Since I never see a TV tech here your best bet is to try a new board. It's cheaper than a service call and since you looked I take it for granted you know your way around LETHAL VOLTAGES.
Since this is a LED backlight I'm unsure about a lamp and inverter. LEDs use a power supply, not an inverter.
Sharp Aquos LED LC-60LE632U.
TV works fine. If I unplug it and then plug it back in I get a flash code of 1 long and 1 short. The service manual says it's a lamp/inverter issue. I did the power button then plug back in reset and the the tv works flawlessly. I can power on and off with no issue, it only happens when I unplug tv. I have a feeling this is an issue that's going to get worse. I took the back off and I'm thinking it's the power supply, it looked slightly burned in spots. I'm going to see how to post the pic on here. Anyone think it could be the power supply causing this? Thank you so much in advance