User manual SONY VPL-CS20

[. . . ] When you connect the projector, make sure to: Turn off all equipment before making any connections. When pulling out a cable, be sure to pull it out from the plug, not the cable itself. [. . . ] When replacing the lamp after using the projector, wait for at least an hour for the lamp to cool. Do not put your hands into the lamp replacement slot, and do not allow any liquid or other objects into the slot to avoid electrical shock or fire. Disposal of this product may be regulated if sold in the United States. Press the following keys on the Remote Commander in the following order for less than five seconds each: RESET, b, B, ENTER. Remove dust from the outside of the ventilation holes with a vacuum cleaner. This value varies depending on the environment or how the projector is used. When it becomes difficult to remove the dust from the filter with a vacuum cleaner, remove the air filter and wash it. Wash the air filter with a mild detergent solution and dry it in a shaded place. Attach the air filter so that it fits into the each claws (6 positions) on the air filter covers and replace the cover. If you neglect to clean the air filter, dust may accumulate, clogging it. As a result, the temperature may rise inside the unit, leading to a possible malfunction or fire. If the dust cannot be removed from the air filter, replace the air filter with the supplied new one. Be sure to attach the air filter cover firmly; the power can not be turned on if it is not closed securely. If the projector appears to be operating erratically, try to diagnose and correct the problem using the following instructions. [. . . ] Flashes in green for several tens of seconds after the power is turned on. Also, flashes for about 45 seconds after the power is turned off with the I/1 key. [. . . ]