18.2. DVD (Servo)1-FP82512-FP8251MOTORSPINDLEM3-FP82514-FP8251CH3CH3VCC2-Vf22VCC2-VfCH4CH4-+2VCC1CH2CH2CH1CH1OPIN+OPIN-45+-MOTORTRAVERSMBIAS2+-LDIN24251VO3- 18+-VO3+ 17+-SHIFTLEVELVO4- 16+-VO4+ 15-+-+-+SHIFTLEVEL+-BIAS1SHIFTLEVELSHIFTLEVEL-+-+-+-+VO2-VO2+VO1-VO1+OPOUTVIN3VIN1VIN2TRINOPTICAL PICK UP UNITPHOTO DETECTORA3A4B3B4A2A1B2B124FP8531 F-22FP8531 HFM25COILFOCUSFP8531 F+ACTUATORCOILTRACKING23FP8531 T-T+26FP8531(CD)DIODELASER(DVD)DIODELASERAMPHEAD11121314AD1 612266 23DRV1PWM1 2126127 3PWM0DRV0 2667VHALF 110MOTOR DRIVE48 27 MUTECH3P3P4 MUTECH1,2949LPC2TRCDATA1LPCO2LPC1LPCO1RFINPRFINNVIN10VIN9VIN8VIN7VIN6VIN5VIN4VIN3VIN2VIN1105PIN(CD)FP85313FP8531 PIN(DVD) 10312LD DRIVE11 106LD+(CD)FP8531Q8561,Q8562SUPPLY CONTROLSWITCHQR8571LD DRIVEQ8551,Q8552FP8531 LD+(DVD) 104914 96RFPFP8531FP8531 RFN 951311111217 116FE2(DVD/CD)FP8531FP8531 FE1(DVD/CD) 115165 114SUB2FP85314FP8531 SUB1 113118TD(DVD)FP853119TC(DVD) 11718FP853120FP8531 TB(DVD) 119TA(DVD)21FP8531DV5.0 LSI12020 MUTECH478HFMOND+3.3VIC8001 IC8251MN2DS0018VP C0GBG0000048SA-PT750PL DVD (SERVO) BLOCK DIAGRAM: DVD HEAD SIGNAL LINE: DVD RF SIGNAL LINE: MOTOR DRIVE SIGNAL LINE: CD HEAD SIGNAL LINE : TRACKING ERROR SIGNAL LINE: FOCUS ERROR SIGNAL LINESA-PT750PL86
