Samsung UN55KU6500FXZA no standby light, but has power
I have a UN55KU6500FXZA Samsung TV that will not turn on. When plugged in there is no standby light, but the backlight comes on. If I press the power button the standby light will blink but nothing else happens. The power board tests out fine as best I can tell so I replaced the main board. There was no change in performance. I then replaced the power board and still no change. I noticed if I unplugged and replugged the LVDS cables that I could sometimes get the standby light on and the screen would quickly show SmartTV before turning off and reverting to no picture and no standby light. I then replaced the LVDS cables and that didn't change anything. Hoping that someone has an idea as to what else I should try or any ideas on fixing this. Thank you in advance.
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