How to fix dotted lines on Insignia NS-32E740A12 LCD TV screen?
- WWilliam HendricksAug 31, 2025
If your Insignia LCD TV displays dotted lines or stripes, ensure that the antenna or cable TV is connected correctly and securely. If you are using an antenna, the digital channel signal may be low, so consider adjusting the antenna or using a highly directional outdoor antenna or set-top antenna with a built-in amplifier. Also, make sure that the video cables are connected securely and try a new set of video cables, as the ones you are using may be bad. Other devices may be causing interference with your TV. Try turning off one device at a time to determine which device is causing interference and move it further from the TV.