Sony SLV-D983P Service Manual page 128

No Tray open/close
DIC1-55 is Open ; "L" ?
Close ; "H" ? DIC1-58 is Open : "H"?
Close : "L"?
Yes
Check DRIC 17, 18
output at OPEN/CLOSE
Yes
Check signal line state from
DRIC-17, 18 to tray motor.
(DVD Section)
No
Check DIC1 perpheral circuit.
No
Check DRIC1 perpheral circuit
and DCON1 connector.
(OPEN Waveform)
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