User manual BENQ SH940

[. . . ] 87 Important safety instructions Your projector is designed and tested to meet the latest standards for safety of information technology equipment. However, to ensure safe use of this product, it is important that you follow the instructions mentioned in this manual and marked on the product. Always open the lens shutter or remove the lens cap when the projector lamp is on. This projector is designed to operate safely within a mains voltage between 100 to 240 volts AC, but could fail if power cuts or surges of ±10 volts occur. [. . . ] You can set the blank time in the SYSTEM SETUP: Basic > Operation Settings > Blank Timer menu to let the projector return the image automatically after a period of time when there is no action taken on the blank screen. The length of time can be set from 5 to 30 minutes in 5-minute increments. Do not block the projection lens from projecting as this could cause the blocking object to become heated. Setting the Sleep Timer You can set the Sleep Timer interval so the projector powers off after the specified time period of inactivity (regardless of signal). Set the sleep timer in the SYSTEM SETUP: Basic > Operation Settings > Sleep Timer from among Disable/30 min/1 hr/2 hr/3 hr/4 hr/8 hr/ 12hr. Freezing the image 34 Operation Press FREEZE on the remote control to freeze the image. To release the function, press any key on the projector or remote control. Even if an image is frozen on the screen, the pictures are running on the video or other device. If the connected devices have active audio output, you will still hear the audio even though the image is frozen on screen. Operating in a high altitude environment We recommend you use the High Altitude Mode when your environment is between 1500 m –3000 m above sea level, and ambient temperature is between 0°C–35°C. Do not use the High Altitude Mode if your altitude is between 0 m and 1500 m and ambient temperature is between 0°C and 35°C. The projector will be over cooled, if you turn the mode on under such a condition. Press MENU/EXIT and then press / until the SYSTEM SETUP: Advanced menu is highlighted. Operation under "High Altitude Mode" may cause a higher decibel operating noise level because of increased fan speed necessary to improve overall system cooling and performance. If you use this projector under other extreme conditions excluding the above, it may display auto shut-down symptoms, which is designed to protect your projector from over-heating. In cases like this, you should switch to High Altitude mode to solve these symptoms. However, this is not to state that this projector can operate under any and all harsh or extreme conditions. Adjusting the sound The sound adjustments made as below will have an effect on the projector speaker(s). Be sure you have made a correct connection to the projector audio input. See "Connection" on page 19 for how the audio input is connected. Muting the sound To adjust the sound level, press MUTE on the remote control, or: 1. Press MENU/EXIT and then press / until the SYSTEM SETUP: Advanced menu is highlighted. [. . . ] This symbol on the product or on the packaging indicates that this can not be disposed of as household waste. You must dispose of your waste equipment by handling it over to the applicable take-back scheme for the recycling of electrical and electronic equipment. For more information about recycling of this equipment, please contact your city office, the shop where you purchased the equipment or your household waste disposal service. The recycling of materials will help to conserve natural resources and ensure that it is recycled in a manner that protects human health and environment. [. . . ]