Facing TV Problems? Ask a TV Technician.
Hi, What exactly does the tV do, or not do when you press power? Please elaborate as we're not there to see the TV and what it's doing.
Okay, the small indication light is significant. Do you know how to obtain an error code from the TV? Also why did you replace the Mainboard?
Press the front panel INPUT + CH DOWN buttons (on the TV itself- not the remote) at the same time and hold for 5 seconds.The STATUS LED will then flash denoting a two digit code.
Example: If the Error Code is “23”, the LED will flash two times, pause, and then flash three times.
Let me know what you get.