While you wait for answers, we may have found some information which could help you.
Click here for Power Fine Lefthow can i fix my tv symphonic lcd-b20a6?
how can I fix my Symphonic 32" lcd tv?
Symphonic w27f4 black screen?
Hissing sound after power surge?
Symphonic model WF27F4 TV is it worth repairing?
Symphonic WFT20M4?