Any idea on how to identify the source of this noise?
It only occurs when the phase is on, no issues when it's off.
I replaced the switch, cleaned and resoldered the jacks and pot. Resoldered a few pieces on the board including the battery terminals.
Toggling the pot has no effect.
I bought an original MXR Phase 90 and used it for one gig with no problems and now this noise problem has surfaced.
http://i.imgur.com/lfdGmj6l.jpg
http://i.imgur.com/av5J6pQl.jpg
http://i.imgur.com/gYwsZlvl.jpg
Excessive Noise Phase 90 (video demo)
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