Hello Lakesailor,
This may be beating a dead horse, but I too would like a copy of the Proceed HPA schematic, if you're still around. I have an HPA3 that has two channels not working and it has been pretty much mothballed for a couple years now. Before sending it in to a service center (I've used Pyramid in the past) I would really like to take a look at it myself in case the problem is something simple. The prices I've seen for fixing these things service centers are a little scary. Any information I can glean before actually tearing into it would be helpful. Thanks
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