Re: Vizio E422VL-completely dead

Hey CapLeaker,

That's a good way to put it, its "stuck on" but will not power up. I agree with you, its the mainboard. I have shorted the PSon and backlight on with 1k resistors and the backlights came on. So, I figure that rules out the PS. I have tried unplugging everything except the PS and nothing changes. The fuses on the main board check out. The voltage regulators also check out. I am stump with this one.

Re: Vizio E422VL-completely dead

Hi Everyone,

Its been a while since I posted this. Has no one ever experienced this problem or know where to focus my testing?

Hi everyone,

Need some help troubleshooting this vizio. The set appears completely dead with no Logo light and does nothing when pushing the power button. I have done some tests. The power supply appears to be working correctly. By isolating the power supply, I get the 5v standby. Once I connect only the mainboard to the power supply, I get 12v along with the 5v. The weird thing is the mainboard sends 2.2v on the power on/off pin even before hitting the power. That is why I have 12v before powering up the set. I have checked the voltage regulators and they function correctly. I...

Re: New Members - please post your introductions here

Hi all,

I guess I would consider myself a hobbyist in this area. I wanted to learn electronics so I could repair electronically devices without disposing on them. Nothing rubs me the wrong way than dropping a lot of money on devices that break within 5 years. (I know, probably not realistic, but I have to have a goal) I joined this board so I could hopefully work with people who are knowledgeable to help when I get stuck.

Cheers!