Kenwood-KDCBT-648-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. PbF 2011-4 PRINTED IN JA PAN B53-0844-00 (N) 303SERVICE MANUAL KDC-348U/4751SD KDC-BT41U/BT648U KDC-U4549/U4549SD/U549BT KDC-X395/X695 CD RECEIVER TDF SPARE-PANEL MAIN UNIT NAMETDF PARTS No.TDF

2、 NAME KDC-348UY33-3490-11TDF-113D KDC-4751SDY33-3482-73TDF-4751SD KDC-BT41UY33-3482-71TDF-BT41U KDC-BT648U KDC-U4549Y33-3490-21TDF-U4549 KDC-U4549SDY33-3480-22TDF-U4549SD KDC-U549BTY33-3480-21TDF-U549BT KDC-X395Y33-3490-10TDF-113DX KDC-X695Y33-3480-11TDF-116DX KDC-4751SD : Panel assy (A64-5245-02) Y

3、33-3480-10TDF-BT116D After replacing E2PROM (IC203 on X34), tuner setting adjustment is needed. The adjustment is that to perform the “TUNER Setting Adjustment Mode” (Page 13). Tuner setting adjustment after replacing E2PROM Mounting hardware assy (J22-2049-03) Lever (D10-7139-04) x2 * DC cord (E30-

4、6933-05) * Screw set (N99-1757-15) * Carrying case (W01-xxxx-xx) * DC cord (E30-6934-05) * Tap screw (2x8) (N80-2008-48) * Plastic cabinet assy (A02-2757-13) * Remote controller assy (RC-405) (A70-2104-05) * Trim plate (xxx-xxxx-xx) * Microphone (3m) (W01-1768-15) * Depends on the model. Refer to th

5、e parts list. KDC-X695 : Panel assy (A64-5241-12) KDC-BT648U : Panel assy (A64-5240-02) KDC-U4549SD : Panel assy (A64-5246-12) KDC-U549BT : Panel assy (A64-5244-12) KDC-BT41U : Panel assy (A64-5242-12) RadioFans.CN 收音机爱 好者资料库 2 KDC-348U/4751SD/BT41U/BT648U /U4549/U4549SD/U549BT/X395/X695 BLOCK DIAGR

6、AM ELECTRIC UNIT (X34- ) SWITCH UNIT (X16- ) E-VOL IC401 SYSTEM u-COM SW14V Q3,4 A8V BU5V SW5V RESET IC202 RESET SW IC201 IC801 J1 ILLUMI+B J701 MUTE Q707,708 IC501 J601 S301 A8V IC1 IC SUPPLY POWER MUTE PRE PRE-OUT DC-CN BU DC/DC5V Q51 CD MECHA DME1 SW HI-SIDE IC71 A901 LX-BUS FL ED1 MATRIX KEY SHI

7、FT LEVEL IC301 SERVO+B IC902 BT3.3V BT MODULE BU5V TUNER ATOMIC BU5V MIC CN J921 602 SHIFT LEVEL BU3.3V Q701-706 W551 BU POWER IC BU5V BU3.3V IC601, ROM E2P IC203 SW3.3V BU5V 4VPRE+B A8V SHIFT LEVEL SWREG5V IC802 iPod AUTHENTICATION IC261 SW3.3V AM+BLPF IC901 SW ANALOG IC921 AGC AMP IC451 SPE-ANA SW

8、REG5V BT3.3V TYPE 1,2 BU3.3V CN901 SD SLOTSD3.3V SURGE DET Q102 BU DET Q301 Q101 ACC DET Q105 ILLUMI DET LINE MUTE D105 AM+B SHIFT LEVEL Q5-10 SERVO+B Q1,2 4VPRE+B Q91,92 BU3.3V SW3.3V Q302 Q103 PANEL3.3V Q301 BU3.3V BU3.3V or SW3.3V BU5V SWREG5V 4VPRE+B SERVO+B BU3.3V SW3.3V PANEL3.3V Q951 SD3.3V B

9、T3.3V USB5V SD3.3VBU3.3V SWREG5V SW3.3V FL+B REMOTE ILLUMI KEY CN DET USB CN J3 J1 CONNECTOR IC2 to GND AUX CN J2 USB5V J301 ILLUMI+B PANEL3.3V ROTARY ENCODER S1 SW3.3V FL+B MIC CN CN1 SWREG5V BU DET 1 1 2 PS1-1 ACC-DET OME-RC FRONT/REAR/NF PS1-2 PS1-3 P-ANT P-CON MUTE OEM RC ACC BU FRONT L/R REAR L

10、/R 2 (4MHz) 22198622 1 1333 1 2 2 5 ILLUMI P-ANT ACC ILLUMI MUTE OEM RC P-CON ILLUMI ACC MUTE P-ANT P-CON 4 PON-PAN3 PON-SW3 PON-4VPRE ILL-DET PON-PAN3 PON-4VPRE SD-PWR SW-VBUS PS1-3 PON-SW3 PON-SWERG ACC-DET LINE-MUTE ILLUMI-DET BU-DET PS1-1 PS2-1 SD PWR VBUS OCSW VBUS PON-SWREG FSEL PS2-1 PS1-2 LI

11、NE MUTE BU-DET FSEL VBUS-OC MAIN CLOCK = 48MHz (CRYSTAL 12MHz) SUB CLOCK = 32.768kHz (QUARTZ) (2.8V) 211 OEM RC 5 9 RadioFans.CN 收音机爱 好者资料库 3 KDC-348U/4751SD/BT41U/BT648U /U4549/U4549SD/U549BT/X395/X695 BLOCK DIAGRAM DPU1 CD PLAYER UNIT (X32-6250-02) BOARD MOTHER (X34- ) EF A C B TR COIL FO COIL APC

12、 IC4 16.934MHz CLOCK IC3 LOADING & MOTOR DRIVER MOTOR SPINDLE S2 S1 SLED MOTOR DM1 DM2 X1 Q1 RF AMP SERVO MP3 DECODER WMA DECODER 1M bit SRAM PROCESSOR AAC DECODER + + + + + LEVEL SHIFT RESISTOR FILTER FILTER D1.5V IC5 Q14 REG BU1.5V/ OUTPUT D3.3V VREF 12EJE-SW LOS-SW LOE-SW MOTOR LO/EJ A.GND TR OUT

13、 FO OUT DM OUT FM OUT A3.3V LD SIGNAL A/B/C/E/F S.GND S7.5V FO OUT TR OUT DM OUT FM OUT DRV MUTE SO SRAM STB SI BUCK CCE PIO0 R15 SRAM STB BUCK CCE PIO0 SO SI MRSTMRST C43 C44 Rch LchLch Rch ZDETMUTE L/R D.GND D GND BU1.5V D1.5V D3.3V AGND BU5V P.ON PD RadioFans.CN 收音机爱 好者资料库 4 KDC-348U/4751SD/BT41U

14、/BT648U /U4549/U4549SD/U549BT/X395/X695 COMPONENTS DESCRIPTION ELECTRIC UNIT (X34-696x-xx) Ref. No.Application / FunctionOperation / Condition / Compatibility IC1Power Supply ICOutputs 5Vx2, 8V, 8.3V, 10.3V, P-CON, P-ANT. IC213.3V AVR ICPower supply for BU+3.3V to -COM. IC51SW REGPower supply for D+

15、5.1V to USB and panel. IC71Hi-side SWUSB over-current detection. IC201System -COMControls FM/AM tuner, CD mechanism, panel, volume. IC202Reset ICLo when detection voltage goes below 2.8V. IC203E2PROMFor log memory. IC261iPod Authentication ICFor Apple authentication. IC3013.3V to 5VLevel shift. IC40

16、1E-VOLControls the source and volume. IC501ATomIC RDSTuner IC. IC601,6023.3V to 5VLevel shift. IC801Power IC Amplifi es the front L/R and the rear L/R to 50W maximum. IC8023.3V to 5VLevel shift. IC901BT LPF Bluetooth output low pass fi lter. IC9023.3V AVRPower supply for BT/SD+3.3V. IC921Switch ICMI

17、C switching signal (Panel microphone/ Rear microphone) Q1,2SERVO+B AVRWhen Q2s base goes Hi, AVR outputs 7.5V. Q3,4Control SW for SERVO+BON when Q3s base goes Hi. Q5,6Control SW for IC1ON when Q5s base goes Hi. Q7,8Control SW for IC1ON when Q7s base goes Hi. Q9,10Control SW for IC1ON when Q9s base g

18、oes Hi. Q51FREQ CONT SW for IC511.1MHz when the base goes Lo, 1.7MHz when the base goes Hi. Q91,924V PREOUT+B AVRWhen Q92s base goes Hi, AVR outputs 12V. Q93,94CONT SW for 4V PREOUT+BON when Q94s base goes Hi. Q101ACC DETON when the base goes Hi during ACC is applied. Q102Surge DETWhen the base goes

19、 Hi, surge voltage is detected. Q103BU DETON when the base goes Hi during BU is applied. Q104Mute CONTON when the base goes Hi. Q301PAN3.3V SWON when the base goes Lo. Q302SW3.3V SWON when the base goes Lo. Q701,702Pre-out Mute SWWhen one of 2 bases goes Hi, pre-out is muted. Q703,704Pre-out Mute SW

20、When one of 2 bases goes Hi, pre-out is muted. Q705,706Pre-out Mute SWWhen one of 2 bases goes Hi, pre-out is muted. Q707,708Mute Driver for Pre-outON when the base goes Lo. Q921MIC SW CONTRear MIC when the base goes Lo, panel MIC when the base goes Hi. Q951SD3.3V SWON when the base goes Lo. 5 KDC-3

21、48U/4751SD/BT41U/BT648U /U4549/U4549SD/U549BT/X395/X695 CD PLAYER UNIT (X32-6250-02) 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 wit

22、h built-in Audio DACWith built-in MP3/WMA/ACC decoder and 1M-bit-SRAM. IC5BU1.5V/D3.3V REG. Power supply for BU1.5V. Power supply for digital/analogue/audio 3.3V. Q1APC (Auto Power Control)Drives LD (Laser Diode). Q14D1.5V Output Switches ON/OFF at one end of BU1.5V line which is separated into 2 di

23、rections. Uses output voltage as D1.5V. D2Laser Diode Protection Prevents reverse bias which is applied to laser. Laser destruction prevention. D3,4Static Electricity CountermeasurePrevents malfunction by static electricity. COMPONENTS DESCRIPTION 6 KDC-348U/4751SD/BT41U/BT648U /U4549/U4549SD/U549BT

24、/X395/X695 MICROCOMPUTERS TERMINAL DESCRIPTION System -COM : IC201 (X34- : ELECTRIC UNIT) Pin No.Pin NameI/OApplication Truth Value Table Processing / Operation / Description 1,2NC-Not used 3AVSS-Reference GND for A/D converter Connects to GND even when A/D converter is not used 4VREFH-Reference pow

25、er supply for A/D converter Connects to +B even when A/D converter is not used 5RESETIReset input 6MODEIModeConnects to GND 7IPOD SDAI/OI2C data input/output for iPod authentication IC 8IPOD SCLOI2C clock output for iPod authentication IC 9IPOD RSTOReset signal for iPod authentication IC 10ROTARY CW

26、IVOL encoder inputPulse width detection 11VFD DATAI/OVFD data input/outputVFD data input/output 12VFD PAN DATAIVFD data inputVFD data input 13VFD CLKOVFD clock output125kHz 14ROTARY CCWIVOL encoder inputPulse width detection 15DVSS-GND 16VFD RSTOVFD driver reset output H: Reset cancelled, L: Reset M

27、omentary power down or panel detached or 11 minutes after ACC OFF: L 17VFD CEOVFD control request 18PON SW3I/OSW3.3V controlON: L, OFF: Hi-Z 19BSIF LRCKOBS LRCK output 20BSIF BCKOBS BCK output 21BSIF DATAOBS DATA output 22BSIF GATEOData transfer starting signal 23BSIF ST REQIData input request signa

28、l 24MIC SWOBT microphone switching (KDC-BT648U)L: Panel microphone, H: Rear microphone 25PON PANEL3I/OPAN3.3V control ON: L, Momentary power down or panel de- tached or 11 minutes after ACC OFF: Hi-Z 26NC-Not used Output L fi xed 27PANEL DETIPanel connection detectionH: No panel, L: Panel attached 2

29、8NC-Not used Output L fi xed 29CD BREAKOCD motor brakeqRefer to the truth value table 30CD LOEJOCD motor controlqRefer to the truth value table 31CD PONI/OCD mechanism power supply control outputH: Power supply ON, Hi-Z: Power supply OFF 32CD LOE LIM SWICD detection (Chucking SW)H: Loading completed

30、, L: No disc 33CD SRAM STBYODecoder SRAM standby controlL: SRAM standby 34CD REQICommunication request from mechanism DSPH: Data request 35CD LOS SWICD loading detection 36CD SOOSerial interface transmission 37CD SIISerial interface reception 38CD CLKOSerial interface clock output1MHz 39BEEPOBeep ou

31、tput2kHz/1kHz 40CD DISC12 SWI12cm disc detection 7 KDC-348U/4751SD/BT41U/BT648U /U4549/U4549SD/U549BT/X395/X695 Pin No.Pin NameI/OApplication Truth Value Table Processing / Operation / Description 41ZDET INI0-bit mute requestH: Mute request, L: Normal play 42CD RSTOCD mechanism resetH: Normal, L: Re

32、set 43CD CCEOCD mechanism chip enable 44CD DRIVE MUTEOCD motor driver mute output 45CD MOTOROCD motor switching controlqRefer to the truth value table 46NC-Not used Output L fi xed 47DVCC3-Power supply 48DVSS-GND 49,50NC-Not used Output L fi xed 51SD CDISD card insert detectionL: SD found 52SD PWRI/

33、OSD block power supply controlL: POWER ON, Hi-Z: POWER OFF 53BT RSTOBT module resetL: BT reset, H: Normal 53SD CSOCS output to SD 5456NC-Not used Output L fi xed 57PS1-1OPower supply IC controlwRefer to the truth value table 58PS1-2OPower supply IC controlwRefer to the truth value table 59PS1-3OPowe

34、r supply IC controlwRefer to the truth value table 60PS2-1OPower supply IC controlwRefer to the truth value table 61NC-Not used Output L fi xed 62FSEL1OSW-REG frequency switching 63NC-SW-REG frequency switching Output L fi xed 64PON SW-REGOSW-REG ON/OFFL: OFF, H: ON 65BT SYS DATAOData output to BT 6

35、5SD DOOData output to SD 66BT BT DATAIData input from BT 66SD DIIData input from SD 67SD CLKOClock output to SD 6870NC-Not used Output L fi xed 71ILLUMI DETIDimmer illumination detectionL: ON, H: OFF 72BU DETIMomentary power-down detection BU found: L, No BU or momentary power down: H (Operates less

36、 than 4ms after momentary power down) 73ACC DETIACC detectionACC found: L, No ACC: H 74NC-Not used Output L fi xed 75PON 4V-PREI/O4V-PRE power supply control (eXcelon model)H: ON, Hi-Z: OFF 76SA RSTOReset output for spectrum analyzerH: Reset cancelled, L: Reset 77SA CLKOClock output for spectrum ana

37、lyzer 78MUTE 0OFront direct mute L: Mute ON (Time constant solo setting: 10ms), H: Normal 79MUTE 1ORear direct mute L: Mute ON (Time constant solo setting: 10ms), H: Normal 80MUTE 2OOther direct mute L: Mute ON (Time constant solo setting: 10ms), H: Normal (Countermeasure against IC2 shock noise) MI

38、CROCOMPUTERS TERMINAL DESCRIPTION 8 KDC-348U/4751SD/BT41U/BT648U /U4549/U4549SD/U549BT/X395/X695 Pin No.Pin NameI/OApplication Truth Value Table Processing / Operation / Description 81MUTE AFSI/OAFS mute L: Mute ON (Time constant solo setting: 0.5ms), Hi-Z: Normal 82PWIC MUTEOPower IC mute STANDBY s

39、ource or momentary power down: L, TEL mute: L 83PWIC STBYOPower IC standby controlPOWER ON: H, POWER OFF: L 84PWIC DC ERRI Detection of power ICs +B and GND short- circuited 85LX DATA MOData to slave unitSIO mode transmission 86LX DATA SIData from slave unitSIO mode reception 87LX CLKI/OLX-BUS clock

40、SIO mode clock (125kHz or 107kHz) 88NC-Not used Output L fi xed 89DVCC3-Power supply 90DVSS-GND 91SW DIO-For on-board writing 92SW CLK-For on-board writing 93TRACE CLK-For debug 94TRACE DATA 0-For debug 95TRACE DATA 1-For debug 96TRACE DATA 2-For debug 97TRACE DATA 3-For debug 98AUD SDAI/OI2C data i

41、nput/output (E-VOL IC control) Communication with E2PROM for system -COM data keeping 99AUD SCLOI2C clock input/output (E-VOL IC control) Communication with E2PROM for system -COM data keeping 100LX RSTOForced reset to slave unitH: Reset, L: Normal 101LX MUTEIMute request from slave unitH: Mute ON,

42、L: Mute OFF 102LX REQ MOCommunication request to slave unit 103LX CONOStart-up request to slave unitH: Slave unit ON, L: Slave unit OFF 104USB PONOUSB P.ON outputH: ON, L: OFF 105USB OCIUSB over-current detectionL: Detected, H: Normal 106NC-Not used Output L fi xed 107MUTE PREOExternal preout muteO-

43、bit or momentary power down: L, L: Mute ON 108MUTE PRE SWOExternal preout mute (SUB)O-bit or momentary power down: L, L: Mute ON 109LX REQ SICommunication request from slave unitFor external interrupt 110TUN SDAI/OI2C data input/output (Tuner IC control) 111TUN SCLOI2C clock output (Tuner IC control

44、)I2C clock frequency: 200kHz 112REMOI Input signal of remote control reception and wired remote control Pulse width detection 113REMOIRemote control signal input Even pin No.112 is being short-circuited, input signal can be ignored in software 114REG VCC3-Power supply 115XT1ILow frequency resonator

45、connectionSub clock: 32.768kHz 116XT2OLow frequency resonator connectionSub clock: 32.768kHz 117CVCC3-Power supply 118X1IHigh frequency resonator connectionMain clock: 12MHz 119CVSS-GND MICROCOMPUTERS TERMINAL DESCRIPTION 9 KDC-348U/4751SD/BT41U/BT648U /U4549/U4549SD/U549BT/X395/X695 Pin No.Pin Name

46、I/OApplication Truth Value Table Processing / Operation / Description 120X2OHigh frequency resonator connectionMain clock: 12MHz 121DVCC3-Power supply 122DVSS/REGVSS-GND 123USB D+I/OUSB data connection 124USB D-I/OUSB data connection 125NM ININon-maskabe interrupt 126TEST1-For test Output L fi xed 1

47、27TEST2-For test Output L fi xed 128,129NC-Not used Output L fi xed 130AVCC3-Power supply 131SA INIInput data for spectrum analyzer 132AUD DC ERRIDC offset detection 133NC-Not used 134LINE MUTEILine mute detection TEL mute: Below 1V (Model without BT func- tion), NAVI mute: Over 2.5V 135138NC-Not us

48、ed 139TYPE 1IDestination switching 140TYPE 2IDestination switching 141,142NC-Not used 143SERIAL DETIFor serial number writing 144NC-Not used Truth value table q CD motor control CD MOTOR (Pin 45)CD LOEJ (Pin 30)CD BRAKE (Pin 29) StandbyLLL EjectHHL LoadHLL BrakeHH/LH w Power supply IC control SEL1 (

49、Pin No.10 of IC1) PS1-2 (Pin 58)PS1-3 (Pin 59)PS2-1 (Pin 60)ILLUMIP-CONP-ANT LLLOFFOFFOFF LLHONOFFOFF HLHONONOFF HHHONONON w Power supply IC control SEL1 (Pin No.11 of IC1) PS1-1 (Pin 57)AUDIO/SW5/AM LOFF HON HON MICROCOMPUTERS TERMINAL DESCRIPTION 10 KDC-348U/4751SD/BT41U/BT648U /U4549/U4549SD/U549BT/X395/X695 1. Panel ACCENTSEARCH RETURNVOL 2. How to enter each Test Mode Test Mode nameOperation Production Test ModePress and hold 1 key and 3 key and reset. Service Test Mode In the STANDBY source, while pressing and holding 2 key, press 6 key for 7 seconds. (Star