Toshiba Satellite R20 User Manual page 17

Panasonic Communications
DVD-ROM & CD-R/RW drive UJDA770
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The DVD-ROM & CD-R/RW drive UJDA770 employs a laser system.
To ensure proper use of this product, please read this instruction
manual carefully and retain for future reference. Should the unit ever
require maintenance, contact an authorized service location.
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Use of controls, adjustments or the performance of procedures other
than those specified may result in hazardous radiation exposure.
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To prevent direct exposure to the laser beam, do not try to open the
enclosure.
User's Manual
Satellite R20
xvii