaneously with detection 21EJECT_KEYIEject key inputH: OFF, L: ON 22PANRSTOPanel reset terminalH: Normal, L: Reset 23DSI (EJECT_ILL)I/ODSI control terminalL: Turns on, Hi-Z: Turns off 24NCONot used (SW_REG frequency setup terminal 2) Output L fi xed 25F_SEL1I/OSW_REG frequ

32、ency setup terminal 1tH: For AM, Hi-Z: For other than AM 26PWIC_BEEPOBeep output2kHz 1kHz 27TUN_SCLI/OF/E I2C clock input/output terminalMAX 400k 28TUN_SDAI/OF/E I2C data input/output terminalMAX 400k 29PAN_SYS_DATAOSystem -com Panel dataUART MAX500k 30PAN_PAN_DATAIPanel System -com dataUART MAX500k

33、 31PAN_SYS_REQOSystem -com Panel communication request 32PAN_PAN_REQIPanel System -com communication request 33,34NCONot used Output L fi xed 7 KDC-MP738U/W7541U /W7541UY/X792/X8009U Pin No.Pin NameI/OApplication Truth Value Table Processing / Operation / Description 35NC (D5V_DIS)ONot used Output L

34、 fi xed 36PON_ILLI/O Panel LED FL fi lament power supply FL bias power supply control H: ON, Hi-Z: OFF Turned OFF when the display is black out. Turned OFF when panel is dismounted/opened. 37NCONot used Output L fi xed 38PON_PANELI/O Power supply for panel -com Required for panel authentication H: O

35、N, Hi-Z: OFF Turn OFF when panel is dismounted/opened or when power is off. 39ROMCOR_DETIROM correction writing-in requestH: Can re-write ROM (ROM correction)(I2C is open) 39EPMI EPM input terminal for re-writing ROM. ROM is re-writable when the input is “L” at the boot up. 40CD_MOTOROCD motor contr

36、ol terminalwRefer to the truth value table 41CD_LOE_LIM_SWICD detection terminal (Chucking detection)H: Loading completed, L: No disc is found. 42CD_LOS_SWICD loading detection terminalL: Ejection completed. 43CD_DISC12_SWICD disc detection terminal (12cm)L: 12cm disc 44PAN_SC_CONO Panel operation c

37、ontrol terminal CE when the system -com is re-written H: In normal condition, L: Stop the panel. 45CD_LOEJI/OCD motor control terminalwRefer to the truth value table 46S_SOC_REQISOC System -com communication request 47SOC_STOPOSOC stop terminalH: Normal, L: Stop SOC. 48SOC_RSTOSOC reset terminalH: N

38、ormal, L: Reset 49S_SYS_REQOSystem -com SOC communication request 50SOC_MUTEISOC mute requestL: MUTE request, H: In normal condition 51PON_D5VI/O 5V power supply control terminal for FL fi lament, panel, and USB. H: ON, Hi-Z: OFF 52PONI/OPower supply control terminalH: ON, Hi-Z: OFF 53OEM_DISP_DATAI

39、/OExternal display DATAExternal display 53NCONot used (Model without OEM_DISP) Output L fi xed 54OEM_DISP_CLKI/OExternal display CLKExternal display 54NCONot used (Model without OEM_DISP) Output L fi xed 55OEM_DISP_CEI/OExternal display control requestExternal display 55NCONot used (Model without OE

40、M_DISP) Output L fi xed 56P_CONI/OPCON control terminal POWER ON: H, POWER OFF: Hi-Z STBY source: Hi-Z 57ANT_CONOANTCON control terminal TUNER source: H, POWER OFF: L STBY source: L 58NCONot used Output L fi xed 59ILLUMI_DETIDimmer illumi detectionL: ON, H: OFF 60VCC2 61MUTE_0OIC-2 FRONT MUTE contro

41、l L: Mute ON, Independent setup of time constant 10ms, H: In normal condition 62VSS 63MUTE_1OIC-2 REAR MUTE control L: Mute ON, Independent setup of time constant 10ms, H: In normal condition MICROCOMPUTERS TERMINAL DESCRIPTION 8 KDC-MP738U/W7541U /W7541UY/X792/X8009U Pin No.Pin NameI/OApplication T

42、ruth Value Table Processing / Operation / Description 64MUTE_2OIC-2 SW MUTE control L: Mute ON, Independent setup of time constant 10ms, H: In normal condition Shall be used together with MUTE_PRE_SW IC2 shock noise measure 65LINE_MUTEILine mute detectionTEL MUTE: 1V or less, NAVI MUTE: 2.5V or high

43、er 66NC (SA_IN)ONot used Output L fi xed 67NC (SA_RST)ONot used Output L fi xed 68NC (SA_CLK)ONot used Output L fi xed 69NC (MUTE_SA)ONot used Output L fi xed 70PWIC_DC_DETIDC offset detection terminal 71ACC_DETIACC detectionL: ACC found, H: ACC not found 72BU_DETIBU detection L: BU found, H: When N

44、o BU Reduction of power, and Over voltage 73LX_REQ_SICommunication request from slave unit 74MUTE_AFSI/O IC-2 MUTE_C control AFS MUTE L: Mute ON, Independent setup of time constant 0.5ms, Hi-Z: While in normal 74NCINot used (For other type than E-TYPE) Input Hi-Z fi xed 75SDA/EVOL_SDAI/OSystem -com

45、IC-2 data outputCommunication speed 200-400k 75SDA/E2P_SDAI/OI2C data for ROM correctionCommunication speed 200-400k 76SCL/EVOL_SCLI/OSystem -com IC-2 CLK outputCommunication speed 200-400k 76SCL/E2P_SCLI/OI2C clock for ROM correctionCommunication speed 200-400k 77PWIC_MUTEOPower IC MUTE terminal L:

46、 While STANDBY source, momentary power down, L: While TEL MUTE 78PWIC_STBYOPower IC standby terminalPOWER ON: H, POWER OFF: L 79LX_REQ_MOCommunication request to slave unit 80LX_MUTEIMUTE request from slave unitH: Mute ON, L: Mute OFF 81LX_CONOStart-up request to slave unitH: Slave unit ON, L: Slave

47、 unit OFF 82LX_RSTOHardware-reset to slave unitH: RST, L: Normal 83MUTE_PRE_FROExternal PREOUT_MUTE F/R“L” when Obit, or momentary power down 84MUTE_PRE_SWO External PREOUT_MUTE SUB MUTE_2 shock noise measure “L” when Obit, or momentary power down Shall be used in addition to MUTE_2. 85PON_AMI/OAM+B

48、 power supply control terminal H: ON when AM is being received. Hi-z: OFF in other condition. 86TUN_IFC_OUTIF/E IFC OUT input terminalH: Station is found., L: No station is found. 87TUN_SMETERIS meter voltage detection terminal 88RDS_NOISEIFM noise voltage detection terminal 88NCONot used. (In model

49、s without RDS) Output L fi xed 89RDS_AFS_MI/OTime constant switching when noise is detectedeL: During AF search, Hi-Z: In normal condition 89NCONot used. (In models without RDS) Output L fi xed 90TYPE_1IA/D 5 patternq 91TYPE_2IA/D 5 patternq 92G_Y_OUTIDetection of Y direction movement of G analyzer 92NCONot used. (In models without G antenna) Output L fi xed MICROCOMPUTERS TERMINAL DESCRIPTION 9 KDC-MP738U/W7541U /W7541UY/X792/X8009U Pin No.Pin NameI/OApplication Truth Value Table Processing / Operation / Description 93G_X_OUTIDetection o