3rd guy here, I have the revision B of the amplifier board, a bit different than revision A that you pictured(no resistors near the fuse/transistor). I followed the same instructions and the T3 is back singing again, I can't thank you enough since I already took it to a local electronic shop that specializes in audio and the repairman was unable to fix it for me, and pointed out another electronic shop to me that had expensive rates and dealt with micro electronics (like burnt smd's and such). turns out the problem is simple. There is no change in the sound at all after that fix. thanks again.