Kenwood-DPXMP-7050-Service-Manual(1) 电路图 维修手册.pdf

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1、 2003-10 PRINTED IN JAPAN B53-0095-00 (N) 449 CD CASSETTE DSP RECEIVER DPX-MP7050 SERVICE MANUAL Size AA battery DOLBY B NR Panel (FRONT) (A64-3340-08) DC cord assy (E30-6332-08) Escutcheon assy (B07-3046-04) Remote controller assy(RC-515) (A70-2042-05) Screw set (N99-1724-05) ? ? ? ? ? ? ? ? ? ? ?

2、RadioFans.CN 收音机爱 好者资料库 DPX-MP7050 2 BLOCK DIAGRAM TAPE AM CD MUXCD FRONT REAR FRONT REAR 5L-BUS 12C-BUS I2C-BUS TUNER SW IC IC271 IC4 SW IC TAPE (TN70B) CD CD-CH AUX IN MPX/NC FADER SW (VOL)/ TONE FADER E VOL/MPX IC2 SEL/VOL/LPF IC5 SYSTEM ES HPF MUTE IC12 POWER IC FRONT REAR/ DSP IC8 BUFF IC9-11 E

3、2P-ROM IC901 PANEL u-COM IC1 MAIN u-COM LEVEL IC903 REMOTE SENSORMATRIX KEY VFD DRIVER MOTOR IC270 DRIVER MOTOR IC14 PANEL MECHA (DD-CONV) SI-B033JD DSP 3.3V CD MECHA DC/DC 11V ILL 11V TAPE 16V CD SERVO 7.5V SW 16V DSP 3.3V BU 5V A 8V REG IC IC105 (MP3,WMA) E2P-ROM (EQ/DB) TU1 EQ IC IC250 (L/R/GND)

4、N-F DRV MUTE DRV SHIFT Q201,301 Q202,302 IC904 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? RadioFans.CN 收音机爱 好者资料库 DPX-MP7050 3 MAIN UNIT Ref. No.Application/FunctionOperation/Condition IC1MAIN -COM IC2Electronic Vol/MPXElectronic Vol/MPX IC4SW ICCD/TAPE IC5SYSTEM ESSYSTEM

5、ES IC7Buff IC8DSPDSP IC911Buff IC12POWER IC IC14MOTOR DRIVER IC15RST IC16MUTE IC17REG IC IC105REG IC IC150REG ICMP3/WMA IC250EQ ICEQ/B NR IC270MOTOR DRIVER IC271SW ICAUX/CD-CH Q1BU_DET SW Q2ACC, BU_DET SW Q3ILL SW Q5ANP_CONT SW Q6,7P-ANT SW Q8P-CON SW Q9P-ON SW Q10SURVO7.5V SW Q1113SURVO7.5V AVR7.5V

6、 power supply for CD mechanism Q16MOTOR DRIVER SW Q17,18MOTOR DRIVER AVRPower supply for motor driver Q19ILL 11V SW Q20,21ILL 11V AVRPower supply for ILL Q22DD-CONV SW Q23,24DD-CONV AVRPower supply for DC/DC converter Q26LED OPEN SW Q30BU_DET SW Q52AM+B SW Q53FM+B SW Q54TUNER_CONT SW Q101,102RST SW

7、Q150,151MAIN MOTOR AVRPower supply for the main motor driver of cassette mechanism COMPONENTS DESCRIPTION ? ? ? ? ? ? ? ? ? ? ? RadioFans.CN 收音机爱 好者资料库 DPX-MP7050 4 CONTROL UNIT Ref. No.Application/FunctionOperation/Condition IC901PANEL -COM IC902REG IC IC903LEVEL SIFT IC904REMORemote controller lig

8、ht reception Q901DISPLAY_BLANKING SW Q902VFD AVR Q903DD-CONV SW Q904LED SWLED SW for DSI Q905RST SW Q906,907REMO SW COMPONENTS DESCRIPTION Ref. No.Application/FunctionOperation/Condition Q152MP3/WMA SW Q153,154MOTOR DRIVER AVRPower supply for the sub motor driver of cassette mechanism Q201,202MUTE D

9、RVMute SW for PRE-OUT Q301,302MUTE DRVMute SW for PRE-OUT Q401INPUT_SEL SW Q403,404MUTE SW Q406,407MUTE SW Q801MOTOR DRIVER SW Q805INPUT_SEL SW ? ? ? ? ? ? ? ? ? ? ? DPX-MP7050 5 MICROCOMPUTERS TERMINAL DESCRIPTION Pin No.Pin NameI/OApplication Truth Value Processing Operation Description Table 1DSP

10、_RVDTODSP data output 2DSP_CLKODSP clock output 3DSP_RSTODSP ResetL : Reset 4DSP_XLATODSP address/data switching 5LX_DATA_MOData to Slave unit 6LX_DATA_SIData from Slave unit 7LX_CLKI/OLX BUS clock 8BYTE- 9CNVSS- 10LX_CONOStart request for Slave unitH : Slave unit ON, L : Slave unit OFF 11LX_REQ_MOC

11、ommunication request for Slave unit 12RESET- 13XOUT- 14VSS- 15XIN- 16VCC- 17NMII 18PN_REQIControl on between-panel communication 19SP_INTISpectrum analyzer request 20LX_REQ_SICommunication request from Slave unit 21BUDETIMomentary power dropped detectionH : Normal, L : Momentary power dropped 22ACCD

12、ETIACC power supply detectionH : ACC OFF 23ILLUMIIDimmer ILL detection 24AMP_CTRLOExternal amp detection 25PWIC_TESTOPower IC test mode controlHigh during momentary power dropped 26BUZZOBeep output 27PWIC_SVRO 28PWIC_STBYOPower IC standby control 29SCLI/OI2C Bus 30SDAI/OI2C Bus 31SYS_DATAOBetween-pa

13、nel communication output 32PN_DATAIBetween-panel communication input 33PN_CLKOBetween-panel communication clock 34SYS_REQOBetween-panel communication control (FLASH BUSY) 35TUN_TYPE0IDestination setting 1t 36TUN_TYPE1IDestination setting 2t 37P_ANTO Power ANT Control terminalH : ANT ON (note) P_CON

14、must be hi.L : ANT OFF 38P_CON_INIExternal amp excess current control 39P_CONOExternal amp current controlH : ON 40PONOPower supply controlH : ON 41LAMPOKey ILL control (FLASH EPM) 42DISC_LEDODisc insert gate ILL 43SIOLED control for SI 44NCO 45SP_REQOSpectrum analyzer enable output 46PN_SCCONOBetwe

15、en-panel communication control (FLASH CE) 47ROMCOL_WRISetting for ROMCOL E2P exist or notH : Write to E2P SYSTEM MICROCOMPUTER : M30624MGAB15FP (MAIN UNIT : IC1) ? ? ? ? ? ? ? ? ? ? ? DPX-MP7050 6 Pin No.Pin NameI/OApplication Truth Value Processing Operation Description Table 48CD_PONOPower SW for

16、CD_DSPL : ON (While CD sourcing) 49PM_MOT1OPanel motor control 1r 50PM_MOT2OPanel motor control 2r 51PM_VROPanel mechanism voltage control 52PM_DETIPanel mechanism detection 53PM_OPENIPanel full-open detection 54CD_MOTOROCD motor control terminalwRefer to the truth value table. 55CD_LOEJI/OCD motor

17、control terminalwRefer to the truth value table. 56CD_LOE_LIM_SWICD detection terminal (Chucking SW)H : Loading complete, L : No disc. 57CD_DISC8_SWINot used. 58CD_MSTOPOCD mechanism -com stop terminal H : Mechanism -com in operation L : Mechanism -com in stop 59CD_MUTE_LICD MUTE(Lch) request termin

18、alL : Lch mute request 60CD_LOS_SWICD loading detection terminal 61CD_DISC12_SWICD detection terminal (12cm) 62VCC- 63CD_MUTE_RICD MUTE(Rch) request terminalL : Rch mute request 64VSS- 65CD_MRSTOCD mechanism -com RST terminalH : Normal, L : Reset 66TEL_TYPEISetting for whether hand-free function exi

19、sts or notH : Exists, L : No function. 67TA_MSCOTAPE music change SWL : FF/Rewinding, H : Other 68TA_MUSICITAPE between music detectionL : Music exists. 69TA_PACKDETITAPE PACK detectionL : PACK exists. 70TA_MODE1ITAPE mode detection 1 71TA_MODE2ITAPE mode detection 2 72TA_MODE3ITAPE mode detection 3

20、 73TA_SMOTOR1OTAPE sub motor control 1e 74TA_SMOTOR2OTAPE sub motor control 2e 75TA_MOTOROTAPE main motor controlH : ON 76TA_FROTAPE PLAY direction change SWH : REVERSE, L : FORWARD 77TA_EQ_MUTEOTAPE EQ MUTE change SWL : TAPE playing, H : Other than playing (MUTE) 78TA_DOLBYOTAPE DOLBY change SWH :

21、ON 79TA_METALOTAPE METAL change SWH : NORMAL, L : METAL 80TEL_V_DOWNOTEL DSP control terminal (Not used.)H : In operation. 81TEL_V_RSTOTEL DSP Reset terminal (Not used.)H : In operation. 82TEL_MUTEOTEL MUTE terminal (Not used.) L : TEL in use. H : Other than TEL, momentary power dropped 83MUTEOMUTEH

22、 : MUTE ON. 84MUTE_PWICOPower IC MUTE controlL : ALL OFF, momentary power dropped 85ASEL1OINPUT SEL change terminal 1q 86ASEL2OINPUT SEL change terminal 2q 87FM+BOFM power supply controlH : FM (However, AM+B is L) 88AM+BOAM power supply controlH : AM (However, FM+B is L) 89TUN_SDIStation detectionH

23、: Station exists. 90NCI 91TUN_SMETERIS-meter input 92REFCONOA/D reference voltage output 93PM_MODEIPanel mechanism position detection 94CD_DETICD detectionL : CD exits. (A/D input) Vth : 2.2V MICROCOMPUTERS TERMINAL DESCRIPTION ? ? ? ? ? ? ? ? ? ? ? DPX-MP7050 7 Pin No.Pin NameI/OApplication Truth V

24、alue Processing Operation Description Table 95TA_R_REELITAPE reel pulse (REV) 2.5V : Not in operation (L, H position detection needs to be examined.) 96AVSS- 97TA_F_REELITAPE reel pulse (FWD) 2.5V : Not in operation (L, H position detection needs to be examined.) 98VREF- 99AVCC- 100NCI q INPUT SEL S

25、witching ASEL1ASEL2 ALL OFFLL TUNERLL CDLL TAPEHL CHLL AUXLH TELLL w CD_MOTOR, CD_LO/EJ CD_MOTORCD_LO/EJ StopLHi-z LoadHL EjectHH BrakeHHi-z Use prohibited.LL e CASSETTE MOTOR TA_SMOTOR1TA_SMOTOR2 LoadHL EjectLH StopHH OFFLL r PM_MOT1, PM_MOT2 PM_MOT1PM_MOT2 StopLL FWDHL REVLH BrakeHH t CRSC_1, CRSC

26、_2 CRSC_1CRSC_2 AFTERLL OEM1LH OEM2HL OEM3HH MICROCOMPUTERS TERMINAL DESCRIPTION ? ? ? ? ? ? ? ? ? ? ? DPX-MP7050 8 MICROCOMPUTERS TERMINAL DESCRIPTION PANEL MICROCOMPUTER : M30825MH-079GP (CONTROL UNIT : IC901) Pin No.Pin NameI/OApplicationProcessing Operation Description 1GS01OFL dot section data

27、output terminal 1 2GCLKOFL dot section clock output terminal3.3MHz 3NCONot used. 4REMOIRemote control signal input 5GS02OFL dot section data output terminal 2 6NCIGND electrical potential 7GCLKIFL dot section clock input terminal 8-11NCONot used. 12GCPOFL dot section gradation occurrence 13NCONot us

28、ed. 14GBKOFL dot section data blanking output H : Light on L : Light off Delay on circuit must be 1 Sec or less 15BYTEIGND electrical potential 16CNVssIGND electrical potential 17NCI 18NCONot used. 19RESETIL : Reset 20XoutO 21VssGND electrical potential 22XinI 23Vcc5V electrical potential 24Not used

29、. (NMI)IConnected to 5V electrical potential 25SP_REQISpectrum analyzer enable input 26SYS_REQISystem -com communication request input 27PN_SC_CONISystem -com communication panel operation controlL : Operation OK 28,29NCONot used. Only operated during ROM collection reading 30SCLI/OE2PROM write cloc

30、k terminalIn normal operation : Input when SEL_E2P are H (During ROM collection write) 31SDAI/OE2PROM write terminal Operated only during ROM collection When SEL_E2P are H, input (During ROM collection write) 32GLATOFL dot section data latch output 33SP_INTOSpectrum analyzer data control requestH :

31、Request 34NCONot used. 35DSP_CLKISpectrum analyzer data input clock 36SP_DATA_INISpectrum analyzer data input 37NCONot used. 38PN_DATAOSystem -com communication data output terminal 39Vcc5V electrical potential 40SYS_DATAISystem -com communication data input terminal 41VssGND electrical potential 42

32、PN_CLKISystem -com communication clock input terminal250KHz ? ? ? ? ? ? ? ? ? ? ? DPX-MP7050 9 Pin No.Pin NameI/OApplicationProcessing Operation Description 43PN_REQOPanel communication request output 44GS03OFL dot section data output terminal 3 45NCINot used. 46FL_CLKIFL dot section clock input ter

33、minal 47NCONot used. 48SEL_E2PIE2PROM write requestH : Write 49-56NCONot used. 57VssGND electrical potential 58W5/W6_SELIDPX-MP7050/DPX-630M selectionH : DPX-630M, L : DPX-MP7050 59Vcc5V electrical potential 60-73NCONot used. 74Vcc5V electrical potential 75NCONot used. 76VssGND electrical potential

34、77-90NCONot used. 91Vcc5V electrical potential 92NCONot used. 93VssGND electrical potential 94-123NCONot used. 124RE_INIB input 125RE_BASEIA input 126KS0OKey scan output 0 127KS1OKey scan output 1 128KS2OKey scan output 2 129KS3OKey scan output 3 130VssGND electrical potential 131KS4OKey scan output

35、 4 132Vcc5V electrical potential 133NCONot used. 134DC/DC SWODC/DC FL terminal switching terminalDependent on PN PON 135PN PONOPower supply control terminal 136KR0IKey return signal input 0 137KR1IKey return signal input 1 138KR2IKey return signal input 2 139KR3IKey return signal input 3 140AvssGND

36、electrical potential 141KR4IKey return signal input 4 142VrefIConnect to GND electrical potential 143Avcc5V electrical potential 144NCIConnect to GND electrical potential MICROCOMPUTERS TERMINAL DESCRIPTION ? ? ? ? ? ? ? ? ? ? ? DPX-MP7050 10 Below is how to release registered security codes. How to

37、 release security codes In the security code input screen (CODE ), after resetting to restart, while holding down 1 key, press 6 key for 2 seconds or more. Then, the character “C” is displayed at the right end of the security code input screen. In this condition (CODE C), using q, w, e, and r keys o

38、f the remote controller, input “KCAR” in the “” section. After inputting the characters, press PLAY/PAUSE key once to confirm. Then, the registered code is released and “CODE OK!” is displayed. RELEASING SECURITY CODES ADJUSTMENT Panel Position Registration q In the test mode, the panel position reg

39、istration mode can be entered by pressing ATT key for several seconds. Display : STAND BY w Press OPEN/CLOSE () key on the remote controller once, and wait for the panel to fully open. Confirm that the panel is pushed out to designated position, and then register position. Display : OPEN CHECKSTAND

40、BYOPEN ENTRY (BEEP 3 times) e (After position registration) With the panel fully open, place the panel position registration jig on the set side. Press CLOSE () on the remote controller, and close the panel. With the jig in-between panel and sub-panel, register position. (For this, jig must be held

41、firmly with a hand.) Then, press ATT key for several seconds and move out of the registration mode. In order to remove the jig, press ANGLE key. This makes the panel to open slightly and the jig can be taken out. Then, press ANGLE key to put the panel back into original position. Display : STAND BYC

42、LOSE CHECKSTAND BYCLOSE ENTRY (BEEP 3 times) Caution : When “OPEN ENTRY/CLOSE ENTRY” is displayed, the position registration is complete. Confirm that this is displayed before moving on to the next operation. INPUTOUTPUT TUNER ALIGNMENT NoITEM SETTINGSSETTINGS (RECEIVER) POINTS ALIGN FORFIG. SETTING

43、S CASSETTE DECK SECTION TCC-153 Connect a Head Azimuth Adjust the azimuth for each 1AZIMUTH 10kHz AC voltmeterTAPE PLAY Screw Lch/Rch or FWD/RVS to SP OUTbecomes maximum PLAY BACK Connect a ACVR250A (L) 2 LEVEL TCC-130voltmeter to CN253TAPE PLAYVR250B (R)388mV(a) (EQ UNIT)(EQ UNIT) ? ? ? ? ? ? ? ? ?

44、 ? ? DPX-MP7050 11 ABCDE 1 2 3 4 5 6 7 CN252 S250 CN253 CN250 CN251 C262B C259B C268 BP C262A BP 19 82 C257 51 42 13 182 171 VR250BVR250A C259A C260 EQ UNIT C265 C256A R254A R255A C252B R275 C253B R251B R253B C254A R259 C264 C255A C258A C261A R252AR253A R254B C250A R250A R251A C252A C251AC253A C250B

45、 C251B R274 R250B R252B R273 R257 R263 C261B C254B R255B C255B R256 C256B C258B R260 C267 R261 C263 C266 R258 R262 1 1011 20 21 30 31 40 IC250 EQ UNIT PC BOARD (COMPONENT SIDE VIEW)(FOIL SIDE VIEW) Refer to the schematic diagram for the values of resistors and capacitors. EQ UNIT ICAddress 2503D ? ? ? ? ? ? ? ? ?