Sylvania DVR90DG Service Manual page 45

Case 5 (Retry.)
Tray ejection direction
Tray insersion direction
SLED
open
INNER-SW
close
Retry frequency
1st time retry
2nd time retry
3rd time retry
4th time retry
5th time retry
6th time retry
S1
Start retry.
V1+
6 v
7 v
8 v
9 v
9 v
9 v
1-13-5 R2NTI