Kenwood-KDC-519-Service-Manual(2) 电路图 维修手册.pdf

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1、 2001-11 PRINTED IN JAPAN B51-7868-00 (S) 3420SERVICE MANUAL CD RECEIVER KDC-5019/519/8020 KDC-7021/7021Y/B7021 This service manual does not include information on the CD mechanism assembly (exploded view, parts list, schematic diagram or mechanism operation description). For such information, pleas

2、e refer to the CD mechanism assembly service manual (X92-4030-0X, X92-4440-0X : B51-7867-00). Front glass (B10-4157-01) Panel assy (A64-2578-02) Front glass (B10-4158-01) Panel assy (A64-2579-02) KDC-5019KDC-519 Front glass (B10-4162-01) Panel assy (A64-2583-02) Front glass (B10-4160-01) Panel assy

3、(A64-2581-02) KDC-8020KDC-7021/Y Front glass (B10-4163-01) Panel assy (A64-2584-02) KDC-B7021 DC cord (E30-4942-05) : KDC-7021Y (E30-4956-05) : KDC-7021/B7021 Antenna adaptor (T90-0523/0534-05) KDC-7021/7021Y/B7021 onlyScrew set (N99-1704-05) Screw set (N99-1722-05) Bracket (L) (J19-5051-03) KDC-501

4、9/519/8020 only Bracket (R) (J19-5052-03) Lever (D10-4562-04)x2 (D10-4621-04)x2: KDC-7021/B7021 Mounting hardware assy (J21-9716-03) Torsion coil spring (G01-2924-04) Plastic cabinet assy (A02-1497-13) Remote controller assy (A70-2025-05) Remote controller assy (A70-0886-15) Escutcheon (B07-3010-02)

5、 DC cord (E30-4940-05) : KDC-5019/519 DC cord (E30-4939-05) : KDC-8020 G RadioFans.CN 收音机爱 好者资料库 KDC-5019/519/7021/7021Y/8020/B7021 2 BLOCK DIAGRAM PLL+B FM+B Q43,44 Q45,46 AM+B DIMMER MUTE 2WAY DET. ACC BU DET. A8VA8V Q4-6 IC3 Q9 Q7,8 Q10-13 SERVO AVR SERVO+B SW5V Q3 Q50,51 Q30 Q1,2 SW5V BU5V BU5V

6、P CON ANT-CON Q26-29 MUTE IC8 Q32,33,35 DRIVER MUTE Q37-40 POWER IC IC4 SYSTEM MI-COM CD CH F/E A1,Q53 E-VOL IC2 PRE OUT SP-OUT DIMMER TEL-MUTE ACC ANT-CONT Q24,25 P-CONT BACK UP A-CONT P-CONT DECODER RDS IC1 IC14 Q52 EX.AMP CONTROL ILLUM +B RESET SW RESET IC IC16 IC2 IC1 Q7Q3,4 Q5 LCD DRIVER REMO G

7、/R SWDIMMER SW BUFFER NOISE Q36 OUTPUT VOLTAGE CONTROL EX.AMP Q14 Q15 Q31 (E,Z) TYPE (E,Z) TYPE (E,Z) TYPE (K,M) TYPE NAVI-MUTE PANEL 5V PANEL 5V KEY MATRIX SW14V SRM MECHA. SRM DRIVER MOTOR (BACK LIGHT) LCD ED1 CH QUAL SERVO+B MUTE R STOP SW2 LO/EJ MUTE L RST SW3 SW1 SDA SCL A8V BU5V SW5V RST REQ C

8、 CLK CH-CON DATA H REQ H CD AM FM P MUTE MUTE SW5V PANEL5V L DATAL L CE L CLK L DATAS DIMMER REMO RESET ILL+B SRM SW1 SRM DET SRM SW2 SRM SW3 SRM SUB- SRM SUB+ RDCK RDDA QUAL SDA SCL AFSAFS A8V PLL DATA PLL CLK IFC OUT S-METER SW5V SW5V DATA C BACK UP BU5V PANEL 5V CHANGER AM FM 230mV 1200mV 1200mV

9、251mV (E,Z) TYPE 470mV (K,M) TYPE AUDIO OUT NOISE CD3600mV 3600mV 855mV 1372mV 3600mV 3600mV 600mV 1800mV DRIVER MUTE MO SW LCD AVR (X16- ) IC15 (E,Z) TYPE (K,M) TYPE(E,Z) TYPE RadioFans.CN 收音机爱 好者资料库 KDC-5019/519/7021/7021Y/8020/B7021 3 COMPONENT DESCRIPTION G SWITCH UNIT(X16-154X-XX, X16-1892-7X)

10、Ref.No.Component NameApplication/FunctionOperation/Condition/Compatibility IC1LC75808WLCD driver with key matrix IC2RS-171Remote sensor IC Q1DTA114EUA or KRA302Key permission SWFor the key scanning start and the key detection SW Q32SC4081Red LED SWWhen a base goes Hi, RED LEDs are turned on. Q42SC40

11、81Green LED SWWhen a base goes Hi, GREEN LEDs are turned on. Q52SC4081VLCD AVRFor LCD driver IC Q6DTA114EUA or KRA302REMO SWWhile a base goes Lo, PAN 5V is supplied to the Remote sensor IC. Q7DTC143ZKDimmer SW Usually Q7s base goes Hi. When DIMMER mode is selected, pulse wave shape is applied to Q7s

12、 base. G ELECTRIC UNIT(X25-939X-XX, X25-8762-7X) Ref.No.Component NameApplication/FunctionOperation/Condition/Compatibility IC1UPD703033GC139System MI-COM. IC2TDA7407DE.VOL & N.C.MPX IC IC3M5237MLAVR ICIC is combined with Q4, and it works as the error detection, the driver. IC4TA8273HPower IC HD74HC

13、02FP IC8or TC74HC02AFMute logic2-input NOR x 4 or 74VHC02SJ IC14TDA7479DRDS decoder IC15LB1930MMotor driver IC IC16S-80837ANNPReset ICWhen BU 5V voltage is less than 3.7V, IC outputs Lo. Q12SB1548(P) BU 5V AVR While BACKUP is applied, AVR outputs +5V. Q22SC4081 or 2SD1819AQ1 and Q2 are inverted Darl

14、ington connection. Q32SA1576A or 2SB1218ASW 5V While a base goes Lo, SW 5V is supplied to the microprocessor peripheral circuits. Q42SB1548(P)A8V AVRQ4 is combined with IC3, and it outputs +8.3V. Q5DTC144EUA or UN5213 A8V AVR SW A8V AVR ON/OFF control Q6DTA124EUA or KRA303While Q5s base goes Hi, Q6

15、is turned on, and A8V AVR is working. Q7DTA124EUA or KRA303 A8V AVR and SERVO +B AVR ON/OFF control Q8DTC144EUA or UN5213 SW14V SWWhile Q8s base goes Hi, Q7 is turned on, A8V AVR and SERVO +B AVR are working. Q92SD2375SERVO +B AVRWhen Q9s base goes Hi, SERVO +B AVR outputs +7.6V. Q102SB1184 ILL +B A

16、VR While Q11s base goes Hi, AVR outputs +10.7V. Q112SC4081 or 2SD1819AWorks during POWER ON mode with a panel attached to the set. Q12DTC144EUA or UN5213 ILL +B SW ILL +B AVR ON/OFF control Q13DTA124EUA or KRA303While Q12s base goes Hi, Q13 is turned on, and ILL +B AVR is working. Q14DTA123JK or KRA

17、105SEXT. AMP CON. SW When a base goes Lo, Q14 is turned on, and control pulse waveform shape is outputted. Q15DTC144EUA or UN5213Small lamp detection SWWhen vehicle small lamps turn on, Q15 is turned on . Q24DTC114YUA or UN5214 ANT-CON. SW When Q24s base goes Hi, Q25 is turned on. Q252SB1277(Q,R)Wor

18、ks during the tuner reception mode. Q262SB1277(Q,R) P-CON SW When Q29s base goes Hi, Q26 is turned on . Q29DTC114YUA or UN5214Works during POWER ON mode. Q272SA1576A or 2SB1218AP-CON. protection SWProtect Q26 by turning ON when P-CON output is grounded. Q28DTA124EUA or KRA303P-CON. protection inhibi

19、t SWPrevents Q27 tuning ON during start-up after power ON. While BACKUP is applied, a base goes Hi, and Q30 is turned on. Q302SC4081 or 2SD1819ABU detection SWWhen momentary power down has detected, a base goes Lo, and Q30 is turned off. Q312SC4081 or 2SD1819AACC detection SWWhile ACC is applied, a

20、base goes Hi, and Q31 is turned on. Q32DTA124EUA or KRA303Mute driver for L Ch.When BU detection SW or System RESET or MI-COM.s Pre-mute is Q33DTA124EUA or KRA303Mute driver for R Ch.working, a base goes Lo, and Q32 and Q33 are turned on. Q35DTC124EUA or UN5212E. VOL mute SW When BU detection SW or

21、MI-COM.s mute is working, a base goes Hi, and Q35 is turned on. Q362SC4081 or 2SD1819ANoise buffer RadioFans.CN 收音机爱 好者资料库 KDC-5019/519/7021/7021Y/8020/B7021 4 Ref.No.Component NameApplication/FunctionOperation/Condition/Compatibility Q37DTC143TUA or KRC410Audio mute SW (Front L)When Q37s base goes

22、Hi, Pre-output is muted. Q38DTC143TUA or KRC410Audio mute SW (Front R)When Q38s base goes Hi, Pre-output is muted. Q39DTC143TUA or KRC410Audio mute SW (Rear L)When Q39s base goes Hi, Pre-output is muted. Q40DTC143TUA or KRC410Audio mute SW (Rear R)When Q40s base goes Hi, Pre-output is muted. Q43DTC1

23、24EUA or UN5212 FM +B SW When Q43s base goes Hi, Q44 is turned on, and A8V is supplied to the F/E. Q442SB1277(Q,R)Works during FM reception mode. Q45DTC124EUA or UN5212 AM +B SW When Q45s base goes Hi, Q46 is turned on, and A8V is supplied to the F/E. Q462SB1277(Q,R)Works during AM reception mode. Q

24、50DTC144EUA or UN5213 PAN 5V SW While a panel is attached to the set, Q50 and Q51 are turned on, and Q512SA1576A or 2SB1218ABU 5V is supplied to the panel. Q522SC4081 or 2SD1819AComposite signal output buffer Q53DTC144EUA or UN5213IFC bufferWaveform shaping KDC-5019/519/7021/7021Y/8020/B7021 5 MICRO

25、COMPUTERS TERMINAL DESCRIPTION G IC1(ELECTRIC UNIT : X25-939X-XX, X25-8762-7X) Pin No.Pin NameI/ODescriptionProcessing Operation 1AM+BOAM+B controlHi: During AM reception 2FM+BOFM+B control Hi: During FM reception, Hi: During FM reception if with RDS, RDBS 3AFSONoise detection time constant switchin

26、g terminal Hi: During FM reception, Lo: During FM seek or AF search 4PLL-DATAI/OData input/output with F/E 5PLL-CLKI/OClock output to F/E 6EVDD-Positive power supply connection terminalConnected to BU 5V lines. 7EVSS-Ground connection terminalConnected to GND lines. 8N.C.ONot used(N.C.) 9BEEPOBEEP s

27、ound output 10REMOIData input from the remote control light sensor 11PRE-MUTE LOPre-out mute control (L) When M MUTE L input is Lo during CD source selected, PRE MUTE L outputs Lo. 12PRE-MUTE ROPre-out mute control (R) When M MUTE R input is Lo during CD source selected, PRE MUTE R outputs Lo. 13IC2

28、-SDAI/OData line with IC2,CD mechanism MI-COM. 14IC2-CLKOClock line with IC2,CD mechanism MI-COM. 15,16N.C.ONot used(N.C.) 17DA-SDA / DIM-CONO Data output to D/A converter(V-LED model)Data line with D/A converter / Dimmer control output/ Hi: Dimmer OFF, Pulse wave shape: Dimmer ON 18TEST-Test termin

29、alNot used(Connected to GND lines) 19P-MUTEOPower IC mute control output Lo: Mute (during POWER OFF, ALL OFF, TEL MUTE) 20P-STBYOPower IC standby control output Lo: Power IC OFF, Hi: Power IC ON, ALL OFF mode 21MUTEOIC2 mute control outputOPEN(Hi): Mute ON, Lo: Mute OFF 22,23N.C.ONot used(N.C.) 24AC

30、C-DETIACC detection terminalLo: ACC ON, Hi: ACC OFF 25DIMMERISmall lights detection inputLo: During vehicle small lamps turn on. 26SW5VOSW 5V control outputLo: POWER ON mode Bass boost OFF_Hi: 160msec, Lo: 40msec 27EXT-AMP-CONTOExternal amp. control outputBass boost LOW_Hi: 130msec, Lo: 70msec Bass

31、boost HI_ Hi: 100msec, Lo: 100msec 28P-CONOPower control outputLo: POWER OFF mode, Hi: POWER ON mode 29ANT-CONOAntenna control outputHi: During TUNER mode or TI reception 30P-ONOSW 14V control outputHi: POWER ON mode 31RESETIReset input terminalLo: System reset 32XT1ISub clock resonator connection t

32、erminalClock count during POWER OFF mode 33XT2-Sub clock resonator connection terminal 34REGC- Capacitor conection terminal for regulator inside microprocessor Oscillation: POWER ON mode, Oscillation stop: 35X2-Main clock resonator connection terminalPOWER OFF mode or momentary power down detected 3

33、6X1IMain clock resonator connection terminal 37VSS-Ground connection terminalConnected to GND lines. 38VDD-Positive power supply connection terminalConnected to BU 5V lines. 39CLKOUTOInternal system clock outputNot used(N.C.) 40,41N.C.ONot used(N.C.) 42TYPE0IDestination type selection terminal 0 43T

34、YPE1IDestination type selection terminal 1 44TYPE2IDestination type selection terminal 2 45N.C.ONot used(N.C.) 46IC2 TYPE0IIC2 setting terminalLo: Initial value 47IC2 TYPE1IIC2 setting terminalLo: Initial value 48CH-REQHORequest output to changersLo: Request KDC-5019/519/7021/7021Y/8020/B7021 6 MICR

35、OCOMPUTERS TERMINAL DESCRIPTION Pin No.Pin NameI/ODescriptionProcessing Operation 49CH-RSTOReset output to changers : Reset 50CH-MUTEIMute request from changersHi: Mute request 51CH-CONOChanger controlLo: Standby mode, Hi: Operation mode 52ILL-ONOIllumination AVR on/off control outputHi: POWER ON mo

36、de except panel detached 53M-MUTE LIMute request (L Ch.) from CD MECHA. MI-COM.Lo: Mute request 54M-MUTE RIMute request (R Ch.) from CD MECHA. MI-COM.Lo: Mute request 55BVDD-Positive power supply connection terminalConnected to BU 5V lines. 56BVSS-Ground connection terminalConnected to GND lines. 57

37、M-RSTOReset output to CD mechanism MI-COM.Lo: Reset 58M-STOPOStop request to CD mechanism MI-COM.Lo: Stop mode, Hi: Operation mode 59N.C.ONot used(N.C.) 60LO/EJI/OCD mechanism loading/Eject switching outputLo: Loading, Hi: Eject, Hi-Z: Stop or Break 61MOSWOCD mechanism loading motor control outputHi

38、: CD loading/eject action or Break, Lo: other 62N.C.ONot used(N.C.) 63CD-SW3IDown & limit switch detection inputHi: Chucking, Lo: Pickup most inner position 64DA-SDA/NCOClock output to D/A converter (V-LED model)Lo: Panel detached, momentary power down detected 65LCEOCE output to LCD driver IC 66-69

39、 N.C.ONot used(N.C.) 70AV CONTOA/D converter reference voltage control outputHi: Active, Connected to AVREF terminal 71AVDD-A/D converter positive power supply connection terminalConnected to BU 5V lines. 72AVSS-A/D converter ground connection terminalConnected to GND lines. 73AVREFIA/D converter re

40、ference voltage input terminal 74PHONEIPHONE detection input1V or less: TEL MUTE, 2.5V or greater: NAVI MUTE 75SRM-SW3IMask mechanism position SW3 inputPanel: (SW1,SW2,SW3)=(Lo,Lo,Hi) 76SRM-SW1IMask mechanism position SW1 input Angle: (SW1,SW2,SW3)=(Hi,Hi,Lo) Eject: (SW1,SW2,SW3)=(Hi,Hi,Hi) 77SRM-SW

41、2IMask mechanism position SW2 inputMask : (SW1,SW2,SW3)=(Lo,Lo,Lo) 78SRM-DETIMask mechanism detection inputLo: Mechanism detected, Hi: mechanism not detected 79NOISEIFM noise detection input 80S-METERIS-meter input from F/E 81R-DATAIData input from the RDS decoder IC Except RDS, RBDS model: Not used

42、(pull down to GND lines) 82R-QUALIQuality input from the RDS decoder IC Except RDS, RBDS model: Not used(pull down to GND lines) 83IFC-OUTI F/E IFC OUT input terminalLo: Station detected, Hi: Not detected 84,85N.C.INot used(pull down to GND lines) Standby: (SRM+B,SRM-B)=(Lo,Lo) 86SRM-BOSRM mechanism

43、 submotor control output Clock wise: (SRM+B,SRM-B)=(Hi,Lo) Counter clock wise: (SRM+B,SRM-B)=(Lo,Hi) Break: (SRM+B,SRM-B)=(Hi,Hi) 87R-CLKIClock input from the RDS decoder IC Except RDS, RBDS model: Not used(pull down to GND lines) 88CH-REQCIRequest input from changersLo: Request 89KEY-REQICommunicat

44、ion request from LCD driver IC 90CD-SW1ILoading SW detection inputLo: Loading start 91CD-SW2I12cm disc detection SW inputLo: 12cm disc detected 92SRM+BOSRM mechanism submotor control output 93BU-DETIMomentary power down detection input Hi : When momentary power down detected or BU OFF Lo : BU ON 94C

45、H-DATACIData input from changers 95CH-DATAHOData output to changers 96CH-CLKI/OClock input/output with changers 97L-DATA LIData input from the LCD driver IC 98L-DATA SOData output to the LCD driver IC 99L-CLKI/O Clock output to the LCD driver IC /Panel detaching detection input(LCD Driver)Lo: Panel

46、attached 100PAN5VOPanel 5V controlHi: Panel attached, Lo: Panel detached KDC-5019/519/7021/7021Y/8020/B7021 7 KDC-5019/519/7021/7021Y/8020/B7021 8 TEST MODETEST MODE / ATTENTION 1. How to enter the test mode While holding the FM and Preset 6 keys, reset the unit. 2. How to exit from the test mode Wh

47、ile holding the Preset 6 key, reset the unit. (Note) The test mode cannot be terminated by ACC OFF, power OFF or momentary power down. 3. Initial status in the test mode Sources: ALL OFF Display: All segments are lit. Volume: -10 dB (displayed as 30 ) Loudness: OFF CRSC: OFF regardless of the presen

48、ce of switching function. SYSTEM Q: Flat 4. Special display in Tuner mode When any of the following messages is displayed in Tuner mode, the F/E may be abnormal. TNE2P NG : The EEPROM is set to the default (unstable values) because the F/E was shipped without passing through the adjustment process,

49、etc. TNCON NG : Communication with the F/E is not possible. 5. Forced switching of K3I Each press of the Preset 6 key in Tuner mode should switch K3I from AUTO Forced Wide Forced Middle Forced Narrow AUTO. The initial status is AUTO and the display shows these modes as follows. AUTO: FMA Forced Wide: FMW Forced Middle: FMM Forced Narrow: FMN 6. Test mode specifications of the CD receiver Forced ejection is inhibited in the reset start operation. When the unit is reset while a CD is loaded in it, the CD is not recognized by resetting. Each press of the Trac