LG HT903WA Service Manual page 25

5. LENS CONTROL RELATED SIGNAL(NO DISC CONDITION)
FOO
F+
F-
6. LASER POWER CONTROL RELATED SIGNAL(NO DISC CONDITION)
DVD MDI
DVDLDO501
CDLDO
LGE Internal Use Only
FIG 5-1
FIG 6-1
1
1
2
3
2
3
1
1
2
3
3 2
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IC501
IC501
Only for training and service purposes
IC501