My 46" LCD VIZIO wouldn't turn on this morning. Thought it was remote since the amber VIZIO lettering was lit. Tried to turn on TV using the side panel on the TV button, and nothing happend. Since front vizio sign is lit, power is getting to it, but the TV will not turn on. Any advice or suggestions would help. I just got the TV in Dec.
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Check the remote control for its infrared emission. Check this link and select the site 'Electro-help' for details. Detailed description is there, about how to check and repair a remote control. Pull up older posts.
Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
There are at least two power supplies in any set with remote capabilities; one is on any time the set is plugged into AC and is supplying that indicator and the receiving circuit of the remote, otherwise it wouldn't turn on under normal conditions.
The second power supply produces the needed service voltages used when the set is in use.
This second supply is a common failure in many sets and it is generally traceable to poor design and the use of low-quality components of a certain type.
Vizio may have a repair or exchange program through their service center.
I would guess the cost will be between $50-$150 and you might remove the back panel of the set and look for a smaller board with larger-than-average parts on it and is related to the AC cord coming in.
It should be fairly easy to remove and replace as these are often outsourced and just plugged into the rest of the set with dissimilar plugs making it simple to install and reinstall.
Do you have back light when turning on the TV? if you do then just replace the main board should resolve the problem. if you do not have back light, you will need to replace the inverter board(s) depending on your model. The inverter board(s) is located on the left side of the TV facing back of TV. you may have two inverter boards depending on your model. the other is located on the right side of the TV. Both mount vertically.