I posted a buy ad on craigslist for a BttF and it paid off! I finally have one.
The only issue with the machine is that the display doesn't work. The previous owner had it for 7 years and said the last time he played it was a year ago and the display worked then. He just had new carpet installed in the basement and the installers moved the machine. He thought maybe something shook loose. The seller only had this machine and didn't kn ow anything about fixing pinball machines. In fact he never had the back glass off.
I've checked the ribbon to the display as I have a Lethal Weapon 3 that uses the same one. That didn't make a difference. There was a blown fuse in F3 on the Power Supply Board. I'm still digging into the machine but was hoping someone had some advice.
Also if anyone has some great mods, please let me know. This machine is never leaving my house!