ViewSonic PJ1172 PJ1172 User Guide, English - Page 42

Air Filter WARNING • Please carefully read the "Quick Start Guide". • Before caring the air filter, make sure the power switch is off and the power cable is not plugged in, then to replacing wait at least 45 minutes for the lamp to cool sufficiently. • Use only the air filter of the specified type. Please call ViewSonic Tech Support for P/N. • Do not use the projector with the air filter and filter cover removed. The use without the air filter could result in damage. CAUTION • If the air filter becomes clogged by dust or the like, internal temperature rises and could cause malfunction. The power is automatically turned off in order to prevent the projector from overheating internally. Caring For The Air Filter The air filter should be cleaned about every 100 hours. If the indicators or a message prompts you to clean the air filter, clean the air filter as soon as possible. If the soiling will not come off the air filter, or it becomes damaged, then it needs to be replaced. Please replace the air filter as soon as possible. memo When you replace the lamp, please replace also the air filter. 1 Turn off the projector, and unplug the power cord. Allow the lamp bulb to cool for at least 45 minutes. 2 After making sure that the projector has cooled adequately, remove the filter cover and the air filter. 3 Apply a vacuum cleaner to the filter cover and Hold the release buttons of the filter cover while pulling it down. the air filter to clean. If the soiling will not come off the air filter, or it becomes damaged, it needs to be replaced. If the air filter needs to be replaced, contact your dealer to prepare a new air filter. Tell the dealer your air filter type. 4 Insert the cleaned air filter or a new air filter and replace the filter cover. 5 Turn on the projector power and reset the filter timer. Hold the release button of the air filter while pulling it out. (1) While the projector is running, press the MENU button to open the menu. (2) Choose the "OPTION" on the menu using the S/T button, then press the X button or ENTER button. (3) Choose the "FILTER TIME" using the S/ T button, then press and hold the RESET button for 3 seconds. (4) Choose the "RESET" using the S button. memo Incorrectly resetting the filter timer (resetting without replacement, or neglect of resetting after replacement) will result in incorrect message functions. ViewSonic PJ1172 37