Panasonic DMP-BD81PU Service Manual

Panasonic DMP-BD81PU Service Manual Manual pdf 55 page image

5511.5. Digital (Front End Section) Block Diagram19RFIN18RFIP6INA5INB8INC7IND12INE11INF9ING10INHLASERDETECTORLASERDETECTORLASERDETECTORBDCDDVDFO/TRACTUATORSPINDLEMOTOROPTICAL PICK-UP/TRAVERSEJ55001BD/DVDRF SIGNALDVD FOCUS AND TRACKING SIGNALBD FOCUS AND TRACKING SIGNALCD MAIN AND SUB SIGNALJ55004FOCUS/TRACKING ACTUATORBEAM EXPANDERSTEPPINGMOTORSPINDLE MOTOR DRIVESTEPPING MOTOR DRIVEIC52000IC55001(OPTICAL DISC CONTROLLER)(MOTOR/PWM/DRIVER)SODCRF SIGNALMOTOR DRIVE SIGNALTRACKING ERROR SIGNALFOCUS ERROR SIGNALSERVO BLOCK DIAGRAMLD CONTROL SIGNALJ55002ENDDETF/BSSZWVUMCOMTRK_PTRK_NFCS_PTLT_NTLT_PSLED1_PSIMOXFGSCLKFEGIO4FEFMOFETRAYPWMFEGIO4FEFMOFETRAYPWMLOAD_PRDYSTP1_NSIOVXRSTINFEGIO0VLDDINPW_3.3VSPM LogicDAC PWMSPI I/FSLED1_NSLED2_PSLED2_NFCS_NLOAD_NSTP1_PBEMFdetectorDigital corepre-driverpowerFETSLED ENDdetectionSTEP ENDdetectionDACPWMDACPWMDACPWMDACPWMDACPWMDACPWMDACPWMDACSLD_ENATLT_ENATRK_ENASTP_ENApowermonitorLOAD_ENAF/BF/BF/BF/BF/BSLD_ENApre-driverpowerFETpre-driverpowerFETpre-driverpowerFETpre-driverpowerFETpre-driverpowerFETpre-driverpowerFETpre-driver powerFETpre-driverpowerFETTRAY LockdetectionP12VP3.3VP5VLDselectENDDETENDDETSIOVSOMI_HIZSIOVXSLEEP V DDV DDV DDV DDV DDV DDV DDV DDV DDV PUMP1V PUMP1V PUMP1V PUMPV PUMP2V PUMP2V PUMP2V PUMP2V PUMP2141516SIMO1718493934FEFMO2 FEFMO23519FEGIO0 4313G_VWDC2O 21VWDC2O 252FEFG 12FEFG 41TPIC_A+1TPIC_A-2TPIC_B+4TPIC_B-5TPIC_CO_A+52CD_LD27TPIC_CO_A-53STP2_NSTP2_P TPIC_CO_B+54 TPIC_CO_B-55TPIC_TILT+36TPIC_TILT-35TPIC_FR+39TPIC_FR-40TPIC_TR+37TPIC_TR-38TPIC_LDM+29TPIC_LDM-30J55003J5500312LOADINGMOTORTPIC_U4749TPIC_V45TPIC_W43LASER DIODEDRIVE(LDD)LDD_AMODELDD_MSELDVD_LD26 BD_LD25V/IV/IV/IILDD_BDILDD_CDILDD_DVDDMP-BDT160GA/GN/GW/DMP-BDT161GCDMP-BD91GNDMP-BD81GA/GC/GN/GT/PU