Kenwood-KDCX-769-Service-Manual(2) 电路图 维修手册.pdf

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1、CD mechanism extension cord : W05-0935-00 Mounting hardware assy (J21-9823-03) DC cord (E30-6062-05) Lever (D10-4674-04) x 2 Size AA battery (Not suplied) Plastic cabinet assy (A02-2731-03) Remote controller assy (RC-505) (A70-2040-05) Screw set (N99-1734-05) Escutcheon (B07-3079-01) Screw set (N99-

2、1723-05) CD mechanism operation description is not in this service manual. Please, refer to service manual X92-4030-0 x (B51-7867-00). s504 W DIGITAL AUDIO COMPACT Panel assy (A64-2980-01) Escutcheon (B07-3079-01) Panel assy (A64-3001-02) 2003-2 PRINTED IN JAPAN B53-0037-00 (N) 1459 CD RECEIVER KDC-

3、X769 SERVICE MANUAL RadioFans.CN 收音机爱 好者资料库 3 HOW TO THE PANEL MECHANISM ASSEMBLY 1. Fixed the position of operation side (Fixed the horizontal position when the panel opened) q The mounting hardware (281) of operation side is rota- tion (A) into the stop position with close side. w As figure (B) li

4、ne is just above and the gear (230) at- tached to pin. B A Rotary to the stop position 281 230 This line attached just above Fig. B (This figure from look at B arrow) C 284 702 SW D E F 702 SW 284 2. The slider assembly insert to bottom chassis q The bracket for display panel (284) is leave down, in

5、- sert to the chassis (702). (C) w The slider assembly insert to the chassis (702) after that shift (D) direction. e The bracket for display panel (284) is raised (E) direc- tion. r Keep the raising conditions, the slider assembly is shift (F) direction. (Note) Do not bend the knob of chassis detect

6、ion switch when the slider assembly insert. KDC-X769 RadioFans.CN 收音机爱 好者资料库 KDC-X769 3 BLOCK DIAGRAM BUFFER RESET SW KEY MATRIX u-COM MPX E-VOL & ACC DET B.U DET DRIVER MUTE POWER IC ACC BACK UP SP OUT (FL) RESET KEY ILL IC2 IC1 IC4 IC7 Q102,103 AM+B PRE MUTE PRE MUTE PRE MUTE PRE OUT (FRONT) PRE O

7、UT (REAR) (NF) PRE OUT AUX IN SP OUT (FR) SP OUT (RL) SP OUT (RR) EXT AMP DIMMERDIMMER EXT.AMP.CON ANT-CONANT CON P-CONP CON IC8 Q59,60 Q55,56 Q57,58 BU5V SW 5V SW 14V SERVO ILL+B SW REG A8V Q1,2 Q3 Q4,5 Q6-8 Q9,34 BU5V SW5V SW14V A8V SERVO IC14 MOTOR DRDR MOTOR IC13 ROTARY ENCODER LCD DRIVER IC2 EE

8、PROM EEP5V Q63 IC1 Q23,24 Q30 Q29 Q25,26 Q32 Q33 Q11-14 Q53 SW5V Q6 PANEL IC3 REMOCON WITH LCD DRIVER IC1 KEY MATRIX LCD OP AMP OP AMP OP AMP IC11 IC10 IC9 9V S-METER AUDIO OUT SERVO 8V BU5V CD4.7V BACK UP FM AM CD QUAL CH KEY BU5V 8V SW5V 8V 8V SW5V BU5V BU5V BU5V SERVO BU5V BU5VBU5VBU5V 9V 9V 9V T

9、UNER CD CH MECHA PANEL TDF UNIT (X16-208) (X16-214) (X25-968) (X16-219) SWITCH UNIT DISPLAY UNIT RadioFans.CN 收音机爱 好者资料库 KDC-X769 4 G SUB-CIRCUIT UNIT (X16-2080-10) Ref. No.Application/FunctionOperation/Condition/Compatibility IC1E2PROMFor security G SUB-CIRCUIT UNIT (X16-2140-10) Ref. No.Applicatio

10、n/FunctionOperation/Condition/Compatibility IC1LCD driverKEY Input IC2LCD driver IC3Remote control sensor Q1KEY scan start SWON when the base goes “L”. Q5, D26VLCD AVR Q6Remote control sensor power supply SWON when the base goes “L”. Q11Dimmer controlLCD back light control. OFF when the base goes “L

11、”, ON when the base goes “H”. G SWITCH UNIT (X16-2190-10) Ref. No.Application/FunctionOperation/Condition/Compatibility Q1DSI (Disabled System Indicator)DSI blinks when the base goes “H/L” Q2KEY illumination SW (GREEN)ON (KEY illumination green) when the base goes “H” Q3KEY illumination SW (RED)ON (

12、KEY illumination red) when the base goes “H” G ELECTRIC UNIT (X25-9680-10) Ref. No.Application/FunctionOperation/Condition/Compatibility IC1System -com IC2E-vol & N.C. & MPX IC3Regulator IC for A8V IC4Power IC IC6-9V AVR (DC/DC IC) for 4.5V Pre-out IC7Reset IC IC8Logic IC for muting IC911AMP for 4.5

13、V Pre-out IC13, 14Motor driver IC for panel mechanism IC15ROM ICFor ROM correction. Q1, 2B.U.5V AVRWhile BU is applied, BU5V AVR outputs +5V. Q3SW5VWhen Q3base goes Lo, SW5V outputs +5V. Q4, 5SW14VWhen Q5base goes Hi, SW14V outputs 14V. Q68AUDIO 8V AVRWhen Q6base goes Hi, A8V AVR outputs 8.4V. Q9, 3

14、4SERVO+B AVRWhen Q602base goes Hi, S+B AVR outputs 7.4V. Q1114ILL+B AVRWhen Q11base goes Hi, AVR outputs 10.5V. Q15, 16AUDIO 10.7V AVRWhen Q16base goes Hi, AVR outputs 10.7V. Q1719Pre-Amp -9V AVR Q18 and 19 works as a differential amplifier, Q17 works as a driver and -9.0V is supplied to OP amp for

15、Pre-out. Q2022Pre-Amp +9V AVR Q20 and 21 works as a differential amplifier, Q22 works as a driver and +9.3V is supplied to OP amp for Pre-out. Q23, 24P-ANT SWWhen Q23base goes Hi, P-ANT SW outputs 14V. Q25, 26P-CON SWWhen Q26base goes Hi, P-CON SW outputs 14V. COMPONENTS DESCRIPTION KDC-X769 5 Ref.

16、No.Application/FunctionOperation/Condition/Compatibility Q27, 28P-CON protectionProtect Q27 by turning on when P-CON output is grounded. Q29Ex Amp control buffer Q30Small lamp det SWWhen Q30base goes Hi, Q30 is turned on. Q32BU detWhen Q32base gose Hi, Q32 is turned on. Q33ACC detWhen Q33base gose H

17、i, Q33 is turned on. Q51, 52Mute driverWhen a base gose Lo, mute driver is turned on. Q53Noise buffer Q54E-vol mute SWWhen a base gose Hi, mute SW is turned on. Q5560Pre-out mute SWWhen a base gose Hi, Pre-out is muted. Q63E2P 5V SWWhen Q63base gose Lo, E2P 5V is out. Q102, 103AM+B SWWhen Q102base g

18、ose Hi, AM+B is out. COMPONENTS DESCRIPTION MICROCOMPUTERS TERMINAL DESCRIPTION G SYSTEM MICROCOMPUTER : UPD703030GC015 (X25-968 : IC1) Pin No.Pin NameI/OModulePurpose / DescriptionTruth tableProcessing Operation 1PLL_DATAI/OTunerData output/input with F/E. 2AM+BI/OPower supplyAM+B.AM operation : H

19、3(FM+B)OPower supplyFM+B (S01 F/E only). FM operation : H, Last FM : H (With RDS, RBDS model) 4V_ILL PAN_E2P DATAI/OTo panelV-ILL D/A converter (V-ILL, LCD), E2PROM data. 5V_ILL PAN_E2P CLKI/OTo panelV-ILL D/A converter (V-ILL, LCD), E2PROM clock. 6EVDD- 7EVSS- 8AFSOTunerNoise detection time constan

20、t switching.FM seek, AF search : L, Receiving : H, Auto 0 : L 9BEEPOAudioBeep output. 10REMOIExtraRemote control input (Panel, External display). 11P_MUTEOAudioPower IC MUTE output.Power OFF : L, All OFF : L, TEL mute : L 12(SVR)OAudioPower IC SVR discharge circuit control. Power OFF momentary power

21、 dropped : H (5 second) and then L CDCD mechanism data line. 13IC2_SDAI/OAudioIC2 data line. ExtraROM correction data line. CDCD mechanism clock line. 14IC2_CLKI/OAudioIC2 clock line. ExtraROM correction clock line. 15P_STBYOAudioPower IC STBY output.Power IC ON : H, Power IC OFF : L, All OFF : H 16

22、P_CONI/OExtraPower control.Power ON : H, Power OFF : Hi-Z, All OFF : Hi-Z 17DIMMER_CONTOTo panelDimmer control (W-LED only). Dimmer : Pulse control, Frequency : 1kHz, Normally : H 18TEST-Connect to GND. 19TYPE2IExtraDestination select.w KDC-X769 6 Pin No.Pin NameI/OModulePurpose / DescriptionTruth t

23、ableProcessing Operation 20MUTEOAudioMute output.ON : OPEN, OFF : L 21PRE_MUTELOAudioPREOUT (L ch) mute. M MUTE L is L : L (CD), Momentary power dropped : L, 2 zone, NAVI interrupt : Fixed H 22PRE_MUTEROAudioPREOUT (R ch) mute. M MUTE R is L : L (CD), Momentary power dropped : L, 2 zone, NAVI interr

24、upt : Fixed H 23BU_DETIExtraMomentary power dropped detection. Backup : L, No backup, momentary power dropped : H 24ACC_DETIExtraACC detection.With ACC : L, Without ACC : H 25SW5VI/OPower supply5V power supply.ON : L, OFF : Hi-Z 26EXT_AMP_CONTOExtraExternal amplifier control.Refer to external amplif

25、ier control. 27DIMMERIExtraSmall lamp detection.ON : L, OFF : H 28ANT_CONOExtraAntenna control.w Tuner ON : H, Other source With RDS last FM : H, Other source with RDBS TI ON last FM : H 29P_ONI/OPower supply SW 14V, SW 5V control, AD reference Power ON : H, Power OFF : Hi-Z voltage control output.

26、30ILL_ONI/OPower supplyFL, illumination output.ON : H, OFF : Hi-Z 31RESET- 32XT1-Sub clock.32.768kHz 33XT2-Sub clock.32.768kHz 34REGC-Connect to 1F capacitor. 35X2-Main clock.20MHz 36X1-Main clock.20MHz 37VSS- 38VDD- 39CLKOUT- 40LX_REQ_MOLXCommunication request to external slave.Request : L 41LX_MUT

27、EILXMute request from external slave.Mute ON : H 42LX_CONOLXExternal slave select.ON : H, OFF : L 43LX_RSTOLXReset output to external slave -com. Normally : L, After system reset : H (400ms or more) and then L 44NCONC (Without WMA, MP3 model)Output : L 45TYPE0IExtraDestination select.w 46TYPE1IExtra

28、Destination select.w 47IC2_TYPE0IExtraIC2 destination.w 48IC2_TYPE1IExtraIC2 destination.w 49NCONCOutput : L 50E2P5VI/OPower supplyE2PROM, DA converter power supply control.ON : L, OFF : Hi-Z 51DSII/OTo panelDSI control.ON : L, OFF : Hi-Z 52L_CEOTo panelChip enable output to LCD driver. 53L_INHOTo p

29、anelInhibit signal output to LCD driver.Normally : H, Reset, momentary power dropped : L 54VOL AITo panelVOL input. 55BVDD- 56BVSS- 57VOL BITo panelVOL input. MICROCOMPUTERS TERMINAL DESCRIPTION KDC-X769 7 Pin No.Pin NameI/OModulePurpose / DescriptionTruth tableProcessing Operation 58M_RSTOCDReset o

30、utput to CD mechanism.Normally : H, Reset : L (Per mechanism control) 59M_STOPOCDStop request to CD mechanism.Stop : L, CD : H 60CD_SW3ICDDC down switch detection.Chucking : H 61LO/EJI/OCDCD mechanism loading/eject switch.Stop, brake : Hi-Z, Loading : L, Eject : H 62MOSWOCDCD mechanism motor driver

31、switch.Loading, eject, brake : H 63FPM MOTOR BOP-mechaFPM mechanism (Slider) control.e 64FPM MOTOR FOP-mechaFPM mechanism (Slider) control.e 65FPM MOTOR OOP-mechaFPM mechanism (Angle) control.e 66FPM MOTOR COP-mechaFPM mechanism (Angle) control.e 67NCONC (Without external display model)Output : L 68

32、NCONC (Without external display model)Output : L 69NCONC (Without external display model)Output : L 70M_MUTERICDMute request form CD mechanism. (R ch).ON : L (CD) 71AVDD- 72AVSS- 73AVREF-Connect to P_ON (29 pin). 74M_MUTELICDMute request form CD mechanism. (L ch).ON : L (CD) 75PAN_DETITo panelPanel

33、E2PROM detection.With : L, Without : H 76NCINC (Without TEL-MUTE model)Connect to GND. 77FPM SW4IP-mecha FPM mechanism position detection, e 3.75V or more : No mechanism, mechanism detection.1.25V or more : H, Less than 1.25V : L 78FPM SW1IP-mechaFPM mechanism position detection.e 79FPM SW2IP-mechaF

34、PM mechanism position detection.e 80FPM SW3IP-mechaFPM mechanism position detection.e 81FPM PHOUTIP-mechaFPM mechanism position detection.eH : 2.2V or more 82S_METERITunerS-meter detection.Refer to S03 F/E control. 83NOISEITunerFM noise detection.Refer to S03 F/E control. 84IFC_OUTITunerF/E IFC OUT

35、input.With station : 2.5V or more, refer to S03 F/E control. 85NC (POWER_DET)IExtraPower IC DC offset detection.03 model not used. Connect to GND. 86NCONC (Except J type)Output : L 87NCINC (Without RDS, RBDS model)Connecto to GND. 88LX_REQ_SILXReceive request from external slave.Request : L 89KEY_RE

36、QITo panelCommunication request from LCD driver 90CD_SW1ICDLoading switch detection.Loading start power off : L 91CD_SW2ICD12cm disc detection switch.12cm disc power off : L 92NCINC (Without RDS, RBDS model)Connecto to GND. 93NCINC (Without RDS, RBDS model)Connecto to GND. 94LX_DATA_SILXData input f

37、rom external slave. 95LX_DATA_MOLXData output to external slave. 96LX_CLKI/OLXClock input/output with external slave. 97L_DATALITo panelData input from LCD driver. 98L_DATASOTo panelData output to LCD driver. 99L_CLKOTo panelClock output to LCD driver. 100PLL_CLKI/OTunerClock input/output with F/E.

38、MICROCOMPUTERS TERMINAL DESCRIPTION KDC-X769 8 Truth table w Destination port MODELDestinationDISPLAYTYPE2TYPE1TYPE0 KDC-X969KFL000 KDC-MP922KFL001 FX-9000JFL010 KDC-PSW9524EFL100 KDC-9023RM (E)FL101 KDC-X869KFL011 KDC-8024EFL- KDC-MP822KLCD-00 KDC-M7024ELCD-01 FX-5000JLCD-10 KDC-V7022KLCD000 KDC-X7

39、69KLCD001 KDC-722KLCD010 KDC-7024 ELCD011 KDC-7024Y KDC-8023M (K)LCD100 Note : When FL model using TYPE2, K & J type (with ANT_CON model) : L, E type (without ANT_CON model) : H Destination(IC2) TYPE0TYPE1 Market modelLL Market model CRSC modiificationLH OEM model CRSC modificationHL OEM model CRSC

40、and de-emphasis modificationHH e FPM MOTOR Slide FPM mechanism operation FPM MOTOR BFPM MOTOR F 00Standby 10Backward operation 01Forward operation 11Brake Angle FPM mechanism operation FPM MOTOR OFPM MOTOR C 00Standby 10Angle open direction 01Angle close direction 11Brake MICROCOMPUTERS TERMINAL DES

41、CRIPTION KDC-X769 9 TEST MODE G How to enter the test mode While pressing and holding the Preset 1 and Preset 3 keys, reset the unit. G How to exit from the test mode While holding the Preset 6 key, reset the unit. (Note) The test mode cannot be terminated by reset the unit, ACC OFF, power OFF and P

42、anel detached, momen- tary power down. G 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 presence of switching func- tion. SYSTEM Q : Flat WOW : All OFF BEEP : When pressing any keys, t

43、he buzzer generates a beep at any time. AUX : ON MENU SYSTEM Q : OFF Variable model : Default is white Multifunction : Source dependency (Preset, SCAN, etc.) G 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 EEPRO

44、M is set to the default (unstable values) because the F/E was shipped without passing through the adjustment process, etc. “TNCON NG” : Communication with the F/E is not possible. G Forced switching of K3I Each press of the Preset 6 key in Tuner mode should switch K3I from AUTO Forced Wide Forced Mi

45、ddle 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 G Test mode specifications of the CD receiver Forced ejection is inhibited in the reset start operation. When the unit is reset while

46、 a CD is loaded in it, the CD is not recognized by resetting. Each press of the Track Up key jumps to the following track numbers: No. 9 No. 15 No. 10 No. 11 No. 12 No. 13 No. 22 No. 14 No. 9 (The cycle restarts from here.) Each press of the Track Down key jumps to the previous track number to the t

47、rack being played. When the number of total trucks of the MP3 disc or the WMA disc is less than 9, 1st truck is played. When the disc media is CD, A short press of the Preset 1 key jumps to the track number 28. When the model is equipped the CD mechanism assembly adapted for MP3 or MP3/WMA disc, the

48、 mechanism name and version number are displayed during the FL model is lower stand and Display mode of LCD model is DNPS. G Audio-related specifications Pressing the key on the remote initiates the audio adjust- ment mode. BL/F key on the Fader initials. Continuous holding of a remote control key i

49、s inhibited, and workings are short press of any keys. Bass, Middle and Treble are adjusted in 3 steps of -8 / 0 / +8 with the Track Up/Down keys (Default value at 0). Balance is adjusted in 3 steps of L15 / 0 / R15 with the Track Up/Down keys (Default value at 0). Fader is adjusted in 3 steps of R15 / 0 / F15 with the Track Up/Down keys (Default value at 0). HPF is adjusted in 2 steps of OFF / 170Hz (or 220Hz) with the Track Up/Down keys (Default value at OFF). LPF is adjusted in 2 steps of OFF / 120Hz with the Track Up/Down keys (De