I plugged in my Power Station after not using it for a couple of years. At first there was no sound, then it started buzzing after a couple minutes. I turned off for a few minutes, at first no sound then after fiddling with the volume knob it came on and sounded fine. Then I turned off to switch speakers and when I turned on again no sound and buzzing returned. The volume of the buzzing does not change when the volume knob is turned.
First thing I would do is plug a guitar directly into the FX return and see what comes out of the speaker cab. The guitar sound may be a bit dull, but that’s OK. We’re just looking for signs of life.
Thanks for the welcome and for getting back to me.
I plugged into the FX return and got the same buzz with no output. However, I did get the buzz to come and go (but still no output) by fiddling with the speaker plug into the power station. So, the problem may be in or around the speaker out jack.
I turned it off immediately in case the PS is not seeing the resistance of the speaker and that causes more damage. Would a close up photo around the speaker out be helpful?