Samsung DVD-P360/CDM Service Manual page 30

Troubleshooting
No Tray open/close
ZIC1-193, 194
No
Close End (Open;"L", Close ; "H")
Check ZIC1 perpheral circuit.
Open End (Open;"H", Close ; "L")
Yes
Check FIC1-11
No
Check FIC1 perpheral circuit.
output at OPEN/CLOSE.
Yes
Check signal line state from
FIC1-11 to tray motor.
5-6 Samsung Electronics