LG LM-M1030A Service Manual page 23

#4. SPINDL E DRIVE AND MOTOR WAVEFORM
(IC803 pin 6, 2) wh en TOC reading
#6. RF, TRA CKING AND FOCUS ERROR WAVEFORM
(IC802 pin 8, 2 , 23) d uring normal play
IC803: SP IN
IC803: SP +
IC802: ARF
IC802: T E
IC802: F E
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#5. T RACK DRIVE AND MOTOR WAVEFORM
(TP860, IC8 03 pin 23) durin g normal p lay
TP 860
IC803: T A+