Britania-BS333-cs-sch维修电路原理图.pdf

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3、DCDRADIOTAPE765432CN81TO?TAPESW2-CR20?470TAPERADIOCD1C70?47uFSW4-1BASSM4231SW-A?TAPE423C88?470u/16V1CN80?TO?MOTORR79?2K2TO?MAIN?BOARDZD80?5V6120V?TO?12VTRANFORM-C30?2200uC26-C29?0.04u*4D3-D6?IN4004*4AC?120VMOTORD82?IN4148ONOFFACDC+R82?10KC83?0.0015uC82?1uR85?10KC87?0.0015uR80?1KR81?100KC81?0.02uR84?

4、100KC85?0.02uC111?47uC86?1u12V115V*8PCSLED80?POWERSW5-8R118?1K8R121?1K1432C114?470uR120?330657R124?33KSW5-9R126?33KR123?10KC105M0.022uR116?4K7C113?10uR110?33KC104?4u7R103?33C116?22uZD3?6V8131412R117?4K7C106?M0.022u11109456C110?4u712IC?DBL1027/KA2224/LA32203R112?56KC102?20pC101?20pC117?22uR119?1K8R12

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11、CY1?16.9344C1C0SEG09SEG08SEG06SEG03SEG04SEG05SEG01SEG02SEG00PORT13PORT14PORT11PORT12PORT10PORT14PORT13PORT12PORT11PORT10111098765432154321+5VR29?470R28?1MC35?10PR27?4K7C38?0.1U+3VR26?47012DGNDR51?2V3B+8VC3?0.1UC1?0.1U+5VC6?0.1U+5V151615432109876PDEPDC131214PDDPDAPDBPDF11R16?3KR18?5K6+5VR2?82K+5VDGND

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13、VG1426OUT4+VIN1327OUT4-OUT1+228GNDOUT1-1SLDACSPWMTRDACC11?0.1UL1?3.3uHC5?47UC12?0.01U0.01U0.0039UR8?2KTZER9?2KRFRPR11?2KFETEC22?0.0056UR20?2K+2.5VFSQ38550NC33?10UD1?IN4148DGNDC36?10PDGNDFODACR7?NOPC9?0.1UR10?2KC27?150KC13?0.1URFR15?15C18?100UV3B3VR23?100C24?0.1UC30?0.1UR21?100C23?0.1UR13?10KC20?0.00

14、1UR12?6K2R4?1KVC1R14?6K2C8?100UR5?180C19?47U/16VC10?0.1UC15?0.0068URD7RD6RD5RD4RD3RD2RD1RD0RA13RA12LCHRCH8550NQ4SEG04SEG05SEG06SEG02SEG03SEG00SEG01R41?1KA2282FIC1RA11RA07RA08RA09RA02RA03RA04RA05RA06RA10RA00RA01C37?0.1UC32?0.1UC29?680P123DGNDD2?IN4148C52?1UR48?1KV3BQ59014C34?0.1U+2.5vDGNDC43?47UC49?N

15、OP(0.001U)C48?NOP(0.001U)C46?0.1UR33?6K8R36?6K8Q69014R34?10KV3BC44?4U7C45?4U7C39?0.1UC40?0.1UC41?0.1UDGNDR35?10K+2.5vC0C1C2C3SEG14SEG13SEG12SEG11SEG10SEG09SEG08SEG0765DGND238DGND466XWE37SEG667XCASL36SEG568XRAS35SEG469XCASH/DOMH34SEG370RAMCK33SEG271RD732SEG172RD631SEG073RD530BIAS74DVDD229VLC375RD428V

16、LC276RD327VLC177RD226MCDE478RD125XTAL179RD024XTAL080RA1323DVDD381RA1222RESET82RA1121RM183RA1020PORT1584DGND119PO485RA918PORT1486RA817PORT1387RA716PORT1288RA615PORT1189RA514PORT1090RA413PORT3191RA312PORT3092RA211PO193RA110POO94RA09PORT1795DVDD18SPRT1696AVCC17SPPWM97RFVB6SLDAC98RFVT5TRDAC99RF4FOOAC100

17、RFGO3ADCAUX1101PFIN2ADCAUXO39SEG7TE12840SEG8FS12741SEG9FE12642SEG10RFRP12543SEG11TZE12444SEG12TZEO12345SEG13RFRPO12246SEG14FEO12147COM0FSCAP12048COM1FSO11949COM2TEO11850COM3AGND211751DVDD4VC2C11652AVCC3VC211553AVRC1VC1C11454LOUTVC111355COUTAVCC11256ROUTPDF11157AVRC2PDE11058AGND3PDD10959MODE3PDB10860

18、MODE2PDC10761MODE1PDA10662MODEOLDO10563XROMOEMD11041DGND3102AGND1103XOE/DQMLRFO64DECK?KSM213KEY1?FFKEY3?PROGKEY5?STOPKEY2?FRKEY4?PLAYKEY6?RANDOMJ1PORT101PORT13PORT12PORT11432PORT145CON615141312111098765432LED1CON1211C110C09SEG98SEG87SEG66SEG55SEG44SEG33SEG22SEG1SEG01Dez?/?2002MICRO?SYSTEM?BS?3334312R*?1K5PLAYR-SKIPF-SKIPSTOP22212324INFRARED-DIODED1+IC?AS2222-0011098765Q1?9014C3?200pC2?0.1uC1?47u1112C4?100pZTB455E151817161920DC?3VBATTER-+1314