T.V. was not coming on, when it was plugged in you could hear the t.v booting up but the power light would not come on. Now the power light stays on but no picture. And you can turn it of with out unplugging it
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Hi, this is a faulty power board. i would replace this damaged circuit board. thisWill fix this issue you are having at this moment with your unit.The reason for the on/off cycling fans is due to the power board controllers inability to open the main fan circuit, which shuts off the fans once you power down the unit.
The other inputs bypass the tuner, so I'd be looking at tuner failure. RCA sets are known for having poor solder connections inside the tuners. I would start there. If you are not comfortable with working insode the set or can not solder, check with a local service shop to get an estimate for resoldering/replacing the tuner.
This happened to my TV a year or so ago. It ended up being a capacitor in the power supply. It took the tech about 10 minutes to replace and cost me 400 bucks!! He wouldnt tell me what he replaced, but I be it was a 2.00 part. If you are good with a soldering iron, you might be able to find it and replace it, but if you mess something up, it will cost you. The tuner module was over 700 bucks.