Kenwood-KDC-7080-R-Service-Manual(2) 电路图 维修手册.pdf

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1、 2000-1 PRINTED IN JAPAN B51-7573-00 (N) 1895 CD RECEIVER SERVICE MANUAL KDC-7080R/RY KDC-7080RV/RYV KDC-7080R DISP Escutcheon assy (B07-2139-03) Panel assy KDC-7080R/RY : (A64-1866-02) KDC-7080RV/RYV: (A64-1953-02) Dressing panel (A21-4010-03) DC cord KDC-7080R/RY : (E-30-4788-05) KDC-7080RV/RYV: (

2、E-30-4789-05) Torsion coil spring (G01-2924-04) Screw set (N99-1683-05) Mounting hardware assy (J21-9491-03) Plastic cabinet assy (A02-1489-03) Lever (D10-4301-14) Lever (D10-4302-14) Antenna adaptor (T90-0523-05) Remote controller assy (A70-0886-15) Front glass KDC-7080R/RY : (B10-3105-01) KDC-7080

3、RV/RYV: (B10-3106-01) Illustration is KDC-7080R Extension cordParts No. CD mechanism (22P)W05-0618-00 The MECHANISM OPERATION DESCRIPTION is the same as model KDC-S3007 and KDC-5050RG. Please refer to the service manual for model KDC-S3007 (B51-7029-00) or KDC-5050RG (B51-7099-00). RadioFans.CN 收音机爱

4、 好者资料库 KDC-7080R/RY/RV/RYV 2 BLOCK DIAGRAM COM+B FM+B AM+B E2PROM DIMMER 2WAY MUTE ACC DET. SRMPHOT BU DET. SRM DRIVER A8V SERVO DC/DC SW14V SW5VBU5V P CON ANT-CON MUTE DRIVER 4.5V PREMUTE Es POWER IC IC4 IC14 u-com IC1 CD CH IC10 IC7-9 IC5 IC2 F/E MECHADET. E-VOL PREOUT SP-OUT DIMMER TEL-MUTE ACC A

5、NT-CONT P-CON BACK UP DECORDER RDS IC11 EX.AMP CONTROL AVR RESET IC IC15 ANT. IN AMP IC12 NOISE PREOUT OUTPUT VOLTAGE CONTROL EX.AMP NAVI-MUTE PANEL 5V 4.5VPRE IC3 IC6 ILLUM +B LCD LCD CONT. 1 G/R SW KEY MATRIX LCD TYPE LOCK SW PANEL REMO RESET SW PLL CLK CH MO SW SERVO+B LO/EJ STOP MUTE DATA S CLK

6、SW2 CS SQR DATA M SW3 SW1 A8V BU5V RST REQ C CLK CH-CON DATA H REQ H CD AM FM MUTE RESET SRM SW1 SRM DET SRM SW2 RDCK RDDA QUAL SDA SCL A8V +B -B +B -B PLL DATA PLL CE S-METER SW5V SW5V DATA C BACK UP 750mV 4500mVCHANGER AM 4.5V PRE 2250mVFM 160mV 1200mV 1200mV 213mV (E TYPE) 400mV (K TYPE) RDS OUT

7、FM+B NOISE 4500mVCD K TYPEMODE 4500mV 4500mV 1069mV 1715mV E TYPE 3600mV 600mV 1800mV 3600mV K TYPEE TYPE 3600mV 1372mV 855mV 3600mV 1.8V PRE SRM SUB- SRM SUB+ DRIVER MUTE BU5V PANEL 5V DIMMER PWM CONTROL ILLUM +B IS LCD ONLY RST L DATAL L CLK L CE L DATAS DIMMER (X86) RadioFans.CN 收音机爱 好者资料库 KDC-70

8、80R/RY/RV/RYV 3 MICROCOMPUTERS DESCRIPTION System -com : UPD784217GC (X25-) Terminal description No.Pin nameFunctionI/ODescriptionProcessing Operation 1P120/RTP0CHCON1OChanger 1 controlActive : Hi 2P121/RTP1CH_MUTEIChanger muting inputMUTE Requested : Hi 3P122/RTP2REQHOHandshake request to changersA

9、ctive : Lo 4P123/RTP3ILL_ONOIllumination outputActive : Hi 5P124/RTP4NCOOpen 6P125/RTP5CD_SW2I12cm DISC detectionON : Lo 7P126/RTP6CD_SW1ILoading detectionON : Lo 8P127/RTP7NCOOpen 9VddVdd-Positive power supply 10X2X2-Main clock connection 11X1X1-Main clock connection 12VssVss-GND 13XT2XT2-Sub clock

10、 connection 14XT1XT1-Sub clock connection 15RESETRESETIReset inputActive : Lo 16P00/INTP0CH_RSTOChanger reset outputActive : Lo 17P01/INTP1R_CLKIRDS clock input 18P02/INTP2/NMIREQCIHandshake request from changerActive : Lo 19P03/INTP3N CI/O 20P04/INTP4N CI/O 21P05/INTP5N CI/O 22P06/INTP6SC_REQIHands

11、hake request from panel -com 23AVddAVdd-A/D analog power supply 24AVref0AVref-A/D reference voltage input 25P10/ANI0PHONEIPHONE detection terminal 1V or less : PHONE 2.5V or more : NAVI MUTE 26P11/ANI1SRM_SW1ISRM position detectionOpen : Hi 27P12/ANI2NOISEIFM noise detectionAnalog input 28P13/ANI3SM

12、ETERIFM signal meter detectionAnalog input 29P14/ANI4IF_MODEIK2I IF selectorWide : Hi / Narrow : Lo 30P15/ANI5NCIGND 31P16/ANI6M_MUTE_RIMute request from meshanismMute requested : Lo 32P17/ANI7M_MUTE_LIMute request from meshanismMute requested : Lo 33AVssAVss-A/D GND 34P130/ANO0EXT_AMPOEXT_AMP contr

13、ol 35P131/ANO1M_RSTOReset output to mechanismReset : Lo 36AVref1-D/A reference voltage input 37P70/RxD2/SI2DATACIData line from changer 38P71/TxD2/SO2DATAHOData line to changer 39P72/ASCK2/SCK2CH_CLKI/OClock line from/to changer 40P20/RxD1/SI1L_DATAL/SC_DATAIData line from LCD driver 41P21/TxD1/SO1L

14、_DATAS/MC_DATAOData line to LCD driver 42P22/ASCK1/SCK1L_CLK/MC_CLKI/OClock line to LCD driver 43P23/PCLM_STOPI/OStop request to mechanismStop Requested : Lo 44P24/BUZBEEPOBeep outputActive : Hi 45P25/SI0PLL_CEOCE output to PLL 46P26/SO0PLL_DATAI/OData in/out with PLL 47P27/SCK0PLL_CLKOClock output

15、to PLL 48P80/A0CD_SW3ISwitch detectionON : Hi 49P81/A1LO/EJOLoading/Eject controlLoading : Lo / Eject : Hi RadioFans.CN 收音机爱 好者资料库 KDC-7080R/RY/RV/RYV 4 MICROCOMPUTERS DESCRIPTION No.Pin nameFunctionI/ODescriptionProcessing Operation 50P82/A2MOSWOMotor outputLoading : Hi / Eject : Lo 51P83/A3MECH_DE

16、TIMechanism detectionON : Hi / OFF : Lo 52P84/A4PAN 5VOPanel detectionOFF : Hi 53P85/A5L_CE/P_RSTOCE to LCD driver / Panel -com reset 54P86/A6L_INH/MC_REQOReset to LCD driver 55P87/A7DIM_CONODIM control 56P40/AD0QUALIRDS receiving conditionGood : Hi 57P41/AD1R_DATAIRDS data input 58P42/AD2SRM_SUBOSR

17、M sub motor output 59P43/AD3SRM_SUB+OSRM sub motor output 60P44/AD4SRM_DETISRM mechanism detectionON : Lo / OFF : Hi 61P45/AD5SRM_SW2ISRM eject detection : Eject 62P46/AD6FM_SDIFM SD input Station detected : Hi Not detected : Lo 63P47/AD7NCOOpen 64P50/A8AFCONoise detection time constant switching Du

18、ring reception : Hi During search : Lo 65P51/A9-O 66P52/A10WIDEOK2I Wide outputActive : Hi 67P53/A11NARROWI/OK2I Narrow outputActive : Hi 68P54/A12AM+BOAM power supplyActive : Hi 69P55/A13FM+BOFM power supplyActive : Hi 70P56/A14NCOOpen 71P57A15NCOOpen 72Vss-GND 73P60/A16TYPE0IDestination type switc

19、h 74P61/A17TYPE1IDestination type switch 75P62/A18TYPE2IDestination type switch 76P63/A19ST_TYPE0IIC2 Var. 3 destination type 0Initial value : Lo 77P64/RDST_TYPE1IIC2 Var. 3 destination type 1Initial value : Lo 78P65/WRNCOOpen 79P66/WAITPRE MUTE ROAudio muteActive : Lo 80P67/ASTBPRE MUTE LOAudio mut

20、eActive : Lo 81Vdd-Positive power supply 82P100/TI5/TO5NCOOpen 83P101/TI6/TO6SVROPower IC resetPower ON : Lo 84P102/TI7/TO7NCOOpen 85P103/TI8/TO8P_MUTEOPower IC mutingActive : Lo 86P30/TO0ANT_CONOAntenna controlActive : Hi 87P31/TO1IC2_SCKOIC2, IC5, EEPROM clock line 88P32/TO2DIMMERIDimmer detection

21、Active : Lo 89P33/TI1P_CONOPower controlActive : Hi 90P34/TI2ACC_DETIACC detectionACC OFF : Hi 91P35/TI00REMOIRemote control input 92P36/TI01P_ONO-com peripheral power supplyActive : Hi 93P37BU_DETIMomentary power down detectionMomentary power down : Hi 94TEST-TestGND 95P90IC2_SDAI/OIC2, IC5, EEPROM

22、 data line 96P91MUTEOMuting outputActive : Hi 97P92SW5O5V power supplyActive : Lo 98P93MS_CLOCD mechanism clock line 99P94MS_DAI/OCD mechanism data line 100P95O KDC-7080R/RY/RV/RYV 5 TEST MODE 1. Entering the test mode Reset the unit by pressing the FM key and the Preset 6 key at the same time. When

23、 the test mode is entered, all indicators light up. 2. Releasing the test mode Reset the unit by pressing the preset 6 key. Note: The unit cannot be reset by simply turning ACC off, turning power off, or turning power off for a brief moment. 3. Voltage adjustment on the FM S-meter (1) Enter the test

24、 mode. (2) While pressing the Preset 1 key, keep on pressing the Preset 6 key. (3) When the adjustment is made, ADJ OK is dis- played. When adjustment cannot be made, ADJ NG is displayed. 4. Writing SD voltage for the AM (1) Enter the test mode. (2) While pressing the Preset 1 key, keep on pressing

25、the Preset 6 key, which results in writing SD. 5. Forced switching of K2I Auto/Manual In tuner-mode, keeping on pressing TI key, and the Auto and Manual modes can be switched. The initial condi- tion is in manual modes, which is indicated by flashing DUAL dots. 6. Forced narrow/wide switching of K2I

26、 In turner-mode, when Preset 6 is pressed, forced nar- row/wide mode switching is made. The initial condi- tion is in wide mode and the NEWS dot flashes. 7. CD receiver test mode specification By pressing the track-up key, the unit jumps to the fol- lowing tracks: No. 9No. 15No. 10No. 11No. 12No 13N

27、o. 14No. 9 (Goes back to the first position.) When the track-down key is pressed, the unit jumps to the previous track. 8. MD test mode specification After loading MD, the unit plays No. 7. Then, the unit jumps as follows each time it trackups. No. 2No. 13No.23No.30 NO.34No. 7 (Goes back to the firs

28、t position.) When the track-down key is pressed, the unit jumps to the previous track. 9. Tape test mode In the initial step, the blank skip is turned off. 10. Audio-related items The volume is -10dB (on display, it is 30). The loudness is off and CRSC is off regardless of func- tions. Buss/treble a

29、nd balance/fader are to be adjusted by the up/down key to full-boost/fullcut and fullfront/ fullrear respectively. The high-pass filter is adjusted by the up-key to throughput/100Hz/200Hz and, by the down-key, to 200Hz/100Hz/throughput. Other adjustments are the same as before. 11. Backup current me

30、asurement When reset in ACC-off condition (backup is on), the mute terminal goes off after 2 seconds instead of 15 seconds, when the ACC is turned off in the test mode. (In this case, the panel/CD/C/MD mechanisms are not activated.) 12. Registering security code after changing E2PROM at the services

31、 (Only for type M. However, RDS models are excluded) (1) Put the unit into the test mode (Refer to 1. Above for how to enter the test mode.) (2) Press SRC key to put the unit into the tuner mode. (3) Press Audio key for one second and put the unit into the menu mode. (4) Press FM/AM key and then sel

32、ect SECURITY. (5) Press track up/down key for full 2 seconds. (6) Press Preset 1, Preset 2, Preset 3, and Preset 4 and then input codes. Example: Inputting 3510. Press 1 key 4 times. Press 2 key 6 times. Press 3 key 2 times. Press 4 key once. (7) Press DISP key for 3 seconds and confirm that APPRODV

33、ED is displayed. (8) Release the test mode. (Refer to 2. Releasing the test mode above.) KDC-7080R/RY/RV/RYV 6 TEST MODE 13. Simplified method for clearing the security code (Only for type K) (1) When code is requested, continue pressing VOL UP key for three seconds while pressing the DISP key. (- d

34、isappear.) (2) Input KCAR, using the remote controller (the same as the 98 Model) Press Tenkey 5 twice and then press track-up key. (Inputting K) Press Tenkey 2 three times and then press track- up key. (Inputting C) Press Tenkey 2 once and then press track-up key. (Inputting A) Press Tenkey 7 twice

35、 and then press track-up key. (Inputting R) (3) Then, the security is released and the unit goes into the Tuner Mode. 14. Writing MASK KEY on line (E2PROM in initial condition) (1) While pressing the FM key and Preset 6 key, press reset key to enter the test mode. (2) Press AUDIO key for full one se

36、cond to put the unit into the menu mode. (3) Select the MASK KEY, using the FM key or AM key. (4) Press on the track up/down key to display TRANS- MIT 1. (5) Point the MASK KEY to the light receptor and press it for 0.5 second or longer. (6) When TRANSMIT 2 is displayed, press MASK KEY for 0.5 secon

37、d or longer. When this is conducted, the counter codes for the first time and the second time will not be compared. (7) When APPROVED is displayed, writing is com- pleted. time the demonstration mode is set and the test mode is released. Note: After an elapse of 30-minute period, during which no cod

38、e is written, an error is effected and the device will power off. 15. Releasing MASK KEY requests (When reset or backup is off when MASK KEY is approved) (1) When power is turned on, TRANSMIT 1 is dis- played and the unit goes into MASK KEY request mode. (2) Point the MASK KEY to the light receptor

39、and press it for more than 3 seconds (until the level display indicates full) (3) When TRANSMIT 2 is displayed, press the MASK KEY again for more than three seconds. At this point, when TRANSMIT 1 is displayed, repeat the pro- cess in (2) above for the second time. (4) When APPROVED is displayed, MA

40、SK KEY is ap- proved and the unit turns power on. 16. Initializing MASK KEY (returning to the default condi- tion from MASK KEY approved state) (1) While pressing the FM key and Preset 6 key at the same time, press RESET to enter the test mode. (2) TRANSMIT 1 is displayed and the unit goes into MASK

41、 KEY request mode. The display at this point will be * instead of . (3) Use MASK KEY release remote controller for more than three seconds. (4) When TRANSMIT 2 is displayed, press the MASK KEY for more than three seconds for the second time. (5) When APPROVED is displayed, the MASK KEY is released a

42、nd the demonstration mode is set. Then, the test mode is released, returning the unit into de- fault condition. 17. Clearing from the MASK KEY (1) While pressing FM key and Preset 6 key at the same time, press RESET to enter the test mode. (2) Press the AUDIO key for full one second to put the unit

43、into the menu mode. (3) Select MASK KEY, using track up/down key. (4) Press on the FM key or AM key for full two seconds and the unit will display TRANSMIT 1. (5) Point the MASK KEY release controller to the light receptor and press it for 3 seconds or longer. (Until the level display indicates full

44、.) (6) When TRANSMIT 2 is displayed, press MASK KEY for 3 seconds or longer for the second time. If TRANSMIT 1 is displayed, start again from (5) above. (7) When APPROVED is displayed, E2PROM is cleared. The unit goes back to the condition described in Line 14: Writing MASK KEY on line (E2PROM in in

45、itial condition) 18. Other Automatic panel closing does not occur in case a TAPE, CD, or MD is inserted. Panel is opened/closed when ATT key is turned On/Off. ( A remote controller is used when turning ATT on.) The DNPP/SBF key of the remote controller (RC-510) is used for tuning the menu mode On/Of

46、f. The OPEN/CLOSE key of the remote controller (RC- 510) is used for tuning the audio mode On/Off. The feed on the menu will be feeds only for neces- sary features. CODE OFF and other displays will not be issued when the power is turned on. The dimmer of the FL model and contrast on the LCD model ca

47、n be adjusted only for 0/5/10 by the UP/ DOWN key. KDC-7080R/RY/RV/RYV 7 Set the controls and switch as follows. BALANCE : center positionBASS : center positionLOUD : OFF FADER : center positionTREBLE : center position ADJUSTMENT FM SECTION ALIGN FORNo.ITEM INPUT SETTINGS OUTPUT SETTINGS TUNER (RECE

48、IVER) SETTINGS ALIGNMENT POINTS FIG. 1 SEPARATION (NARROW) 98.1MHz 1kHz, 40kHz dev Point : 6.0kHz dev Selector : L or R 60dB (ANT input) Connect an AC voltmeter to SP OUT TEST MODE:ON (Forced Narrow) FM 98.1MHz VR1 Adjust it so that the crosstalk from L to R and R to L become minimum. VR1 SEPARATION

49、 F/E (X25-) FRONT J1 ABCDE 1 2 3 4 5 6 7 8 (FOIL SIDE VIEW) PC BOARD (COMPONENT SIDE VIEW) Refer to the schematic diagram for the values of resistors and capacitors. C15 R28 R26 C19 R9 OPEN R6 R8 R5 R2 R1 R4 R3 R10 R24R23 R29 R27 R15 R12 R11 R14R13 C11 C10 C9 C14 C13 C12 C8 C3 C2 C1 C6 C5 C4 R31 C16 R19 R20 R17 R18 R21 R25 R22 R16 C7 CP1 C17 R30 1 1 ILL+B KI5 KS3 KS2 KS1 KI4KS4 KI3 KS5 KI2 KI1 ILL G RESET LOCK SW DIMMER DGND VDD REMO L DATAL L DATAS L CLK L CE E B E B E B E B E B E B E BE B 25 5175 76 10026 50 75 76 100 25 26 50 51 1 214 15 IC1