iMac won't turn on
Hello.
I inherited an iMac (27-in mid-2011) this year. The previous owner had removed all their files and reinstalled all the latest iOS etc.
We were able to get it started after I picked it up over a month ago. I had left it on and plugged in for a couple of weeks and then last weekend I realized it had gone 100% dark. It has been like that ever since. Have tried different outlets. Tried plugging and unplugging back of machine. Tried removing accessories (just keyboard). I replaced the old power cord with brand new one, but still no life.
I'm a newbie in DIY repairs but I guess I'd like opinions on whether to return to Apple Store for scrap, or if it is worth troubleshooting via some IFIXIT solution (and if so what would you try first?). Thanks for any input!
Is this a good question?