5. Maintenance and Troubleshooting
PlexWriter 8/2/20 Operation Manual
51
Symptoms
Excessive noise.
Excessive vibration.
Possible Cause #1
•
CD is poorly balanced. Poorly manufactured discs that are out of balance or discs
with poorly distributed ink on labeling cause significant vibration at high speeds.
Read errors may also occur.
•
Out-of-balance conditions can also exist if the disc label adds more weight to one
area of the disc than another.
•
Adhesive labels may also cause out-of-balance conditions.
Solution #1
•
Remove any adhesive labels on the label side of the disc.
•
Clean the disc as detailed on page 40.
•
In DOS or Windows (3.x, 95, 98, NT), use Plextor Manager to lower the drive
speed. (PC installation.)
•
If there is no foreign substance on the disc, contact the disc manufacturer for a
replacement.
Symptoms
•
ON/READ indicator flashes 4 times.
Possible Cause
•
CD is unreadable. Plextor’s drives are designed to automatically eject any
unreadable CD.
Solution
•
Be sure that the disc or audio CD is “label-side” up in the tray.
•
Ensure the CD-R or CD-RW disc is written correctly; an incorrectly written or a
damaged, scratched, or otherwise unreadable CD will cause this same symptom.
•
Insert a known good disc to correct the problem.
