Page 12 - Testing Electronic Components

12. Ventilation

Be sure that your work place has good ventilation. Prolong exposure or
excessive inhalation of vapours from chemical spray and fumes from lead
may cause damage to your nervous system or body.

13. Laser Warning Labels

If you are troubleshooting DVD, VCD, laser printer and other laser-
related products, you will notice a laser warning label on or near the laser
head assembly. Do not stare at the laser beam at any time. Always avoid
directly exposing your eyes to the beam. Prolong exposure of laser beam
to the eyes may cause eye injury or loss of sight. Do not attempt to adjust
the laser gain controls by any methods, other than those described in the
service manual. Incorrect adjustment can increase the laser radiation
beyond acceptable limits. You have to use a laser power meter to confirm
the existence of a laser beam.

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