LG 32" 1080p TV, broken (Dyke Road area BN1)

Attractive silver full HD LG TV from 2015 (model 32LB580V). Went black one day, and now fails to turn on (with one short and two long flashes of its red LED). I tried replacing the power board, but this didn't help. Perhaps someone else has the knowledge to repair it, or at least salvage parts from it?