I've been testing the mainboard which is the only board on the tv and haven't found any issues as to why this tv won't turn on. It has standby power and I can't figure out how to manually turn it on by jumpering as I don't know what pin it is. I've tested the diodes, a few caps and regulators and didn't see any issues. Here are pics and voltages on pins.
GND - 0
K7/N - 0
K6/P - 3.3
K5/M - 3.3
K4/V- - 3.3
K3/V+ - 3.3
K2/C - 3.3
K1/C+ - 3.3
K0/S - 3.3
GND - 0
IR - 4.78
GRN - 0
RED - 2.75
5V - 5
GND - 0
K7/N - 0
K6/P - 3.3
K5/M - 3.3
K4/V- - 3.3
K3/V+ - 3.3
K2/C - 3.3
K1/C+ - 3.3
K0/S - 3.3
GND - 0
IR - 4.78
GRN - 0
RED - 2.75
5V - 5
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