Samsung Le32R88BD had striations on start up that cease after 3-4 minutes , Signal board, T con board changed no avail . Discovered bank of caps that needed replacing plus a Tantalum near Mains input plug that needed replacing .br br ONLY Eletronicaly Trained Competant Engineeers should attempt to repair electronic equipment , risk of fatal injury to those without proper training is possible and they are advised to seek profesional advice .