Question about Vizio VX32L Television

2 Answers

I get sound but no picture

The back light is not firing...do I need to buy the backlight inverter master and slave? or just the master? Thanks!

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  • Aaron Berger Jun 25, 2009

    So, I took it apart and there are 2 inverters - one on each side. Do I need to buy both? If so it'll be $160. I'm confused.

  • Aaron Berger Jul 24, 2010

    You guys are amazing! thanks!

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  • Master
  • 583 Answers

You just have to buy and replace the master not the slave.
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Posted on Jun 26, 2009

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  • Master
  • 1,734 Answers

This is a quite common problem with the VX32L. There are faulty parts, especially the relevant board.
If you or someone you know can replace a whole ciruit board, then it can be fixed.

On this site you can get the replacement board:
http://www.shopjimmy.com/catalogsearch/result/?q=vx32l+back+light

You'll just need to find the right one by looking at yours. Yourbacklight board will have letters & numbers on it for a boardmodel#. It should be easy to find one and replace it.

Otherwise ask a authorized service dealer to fix it (will cost you another 70-100 bucks).

Posted on Jun 25, 2009

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1 Answer

My tv is very dark and you can barely see the picture in the light


Likely need to replace the backlight inverter.
Some tvs have 1 on each side, some have just one.

would likely be the one marked A or Master. the B board or slave can also cause problems though, so If you would rather get both at the same time, would be a more surefire way to get if working without having to buy the other one after finding out you got the wrong one.

Make sure you buy based on the board # on the inverter though, if you search by model #, you can get the wrong part as there are more than one sub-models to most TVs

Jun 07, 2011 | Televison & Video

Tip

42PFL7422D/37 Flat Panel LCD TV no picture no sound


I HAVE A 42 INCH PHILIPS MODEL 42PFL7422D/37 TV.

MY PROBLEM IS THAT IT HAS NO PICTURE AND NO SOUND.
THERE IS A GLOWING BACKLIGHTING.

THERE IS A BLUE LIGHT WHEN I TURN POWER ON THE TV. NO CLICKING RELAY SOUND.

MY PROBLEM WAS IN THE SLAVE INVERTER BOARD.

THE IC CHIP WAS BLOWN - SEE PICTURE. THERE IS A BURNED, DARK BROWN MARK ON ONE OF THE CONTACT LEADS ON THE CHIP.

THERE ARE $20 FIX IT KITS THAT YOU CAN BUY ON EBAY TO REPLACE THIS TINY LITTLE CHIP BUT IT'S RECOMMENDED THAT YOU SOLDER VERY CAREFULLY. I TRIED, AND DAMAGED THE BOARD SO I BOUGHT A USED ONE.

REMOVING THE IC CHIP IS PROBABLY BEST DONE WITH A HOT AIR SOLDER GUN. THEY COST ABOUT 50-200 DOLLARS.

AFTER INSTALLATION IT FIRED RIGHT UP.

IN ADDITION TO THE JUST BUYING ANOTHER INVERTER BOARD, I ALSO TESTED THE MASTER INVERTER TRANSFORMERS. ON THE POWER SUPPLY BOARD, I TESTED THE DIODES, AND RESISTORS, AND CHECKED THE FUSE.

AFTER ALL OF THE ABOVE, I UPDATED THE FIRMWARE BY GOING TO THE PHILIPS WEBSITE.

LUCKY FOR MY SITUATION IT WAS NOT THE MASTER INVERTER, MAIN , TCON, POWERSUPPLY, OR DAMAGED BONDING ON THE LCD PANEL ITSELF.

TOTAL COST $50.

GOOD LUCK!!!

on Dec 23, 2011 | Philips Televison & Video

2 Answers

Philips 42PFL7422D/37 42-Inch 1080p LCD HDTV Picture went out but still have sound. Any tips on how to fix it?


If the backlight of the LCD-panel does not function, (no picture) then Master and/or Slave inverter are defective. Inverter boards are screwed to both sides of the LCD display, if they have revision 1.2 boards then they will need replaced with revision 1.3 boards.

Feb 16, 2011 | Philips 42PFL7422D 42 in. LCD TV

1 Answer

Power is on (Blue light) but the screen is black. Does not display picture.


There are two likely options: either one of the backlight inverters has burned or the power supply has a puffed cap and doesn't provide voltage for the inverters.

The simplest way to tell is to use a voltmeter and find if power provides 24V to inverters. It's easy to see where, there are at least 5 wires for ground and another 5 for the 24V line, so it's a no brainer to find them,

If there is 24V on the inverter then either the master or the slave is burned.

Chances are good you may be able to find which one by testing the fuses on them.

Finally, the master backlight board is 6632L-0346A and the slave is 6632L-0347A.

Hope this helps!

Bobby @ CoppellTVRepair

www.coppelltvrepair.com

May 12, 2010 | Polaroid FLM-4234BH 42 in. LCD HDTV

1 Answer

Bad backlight inverter on 42" RCA LCD


Does the backllght go out after a few seconds? Could still be a lamp or something else on the inverter boards. You could try used inverter boards from the same set with other problems (broken screen), Or a complete working backlight from another set but very delicate operation to swap the LCD display from one panel to another.

Apr 03, 2010 | Vizio VW32L 32 in. LCD HDTV

1 Answer

Picture come on for about 2-3 minute, then goes out has sound no picture, red light come on near power button


Ur LCD inverter backlight board is dead.Replaced this LCD inverter backlight board to get the picture back.Tries Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter backlight board for the replacement.

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1 Answer

Backlight Inverter Input Voltage


input voltage like 21.4dc is correct and not sure about master or slave inverter board. You have to check one by one. Here is part store offers cheap prices for boards, please ask required boards.

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Replacing backlight inverter board


Not always but usually the inverter board is part of the display panel, way to much money to bother fixin.

Jun 20, 2008 | Televison & Video

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