M-Audio Studiopro 3 Relatively inexpensive powered speaker set.
Produces 60 HZ hum. Thought it was only when turned on regardless of volume, but it can be heard through headphone jack and when you put the speaker next to your ear as soon as you plug it in. There is one large cap which I replaced. Checked solder joints on bottom of PCB. Re-soldered a few (which actually looked OK).
Hum still there.
https://usermanual.wiki/M-Audio/MAud...433470494/html
Any ideas?
Thanks,
John
Produces 60 HZ hum. Thought it was only when turned on regardless of volume, but it can be heard through headphone jack and when you put the speaker next to your ear as soon as you plug it in. There is one large cap which I replaced. Checked solder joints on bottom of PCB. Re-soldered a few (which actually looked OK).
Hum still there.
https://usermanual.wiki/M-Audio/MAud...433470494/html
Any ideas?
Thanks,
John
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