Vizio SV370XVT lines throughout entire display. Not signal data. (pictures inside) - Page 2

If you get and install the board please report back with your results.

Hello,

I have a 3 1/2 year old VIZIO SV370XVT and have been having the same problem as the original poster (horizontal lines at top of screen and screen freezes below). The pattern was not exactly the same as the OP's pics but was similar. The problem started when the TV was off for a while and got progressively worse just as the OP described.

In my case the system reset worked (at least so far anyway, crossing fingers).

For whatever it's worth, here is exactly what I did:

1. I have my TV plugged into a power strip, so the first thing I did was to shut off the power with the TV turned on to simulate a power outage.

2. With the power shut off and using the power button on the TV (not the remote button), I held the button in for 30 seconds (or more).

3. Switching the power strip back on, I then pressed and held the power button on the TV for another 30 seconds to turn the TV back on.

Problem seems to be fixed for now.
I will post if the problem comes back.
Edited by Ken Carter - 2/11/13 at 9:55am

I am having the same problem with my visio 37" sv370xvt. When turned on after being off for several hours the screen has vertical lines but the sound works, then after about 20 minutes everything is fine. Did you ever find a solution?

I have the same problem. Nobody has really come up with a solution nor has Vizio ever given any solutions. I changed the main board like one of the earlier posters with no success and have done hard resets with no positive results. I'm still waiting for the perfect fix. If any of the previous posters fixed their problem with some other means it would be nice if they would share their information.

I have a Vizio VL370M that is having similar problems with horizontal lines throughout the top of the display just like image #2 from copotica. The picture also is extremely choppy as the screen freezes and updates about every four seconds. Unlike some others on this thread the issue doesn't go away after leaving the unit on.

My unit has two ribbons that come out of the t-con board. One goes to the top right side of the screen and the other goes to the top left side of the screen. If I unplug the ribbon coming out of the t-con board going to the right side, the right half of the screen will go white but the other half still has the horizontal lines and choppy picture. Same thing happens when I remove the left side ribbon coming out of the t-con board.

I did tear it apart enough to fiddle with the tab bonds while it was on and nothing improved the picture.

Of course when I remove the cable going into the t-con board then I am just getting a black screen with no lines.

So my question is has anyone replaced the t-con board as Halkenguard suggested might be the problem?

I have been having a very similar problem with my vizio VO370m I just ordered a new T-controler, I will let you guys know how it goes.

I replaced the T-con board and it has fixed the problem. Anyone having this line problem with their Vizio Replace your T-control board. That is definitely the problem. Make sure you buy a board that is compatible with your TV. I bought mine used on ebay for $15 dollars.

How long have you had it installed? Do you have the board number? I hope that did the trick.

Thanks for reporting in!

Its been in for a week. I have had no problems since the card was installed.
I have a different model Vizio then is titled in this forum. I have a VO370m but the symptoms were exactly the same. Lines across the screen and freezing(as pictured) depending on the heat and humidity , as well as time idle. The problem got worse with time(years) till Iit would take an average of 3-5 minutes for the TV to render an image, If it ever did, sometimes it would not work for days.
After installing the t-control board, MY TV started right up and immediately rendered an image.I got to seen a boot up screen I forgot even existed. I have not seen one line or had any delay since.
It is possible that the boards just go bad with time. I got a used one just to see if it would work.
I suspected it was the t-conrol board when i first opened it up since it is the gpu for the TV, responsible for rendering the image on the screen. It did not seem likely that it was the power supply since it always turns on reliably. I didn't think it was the motherboard or cpu( the Main Unit as you have called it on this forum) since all of TV functions and ports were working properly. So I was thinking it had to be the screen (not worth replacing $$) or the Graphic Processing Unit (T-control board) which is responsible for rendering the image on the screen.
To be clear this is the first TV i have ever worked on, but i am very familiar with computers and computer repair. What struck me when i first opened my TV was that it was just a very simple flatted out computer that was all screen and very little PC.
Anyway I found this forum and it did help me a lot in that it confirmed my suspicions since you guys had tried basically everything except replacing the T-control with no results. So if you have any questions or need any help installing it i would be glad to help.

This is the card I bought for my VO370m

http://compare.ebay.com/like/190752967611?var=lv&ltyp=AllFixedPriceItemTypes&var=sbar

This is the card you will need for the TV model Titled in this forum Vizio SV370XVT

http://www.tvpartsguy.com/servlet/the-8052/VIZIO-SV370XVT-T-dsh-CON-BOARD/Detail

http://www.ebay.com/itm/Vizio-sv370xvt-T-Con-Board-with-cables-6871L-1673A-/281093670065?pt=US_TV_Boards_Parts_Components&hash=item41727d04b1

http://www.ebay.com/itm/Vizio-47-SV472XVT-XVT472SV-6870C-0285C-1877D-T-Con-Board-Unit-Motherboard-/140947877017?pt=US_TV_Boards_Parts_Components&hash=item20d125ec99

New or used that's your Choice. I like to have a warranty either way, since we know these boards go bad. The longest i could find was 90 days tho so it might just be better to buy a used one every few years if it does go on you.

Thanks for your help everybody. It feels empowering to fix something new and not take part in our throw away culture!

Tedouesz thanks for the info. Mine drowned in sandy last year, so I ended up buying the same model vizio sv370xvt for $220 on craigslist. So far so good. The only thing the TV doesn't do Is the TV guide. I called Vizio and the rep told me it was discontinued. I can still see the info on the channel though. I do miss that TV guide though. copotica stop being cheap get that T board.