Optoma TWR1693 Manual page 3

Do not attempt to service this projector yourself. Opening or re-
moving covers may expose you to dangerous voltages or other
hazards. Please call Optoma to be referred to an authorized ser-
vice center near you.
8. Do not let objects or liquids enter the projector as they may touch
dangerous voltage points or short-out parts that could result in a
fire or electric shock.
9. See projector enclosure for safety related markings.
10. The projector should not be adjusted or repaired by anyone
except properly qualified service personnel.
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