I just boughtt a 42 " vizio E420-AO.I took it home hooked it up.and it says no signal. what is wrong.
Unfortunately, Protron LCD's are very low quality, mine went out in 15months. Your problem may be similar to one I had & I fixed it by cycling the on/off switch next to where the power cord goes in the back of the TV. Also make sure the power cord is inserted right since the "yellow" light indicate powering up but not full power. Hope this fixes it since I couldn't find ANYONE that services/repairs PROTRON brand.
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