Hello Few weeks ago, noises started coming from the left channel of the amplifier . Took it to a local tech and few days after he contacted me claiming he 'found' a small spring at the power amp boards that made a big mess and unit does not power on any more. After arguments with him that I took him a working unit I decided to take the amplifier back to me. The fuse on the back (6A -220/240 voltage) Was blown. Replaced with a new one and fuse blew again. Took his advice and removed ALL 12 output transistors . Tried to turn it on again and nothing - no power Checked all fuses on the protection board and all are OK. What should I be looking for? Would appreciate your help.