LG LH-T2645 Service Manual page 38

3. TRAY OPEN/CLOSE SIGNAL
1) Tray open/close waveform
2) Tray close waveform
FIG 3-1
FIG 3-2
3-11
OPENSW(P4402 PIN3)
CLOSESW(P4402 PIN4)
OPEN(IC401 PIN 1)
CLOSE(IC401 PIN 2)
OPENSW(P4402 PIN3)
CLOSESW(P4402 PIN4)
OPEN(IC401 PIN 1)
CLOSE(IC401 PIN 2)