LG HT503TH Service Manual page 24

3) Tray open waveform
4. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION)
2
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Only for training and service purposes
OPENSW
CLOSESW
OPEN
CLOSE
FIG 3-3
SLO
DRV_MUTE
SLED+
SLED-
FIG 4-1
1
2
3
4
4
3
1
2
1
3
4
2-15
1
2
IC501
3
4
LGE Internal Use Only