Bobbin Won't Wind on Janome 7500?

I have a Memory Craft 7500 by Janome. It is very dependable, no any problems in the past, until last night. I plugged the machine up and placed it in a sewing cabinet. I was winding the bobbin on top. It made about 5 turns, and only wound about 3 ft of thread. I readjusted the bobbin and thread once more and tried again. The bobbin wouldn't turn. I was using the foot pedal, but when I stepped on it, nothing.

I tried several different things in hopes of getting my machine to work, again nothing. I opened the foot pedal and looked to see if anything was loose. Everything looked OK, no broken wires or connections. The computer display on my machine never blacked out and seemed to be in working order.

I took the machine in to be serviced and the tech called and said he couldn't get the foot control to work either and he was having the same issue as me. He thinks it's the computer display even though it lights up. He could replace it, but considering age of my machine, he may have trouble locating one. Or it could be the motor burnt out, which to replace would be over $200 or more. I felt like the issue was with the foot pedal, but I'm not a certified tech, only self taught and I know my sewing machines pretty well. I love my machine, but I don't want to spend money on needless repairs only to have to turn around and buy a new machine anyway. I can purchase a new one for about $700 with the features I want. What do you think the problem is? Thank you.

By Cherryl