Question about Vizio GV42L 42 in. LCD Television

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Tv won't turn on

I was being curious.  I put a cable into the service port in back of the tv.  the cord was not plugged in to anything.  As soon as i stuck it inot the vizio the set turned off and won't turn on again.  I can't get the logo on the front to illuminate.  I'm waiting a call back from tech support but it sounds like i'll be waiting for a while.  Any suggestions?

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Re: tv won't turn on

I had the exact same problem..Customer dis-service won't help...Was told by Level II consumer the motherboard could be replaced for around $200 for part + $100 labor? Will never buy a lame product that self destructs by placing a cable in the wrong port...

Posted on Jun 27, 2010

Re: tv won't turn on - Vizio GV42L 42 in. LCD Television Flat Panel Televisions

Curiosity killed the cat

Posted on Mar 09, 2008

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My LG 50pn4500 tv

Sounds like The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts.
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

Jul 22, 2016 | LG 50" 4500 Series Plasma HDTV - 50PN4500


How to Fix a Polaroid LCD TV Screen

<p>A Polaroid LCD TV delivers its picture via DVD player or cable connection to your home or office. After setting up your device and using it, you might experience technical difficulties with power loss and picture quality. Navigating through a few steps of self-maintenance will have your Polaroid TV running smoothly again in little time. You can examine your TV's power cord for damage, rewire a DVD player connection, and adjust your Polaroid's backlight.<br /> Difficulty:Moderate <span>Instructions</span> <ol> <li> <ul> <li> <span></span> Turn your Polaroid around so that the back is facing you, as a first step in correcting a power loss issue. Examine the length of the power cord from the back panel of the Polaroid to the wall outlet for damage, such as tears or rips. Replace the cord, if you see damage. Unplug the TV from the wall outlet and inspect the metal receptors (prongs) for dirt. If the prongs are dirty, clean them with a dry cleaning cloth. Plug a separate electrical device into the outlet and turn it on to confirm that the outlet is performing correctly. Plug the Polaroid TV back into the outlet, and try again.<br /> </li> <li> <span></span> Twist the Polaroid TV's back panel towards you so that the connected cables and jacks are easily accessible to you. If you're experiencing problems getting a picture from your DVD player, inspect the connection of the audio/video cables to your "Composite In" jacks. There are three cables in a standard audio/video setup: a yellow cable, a red cable, and a white cable. Unplug all three cables from their jacks to reset the connection. Insert the yellow-tipped cable into the "Video" port, which is yellow-colored to make matching the cables easier. Insert the white-tipped cable into the "L" (left audio) port and the red-tipped cable into the "r" (right audio) port. Perform the same steps on the audio/video cable out ports of the DVD player, and try again.<br /> </li> <li> <span></span> Raise the TV's backlight level, if you're having trouble seeing the picture. Push the "Menu" button (located on your remote control), and the TV setup menu will appear. Use the navigation buttons located on your remote control to scroll to "Image," and push "Ok" -- located within the navigational buttons on your remote control. A list of options will be displayed, such as "Contrast," "Hue," and "Saturation." Choose "Brightness" from the options. Use the four-way navigation buttons to raise the brightness (make your screen brighter and more illuminated) or lower the brightness (make your screen darker).<br /> </li></ul> </li></ol>

on Dec 27, 2010 | Flat Panel Televisions

2 Answers

My set is plugged into a cable box. the tv will not turn on either manually or with the remote.

Plug the power cord directly into a wall power outlet, and make sure that the standby light is lit (turn it on/off manually to see if anything changes). If there isn't any light, then it's most likely broken.
If the TV works again, being plugged into the power outlet in the wall, then the problem is with the cable box (i bet you figured that out too).

Jul 06, 2014 | Envision L32W761 32 in. LCD TV

1 Answer

Out of no where my Vizio won't show cable, Blue Ray, or shows on Roku. One of the HDMI ports hasn't worked well for awhile so would have to switch HDMI ports to watch Roku or Blue Ray, but overall worked...

you may need to change the HDMI board in the tv. it will be the hole board the parts are just to small to replace them all to get the HDMI board working again. find a second hand replacement. should be fine with another known working one.

Sep 21, 2013 | Vizio Flat Panel Televisions

2 Answers

No sound, no picture

Hello sorry to hear that. From your description it sounds like your signal board may have been damaged by you plugging in your laptop to it. The signal board is the one with the tuner on it.

Feb 22, 2012 | Vizio P50HDTV20A 50 in. Plasma HDTV

1 Answer

My panasonic th-50px60u television turned itself off last night and won't turn on makes clicking noise when unplugged and plugged back in but then nothing red light flashes

Tries tv unplug,replug it back like about an hour later for the tv to do it resetting itself back to the factory setting,tv might work again.If not still same problems.The tv 90-95% it is the board that call the tv power supply board is having a problems.That the board where the tv power a/c cord plug into it.U have all tools and know basic electronic and also can do basic soldering works too?Yes,take the tv aparts,check the tv power supply board carefully for dying and soon to be dead capacitors components parts.These capacitors components parts are alway bulges up or puffing up onto it tops.These dying and soon to be dead capacitors components parts are bulges or puffing ups on to it tops must have to be replaced will solved ur tv power unstable and flashing red light.Or try website like to buy a whole new refurbish tv power supply board for the replacement.

Jul 29, 2011 | Panasonic TH-50PX60U 50 in. Plasma HDTV

1 Answer

My vizio e420vl turned itself off and won't turn back on. When i plug it in the vizio logo lights up amber but it won't do anything else.

There are at least two power supplies in any set with remote capabilities; one is on any time the set is plugged into AC and is supplying that indicator and the receiving circuit of the remote, otherwise it wouldn't turn on under normal conditions. The second power supply produces the needed service voltages used when the set is in use. This second supply is a common failure in many sets and it is generally traceable to poor design and the use of low-quality components of a certain type. Vizio may have a repair or exchange program through their service center. I would guess the cost will be between $50-$150 and you might remove the back panel of the set and look for a smaller board with larger-than-average parts on it and is related to the AC cord coming in. It should be fairly easy to remove and replace as these are often outsourced and just plugged into the rest of the set with dissimilar plugs making it simple to install and reinstall.

May 29, 2011 | Vizio E420VL 42 in. HD-Ready LCD TV

1 Answer

I have a Plasma Monitor Model PX-42VP3A that I won in a raffle. It didn't come with any cables or anything. What do I need to purchase so that I can connect it to my cable box? I had cable come to my...


These televisions do not come with any cables. It is just the power cord that comes with it, and it is the power cord that You connect to the power outlet and power port on the television. The cables You are to buy to connect the television to Your cable is:
  1. RGB adapter cable( that is if Your cable has the RGB port at the back of it that accepts the RGB cable).
  2. White, Yellow and Red jack cables(a 3 in 1 cable), these cable connects the audio and video of the cable to the television from the port that You connect the cables into. Sometimes, these ports are covered in with a plastic casing to protect the port from dust.
  3. You get a power cord that is used to supply power to the television if Your television did not come with one,
  4. HDMI cables also can be used to connect the television to the cable if the cable has the type of port that supports it.
Hope this helped. Thank You for using FixYa!!!

Jan 19, 2011 | Flat Panel Televisions

1 Answer

I can't set it up!

The Wii will work on the TV. Just try plugging into the ports labeled AV1 or AV2. The red, yellow, and white holes should line in a row with AV1 and AV2. After you have them plugged in, press the INPUT button on the TV or the remote to get to the AV1 or AV2. It should work after that. :)

Jul 08, 2009 | Toshiba 37AV502U 37 in. LCD HDTV

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