Re: Vizio M420NV no backlight



Darn. Oh well, I did acquire the TV for free. I might get the repair kit.

I assume there's no way to bypass or manually try to turn the backlight on to make sure?...

Re: Vizio M420NV no backlight



Once again sorry for the delay.

BL_ON shows .03 volts while the tv is off, and goes to .12 when the tv is turned on....

Re: Vizio M420NV no backlight

Sorry for the delay, here are a bunch of pics....

Hi guys,

Looking for some advice on a Vizio M420NV. The screen comes on and the tv functions fine, audio and video, but the backlight is completely out. I was only able to tell the picture was still there by holding up a flashlight to it.

There is never any flicker at all from the LEDs, they completely do not come on. I'm a novice on hardware stuff so any advice on what to test is appreciated. I looked for a BL_ON pin but I cannot find one labeled that, and don't know what it would look like.

Thanks in advance!

Re: New Members - please post your introductions here

Hi, call me Jman100. Looking for help with a vizio tv!