Insignia IS-TV040918 User Manual (English) - Page 23

Picture defects and countermeasoures(VHF/UHF reception) The most common types of television interference are as follows: SNOWY PICTURE Snowy picture is usually due to weak signal. A djust antenna or install an antenna amplifier. DOUBLE IMAGE OR GHOSTS Double images are usually caused by the blocking of tall buildings. A djust the direction of antenna or lift it higher. RADIO WAVE INTERFERENCE Wavy patterns are moving on the screen, which are usually caused by nearby radio transmitters or shortwave receiving equipment. HIGH TEMPERATURE ELECTROTHERMAL INTERFERENCE Diagonal or herringbone patterns of picture distortion appears on the screen, which is probably caused by high temperature electrothermal equipment used in a nearby hospital. NOTE:If one of these symptoms appears on the screen when the cable from a company is connected, this may be due to the local cable company broadcast. 23