BenQ DV3250 User Manual - Page 46

English There is no picture or sound, just noise. Picture is not clear. No sound. • Make sure the antenna cable is properly connected. • Change channels to confirm if the symptom is still present. • Make sure the antenna cable is properly connected. • Change channels to confirm if the symptom is still present. • If PC is selected as the input signal source, use the Auto function in the PC Menu to let the TV adjust picture automatically. • Check whether you have selected Mute for Audio setting. • Make sure the volume is not set to minimum. • Check the AV cables for disconnection. Antenna Symptoms Possible Causes The picture is not sharp or the picture moves contains image movement. • The reception may be weak. • Change channels to confirm if the symptom is still present. • Make sure the outside antenna is not disconnected. • Make sure the antenna is facing the right direction. • Make sure the antenna is facing the right direction. • Picture ghosting is caused by reflections from buildings, The picture is doubled or tripled large metal structures and mountains. Carefully realign your antenna to minimise the ghost images. Ultimately a higher quality antenna professionally installed may be necessary to reduce the ghosting. The picture is spotted • There may be interference from automobiles, trains, high voltage lines, neon lights, etc. • There may be interference between the antenna cable and power cable. Try positioning them further apart. • Is the display receiving interference from other devices? There are stripes on the screen or colours fade Transmission antennas of radio broadcasting stations and transmission antennas of amateur radios and cellular phones may also cause interference. • Use the display as far away as possible from devices that may cause possible interference. 38 Troubleshooting