Kenwood-KDC-122-P-Service-Manual 电路图 维修手册.pdf

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1、 2003-6 PRINTED IN JAPAN B53-0074-00 (N) 1445 CD RECEIVER KDC-1022 KDC-122P SERVICE MANUAL CD mechanism extension cord : W05-0618-00 COMPACT RDMLOUDREPSCAN OFF KDC-122P CRSC AMEAUTOADJCLK AUD 45Wx4 Panel assy (A64-3136-02): KDC-122P Front glass (B10-4437-01): KDC-122P Escutcheon (B07-3022-02): KDC-1

2、22P COMPACT RDMLOUDREPSCAN OFF KDC-1022 CRSC AMEAUTOADJCLK AUD 50Wx4 Panel assy (A64-3135-02): KDC-1022 Front glass (B10-4436-01): KDC-1022 Escutcheon (B07-3060-02): KDC-1022 DIGITAL AUDIO DIGITAL AUDIO DC cord (E30-4784-05) Mounting hardware assy (J21-9716-03) Lever (D10-4589-04)x2 Screw set (N99-1

3、719-05) RadioFans.CN 收音机爱 好者资料库 KDC-1022/122P 2 BLOCK DIAGRAM 1200mV 1200mV CD : 3600mV CH : 3600mVAM(E) : 855mV FM(E) : 1372mV FM(J,K) : 1800mV AM(J,K) : 600mV CHANGER KEY MATRIX WITH LCD DRIVER LCD REMOCON MI-COM CD ANT AM AGC FM AGC DECODER RDS RESET IC EEP-ROM TUNER,MPX & E-VOL. SUPPLY IC SW5V S

4、ERVO P-ANT P-CON POWER MUTE LOGIC DET ACC BU DET MUTE PRE POWER IC SP ACC UP BACK OUT OUT PRE IC1 DATA H MUTE DATA C REQ H CH-CON AUDIO OUT CLK REQ C RST BACK UP BU5V IC2 SW5V LO/S RST LOE/LIM MO LO/EJ STOP MUTE 8EJE SDA SCLK AUDIO OUT 12EJE Q501 Q502 AM+B FM+B AM AGC OUT IC6 CH CD SERVO BU5V A8V TU

5、NER OUT BU5V IC11 IC12 IC10 FM AGC OUT A8V SW2 SW1 ILLUMI VCC BU5V AUDIO+B AM+B FM+B BACK LIGHT KEY ILLUMI Q51,55 SW5V Q50 SERVO BU5V FM+B AM+B A8V P-CON P-ANT IC8 Q20 Q10 IC7 MUTE Q223,224 IC4 RadioFans.CN 收音机爱 好者资料库 KDC-1022/122P 3 COMPONENTS DESCRIPTION SWITCH UNIT (X16-2370-12/13) Ref. No.Applic

6、ation/FunctionsOperation/Condition/Compatibility IC1LCD driver & key matrix Q1Key scan startWhen Q1 base goes Lo, key scan start. ELECTRIC UNIT (X25-9600-13/14) Ref. No.Application/FunctionsOperation/Condition/Compatibility IC1System control -comSystem -com IC4Power amplifireE-Vol output encoder pow

7、er amplification for speaker. IC7Power supply (Multi AVR)- When a pin 1, 2, or 13 is “H”, MUTE turns on. IC8MUTE LogicWhen a pin 3, 4, or 5 is “H”, P-AMP mute turns on. Changer is RESET when a pin 9, 10, or 11 is “L”. IC10Tuner & E-Vol.FM/AM tuner & stereo decoder & E-Vol. IC11Power on resetWhen B.U

8、. 5V voltage is less than 3.5V, power reset. IC12E2P-ROMWriting and read-out of adjustment data for a tuner. Q10B.U. detectorBU on (base “H”) : Collector “H” Q20A.C.C detectorACC on (base : “H”) : Collector “L” Q40MUTE driverBase “L” : Mute on (collector “L”) Q50SW 5VBase “L” : SW5V on Q51SERBO AVR

9、controlPin 2 “H” : Serbo on (pin 4 “H”) Q55SERBO AVRBase “H” : Serbo on Q70Surge detectorBase “H” : Surge detect Q223,224MUTEBase “H” : Mute on Q251 Q501AM RF amplifireBase “H” : Gain UP Q502FM RF amplifireGate “H” : Gain UP MICROCOMPUTERS TERMINAL DESCRIPTION SYSTEM MICROCOMPUTER : UPD780058GC501 (

10、X25 : IC1) Pin No.NameI/ODescriptionProcessing Operation 1TDF DETIPanel detectionH : Panel detached, L : Panel attached 28EJE SWI H : Eject is completed Except 8cm CD model : always output L 3NCONot used (out put L) 4Avss H : Panel detached, L : RESET 5L-RSTOLCD driver RESET3 normal H , Power off L

11、When 7 seg model, output L 6L-CEOLCD driver selection H : Select (panel communication) When panel attached, output L RadioFans.CN 收音机爱 好者资料库 KDC-1022/122P 4 Pin No.NameI/ODescriptionProcessing Operation 7AVREF1 8NCNot used (connected to 9pin) 9IC10-DATAI/OIC10, E2PROM data communication3 non communi

12、cation : H 10IC10-CLKOIC10, E2PROM clock communication3 non communication : H 11L-DATALIData input from the LCD driver Non communication : H, When panel detached : L 3 Pull down on X25 unit, Pull up on X16 unit 12L-DATASOData output to the LCD driverWhen panel detached, output L 13L-CLKOClock output

13、 to the LCD driverWhen panel detached, output L 14R-DATAIData input from the RDSExcept RDS model : output L 15R-QUALIQuality input from the RDSExcept RDS model : output L 16CH-DATACIData input from the changer (new 5L)Except changer model : output L 17CH-DATAHOData output to the changer (new 5L) Whe

14、n non communication, last data keeping Except changer model : output L 18CH-CLKI/OClock input/output with the changer (new 5L) Check the old and new Except changer model : output L 19CH-REQHORequest output to the changer (new 5L) L : Requset Except changer model : output L 20NCONot used (output L) 2

15、1AFSONoise detection time constant switching terminal H : Normal, L : FM/AM seek and AF search 3 (When tuner SRC auto zero, L) 2224NCONot used (output L) 25CH-CONTOChanger control H : Changer on, L : Changer off Except changer model : output L 26TYPE REFO5V lines output for destination settingH : Du

16、ring destination reading 27SDITuner SD inputH : Station detected 28NCONot used (output L) 29TYPE2IDestination type selection terminal 2Refer to destination type list. 30TYPE1IDestination type selection terminal 1Refer to destination type list. 31TYPE0IDestination type selection terminal 0Refer to de

17、stination type list. 32TUNER-TYPE1IDestination available/genuine model rool offH : genuine model 1, L : available model 33Vss1 34TUNER-TYPE0IDestination available/genuine model noise cancelH : genuine model 0, L : available model 35MUTEOMute (E.Vol, Preset) control H : mute on, L : mute off Power of

18、f after that 15 second L 36M-DATAI/OData input/output with the CD mechanism3 non communication : H 37M-CLKOClock output to the CD mechanism3 non communication : H 38ADJOTuner lines adjustment When adjustment = H PS1-0, 1=LPS1-2, 2-0, 1=Hi-zIC10-DATA, CLK=Hi-z 39P-MUTEOPower IC mute control H : mute

19、off, L : mute on Power off after that 15 second H 40SVROPower IC servo controlH : When momentary power down detected, L : Nomal 41P-STBYOPower IC standby controlH : Power IC ON, L : Power IC OFF 42SW5VOSW 5V control H : SW5V OFF, L : SW5V ON Power off after that 10 second H 43B.U-DETIBack up detecti

20、on terminalH : power down, L : B.U. on 44ACC-DETIACC detection terminalH : ACC OFF, L : ACC ON MICROCOMPUTERS TERMINAL DESCRIPTION KDC-1022/122P 5 Pin No.NameI/ODescriptionProcessing Operation 45PS1-0O Power supply IC SW1 control 0 Audio 8V, P-CON 46PS1-1O Power supply IC SW1 control 1 Audio 8V, P-C

21、ON 47PS1-2O Power supply IC SW1 control 2 P-ANT Power supply IC SW2 control 0 48PS2-0O ILL, FM, AM 49PS2-1OPower supply IC SW2 control 1 ILL, FM, AM 50BEEPBEEP H : Light on, L : Light off, When panel attached, output L 51DSIODSI controlWhen panel detached, flashing at the panel (H/L) FIX model is ou

22、tput L 52,53NCONot used (out put L) 54LOE/LIM SWICD mechanism down & limit detectionH : Chucking detection, L : Normal 55MO SWOCD mechanism loading motor control outputH : Loading, Eject, Break, L : Play 56LO/EJI/OCD mechanism loading/Eject switching terminalH : Eject, L : Loading 57M-STOPOStop outp

23、ut to the CD mechanismH : Play, L : Stop 58M-RSTOReset output to the CD mechanismH : Normal, L : CD mechanism reset 59M-MUTEIMute input from the CD mechanismH : mute off, L : mute on 60RESETReset input from the System microcomputer 61REMOIRemote control input 62R-CLKIRDS clock inputExcept RDS model

24、: output L 63CH-REQCIRequest input from the changer (new 5L) H : Changer detection, L : Request Except Changer model : output L 64LOS SWICD mechanism loadings switch detectedH : No disc, L : DISK IN (Loading Start) 65KEY-REQIKey input detected (11pin L connected to the DATA L)H : Key no input, L : K

25、ey input (edge key data reading start) 6612EJE SWI12cm disc detectedL : 12cm disc 67Vss0 68VDD1 69X23 MAIN Xtal oscillating circuit3 4.19MHz Xtal connection 70X13 MAIN Xtal oscillating circuit3 4.19MHz Xtal connection 71ICTEST 72XT2Not usedOPEN 73XT1 74VDD0VDDConnected to VDD 75AVREF0 A/D converter

26、reference voltage control output, connection to the 80pin AVCONT 76S-METERIS-meter input 77NOISEIFM noise detection input3 78PHONEI2way mute 2.5V or greater : NAVI MUTE, 1.0V or less : TEL MUTE Except phone mute model : output L 79NCONot used (output L) 80AVCONTOA/D converter standard voltage contro

27、l outputH : During A/D converter active, Same timing with PON MICROCOMPUTERS TERMINAL DESCRIPTION BA4911 SW1Power supply IC output PS1-2PS1-1PS1-0A8VP-CONP-ANT LLLSTANDBY LL (H)H (L)ONOFFOFF LHHONONOFF HHHONONON BA4911 SW2Power supply IC output PS2-1PS2-0ILLUMIFMAM LLSTANDBY L (H)H (L)ONONOFF HHONOF

28、FON KDC-1022/122P 6 System -com Destination type list TYPE2TYPE1TYPE0MODEL NAME LLLKDC-2024SA/SYA, 2024SG/SYG UPD780058GC499 LLHKDC-2022, 2022V, 202MR LHLRY-391CD, RX-491CD LHHKDC-4023, 2023, 3023 LLHKDC-122, 122S, 1022, 122P UPD780058GC501LHHKDC-1023, 1023S HLHKDC-222, 222S LLLKDC-3024G/YG, 307G/YG

29、 UPD780058GC502 LHHKDC-3023R HLLKDC-3024A/YA, 307A/YA HLHKDC-4024/Y/V/YV UPD780058GC503LLLKDC-2094YA/YG H :R135R137R139 L :R136R138R140 MECHANISM MICROCOMPUTER : MN6627771KP (X32 : IC2) Pin No.NameI/ODescriptionProcessing Operation 1TVDOTraverse driver output (PWM output) 2SPLOSpindle motor drive ou

30、tput (PWM output) 3PCOSpindle motor ON outputL : ON, H : OFF (default) 4PWMOmulti-purpose PWM outputIts possible to setup the TOSF2 5TBALOTracking balance adjust output (PWM output) 6FBALOFocus balance adjust output (PWM output) 7NRFDETIRF detection signal inputL : detected 8OFTIOff-track signal inp

31、utH : detected 9BDOIDrop out signal inputH : detected 10LDONOLaser on signal outputH : ON, When command FO on, LDON is H 11DSLBODSL balance output 12DVDD1-Power supply for digital circuit 13DVSS1-Ground lines for digital circuit 14AVSS2-Ground lines for analog circuitFor DSL, PLL and AD 15DSLFI/OLoo

32、p filter terminal for DSLThe bias of ARF output terminal in one 16ARFIRF signal input 17RFSWIWhen DSL circuit, constant switch terminal 18PLLFI/OLoop filter terminal for PLL 19PLLF2I/OLoop filter characteristic switching terminal for PLL 20IREFIStandard voltage input terminal 21RFENVIRF envelope sig

33、nal inputAnalog input 22TRCRSITrack cross signal inputAnalog input 23TEITracking error signal inputAnalog input 24FEIFocusing error signal inputAnalog input 25AVDD2-Power supply for analog circuitFor DSL, PLL and AD 26AVSS1-Ground lines for analog circuitFor audio output (Lch and Rch in one) 27OUTRO

34、Rch audio output 28AVDD1-Power supply for analog circuitFor audio output (Lch and Rch in one) 29OUTLOLch audio output 30DVSS3-Ground lines for digital circuit 31CSELIOscillation frequency specification terminalH : 33.8488MHz, L : 16.9344MHz MICROCOMPUTERS TERMINAL DESCRIPTION KDC-1022/122P 7 Pin No.

35、NameI/ODescriptionProcessing Operation 32NCONot used 33ASELIAudio output polarity switching terminalL : Reverse, H : Non reverse 34MSEL0IDestination type selection port (set 2bit)Order “MSEL 0” and “MSEL 1” Set up 35MSEL1IDestination type selection port (set 2bit)Order “MSEL 0” and “MSEL 1” Set up 3

36、6ICRSTOReset control terminal for external DAC 37BCLKOBit clock output for serial data 38LRCKOL/R identification signal output 39SRDATAOSirial data output 40VREFPIA/D converter standard power supply input 41HOTITemperature protection detection terminal (AD input)Over C5(h) : on 428EJE_SWI8cm disc ej

37、ect stop detection terminalH : Stop 4312EJE/SDET_SWIJudge the 8cm or 12cm disc12cm disc stop detection terminal 44LOE/LIM_SWIPick-up inside detectedLoading end detection terminal 45PCKOPLL extracted clock output, etc 46EFMOEFM signal output, etc 47SENSEOOptics servo status signal output, etc 48CLVSO

38、Spindle servo phase synchronous signal output, etcL : Normal operation, H : Luff servo 49DEMPHODephase detection signal output, etcH : on 50DVDD2-Power supply for digital circuit 51X1IMain clock input terminal 52X2OMain clock output terminal 53DVSS2-Ground lines for digital circuit 54XSUB1IWhen exte

39、rnal DAC, external clock input terminal 55XSUB2O 56TEST1ITest port 1Normal operation is H fixed 57TEST2ITest port 2Normal operation is H fixed 58NCONot used 59VER/HOROPut length or breadth switching motor terminalH : Put length, L : Put breadth 60DRV_MUTEODriver mute control terminalL : MUTE ON, H :

40、 MUTE OFF 61/MUTE_LOAudio Lch MUTE outputL : MUTE 62/MUTE_ROAudio Rch MUTE outputL : MUTE 63/RSTILSI reset input terminalH : Normal, L : Reset 64OCD_CLKIWhen OCD connected, clock input 65/MSTOPIStandby detection terminalH : Normal, L : Mecha stop 66DATAI/OI2C bus data line (communication line with s

41、ystem computer)At that time serial writer connected 67SBIOIWhen connected to serial writer, data input terminal 68/CLKI/OI2C bus clock line (communication line with system computer)At that time serial writer connected 69TXODigital audio interface signal output 70EQCNTORF EQ switching terminalL : x2

42、times, H : x1 times 71XSELIDuring the external DAC connectionMCLK external input (H : input) 72MCNTICD mecha Loading/Eject control ON/OFFL : OFF (HOST control), H : mechanism control 73P-ONOAudio and servo origin power control terminalL : power on, H : power off 74MOTOROLoading/Eject control switchi

43、ng terminalAt that time LO/EJ is “H” 75LO/EJOLoading/Eject control terminal or output LWhen 72pin (P82) is “L”, output “L” 76CD-RWOCD-RW control terminalH : CD-RW, L : normal 77LDCNTOLD control terminalOperation is same LDON as timing 78DVDD3-Power supply for digital circuit 79FODOFocus driver outpu

44、t (PWM output) 80TRDOTracking driver output (PWM output) MICROCOMPUTERS TERMINAL DESCRIPTION KDC-1022/122P 8 Fig.3 (UNDER VIEW) Fig.2 Fig.1 (OVER VIEW) (REAR VIEW) (TUNER ANT) (A) (B) S-METER Check Land IC10 Vt Check Land FM-SG AM-SG L509 L508 L507 L506 L505 (C) DC Voltmeter ADJUSTMENT 1. IC10 (TDA7

45、513) -The Tuner adjustment method When IC10 and its circumference are fixed, according to the following order, it readjusts if needed. The adjustment item changes with parts to exchange. Please refer to “Parts vs Adjustment item table”. 1-1. VCO Coil Adjustment -Adjustment of Tunning Voltage Voltage

46、 Check Point: Vt-Check Land (PWB Side_B, around D506) Adjustment Coil: L507 (VCO Coil) The adjustment method : VCO coil is turned and adjusted according to the following tables. TypeModeFreq.VoltageFig. E/MAM1611kHz5.50.1(V)(C) KAM1700kHz5.80.1(V)(C) JFM90.0MHz5.60.1(V)(C) W (Wide Band)FM108.0MHz7.2

47、0.1(V)(C) M : AM Adjustment For Your Information : The frequency of SET is only set up by Pre-Set-Key in case this adjustment 1-2. Adjustment of 1st & 2nd-MIX Coil Voltage Check Point: S_METER-Check Land (PWB Side_B, around W572) Adjustment Coil: 1st IFT=L508 / 2nd IFT=L509 Setting of Signal Generat

48、or : Refer to the following tables TypeModeFreq.Mod.ANT InputFig. KAM1000kHzOFF35dBEMF(B),(C) E,M,J,WAM999kHzOFF35dBEMF(B),(C) qThe appearance and the coil with which S-METER DC volt- age serves as the maximum are turned and adjusted in the above-mentioned SG input. wBy the above-mentioned adjustmen

49、t method, same adjust- ment is performed to both sides (1st & 2nd MIX Coil). 1-3. Adjustment of FM_ANT & RF Coil Voltage Check Point: S_METER-Check Land (PWB Side_B, around W572) Adjustment Coil: ANT_Coil=L505 RF_Coil=L506 Setting of Signal Generator : Refer to the following tables TypeModeFreq.Mod.ANT InputFig. E/MFM87.5MHzOFF5 or 11dBEMF(A),(C) KFM87.9MHzOFF5 or 11dBEMF(A),(C) JFM76.0MHzOFF5 or 11dBEMF(A),(C) W (Wide Band)FM65.0MHzOFF5 or 11dBEMF(A),(C) qThe appearance and the coil with which S-METER DC volt- age serves as the maximum are turned and adjusted in the above-mentio