Facing TV Problems? Ask a TV Technician.
Hello, My name is ***** ***** I'll be assisting you. I'm sorry you're having problems. In order to assist you, I need to ask for more info.
1) Are you saying that you replaced the Mainboard already?
2) If so, where did you purchase it from?
3) Have you tried more than one HDMI device and also more than one cable?
Please postback with details and we can proceed.
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Thank you. The Mainboard is indeed still the problem. Previously- it had simply locked up. These symptoms- directly point to the board failing. The Mainboard detects all of the HDMI Inputs on the set, and when they fail it means the board needs to be replaced. If you want to fix the set- you need to purchase and replace the Mainboard (which is the AC signal board). Was this something you're looking to do yourself?
That board is part number: Vizio 3632-0872-0395 and is generally found online in the $75-$100 range. The rear of the set must be removed to access and replace the board- but the board itself is "plug and play" (meaning no soldering is needed).
We see this issue dozens of times a week on your TV, and there are no permanent pushbutton fixes. The board is the processor in the TV and requires replacement to fix the issue.
Alternatively, a shop will charge close to $250 parts and labor for this job and can be located at the link below:
Other than that, I'm sorry for the bad news and wish there were a quick fix.
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