Tajima Tmex Neo Plus is not turning on HELP!

I'm very new to embroidery; I bought a second hand Tajima Tmex C 1501, and I got it to successfully work a few times, (Not really successfully since I was having a lot of threads breakages), but today I moved both the Main Shaft handle and the Color change handle, without really knowing what I was doing. BAD IDEA! Now I turn on the machine, the system loads to 100% then it says "Please wait" for a few seconds and then it turns off! the screen goes BLACK!!!! only the power button by the screen stays red. I tried resetting the machine using the original setup disk, and I was able to reinstall the software, but it keeps turning off again and again. I set the shaft handle back to the 100 red zone, but I'm not really sure how to get the change color handle to the original position. Please Help! Thank you.