Hello my name is ***** ***** I will try to help you. Question do the lights flash constantly or do the eventually stop? Do you have control with any of the switches? What is the display showing?
Have you tried to reset the unit?
And is the display showing anything?
I have the reset procedure for the PC2 it should be the same.
To start, turn the unit off and back on See if the display will say "please wait" even for a short time. If it doesn't you will not be able to reset it.
OK the problem is in the computer. How log have you had the unit? Has it been moved around and maybe had an impact? Is there a chance something was spilled into it?
How old is the unit.
The problem is in the computer or as Kurzweil called it the "engine board" 4 years old it is not in warranty any longer so we can't go that way. It is possible moving it around could have had a connector has come disconnected but that is not likely the problem. I do not think there is much else you can do other that take it in for service. The unit is well worth having it repaired. If you would like to do that give me your Zip code and I can find you the local Kurzweil repair center.
I hope this has helped a little and if you have any additional problems, or would like any additional information or assistance, please do not hesitate to let me know. And if you can take a second to rate my service by clicking one of the stars at the top of the page, then submit, that would be greatly appreciated.