On Tuesday, December 8, 2020 at 7:50:49 AM UTC-5, wrote:
On Monday, December 7, 2020 at 9:03:09 PM UTC-5, wrote:
Hi Group, need help choosing a main board for an RCA TV model .. led32c45rq.. main board # fre01m3393lna35-a2.. i want to know if this board ..42RE01M3393LNA35-A2 Main Board for LED42C45RQ will work in replace of the one mentioned ???
The only way is to try it. There are two potential problems of high probability: the keyboard switches may not work as assigned, and you may have no picture, a badly pixelated picture, or an upside down picture because these boards don't drive the same screen. If the board is close enough, swapping the eeprom from the original board will usually fix the picture issues and likely the keyboard issues, but that's assuming the original eeprom is good. Since the eeprom is the most likely cause of any non-lightning failures of these boards, you may be moving a bad eeprom into a good board.

I've done that type of swap when I had a board in stock as it only takes a few minutes to try it, but wouldn't order a board for the attempt.

Did you confirm the power supply is OK? Getting standby 5V is not enough. You can jump the stby pin to the ps on pin and see if the 12V comes up. If it doesn't, the power supply is bad. If it does, it's the main.

I'm reading a short across both sides of the fuse 3a/125v to ground, on the tcon board, there's short somewhere.???