Hello,
My A500+ has been packed in a box for the last two years or so. I pulled it out yesterday and today I tried to turn it on ... I heard a noise from the power supply (can't really explain the noise, but not a loud bang, more like sparkling water) and nothing happened. When I smell the power supply I smell something burnt, but not a big smell.
My question are; did I damage my A500+? and what are my options?
You're only option right now it to try another power supply! I think it's unlikely that it has harmed your A500.
If the new power supply fails then yes you have a broken A500 in need of repair (short circuit by the sound of it).