Vs grounded on Lower X-buffer?

[bigmatt0211]

When I check continuity on my lower X-buffer board, the Vs seems to be grounded. Is this normal? When I connect the power supply to it, the Vs goes to ground. I don't see any causes.

I have a Samsung PN51E530A3FXZA that won't turn on, but I have a seperate thread for that.

[bigmatt0211]

Re: Vs grounded on Lower X-buffer?

Does this sound normal to anyone?

[ReeceyBurger123]

Re: Vs grounded on Lower X-buffer?

Checked Ymain for S/C common issue on these ?

[bigmatt0211]

Re: Vs grounded on Lower X-buffer?

Well this is just the Lower X-buffer completely disconnected from any other circuit. Vs has direct continuity to ground.

[bigmatt0211]

Re: Vs grounded on Lower X-buffer?

Alright, now that the forum is back up, I can continue! Reecey, thank you for your help so far. I really hope we can get this thing figured out.

[ReeceyBurger123]

Re: Vs grounded on Lower X-buffer?

Ok take the Xmain out it has some Smd mosfets on the underside possibly them shorted.