Vizio Problem M3D650SV

[Zalto]

A friend gave me this TV. They reimbursed him for it under extended warranty and told him to dispose of it.

It works fine except....... I only get the right half of the screen. Sometimes a quarter of the left side will play. All input modes seem to work. Removed and re-seated the ribbon cables on the t-con and inverter boards with no change. It did something funny last night. I was playing a DVD through it and the left side was still out, but then it started like "advertising" banners on the left side sorta like it was on display and telling all the features the set has.

I have did the restore defaults from the menu and all I get now is half screen. Nothing on the left. flexing the screen does not seem to bother it. I am thinking the T-Con board is bad.

Any suggestions for a newbie to LCD/LED TV??

Thanks and great forum,
Dusty

[capkid]

Re: Vizio Problem M3D650SV

I'm not sure if you've solved your issue. If not, can you post a pic of the screen with the TV turned on?

[Zalto]

Re: Vizio Problem M3D650SV

Tried new T-Con board. Same picture. Any ideas appreciated.

Thanks,
Dusty

[tom66]

Re: Vizio Problem M3D650SV

Probably a defective panel if the t-con didn't fix it.

[Zalto]

Re: Vizio Problem M3D650SV

Any possibility that the LED DRIVER BD could be bad? The entire screen seems to light up when I turn it on. Just only shows the right half of the input signal though. I have a DMM if there any voltage/continuity checks that might be helpful.

Thanks,
Dusty

[tom66]

Re: Vizio Problem M3D650SV

It wouldn't be such a sharp cut off if it were an LED strip problem, and you'd have no backlight on that side. LCD panel failure is becoming a very frequent occurrence nowadays, and it's very expensive to repair (whole panel swap), kinda makes me think it's deliberate.

[Zalto]

Re: Vizio Problem M3D650SV

Just got this on the screen. Don't know if it helps or not.

Thanks,
Dusty

[tom66]

Re: Vizio Problem M3D650SV

I'd have a play with the tab bonds, but wouldn't expect any kind of permanent fix.
http://www.youtube.com/watch?v=purk_SyiT44

[Zalto]

Re: Vizio Problem M3D650SV

Checked the tabs and could not even get a flicker pressing on them. Unhooked the right side T-Con cables and it came on with a white screen all the way across. Does this info help?

Thanks,
Dusty

[Zalto]

Re: Vizio Problem M3D650SV

Another photo.

Thanks,
Dusty

[Zalto]

Re: Vizio Problem M3D650SV

Another photo of the other side left loose. Hopefully this will help somebody.

Thanks,
Dusty

[Zalto]

Re: Vizio Problem M3D650SV

Update. Finally got the TV back in "retail" mode after a system reset. The built in advertisements seem to have no trouble displaying on the left side of the screen. I also have an HDMI signal going in. Could the panel still be bad even though the panel will display the ads? I am starting to think the main board has something wrong with it ?

Thanks,
Dusty

[Zalto]

Re: Vizio Problem M3D650SV

Another pic.

Dusty

[kerbsjacob]

Re: Vizio Problem M3D650SV

If there is a constant picture on whole screen with advertisements on, it cannot be a panel defect. You would be wise to try a main board. However if it only intermittently shows on the whole screen, it could be a bad panel. I have seen panels that have defects on the power traces on the glass itself that are intermittent failures and almost impossible to replicate. Twisting, pressing on tabs. Nothing seems to help in that case.

[aaronwt6]

Re: Vizio Problem M3D650SV

I'm going with main board simply because its a Vizio and when you are getting a picture on the whole screen it looks good. I haven't seen one with this particular problem but nearly every Vizio I've had my hands on has needed a new control board.

[vizionoob]

Re: Vizio Problem M3D650SV

I believe I am having a similar problem with my TV, though, my whole screen is messed up. Did a new board fix your TV? I think I have to play with repeating the cables on mine, but It could be a board problem on mine. Check out my thread if you can put in some insight.

[michaelgrepp]

Re: Vizio Problem M3D650SV

New member here,

I have a vizio m3d650sv with 3 1/2 -1 inch thick vertical lines on the left panel that are both black and colored. The panel also will leave behind traces of the original image with it taking some time for the original image to bleed away, even when turning to a black screen.

Think of it as a type of ghosting that is very slow, it doesn't seem to affect the left part of the panel.

However I noticed when unplugging the HDMI cable while a movie was playing, the blurred images remain even on a blank screen.

The vertical lines also cut off part of the channel and input info on the top right corner.

Is this a main board or TC board issue, or likely the panel is done.

Thanks,
-Michael