Question about Philips 42PF9731D37 42 in. HD-Ready LCD Television

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I have a new Vizio LCD tv with picture and no sound. I have checked all the obvious stuff. Any solutions before i just bring it back?

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Try connecting your audio cables and if not ur HDMI cable is gone bad. try buting a good quality one.

Posted on Mar 25, 2009

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I replaced the T-con board on my Vizio TV, but I still don't have any picture, just sound. What else could it be?


Think something may have gotten unhooked when you put everything bacK together? Check out all connections and ribbons between boards for proper contact.

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1 Answer

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Many Visio tv's have the same problem, and also reversed - picture and no sound. The quick fix is to disconnect the power cord at TV - then hold in the power button (usually found on left side 1/4 up from bottom of screen , located on the side/back of the set. a square button all alone) - hold power button in for 30 1,000 mississippi's, yes, that is what a Visio tech told me and it works. I was lucky enough to have the problem start before the 30 return policy ended at Walmart - decided I did not want a product that obviously has a chip failure coming soon! I exchanged for a Samsung and have not looked back!

Jul 19, 2014 | Vizio 42 in. LCD TV

1 Answer

Vizio m420nv has sound but no picture


Hello there

Actually that problem is very common on all LCD TV,, that problem is cause of either inverter board or t-con..

In this case you don't need to check the voltage that is too complicated for you,,only visual check is enough..

I share you my tricks and hope it helps..

Power on your TV turn off your lights..if you will see the light comes from the screen the problem is t-con..if no light the problem is inverter board (backlight) board

Hope it helps..

Don't forget to rate..

Aug 25, 2012 | Vizio m420nv 42 in. LCD HDTV

1 Answer

I have a 42" Vizio


Your power supply is dead.
Power supplies can be purchased online for a couple hundred bucks, and replacement is fairly simple and requires only a screwdriver.
For those less tech-savvy, you may want to start saving for a new TV.

Jun 07, 2011 | Vizio 42 in. LCD TV

1 Answer

Gunshot sound and no picture and no sound


hello, sounds like a capacitor blew inside possibly your power supply was fualty or the capacitor that blew overheated and cuase the sound its typical noice a capaciotr makes when it blows.. hope this helps

Jun 04, 2010 | Vizio GV47LF Television

1 Answer

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Ur tv LCD inverter board it dead.Replaced it u get ur picture back.

Dec 05, 2009 | Vizio VX37L Television

1 Answer

The LCD screen is dark with no sound or picture when turned on.


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.

Oct 17, 2009 | Vizio Gallevia GV42LF 42 in. LCD...

1 Answer

Vizio 47" lcd no picture no sound has power


this could be one of two problem. first, check if you have back light. If you do then the problem is with the M/B. Second, if you don't have back light then the inverter is bad and needs to be replace.

May 18, 2009 | Vizio VO47L 47 in. LCD TV

1 Answer

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Unfortunatley you can not get replacement parts for Vizio TV's. If purchased from Costco and you still have the receipt. then try and bring it back.

Jun 10, 2008 | Vizio L32 32 in. LCD HDTV

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