Hi. I am new in the forum. I would like to share a problem that I couldn't solve by myself. I have found a broken Adcom GFA 5300 amplifier. Both channels were blowing their fuse. I have replaced all discrete elements and the caps. They gave up blowing the fuses. However, They have large DC at their speaker outputs now. I wonder what I am doing wrong. I have found its service manual given in the attachment. However, the schematics is slightly different than the board on my hand. First of all version one (v1) schematics has an external transformer that I don't have inside the case. They obtained the extra voltages from the main power supply in my amplifier board. Transistors Q117 through Q122 and LM55 and their related connections presented in the schematics are missing from my board. Did somehow changed the design? The amplifier board has only two two-pin cables going to the front panel LEDs additional to +,- and ground power rails... What am I doing wrong? Any idea? Thanks in advance.. Regards..