Question about Vizio Televison & Video
SOURCE: Vizio P42HDTV Power on Diagnosis
Please check the U29 8 pin little surface mount mosfet it has this letters > FDS4935 > > In this part inputs 13.2 volts which is ok for the near 12 vdc but it > outputs 1.250 vdc i am 100% sure that this is all the problem > > check it out, and tell me if you´re agree with me > > On this output pin it feeds the audio Ic, the 7809 and the tuner side board > which needs de 12vdc too and its getting only the 5vdc part > > what do ya think?? > > Richard
Posted on Apr 13, 2008
SOURCE: polaroid 2700 hdtv power supply
The only place I have been able to find the power supply or main board for this is shopjimmy.com or Ebay but even there I can find none.Tell your husband to check for puffy capacitors in the power supply.This is a very common problem with these power supplys.
Posted on Jan 15, 2009
I had the same problem after having a Vizio for 2 and a half years. I
left the room for a minute, i came back and the screen went black.
There was still power to the unit and you could see that the back light
was working, just no picture, no sound, and you couldn't use any of the
buttons. The only way to turn it off was to unplug it. It would then
start up, with the Vizio logo going from orange to white, and then do
the same thing all over, no pic or sound.
HOW I FIXED MINE: I ordered a new "main PCB" from tigerdirectparts.com (you can also use searspartsdirect.com). This is the circuit board with all of the inputs on it (hdmi, cable, etc.) I opened it up, disconnected the old one, put in a new one and now it works fine. I used both serial numbers on the board to search for it online. It cost me $144 to do it, but that's better than $450 for a new TV. My tv is the vx32l hdtv10a. I hope that helps.
For me the part number was either (depending on the vendor) : 0171 2272 2174 or it was 3632 0212 0150. Check your circuit and see if any of those numbers match up.
Posted on Jan 22, 2010
Check ur power source with other devices?Yes.Than,the power supply board it dead.That the board,where the power a/c cord plug into it.Try website like Ebay.com to buy a refurbish power supply board for the replacement.
Posted on Oct 23, 2010
Logic Control D Board got nothing to do with this problem. This is your main power supply gone bad(usually not the sub power supply). I just repaired my VIZIO by replacing main power supply. Just remove back cover and your board will be right in the middle of the screen. Just get board part/serial # and google it. My best price was through eBay(around $100). Everything is fine now.
Posted on Feb 07, 2011
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