SOURCE: Vizio TV 2006 vx32Lhdtv doesnt work.
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:Look through the back vents for a white light to make
sure the backlight still works. 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.
Testimonial: "If all things are equal than the solution is at hand. I thamk you!"
SOURCE: I HAVE A VIZIO 55
More likely to be the backlight inverter board, or the main power supply for the inverter board is bad, power supply is easier to get to than the inverter board, so look there first. Look for burnt parts, bad capacitors.
http://en.wikipedia.org/wiki/Capacitor_plague
SOURCE: 26" LCT HDTV Backlight Problem
It can be that the inverter is not getting the 24vdc fromt he power supply module, check for that first, you can check it at either the power supply termninals or at the inverter board. Look to see if the power supply has any leaking/bulging top caps. Modules are easy to replace, fixing it down to component level is not so easy unless you have proper tools an electronics knowledges.
Power supply and Inverter bd: http://www.shopjimmy.com/catalogsearch/result/?q=Vizio+VA26L+
Learn more here:
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net
Testimonial: "Thanks. I swapped out the inverter board for one that I know works, but still have the same proble. I'll look for indications of a bad power supply for the backlight."
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