OPERATING METHOD OF AN OPTICAL DISK DEVICE CAPABLE OF PREVENTING THE DANGER OF THE EJECTION OF A TRAY WHEN ALL LOADING SWITCHES DO NOT WORK

摘要

PURPOSE: An operating method in an optical disk device is provided to reduce production costs of the optical disk drive by removing an auxiliary switch for loading.;CONSTITUTION: If a loading switch is in an off-state, a control unit determines whether a tray is opened, and turns off a servo(S600, S630, S640). If the loading switch is in an on-state, the control unit confirms RPM(Revolutions Per Minute) by monitoring an FG(Frequency Generating) signal outputted from a spindle motor(S610). When the RPM becomes 0, the control unit confirms the size of a spindle control signal(S620). If the spindle control signal is not 0, the control unit determines whether the tray is opened while the loading switch is not working well, and turns off the servo.;COPYRIGHT KIPO 2013