What's that? Is it possible to repair it?
I remember my dad was using it as TV when I was child, that's why it died soon x)
I know someone here that sell A520 for $40, don't know if it's worth or not.
well its a common cause of failure. There is this excellent site:
http://www.jammarcade.net/commodore-1084s-p1-repair-part-ii/but dont try it, high voltage, leave it to professional, blabla.
Is there a high pitched noise?
The hardest part is finding replacement. Original is quite pricey. I found cheap Chinese copy, locally, think it was less than 10eur.