answered question 1/26/2009 What Causes The Black Screen Of Death On LCD Tv's? I've A LG 42in LCD Tv That Will Turn On, But Will Not Produce Any Audio Or Video. Any Help Would Be Greatly Appreciated. My best guess is that the monitor fuse is perhaps damaged or the audio/video connector box needs repairments... Try put cables right perhaps? Don't mess around electricity a lot though ! Sorry, hope that answers your question?