Medium Optical Disk (RW551/RW552) Library
4–38
EK–MOL80–SV. B01
Table 4–5 Available Internal Tests for the RW551 and RW552
(
continued
)
Test Name
Description
TOP THUMB
Reports ON or OFF. Looks at the top thumb sensor
which reports whether or not the thumb that is
currently on the top side of the disk transport
mechanism is in the forward position. If ON is
reported the thumb is in the back position; if OFF is
reported the thumb is in the forward position. This
configuration should be used by authorized service
representatives only.
TRANSLATE SENSOR
Reports ON or OFF after looking at the translate
sensor.
Optical Disk Cleaning–All Jukeboxes
CAUTION
Data may be lost as a result of scratches
introduced during optical disk cleaning.
Cleaning optical disks is not a preventive
maintenance procedure and should not be
attempted unless disks are obviously dirty.
Cleaning a disk is a last resort to recover data.
Every effort should be made to instruct the
customer of the importance of placing the
jukeboxes at locations that do not have a high
concentration of airborne dust. A clean
environment is especially important if the
customer's applications cause optical disks to
remain in the drives with the drive's shutter open.
