Vaio FZ LCD Buzz

I've done a search and couldn't find anything relevant.

My FZ of 28 months old has suddenly started making a faint buzzing noise from the screen. At first I thought it was the fan, but I realized it's the LCD. I can't change the brightness for some reason using Windows 7 but it's on Max Bright. I've seen some threads of people having this problem on lowered brightness levels but this is happening on full. When I shut the lid, the buzzing stops. It can be heard if I stand behind the laptop or place my ear beside either rear corner of the laptop.

Is this an inverter problem or just a matter of a loose connection? The laptop is otherwise perfect and also just had a new motherboard put in due to the Nvidia defect, and it's well out of warranty so going to Sony is not an option.

Thanks.

 

You guys didn't help me. So I ended up accidentally destroying my entire inverter. Thanks, buddy.

 

You've only got yourself to blame if you don't know what you're doing.

 

So it's OUR fault?? With that atttitude, good luck getting any other questions answered here.

Gary

 

Eh, buzzing is a sign of the inverter failing. Had to replace it anyway.

 

I was just joking you guys. I knew what I was doing but I was drunk at the time lol. Oops.

Yeah that's the way I looked at it. I managed to find a very cheap replacement part on eBay and the inverter just unplugs right out without any tools, so hopefully it'll be fine.

I actually tried to repair the inverter myself... I managed to get the screen to work for a few seconds (no buzz) then it died again.

 

Update - the new inverter works fine but when I dim the screen it starts buzzing and the screen starts flickering. Any thoughts?

 

light tube going bad.