Kenwood-KDC-4019-Service-Manual(1) 电路图 维修手册.pdf

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1、CD RECEIVER KDC-319/4019 SERVICE MANUAL 2002-2 PRINTED IN KOREA B51-7908-00 (K) 1743 KDC-5020 The following reference numbers with accessory parts are the same reference numbers used on EXPLODED VIEW and PARTS LIST. 213 256 276200 222x2 Refer to the service manual X92-4430-0 x (B51-7889-00) for MECH

2、ANISM information. RC1 277 KDC-319 (K) KDC-319 KDC-4019 (K) KDC-4019 KDC-5020 (M) KDC-5020 DC1 RadioFans.CN 收音机爱 好者资料库 KDC-319/4019,5020 2 BLOCK DIAGRAM CH CD MECHA F/E FM+B PLL+B AM+B BUFF E-VOL SYSTEM u-COM DECODER RDS RST IC DET FLIP POSI MATRIX KEY G/R SW RST SW REMO ON BACKLIGHT LCD W-ILL DRIVE

3、R LCD REMO GUIDE ILLSW OPEN B.U.5VSW 5V SERVO +B PANEL 2WAY MUTE ACC DET. DIMMER TEL-MUTE ACC DIMMER POWER IC SP-OUT MUTE PRE-OUT (FRONT) PRE-OUT (REAR) MUTE PRE-OUT (NF/REAR) MUTE DRIVER OP-AMP SWITCHED PROTECTION THERMAL NOISE BUFFER 5V B.U. DET. SW 14 A 8V ILLUMI +B EJECT ILL/DSI (SW AND LED) EJE

4、CT KEY X89-252 X89-251 BACK UP ANT-CON ANT-CON P-CON P-CON Q1,2 Q3,4 IC7 IC1 & N.C. MPX IC2 Q6 IC8 Q906S1 ED1 IC2 IC1 Q708 Q706,707 Q901-903 Q501 Q502 Q703Q701,702 Q905 Q503,504 Q505-508 IC5 Q402 Q403,404 IC4 Q205,206 Q201-204 IC3, (NORMAL) DET FLIP LCD (NEGA) MATRIX KEY G/R SW RST SW REMO ON BACKLI

5、GHT LCD W-LED DRIVER LCD REMO ED1 IC2 IC1 X16-163 X16-167 X16-164 Q7 Q6Q2 Q3,4 LCD NEGA KDC-319/4019/5020 KDC-5020R/5021Y/YV KDC-419/X459 KDC-5021/5021V/506 5x7 TYPE14SEG TYPE DATA C CH-CON DATA H REQ H RST CLK REQ C SERVO+B PLL DATA PLL CLK M STOP M RST MUTE L LO/EJ MOSW SW2 SW3 SW1 S-METER IFC OUT

6、 SW 5V 3 PANEL DET GUIDE ILL MP IN AFS LEVEL RDDA FM AM A 8V B.U.5V A 8V 3 2 2 3 8 7 SW 5V 8 SDA SCL AUDIO OUT 7 BACK UP 2 REMO RESET B.U.5V MUTE DRIVER PANEL 5V PANEL 5V 5 CD AM+B FM+B S-METER RDCK RQUAL B.U.5V 5 B.U.5V FLIP DET L DATAS L CE L CLK L DATAL L-RES(L-INH) EJECT EJECT ILLUMI/DSI ILL ON

7、SW 5V (E) TYPE(K,M) TYPE CD (NORMAL) 3600mVCHANGER3600mV 3600mV 1800mV 600mV FM AM 1372mV 855mV 3600mV 2 2 2 B.U.5V 8 2 2 2 QUAL S-MUTE REAR L/R FRONT L/R AFS NOISE N/F SW PRE MUTE N/F MUTE P MUTE MUTE BEEP B.U.5V MUTE DRIVER P-ON PANEL 5V SW 5V CH-AUX MODE PRE OUT OUTPUT VOLTAGE PANEL 5V PANEL 5V 5

8、 DIMMER PWM CONTROL DIMMER 1.8V PRE 251mV (E) 470mV (K,M) 230mV 1200mV 1200mV RadioFans.CN 收音机爱 好者资料库 KDC-319/4019,5020 3 ELECTRIC UNIT (X25-921x-xx) REF. No. FUNCTIONOPERATION IC1SYSTEM u-COMSystem u-com. IC2E-VOL/NC/MPXE-volume, Noise Chancellor, Multiplexer. IC3MUTE4 inputs, 3 NOR gates. IC4POWER

9、 ICPower IC. IC5SWITCHING OP AMPSwitches operation amplifier. IC7RDS DEMODULATORDemodulates RDS. IC8RESET ICL when detection voltage goes below 3.0V. IC9EEPROMEEPROM. Q1FM+B SWQ1 turns on when Q2 base level goes H. Q2FM+B SWTurns on when FM signal exists. Q3AM+B SWQ3 turns on when Q4 base level goes

10、 H. Q4AM+B SWTurns on when AM signal exists. Q6IFC BUFFERShapes wave form. Q201PRE MUTE SW (FRONT Lch)Mutes when the base level goes H. Q202PRE MUTE SW (FRONT Rch)Mutes when the base level goes H. Q203PRE MUTE SW (REAR Lch)Mutes when the base level goes H. Q204PRE MUTE SW (REAR Rch)Mutes when the ba

11、se level goes H. Q205PRE MUTE SW (NON-FADER Lch)Pre mute SW. Q206PRE MUTE SW (REAR Rch)Pre mute SW. Q401E-VOL MUTE SWMutes E-vol when the base level goes H. Q402NOISE BUFFERBuffers noise. Q403,404AUDIO MUTE DRIVERTurns on when the base level goes L. Q501 BU & MOMENTARY POWER DOWN DETECTOR Turns on w

12、hen the base level goes H during the back-up effects. Q502ACC DETECTORTurns on when the base level goes H during ACC effects. Q503,504P-ANT SWQ503 turns on when Q504 base level goes H. Q505P-CON SWQ505 turns on when Q508 base level goes H. Q506P-CON PROTECTOR Protects Q505 by Q506 turning on when P-

13、CON output effect stops. Q507P-CON PROTECTOR Prevents Q507 turning on during being stand-by after turning power on. Q508P-CON SWQ505 turns on when Q508 base level goes H. Q510SMALL LAMP DETECTORTurns on when the base level goes H during illumination lights. Q701,702BU 5V AVRTurns on when the back-up

14、 effects. Q703SW 5VTurns on when the base level goes L. Q704,705AUDIO 8V & SERVO +B AVR ON/OFF SW Q704 turns on when Q705 base level goes H. Q706,707AUDIO 8V AVROutput voltage is 8.3V. Q708SERVO +B AVROutput voltage is 7.4V. Q901-903ILLUMINATION AVRAVR output turns on when Q901 base level goes H. Q9

15、05PANEL 5V SWTurns on when the base level goes L. Q906GUIDE ILLUMI SWTurns on when the base level goes L. Q907EJECT KEY & DSI ILLUMI SWTurns on when the base level goes L. COMPONENT DESCRIPTION RadioFans.CN 收音机爱 好者资料库 KDC-319/4019,5020 4 COMPONENT DESCRIPTION SWITCH UNIT (X16-163x-xx) REF. No. FUNCT

16、IONOPERATION IC1LCD DRIVERDrives LCD. IC2REMOTE CONTROLLERControls the unit. Q1KEY SCAN STARTTurns on when the base level goes L. Q2IC2 POWER SUPPLY SWTurns on when the base level goes L. Q3KEY GREEN ILLUMI SWTurns on when the base level goes H. Q4KEY RED ILLUMI SWTurns on when the base level goes H

17、. KDC-319/4019,5020 5 MICROCOMPUTERS TERMINAL DESCRIPTION PORT PORT NAMEI/OFUNCTIONOPERATING CONDITION No. 1TYPE 0IDestination switch.- 2TYPE 1IDestination switch.- 3FLIP DETIPanel open/close detection.H : Panel opened. L : Panel closed. 4AVSS-GND.- 5PANEL DETIPanel presence detection.H : Panel does

18、 not exists. L : Panel exists. 6E2P DETIEEPROM presence detection.H : ROM exists. L : ROM does not exist. 7AVREF 1IReference voltage.To BU 5V. 8CH DATA CIData from the changer.- 9CH DATA HOData to the changer.- 10CH CLKI/OClock signal from or to the changer.- 11L DATA LIData from LCD driver.Max 600K

19、Hz communication speed. 12L DATA SOData to LCD driver.Max 1.2MHz communication speed. 13L CLKOClock signal to LCD driver.- 14L CEOLCD driver enable.H : Driver selected. L : Driver non-selected. 15BEEPOBuzzer.- 16PLL DATAI/OData from or to the front-end.- 17L RSTOLCD driver reset.L : Reset. 18PLL CLK

20、OClock signal to the front-end.- 19GUIDE ILLUMIOGuide illumination control. L: Illumination turns on. H : Illumination turns off. 20EJECT ILLUMI/DSIOEJECT/DSI illumination control. L : Illumination turns on. H : Illumination turns off. 21PANELI/OPanel power supply control.L : Panel exists, ACC turns

21、 off. 22LO/EJI/OCD-mecha/Loading/Eject switch.L : Loading. H : Eject. 23MOSWOCD-mecha/Motor switch.H : Loading, eject, breaking. 24M MUTEILch mute request from CD mechanism. L : Mute. 25- 26M STOPOStop request to CD mechanism.L : Mechanism stop. H : CD playing. 27M RSTOCD mechanism reset.L : Reset.

22、28CD DOWNICD down switch detection.H : Chucking. 29ILLUMI ONOIllumination power control. H : Illumination turns on. L : Illumination turns off. 30IC2 TYPE 1IIC2 destination switch.L : Pure KENWOOD brand. H : Genuine. 31P-ONI/OSW 5V control.L : P-ON turns on. 32IC2 CLKOClock signal to IC2 or CD mecha

23、nism. - 33VSS 1-GND.- 34IC2 DATAI/OData from or to IC2 or CD mechanism.- 35R QUALIRDS QUAL.L : Model without RDS. 36R DATAIRDS data.L : Model without RDS. 37AFSONoise detection time constant switch. L : FM seeking, AF searching. H : Signal receiving. 38IC2 TYPE 0IIC2 destination switch.L : Pure KENW

24、OOD brand. H : Genuine. 39AM+BOAM power supply.H : AM signal receiving. 40FM+BOFM power supply.H : FM signal receiving. 41CH MUTEIMute request from the changer.H : Mute effects. 42CH RSTOReset signal to the changer.H : Reset. 43CH REQ HORequest to the changer.L : Requesting. 44CH CONOChanger control

25、.H : Changer controlled. 45DIMMER CONTODimmer control.H : Dimmer turns on. 46MUTEOMute.H : Mute effects. 47N/F MUTEONon-fader preout mute.L : Mute effects. 48PRE MUTEI/OFront/Rear preout mute.L : Mute effects. 49REMOTEIRemote control.- (X25-) IC1 : u-COM KDC-319/4019,5020 6 MICROCOMPUTERS TERMINAL D

26、ESCRIPTION PORT PORT NAMEI/OFUNCTIONOPERATING CONDITION No. 50N/F SWONon-fader switch.H : Rear. L : Front. 51P MUTEOPower IC mute.L : Power off, all off. 52SVROSVR control.H : Discharging. 53P STBYOPower IC stand-by control.H : Power IC turns on. 54ANT CONTOAntenna control.H : Tuner or the traffic i

27、nformation turns on. 55P CONOPower control.H : Power turns on. 56BU DETIBack-up detection.L : Back-up effects. 57ACC DETIACC detection.L : ACC effects. 58DIMMERIDimmer detection.L : Dimmer turns off. 59- 60RESETISystem u-com reset.L : Reset. 61EJECTIEject key.L : Key turns on. 62CH REQ CIRequest fro

28、m the changer.L : Requesting. 63R CLKIRDS clock.L : Model without RDS. 64KEY REQIPanel key interruption.L : Key requesting. 6512cm DISCI12cm DISC detection switch.L : 12cm disc exists. 66LOAD SWILoading switch detection.L : Loading starts. 67VSS-GND.- 68VDD-VDD.- 69X2-Main clock.Oscillates during tu

29、rning power on. 70X1Imail clock.- 71TESTIProgram power supply.- 72XT2-Sub clock.- 73XT1ISub clock.- 74VDD-VDD.- 75AVDD-Analogue VDD.- 76S METERITuner S-meter voltage.- 77NOISEINoise detection.- 78PHONEIPhone detection.TEL MUTE : Below 1V. NAVI MUTE : Over 2.5V. 79IFCIIFC.H : Station signal exists. 8

30、0TYPE 2IDestination switch.- (X25-) IC1 : u-COM KDC-319/4019,5020 7 TEST MODE 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, ACC OFF, power OFF and Panel detached. (Note) The test mode cannot be terminated

31、 by momentary power down. 3. Initial status in the test mode Sources: ALL OFF Display: All segments are lit. Volume: -10dB (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.

32、 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, etc. TNCON NG: Communication with the F/E

33、 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 Narr

34、ow: 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 Track Up key jumps to the following track numbers: No. 9 ? No. 15 ? No. 10 ? N

35、o. 11 ? No. 12 ? No. 13 ? No. 14 ? No. 9 (The cycle restarts from here.) Each press of the Track Down key jumps to the previous track number to the track being played. When the number of total trucks of the MP3 disc is less than 9, 1st truck is played. 7. Audio-related specifications A short press o

36、f the Q 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 Min / Center / Max with the Track

37、Up/Down keys. Balance is adjusted in 3 steps of Left Max / Center / Right Max with the Track Up/Down keys. Fader is adjusted in 3 steps of Rear Max / Center / Front Max with the Track Up/Down keys. 8. Menu-related specifications A short press of the MENU key initiates the Menu mode. Pressing the DNP

38、P/SBF key on the remote initiates the Menu mode. Continuous holding of a remote control key is inhibited. 9. Backup current measurement When the unit is reset while ACC is OFF (i.e. by turning Backup ON), the MUTE terminal goes OFF in 2 seconds in place of 15 second. (The CD mechanism is not activat

39、ed at this time.) 10. Special display when the display is all on Pressing the Preset keys while the power is ALL OFF displays the following information. Security-related information 1. Forced Power ON mode (All models) Even when the security (Mask key) is approved, resetting the unit while holding t

40、he ATT and Preset 4 keys makes it possible to turn the power ON for 30 minutes. After 30 minutes have elapsed, it is not possible to return to the previous condition unless the unit is reset again. 2. Method of registration of the security code after EEPROM (Tuner Unit Assy) replacement (Code securi

41、ty model) 1. Enter the test mode. (See 1. How to enter the test mode) 2. Press the MENU key to enter the Menu mode. Version display (8 digits, Month/Day/Hour/Minute) (Display)xxxxxxxx : System microcomputer Short press : View power ON time. (The All OFF period is not counted.) Long press/hold : Clea

42、r power ON time at the power ON time displaying. (Display)PON xxxxxMax. 65535 (hours) Short press : Display CD operation time. Long press/hold : Clear CD operation time at the CD operation time displaying. (Display)CDT xxxxxMax. 65535 (hours) Short press : Display CD ejection count. Long press/hold

43、: Clear CD ejection count at the CD ejection count displaying. (Display)EJC xxxxxMax. 65535 (times) Short press : Display Panel open/close count. Long press/hold : Clear Panel open/close count at the Panel open/close count. (Display)PC xxxxxxMax. 655350 (times) PRESET 1 PRESET 3 PRESET 4 PRESET 5 PR

44、ESET 6 KDC-319/4019,5020 8 TEST MODE 3. When the message Security is displayed, press and hold the Track Up/Down key for 1 second to enter the security registration mode. 4. Enter the code using the FM/AM/Track Up/Track Down keys. FM key: Number up Am key: Number down Track Up key: Cursor right shif

45、t Track Down key: Cursor left shift 5. Hold down the Track Up key for at least 3 seconds and the message, RE-ENTER appears, so once again enter the code according to Step 4 above. 6. Press and hold the Track Up key for 3 seconds until APPROVED is displayed. 7. Exit from the test mode. (See 2. How to

46、 exit from the test mode) (Note) All Clear is not applicable to the security code of this model. 3. Simplified method of clearing the security code (K Type only) 1. While the code entry is requested, press and hold the VOL UP key for 3 seconds while holding the DISP key pressed. (This should turn -

47、off.) 2. Enter KCAR from the remote. (Same way as the 01 model) Press the 5 key on the remote twice, then press the Track Up key. (This enters K.) Press the 2 key on the remote 3 times, then press the Track Up key. (This enters C.) Press the 2 key on the remote once, then press the Track Up key. (Th

48、is enters A.) Press the 7 key on the remote twice, then press the Track Up key. (This enters R.) 3. The security code is cleared and the unit enters the ALL OFF mode. 4. If you commit a mistake in the code entry, the unit enters the code request mode again. ABDFHJCEGI 2 1 3 5 7 4 6 1 55 27 30 3 12 4

49、 29 KI2 KS5 KI4 KS4 KI5 KS2 KI3 KI1 KS3 AUTO DISP 654321RSTAUD SRC AM FM ATT D18 D19 IC2 D5 D6 D7 D4D1 D2 D3 D11 D12 D13 D8 D9 D10 ED1 D20D22D21 X16-1630-10 (J74-1316-02) SWITCH UNIT R106 C610 C611 R611 L601 R202 R204 R201 R203 R226 R225 R219 R223 R217 R218 R224 1 8 9 1 16 69 R220 R912 R242 R911 R908 R907 R910 R909 R241 R903 R904 R906 R905 R243 R210 R212 R214 R215R213 R208 R206 R227 R237 R221 R216 R239 R222 R228 R632 R638 R639 R636 R637 R630 R623 R621 R617 R619 R628 R629 R627 R656 R704 R703 R650 R644 R640 R641 CP60 CP61 R647 R410 R411 R24