pn50b450b1d No Power

[Hiatsu2k8]

Re: pn50b450b1d No Power

It could but it's not important at the moment. If you leave the X board unplugged and plug the Y board back in does the tv start normally ?

No. The x board connects to the power supply via y board. The only time get anything like normal is when I disconnect both y and x. Then I get a chime but no picture.

[mmartell]

Re: pn50b450b1d No Power

If what you've said so far is accurate you have a failed X Main board which will have to be repaired or replaced.

You can use the same continuity test on the legs of the devices screwed to the heatsinks. For three legged devices check if they beep in all combinations of leg touches. No ground screw just use the three legs of those devices.

[Hiatsu2k8]

Re: pn50b450b1d No Power

If what you've said so far is accurate you have a failed X Main board which will have to be repaired or replaced.

You can use the same continuity test on the legs of the devices screwed to the heatsinks. For three legged devices check if they beep in all combinations of leg touches. No ground screw just use the three legs of those devices.

Thank you very much I feel like I learned a lot!