Technics-SLCT480-dm-sch 维修电路原理图.pdf

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1、FOCUSCOILTRACKINGCOILGNDFVCCBLDGNDEVREFALPD123456789102KPDFPDBPDELD GNDGNDGNDFO-TR-FO+TR+LDDRVNCLPDPDAVREFVCC0.220.0470.22R20222K1621345678910111213141516213456789101112131415CN101OPTICAL PICKUP12345678910111213141516171819202122232524262728PDEFBALPDFVDDPDAPDBLPDLDRFRF INCSBRTCEABDOLDONGNDTBALVREFFE

2、 INFE OUTTE OUTTE INEQSWGCLTENVDEFLVLOFTRPDOWN/RFDETIC101AN8885SBE1VSERVO AMPC1010.1C112220PC121120PR122120KR12010KR121120KC1201500PC1110.022C1130.1C1170.022R12810KC1160.022RFC1150.022C1030.022C1140.1R125120KR101100S201(LASER ON/OFF)(SHORT LAND)JLA BCDEFGR126100KKVREFR2031C2016.3V22R2012.2Q2012SB709

3、ATXLASER POWERDRIVEA B C D E FAFBCDEABCDMRX1410RJ1010BAIHG HGH:POSITIVE VOLTAGE LINE:PLAYBACK SIGNAL LINE2.6V1.3V1.3V2.6V1.3V1.3V0.6V(1.2V)0.7V1.2V1.2V0V0V(2.6V)1.3V1.3V1.3V1.3V1.3V1.3V1.3V2.6V0V1.3V0V0V0V2.5V(0V)PLAY2ms.20mV/DIV.70mVP-PPLAY0.3VP-P2ms. 0.1V/DIV.PLAY0.8VP-P0.5s. 0.2V/DIV.2.6V0V(0.2V)

4、2.1V(1.8V)2.6V0.8V(1.8V)2.1V(1.8V)RadioFans.CN 收音机爱 好者资料库LCD301(L5AAACB00015)1256789 10 11 12 13 14 15 16 17 18 19LCD DISPLAY34132456789 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24A B C D E FG HIJK LM N O P Q R S TU VCN301OPERATION LCD UNIT30S812(/)S811(OPR OFF)R81112KS832(MODE)R81010KR83227KS833(/

5、)R83112KS831(VOLUME+)R83010KAC D FG HIJK LM N O P Q R SBAC D E F G HIJKL M N O P Q R SB25 26 27 28 29132456789 10 11 12 13 14 15 16 17 18 19 20 21 22 23 243025 26 27 28 29R82010KR82227KS823(MEMORY/RECALL)S822(VOLUME-)R82112KS821(EQ)S801()AOFFONR3031KS310(HOLD)BR3600R313100KR32533KR30647KB C D ER3241

6、MC3011E HR301100KR361100KR302100KC3021R3041MR308100KC39922PR3053.3MX301(32kHz)C39822PR3511KR3571KR3561KEA B C DGVTAUR Q P O N M LK JIH G FS6061626364656667686970717273747576777879805958575655545352515049484746454443424140393837363534333231302928272625242322212019181716151413121110987654321SEG10SEG11

7、SEG12SEG13SEG14SEG15LDSEL2LDSEL3PMSELSOUNDRAMSEL2RAMSELREMSELLDOFFX3XBSMUTEGUPTX POWERMUTE LPDOWNRWPOWERJACKM1JACKM2RESUMEHOLDA.SHOCKRESTVssX OSC OUTX OSC INEXT-OUTEXT-IN/RESETTYPESELRIOWLSRCNBLKCKSTATMDATAMCLKMLDPLAYAC DETPMSEL2MUTE LDMUTE HCHARGE2BUZCHARGE1OPENKEY1KEY2KEY3VMON2VMONDOCTOR6KEYVL2VL3

8、COM0COM1COM2COM3AVssVREFVccSEG1SEG2SEG3SEG4SEG5SEG6SEG7SEG8SEG9SEG0VL1LDSEL1EFGHIJKLM N O P QFfR30710KC3040.1VccGNDR3101KIC301C2BBFD000293SYSTEM CONTROL/ LCD DRIVE:POSITIVE VOLTAGE LINE2.6V2.8V1.4V1.4V1.4V1.4V1.4V1.4V1.4V1.4V1.4V1.4V2.8V2.6V1.4V1.4V1.4V1.4V2.8V1.9V0.9V1.4V1.4V1.4V1.4V2.8V2.8V2.8V2.8

9、V0V0V0V2.8V2.8V1.3V1.2V0.4V0.4V2.7V0.5V0V0V0V2.8V2.8V(1.2V)2.7V0V0V0V0V2.5V0V2.6V2.6V2.6V2.6V2.5V1.9V2.6VPLAY0V2.6VF=150HzPLAY0V2.8VT13.3ms.F=4.2336MHz2.2VP-PF=4.2336MHz1.9VP-P2.8V0.8V0V1.8VT15.4ms.2.8V0.8V0V1.8VT15.4ms.PLAY0V2.8VT13.3ms.2.8V2.8V2.6VRadioFans.CN 收音机爱 好者资料库GDSIC501MN662786SBSERVO PRO

10、CESSOR /DIGITAL SIGNAL PROCESSOR /DIGITAL FILTER & D/A CONVERTERIC502M51V7400D1FS16M DRAMX501(16.9MHz)VDD123458910111213141516172021222324A3A2A1A0NRASNWEDQ0VDDA4A5A6A7NOENCASDQ2DQ3VSS761819A10A8NCA9DQ1VSSRJ5040R5112.2KR603560C5040.1R50256KC5074V100C6104V47R5081R5122.2KR514680C5141000PC5100.1C5050.02

11、2C5110.1R513100KC5060.47R505150C5090.01R5062.2KC5080.47RSTUVWXBMR7505.6KC6032700PC6042700PbR51515aC5171Q5022SK1958T1SWITCHING123456789101112131415161718192041 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 6061716272637364746575667667776878697970802122232524262728293031323334363738394035EXT2D

12、VDD1DVss1X1X2NTESTSBCKSUBCNCLDCKPMCKSPPOLNRSTSTATDMUTESMCKPWMSELBLKCKMLDMDATAMCLKTXAVDD2AVSS2EXT1EXT0FCLKFLAGAD PVCCDSLFDRFPLLFVCOFOUTLAVSS1OUTRAVDD1FSELTMOD1TMOD2IOVDD2TRV+TRV-TR+TR-FO+FO-FBALTBALDVDD2LDONIREFARFBDOSPOUTFETERFENVOFTNRFDETIOVDD1VSS2DVDD3VD0D1NWENRASD3D2NCAS0NCAS1A8A7A6A5A4A9A0A1A2A3

13、C7501C7511ACDFGIKJLR516100ACFGHIJKLMNOPEDBAFCIPEDBNMLKJHGABCDABCDR517100KZEGFBDCYdeARJ5510C5250.1RJ5020O312R50168KC503560PC5150.1C6110.1RJ5050R100012K:POSITIVE VOLTAGE LINE:PLAYBACK SIGNAL LINE2.6V2.6V0.3V0.3V2.5V2.6V0V0V0V0V0V2.6V(1.3V)(1.3V)(2.3V)(0.4V)(0.4V)(0.4V)(0.4V)(0.4V)0V0V2.5V0V0V0V0V0V0V0

14、V(1.3V)(1.3V)(0.4V)(0.4V)(0.4V)(0.4V)(0.4V)(0.4V)2.1V1.2V1.2V2.6V2.6V1.3V2.6V2.5V0V1.2V0V2.8V0V2.8V2.6V3V1.5V1.5V2.6V0.7V0.6V1.3V1.3V1.4V(0.9V)(0.9V)2.1V0V0V0V0V0V0V0V2.6V1.3V1.3V1.3V1.3V1.3V0V2.5V0V0V1.3V1.1V(0.5V)(0.2V)(0V)(2.6V)2.6V0.3V0.3V2.5V2.6V0V0V2.5V0V0V0V0V0V0V0V0V0V0V0V(0V)(1.2V)(1.3V)(1.

15、3V)(2.3V)(1.3V)(1.3V)(0.4V)(0.4V)(0.4V)(0.4V)(0.4V)(0.4V)(0.4V)(0.4V)(0.4V)(0.4V)(0.4V)PLAY0V2.6VF=150HzPLAY1kHz, 0dB0.5VP-PPLAY0.8VP-P0.5s. 0.2V/DIV.0.6VP-PF=16.9MHz1.2VP-PF=16.9MHz0V2.6VF=88.2kHzPLAY0V2.8VT13.3ms.PLAY0V2.8VT13.3ms.2.6V2.1V3V(0.3V)2.5V0V0VPLAY2.8V0VT13.3ms.MCN401M83245671CBATRAVERS

16、EMOTORS202(REST DET.SWITCH)SPINDLEMOTORIC11AN4831FHQEBVPOWER CONTROL &POWER DRIVEC196.3V22L13330HR1218KR273.9KR2222KC210.01C10120PR1110KC144V220C1316V47D22MA111TXR3147KC220.1C201C24390PC386.3V22D21MA111TXC171C1210V4.7C111R281.5KR208.2KR3033K123VDDOUTVss4NCSGDR291KQ17UN511NTXSWITCHINGR90122KQ903DTA14

17、4EUA106SWITCHING(BEEP)Q902B1CDGD000001SWITCHING(REMOTE)MQJbDABCDOEIXWVUTSRZYABCDaNC276.3V330C286.3V330C296.3V330IC12C0EBB0000031RESETABfL14330HL11330HL12100H123456789101112131415161718192040393837363534333231302928272625242322214847464544434241SOFTSTARTH BRIDGE4H BRIDGE3H BRIDGE2H BRIDGE1PVcc2MONITO

18、RSHORT PROTECTTRIANGLEW.F.GEN.(60kHz)REGLOGIC1LOGIC2LOGIC3LOGIC4RIPPLEFILTERPVcc1 DET2(TUNER)CD/ TUNER(MODE SELECT)SUBCONVERTERDRIVEUPCONVERTERDRIVEDOWNCONVERTERDRIVEPVcc1 DET1(CD/ TUNER)OUT DRIVEPOWER GEN.VMICCONVERTERCONT.REGB/SVcc/VOLTAGESELECTPVcc2TRIANGLEW.F.GEN.(100kHz):POSITIVE VOLTAGE LINE2.

19、8V2.6V0V0V0V0V0V0V0V2.6V1.3V5.5V (5.1V)(0V)(0.5V)(0.3V)(0.2V)1.4V0V0V(0.2V)0V0V2.8V0V0V0V0V (0.6V)5V(4.4V)2.8V2.6V2.6V2.6V2.6V3.2V2.8V6.2V3V3V0V0.9V0.6V2.8V2.8V2.8V0V0V0.5V2.3V0V2.8V2.7V0V2.6V2.6V2.7V2.7V2.5V0V2.6VIC701TA2131FNELHEADPHONES AMP123456789101112242322212019181716151413BST NF1LPF1VREF IN

20、VREFGNDBEEP INBST SWMT SWPW SWMT TCVcc1NBLPF2BST NF2BST OUTAGC INDETOUT BPWR GNDOUT AVcc2BEEP OUT ABEEP OUT BNAC7171C7154V4.7C7180.22C7144V4.7R7111KC7020.22C7080.1R72022KC7040.1C7110.22R70110C7120.22R70210C7054V220C7064V220R710100KC7164V10R70318R7213.9KC7190.1R709100KQ13DTC143EUA106SWITCHING(CHARGE)

21、Q14UN5214TXSWITCHING(CHARGE)Q12B1ABMD000004SWITCHING(CHARGE)C7201ICP11RSFPB20ET-LCN11SJK11DC IN4.5VJK701HEADPHONE163.5mm STEREOC150.1RJ100R101KC2 R03/ LR03(UM-4)BATTERIES3V2 RECHARGEABLEBATTERIES2.4VR172.2R16100KR131KQ15DTC143ZUA106DC IN DET.(AC ADAPTOR)R7051KR7061KR70418LRSGPKedLGHQ112SB1132T100REG

22、ULATORR1447KR15100KFR723100KBAR90547C9020.1C9060.12 R6/ LR6(UM-3)BATTERIES3V:POSITIVE VOLTAGE LINE:PLAYBACK SIGNAL LINE2.8V5.7V0.6V2.6V1.2V2.6V0V1.5V0V0.6V0.6V0.6V0.6V0.6V0.6V0.6V0.6V0.8V0.6V0.6V2.6V0V0V0.6V2.6V2.5V0V0V0V0V0V5.5V0V5.7V (5.1V)0V2.8V5.7V(5.1V)5V(4.4V)1kHz,0dB(VOLUME:25dB)1VP-PPLAY1kHz,0dB(VOLUME:25dB)1VP-PPLAY