Is anyone using Yamaha MG10/2 mixer?
I need to figure out if I'm doing something wrong
or if it's just broken.

Whatever I connect to it all I'm getting is a very noisy output.
I tried both mic and line inputs connecting microphone and electric guitar
in all combinations,
with and without DI, I had to turn the gain and level knobs way to the right
from their normal operational range (according to marks on the panels)
[more gain, louder] to get any audible output signal.
I tried phone and line outputs with the same result
- noise or 60Hz hum or both plus a little bit of a signal.
Tried it with a DI, balanced XLR - unbearable.
Plain line-in - even worse.

All I have is a guitar, mic and a DI and I connect it
to my computer's soundcard and get a very clear sound,
but (what an idiot!) I wished for better setup when I don't have to dive
under the table to switch the wires back and forth and I got this mixer
and so far it's been such a frustration!

Somebody please tell me what the hell am I doing wrong?
Is it how it is supposed to be with analog mixers? Or is it just broken?

Sorry if I post to the wrong group and everything...

sergei