Question about Vizio L32 32 in. LCD HDTV

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Hello I got a tv lcd vizio and trying to repair by myself I found the inverter is responsible for the screen , when a touch this parts with a plastic stick then I have not picture but i got audio ...then I turning off the vizion and when I turn on the vizio again I got picture again

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Check any capacitors on the inverter board. If any look puffed up the are leakey. Replace the caps and the set should work ok .. this is a little hard to do and caps have polarity so you have to be very careful installing new ones. if you are not good at soldering you may want to hire it done

Posted on Jul 07, 2008

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Parts needed for VIZIO TV with backlight out


You can fix it if you have some repair experience, you will need the power inverter board and/or the backlight lamps of the LCD screen, first try the power inverter board, the function of it is to up the voltage from 12/24/48V to a 800-1500V needed for the LCD back lamps.

Nov 17, 2014 | Vizio XVT473SV 47 in. LCD HDTV

1 Answer

My screen dims down to a black screen then lightens up again


Your LCD is dying. You need a new inverter.
I found one on google http://cgi.ebay.com/Vizio-VO47L-FHDTV20A-Inverter-Board-6632L-0487A-Slave-/130461530115

Apr 09, 2011 | Vizio VO47L 47 in. LCD TV

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WE HAVE A VIZIO TV MODEL VW22L, THAT HAS NO PICTURE ONLY SOUND, SOUNDS LIKE A COMMON PROBLEM WITH THEIR TV'S. IS THIS A COST EFFECTIVE REPAIR WE CAN MAKE OURSELVES, IF WE CAN GET THE PARTS. ITS KNOW ON...


Hello Sir, Hi, the problem is the Inverter Board the powers the back lamp. So no illumination no picture. Search ebay for the board. call your dealer about the part

Jan 12, 2011 | Vizio VW22L 22 in. LCD HDTV

1 Answer

Hello. i have a vizio vw32Lhdtv40A my screen is light up, i have volume and sound but no picture? i am confused as to y i have sound and no picture


The tv have a long board call a LCD inverter board.This long LCD inverter board is dead,that why u have picture flashes few min than dies,have sound left only.The long LCD inverter board help the LCD screen panel to have a backlight to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish long LCD inverter board for the replacement.

Oct 16, 2010 | Vizio L32 32 in. LCD HDTV

2 Answers

How can you tell if the bulb on a vizio gallevia 47 inch lcd hdtv needs to be replaced? could there be a less expensive reason why the power comes on but the screen does not come on and how would test for...


LCD TV's don't have a bulb. They have backlights (usually compact fluorescent tubes) and a panel of LCD pixels. So you can have one of three things fail: the video board, the inverter that drives the backlights or the backlights themselves. If the problem happened suddenly the inverter is more likely to have failed. As the backlights fail, the screen slowly dims or the image will become pink/red. Look closely at the screen, if you see a dim image then the backlight has probably failed (block the room light but try looking with a flashlight from a few inches away from the screen). If you see nothing, the inverter or the video board are more likely suspect.

For an out-of-warranty TV, open up the back of the TV and remove the shielding. Look for any scorch marks or bulging or damaged capacitors. (Sometimes other parts will fail on this part but these can be spotted easily. Capacitors look like cylinders on a tripod.) The scorch mark and smoke may indicate a resistor or zener diode that had been used as a fuse and is now gone.

If you borrow (or have a) high-end multimeter (able to measure high frequencies - 50 kHz) or an oscilloscope, hold the multimeter probes a fraction of an inch apart about an inch above the inverter board and power up the TV. If you see a 1 or an actual value, you have a good inverter. If you see a reading near 0, the board is bad or the multimeter can't resolve the frequency.

In either case, you can buy a replacement inverter for $50-150 and just do a simple swap. Disconnect all of the wires (connections are similar to molex and ribbon cables in a computer) and remove board (a few screws usually). Connect the cables to the new inverter. (If you google backlight inverter replacement, you'll find videos and text descriptions.) Note the part number on the board, including the Rev number, and order the exact one (shopjimmy.com or lcdparts.net are good starting points). Universal inverters do exist but can result in reversed controls (up to lower the brightness). Replacing individual parts on the board is cheaper but more prone to not tracking down all of the bad parts.

If the inverter is good, then it's probably backlights themselves (several in most TVs). These are sandwiched on the perimeter of the TV (usually under some tape that holds the lamp, reflector and other parts together. You need to order by length and width and get ones for your TV size. Separate the panel from the bezel. Remove the tape, and separate the reflector (make a note of how things are put together) then you have to Dremel (or use another rotary tool) to remove the plastic to get the backlight out. (They are often molded into the frame.) Then put in the new backlight and reassemble everything. (http://www.lcdparts.net/howto/default.aspx) but for an overview: http://www.inventgeek.com/Projects/BacklightFix/overview.aspx Then push the new backlights into place, reconnect the wires and close up the sandwich of tape and other parts around the screen. Then replace it in the bezel.

With a good spare backlight, you can test an inverter for condition (plug together and turn on the tv while the box is open). Similarly a good inverter can test the backlight.

I hope this helps.

Cindy Wells

Sep 22, 2010 | Vizio GV47LF Television

2 Answers

TV picture not available.


Hello,

IF YOU HAVE A SOLID BLACK LINE RUNNING VERTICALLY THEN YOU HAVE A FAULTY MATRIX INVERTER. IF CENTRAL THE MAIN VERTICAL INVERTER NEEDS CHANGED. LEFT = LEFT VERTICAL INVERTER RIGHT=RIGHT.........

ANOTHER WAY TO GET THIS FAULT IS WORN OR DAMAGED RIBBON/PLASTIC GOING FROM THE SCREEN MATRIX TO THE INVERTER

Hope this help....

Jun 21, 2010 | Vizio L37 Television

1 Answer

How difficult is it to replace backlight inverter on a LCD TV?


Replacing LCD inverter board is very easy.Does not involved in any soldering.It a long board in shape.Just take ur tv aparts,use a Philip screw driver take out 6 Philip screws each board and connections.Do the reverse to install the LCD inverter boards.Tries Websites like Shopjimmy.com,Ebay.com to buy refurbish LCD inverter boards.

May 01, 2010 | Vizio GV42L 42 in. LCD Television

1 Answer

Vizio VX32L HDTV10A


I had the same problem with my 32" Vizio lcd tv, I took it to a repair shop and they said it might be the motherboard but they didn't seem too sure about. I am considering ordering the motherboard and trying to fix it myself hope this helps.

Nov 29, 2009 | Vizio VW32L 32 in. LCD HDTV

8 Answers

CRACKED LCD PANEL Vizio GV42L 42 in. LCD


Try to find new screen on amazon here Amazon com vizio 42 screen replacement. Hope this was helpful. cheers

Jan 24, 2009 | Vizio GV42L 42 in. LCD Television

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