Re: VIZIO L42HDTV10A No power coming out of PS board

Yeah thats basically what I'm hoping for... Not saying there couldn't be a problem with one of the other main boards but I think that's not very likely? All we know for sure is that at the least, the power supply board is not functional and needs to be fixed/replaced.

Though it would kinda stink if the power supply board was replaced/fully functional and the TV still didn't work... then you're potentially wasting money on a TV that might not be fixable.

Re: VIZIO L42HDTV10A No power coming out of PS board

Ok, I got the IC removed but slightly damaged about half of the traces... so I ordered a used board off ebay for about $50.

Got the new board in the mail today and I made a huge mistake.... in my excitement to test it out and see the TV work again I set it inside of the TV case, plugged everything in, then plugged in the power cable. Got a quick spark from under the board and my heart sank. I hadn't screwed the board in place... very very very dumb move on my part.

One of the traces on the bottom...

Re: VIZIO L42HDTV10A No power coming out of PS board

Kinda tough to make out the IC numbers but I can see "DEI 84 9XXX626" with a "01D" above it, the XXX part represents the blown hole...

I'm confident I could replace it if I had the correct part in front of me but it's looking like it might be easier to just replace the whole board? Any idea how much the IC and/or MOSFETs and gate drive would all cost? The board is a DPS 2838 AP A, found it on a few sites but it's out of stock on a lot of sites.

I don't know much about MOSFETs...

Hello,

My Vizio set completely stopped working a couple days ago after we heard a loud pop while watching TV. Plugged into the wall I can't get anything to light up. Took off the back and checked the power supply board:

120VAC on both sides of the fuse near the main power coming in w/respect to blue wire
165VDC across the largest cap
0VDC on all pins of CN5(main board connector) w/respect to SGND pins on CN5
0VDC on PSON pin (pressed or unpressed) w/respect to SGND

None of the caps look like they're bulging/exploded/leaking. The...