Re: Vizio E420VA 5v drops to 3v when power cable is connected

Went to try your insights, unfortunately one of the kids had stepped on the loose MLB in the garage and it's cracked :-(

Appreciate the tips.

Folks, I have a Vizio flat screen that doesn't show any signs of life (and no orange vizio glow either).

I tested the voltages from the power board (at the connector) and I can see the 5V supply drops to 3V after the power cable is connected to the main board (5V supply reads as 5V when cable is disconnected from main board). All other rails (12V and 24V) are reading fine.

I looked for the usual bloated caps and saw none on either board and no other tell-tall signs (black marks, burned components, etc) on either side of both boards.

Given the 5V rail...

Re: New Members - please post your introductions here

Hello folks.
A quick intro... as a teenager, building electronics kits was my main hobby.
Although I didn't know much about the inner workings of electronic components or even circuits but loved the magical results of a hand-built radio transmitter/receiver, a sound switch, international phone blocker, etc.
That curiosity led to getting my degree in electrical engineering, yet my interest with fixing broken electronics stuff continues.

Glad to see such a wealth of info on this site.
Happy...