Saturn killed

I have country moded a Version 2 Saturn with 50/60 Hz switch. Furthrtmore I am using a mod chip from lik sang.

I turned on the Saturn and the screen stayed black. I turned off the saturn and immediately on. The Saturn runs and I could select all three country codes and the modchip works too. Next day the same process, at first nothing but then. Today the Saturn doesn't run, dosen't matter how often I switch it on. Is there anyone who has the same problem or can help?
Thats not so easy, because I had to scratch one conducting path. Furthermore I had to remove three zero ohm resistors. But you are a right, i should give it a try.