I am an expat living in the Dominican Republic. I am currently having problems with a Peavey ISP 1600 DSP unit where one channel went out and was looking to see if anyone had the schematic for it .. The technicians here are clever but limited in their ability to repair items like this. I am a retired electrical engineer, but not a Class D power am designer, so I was looking for any help possible. The problem is one channel does not function . On that channel the Blue Signal LED is lit. This failure happened while everything was hooked up for several weeks. I have tested the speakers and speaker chords and they are fine. I saw and printed the Peavey ISP 3000 DSP someone posted on this forum, but was specifically looking for the 1600 if anyone has it.