I'm only an electronics engineer and there is no way for me to write why in this small space this can happen. Sadly as the rush to big screens and lower costs the repair side was left a little on the short end of the stick. When a product fails like this, repairs can exceed replacement cost.
My One & half year old LG 32 LE5500 LED TV developed fault, at start up company Logo & Clock cursor is coming up, later screen goes black & TV does not respond to any command from remote or keypad.
I called up the Company engineer, who tried but could not revive the TV. He changed Power supply & Interface *** controller card, in vein.
Their version is LCD Panel has developed some problem. That is why TV does not respond at booting.
My question is, if LCD Panel is faulty will Company Logo & Clock cursor will appear at start-up?
Company service people are asking huge amount to repair the set. Please guide me.