RCA LED46C45rq, power supply has 5V standby power but doesn't come on

Aug 11, 2018
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I believe this tv was hit by a power surge this week. The LED standby light is not on. The power supply output has 5V at one pin when the tv is plugged in (I assume this is standby power), but the other 5V and 12V pins do not. Nothing changes when I push the power button. I have checked that the AC in has over 110 volts. My suspicion is that the main board should 'wake up' the other output pins on the power supply board when the power button is pressed. Is this correct? If so, am I correct in assuming the issue is probably with the main board? Thank you, Mike
 
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