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Wow this is pretty lame thread when I'm the only one posting... hahaha Anyhow I replaced the two other driver chips and I'm back in busness. Thanks Dave at hobby cnc your costomer service is great....

If anyone is bored and there following along with my stupidity I'll let you know whats going on. I replaced the regulators and now the 5v is back. I set to v ref as speck for 3a motors. The good news...

I am very much an amurtur at electronics, but I'm trying to figure this stuff out.

For an update. I took the hex inverters off U8 U9 and i still did not have 5v. It appears as regulator u5 gets...

Ok I had the board up and running great. Did all the tests had no problems. Except i was in a bit of a hurry and did not put the heat sink on the drivers chips. (Bad Idea) I'm using the 3a motors so...