tv picture goes off after 20 min some imes after 5 hours wait 20 min then switch it back on then its ok unill it goes off again sound still ther when picture goes off
Most likely its a dry joint / poor connection as can go faulty when its cold or hot. Need a qualified Tv Engineer to check inside TV sometimes can be minor but sometimes a poor connection can damage board (over heat ) ? Minor damage can be repaired . Tv 's use live chassis not for begineers to play with, Dangerous if not experienced
