Kenwood-KDCX-579-Service-Manual(2) 电路图 维修手册.pdf

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1、 2003-12 PRINTED IN JAPAN B53-0118-00 (N) 764 CD RECEIVER KDC-X579 SERVICE MANUAL Plastic cabinet assy (A02-1486-13) Lever (D10-4589-04) x2 Screw set (N99-1730-15) DC cord (E30-6294-05) Screw set (N99-1719-05) Escutcheon (B07-3083-02) Mounting hardware assy (J22-0011-03) Panel assy (A64-3184-12) Rem

2、ote controller assy (RC-505) (A70-2040-05) CD MECHANISM EXTENSION CORD (24P) : W05-0934-00 MODELTDF PANEL No. TDF NAME KDC-X579Y33-1920-60TDF-45DX TDF PANEL INFORMATION Size AA battery (Not suplied) RadioFans.CN 收音机爱 好者资料库 2 KDC-X579 BLOCK DIAGRAM BUFFER Q101 RDS DECODER IC7 Q201 BUFFER IC1 (V-ILL O

3、NLY) DA CONVERTER IC2 REMOCON RESET SW ENCODER ROTARY S1 WITH LCD DRIVER KEY MATRIX IC1 LCD PANEL DET EJECT SW S1 EJECT ILLUMI DSI SYSTEM MICROPROCESSOR IC2 MPX E-VOL & EXT AMP DIMMER ACC DET TEL MUTE B.U DET PRE MUTE PRE MUTE PRE MUTE DRIVER MUTE IC6 POWER IC IC4 THERMAL PROTECT PRE OUT (REAR/NF) E

4、XT.AMP.CON DIMMER ACC TEL MUTE BACK UP AUX IN (REAR) 3PRE PRE OUT (FRONT) PRE OUT SP OUT SURGE DET SW REGCD MECHA+B SERVOSERVO+BSW 14V Q21 IC9 OPEL DISP I/F WIRED REMO/ SUPPLY IC IC3 POWER ANT CON P CON RESET IC8 SW 5V Q4 PANEL 5V Q152 SW5V S-METER AUDIO OUT IFC OUT PLL-DATA PLL-CLK SW5V AM+B A8V SW

5、3 SW2 SW1 MS CLK MS DATA M MUTE L SW4 M MUTE R LO/EJ M STOP MOSW M RST SERVO+B A8V BU5V CD MECHA+B DATA C CH MUTE CH RST REQ H REQ C CH CLK CH-CON DATA H BACK UP NOISE QUAL S-METER R DATA R CLK FM AM MP IN LEVEL CD QUAL AFS CH SW5V BU5V PANEL DET EJECT DSI L CLK L DATAS L CE L DATAL VOL A VOL B REMO

6、 V DATA V CLK O-CE O-DATA O-CLK PRE MUTE MUTE P-MUTE EXT.AMP.CON DIMMER PHONE ACC DET B.U DET BEEP PS1-0 PS1-1 PS1-2 PS2-0 PS2-2 RST FREE REAR FRONT BU5V BACK UP A8V AUX SW5V BACK UP AM+B FM+B ILLUMI A8V BU5V BU5V BU5V MODE CD,MP3 FM AM CH E-TYPE 3600mV 1372mV 855mV 3600mV K,M-TYPE 3600mV 1800mV 600

7、mV 3600mV TUNER CD CH SWITCH UNIT (X16- ) DAUGHTER UNIT (X89- ) RadioFans.CN 收音机爱 好者资料库 3 KDC-X579 BB BB A x2 A x2 D C E G F H J How to Disassemble (PANEL ASSY) 1) Remove four screws (A). 2) While holding the section (B) indicated with arrows, pull and remove PANEL ASSY. DISASSEMBLY FOR REPAIR 3) Pu

8、ll SWITCH UNIT (C) as indicated in the diagram and re- move knob (D). (The knob (D) is attached to the rotary with hook (E) and it is not possible to remove hook (D) only.) How to install knob (SRC) 1) Place knob (F) and knob (G) in the positions indicated in the diagram below. 2) While keeping thes

9、e positions, use a piece of adhesive tape (H) to hold knobs in position, as shown in the diagarma. 3) Set the rotary (J) position as shown in the diagram. 4) While keeping the letters “SRC” horizontally in position, set it to the rotary on the panel. 5) Remove the adhesive tape (H). RadioFans.CN 收音机

10、爱 好者资料库 4 KDC-X579 SWITCH UNIT (X16-2490-10) Ref. No.Application / FunctionOperation / Condition / Compatibility IC1LCD DriverDrives LCD IC2Remote Control ICControls the unit Q2REMO ON SWThe power supply of IC2 is turned on when base level goes “L” Q3Key Illumination SW (Green)Lights Green key-illum

11、ination when base level goes “H” Q4Key Illumination SW (Red)Lights Red key-illumination when base level goes “H” Q5Dimmer ControlLights LCD Back Light when base level goes “H” ELECTRIC UNIT (X34-3080-10) Ref. No.Application / FunctionOperation / Condition / Compatibility IC1System -COMControls FM/AM

12、 tuner, the changer, CD mechanism, Panel, volume and tone. IC2E.Vol & N.C.MPXControls the source, volume, tone and FM multiplex detector. Bu5V (5V), Audio8V (8V), FM+B (8V), AM+B (8V), P-CON, ANT-CON IC3Power Supply IC IC4Power ICAmplifies the front L/R and the rear L/R to 50W maximum. IC6Muting log

13、ic ICControls logic for muting. IC8Reset IC“L” when detection voltage goes below 3.6V or less. IC9SW RegulatorPower Supply for MP3 Q1Serge Detection “L” when the back-up voltage becomes more than 24V (momentary power down). “H” when the back-up voltage becomes less than 24V. Q2BACK-UP Detection “L”

14、when B.u is present. “H” when B.u is absent or momentary power down is detected. Q3ACC Detection“L” when Acc is present. Q4SW 5VON when the base is “L”. Q21Servo Regulator Q22Servo SW Q23Control Power Supply IC Q31Dimmer ControlDimmer ON when the base is “H”. Q32EXT.AMP ControlControls Ext.AMP by pu

15、lse width. Q41SW Regulator Control DSI lights when the base is “L”. Q151DSI DriverDSI turns off when the base is “H”. DSI turns on and off when panel is taken off. COMPONENTS DESCRIPTION SW1OUT 1.53.0Audio ON 3.55.0Audio P-CON ON 7.0Audio P-CON, P-ANT ON SW2OUT 2.03.0ILL FM ON 4.0ILL AM ON 5 KDC-X57

16、9 Ref. No.Application / FunctionOperation / Condition / Compatibility Q152Panel 5V SW When the panel is attached, the base goes “L”, turning the Tr ON to supply 5V to the panel. When panel is taken off, panel 5V cut off. Q153,154ILL ControlILL lights when the base of Q153 is “H”. Q201Noise buffer Q3

17、50 Pre and NF Mute SW Drives the Pre and NF Mute sw (Q351,355, 357) when the base is “L”. (not always Pre and NF) Q351Pre / NF Mute SWMutes the Pre Rear Lch or NF Lch when the base is “H”. Q352Pre / NF Mute SWMutes the Pre Rear Rch or NF Rch when the base is “H”. Q354 Pre and NF Mute SW Drives the P

18、re and NF Mute sw (Q352,356, 358) when the base is “L”. (not always Pre and NF) Q355Pre Mute SWMutes the Front Lch when the base is “H”. Q356Pre Mute SWMutes the Front Rch when the base is “H”. Q357Pre Mute SWMutes the Rear Lch when the base is “H”. Q358Pre Mute SWMutes the Rear Rch when the base is

19、 “H”. COMPONENTS DESCRIPTION SYSTEM MICROCOMPUTER : UPD703030GC044 (X34 : IC1) Pin No.Pin NameI/OApplication Truth Processing Operation Description value table 1PLL CLKI/OCLK output terminal to F/E 2Not usedO 3PANEL-DETIPanel DET terminalNo panel DET : L, Panel DET : H 4IC2 SDAI/ODATA input/output t

20、erminal with E-VOL 5IC2 SCLI/OCLK output terminal to E-VOL 6VDD- 7VSS- 8FLIP-DETIFlip DET terminalL : Panel DET, H : Panel flippable 9BEEPOBEEP output terminal 10REMOIRemote control input 11,12Not usedODestination other than E and E2 13L CEOCE output terminal for LCD driver MICROCOMPUTERS TERMINAL D

21、ESCRIPTION 6 KDC-X579 Pin No.Pin NameI/OApplication Truth Processing Operation Description value table 14,15Not usedONon variable illumination switch destination 16DSII/O EJECT KEY ILL, GUIDE ILL,FLIP-DET “H” and PANEL-DET is “L” : “H” / “L” DSI control terminalFLIP-DET “H” and PANEL-DET is “H” : “L

22、” 17DIM CONODimmer control terminal50ms interval : “H” / “L” 18TEST- 19ILL CONODuring FLIP DET ILL+B OFFDuring FLIP DET “L” : H 20VOL AIVolume key inputWhen looking at VOL, also look at FLIPDET 21VOL BIVolume key inputWhen looking at VOL, also look at FLIPDET 22MOSWOCD mechanism MOTOR IC SWLoading,

23、Eject, Brake : H 23LO/EJI/OCD mechanism LOADING, EJECT switchingSTOP, Brake : Hi-Z, Loading : L, Eject : H 24M STOPOSTOP request to CD mechanism 25M RSTOReset output terminal to CD mechanismNormal : H, Reset : L 26MUTEI/OMUTE terminalHi-Z : Mute ON, L : Mute OFF 27LOE/LIM SWICD DOWN SW DET terminalH

24、 : Chucking 28M-MUTE LIMUTE request terminal from CD mechanismL : Mute request 29M-MUTE RIMUTE request terminal from CD mechanismL : Mute request 30PANEL 5VI/OPanel 5V control terminalPanel DET : L, Detached, Momentary power down : H 31RESETINormal : H, Reset : L 32XT1I32kHz 33XT2I32kHz 34REGC-Conne

25、ct 1F condenser to GND 35X2I20MHz 36X1I20MHz 37VSS- 38VDD- 39CLKOUT- 40IC2 TYPE1IE-VOL setting switching terminal 41IC2 TYPE0IE-VOL setting switching terminal 4244TYPE2TYPE0IDestination switching terminale 45CD MECHA+BI/OPower supply control terminal for MP3ON : L, OFF : Hi-Z 46SW5VI/OControl termin

26、al for SW5VON : L, OFF : Hi-Z 47,48PS2-0, PS2-1OControl terminal for power supply ICw 4951PS1-0PS1-2OControl terminal for power supply ICq 52B.U-DETIMomentary power down DET terminalBU DET : L, BU no DET (momentary power down) : H 53ACC-DETIACC DET terminalACC DET : L, ACC no DET : H 54DIMMERISmall

27、DET terminalON : L, OFF : H 55BVDD- 56BVSS- 57EXT AMP CONO MICROCOMPUTERS TERMINAL DESCRIPTION 7 KDC-X579 Pin No.Pin NameI/OApplication Truth Processing Operation Description value table 58(SVR)OPOWER IC SVR control terminalMomentary power down : H 59P-MUTEOPOWER IC MUTE output terminalDuring POWER

28、OFF : L, During ALL OFF : L, When TEL MUTE : L 60P-STBYOPOWER IC STBY output terminalWhen POWER IC ON : H, OFF : L 61Not usedO 62PRE MUTE RORch PRE MUTE output When momentary power down : L, M-MUTE R : L (during CD), 2 zone : H fixed 63PRE MUTE LOLch PRE MUTE output When momentary power down : L, M-

29、MUTE L : L (during CD), 2 zone : H fixed 64AFSOConstant switching terminal at noise DETDuring FM seek and AF search : L, During reception : H 65O-DATAI/ONot used 66O-CLKI/ONot used 67O-CEI/ONot used 68LX_RSTOReset output to external devices Normally : L, System RST return, then after 400msec or more

30、 : H then L 69LX_CONOControl output to external devicesON : H, OFF : L 70AVCONTOAD reference voltage control outputWhile in operation : H 71AVDD- 72AVSS- 73AVREF-AD reference voltage control inputConnect to 70 pin 74PHONEIPHONE DET terminal TEL MUTE : 1V or lower, NAVI MUTE : 2.5V or higher 75TYPE3I

31、Destination switching terminal 7681Not usedI 82S-METERIS-meter DET terminal 83NOISEIFM noise DET terminal 84IFC-OUTIF/E IFC OUT input terminal 85LX_MUTEIMUTE request from external devicesH : MUTE ON, L : MUTE OFF 86LX_REQ_MORequest output to external devicesRequest DET : L 87Not usedONon RDS destina

32、tionOutput L fixed 88LX_REQ_SIRequest input from external devicesRequest DET : L 89KEY-REQICommunication request from LCD driverL : KEY input 90LO.S SWILoading start SW DET terminalLoading start : L 9112EJE SWI 12cm DISC EJECT position DET SW terminal 12cm DISC : L 12 or 8cm DET 92EJECTIEJECT DET te

33、rminalL : KEY input 93Not usedOOutput L fixed 94LX_DATA_SIDATA input terminal from external devices 95LX_DATA_MODATA output terminal for external devicesLast retention 96LX_CLKI/OCLK input/output terminal with external devices MICROCOMPUTERS TERMINAL DESCRIPTION 8 KDC-X579 Pin No.Pin NameI/OApplicat

34、ion Truth Processing Operation Description value table 97L DATALIData input from LCD driver 98L DATASODATA output terminal to LCD driver 99L CLKOCLK output terminal to LCD driver 100PLL DATAI/ODATA input/output terminal with F/E Truth value table q PS1-0PS1-1PS1-2AUDIOP-CONP-ANT LLLOFFOFFOFF H (L)L

35、(H)LONOFFOFF HHLONONOFF HHHONONON w PS2-0PS2-1ILLUMIFM+BAM+B LLOFFOFFOFF H (L)L (H)ONONOFF HHONOFFON e TYPE MODELDESTINATION 012 KDC-X579KLLL KDC-MP425KHLL KDC-MPV525KLHL KDC-MPV5025KLLL KDC-WV6027EHLH KDC-W6027ELLH KDC-W6027YELLH KDC-MPV7026MHHL KDC-MP6026MLHH MICROCOMPUTERS TERMINAL DESCRIPTION 9

36、KDC-X579 1. How to enter the test mode While holding the Preset 1 and Preset 3 keys, reset the unit. 2. How to exit from the test mode Reset the unit, momentary power down, ACC OFF, power OFF, and Panel detached. (Note) The test mode cannot terminated by Panel is fall down. 3. Initial status in the

37、test mode Sources: All OFF. Display: All segments are lit. Volume: -10 dB (displayed as 30) Loudness: OFF CRSC: OFF regardless of the presence of switching function. SYSTEM Q: Flat. BEEP: When pressing any keys, the buzzer generates a beep at any time. DISPLAY TYPE: TYPE A 4. RDS automatic measureme

38、nt An addition to disposal of substitute for visual check PS display as usual production lines. P-CON terminal is OFF by force, when received the PS data and in case of corrobaration PS display is “RDS_TEST”. (“_” is mean blank.) This disposal is test mode only. P-CON is switching the source or retu

39、rn with power onoff. 5. Special display in Tuner mode When any of the following messages is displayed in Tuner mode, the front end may be abnormal. “TNE 2P NG”: The EEPROM is set to the default (unstable values) because the F/E was shipped without passing through the adjustment process, etc. “TNCON

40、NG”: Communication with the F/E is not possible. 6. 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 dis- play shows these modes as follows. AUTO: FMA Forced Wide: FMW For

41、ced Middle : FMM Forced Narrow: FMN TEST MODE 7. CD Receiver Test Mode Specification When resetting to start, forced ejection of CD is prohib- ited. When a CD is in place, the CD is not recognized when reset. When this key is pressed, the mechanism jumps to the following track. No9 No15 No10 No11 No

42、12 No13 No22 No14 No9 (Return to the first track.) When this key is pressed, the track goes down by one from the currently played track. When a CD being played, by pressing 1 key intermittently, the mechanism can be made to jump to Track No. 28. 8. Audio-related specifications A short press of the Q

43、 key initiates the audio adjustment mode. Pressing the key on the remote initiates the audio adjustment mode. Fader is selected to the initial item. Continuous holding of a remote control key is inhibited. Bass, Middle and Treble are adjusted in 3 steps of -8/0/+8 with the Track Up/Down keys. Balanc

44、e is adjusted in 3 steps of L15/0/R15 with the Track Up/Down keys. Fader is adjusted in 3 steps of F15/0/R15 with the Track Up/Down keys. Volume Offset is adjusted in 2 steps of -8/0 with theTrack Up/Down keys. 9. Menu-related specifications A short press of the MENU key initiates the Menu mode. Exc

45、ept, tape source is usually press and hold 1 second to enter the menu mode and short press initiates turn over. Pressing the DNPP/SBF key on the remote initiates the Menu mode. Continuous holding of a remote control key is inhibited. Contrast is adjusted in 3 steps of 0/5/10 (5x7dot), 0/4/7 (14seg)

46、with the Track Up/Down keys. 10. Backup current measurement When the unit is reset while ACC is OFF (i.e. by turning Back-Up ON), the MUTE terminal goes OFF in 2 seconds in place of 15 second. 10 KDC-X579 11. Special display when the display is All ON Pressing the Preset keys while the power is All

47、OFF dis- plays the following information. 14seg 8 digits 1keyVersion display (8 digits, Month/Day/Hour/Minute) (Display) xxxxxxxx 2key 3keyShort press: View power ON time. (The All OFF period is not counted.) Long press/hold: Clear power ON time. (Display) PONxxxxxMax. 65535 (hours) 4keyShort press:

48、 Display TAPE operation time. Long press/hold: Clear TAPE operation time. (Display) TPTxxxxxMax. 65535 (hours) 5keyShort press: Display TAPE ejection count. Long press/hold: Clear TAPE ejection count. (Display) EJCxxxxxMax. 65535 (times) 6keyShort press: Display Panel open/close count. Long press/ho

49、ld: Clear Panel open/close count. (Display) PCxxxxxMax. 655359 (times) FM key Display ROM colection version (Display) ROM RxxxInvalid :ROM R 15x7dot 12 digits 1keyVersion display (8 digits, Month/Day/Hour/Minute) (Display) SYS_xxxxxxxx 2key 3keyShort press: View power ON time. (The All OFF period is not counted.) Long press/hold: Clear power ON time. (Display) PonTim_xxxxx Max. 65535 (hours) 4keyShort press: Display TAPE operation time. Long press/hold: Clear TAPE operation time. (Display) TPTim_xxxxxMax. 65535 (hours) 5k