Originally Posted by kbtt:
Thanks for the replies! I now have a theory for what's happening.
I suspect you may be right. I'll have to try it with the one PS3 engine I have that is exhibiting the same symptoms (none of my other PS3 or PS2 engines have ever had that same problem). I also use a Z4000, and power the TIU through Aux. power with a Z500 or Z750 brick.