14.3. SERVO BLOCK DIAGRAMRF SIGNAL MOTOR DRIVE SIGNAL TRACKING ERROR SIGNAL FOCUS ERROR SIGNALDVD-S2EE/GC/GCA/GCS/GCU/PL/PLASERVO BLOCK DIAGRAMBIAS1BIAS2MUTECH1MUTECH3MUTECH2,4,5-+SHIFTLEVEL-++-+- SHIFTLEVEL-+-++- SHIFTLEVEL-++-+-+-SHIFTLEVEL-++-+-OPIN-OPIN+SPINDLE MOTORTRAVERSE MOTORVIN3S2601CLOSE SWOPEN_SWCLOSE_SWOPOUTAD14Vp-p(0.5msec./div.)IC8251-15,16,17,18VIN1VIN5VIN4VIN2TRVFTMUTETRAY_DRYSPMUTESPDRVFODRVTRDRVTRSDRVMUTE3VO5-VO5+VO4-VO4+VO1-VO1+VO2-VO2+TRAY_MUTSHIFTLEVEL-++-LOADING MOTORM2601VO3-VO3+(MOTOR DRIVE)IC8251ACT F-ACT F+ACT T-ACT T+OPTICAL PICKUP UNITACTUATORCOILTRACKINGCOILFOCUSRFINNRFINPLASER DIODE(CD)LPC01LPC1LPC02DRV4(SW)VIN10(CD)VIN9(CD)VIN5(DVD/CD)VIN8(DVD/CD)VIN7(DVD/CD)VIN6(DVD/CD)OPTICAL PICKUP UNITPHOTO DETECTORA3A2A4A1T1(CD)(DVD)T2B3B2B4B1LASER DIODE(DVD)AMPHEAD(DV5.0)IC8001S2602OPEN SW626346476059649695143114126127122115116113112111104103106727523226121125141326101718151696667DVD-S2EE / DVD-S2GC / DVD-S2GCA / DVD-S2GCS / DVD-S2GCU / DVD-S2PL / DVD-S2PLA37
