Vizio sv370xvt No picture but have sound

[slimskinny]

VIZIO SV370XVT - 37" Widescreen 1080p LCD HDTV

I have this television about 1+ years old, the screen glows black, as well as if you look through the vents there is a glow as well. Can change channels and hear sound, just no picture.

Should working electronics/boards look burnt/fried/black? I'm guessing no. It appears to be the power board (via google). Would that cause it?

The close up is on the board on the left



Yep

[tom66]

Re: Vizio sv370xvt No picture but have sound

That component is fine, probably got a little hot.

The middle board with the big heatsink on it would be a prime suspect in this case.

[slimskinny]

Re: Vizio sv370xvt No picture but have sound

What is that called then? The main board? Any recommended online parts dealers?

[tom66]

Re: Vizio sv370xvt No picture but have sound

It looks like the motion enhancer, does this TV have 120/240/480Hz function?

[budm]

Re: Vizio sv370xvt No picture but have sound

That looks like T-CON/motion enchancer/local LED dimming control board.

[haqattaq]

Re: Vizio sv370xvt No picture but have sound

I have the exact same issue but with a xvt47sv.


The screen 'glows' and the lights are on in the back.

When it's powered up, instead of getting the gray V (vizio) logo on the screen it just shows the 'glow' from the backlight. It's almost as if the backlight isn't turning off properly. The audio comes in fine and it can be powered off and on properly via the remote.

Whatever board that controls the image seems to be the issue. Any idea what board would be the culprit? It's a 240 hz led/lcd TV. Think its the t-con?

Thanks for any more help.

The boards look similar;

[tom66]

Re: Vizio sv370xvt No picture but have sound

It's best for you to put that in a separate thread because it's a different model...

[budm]

Re: Vizio sv370xvt No picture but have sound

By the way, there should be surface mounted fuse/s on that board (the board with two white ribbon cables that go the LCD panel).

[tom66]

Re: Vizio sv370xvt No picture but have sound

Also, I may be wrong, but that looks to use Full LED backlighting... In which case, when playing video, it should be possible to see the LED brightness vary across the panel, even without an image, UNLESS it is the T-con that drives it.

[budm]

Re: Vizio sv370xvt No picture but have sound

Yes, it does use LED backlights, you can also see that there are wires from the power supply to that T-CON.
There are more than one chassis for this model Vizio sv370xvt. I cannot find much info for this T-CON yet.

This is another chassis:
https://www.badcaps.net/forum/showth...xvt#post261857

[haqattaq]

Re: Vizio sv370xvt No picture but have sound

sorry for posting in the same thread, i thought because they were the same model but different screen sizes that the guts were the same. Can a moderator move it to a new thread or should I?