Re: Vizio TV VF550XVT1A No blacklight. Has sound and passes flashlight test.



Hey, you should return the power supply, if you can, and replace the two inverter boards. I went through a similar process thinking it was the main board. VizParts was great and let me return main board without the restocking fee. I purchased a set of inverter boards off shopjimmy (found a good deal). (linked below) The TV has been working great ever since! It's been 2 years since the "repair". Make sure to check the similar part numbers for a better deal. Good luck!
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Re: Vizio TV VF550XVT1A No blacklight. Has sound and passes flashlight test.

Added pictures of the control board, and the 2 inverter boards. I have a soldering tools, a DMM, and a few years of electrical experience working in assembly as a tech. Just need an idea of where to start. Any advice at all would be appreciated guys. ...

Re: Vizio TV VF550XVT1A No blacklight. Has sound and passes flashlight test.

Bump

Long story short. Purchased a Chromecast, and forgot to turn the TV off before heading to the grocery store. Came home to a black screen. When plugged in the TV has the amber Vizio logo, and it turns white when the power button is pressed. I also hear a relay click on the power board. Initially thought that the Chromecast caused a short in the main board so I swapped out the main board, but it did not fix the problem.

Found out about flashlight test after all this, and it passed with both main boards. (I can see a picture if I shine the light into the screen.) Also, I have sound....

Re: New Members - please post your introductions here

Hello. Just another newbie trying to fix my TV and save some money. Found you guys from a google search and looks like a great community! Cheers~!