Vizeo VO420E Buzzing Loudly

[Ampkat]

Originally Posted by Zenith26kc20

Those sets suffer from backlight transformer failure. Also, not on the main power supply but on one (or two if the set has them) of the backlight modules, if they are separate, you will find bulged capacitors. Also, look under the backlight modules and you may see dark marks under one of the transormers. This means the transformer is failing. I have managed to get backlight modules fairly reasonable on our "favorite" auction sight. They are a common failure.
Is the picture bright, no flickering at all?

Thanks Jeffhs that helps and no bulging caps on this thing at all but that did help.

Zenith26kc20 I'm in Baton Rouge and noticed you are in N.O. so thats cool.

This isn't my set but I'm an old tube guitar tech working on a buds TV.
He said the set sometimes when turned on lights the LED on but nothing comes on. Other times it comes on and works for awhile but starts buzzing and then dims down and shuts off. Sounds like backlights to me but not sure. No burn marks on the transformers or discolorization except for the two backlight caps by the connectors which are two small blue ceramic looking caps.