Waveforms Of Major Check Point - LG LAC-M7600 Service Manual

❏ WAVEFORMS OF MAJOR CHECK POINT
#1. SPINDLE DRIVE AND MOTOR WAVEFORM
IC501(21), IC502(12) during TOC reading
#3. FOCUS DRIVE AND MOTOR WAVEFORM
IC506(25), IC504(15)
• When focus search failed or there is no disc on tray
#4. TRACK DRIVE AND MOTOR WAVEFORM
IC502(24), IC504(17) during TOC reading
#2. RF WAVEFORM
IC506(45), IC506(49) during TOC reading
• There is disc on tray and focus search success
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