Roland KC-150 Schematic needed.
2010-12-31 by narfman96
I have a dead KC-150 all apart. All the onboard fuses look good but no sound. The power LED has 7 volts across it but it's out. There is a trace near IC4 (NJM4556AL) that has been overheated melted the conformal coating and lifted. It still is shiny and has continuity so it wasn't hit too hard. I'm going to jumper it anyway so it doesn't short anything. The hybrid LM3886TF output power chip doesn't appear to be heat damaged. I need a road map to continue. Next I will try to find some datasheets for all the sips. Thanks, Fran