Kenwood-KDCX-715-Service-Manual(2) 电路图 维修手册.pdf

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1、CD RECEIVER KDC-X715 2000-1 PRINTED IN JAPAN B51-7569-00 (4) 1469 SERVICE MANUAL Extension cord CD mechanism(22P) Parts No. 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

2、(B51-7099-00). KDC-X715 DISP DC cord (E30-4779-05) Torsion coil spring (G01-2924-04) Bracket (J19-4875-04) (J19-4876-04) Remote controller assy (A70-0894-05) Escutcheon (B07-2183-02) Screw set (N99-1652-05) (N99-1683-05) Lever (D10-4301-14) (D10-4302-14) Stay (J54-0606-04) Escutcheon assy (B07-2146-

3、03) Knob (VOL) (K25-1095-03) Knob (1-3) (K25-1096-03) Knob (4-6) (K25-1097-03) Knob (CLK) (K25-1099-03) Front glass (B10-3110-01) Panel assy (A64-1870-02) C RadioFans.CN 收音机爱 好者资料库 KDC-X715 BLOCK DIAGRAM COM+B FM+B AM+B E2PROM DIMMER 2WAY MUTE ACC DET. SRMPHOT BU DET. SRM DRIVER A8V SERVO DC/DC SW14

4、V 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 ANT-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-M

5、UTE 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 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

6、 +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 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 P

7、RE 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 2 RadioFans.CN 收音机爱 好者资料库 KDC-X715 MICROCOMPUTERS DESCRIPTION 3 System -com : UPD784217GC (X25-) Terminal description No.Pin nameFunctionI/ODescriptionProcessing Operation 1 2

8、 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 P120/RTP0 P121/RTP1 P122/RTP2 P123/RTP3 P124/RTP4 P125/RTP5 P126/RTP6 P127/RTP7 Vdd X2 X1 Vss XT2 XT1 RESET P00/INTP0 P01/INTP1 P02/INTP2/NMI P03/INTP3 P04/INTP4 P05

9、/INTP5 P06/INTP6 AVdd AVref0 P10/ANI0 P11/ANI1 P12/ANI2 P13/ANI3 P14/ANI4 P15/ANI5 P16/ANI6 P17/ANI7 AVss P130/ANO0 P131/ANO1 AVref1 P70/RxD2/SI2 P71/TxD2/SO2 P72/ASCK2/SCK2 P20/RxD1/SI1 P21/TxD1/SO1 P22/ASCK1/SCK1 P23/PCL P24/BUZ P25/SI0 P26/SO0 P27/SCK0 P80/A0 P81/A1 CHCON1 CH_MUTE REQH ILL_ON NC

10、CD_SW2 CD_SW1 NC Vdd X2 X1 Vss XT2 XT1 RESET CH_RST R_CLK REQC NC NC NC SC_REQ AVdd AVref PHONE SRM_SW1 NOISE SMETER IF_MODE NC M_MUTE_R M_MUTE_L AVss EXT_AMP M_RST DATAC DATAH CH_CLK L_DATAL/SC_DATA L_DATAS/MC_DATA L_CLK/MC_CLK M_STOP BEEP PLL_CE PLL_DATA PLL_CLK CD_SW3 LO/EJ O I O O O I I O - - -

11、- - - I O I I I/O I/O I/O I - - I I I I I I I I - O O - I O I/O I I/O I/O O O O I/O O I O Changer 1 control Changer muting input Handshake request to changers Illumination output Open 12cm DISC detection Loading detection Open Positive power supply Main clock connection Main clock connection GND Sub

12、 clock connection Sub clock connection Reset input Changer reset output RDS clock input Handshake request from changer - - - Handshake request from panel m-com A/D analog power supply A/D reference voltage input PHONE detection terminal SRM position detection FM noise detection FM signal meter detec

13、tion K2I IF selector GND Mute request from mechanism Mute request from mechanism A/D GND EXT_AMP control Reset output to mechanism D/A reference voltage input Data line from changer Data line to changer Clock line from/to changer Data line from LCD driver Data line to LCD driver Clock line to LCD dr

14、iver Stop request to mechanism Beep output CE output to PLL Data in/out with PLL Clock output to PLL Switch detection DOWN Loading/Eject control Active : Hi MUTE Requested : Hi Active : Lo Active : Hi ON : Lo ON : Lo Active : Lo Active : Lo Active : Lo 1V or less : PHONE 2.5V or more : NAVI MUTE Ope

15、n : Hi Analog input Analog input Wide : Hi/Narrow : Lo Mute requested : Lo Mute requested : Lo Reset : Lo Stop Requested : Lo Active : Hi ON : Hi Loading : Lo/Eject : Hi RadioFans.CN 收音机爱 好者资料库 KDC-X715 MICROCOMPUTERS DESCRIPTION No.Pin nameFunctionI/ODescriptionProcessing Operation 50 51 52 53 54 5

16、5 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 P82/A2 P83/A3 P84/A4 P85/A5 P86/A6 P87/A7 P40/AD0 P41/AD1 P42/AD2 P43/AD3 P44/AD4 P45/AD5 P46/AD6 P47/AD7 P50/A8 P51/A9 P52/A10 P53/A11 P54/A12 P55/A13 P56/A14 P5

17、7/A15 Vss P60/A16 P61/A17 P62/A18 P63/A19 P64/RD P65/WR P66/WAIT P67/ASTB Vdd P100/TI5/TO5 P101/TI6/TO6 P102/TI7/TO7 P103/TI8/TO8 P30/TO0 P31/TO1 P32/TO2 P33/TI1 P34/TI2 P35/TI00 P36/TI01 P37 TEST P90 P91 P92 P93 P94 P95 MOSW MECH_DET PAN 5V L_CE/P_RST L_INH/MC_REQ DIM_CON QUAL R_DATA SRM_SUB- SRM_S

18、UB+ SRM_DET SRM_SW2 FM_SD NC AFC - WIDE NARROW AM+B FM+B NC NC TYPE0 TYPE1 TYPE2 ST_TYPE0 ST_TYPE1 NC PRE MUTE R PRE MUTE L NC SVR NC P_MUTE ANT_CON IC2_SCK DIMMER P_CON ACC_DET REMO P_ON BU_DET IC2_SDA MUTE SW5 MS_CL MS_DA - O I O O O O I I O O I I I O O O O I/O O O O O - I I I I I O O O - O O O O

19、O O I O I I O I - I/O O O O I/O O Motor output Mechanism detection Panel detection CE to LCD driver / Panel m-com reset Reset to LCD driver DIM control RDS receiving condition RDS data input SRM sub motor output SRM sub motor output SRM mechanism detection SRM eject detection FM SD input Open Noise

20、detection time constant switching K2I Wide output K2I Narrow output AM power supply FM power supply Open Open GND IC2 Var.3 destination type 0 IC2 Var.3 destination type 1 Open Audio mute R Audio mute L Positive power supply Open Power IC reset Open Power IC muting Antenna control IC2,IC5,E2PROM clo

21、ck line Dimmer detection Power control ACC detection Remote control input -com peripheral power supply Momentary power down detection Test IC2,IC5,E2PROM data line Muting output 5V power supply CD mechanism clock line CD mechanism data line NC Loading Hi/Eject : Lo ON : Hi/OFF : Lo OFF : Hi Good : H

22、i ON : Lo/OFF : Hi : Eject Station detected : Hi Not detected : Lo During reception : Hi During search : Lo Active : Hi Active : Hi Active : Hi Active : Hi Destination type switch Destination type switch Destination type switch Initial value : Lo Initial value : Lo Active : Lo Active : Lo Power ON :

23、 Lo Active : Lo Active : Hi Active : Lo Active : Hi ACC OFF : Hi Active : Hi Momentary power down : Hi GND Active : Hi Active : Lo 4 KDC-X715 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 the test mode is entered, all indicators

24、 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 mode. (2) While pressing the Preset 1 ke

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

26、g 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 condition is in manual modes, which is indicated by flashing DUAL dots. 6. Forced narrow/wide switching of K2I In tuner-mode,when Preset 6 is pressed, fo

27、rced narrow/ wide mode switching is made. The initial condition 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 follow- ing tracks: No.9 No.15 No.10 No.11 No.12 No.13 No.14 No.9 (Goes back to the first position.) Wh

28、en 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.2 No.13 No.23 No.30 No.34 No.7 (Goes back to the first position.) When the track-down key is pressed,

29、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 regardlles of func- tions. Buss/treble and balance/fader are to be adjusted by the up/down

30、 key to full-boost/fullcut and fullfront/fullrear respectively. The high-pass filter is adjusted by the up-key to through- put/100Hz/200Hz and, by the down-key,to 200Hz/ 100Hz/ throughput. Other adjustments are the same sa before. 11. Backup current measurement When reset in ACC-off condition (backu

31、p 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 (Only for type M. However, RDS models are exclu

32、ded.) (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 select SECURITY. (5) Press track up/down key for f

33、ull 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 APPRODVED is displayed. (8) Release the test mode. (Re

34、fer to 2. Releasing the test mode above.) 5 KDC-X715 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. ( disappear.) (2) Input KCAR, using the remote controller (the

35、 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 and then press track-up key. (Inputting R) (3) Then, the se

36、curity is released and the unit goes into the Tuner Mode. 14. Writing MASK KEY on line (E2PROM in initial condi- tion) (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 second to put the unit into the menu mode. (3) Select the MA

37、SK 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 second or longer. When this is conducted, the counter codes for

38、 the first time and the second time will not be compared. (7) When APPROVED is displayed, writing is complated. time the demonstration mode is set and the test mode is released. Note: After an elapse of 30-minute period, during which no code is written, an error is effected and the device will power

39、 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 displayed and the unit goes into MASK KEY request mode. (2) Point the MASK KEY to the light receptor and press it for more than 3 seconds (until the level display

40、indi- cates 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 process in (2) above for the second time. (4) When APPROVED is displayed, MASK KEY is approved and the unit turns power on. 16. Initializi

41、ng MASK KEY (returning to the default con- dition 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 KEY request mode. The display at this point will be * instead o

42、f . (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 and the demonstration mode is set. Then, the test mode is released

43、, 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 into the menu mode. (3) Select MASK KEY, using track up/down key.

44、(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 re- ceptor and press it for 3 seconds or longer. (Until the level display indicates full.) (6) When TRANSMIT 2 is displayed, press MASK KEY for 3 second

45、s 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 initial condition) 18. Other Automatic panel closing does not occu

46、r 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 tuning ATT on.) The DNPP/SBF key of the remote controller (RC-510) is used for tuning the menu mode On/Off. The OPEN/CLOSE key of the remote controller (RC- 510) is used fo

47、r tuning the audio mode On/Off. The feed on the menu will be feeds only for necessary 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 can be adjusted only for 0/5/10 by the UP/ DOWN key. 6 BCADEFGHIJ 2 4 3

48、 5 6 7 1 S2S3 S4 S5 S6S7 S8 S9 S10S11 S12 S13 S21 S15 S16 S17 S14 S18S19 S20 RESET IC3 D6 D5 S1 D3 D2 D4 X13-9720-10 (J74-0984-12) ED1 4 3 12 189181964 65119120139 EJECT SRC FM AM CLKAUDDISCAUTO653421ATT PC BOARD (COMPONENT SIDE VIEW) 7Refer to the schematic diagram for the values of resistors and c

49、apacitors.8 ELECTRIC UNIT (X25-8470-13)SWITCH UNIT (X13-9720-10) IC6 Q16 Q15 Q17 IC1 IC2 IC3 Q35 Q34 Q36 Q37 Q31 Q11 IC8 D51 IC16 D23 D24 IC7 IC12 IC11 D31 IC5 Q29 D22 Q50 Q48 IC14 Q28 D6 Q9 Q8 D27 D48 Q39Q40 IC9 Q53 Q54D18 D50 X25-8470-13 (J74-1000-12) D8 D20 CN8 D12 Q23 Q1Q4 A1 D2 CN4 CN3 CN6 J1 D19 D1 IC4 WH1 CN7 D5 D3 Q56 Q7 D4 CN5 Q13 D7 CN1 CN2 Q21 D11 CP7 R76 R115 C20 C22 R28 R29 R27 R242 X2 W28/C12 R179 R137 C58 C67 L7 CP2 L6 C164 L4 L9 W10 R124 W11 W9W8 R26 R220 R218 C139 R226 R217 R219 R90 C132 R231 R58 R113 R199 R116 R6 R192 C17