Black screen booting A3000T 030

[stopthegop]

Hello
Forgive me for mentioning what may seem obvious, but did you check the contrast on your monitor?  When I was a kid I used to turn the contrast all the way down on my dad's Apple II monitor as a prank..    Not sure if you have kids?  But its not impossible that the contrast "changed", one way or another, while you had your back turned.  Good luck, Dave

[mrtabaka]

Now I put my A3000T to other service. I found some burned tracks, so maybe they will fix it. Will see..I let You know;)