I was now able to power it on I did and so fare so good no smoke I started checking all the Voltage in the power supply circuitry and the power amp circuitry all are good next I putt it all back to gather all but the top hook up some speakers sounds good but a bit on the hot side with the 20KHz end that was a matter of doing a Idle current adjustment she lives using my scope at 1% THD 1K test tone 20Hz to 20KHz at 0.01 at 136.2 watts of power each channel 220 watts per channel peak not bad for as old amp