Question about Vizio GV47LF Television
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: No picture on vizio lcd
It's likely not a backlight, but a mainboard. If you are feeling frisky, take the back off and get the model number off the mainboard and check eBay.
Posted on Aug 22, 2009
Does LCD screen backlight come on? If so proceed....
USE:CAUTION WHEN DOING THIS....
Try this if repairing yourself...find power supply, small board with no cover over it...check voltages on output pins/plug/connectors (white plugs) three in a row...
1 Plug has 24Volt supply..1 has 12Volt supply and 1 has 5Volt supply when read to ground (screw that holds board in) if you have these voltages it's a safe bet it's the main control board...I just replaced mine and it fixed a problem like yours.
Posted on Sep 02, 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: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.
Posted on Jan 22, 2010
Testimonial: "If all things are equal than the solution is at hand. I thamk you!"
SOURCE: I had my Vizio VO42L
Tv turn on now,have a flashes a picture only a few sec.than dies and have sound left only?Yes,than those 2 long boards to the left and to the right call the LCD inverter boards are dead.These 2 long LCD inverter boards,job are to help the LCD screen panel to have a backlight to produce a pictrue.Tries websites like Shopjimmy.com.Ebay.com to buy those refurbishes 2 long LCD inverter boards for the replacement.
Posted on Dec 08, 2010
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