Nothing at the moment. Just picked it up off craiglist for $50. and wanted to find some schematics in case it dies. I replaced the RCA jacks that were broken, tore it apart and scraped all the dried up heatsink compound out of it, replaced a broken LED, re applied compound and cleaned it all up and and it runs great. MUCH more efficient then the alpine I have. with 2 channels running i got 81 watts at the onset of visable clipping with 30amps of current draw from the power supply. the alpine only did 51 wattsx2 channels for 30amps!
I need to find one of the screws for the remote turn on terminal or make one.