High Def Forum
Thank you for visiting. This is our website archive. Please visit our main website by clicking the logo above.

Vizio 50" Plasma from 2007 Christmas

jerry43812
10-12-2010, 11:03 AM
You guys remember the 50" Vizio plasma that WalMart had for $100 back in '07 around Christmas-time? I bought one of those and now I have a problem.

My fiance was in the living room hanging up Halloween decorations, and she heard some funny noise coming from the TV. She figured it was jsut the satellite cutting out as it sometimes does sue to weather, so thought nothing of it. Ten minutes later she turns around and there's no picture on the TV at all. No menus can be seen, no picture from anything at all, only audio from the satellite channel she was watching. She turned off the TV, and I came out to look at it 10 minutes later, and cannot get any audio or video from the TV. You can tell the screen has some sort of activity because when you turn it on, it goes from the solid black, to just a shade lighter. I took off the back cover but couldn't find any bad caps or anything. Any ides what may have went bad? Lots of LG boards in there, so maybe Ican replace one and give that a shot?

PFC5
10-12-2010, 11:53 AM
I assume you already tried unplugging it for a couple of hours since you took the back off. Other than that I can't think of what it could be without completely guessing. At least you only paid $100.00 for it 3 years ago so you got your monies worth.

Did you happen to get an extended warranty with it? I imagine it would have only cost about $15.00 with the price at $100.00 so I hope you did that.

jerry43812
10-12-2010, 11:54 AM
Yeah, duh me, it was $1000, not a hundred bucks.

PFC5
10-12-2010, 11:55 AM
Oh. That sucks. I was wondering how I missed a deal like that as I always check BF deals.

jerry43812
10-12-2010, 11:57 AM
Yeah, so I have had it unplugged for about 4 days now... never bothered to plug it back in as I figured a board went bad. Worth it to try plugging it back in or not really?

jerry43812
10-12-2010, 12:04 PM
I just tried plugging it back in and no go: when I pressed the power button it kinda flashed a grey on a portion of the screen for a millisecond, you can hear the speakers getting power and that's it. No display.

PFC5
10-12-2010, 12:31 PM
When you checked the capacitors did you look at the normally completely flat tops of them? If they are not completely flat and are swelled that is the likely problem.

jerry43812
10-12-2010, 01:43 PM
It's a bit hard to read the tops of them in regards to swelling due to them having the x indentation in them. If I had to judge I would say they look okay though. I can upload large pics for you to see when I get home. I'm on my phone now.

PFC5
10-12-2010, 03:46 PM
Pics would help and make sure it is as close to a side view of the caps as possible.

jerry43812
10-12-2010, 04:26 PM
Ok I will get them and upload them when I return home. Not sure how well I can get hem from side view since the boards are in awkward spots but I'll try.

flyfish99
10-12-2010, 10:30 PM
IIIRC, those plasmas with all the LG parts were largely responsible for a lot of negativity toward Vizio that still persists, to an extent today. Not surprisingly, LG had high failure rates with their plasmas as well. Unless you get real lucky locating a faulty board, I think you're looking at a replacement TV.

jerry43812
10-18-2010, 04:55 PM
Here are the photos. They're 3000x4000 so they're very large, approx 5MB each. I left them this large so you can see the details.

One question, though, is what is the switch for on the AV input board? It's a push button switch, located on the left-hand side of the board. Pic #571 is the switch, and Pics #564 and #569 show the switch's location, which is on the left hand side of the board, in the middle of it vertically.

It's 6:54 here now, please allow another 15 minutes for them to finish uploading before trying to view. The first ones in the list will be available first, then the following ones. My net is slow :)

http://www.blackops2010.com/tv/DSCN0560.JPG
http://www.blackops2010.com/tv/DSCN0561.JPG
http://www.blackops2010.com/tv/DSCN0562.JPG
http://www.blackops2010.com/tv/DSCN0563.JPG
http://www.blackops2010.com/tv/DSCN0564.JPG
http://www.blackops2010.com/tv/DSCN0565.JPG
http://www.blackops2010.com/tv/DSCN0566.JPG
http://www.blackops2010.com/tv/DSCN0567.JPG
http://www.blackops2010.com/tv/DSCN0568.JPG
http://www.blackops2010.com/tv/DSCN0569.JPG
http://www.blackops2010.com/tv/DSCN0570.JPG
http://www.blackops2010.com/tv/DSCN0571.JPG

PFC5
10-18-2010, 06:06 PM
Links don't work. Look s like you need to be logged in to see them.

jerry43812
10-18-2010, 06:11 PM
Sorry, I had the 'jpg' lowercase and my camera writes them as uppercase. Please try now.

PFC5
10-18-2010, 10:36 PM
All but the first one work now. From what I could see the caps look ok.

jerry43812
10-18-2010, 10:39 PM
So then what do you think I should try to do? I get no video and no audio from any source, and I can't even see when I try turning the volume up or down ot when I try to access the menus, etc.

Any idea what that button does that I mentioned?

PFC5
10-18-2010, 10:40 PM
It sounds like the power board to me but that is only a guess.

jerry43812
10-18-2010, 11:03 PM
I'm getting like a buzzing noise out of it when I turn it on. Not sure if it's the typical Plasma TV buzz or not, I am very close to it and the back's off now. One of the boards has 4 LED's labeled 0-3 from top to bottom. 0 and 2 are solidly lit when I turn the TV on.

jerry43812
10-18-2010, 11:48 PM
When I power the TV off, then turned it back on, LEDs 1 and 2 were lit.

Can someone get a service manual for me possibly? I really don't want to throw it away when I can fix it and sell it.