RCA tv flashing vertical lines after 10 minutes of use
crwdns2934249:0crwdne2934249:0:
Have an RCA tv model RTU6549. Tv works totally fine for about 10 minutes then flashing vertical lines will appear off and on. This occurs on every hdmi port. Flashing is not consistent and sometimes will be totally fine for a few minutes at a time. Sound has no issues. What could be causing this?