Originally Posted by gibs
If I had some time, I would put the oscilloscope at each Resistor/Capacitor mentioned by Jens to see what the signal looks like on working board and compare with a non-working one.
That may help, but it would be alot of trial an error and that would have to be done on a mass of boards with same rev and the same on other revs.
You would need to get signals with it working, then remove your blizzard then alter components to hopefully match the signals when it works with blizzard.
I suppose you could swap some of the components for variable resistors / caps, to help find the perfect value. Again trial and error.
As I said though, a very time intensive process.