Samsung 55 Inch Full HD LED Smart TV (UN55DSF) is a SMART TV with built-in web browser and has access to apps that let the TV access popular. Now i am working on samsung UN55DSF led tv which had blinking red light and after reading posts from others and answers to them i. Original Samsung Parts & Accessories. LED TV. UN55DSF. UN55DSFXZA, UN55DSFBZA. H, HQ Save model · Save model for later.