Certainly no need to apologize.
The latter question I didn't answer because I guess I thought it was obvious that I'd make sure the effects know wasn't all the way to dry.
I know what you mean. I certainly didn't mean to come across as questioning your abilities.
Hopefully you would agree that no one the forum can know for sure WHAT you did unless you actually tell us.
Troubleshooting is hard enough when you do knows the facts. The last thing I want to do is 'assume' you did something and then find out later you didn't.
For me it's true, and I think it is for others, our questions are ONLY meant to confirm what steps you have, or have not, taken so we can cross those things off the list of possibilities. They don't imply or suggest that you havent' done or haven't considered them.
My approach is to:
1. make a list of ALL possibilities - even ones that seem improbable or impossible
2. prioritize/order the list as to which things to check first and what to check last.
That order usually takes into account how easy it is to check something - those
go first on the list because it takes little time to rule them out.
3. examine each item on the list to see if it is the culprit.
4. when I rule an item out I move it to the bottom of the list with a big X and note
WHY I ruled it out.
When I ask about the BLEND knob it was only to confirm if you had checked that. One replier mentioned it as a possibility but I noted you didn't confirm if you had checked that or not. Since it was simple to just ask you rather than make an assumption I ask you.
Simple as that. The fact is, though I still find it ackward asking a kind of 'Doh' question because it can come across as a put-down rather than the sincere question intended.
It has worked this way for years, and now it just faded out and now silence.
The Yamaha turns on fine, all dial and motors turn as they should, and the display is also fine.
Those two statements, by themselves, suggest that something is actually broken as opposed to being configured wrong.
So if 'knob twiddling' doesn't help you probably need to get an expert to look at it.
I apologize if my questions/comments came across as demeaning.
DG amps look and sound great. 
My Guitars: 
