Kenwood-DPX-6020-Service-Manual 电路图 维修手册.pdf

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1、CD CASSETTE DSP RECEIVER DPX-6020 SERVICE MANUAL 2001-7 PRINTED IN JAPAN B51-7779-00 (N) 1741 Refer to the service manual D40-1132-05 (B51-7505-00) for CASSETTE MECHANISM ASSYs information. CD CASSETTE DSP RECEIVER DIGITAL DIRECT CD EJECT SRC DSPEQFNC AUDSBF SCRL/B NRSCNRDM/BSREPM.RDM/MTLD.SCN 12345

2、6 DISP ATT COMPACT DIGITAL AUDIO TEXT PWR OFF OFF CRSC VOLUME NAME ANGLE RTN DISC EJECT CASSETTE DOLBY B NR ANGLE POSI R.SIZE DBB/SFC SFC LEVEL COMP KBS USER PRESET Bracket assy (J19-5121-04) : K Escutcheon assy (B07-3046-04) Escutcheon assy (B07-3047-04) : K Screw set (N99-1701-05) : M (N99-1711-05

3、) : K DC cord (E30-4886-05) Remote controller assy (A70-0900-05) Panel assy (A64-2427-21) : M (A64-2468-21) : K Knob (CDEJ) (K24-3778-03) Knob (CAEJ) (K24-3779-03) Knob (SRC) (K24-3777-03) Badge (B43-1284-04) Front glass (B10-4088-11) RadioFans.CN 收音机爱 好者资料库 2 BLOCK DIAGRAM SYSTEM u-COM M30622MC-A65

4、FP VOL BASS INPUT SEL ISO NC. MPX PWR AMP FRONT SP OUT REAR SP OUT MUTE TDA7386 PRE OUT FRONT E VOL, TONE, NC, MPXTDA7407 TRE MD/CD CHANGER DSP CXD2726Q VFD PANEL u-COM CD PACK MATRIX VOL SOFT MUTE M30805MG-214GP AMP-CTRL ANT CON SUB MOTOR DRIVER MM HA12216F F/E ANT. PLAY HEAD MODE PACK DET STBY PAC

5、K IN TAKEUP REELSUPPLY REEL REELTREELS RST SW SMALL DET ACC DET BU DET DSP3.3V FM8V SW AM8V SW P CON 5V SW A8V AVR D5V AVR SRV +B AVR DC/DC +B SW DC/DC DRIVER MOTOR MAIN E2PROM S-24C01AFJA REAR PRE OUT BUFF LEVEL MUTE DOWN & BUFF LPF LPF BUFF LPF BUFF HPFMUX VOL AMP SW 14V DSP3.3V AVR ILL +B AVR PAN

6、EL MOTOR DRIVER IC7 IC8 IC5 TDA7435 IC3 IC18 KEY 5V SW REMOCON 3.3V AVR IC15 IC1 IC2IC12 AVR IC1 IC2 ED2 IC4 IC5 IC17 SDA SCL RESET FSD FM SD PWIC SVR PWIC STBY TEST MUTE FM DET OUT DATA FM SD FSD CLK AM ANT FM ANT AUD +B FM +B AM +B PON 5V SW1-3 MRST MOTOR ANT CON P CON SMALL ACC B. U GND BU DET AC

7、C DET SMALL BU 5V +6dB (+2.4-3dB) DSP 5V BU 5V AM FM FM +B AM +B MOTOR - B. U B.U BU 5V AUD +B SDA SCL PON 5V BEEP DSP WRQ DSP PD DSP RST -0.5dB AUDIO OUT AMP-CTRL AMP-CTRL MOTOR +B CD SRV +B DSP(A) 3.3V AUDIO +B BEEP STBY TEST SVR SCL SDA FRONT REAR TAPE +15dB ANT CON BU 5V SC-CON SC DATA RTS AMUTE

8、 LO/EJ MSTOP F-IN(L) VREF(L) R-IN(L) F-IN(R) R-IN(R) SUBMAIN REV RchRch FWD Lch REV Lch FWD A OUT LB1641 AM TAPE FM CD CH SRV +B BU 5V AUD +B MOTOR +B DSP SO DSP CLK DSP WRDY P ON BU DET ACC DET SMALL ANT CON FM P CON ILLUMI AM FL PON CTS MC DATA PACK DET MAIN R REEL F REEL SUB- SUB+ MODE 1-3 EQ-MUT

9、E MSC MUSIC FWD/REV MTL DOLBY SW1-3 AMUTE MSTOP MRST LO/EJ MOTOR +11dB OTHER 2SB1188 2SB1188 PON 5V BU 5V REQH CHCLK DATAC REQC DATAH CHCON BU 2SB AM DET OUT REQ CE PLL REQ PLL CE PLL DATA PLL CLK PW MUTE DSP PD DSP WRQ DSP RST DSP CLK DSP SO DSP WRDY -12.4dB -0.5dB 9dB 9dB 9dB TAPE +15dB OTHER +11d

10、B SCL SDA P CON P ON P ON2 DSP(D) 3.3V ILLUMI ILL +B MOTOR + FRONT REAR REAR or N/F AUD +B 2SB1188 2SB1188 L4943 UPC BA5219 2SB123YK 2SB1548(P) 2SB1548(P) 2SB1448(Q,R) VREF(R) +B FAC ILL +B SW 5V SW 5V PON 5V +2dB +0dB +4dB +4dB: : : : REFCON P-MODE PM DET OPEN SW P-MODE REFCON PM DET OPEN SW LED LO

11、GO LED CD CD PACK LED TAPE MOTOR + MOTOR - SWITCH UNIT (X25-9100-20) DOLBY UNIT (X30-3000-00) CASSET MECHA CD MECHA (X16-1400-20) SUB PANEL UNIT MECHA PANEL LED DRIVER 300mV 160mV 400mV 1200mV AM : 160mV FM : 400mV 537mV 1687mV 1593mV 3193mV 59mV 100mV 169mV 319mV 1503mV 1592mV 507mV 3014mV 108mV 34

12、2mV 58mV 180mV 192mV 61mV 114mV 363mV CD CH TAPE FM AM 1511mV 475mV 798mV 254mV : : : : TAPE CD CH AM FM: : : : CD CH AM FM TAPE : : : : TAPE FM AM : : : CD CH : CD CH TAPE FM AM : : : : :AM CD CH FM TAPE : : : CD CH AM FM TAPE : : : : TAPE FM AM : : : 283mV 475mV 151mV CD CH : 900mV 1200mV 300mV CD

13、 TAPE : : DPX-6020 RadioFans.CN 收音机爱 好者资料库 3 Synthesizer Unit (X14-6770-XX) Ref.Parts No.NameFunction IC1M30622MC-A65FPSystem -COM IC2TDA7407E-VOL, HPF, LPF, INVVOL, LOUD, TONE, BAL, FAD, FM NC, MPX IC3L4943Power Source ICDigital : 5V, Audio : 8V, Tuner : 8V AVR, P-CON IC5TDA7435System ES IC7NJM4565

14、MDBuffer IC IC8CXD2726Q-1DSP IC IC9NJM4565MDLPF Filter IC10NJM4565MDLPF Filter IC11NJM4565MDLPF Filter IC12TDA7386Power Amp IC13NJM4580MDBuffer IC IC14PST9142NRE2PROM IC15S-24C01AFJARESET IC IC16TC7W32FUFor MUTE IC17BA5219BFP-YPanel mechanism drive IC IC18UPC29L33T3.3V Regulator Q1DTC144EUASurge det

15、ectionSurge detection voltage (18.218.9V) turns this component on. Q22SC4081BU voltage detectionB.U detection voltage (8.89.1V) turns this component on. Q32SC2412KACC voltage detectionACC detection voltage (8.28.5V) turns this component on. Q5DTC144EUAILLUMI detectionWhen small is turned on, this co

16、mponent is turned on. Q6DTA123JKAMP CTRL SW Q92SB1188(R)ANT CON SWWhen turned on, ANT CON is output. Q102SC4081(S)ANT CON SWWhen turned on, Q9 is turned on. Q112SC4081P-CON Short DET Q12DTB123YKP-ON 5V SWWhen turned on, P-ON 5V is turned on. Q13DTC124EUAP-ON 5V SWWhen turned on, Q12 is turned on. Q1

17、4DTC114EUASERVO 7.5V SWWhen turned on, Q15 is turned on. Q15DTA114EUASERVO 7.5V SWWhen turned on, Q17 is turned on. Q162SB1548(P)SERVO 7.5V AVRWhen turned on, 7.5V is output. Q172SC4081SERVO 7.5V AVRWhen turned on, Q16 is turned on. Q22DTC124EUAILL+B SWWhen turned on, Q23 is turned on. Q23DTA124EUAI

18、LL+B SWWhen turned on, Q25 is turned on. Q242SB1548(P)ILL+B AVRWhen turned on, ILLMI 10.5V AVR ON Q252SC4081ILL+B AVRWhen turned on, Q24 is turned on. Q26DTC114EUASW14V SWWhen turned on, Q27 is turned on. Q27DTA114EUASW14V SWWhen turned on, Q29 is turned on. Q282SB1416(Q,R)SW14V AVRWhen turned on, S

19、W14V AVR ON Q292SC4081(S)SW14V AVRWhen turned on, Q28 is turned on. Q32DTC124EKAM+B SWWhen turned on, Q33 is turned on. Q33CPH3105AM+B SWWhen turned on, AM +B is output. Q34DTC124EUAFM+B SWWhen turned on, Q35 is turned on. Q35CPH3105FM+B SWWhen turned on, FM +B is output. COMPONENTS DESCRIPTION DPX-

20、6020 RadioFans.CN 收音机爱 好者资料库 4 Ref.Parts No.NameFunction Q36DTC144EUAPanel detectionPanel voltage detection Q37DTA144EUACH12 switchingWhen turned on, A8V is output. Q38DTC144EUACH12 switchingWhen turned on, Q37 is turned on. Q412SD2114KMUTE SWWhen turned on, output of IC7 is muted. Q422SD2114KMUTE S

21、WWhen turned on, output of IC7 is muted. Q44DTC143TUAPREOUT MUTEWhen turned on, PREOUT MUTE (Rear Rch) Q45DTC143TUAPREOUT MUTEWhen turned on, PREOUT MUTE (Rear Lch) Q46DTC143TUAPREOUT MUTEWhen turned on,PREOUT MUTE (Front Rch) Q47DTC143TUAPREOUT MUTEWhen turned on,PREOUT MUTE (Front Lch) Q48DTC124EU

22、APW IC MUTEWhen turned on, PW IC MUTE Q49DTC144EKPW IC protection Q50DTC114YUASVR Discharge SWFrom STBY OFF, on within 5 seconds. Q51DTA124EUARESET detection SWWhen turned on, Q52 is turned on. Q52DTC114YKRESET detection SWWhen turned on, RESET Q53FMC2ASwitch for LOGO LEDWhen turned on, LOGO LED lig

23、hts up. Q54FMC2ASwitch for CD LEDWhen turned on, CD LED lights up. Q55FMC2ASwitch for TAPE LEDWhen turned on, TAPE LED lights up. Q59DTA114EUAMUTE detectionWhen turned on, MUTE Q60DTC124EUAMUTE detectionAt MUTE detection, Q59 is turned on COMPONENTS DESCRIPTION / MICROCOMPUTERS TERMINAL DESCRIPTION

24、Pin Pin Name I/O Description Processing Operation 1DSP RVDTODSP data output 2DSP_CLKODSP clock output 3CHCON1OExternal CH1 selectionH: CH1, L: Others 4CHCON2OExternal CH2 selectionH: CH2, L: Others 5DATAHOExternal CH data output 6DATACIExternal CH data input 7CHCLKI/OExternal CH clock input/output 8

25、BYTEIExternal data bus width switching 9CNVssIProcessor mode switching 10DSP_REDYIDSP write request 11DSP_RSTODSP Reset 12ResetIReset inputL: Reset 13XoutOMain system clock output 14VssIPower input 15XinIMain system clock input 16VccIPower input 17NCINot in use 18SP INTISpectrum analyzer reception p

26、ermission 19BU DETIB.U detectionH: Power down DPX-6020 3 (X14-)IC1:System -com 5 MICROCOMPUTERS TERMINAL DESCRIPTION (X14-)IC1:System -com PinPin NameI/ODescriptionProcessing Operation 20REQCIExternal CH reception request 21REQHOExternal CH transmission requestH: On 22PANTOPower antennal controlH: O

27、n 23PCONOExternal amp power controlH: On 24PONOPower controlH: On 25LAMPOLamp controlH: On 26AMP_CTRLOExternal amp controlH: On 27ACC DETIACC detectionH: ACC off 28BUZZOBeep ouput 29SCLOIC2 clock ouput 30SDAI/OIC2 data input/output 31PN MC DATA *OPanel -com communication data output 32PN SC DATAIPan

28、el -com communication data input 33PN RTSOPanel -com communication control 34PN CTSIPanel -com communication control 35PMOT1OPanel motor control 36PMOT2OPanel motor control 37REFCONOA/D reference voltage output 38PMDETIPanel mechanism detection 39OPEN SWIPanel full-open detectionL: Panel full-open 4

29、0PM VROPanel mechanism voltage congrolH: 5.1V, L: 7.2V 41PN SCCONOPanel -com communication control lineH: Panel Microcomputer stop 42MUTEOMUTEH: MUTE on 43LED CDOLED CD displayH: On 44LED TAPEOLED TAPE displayH: On 45 LED LOGOOLED LOGO displayH: On 46SP_REQOSPANA data output request to panel microco

30、mputer 47CD_SW3ICD mechanism SW3 detection 48CD MOTOROCD loading motor controlH: On 49CD_LO/EJI/OLoading/Eject controlL: Loading direction H: Eject direction 50CD_MSTOPOCD mecha controller stopL: Stop 51CD_MRSTOCD mecha controller resetL: Reset 52CD_AMUTEICD mute requestH: Mute request 53CD_SW1ICD m

31、echa SW1 detection 54CD_SW2ICD mecha SW2 detection 55TA DOLBYODolby selection SWH: DOLBY on 56TA MTLOMetal selection SWH: Metal, L: Normal 57TA_F/ROPlay direction selection SWH: RWD, L: FWD 58TA MUSICIBetween-music detection input SWL: Music 59TP MSCOCasettee between-music selection SWL: FF&REV 60TA

32、 EQ MUTEOEQ music selection SWH: MUTE on DPX-6020 6 MICROCOMPUTERS TERMINAL DESCRIPTION (X14-)IC1:System -com PinPin NameI/ODescriptionProcessing Operation 61SEL1IIC2III noise cancellation selection 62Vec-Power input 63NCONot in useL: Fixed 64Vss-Power input 65SEL2IIC2III noise cancellation selectio

33、n 66SEL3ILocation switchingH: M, L: J 67NCONot in use.L: Fixed. 68PACK_DETIPACK detection SWL: PACK 69TA_MODE1ICassette MODE1 detection SW 70TA_MODE2ICassette MODE2 detection SW 71TA_MODE3ICassette MODE3 detection SW 72TA_SMOTOR1OCassette sub motor control 1 73TA_SMOTOR2OCassette sub motor control 2

34、 74TA_MOTOROCassette main motor controlH: On 75NCONot in use.L: Fixed. 76PLL CLKOPLL clock ouput 77PLL DATAI/OPLL data input/output 78PLL_CEOPLL selection 79FMSDIFM station detectionH: Station 80PLL_REQOPLL seek selectionL: In seek 81FM+BOFM PowerH: FM 82AM+BOAM PowerL: AM 83PMUTEOPower IC MUTE cont

35、rolH: MUTE on 84ILLUMIIIllumination detectonL: Dimmer on 85LINE_MUTEIExternal MUTE requestL: Line MUTE on 86PCON_INIExternal amp peak current controlH: Protection on 87NCONot in use.L: Fixed. 88PWIC SVROPower IC controlH: On 89TESTOPower IC controlL: In test mode 90PWIC_STBYOPower IC standbyH: On 91

36、F_REELIReel pulse (FWD) detection SWVth: 2.5V 92R_REELIReel pulse (RWD) detection SWVth: 2.5V 93TAPE_DETITape detectionH: Tape (A/D input) 94CD_DETICD detection sensor inputH: CD (AD input) 95PMODEIPanel position sensor input(AD input) 96AvssIAnalog power input 97FSD OUTIS-meter inputH: Station (AD

37、input) 98Vref-A-D reference voltage input 99AvccIAnalog power input 100DSP_XLATODSP write request DPX-6020 7 (X25-)IC4:Panel -com PinPin NameI/ODescriptionProcessing Operation 1GSO1OFL dot section data output terminal 1 2GCLKOFL dot section clock output terminal 3NCONot used.L : Fixed. 4REMOIRemote

38、control signal input 5GSO2OFL dot section data output terminal 2 6NCONot used. 7GCLKIFL dot section clock input terminal 814NCONot used.L : Fixed. 15BYTE- 16CNVss- 17,18NCONot used.L : Fixed. 19RESET-Reset terminalL : Reset 20Xout- 21Vss-GND terminal 22Xin- 23Vcc-Power source terminal 24NMII 25NCONo

39、t used.L : Fixed. 26SP_REQOSpace analyzer enable output 27PN_SCCONISystem control communication panel action controlL : Action OK 28SP_INTOSpectrum analyzer data control request output 29GCPOFL dot section gradation generation 30GLATOFL dot section data latch output 31GBKOFL dot section data blankin

40、g outputH : Turned on, L : Turned off 3234NCONot used.L : Fixed. 35SP_CLKOSpectrum analyzer data output clock 36SP_DATA_INISpectrum analyzer data output 37NCONot used. 38PN_SC_DATAOSystem control communication data input terminal 39VccIPower source terminal 40PN_MC_DATAISystem control communication

41、data input terminal 41VssIGND terminal 42PN_RTSOPanel communication request output 43PN_CTSIPanel communication request input 44GSO3OFL dot section data output terminal3 45NCONot used.L : Fixed. 46GCLKIFL dot section clock input terminal 4751NCONot used.L : Fixed. 52NCINot used. 5355- 56SELIDestinat

42、ion switchingH : C-0050W, L : C-0066W 57Vss-GND terminal MICROCOMPUTERS TERMINAL DESCRIPTION DPX-6020 8 (X25-)IC4:Panel -com PinPin NameI/ODescriptionProcessing Operation 58NCONot used.L : Fixed. 59Vcc-Power source terminal 6062NCONot used.L : Fixed. 63RDOExternal memory read requestL : Read 64NC-L

43、: Fixed. 6568NCONot used.L : Fixed. 69CS0OExternal ROM CE terminalL : External ROM selection 70,71NCONot used.H : Fixed 72A20OExternal bus ADDR 20 73A19OExternal bus ADDR 19 74Vcc-Power source terminal 75A18OExternal bus ADDR 18 76Vss-GND terminal 7785A17A9OExternal bus ADDR 179 8690NCONot used.L :

44、Fixed. 91Vcc-Power source terminal 92A8OExternal bus ADDR 8 93Vss-GND terminal 94100A7A1OExternal bus ADDR 71 101NCONot used.L : Fixed. 102113D15D4I/OExternal bus DATA 154 114118NCONot used.L : Fixed. 119122D3D0I/OExternal bus DATA 30 123NCONot used.L : Fixed. 124128KS0KS4OKey scan output 04 129KR5I

45、Key return signal input 5 130Vss-GND terminal 131NCONot used.L : Fixed. 132Vcc-Power source terminal 133NCONot used.L : Fixed. 134KR0IKey return signal input 0 135PONOPower source control terminalH : POWER ON 136NCONot used.L : Fixed 137139KR1KR3IKey return signal input 13 140Avss-GND terminal 141KR

46、4IKey return signal input 4 142Vref- 143Avcc-Power source terminal 144NCINot used. MICROCOMPUTERS TERMINAL DESCRIPTION DPX-6020 PANEL MECHANISM DESCRIPTION A.Panel Opening 1. When Open button(switch) is pressed, the motor (PM1) rotates. 2. The rotation of the motor is transmitted forward through the

47、 rack gear (616) via the gears (620622) 3. When the rack gear (616) moves, the panel (PA1)goes down. 4. (1) The upper side of the panel pushed on the arm assembly (604) by the pin (2) and the groove of the rail (3). (2) The lock on the lever (A) is let go and the arm assembly (604) goes down. (3) Wh

48、en this happens, the planetary gear (603) ro- tates. 5. When the arm assembly goes down to the open po- sition, the switch (PS1) is turned on. When the switch (PS1) is turned on, the motor stops after 950ms. B.Closing Behavior 1. The motor rotates in reverse direction. 2. The arm assembly (604) goes

49、 up. When the lever (A) goes into the lock position of the rail (612), the arm assembly (604) stops going up. 3. When the arm assembly (604) stops, by the rotation of the planetary gear (603), the motor rotation pushes the rack gear (616) backward via the gears (620622). 4. By the close position information of the LPS (VR1), the motor (PM1) stops after 200mS. C.Angle Behavior 1. By the position information of the LPS (VR1), the panel angle is controlled. 608 2 3 609 620 621 616 602 PM1 604 1 3 612 603 620 PS1 604 604 4 3 608 A 604 2 2 1 2 3 4 612 604 608 604 609 620 621616 603