i love sharin foo wrote: ↑Fri Mar 08, 2024 3:08 pm
I’m glad it all worked out just as you had hoped. That is always a great feeling!
Thanks! Sadly, I may have spoken just a BIT prematurely. After getting it back, it's still exhibiting a mysterious buzz that I can't quite diagnose. It's going back to the shop today. They were really nice and apologetic, and hey, things happen. My only impatience is wanting to spend hours playing this thing.
Here's some issues, maybe someone can help focus in:
Sometimes as soon as I flip it on, sometimes after 5-20 min of playing, signal goes out and a big loud buzz happens. Sounds kind of like a thumb across an open guitar cable. Buzz is loud enough to be startling and vibrate the floor a bit at 3.
Buzz totally controlled by master volume knob, EQ knobs seem to do nothing, and Channel Volumes change the tonality of the buzz, but even zeroed out it doesn't go away or turn down. Deep/Bright switches don't do anything.
Happens even when nothing plugged into inputs. Tried roughly swapping between inputs and it didn't solve it. But ONE TIME, switching from Normal 1 to Normal 2 fixed it, but it didn't last.
Konking it moderately and jiggling knobs didn't resolve it.
Sometimes a 20-second power down reset fixes it, sometimes it doesn't.
I know that I don't know enough to properly diagnose whatever this is. But is FEELS like something is shorting/grounding early on, since the master controls it. I was hoping I could ID it as a bad switching jack, which it could be, but I'm not sure. I AM pretty confident however that my tech will likely catch it in a second pass.
I'm also glad I wasn't running this the way I usually would, with the Master wide open and using Channel Vol as the volume control. I'd have knocked the building down.
But when it sounds good (i.e. isn't making me jump out of my skin as it starts buzzing), it sounds GREAT.
So... BIG.