Section 5. Maintenance and Troubleshooting
PlexCombo 20/10/40-12A Installation and Users Manual
41
Troubleshooting: Reading Discs
Symptom Possible
Causes
Solutions
Excessive noise.
Excessive
vibration.
Slow read
performance.
CD is poorly balanced.
Poorly manufactured
discs or discs with
poorly distributed ink on
labeling cause
significant vibration at
high speeds because
they are out of balance.
Read errors may also
occur.
If the disc label
(especially adhesive
labels) adds more
weight to one area of
the disc than another it
can also cause the disc
to be out of balance.
Remove the adhesive label, if
present. Be careful not to damage
the foil underneath.
Clean the disc as detailed on page
31.
If there is no foreign substance on
the disc, contact the disc
manufacturer for a replacement.
Can read only
the last session
of a multisession
CD-R or CD-RW
disc.
“Import previous
session” or a similar
feature was not
enabled when the
multisession disc was
created.
Use CD-R or CD-RW mastering
software to import session(s). Such
features may vary in name
depending on the software being
used. Please refer to the
appropriate manual regarding this
feature.