⟐ Commented July 08, 2025 at 6:30 MST

Model Number: RCA LED46C45RQ

I salvaged an RCA 46” TV that has an indicator light, but doesn’t turn on when the power button is pressed. When I go to plug it in, the power supply draws power and I can hear the typical electrical arc hiss when the AC prongs bridge; so clearly it doesn draw some power. The Red LED lights, but the LEDs do not come on at all when plugged in, or when the power button is pressed.

However, when the power button is pressed (the power button is “clicky”, so it’s not a bad button), the TV does not light. This is also true if I hold the power button or press multiple times. I don’t have the remote for it, but given that it doesn’t apear to function when the power button is depressed, I don’t think it is necessary for solving this issue. There are also no LED indicators on the board to tell me if certain boards have power.

Here are some pictures I took:

I have a multimeter :)

What approach should I take to restore the TV?

Sorry for the delay, work and life complications.

I thought that the power board was the issue due to it not complying to the power pin requirements written on the board, but the replacement board that I got has the same issue. I believe these to be some kind of standard.

Anyway, I’ve replaced all boards on the TV (the 2 pictured), but the TV still does not light. The power indicator will toggle on and off depending on the switches on/off status, but no signal on the TV itself.

I believe it to be an issue with the LED array or something. Is there anything I should check aside for all connections to the board and AC power (which were double checked first obviously (as was the LED indicator)).

Not sure where to go from here.

⟐ Commented March 26, 2025 at 15:41 MST